CN102421577A

CN102421577A - Feeder and extrusion device and method of use thereof

Info

Publication number: CN102421577A
Application number: CN2010800203311A
Authority: CN
Inventors: 迈克尔·韦纳; 鲍里斯·罗森布利特; 德米特里·施塔克; 谢尔盖·阿扎连科夫
Original assignee: VR Tek Pty Ltd
Current assignee: VR Tek Pty Ltd
Priority date: 2009-08-07
Filing date: 2010-03-15
Publication date: 2012-04-18
Also published as: GB201117399D0; WO2011014902A1; GB2484410A; AU2010281342A1

Abstract

The present invention generally relates to a feeder for particulate material such as particulate polymer waste. More particularly, the present invention relates to an extrusion device including the feeder for improved extrusion of materials such as particulate polymer waste which effectively changes the quality and characteristics/properties of the polymer waste to, for example, create commercially useful products such as, for example, devulcanised rubber powders or composite materials. In a specific embodiment the method includes the steps of (1) storing one or more batches of waste polymer in one or more respective hoppers, (2) regulating the flow of waste polymer supplied to a conveyor from the one or more hoppers, (3) transporting the waste polymer from the one or more hoppers and along the one or more conveyors to an extruder such that at least some interstitial air is expelled from the waste polymer, (4) feeding the waste polymer from the one or more conveyors to an extruder, and (5) passing the waste polymer through the extruder to provide a pulverised activated and devulcanised polymer product. The present invention is particularly useful for the processing of tyres including tyre segments or shredded tyre waste.

Description

Feeder and extrusion device and method for using thereof

Technical field

The present invention relates in general to and is used for the for example feeder of granular materials such as particulate polymers waste material.More specifically, the present invention relates to extrusion device, it comprises feeder; Said feeder is used to improve for example extruding of material such as particulate polymers waste material; This changes the quality and the properties/of polymer waste effectively, can commercial product, for example desulfurization rubber powder or composite for example to form.

Said extrusion device is applicable to the supply of material, especially for the material of the polymer powder that produces high activity, polymolecularity.

Though the processing with reference to deriving from the polymeric material of tire will be convenient to describe the present invention, the invention is not restricted to this application, so and can be used for processing the polymer or the other materials of the other types that can be used for other application.And, though feeder will be special in describing for the extruder charging, the invention is not restricted to use, and it can be used for the device feeding to other types with this device.

Background technology

The discussion that runs through this specification is owing to inventor's understanding or inventor produce the identification of the problem of some correlative technology fields, and the discussion to file, device, behavior or knowledge that comprises in this specification is used to explain background of the present invention.Should not be considered to approve that any material forms the priority date same day of a part of or of the present disclosure of prior art storehouse and requirement in this article or the general knowledge in the correlative technology field in Australia or the other countries before.

Any discussion that it will be appreciated that the file, device, behavior or the knowledge that comprise in this specification is used to explain background of the present invention.Further, the discussion that runs through this specification is owing to inventor's understanding and/or inventor produce the identification of the problem of some correlative technology fields.And; Any discussion of the material of for example file, device, behavior or the knowledge that comprises in this manual is used for according to inventor's knowledge and experience background of the present invention being described; And therefore, any such discussion should not be considered to approve that any material forms the priority date same day of a part of or of the present disclosure of prior art storehouse and requirement in this article or the general knowledge in the correlative technology field in Australia or the other countries before.

The tire waste material

Polymer waste, for example used tire has become worldwide economy and ecological problem.Tire comprises multiple polymers, and said polymer comprises natural rubber copolymer and synthetic rubber, for example SBR (butadiene-styrene rubber) and butadiene rubber, cyanic acid rubber, isoprene rubber, neoprene and polysulfide rubber.Tire also comprises metal, for example zinc and steel.Multiple other organic and inorganic chemistry materials also add the tire polymer to, comprise vulcanizing agent, promoter, inhibitor, pigment, filler, association agent, softening agent, anti-oxidant and drier.

A large amount of current methods that are used to dispose overdue tire of life-span are not merely the representative as the economic waste of raw-material polymer, but also facilitate the ecological problem relevant with the customary practice of in land and marine environment, dumping rubbish.Therefore, there is the method that is used to dispose or reprocess tire of multiple prior art, comprises burning, pyrolytic and regeneration.Extruding is the technology that can be used in tire disposal or the reprocessing, is used in particular for waste disposal is suitable for the requirement of downstream process.

Extrude general introduction

Extruder extruding feed material is exerted pressure, and extrudes from extruder up to it.Have a lot of different extrusion equipment variants, but major part generally includes and is used for splendid attire and supplies with raw-material hopper and hydraulic pressure that is used to exert pressure or mechanical actuation device.Most of extruder comprises the mould (dye) that is used for profile extruded final products.

The device that is used to exert pressure generally includes by motor-driven list or double helix pusher, or by hydraulically powered hammer ram.Be generally used for that screw rod in the extruder comprises single-screw sheet metering screw, single divergence type screw rod, two divergence type screw rod, becomes tooth pitch flight, multi-head spiral sheet, flight and two-stage screw rod (being used for degassing extruder) crack.

Expressing technique is described as " heat ", " temperature " or " cold " usually.Hot-extrudablely at high temperature carry out, preventing the materials processing sclerosis, and make it be easier to promote material, especially, if it passes through mould.But warm extrusion goes out being higher than room temperature be lower than under the material recrystallization temperature to carry out.It is often used in obtaining balance between required power, plasticity and the final extrusion characteristics.Cold-extruded go out or carry out near room temperature.Cold-extruded goes out to have and is superior to hot-extrudable several advantages, comprise do not have material oxidation, more accurate tolerance and surface of good processing.

When feeding comprised granular materials, particle was packed in the feed hopper usually, and wherein feeding is compressed by loosely, and a large amount of air are absorbed in.The air that is absorbed in is carried the screw rod into extruder usually from feed hopper, this causes adverse effect to its efficient.And, the particle feeding have usually vibration absorption with make particle each other resilience leave and other surperficial physical characteristics of extruder hopper and feed pipe are left in resilience.This possibly cause adverse influence to extruder, its efficient and the characteristic of extruding product.

The productivity of extruder, the productivity of particularly relevant with the processing of the mechanism that is used to exert pressure extruder are at least in part through supplying with the efficient decision of its feeding material.

Therefore, attempted in a large number providing and optimize material feeding process and thereby improve the device of the gross efficiency of extruder.For example, in the extruder of some prior aries, supplying with to the material of extruder can be directly through having the very drawing-in device of simple structure, for example RU 2325277 and US5, those described in 284,625.

The drawing-in device that other are more accurate, those as describing among the RU 27778 comprise additional features, for example pusher and the axle with blade.JP11349727 has described the drawing-in device of the use that comprises plunger.In addition, some drawing-in devices stand vibration or pulsation comes auxiliary material to supply with.But the drawing-in device of prior art does not significantly improve the efficient or the productivity of extruder.

And the drawing-in device of prior art is not a high energy efficiency, and makes complicated.

Prior art patent RU 2329893 has described has the extruder of supplying with and compressing compartment; Comprise cylindrical shell with charging and discharge openings; Said compartment has its oneself inside pusher, is used for polymeric material is supplied with and is pressed to the feeding zone of the screw device of extruder.

One of shortcoming of the extruder of describing among the RU 2329893 comprises and need be used for polymeric material pack into cylindric feeding and the additional feeding container that compresses compartment.And the feeding mechanism of the extruder of prior art is inappropriate for the charging of the particle of the feeding material of regulating and control different grain size and/or unit weight.The adjusting of the rotary speed of the screw device in the feeding mechanism self is not enough to optimize and compresses and extrude.

The technology of known other prior aries is used additional ultrasonic technology.For example, the technology described in the WO9400497A1 is added to the outside of extruder main body, and is used to change the quality and the characteristic of polymer waste.One of shortcoming relevant with the technology of describing among the WO9400497A1 is that it does not influence actual expressing technique, and it only can be used in pulverizing.

Usually another shortcoming relevant with the feeder of prior art is, it can not be simultaneously from having different qualities, for example feeding in the separate polymer scrap feed material of varying particle size, unit weight or polymer quality.

Sulfuration and desulfurization

Sulfuration is the thermochemical processes that sulphur is attached to the performance of the polymer product desired that is used to provide manufacturing in the polymer.It is widely used in the tire production especially.Usually, in order to use polymer waste, at first need use mechanical energy and heat energy and chemical substance pinching compound back and forth from tire and other sources.The first step that reclaims is desulfurization.

Desulfurization is the intermolecular linkage of division polymer, and for example carbon-sulphur or sulphur-sulfide linkage further shorten the technology of polymer chain.This carries out through chemical, ultrasonic, microwave or biological processing usually.

Pulverize through extruding

But in the desulfurization of waste material polymer or before being used for further handling, the waste material polymer must be reduced to undersized particle through chopping up, grind or pulverizing.

The crushing technology that is used for polymer relies on screw extruder usually; Double screw extruder particularly; Depending on the extrusion shearing power that on polymer, applies under the specified temp of polymer (report of the refuse integrated management board of directors, http://www.ciwmb.ca.gov/Publications/Tires/62204008.pdf are given in Evaluation of Waste Tire Devulcanisation Technologies-2004 CalRecovery in December Inc California).According to this method, also proposed to use the solid state shear of the rubber scrap of double screw extruder and single screw extrusion machine to extrude pulverizing.

In this technical process, for example only desulfurization slightly of polymer such as rubber for tire.

Pulverizing one of relevant problem with the use extruder is, owing to unmanageable extruding and shear action in pulverizing the district produce a large amount of heat.

Especially, exist optimization is extruded and the needs of technology that product is fit to the requirement of downstream process of extruding that processing can be provided.

Summary of the invention

An object of the present invention is to provide more effective technology supplies with the feeding material and handles.Another object of the present invention provides more effective device and technology is supplied with the particulate polymers waste material to extrude.

The purpose of this invention is to provide a kind of technology, method and apparatus, it can provide the extruded polymer of processing to be fit to the requirement that use in downstream.

Another purpose of the present invention provides a kind of feeder apparatus and method of comparing with correlation technique and reducing cost.

Another purpose of the present invention provides a kind of more feeder device of high energy efficiency of per unit product of comparing with correlation technique.

Another purpose of the present invention provides a kind of and correlation technique the compare feeder that reduces cost and related extrusion device and method.

Another purpose of the present invention provides a kind of and correlation technique compare per unit the product more feeder of high energy efficiency and related extrusion device.

Another purpose of the present invention is simultaneously the polymer waste of different qualities to be supplied with and processing.

Another purpose of the present invention is to solve at least one shortcoming relevant with correlation technique.

The purpose of embodiment described herein overcomes or solves at least one of the defective pointed out above the relevant technology systems or the useful substitute of relevant technology systems is provided at least.

In first embodiment, the present invention provides a kind of feeder that is used for downstream process, and said feeder comprises:

One or more hoppers, it is used for material stored,

One or more conveyers, it is used for material is sent to downstream process from said one or more hoppers,

One or more adjusters, its be used to control from one or more hoppers be fed to one or more conveyers material flow and

A plurality of holes, it is related with said feeder, is used for air is discharged from said material.

In a preferred embodiment, hopper and adjuster are arranged to make a hopper to operate or replace another operation with another hopper.Perhaps, one or more adjusters are arranged to make from the flow of material of a hopper different with flow of material from another hopper.Flow can refer to volume, speed or some and transmit other relevant parameters of materials from one or more hoppers.

In another embodiment, feeder also comprises adjusting device, be used to add solid-state, liquid or gaseous material or its combination pipe box the location or move, and regulate vibrating device, for example the location of Vltrasonic device or move.

Usually, a plurality of holes also are arranged in the housing of one or more hoppers and one or more conveyers of said feeder.

Feeder preferably combines with the processing unit (plant) of for example extruder.Said extruder can be to design easily, for example has the traditional mechanical that is used for the extruder element or the extruder of fluid pressure drive device.Usually extruder comprises single screw rod or double screw extruder element.The circular cylindrical shell of extruder element can be the gun barrel that for example can get as war surplus.In special preferred embodiment, housing is the gun barrel that comprises rifling, and it improves the rotation of screw rod.

Preferably, the nearly part of the housing of extruder main body comprises a plurality of holes that are used to discharge air.Usually, these a plurality of holes have angled side walls, so that the size in each hole is maximum towards the outer surface of said housing.

Also preferred, the nearly part of said extruder housing has the bigger cross-sectional diameter of diameter than the remainder of housing.

In a second embodiment, the present invention provides a kind of Polymer Processing device, comprising:

Extruder, it is communicated with feeder, is used to pulverize the waste material polymer, and said feeder comprises:

One or more hoppers, it is used to deposit the waste material polymer,

One or more conveyers, it is used for the waste material polymer is sent to extruder from said one or more hoppers,

One or more adjusters, it is used to control the flow that is fed to the waste material polymer of one or more conveyers from said one or more hoppers,

A plurality of holes, it is related with said feeder, be used for air from said waste material polymer discharge and

A plurality of holes, it is related with said extruder, is used for air is discharged from said waste material polymer.

In a preferred embodiment; Feeder outlet cross-sectional area is than at least 1.5 times greatly of the cross-sectional areas of extruder main body; Under normal conditions, under feeder outlet cross-sectional area was circular situation, the cross-sectional diameter of feeder outlet was than at least 1.5 times greatly of the cross-sectional area diameters of extruder main body.

In another embodiment, said device comprises second extruder, and it supplies with the waste material polymer from said feeder.

As used herein, term " waste material " polymer is intended to broadly explain, for example refers to no longer by its original application needs or the polymer that forms as the excessive product of industrial process or accessory substance.

Usually the waste material polymer is supplied with batch of material, and each batch batch of material has different characteristic.For example, batch of material can comprise particles of different sizes, for example 5,10,20 or 25mm particulate or ball.Batch of material can be distinguished by other characteristics, for example different unit weight or polymer quality.The processing that can separately or be bonded to each other of the batch of material of identical or different characteristic, thereby mix the end product with desired characteristic is provided.The polymer batch of material can with in the feeding process with add other are solid-state, liquid state or gaseous additives are handled.

The feeder conveyer can have any structure easily, but generally includes auger or the plunger that is arranged in housing.Usually conveyer has three districts:

1. initial near region---in this district, the flow of polymer waste in from the hopper to the conveyer can be controlled.Clearance air begins hopper from the discharge of polymer waste, and in this district, continues;

2. middle district---in this district, transmit polymer waste through number of extruding usually.The discharge of clearance air continues in this district; With

3. the far field---in this district, polymer waste is controlled to the flow in the extruder, and further discharges little air through additional extruding.Solid-state, liquid state or gaseous additives can preferably allow to get in this district, extrude or improve product quality to assist.

In special preferred embodiment, the housing that is used for the conveyer of extruder main body is a gun barrel, or the similar portions of retired weaponry.Gun barrel with rifling is preferred especially, because mobile and any auger wherein or the motion of screw rod of rifling auxiliary polyalcohol waste material.And the cross-sectional diameter of a lot of gun barrels reduces from the near region to the far field.The also auxiliary waste material polymer of this shape moves along the length of conveyer.

Usually a lot of holes will be present near region, middle district and the far field, and in one or more hoppers of feeder and in the near region of extruder main body.The hole allows air to discharge, otherwise air will be trapped in the gap between the polymer beads.This has the following advantages:

● under the situation of subsidiary efficient and output raising, improve along the filling and the flow of the particle of feeder conveyer and entering extruder,

● improve the filling of the particle in the extruder, this has reduced frictional force, the frictional force between the passage of particle and screw rod particularly,

● improve quality, and improve the product quality of downstream process with enclosing from the product of extruder,

● minimize the reaction of not expecting, for example possibly in extrusion, take place, the pyrolytic that particularly in the high temperature extrusion, takes place.

The control that is fed to the quantity of material of feeder conveyer realizes through the adjusting that is communicated with the place at hopper with conveyer usually.For example, control can be through regulating the size of opening, and opening comprises that polymeric material gets into hole or pipeline that conveyer passes through.When opening was the hole in the conveyer housing, its size can change through linearity or the nonlinear moving that forms housing a part of iris plate, plate or hatchcover.Housing can comprise for example scalable housing sections, its removable size that increases or reduce opening.Perhaps, housing can comprise one or more slidably hatchcovers, and it can linearity moves and opens or closes opening.

In a preferred embodiment, feeder comprises impulse generator.Pulse can produce through Vltrasonic device or vibrative other devices.Preferably, impulse generator comprises the part of feeder, and tightly near the main body setting of extruder.Usually, impulse action improves its flow and supply in from the conveyer to the extruder on feeder.Pulse also improves the filling of polymer beads usually, impels leaving of clearance air, and the influence that reduces to rub.When impulse generator is ultrasonic generator, the advantageously desulfurization of auxiliary polyalcohol.Ultrasonic wave can destroy key, particularly carbon-sulfur bond and sulphur sulfide linkage in vulcanized rubber in to a certain degree (and existing especially under the situation of pressure and heat).The softening usually polymer sheet of ultrasonic wave is convenient to reprocessing, is shaped and sulfuration again.

Extruder generally includes single screw rod or twin-screw.To be fed to the quality and the volume of raw material of extruder very important for improving each operation cycle to the optimization of the supply of extruder for polymer waste, thereby improve its output, and be used to reduce friction and discharge air.

In the third embodiment of the present invention, a kind of method of Polymer Processing is provided, comprising:

A collection of or many batches of waste material polymer are left in one or more hoppers separately,

Adjusting is fed to the volume of the waste material polymer of conveyer from said one or more hoppers,

Said waste material polymer is sent to extruder from said one or more hoppers and along said one or more conveyers, so that at least some clearance airs discharge from said waste material polymer,

With said waste material polymer from said one or more conveyers supply to extruder and

Said waste material polymer is transmitted through said extruder, with the activity that pulverizing is provided and/or the polymer product of desulfurization.

When needing, the waste material polymer also can stand further desulfurization after extruding.

Usually, desulfurization realizes through following method or method combination:

● Mechanical Method---desulfurization can be usually under the situation that has reclaimed oil and high temperature, through the strong machining realization of waste material polymer.Except the effect of extruding, because the screw rod rotation, the particle of waste material polymer stands high extrusion shearing power and reverses, thereby pulverizes the waste material polymer beads.They be generally powder, and desulfurization are left slightly from pulverizing the district with littler particle size.The particle of preparation has irregular shape, loose structure and rough surface usually.It is applicable to usually after being exposed to heat and pressure and is configured as product.

● ultrasonic method---as mentioned above, device of the present invention can comprise ultrasonic generator.Perhaps, the product from extruder can stand sonicated subsequently.But the ultrasonic wave rapid damage that is in certain power level is crosslinked, and makes the polymer desulfurization.Heat and pressure can promote this technology.

● can there be organic solvent in chemical method---desulfurization usually, for example under the situation of naphtha, toluene, benzene or cyclohexane, realizes that through using the chemical substance treatment sulfide polymer said chemical substance comprises solvent, for example the 2-butanols; The sulfenyl chemical substance, for example single sulfide, disulphide, polysulfide and mercaptan; And inorganic reagent, for example alkali metal.Applying of heat or pressure can be used for promoting chemical reaction.For some chemsweet process, it also is necessary milling.Polymer waste can chemical treatment in extrusion, but more generally, will be fed to the postorder chemical treatment technology from the product of the pulverizing of extruder.

● microwave method---owing to apply microwave energy, also desulfurization can take place.Microwave is given birth to heat fast and equably in the waste material polymer, but only comprises under the situation of polar group at the waste material polymer usually.Polymer waste can use microwave treatment in extrusion, but more generally will be fed to microwave treatment technology subsequently from the product of the pulverizing of extruder.

● bioanalysis---desulfurization can obtain through for example biological reagent such as Thiobacillus and chemolithotrophic bacteria, but biological desulphurization is limited to the surface of waste material polymer usually.Biological desulphurization is also slow relatively, and is applied to the crushed products from extruder usually, rather than in extrusion.

● the desulfurization of digestion method---waste material polymer can apply caustic-alkali aqueous solution or steam realization through can randomly reclaiming in existence under the oil condition.

In the 4th embodiment, the present invention provides a kind of and is used at least in part the technology of waste material polymer desulfurization, and said technology comprises:

With the waste material polymer transmit through Polymer Processing device of the present invention and

Make said waste material polymer stand to be selected from the sulfur method of the group that comprises Mechanical Method, chemical method, ultrasonic method, microwave method, bioanalysis, digestion method or its combination,

So that the desulfurization polymer product of pulverizing to be provided.

In the 5th embodiment, the present invention provides a kind of technology that is used for making at least in part the desulfurization of waste material polymer, and said technology comprises:

The waste material polymer is transmitted through before the Polymer Processing device of the present invention or simultaneously said waste material polymer is heated and

So that the desulfurization polymer product of pulverizing to be provided.

In a preferred embodiment, the water that in the main body of extruder, is used for process for cooling also is used for the initial heating of raw material, with the required energy of expressing technique in the main body that reduces extruder, thereby the end product with desired characteristic is provided.

The present invention is based on and recognize, the mode that feed is provided to downstream process or device employing works to the performance of the feeding in this technology or the device and the characteristic of end product significantly.Especially, based on recognizing, the speed self of controlling conveyer simply also is not enough to optimize the feeding flow, and the filling and the feeding flow of enclosing will be through removing clearance air, and combine the control feeding to optimize to the quantity delivered and the speed of conveyer of the present invention.

Advantage provided by the invention comprises following listed:

● improve the productivity of this technology;

● improve the output quality of this technology;

● reduce to be sent to the air capacity of this technology;

● improve the mobility and " flowability " that transmit through the polymeric material of feeder propeller and downstream expressing technique;

● reduce the required energy of per unit product;

● reduce the required Capital expenditure of feeder;

● reduce the maintenance requirement of feeder;

● reduce the required Capital expenditure of extruder; With

● reduce the maintenance requirement of extruder.

Apparatus and method of the present invention also have and polymer waste, comprise the advantage of other process compatible of tire waste material.For example, following scheme 1 illustrates the method for optimizing of the batch of material of the tire waste material that technological preparation according to the present invention is used to extrude.Waste material in batches (according to whether comprising whether being one piece tyre or segmentation tire flexible polymer section or hard polymer section, or not having reinforcing material) can be reduced to sulfuration or desulfurization product.

Scheme 1

It is obvious that other scope of applications of the embodiment of the invention become from the detailed description that this paper provides at the back.But should understand; Though it is the preferred embodiments of the present invention that detailed description indicates with concrete example; But only the mode with example provides, because describe in detail from this, the various changes and the modification that drop in spirit of the present disclosure and the scope will become obvious to those skilled in the art.

Description of drawings

To illustrate and describe the present invention now, accompanying drawing illustrates special preferred embodiment of the present invention, in the accompanying drawing:

Fig. 1 is the sectional planar view of feeder of the present invention, and said feeder is suitable for feed material is sent to the extruder that shows with cross-sectional end view through horizontal conveyer.

Fig. 2 is the plan view at top of feeder and the extruder of Fig. 1.

Fig. 3 is the sectional planar view of another embodiment of feeder of the present invention, and said feeder has vertical conveyor, and it is sent to horizontal extruder with feed material.

Fig. 4 is the sectional planar view of another embodiment of feeder of the present invention, and said feeder has slope conveyor, and it is sent to horizontal extruder with feed material.

Fig. 5 is the three-dimensional view that is applicable to the extruder among the present invention.

Fig. 6 is the sectional planar view along A-A of the device of Fig. 4.

Fig. 7 is the sectional planar view along B-B of the device of Fig. 4.

Fig. 8 is the sectional planar view along E-E of the device of Fig. 2.

Fig. 9 is the sectional planar view of main body of housing and the related extruder of feeder.

Figure 10 is the sectional planar view with feeder of a plurality of hoppers of the present invention.

Figure 11 is a dual hopper feeder of the present invention and the sectional planar view of related conveyer and double screw extruder.

The specific embodiment

List of parts

As used herein, the Reference numeral among the figure is with corresponding with lower component:

1 feeder

2 extruders

The housing of 3 conveyers 6

4 are used for the drive unit of auger 12

5 hoppers

The conveyer of 6 feeders 1

The feeding zone of 7 extruders 2

8 are used for the feeding zone of conveyer 6

9 are used for the drive unit of plunger 33

10 are used for the drive unit of extruder screw 18

11 hatchcovers

12 are used for the auger of conveyer 6

13 feeder supports

14 levers

15 feeder outlet openings

16 impulse generators

17 holes

18 extruder screws

The bottom of 19 conveyers 6

20 are used for the pivot of lever 14

The anti-ductile portion of 21 housings 3

22 adjusters (part)

23 adjusters (part)

24 connecting rods

The stationary parts of 25 conveyers 6

The far field of 26 conveyers 6

The middle district of 27 conveyers 6

The near region of 28 conveyers 6

29 ingress ports

30 gatherers

The face of 31 plungers 33

32 holes

33 are used for the plunger of conveyer 6

34 are used for the housing of one or more hoppers 5

35 are used for the pipeline of gaseous additives

36 are used for the pipeline of solid-state or liquid additive

The dividing plate of 37 hoppers 5

38 are used for the guide rail of dividing plate 37

39 are used for the housing of one or more extruders 2

Fig. 1 is the sectional planar view of the feeder 1 of particularly preferred embodiment of the present invention.

Feeder 1 comprises the hopper 5 that is used for store aggregated thing feeding sheet.Usually hopper 5 is filled with the polymeric material batch of material of separation, and for example about 5,10,20 or particulate or the ball of 25mm.Feeding passes the feeding part 8 that hopper 5 gets into conveyer 6.

Drive unit 4 makes horizontal conveyer 6 rotations of the auger 12 that comprises in the housing 3.Independent controlling organization (not shown) is through the rotary speed of drive unit 4 adjustable screw pushers 12.Auger 12 transports polymer feeding sheet and leaves hopper 5.Conveyer 6 has far field 26, middle district 27 and frusto-conical near region 28.

The amount of polymer sheet that supplies to auger is through

control device

22 and 23 adjustings,

control device

22 and 23 for for example carriage or alternately, scalable pipe box etc.

The size of the opening of the open feeding part 8 of

adjuster

22 and 23 scalable conveyers 6.For the grain graininess of each feeding, require to carry out the different initial adjustment of input quantity through

adjuster

22 and 23.

The feeding of different size is answered individual processing, so that the filling of the feeding in the extruder screw 18 will make efficient, productivity and the product quality optimization of extruder 2.

Auger 12 is provided to polymer sheet in the main body of extruder 2, and said extruder 2 shows with cross-sectional end view in this view.

Auger 12 comprises and is used for discharging the

hole

32 and 17 of air in the process of transporting.The hole also can be arranged in the housing of extruder 2.

In this embodiment, feeder 1 also comprises the impulse generator 16 that produces pulse, for example produces ultrasonic pulse, is used for the polymer sheet of softening sclerosis, further be convenient to it and pass through, and the discharge of auxiliary gap air.Passing through in the feeding part 7 that polymer sheet gets into extruder 2 optimized in the position of selector-pulse generator.This has improved filling with enclosing, air is discharged from the gap between the particle, and reduced the friction between feeding and the screw rod.When extruder 2 comprises the high-temperature region, air extrude advantageous particularly, thereby minimize adverse effect, the chemical reaction of not expecting in the (not shown) of for example said high-temperature region.

The frequency of the pulse that is produced by impulse generator 16 is according to the characteristic and size change of the feeding material that is provided to extruder.The housing of conveyer 6 can comprise pliable and tough elastic part 21, and it is convenient to the transmission of pulse.

The ingress port 29 that comprises pipe box is provided for adding additive.These processing additives can be gaseous state, liquid state or solid-state form, extrude or devulcanization with improvement.For example, can comprise that additive forms some characteristics and the material composition from the product of extruder.Alternately or additionally, can add the processing that additive improves the polymer feeding.Frictional force between the raw material that especially, can use lubricating additive to reduce to compress in the extruder 2 and the passage of screw rod 18.

Fig. 2 is the top plan view of the extruder of diagram feeder 1 and extruder 2.Fig. 2 illustrates the

hole

17 and 32 that is used to discharge air in more detail, and pulse is sent to the impulse generator 16 of the feeding zone 7 of extruder 2.In this view, can see the gatherer 30 that is used for from the end product of extruder 2.

Fig. 3 is the sectional planar view of another embodiment of feeder 1 of the present invention.In this embodiment, conveyer 6 is vertical orientated, and polymer feeding sheet is sent in the horizontal extruder 2.This view has clearly illustrated the outlet opening 15 of feeder 1, and at these outlet opening 15 places, feeder 1 combines at feeding zone 7 places with extruder 2.

Conveyer 6 is supported in the hopper 5 of feeder 1 by support 13.Conveyer 6 is through drive unit 4 rotations.Hopper 5 comprises hatchcover 11, is used for cleaning and removes polymer sheet and deposit.

The amount of the polymer sheet that is transmitted by conveyer 6 is regulated through lever 14, and lever 14 is around pivot 20 operations, and said pivot 20 moves

telescopic slide block

22 and 23 on the housing 3 of conveyer 6.

The flexible resilient part 21 of conveyer housing 3 is connected to extruder 2 with the bottom 19 of conveyer.Joint 21 comprises the hole 17 that is used to discharge air.Part 21 is a frusto-conical.

Inlet 29 allows to add various other additive materials with gaseous state, liquid or solid-state form as required.

Extruder 2 has the screw rod 18 by drive unit 10 rotations.

Fig. 4 is the sectional planar view of another embodiment of feeder 1 of the present invention, and said feeder 1 has the conveyer 6 of inclination, and conveyer 6 comprises plunger 33.Plunger 33 moves through fluid pressure drive device 9.The face 31 of plunger has straight or crooked shape according to circumstances according to the connection angle between conveyer 6 and the extruder 2.Whether conveyer 6 comprises that auger or plunger or other devices that are used to transmit will depend on the performance of polymer feeding.For example, the feeding effect of need pulsing of some raw materials is to optimize its transmission to the screw rod 18 of extruder 2.In this case, the conveyer 6 that comprises plunger 33 will be preferred, and said plunger 33 can be pulsed in its mechanism.

Conveyer 6 has the far field 26 that begins most, middle district 27 and near the near region 28 of extruder 2.Plunger 33 can have continuous or discrete moving up and down, and the polymer feeding is provided, and 2 pulsation transmits from hopper 5 to extruder.

Fig. 5 illustrates the 3-D view of the housing 3 of conveyer 6, has shown that the scalable slip of

adjuster

22 and 23 is moved, and this moves the opening size of the feeding zone that is adjusted to conveyer 8.This control can get into conveyer and be sent to the amount of the polymeric material of extruder 2.

The ingress port 29 of pipe box form allows to add multiple material with gaseous state, liquid state or solid-state form as required, with secondary process.

Conveyer 6 can be with respect to extruder 2 from vertically placing with any direction easily to tilting to level.

Feeding zone 8 comprises the connecting rod 24 that is connected with stationary parts 25, and it provides inner support for housing 3, and slide mechanism is provided for adjuster 22.

Fig. 6 is the sectional planar view along the A-A of the device of Fig. 4.In this view, can see the housing 3 of plunger 33 filling conveyers.Also illustrate adjuster 22 with hole 17.

Fig. 7 is the sectional planar view along the B-B of the device of Fig. 4.In this view, shown the face 31 of plunger 33.

Fig. 8 is the sectional planar view along the E-E line of the device of Fig. 2, has shown the hopper 5 and housing 3 of conveyer.Hatchcover 11 openings are to hopper 5, are used to clean, remove or purge polymeric material from hopper 5, deposit etc.Hole 32 allows air to discharge, and said air is trapped between the polymer feeding sheet when conveyer is in inclination or horizontal direction.

The conveyer 6 of the feeder 1 that picture in picture shows preferably has the diameter than big at least 1.5 times of the diameter of the screw rod 18 of extruder 2, to optimize the processing and the productivity of extruder.More preferably, conveyer 6 has big 2 to the 2.5 times diameter of diameter than the screw rod 18 of extruder 2.

Fig. 9 is the sectional planar view of main body of housing and the related extruder of feeder of the present invention; Hopper shell 34 and extruder housing 39 have been shown; Illustrate a plurality of

holes

17 and 32 along its longitudinal axis, through said hole, air can leave with one or more extruders 2 from one or more hoppers 5.

Figure 10 is the sectional planar view of feeder of the present invention.In this embodiment, feeder 1 comprises hopper 5, and it is separated to form two

littler hopper

5a, 5b by dividing plate 37.In other embodiments, dividing plate 37 is processed movably.And in other embodiments, hopper 5 can further be separated to form more hopper.Littler hopper 5a and each among the 5b are deposited the polymer beads batch of material of different size and/or different quality.

Polymer beads is sent to the feeding part 8a of conveyer 6a from hopper 5a, and is promoted along conveyer 6a by auger 12a.Similarly, the polymer beads of different size and quality is sent to the feeding part 8b of conveyer 6b from hopper 5b, and is promoted along conveyer 6b by auger 12b.The separate regulating device can be used for

hopper

5a and 5b separately.Adjuster can not worked or with different speed work with respect to another.With this mode, the mixture of polymers of different quality can be sent to extruder, and thereby control extrude the composition of product.

Pipeline 35 allows to add gas, and pipeline 36 allows to add solid and/or liquid.Use the polymer sheets of vibrating device 16 softening sclerosis, and further be convenient to it and pass through the discharge of auxiliary gap air as required.Moving of the control of guide rail 38 permission movable barrier 37 is to confirm its end position and the relative positions related with it.Hole 17 in conveyer and the extruder housing and 32 allows to discharge air.

Thereby in this embodiment, two batches of different polymer are sent in the conveyer that separates in the extruder 2 with single screw rod 18.

Figure 11 is a dual hopper feeder of the present invention and the sectional planar view of related conveyer and double screw extruder.In this embodiment, feeder 1 comprises hopper 5, and it is separated to form two

littler hopper

5a, 5b by dividing plate 37.Each of sub-hopper 5a and 5b is deposited the batch of material of the polymer beads of different size and/or different quality.

Adjuster

23a, 23b through regulating member slidably the position and regulate each sub-hopper incidentally and the size of conveyer 6a separately, the opening between the 6b is controlled the flow from the polymer beads of separately sub-hopper 5a, 5b.An adjuster can not worked or different control with respect to another adjuster.With this mode, can the mixture of polymers from the different quality of

hopper

5a and 5b be sent to extruder, and thereby control extrude the composition of product.

Polymer beads is from sub-hopper 5a, and 5b is sent to its conveyer 6a separately, and the feeding part 8a of 6b is among the

8b.Auger

12a, 12b are along

conveyer

6a, and 6b promotes polymer beads.Adjuster separately can be used for separately hopper 5a and 5b.Ultrasonic pulse generator 16 is the charging of auxiliary polyalcohol particle as required.Impulse generator 16 and adjuster 23a, the relative position of 23b can be regulated through movable adjusting device (not shown), said movable adjusting device driving movable dividing plate 37, these elements are connected to movable barrier 37.

In this embodiment, in independent conveyer, two batches of different polymer batch of materials are sent to and have twin-screw 18a, the extruder 2 of 18b.This embodiment of feeder and extruder comprises pipeline 35 that is used for gaseous additives and the pipeline 36 that is used for solid-state or liquid additive, and additive can be worked in the particulate polymers.

When polymer beads from sub-hopper 5a, 5b and along conveyer 6a, when 6b transmitted, hole 17 allowed air to discharge.These holes 17 can be arranged on for example conveyer 6a, and the adjuster 23a in the housing of 6b is in any appropriate location among the 23b.

In special preferred embodiment, the feeding batch of material that is used for device of the present invention and technology derives from the tire of cutting apart according to the method for AU 2006241342.Said section comprises:

1. crown, it is for the kiss the earth of tire and grip is provided and the part of rotary stability.It generally includes by tyre surface thick, that the hard polymer composition is processed, with wear-resistant, cutting with collide, and run on the opposing road surface and because fricative high temperature.The tyre surface one is attached to the belt of being processed by steel wire or fabric.It reduces the collision that the road surface runs into as strengthening body, and keeps stability through widening the tyre surface that contacts with the road surface.The inner surface of crown (and inwall) passes through the airtight polymer wadding of the special-purpose replacement inner tube of a tyre by liner.

2. sidewall, it protects carcass, and it is the interior cord of tire, and its supported weight and absorbing is collided.Sidewall is usually by processing with tyre surface different polymer composition.It is thinner, and is designed in response to the ground surface properties and makes tire inflation or compression, to keep good ride quality.The special-purpose airtight polymer wadding that the inner surface of sidewall (and crown) passes through to replace the inner tube of a tyre is by liner.

3. tyre bead, it is processed by steel bead wire and polymer core.Tyre bead is fixed to wheel hub with tire, and the fixing end of cord.

When it separated, these sections can be according to whether it comprises hard polymer or flexible polymer and whether has the enhancing part classification.When being divided into batch of material according to these quality, batch of material is being distinguished the first being processed chopping usually according to the method for the invention, or processes simultaneously in the hopper that separates of the extrusion device of packing at least.

Though the present invention has combined its specific embodiment to be described, and should understand, it can further be revised.The application is intended to cover usually according to principle of the present invention and comprises of the present invention any distortion application or the adaptation form that departs from content with the disclosure; It and may be used on the essential characteristic that this paper proposes under the present invention in the known or conventional techniques in the technical field.

Because the present invention can implemented in many forms and do not depart from the spirit of essential characteristic of the present invention; Therefore, should understand, the foregoing description does not limit the present invention; Unless otherwise indicated, but should be broadly interpreted as drop on of the present invention in spirit defined in the appended claims and scope.It is exemplary that said embodiment should be regarded as being merely in all respects, rather than restrictive.

Various modification and equivalent arrangements should be included in the spirit and scope of the present invention and accompanying claims.Therefore, specific embodiment is interpreted as wherein can realizing the example of the several different methods of the principle of the invention.In the claim of back, device adds the function subordinate clause to be intended to cover the structure of carrying out attributive function, is not only the equivalents of structure, and is equivalent structure.

When using in this manual; " comprise/comprise " and " having/contain " should be considered to detail characteristic, whole things, step or the parts that have statement, rather than get rid of and exist or add one or more other characteristics, whole things, step, parts or its combination.Thereby; Only if clear and definite requirement in addition runs through specification and claims in the literary composition, term " comprises ", " comprising ", " having ", " containing " and similar term are understood to include meaning; Different with eliminating or exhaustive meaning, that is to say that the meaning is " including but not limited to ".

Claims

1. feeder that is used for downstream process, said feeder comprises:

One or more hoppers, it is used for material stored,

2. feeder according to claim 1, wherein, at least one adjuster comprises the device of the size that is used to change the opening between hopper and the conveyer separately.

3. according to claim 1 or the described feeder of claim 2, wherein, at least one conveyer is by two or more hopper feed.

4. according to claim 1 or the described feeder of claim 2, wherein, said feeder additionally comprises impulse generator.

5. according to claim 1 or the described feeder of claim 2, wherein, said feeder additionally comprises the pipeline that is used for solid-state, liquid state and/or gaseous additives.

6. Polymer Processing device comprises:

One or more hoppers, it is used to deposit the waste material polymer,

The a plurality of holes related with said feeder, be used for air from said waste material polymer discharge and

The a plurality of holes related with said extruder are used for air is discharged from said waste material polymer.

7. Polymer Processing device according to claim 6, wherein, the conveyer of said feeder has the cross-sectional area bigger 1.5 times than the cross-sectional area of said extruder.

8. Polymer Processing device according to claim 6, wherein, said feeder conveyer housing comprises gun barrel.

9. Polymer Processing device according to claim 6, wherein, the housing of said extruder comprises gun barrel.

10. according to each described Polymer Processing device in the claim 6 to 9, wherein, said adjuster comprises one or more devices that are used to change the opening size between hopper and the conveyer separately.

11. according to each described Polymer Processing device in the claim 6 to 10, wherein, said feeder additionally comprises impulse generator.

12. according to each described Polymer Processing device in the claim 6 to 10, wherein, said feeder additionally is included in the plunger in the said feeder conveyer, it is operated with pulse driving device.

13. according to each described Polymer Processing device in the claim 6 to 12, wherein, at least one conveyer is by two or more hopper feed.

14. according to each described Polymer Processing device in the claim 6 to 13, wherein, said feeder comprises the movable barrier with related guide rail, it controls the position of said hopper with respect to the feeding zone of said conveyer and said extruder.

15. the method for a Polymer Processing comprises:

Adjusting is fed to the flow of the waste material polymer of conveyer from said one or more hoppers,

Said waste material polymer is transmitted through said extruder, so that the living polymer product of pulverizing to be provided.

16. technology according to claim 15, wherein, said waste material polymer comprises tire.

17. technology according to claim 16, wherein, said tire is selected from the group that comprises one piece tyre or segmentation tire.

18. technology according to claim 15, wherein, each of various batch of materials is selected from the group that comprises tire tread, sidewall and tire bead or its combination.

19. one kind is used at least in part the technology of waste material polymer desulfurization, said technology comprises:

With the waste material polymer transmit through according to each described Polymer Processing device in the claim 6 to 14 and

So that the desulfurization polymer product of pulverizing to be provided.

20. a technology that is used for making at least in part the desulfurization of waste material polymer, said technology comprises:

The waste material polymer is transmitted through according to before each described Polymer Processing device in the claim 6 to 14 or simultaneously with said waste material polymer heating and

So that the desulfurization polymer product of pulverizing to be provided.

21. a technology according to claim 20 wherein, is transmitting the waste material polymer through before the Polymer Processing device and/or simultaneously, is used to from the heat of the cooling system of said extruder said waste material polymer heated.