CN104818348A - Classified filtering pre-liming tank - Google Patents
Classified filtering pre-liming tank Download PDFInfo
- Publication number
- CN104818348A CN104818348A CN201510178699.5A CN201510178699A CN104818348A CN 104818348 A CN104818348 A CN 104818348A CN 201510178699 A CN201510178699 A CN 201510178699A CN 104818348 A CN104818348 A CN 104818348A
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- China
- Prior art keywords
- screen frame
- filtering
- staving
- channel
- filtration
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- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B20/00—Purification of sugar juices
- C13B20/02—Purification of sugar juices using alkaline earth metal compounds
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B20/00—Purification of sugar juices
- C13B20/16—Purification of sugar juices by physical means, e.g. osmosis or filtration
Abstract
The invention discloses a classified filtering pre-liming tank. The classified filtering pre-liming tank comprises a tank body, a mixer, a cane juice inlet, a lime milk inlet and a discharging port, wherein the mixer, the can juice inlet, the lime milk inlet and the discharging port are arranged on the tank body. A pre-limed juice solid-liquid separating device is arranged under the tank body and composed of 2-4 layers of filtering mechanisms; every layer of filtering mechanism is composed of a filter mesh frame and a filtering channel; the filtering channel of the top layer is connected with the discharging port under the tank body; every filter mesh frame is vertically arranged inside the corresponding filtering channel, the filtering channel at the inner bottom of the filter mesh frame is provided with a separated liquid outlet; the separated liquid outlets of the filtering channels of the neighboring two layers are communicated; the filter mesh frames can rotate freely around a support shaft. The classified filtering pre-liming tank has the advantages of being low in energy consumption, simple in structure and convenient to operate.
Description
Technical field
The present invention relates to a kind of sugar mill, refer to a kind of classified filtering preliming tank especially.
Background technology
Sugaring process generally comprises the operations such as extraction of the juice, peace and quiet, evaporation, crystallization, purging, drying, and wherein peace and quiet flow process is pre-ash-heating-main ash-mono-'s time carbonation-once filter.Pre-ash is an important step in peace and quiet operation, and the quality of pre-grey quality has a significant impact subsequent handling.Preliming tank is in pre-grey process, for adding a small amount of milk of lime or adding backflow juice process mixing juice or the equipment of diffusion juice again.
In pre-grey process, together, most of pre-grey equipment can not process flocculation material a large amount of impurity flocculation material.Flocculation material is followed after predefecation juice enters main grey equipment together and is again dissolved, and increases main ash process burden so on the one hand, has also had influence on the concentration of syrup on the other hand.
Some contrivers also attempt handling it to improve syrup concentration to throw out before main ash process, such as:
Predefecation juice tripping device in [title] a kind of carbonatation process production technique, [patent No.] CN201320165993.9, [applying date] 2013.04.07, predefecation juice tripping device in a kind of carbonatation process production technique is disclosed, be provided with preliming tank, preliming tank is connected with the input channel of gas floatation separation device, and the two-way output channel of gas floatation separation device is connected with clear liquid storage tank, turbid slag storage tank respectively, clear liquid storage tank is connected with main ash bucket by pump, and turbid slag storage tank is arranged outward by pump.
This utility model adopts gas floatation separation device that the most of impurity flocculated in pre-ash process is separated removing in advance, realizes solid-liquid separation, effectively improves the purity of material.But described gas floatation separation device, material conveying process, have employed many places pumping plant, energy consuming ratio is more serious; Solid-liquid separation process, adopt air flotation technology, flow process is relative complex also.
Therefore, after pre-ash process terminates, flocculation material removing is necessary, but prior art can not realize solid-liquid separation easily under the prerequisite of low power consuming, is necessary to make further technological improvement.
Summary of the invention
The object of the invention is the shortcoming and defect solving prior art, a kind of classified filtering preliming tank low, structure is simple, easy to operate that consumes energy is provided.
The comprising staving and be arranged on agitator, sugarcane juice entrance, milk of lime entrance, discharge port on staving of classified filtering preliming tank of the present invention; Be provided with predefecation juice equipment for separating liquid from solid below staving, described equipment for separating liquid from solid is divided into layer 2-4 filter mechanism, and every layer of filter mechanism includes and filter screen frame, filtration channel; The superiors' filtration channel connects the discharge port below staving, and filter screen frame and be vertically arranged in filtration channel, the filtration channel of its inner bottom part is provided with discharge channel, and upper and lower two-layer filtration channel is communicated with by discharge channel; Described filtration screen frame can rotate freely around back shaft.
Further illustrate as of the present invention, the size of mesh opening of screen frame filters in the superiors and the mean sizes of predefecation juice throw out matches; The size of mesh opening that each layer filters screen frame from top to bottom successively diminishes with the ratio of 0.5-0.8; Described upper screen frame skin is provided with the scraping blade rotated with screen frame; Other one end of all filtration channels is impurity discharge outlet, and filtration channel entirety tilts to impurity discharge outlet.
The present invention realizes impurity flocculation material like this and is separated with predefecation juice, successively filtered after predefecation juice enters filtration channel, larger-size flocculation material is just directly blocked at the first layer filter mechanism, less flocculation material at second, third or the 4th layer of filter mechanism by filtering successively; Along with the rotation of filtering screen frame, by the flocculation material of filtering along outside filtration channel device for transferring, thus realize solid-liquid separation.The advantage of successively filtering is, can the flocculation material of the different size of filtering, and prevents blocking.
Predefecation juice, after filtering, effectively prevent flocculation material and follows after predefecation juice enters main grey equipment together and again dissolve, and alleviates main ash process burden, also improves the cleanliness factor of syrup on the other hand.
Further illustrate as of the present invention, the upper end back shaft of described filtration screen frame is connected with motor, is driven filter screen frame rotation by motor.
Further illustrate as of the present invention, described motor is variable-frequency motor, and the control chip of motor controls electric machine rotation according to the pressure of machine shaft, comprises force samples module and driver module; Force samples module integration pressure transmitter, is responsible for the pressure data collecting rotating shaft; Driver module calculates corresponding rotation strategy according to pressure data, then drives filtration screen frame to rotate by motor.
The effect of variable-frequency motor adjusts the speed of rotation of filtering screen frame according to predefecation juice flow velocity and solid accumulation degree, prevents flocculation material from accumulating on screen frame, obtain better filter effect.Because flow velocity is larger, predefecation juice is larger to the surging force of filtering screen frame, and due to related effect, the force value of machine shaft is larger; Secondly solid accumulation is more serious, and the force value of machine shaft is also larger; Whether as long as measure the force value of machine shaft, just can perception will accelerate to discharge flocculation material, the speed of rotation of screen frame is filtered in adjustment on this basis.
Further illustrate as of the present invention, described discharge channel is communicated with separation liquid tank; Separation liquid tank connects subsequent processing equipment by the output channel of bottom; Output channel is provided with flowrate control valve, and this control valve can by computer or Artificial Control.
Add the output that flowrate control valve can control predefecation juice flexibly, make pre-ash process and main ash below, a carbon full charge, once the operation such as to filter and more coordinate, raising syrup quality.
Further illustrate as of the present invention, described staving is divided into two-layer up and down, and separate with the conical plate that Open Side Down in the middle of staving, conical plate is provided with valve, and staving upper strata is reaction chamber, and lower floor is fluid reservoir; The bottom of staving is the taper of opening upwards, and the vertex of a cone arranges discharge port.
Above bucket body structure, makes untreated juice fully react in reaction chamber, and the pre-grey juice terminated stops in fluid reservoir, allows the solidifying wadding of impurity as much as possible together, convenient filtration.
Further illustrate as of the present invention, described agitator quantity is 2 or 4 or 6 or 8, is symmetrically arranged in the reaction chamber of staving; Described agitator is spiral stirrer.
Symmetrically spiral stirrer is set, is conducive in reaction chamber, form more disturbances and backflow, make juice react more abundant.
Further illustrate as of the present invention, described filtration screen frame adopts inside and outside Double-level Reticulated structure, and the relative displacement of Inside and outside network is not fixed, and by adjustment displacement between the two, can change the size of grid.
Classified filtering preliming tank of the present invention compared with prior art has following progress:
1, the present invention is consumed energy few, and the transmission of predefecation juice, relies on ordering about of gravity completely; Solid-liquid separation process, only need motor to drive and filter screen frame rotation, its power is also less than bubble generator of the prior art.
2, structure is simpler, and the present invention by staving, filtration screen frame, motor combination together, makes it possess solid-liquid separation function dexterously; Save bubble generator, infusion pump, solid-liquid separation tank, scrape many equipment such as slag, structure is simple, easy to maintenance.
The flow processs such as 3, easy to operate, equipment of the present invention is full-automatic operational outfit, charging-pre-ash-solid-liquid separation-output are all that equipment autonomously completes, and operator has only needed simple current check and safeguarded.
4, successively filter, can the flocculation material of the different size of filtering, and prevent blocking.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the structural representation of classified filtering preliming tank of the present invention.
Fig. 2 is the structural representation that the present invention filters screen frame.
In figure, 1-staving; 2-agitator; 3-sugarcane juice entrance; 4-milk of lime entrance; 5-discharge port; 6-motor; 7-filter screen frame; 8-scraping blade; 9-filtration channel; 10-discharge channel; 11-impurity discharge outlet.
Embodiment
See Fig. 1 and Fig. 2 classified filtering preliming tank of the present invention, the agitator 2, sugarcane juice entrance 3, milk of lime entrance 4, the discharge port 5 that comprise staving 1 and be arranged on staving; Be provided with predefecation juice equipment for separating liquid from solid below staving, described equipment for separating liquid from solid is divided into layer 2-4 filter mechanism, and every layer of filter mechanism includes and filter screen frame 7, filtration channel 9; The superiors' filtration channel 9 connects the discharge port 5 below staving, and filter screen frame 7 and be vertically arranged in filtration channel 9, the filtration channel of its inner bottom part is provided with discharge channel 10, upper and lower two-layer filtration channel 9 is communicated with by discharge channel 10; Described filtration screen frame 7 can rotate freely around back shaft.
The size of mesh opening of screen frame 7 filters in the superiors and the mean sizes of predefecation juice throw out matches; The size of mesh opening that each layer filters screen frame 7 from top to bottom successively diminishes with the ratio of 0.8; Described upper screen frame 7 skin is provided with the scraping blade 8 rotated with screen frame; Other one end of all filtration channels is impurity discharge outlet 11, and filtration channel entirety tilts to impurity discharge outlet.
The upper end back shaft filtering screen frame 7 is connected with motor, drives screen frame to rotate by motor 6.Motor 6 is variable-frequency motor, and the control chip of motor controls electric machine rotation according to the pressure of machine shaft, comprises force samples module and driver module; Force samples module integration pressure transmitter, is responsible for the pressure data collecting rotating shaft; Driver module calculates corresponding rotation strategy according to pressure data, then drives filtration screen frame 7 to rotate by motor.
Discharge channel 10 is communicated with separation liquid tank; Separation liquid tank connects subsequent processing equipment by the output channel of bottom; Output channel is provided with flowrate control valve, and this control valve can by computer or Artificial Control.
Staving 1 is divided into two-layer up and down, and separate with the conical plate that Open Side Down in the middle of staving, conical plate is provided with valve, and staving upper strata is reaction chamber, and lower floor is fluid reservoir; The bottom of staving is the taper of opening upwards, and the vertex of a cone arranges discharge port 5.Agitator 2 quantity is 2 or 4 or 6 or 8, is symmetrically arranged in the reaction chamber of staving 1; Described agitator is spiral stirrer.
Filter screen frame 7 and adopt inside and outside Double-level Reticulated structure, the relative displacement of Inside and outside network is not fixed, and by adjustment displacement between the two, can change the size of grid.
In working process, the sugarcane juice that sugarcane juice abstraction process obtains flows into the reaction chamber of staving 1 from sugarcane juice entrance 3; Milk of lime simultaneously in advance needed for ash or backflow juice enter staving 1 from milk of lime entrance 4; Drive agitator 2, make reaction solution constantly impact backflow at the reaction chamber on staving upper strata, until sufficient reacting; The sugarcane juice reacted enters the fluid reservoir of staving 1 lower floor, and after static for some time, the impurity major part flocculation in predefecation juice together.Predefecation juice falls from discharge port 5, successively filtered after entering filtration channel 9, larger-size flocculation material is just directly blocked at the first layer filter mechanism, predefecation juice then enters next filtration channel from discharge channel 10, less flocculation material at second, third or the 4th layer of filter mechanism by filtering successively; Along with the rotation of filtering screen frame 7, be discharged outside equipment after filtration channel arrives impurity discharge outlet by the flocculation material of filtering, thus realize solid-liquid separation.In solid-liquid separation process, motor 6 can also adjust the speed of rotation of filtering screen frame 7 according to the flow velocity of predefecation juice, prevents flocculation material from accumulating on screen frame.After solid-liquid separation, predefecation juice enters separation liquid tank, then enters next sugar industry operation by transfer passage.The flocculation material be separated can utilize existing bagasse recovery system to recycle.
Under ignoring the prerequisite of agitator, the main power consumption of prior art is predefecation juice transport process and foam production process, and the infusion pump power needed for transmission is generally 350W, and the floating device power needed for foam occurs is not less than 1500W, and total power is at more than 1850W.Main power consumption of the present invention is to filter screen frame rotation process and control circui process, and drive the power of motor filtering screen frame rotation only to need 100-200W, complete equipment uses 3 motors, and the power of pilot circuit is 20-40W, and total power is 320-640W.Therefore the power consumption compared to existing technology of this equipment reduces a magnitude.
Preliming tank of the present invention carries filtering function, and predefecation juice, after filtering, effectively prevent flocculation material and follows after predefecation juice enters main grey equipment together and again dissolve, and alleviates main ash process burden, also improves the cleanliness factor of syrup on the other hand.After applying to sugar industry line, the unslaked lime usage quantity 20%-30% of follow-up cleaning technique can be saved, carry sugarcane juice clean level 5-10%.
The present invention filters screen frame rotating speed by variable-frequency motor adjustment, and rotating speed controls between 0.5-3 circle is per second, and the residence time of flocculation material on filtration screen frame is no more than 1 second, and flocculation material cannot accumulate on screen frame, therefore can keep good filter effect.
Claims (8)
1. a classified filtering preliming tank, comprises staving (1) and is arranged on agitator (2), sugarcane juice entrance (3), milk of lime entrance (4), the discharge port (5) on staving; It is characterized in that: be provided with predefecation juice equipment for separating liquid from solid below staving, described equipment for separating liquid from solid is divided into layer 2-4 filter mechanism, and every layer of filter mechanism includes and filter screen frame (7), filtration channel (9); The superiors' filtration channel (9) connects the discharge port (5) below staving, filtering screen frame (7) is vertically arranged in filtration channel (9), the filtration channel of its inner bottom part is provided with discharge channel (10), upper and lower two-layer filtration channel (9) is communicated with by discharge channel (10); Described filtration screen frame (7) can rotate freely around back shaft.
2. classified filtering preliming tank according to claim 1, is characterized in that: the mean sizes of size of mesh opening and predefecation juice throw out that screen frame (7) filters in the superiors matches; The size of mesh opening that each layer filters screen frame (7) from top to bottom successively diminishes with the ratio of 0.5-0.8; Described upper screen frame (7) skin is provided with the scraping blade (8) rotated with screen frame; Other one end of all filtration channels is impurity discharge outlet (11), and filtration channel entirety tilts to impurity discharge outlet.
3. according to the arbitrary described classified filtering preliming tank of claim 1-2, it is characterized in that: the upper end back shaft of described filtration screen frame (7) is connected with motor, driven by motor and filter screen frame rotation.
4. classified filtering preliming tank according to claim 3, is characterized in that: described motor (6) is variable-frequency motor, and the control chip of motor controls electric machine rotation according to the pressure of machine shaft, comprises force samples module and driver module; Force samples module integration pressure transmitter, is responsible for the pressure data collecting rotating shaft; Driver module calculates corresponding rotation strategy according to pressure data, then drives filtration screen frame (7) to rotate by motor.
5. classified filtering preliming tank according to claim 4, is characterized in that: described discharge channel (10) is communicated with separation liquid tank; Separation liquid tank connects subsequent processing equipment by the output channel of bottom; Output channel is provided with flowrate control valve, and this control valve can by computer or Artificial Control.
6. classified filtering preliming tank according to claim 5, is characterized in that: described staving (1) is divided into two-layer up and down, and separate with the conical plate that Open Side Down in the middle of staving, conical plate is provided with valve, and staving upper strata is reaction chamber, and lower floor is fluid reservoir; The bottom of staving is the taper of opening upwards, and the vertex of a cone arranges discharge port (5).
7. classified filtering preliming tank according to claim 6, is characterized in that: described agitator (2) quantity is 2 or 4 or 6 or 8, is symmetrically arranged in the reaction chamber of staving (1); Described agitator is spiral stirrer.
8. classified filtering preliming tank according to claim 7, is characterized in that: described filtration screen frame (7) adopts inside and outside Double-level Reticulated structure, and the relative displacement of Inside and outside network is not fixed, and by adjustment displacement between the two, can change the size of grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510178699.5A CN104818348A (en) | 2015-04-16 | 2015-04-16 | Classified filtering pre-liming tank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510178699.5A CN104818348A (en) | 2015-04-16 | 2015-04-16 | Classified filtering pre-liming tank |
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| CN104818348A true CN104818348A (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510178699.5A Pending CN104818348A (en) | 2015-04-16 | 2015-04-16 | Classified filtering pre-liming tank |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107826278A (en) * | 2017-12-11 | 2018-03-23 | 洛阳乐森石化新材料有限公司 | A kind of material automatic metering equipment |
| CN111675227A (en) * | 2020-05-25 | 2020-09-18 | 山东海天生物化工有限公司 | Method for preventing pre-ash barrel from scabbing in distillation process in ammonia-soda process soda ash production |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4795494A (en) * | 1988-03-14 | 1989-01-03 | The Western Sugar Company | Beet juice purification system |
| CN2693153Y (en) * | 2003-11-29 | 2005-04-20 | 刘中亚 | Multifunctional rice washing barrel |
| CN1875118A (en) * | 2003-10-30 | 2006-12-06 | 曼海姆/奥克森富特旭德楚克股份公司 | Method for reducing the lime consumption during sugar-beet juice cleaning |
| CN202962342U (en) * | 2012-12-12 | 2013-06-05 | 天津渤海化工有限责任公司天津碱厂 | Improved preliming barrel |
| CN203886284U (en) * | 2014-06-20 | 2014-10-22 | 苏子太 | Energy-saving automatic rotation type solid-liquid separator |
| CN204644376U (en) * | 2015-04-16 | 2015-09-16 | 南宁易速德机械设备有限公司 | A kind of classified filtering preliming tank |
-
2015
- 2015-04-16 CN CN201510178699.5A patent/CN104818348A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4795494A (en) * | 1988-03-14 | 1989-01-03 | The Western Sugar Company | Beet juice purification system |
| CN1875118A (en) * | 2003-10-30 | 2006-12-06 | 曼海姆/奥克森富特旭德楚克股份公司 | Method for reducing the lime consumption during sugar-beet juice cleaning |
| CN2693153Y (en) * | 2003-11-29 | 2005-04-20 | 刘中亚 | Multifunctional rice washing barrel |
| CN202962342U (en) * | 2012-12-12 | 2013-06-05 | 天津渤海化工有限责任公司天津碱厂 | Improved preliming barrel |
| CN203886284U (en) * | 2014-06-20 | 2014-10-22 | 苏子太 | Energy-saving automatic rotation type solid-liquid separator |
| CN204644376U (en) * | 2015-04-16 | 2015-09-16 | 南宁易速德机械设备有限公司 | A kind of classified filtering preliming tank |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107826278A (en) * | 2017-12-11 | 2018-03-23 | 洛阳乐森石化新材料有限公司 | A kind of material automatic metering equipment |
| CN111675227A (en) * | 2020-05-25 | 2020-09-18 | 山东海天生物化工有限公司 | Method for preventing pre-ash barrel from scabbing in distillation process in ammonia-soda process soda ash production |
| CN111675227B (en) * | 2020-05-25 | 2022-06-07 | 山东海天生物化工有限公司 | Method for preventing pre-ash barrel from scabbing in distillation process in ammonia-soda process soda ash production |
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Inventor after: Chen Qian Inventor after: Zeng Huaihai Inventor after: Wang Shulan Inventor after: Huang Zhike Inventor before: Chen Qian Inventor before: Zeng Huaihai Inventor before: Huang Zhike Inventor before: Nie Jun |
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Free format text: CORRECT: INVENTOR; FROM: CHEN QIAN CENG HUAIHAI HUANG ZHIKE NIE JUN TO: CHEN QIAN CENG HUAIHAI WANG SHULAN HUANG ZHIKE |
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Application publication date: 20150805 |