US3885774A - Apparatus for preparing and dispensing mixtures of concrete and fibres - Google Patents

Apparatus for preparing and dispensing mixtures of concrete and fibres Download PDF

Info

Publication number
US3885774A
US3885774A US380193A US38019373A US3885774A US 3885774 A US3885774 A US 3885774A US 380193 A US380193 A US 380193A US 38019373 A US38019373 A US 38019373A US 3885774 A US3885774 A US 3885774A
Authority
US
United States
Prior art keywords
hopper
scroll
blending
feed screw
mixing machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US380193A
Inventor
David Michael Harris
James Albert Harvey
John Alfred Clipston
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Caledonian Mining Co Ltd
Original Assignee
Caledonian Mining Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Caledonian Mining Co Ltd filed Critical Caledonian Mining Co Ltd
Application granted granted Critical
Publication of US3885774A publication Critical patent/US3885774A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/805—Mixing plants; Combinations of mixers for granular material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/40—Mixing specially adapted for preparing mixtures containing fibres

Definitions

  • fibres can be loaded, either the hopper being reciprocable across the outlet to the feed scroll or the hopper and screen being relatively reciprocal.
  • a mixing machine in accordance with the invention comprises a feed for cement and aggregate incorporating a rotatable scroll or worm (preferably two, one for the cement and one for the aggregate) and a hopper for fibres, the discharge outlets of the or each of the feed scrolls or worms and of the fibre hopper communicating with a common rotatable blending scroll or worm, the fibre hopper having a mesh or screen on which fibres can be loaded either the hopper being reciprocal across the outlet to the feed scroll, or the hopper and screen having a relative reciprocation or vibration.
  • a feed for cement and aggregate incorporating a rotatable scroll or worm (preferably two, one for the cement and one for the aggregate) and a hopper for fibres, the discharge outlets of the or each of the feed scrolls or worms and of the fibre hopper communicating with a common rotatable blending scroll or worm, the fibre hopper having a mesh or screen on which fibres can be loaded either the hopper being reciprocal across the outlet to the feed scroll, or the
  • the hopper is reciprocated over an outlet to the blending scroll, by a crank pivotally mounted to the hopper and to an eccentric point on a drive wheel.
  • the equipment is suitable for any form of fibre and the mesh of the hopper can be changed so that the size and shape of mesh is appropriate to the particular type of fibre and to the feed desired.
  • Equally the feed of fibres may be varied by varying the stroke or frequency of reciprocation of the hopper, by varying the level of fibres maintained in the hopper during operation, or by varying the size of the outlet from the hopper.
  • fibres are fed to the hopper through a delivery tray and the tray may be vibrated to assist even flow of fibres. If the delivery tray is disposed over the mouth of the hopper then the level of fibres contained therein can be maintained substantially constant as the hopper reciprocates beneath the feed end of the tray.
  • the hopper may be mounted on wheels or on slides for reciprocal movement across its outlet port.
  • the fibres may be made of metal, plastics, glass or any other convenient material and may be made of any desired shape or configuration to suit the desired ultimate concrete mix.
  • the relative proportions of the ingredients of the mix may be varied by varying the speed of rotation of each feed scroll or worm or by adjusting the pitch or size of the flights of the feed scroll or worms.
  • the apparatus may also include a rotary blowing unit into which the common blending scroll or worm discharges and which comprises a venting hopper connected to a source of pressurised air and in which a rotor formed with a number of blades rotates.
  • a rotary blowing unit into which the common blending scroll or worm discharges and which comprises a venting hopper connected to a source of pressurised air and in which a rotor formed with a number of blades rotates.
  • the mix on entering the hopper is rotated in the pockets formed between successive blades so that an even flow of material may be discharged from the hopper by the air pressure through an outlet port.
  • This device helps to ensure an even supply of mix to a spray head connected to the outlet port and thus prevents surging.
  • FIG. 1 is a perspective view of an embodiment of mixing apparatus in accordance with the invention.
  • FIG. 2 is an exploded view corresponding to FIG. 1 but viewed from the other side of the apparatus;
  • FIG. 3 is a detail view of the feed scrolls or worms
  • FIG. 4 is a detail view of the hopper for the fibres.
  • FIG. 5 is a detail view of the rotary blowing device.
  • the apparatus comprises essentially a double hopper unit 2,4 to receive cement in one side 2 and aggregate in the other side 4 and a hopper 6 for fibres which are to be mixed into the cement/aggregate mix.
  • the hopper 2 for the cement opens into an outlet casing 8 through which a rotatable feed screw or worm 10 (see FIG. 3) extends.
  • the feed screw is mounted in a tube 12 and in use is rotated so that cement is fed from the casing 8 along the tube to an outlet 14 which communicates with an inlet hole in a tubular casing 16 of a main blend scroll or worm l8 driven by a main motor 19.
  • the proportions of the cement and aggregate may be varied as desired in a number of different ways.
  • the relative speeds of the two feed screws 10 and 22 may be altered by adjustment of gearing 25 in the drive for the screws.
  • each of the screws may be replaced bodily with a screw having different dimensions, different flights or a different pitch. In this way a very easy and yet precise control of the proportions of the mix can be achieved.
  • the fibre reinforcement is fed to the hopper 6 from a tray 26 the slope of which may be varied by adjusting the position of the supports 28 for one end of the tray on uprights 30.
  • the tray is vibrated by means of a standard air vibrating unit 32 attached to the closed end of the tray so as to achieve an even feed of the fibres to the hopper.
  • fibre reinforcement may be of glass, plastic or metal and can be of any desired shape.
  • the fibres may be of mild steel 1 inch long and 0.01 inch in diameter.
  • the hopper 6 contains a screen 34 and is provided with tubes 36 extending along each side thereof which engage over slide bars 38 connected to the frame of the machine (see FIG. 4).
  • the hopper is arranged to be reciprocated over the inlet 40 of trunking 42 communicating with the casing 16 of the main feed screw downstream of the inlet 14.
  • the reciprocation is achieved through a crank rod 44 pivotally attached to one end of the hopper 6 and mounted eccentrically at 46 to a driven crank wheel 48.
  • the hopper and its screen are reciprocated or vibrated on the slide bars, over the inlet to the casing of the main feed screw and this action has been found to achieve an even supply of fibres through the mesh 34 of the hopper on to the main blend screw.
  • pitch or frequency of the reciprocation may be varied to suit different types and sizes of fibre as may the fineness and shape of the mesh of the screen 34. These variables also control the feed of fibres.
  • the height of the pile of fibres in the hopper is controlled automatically new fibres spilling over from the end of the tray to replace fibres which have been fed to the blend screw.
  • the feed of fibres from the hopper is also controlled by the height of the pile of fibres on the mesh.
  • the drive for the hopper reciprocation is provided with a manually operable clutch of standard type the control handle 50 of which (see FIG. 1) can be operated either to start or stop the supply of fibres as required independently of the supply of cement and aggregate.
  • the blend screw 18 which receives the fibres after it has received the concrete and aggregate acts to blend these ingredients together and to move them bodily along the casing 16 so that the mix emerges properly blended from the outlet 24.
  • the rotary unit has a venting hopper 56 (see FIG. 5) in which a horizontally mounted driven rotor 58 rotates, the blades 60 of the rotor defining a number of pockets which receive the mix from the inlet casing 52 and which transfers it to an outlet 62 at the bottom of the chamber.
  • the rotor acts to ensure that an even flow of material reaches the outlet chamber 62 which is connected by a hose 64 to a supply of air under pressure and which communicates with an outlet hose 66 through which, in use, the mix is blown to a nozzle (not shown) where the mix is supplied with water and sprayed on to a surface to be concreted.
  • the mixer of this invention can be used to mix or blend any ingredients wet or dry and for example can be used to mix additives into material, one use would be the mixing of granular or powdered additives into cement.
  • a wet mix may be supplied and in this case the mixer may be fitted with a water metering device 70 which controls a supply of water to several injection ports 72 in the casing 16 of the blend screw.
  • the water added in this way is blended with the cement aggregate and fibres to produce a wet concrete at the outlet 24 of the blend screw.
  • the unit 54 is not used and concrete is directed away from the inlet casing 52 thereof either by inserting a deflector plate (not shown) or by unbolting the unit.
  • a mixing machine particularly adapted for use in the production of a fibrous mix said machine compris- 1 a first hopper for a first feedstock,
  • a first feed screw disposed in fixed relation to said first hopper, said first feed screw being adapted to receive the first feedstock discharge fromsaid first hopper,
  • a blending scroll having first and second charging ports, said blending scroll being positioned relative to said first feed screw to receive through said first charging port the first feedstock discharge metered from said first feed screw, and
  • a fiber hopper having a screen fixed at the outlet thereof onto which fibers may be loaded, said hopper being positioned to discharge said fibers directly into said second charging port provided for said blending scroll, and said hopper being reciprocable relative to said second charging port for discharging fibers within said fiber hopper into said second charging port.
  • a second feed screw disposed in fixed relation to said second hopper, said second feed screw being adapted to receive the second feedstock discharge from said second hopper, and said second feed screw being positioned to meter the second feedstock into said firt charging port of said blending scroll.
  • a mixing machine as set forth in claim 5 including a delivery tray adapted to receive a supply of fibers,
  • said delivery tray being cooperatively connected with said hopper to maintain the level of fibers in the hopper substantially constant during use of said machine
  • a mixing machine as set forth in claim 1 including a rotary blower unit fixed relative to said blending scroll for receiving the fibrous mix discharged from said blending scroll, and
  • an air pressure port connected with said rotary blower unit, said air pressure port being adapted to receive pressurized air for ejecting the fibrous mix from the rotary blowing unit into a discharge hose without surging.

Abstract

A mixing machine comprising a feed for at least one of the materials to be mixed which incorporates a rotatable scroll or worm and a hopper for a second material to be mixed, the discharge outlets of the or each of the feed scrolls or worms and of the hopper, communicating with a common rotating blending scroll or worm the hopper having a mesh or screen on which fibres can be loaded, either the hopper being reciprocable across the outlet to the feed scroll or the hopper and screen being relatively reciprocal.

Description

May 27, 1975 United States Patent Harris et al.
[56] References Cited UNITED STATES PATENTS APPARATUS FOR PREPARING AND DISPENSING MIXTURES OF CONCRETE AND FIBRES Pence 'Carswell e X a S 72258 04555 99999 11111 66222 11 .75 3 6335 85773 58826 8257 00 2222 Primary ExaminerRobert W. Jenkins Attorney, Agent or Firm-Wood, Herron & Evans ABSTRACT A mixing machine comprising a feed for at least one of the materials to be mixed which incorporates a ro- [73] Assignee: Caledonian Mining Company Limited, Carlton-on-Trent, Newark, Nottinghamshire, England July 18, 1973 Appl. No.: 380,193
[22] Filed:
tatable scroll or worm and a hopper for a second material to be mixed, the discharge outlets of the or each of the feed scrolls or worms and of the hopper, com- [30] Foreign Application Priority Data municating with a common rotating blending scroll or worm the hopper having a mesh or screen on which July 22, 1972 United Kingdom... Sept. 26. l972 United Kingdom.... Sept. 29, 1972 United Kingdom....
fibres can be loaded, either the hopper being reciprocable across the outlet to the feed scroll or the hopper and screen being relatively reciprocal.
Dec. 5, 1972 United Kingdom.... Dec. 5, 1972 United Kingdom......,......,.
7 R 1 7 m64 7 5 33 2 O xnisi .904 a a 6 7 N ,6% H l w "5 2 "16 "W "W 9 W a nm m m "mr ".a uuez US/D L C 9 d5 Ld UmF 1.11. 218 555 PATENTEU MAY 2 7 I975 SHEET PATENTEU M27 1975 APPARATUS FOR PREPARING AND DISPENSING MIXTURES OF CONCRETE AND FIBRES This invention relates to concrete mixers and in particular to mixers for producing a mix for fibrous concrete i.e. concrete strengthened and improved by the addition of fibers.
Certain problems arise during the production of such a fibrous concrete mix as the fibres have to be evenly distributed throughout the mix in order for the maximum benefits to the concrete to be achieved. In particular the feed of the fibres into the mix has to be such that the fibres are not formed into balls rather than being evenly distributed throughout the mix.
It is therefore the general object of this invention to provide a mixing machine which overcomes the above problems and which produces a mix, in any desired proportions, of cement, aggregate and fibres.
A mixing machine in accordance with the invention comprises a feed for cement and aggregate incorporating a rotatable scroll or worm (preferably two, one for the cement and one for the aggregate) and a hopper for fibres, the discharge outlets of the or each of the feed scrolls or worms and of the fibre hopper communicating with a common rotatable blending scroll or worm, the fibre hopper having a mesh or screen on which fibres can be loaded either the hopper being reciprocal across the outlet to the feed scroll, or the hopper and screen having a relative reciprocation or vibration.
The use of a fibre hopper of this nature ensures that the fibres are fed evenly to the blending scroll and the danger of fibres of metal being attracted together by self-magnetism and being formed into balls is substantially reduced.
Conveniently the hopper is reciprocated over an outlet to the blending scroll, by a crank pivotally mounted to the hopper and to an eccentric point on a drive wheel.
The equipment is suitable for any form of fibre and the mesh of the hopper can be changed so that the size and shape of mesh is appropriate to the particular type of fibre and to the feed desired. Equally the feed of fibres may be varied by varying the stroke or frequency of reciprocation of the hopper, by varying the level of fibres maintained in the hopper during operation, or by varying the size of the outlet from the hopper.
Preferably fibres are fed to the hopper through a delivery tray and the tray may be vibrated to assist even flow of fibres. If the delivery tray is disposed over the mouth of the hopper then the level of fibres contained therein can be maintained substantially constant as the hopper reciprocates beneath the feed end of the tray.
The hopper may be mounted on wheels or on slides for reciprocal movement across its outlet port.
The fibres may be made of metal, plastics, glass or any other convenient material and may be made of any desired shape or configuration to suit the desired ultimate concrete mix.
The relative proportions of the ingredients of the mix may be varied by varying the speed of rotation of each feed scroll or worm or by adjusting the pitch or size of the flights of the feed scroll or worms.
The apparatus may also include a rotary blowing unit into which the common blending scroll or worm discharges and which comprises a venting hopper connected to a source of pressurised air and in which a rotor formed with a number of blades rotates. The mix on entering the hopper is rotated in the pockets formed between successive blades so that an even flow of material may be discharged from the hopper by the air pressure through an outlet port. This device helps to ensure an even supply of mix to a spray head connected to the outlet port and thus prevents surging.
The invention will now be further described by way of example with reference to the accompanying drawings in which:
FIG. 1 is a perspective view of an embodiment of mixing apparatus in accordance with the invention;
FIG. 2 is an exploded view corresponding to FIG. 1 but viewed from the other side of the apparatus;
FIG. 3 is a detail view of the feed scrolls or worms;
FIG. 4 is a detail view of the hopper for the fibres; and
FIG. 5 is a detail view of the rotary blowing device.
Referring to FIGS. 1 and 2 the apparatus comprises essentially a double hopper unit 2,4 to receive cement in one side 2 and aggregate in the other side 4 and a hopper 6 for fibres which are to be mixed into the cement/aggregate mix.
The hopper 2 for the cement opens into an outlet casing 8 through which a rotatable feed screw or worm 10 (see FIG. 3) extends. The feed screw is mounted in a tube 12 and in use is rotated so that cement is fed from the casing 8 along the tube to an outlet 14 which communicates with an inlet hole in a tubular casing 16 of a main blend scroll or worm l8 driven by a main motor 19.
Equally the sand (or other aggregate) hopper 4 communicates through a casing 20 with a feed screw 22 which on rotation acts to move the aggregate along a feed tube, similar to the tube 12, to the tube 14 so that a mix of cement and aggregate enters the casing for the main blend scroll or worm 18 this worm being rotatable to move the mix along the tubular casing 16 to an outlet 24.
The proportions of the cement and aggregate may be varied as desired in a number of different ways. For example the relative speeds of the two feed screws 10 and 22 may be altered by adjustment of gearing 25 in the drive for the screws. Alternatively each of the screws may be replaced bodily with a screw having different dimensions, different flights or a different pitch. In this way a very easy and yet precise control of the proportions of the mix can be achieved.
The fibre reinforcement is fed to the hopper 6 from a tray 26 the slope of which may be varied by adjusting the position of the supports 28 for one end of the tray on uprights 30. The tray is vibrated by means of a standard air vibrating unit 32 attached to the closed end of the tray so as to achieve an even feed of the fibres to the hopper.
Any form of fibre reinforcement may be used for example the reinforcement may be of glass, plastic or metal and can be of any desired shape. As an example the fibres may be of mild steel 1 inch long and 0.01 inch in diameter.
The hopper 6 contains a screen 34 and is provided with tubes 36 extending along each side thereof which engage over slide bars 38 connected to the frame of the machine (see FIG. 4). The hopper is arranged to be reciprocated over the inlet 40 of trunking 42 communicating with the casing 16 of the main feed screw downstream of the inlet 14. The reciprocation is achieved through a crank rod 44 pivotally attached to one end of the hopper 6 and mounted eccentrically at 46 to a driven crank wheel 48. Thus in use the hopper and its screen are reciprocated or vibrated on the slide bars, over the inlet to the casing of the main feed screw and this action has been found to achieve an even supply of fibres through the mesh 34 of the hopper on to the main blend screw.
It will be appreciated that the pitch or frequency of the reciprocation may be varied to suit different types and sizes of fibre as may the fineness and shape of the mesh of the screen 34. These variables also control the feed of fibres.
As the hopper is in fact reciprocated longitudinally relatively to the feed tray 26 the height of the pile of fibres in the hopper is controlled automatically new fibres spilling over from the end of the tray to replace fibres which have been fed to the blend screw. The feed of fibres from the hopper is also controlled by the height of the pile of fibres on the mesh.
The drive for the hopper reciprocation is provided with a manually operable clutch of standard type the control handle 50 of which (see FIG. 1) can be operated either to start or stop the supply of fibres as required independently of the supply of cement and aggregate.
The blend screw 18 which receives the fibres after it has received the concrete and aggregate acts to blend these ingredients together and to move them bodily along the casing 16 so that the mix emerges properly blended from the outlet 24.
From the outlet the mix falls through the inlet casing 52 of a rotary blowing unit generally indicated at 54.
The rotary unit has a venting hopper 56 (see FIG. 5) in which a horizontally mounted driven rotor 58 rotates, the blades 60 of the rotor defining a number of pockets which receive the mix from the inlet casing 52 and which transfers it to an outlet 62 at the bottom of the chamber. The rotor acts to ensure that an even flow of material reaches the outlet chamber 62 which is connected by a hose 64 to a supply of air under pressure and which communicates with an outlet hose 66 through which, in use, the mix is blown to a nozzle (not shown) where the mix is supplied with water and sprayed on to a surface to be concreted.
It will of course be appreciated that the mixer of this invention can be used to mix or blend any ingredients wet or dry and for example can be used to mix additives into material, one use would be the mixing of granular or powdered additives into cement.
Rather than supplying a dry mix to a spray head where it is mixed with water, a wet mix may be supplied and in this case the mixer may be fitted with a water metering device 70 which controls a supply of water to several injection ports 72 in the casing 16 of the blend screw. The water added in this way is blended with the cement aggregate and fibres to produce a wet concrete at the outlet 24 of the blend screw. When wet concrete is to be produced the unit 54 is not used and concrete is directed away from the inlet casing 52 thereof either by inserting a deflector plate (not shown) or by unbolting the unit.
We claim:
1. A mixing machine particularly adapted for use in the production of a fibrous mix, said machine compris- 1 a first hopper for a first feedstock,
a first feed screw disposed in fixed relation to said first hopper, said first feed screw being adapted to receive the first feedstock discharge fromsaid first hopper,
a blending scroll having first and second charging ports, said blending scroll being positioned relative to said first feed screw to receive through said first charging port the first feedstock discharge metered from said first feed screw, and
a fiber hopper having a screen fixed at the outlet thereof onto which fibers may be loaded, said hopper being positioned to discharge said fibers directly into said second charging port provided for said blending scroll, and said hopper being reciprocable relative to said second charging port for discharging fibers within said fiber hopper into said second charging port.
2. A mixing machine as set forth in claim 1, said machine further comprising,
a second hopper for a second feedstock, and
a second feed screw disposed in fixed relation to said second hopper, said second feed screw being adapted to receive the second feedstock discharge from said second hopper, and said second feed screw being positioned to meter the second feedstock into said firt charging port of said blending scroll.
3. A mixing machine as set forth in claim 2 wherein the rotational speeds of said two feed screws are adjustable relative one to the other, and are adjustable relative to said blending scroll.
4. A mixing machine as set forth in claim 1, said machine further including drive means interconnected with said fiber hopper for reciprocating said fiber hopper.
5. A mixing machine as set forth in claim 1, said second charging port being located downstream of said blending scroll relative to said first charging port.
6. A mixing machine as set forth in claim 5 including a delivery tray adapted to receive a supply of fibers,
.said delivery tray being cooperatively connected with said hopper to maintain the level of fibers in the hopper substantially constant during use of said machine, and
vibrator means secured to said delivery tray for feeding the fibers off said tray into said hopper.
7. A mixing machine as set forth in claim 1 including a rotary blower unit fixed relative to said blending scroll for receiving the fibrous mix discharged from said blending scroll, and
an air pressure port connected with said rotary blower unit, said air pressure port being adapted to receive pressurized air for ejecting the fibrous mix from the rotary blowing unit into a discharge hose without surging.

Claims (7)

1. A mixing machine particularly adapted for use in the production of a fibrous mix, said machine comprising, a first hopper for a first feedstock, a first feed screw disposed in fixed relation to said first hopper, said first feed screw being adapted to receive the first feedstock discharge from said first hopper, a blending scroll having first and second charging ports, said blending scroll being positioned relative to said first feed screw to receive through said first charging port the first feedstock discharge metered from said first feed screw, and a fiber hopper having a screen fixed at the outlet thereof onto which fibers may be loaded, said hopper being positioned to discharge said fibers directly into said second charging port provided for said blending scroll, and said hopper being reciprocable relative to said secOnd charging port for discharging fibers within said fiber hopper into said second charging port.
2. A mixing machine as set forth in claim 1, said machine further comprising, a second hopper for a second feedstock, and a second feed screw disposed in fixed relation to said second hopper, said second feed screw being adapted to receive the second feedstock discharge from said second hopper, and said second feed screw being positioned to meter the second feedstock into said firt charging port of said blending scroll.
3. A mixing machine as set forth in claim 2 wherein the rotational speeds of said two feed screws are adjustable relative one to the other, and are adjustable relative to said blending scroll.
4. A mixing machine as set forth in claim 1, said machine further including drive means interconnected with said fiber hopper for reciprocating said fiber hopper.
5. A mixing machine as set forth in claim 1, said second charging port being located downstream of said blending scroll relative to said first charging port.
6. A mixing machine as set forth in claim 5 including a delivery tray adapted to receive a supply of fibers, said delivery tray being cooperatively connected with said hopper to maintain the level of fibers in the hopper substantially constant during use of said machine, and vibrator means secured to said delivery tray for feeding the fibers off said tray into said hopper.
7. A mixing machine as set forth in claim 1 including a rotary blower unit fixed relative to said blending scroll for receiving the fibrous mix discharged from said blending scroll, and an air pressure port connected with said rotary blower unit, said air pressure port being adapted to receive pressurized air for ejecting the fibrous mix from the rotary blowing unit into a discharge hose without surging.
US380193A 1972-07-22 1973-07-18 Apparatus for preparing and dispensing mixtures of concrete and fibres Expired - Lifetime US3885774A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB3439172A GB1407035A (en) 1972-07-22 1972-07-22 Apparatus for preparing and dispensing mixtures of concrete and fibres
GB4436972 1972-09-26
GB4500372 1972-09-29
GB5615172 1972-12-05
GB5615272 1972-12-05

Publications (1)

Publication Number Publication Date
US3885774A true US3885774A (en) 1975-05-27

Family

ID=27516325

Family Applications (1)

Application Number Title Priority Date Filing Date
US380193A Expired - Lifetime US3885774A (en) 1972-07-22 1973-07-18 Apparatus for preparing and dispensing mixtures of concrete and fibres

Country Status (8)

Country Link
US (1) US3885774A (en)
JP (1) JPS4992655A (en)
CA (1) CA987299A (en)
DE (1) DE2337129C3 (en)
FR (1) FR2194151A5 (en)
GB (1) GB1407035A (en)
IN (1) IN139326B (en)
IT (1) IT992647B (en)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321319A1 (en) * 1975-08-20 1977-03-18 Banbury Buildings Holdings Ltd APPARATUS AND METHOD FOR MIXING PARTICULAR CONSTITUENTS
US4039169A (en) * 1976-02-02 1977-08-02 Carver Foundry Products Continuous sand muller
US4304493A (en) * 1980-02-12 1981-12-08 Frankie Donald M Sand mixer
US4548507A (en) * 1982-10-05 1985-10-22 Mathis System-Technik Gmbh Mixing apparatus for the production of mixtures
US4669886A (en) * 1984-03-13 1987-06-02 B.M.I. B.V. Apparatus for preparing a mixture
US4778276A (en) * 1985-09-13 1988-10-18 Heidelberger Zement Aktiengesellschaft Device and process for continuous supply of hydraulically setting compound
US4955721A (en) * 1987-09-28 1990-09-11 Clark Lloyd T Apparatus for applying a sulphur-based structural material to paved surfaces
US4958935A (en) * 1988-09-29 1990-09-25 Axelsson Bygg S Method of breaking up bundles of adherent hard fibers and an oscillating screen
US5354127A (en) * 1990-04-10 1994-10-11 William Del Zotto Segmented mixing auger
US5967655A (en) * 1996-04-22 1999-10-19 Hills; A. Wayne System for mixing cementing material and mineral aggregate
US6183123B1 (en) * 1998-10-07 2001-02-06 K-Five Construction Corporation Fiber additive concrete manufacturing method
US6554465B2 (en) 2001-01-29 2003-04-29 Robert Cruso Concrete admixture packaging and batch feed system
GB2390089A (en) * 1999-11-29 2003-12-31 Innovation Holdings A process for manufacturing concrete on a continuous basis
US20040095841A1 (en) * 2002-11-20 2004-05-20 Mark Preisser Portable variable speed volumetric feed hopper
US6971784B1 (en) * 2002-09-06 2005-12-06 Bracegirdle Paul E Process for producing fiber reinforced hot-mix asphaltic and cementitous structural materials with fiber pellets produced from carpet waste
US7563017B1 (en) * 2002-09-06 2009-07-21 Bracegirdle Paul E Process for mixing congealable materials such as cement, asphalt, and glue with fibers from waste carpet
US20100139527A1 (en) * 2006-11-21 2010-06-10 Carlos Javier Fernandez-Garcia Premixing and dry fibration process
US20100238758A1 (en) * 2007-06-13 2010-09-23 Nurock Limited Mixing apparatus
US9132952B1 (en) 2013-01-09 2015-09-15 VM Fiber Feeders, Inc. Mobile fiber dispenser
US9266662B1 (en) 2012-09-11 2016-02-23 Vm Fiber Feeders Inc. Bulk fiber dispenser
WO2018027095A1 (en) * 2016-08-05 2018-02-08 United States Gypsum Company A method for producing fiber reinforced cementitious slurry using a multi-stage continuous mixer
USD816739S1 (en) * 2015-11-25 2018-05-01 Disa Industries A/S Sandmixer
CN112027624A (en) * 2020-09-01 2020-12-04 林喜双 Loading attachment convenient to building stirring station uses
US10981294B2 (en) 2016-08-05 2021-04-20 United States Gypsum Company Headbox and forming station for fiber-reinforced cementitious panel production
CN113230967A (en) * 2021-07-14 2021-08-10 潍坊新普食品科技有限公司 Spices mixing stirring device
US11173629B2 (en) 2016-08-05 2021-11-16 United States Gypsum Company Continuous mixer and method of mixing reinforcing fibers with cementitious materials
US11224990B2 (en) 2016-08-05 2022-01-18 United States Gypsum Company Continuous methods of making fiber reinforced concrete panels

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE383910B (en) * 1974-08-02 1976-04-05 Sandell Bertil WAY TO MANUFACTURE CONCRETE CONSTRUCTIONS
GB1518144A (en) * 1975-07-04 1978-07-19 Pilkington Brothers Ltd Glass fibre reinforced cement composite materials
SE419308B (en) * 1975-08-11 1981-07-27 Bertil Raymond Sandell SET TO PREPARE FIBERS FOR MIXING IN A CONCRETE MASS AND DEVICE IMPLEMENTATION
DE2812779A1 (en) * 1978-03-23 1979-09-27 Martin Theodor Melchior MIXING DEVICE FOR FINE GRAIN MATERIALS
DE3104751C2 (en) * 1981-02-11 1986-10-30 Mathis System-Technik GmbH, 7844 Neuenburg Process for preparing setting building material mixtures
US4855960A (en) * 1982-04-30 1989-08-08 Janssen Wilhelmus G E Process and apparatus for the preparation of mortars
FI75518C (en) * 1982-04-30 1988-07-11 Janssen Wilhelmus Gerardus E ANORDINATION OF FRAMSTAELLNING AV MURBRUK.
SE449704B (en) * 1982-11-11 1987-05-18 Armerad Betong Ab PROCEDURE TO REMOVE ENVIRONMENTALLY HAZARDOUS MATERIAL
DE3309137C1 (en) * 1983-03-15 1984-09-06 Zyklos Maschinenbau Gmbh, 7141 Schwieberdingen Steel-needle disentangling and proportioning device for reinforcement material for steel-fibre concrete
SE447080B (en) * 1984-06-15 1986-10-27 Vertex Int Ab SET AND DEVICE FOR SUPPLY OF FIBERS TO A MIXING DEVICE
GB2206059B (en) * 1987-02-13 1991-06-19 Worcester Limited Apparatus for producing aerated cementitious material
JPH03121815A (en) * 1989-10-04 1991-05-23 K F C:Kk Kneading-force feeding apparatus for mortar or the like
DK164265C (en) * 1990-03-28 1992-11-02 Skako As METHOD OF DOSING FIBERS
IT1267072B1 (en) * 1993-06-07 1997-01-24 Cres Co Snc Di Crestani Preto FEEDING MIXER DEVICE FOR BREEDING
AT504803B1 (en) * 2004-07-14 2008-11-15 Johann Dipl Ing Keil APPENDIX FOR THE PRODUCTION AND PROCESSING OF WET-SPRAYING MIXTURE
ATE530721T1 (en) 2008-12-29 2011-11-15 Ct Dopravniho Vyzkumu V V I CAPSULES MADE OF INDIVIDUAL WOUND FIBERS WITH A COVER OF ADHESIVE, METHOD OF THEIR PRODUCTION AND METHOD OF PRODUCING REINFORCED CONCRETE USING THESE CAPSULES
EP2206692B1 (en) 2008-12-29 2013-12-11 Centrum dopravniho vyzkumu, v.v.i. Capsules for concrete from a fiber and ice and method of their production
CN108487640A (en) * 2018-02-27 2018-09-04 谢燕玲 A kind of concrete sprayer
DE102020103139A1 (en) 2020-02-07 2021-08-12 Wolfgang Kindler Dosing system
CN111805738B (en) * 2020-07-17 2021-07-20 诸暨华匠工程设计咨询有限公司 Fiber cement production pulping equipment
CN111939782B (en) * 2020-08-06 2022-03-01 湖南省呈兴纸品有限公司 Printing ink apparatus for producing
CN112497501B (en) * 2020-11-23 2022-01-11 广西泽涛建材科技有限公司 Method for preparing high-strength concrete by using waste fibers

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US858017A (en) * 1907-01-18 1907-06-25 George M Pence Machine for mixing concrete.
US2285765A (en) * 1941-04-17 1942-06-09 Frank L Carswell Aggregate mixing machine
US2587531A (en) * 1951-02-05 1952-02-26 Conveyor Company Inc Method of and apparatus for proportioning the constituents of materials
US2727733A (en) * 1953-08-12 1955-12-20 Carswell Frank Leon Batch feeding and mixing apparatus
US2863651A (en) * 1957-10-31 1958-12-09 Robert J Mcbride Solids proportioning and mixing system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US858017A (en) * 1907-01-18 1907-06-25 George M Pence Machine for mixing concrete.
US2285765A (en) * 1941-04-17 1942-06-09 Frank L Carswell Aggregate mixing machine
US2587531A (en) * 1951-02-05 1952-02-26 Conveyor Company Inc Method of and apparatus for proportioning the constituents of materials
US2727733A (en) * 1953-08-12 1955-12-20 Carswell Frank Leon Batch feeding and mixing apparatus
US2863651A (en) * 1957-10-31 1958-12-09 Robert J Mcbride Solids proportioning and mixing system

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321319A1 (en) * 1975-08-20 1977-03-18 Banbury Buildings Holdings Ltd APPARATUS AND METHOD FOR MIXING PARTICULAR CONSTITUENTS
US4039169A (en) * 1976-02-02 1977-08-02 Carver Foundry Products Continuous sand muller
US4304493A (en) * 1980-02-12 1981-12-08 Frankie Donald M Sand mixer
US4548507A (en) * 1982-10-05 1985-10-22 Mathis System-Technik Gmbh Mixing apparatus for the production of mixtures
US4669886A (en) * 1984-03-13 1987-06-02 B.M.I. B.V. Apparatus for preparing a mixture
US4778276A (en) * 1985-09-13 1988-10-18 Heidelberger Zement Aktiengesellschaft Device and process for continuous supply of hydraulically setting compound
US4955721A (en) * 1987-09-28 1990-09-11 Clark Lloyd T Apparatus for applying a sulphur-based structural material to paved surfaces
US4958935A (en) * 1988-09-29 1990-09-25 Axelsson Bygg S Method of breaking up bundles of adherent hard fibers and an oscillating screen
US5354127A (en) * 1990-04-10 1994-10-11 William Del Zotto Segmented mixing auger
US5967655A (en) * 1996-04-22 1999-10-19 Hills; A. Wayne System for mixing cementing material and mineral aggregate
US6183123B1 (en) * 1998-10-07 2001-02-06 K-Five Construction Corporation Fiber additive concrete manufacturing method
WO2001026872A1 (en) * 1998-10-07 2001-04-19 K-Five Construction Corporation Fiber additive concrete manufacturing method and system and fiber additive shipping and handling module
GB2390089A (en) * 1999-11-29 2003-12-31 Innovation Holdings A process for manufacturing concrete on a continuous basis
US6554465B2 (en) 2001-01-29 2003-04-29 Robert Cruso Concrete admixture packaging and batch feed system
US6971784B1 (en) * 2002-09-06 2005-12-06 Bracegirdle Paul E Process for producing fiber reinforced hot-mix asphaltic and cementitous structural materials with fiber pellets produced from carpet waste
US7563017B1 (en) * 2002-09-06 2009-07-21 Bracegirdle Paul E Process for mixing congealable materials such as cement, asphalt, and glue with fibers from waste carpet
US20040095841A1 (en) * 2002-11-20 2004-05-20 Mark Preisser Portable variable speed volumetric feed hopper
US6817747B2 (en) * 2002-11-20 2004-11-16 Mark Preisser Portable variable speed volumetric feed hopper
US20100139527A1 (en) * 2006-11-21 2010-06-10 Carlos Javier Fernandez-Garcia Premixing and dry fibration process
US9505656B2 (en) * 2006-11-21 2016-11-29 Carlos Javier Fernandez-Garcia Premixing and dry fibration process
US20100238758A1 (en) * 2007-06-13 2010-09-23 Nurock Limited Mixing apparatus
US9266662B1 (en) 2012-09-11 2016-02-23 Vm Fiber Feeders Inc. Bulk fiber dispenser
US9132952B1 (en) 2013-01-09 2015-09-15 VM Fiber Feeders, Inc. Mobile fiber dispenser
USD816739S1 (en) * 2015-11-25 2018-05-01 Disa Industries A/S Sandmixer
WO2018027095A1 (en) * 2016-08-05 2018-02-08 United States Gypsum Company A method for producing fiber reinforced cementitious slurry using a multi-stage continuous mixer
US10646837B2 (en) 2016-08-05 2020-05-12 United States Gypsum Company Method for producing fiber reinforced cementitious slurry using a multi-state continuous mixer
US10981294B2 (en) 2016-08-05 2021-04-20 United States Gypsum Company Headbox and forming station for fiber-reinforced cementitious panel production
US11173629B2 (en) 2016-08-05 2021-11-16 United States Gypsum Company Continuous mixer and method of mixing reinforcing fibers with cementitious materials
US11224990B2 (en) 2016-08-05 2022-01-18 United States Gypsum Company Continuous methods of making fiber reinforced concrete panels
CN112027624A (en) * 2020-09-01 2020-12-04 林喜双 Loading attachment convenient to building stirring station uses
CN113230967A (en) * 2021-07-14 2021-08-10 潍坊新普食品科技有限公司 Spices mixing stirring device

Also Published As

Publication number Publication date
DE2337129C3 (en) 1979-09-27
DE2337129B2 (en) 1979-02-01
JPS4992655A (en) 1974-09-04
AU5805773A (en) 1975-01-16
DE2337129A1 (en) 1974-01-31
CA987299A (en) 1976-04-13
FR2194151A5 (en) 1974-02-22
GB1407035A (en) 1975-09-24
IT992647B (en) 1975-09-30
IN139326B (en) 1976-06-05

Similar Documents

Publication Publication Date Title
US3885774A (en) Apparatus for preparing and dispensing mixtures of concrete and fibres
US4205919A (en) Mixer for and method for mixing particulate constituents
US3203370A (en) Dough mixing and kneading machine
US5795060A (en) Method and apparatus for continuous production of colloidally-mixed cement slurries and foamed cement grouts
US4275033A (en) Apparatus for producing a reaction mixture containing fillers from at least two components which are capable of flowing
FI62818B (en) SAETT ATT FOERBEREDA FIBERKNIPPEN FOER RIKTAD INBLANDNING I SPUTBETONG OCH ANORDNING FOER GENOMFOERANDE AV SAETTET
US3917236A (en) Concrete mixing plant
EP0218864B1 (en) Device and method for continuously making a hydraulically setting mass
JPH0341818Y2 (en)
JPS5811267A (en) Apparatus for mixing and injecting wet concrete
US3583680A (en) Mixing and discharging apparatus for fillers and binders
CN110154237B (en) Concrete mixing equipment
US3306589A (en) Concrete mixing machine
US2551984A (en) Mixer
PL167567B1 (en) Apparatus for preparing pumpable mortar mixs, suitable for use at a building site
EP0017015A1 (en) Mixing apparatus
US4798471A (en) Apparatus for making molding sand
US20070104020A1 (en) Concrete delivery truck
US3506201A (en) Trough mixer having a dosing arrangement for mixing fibrous materials
JPH04229126A (en) Kneading machine for food
GB2159722A (en) Mixing machines
KR101759387B1 (en) Concrete mixer and ready-mixed concrete producing apparatus using the same
CN113500700A (en) Cement batcher
US4133490A (en) Machine for making cellulose insulation
US3887168A (en) Mixing apparatus