CN204841013U - Crystallization discharging device - Google Patents
Crystallization discharging device Download PDFInfo
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- CN204841013U CN204841013U CN201520651985.4U CN201520651985U CN204841013U CN 204841013 U CN204841013 U CN 204841013U CN 201520651985 U CN201520651985 U CN 201520651985U CN 204841013 U CN204841013 U CN 204841013U
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- crystallization
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Abstract
The utility model discloses a crystallization discharging device, including the crystallizer, still be equipped with circulation guipure and vacuum chamber, the top surface of vacuum chamber has a water sucking mouth of laminating mutually with circulation guipure bottom surface, the export of crystallizer cooperatees through the material input of feeder hopper with the circulation guipure, the end of feeder hopper is along having brokenly the material tooth, the broken material transfer opposite direction of most advanced orientation with the circulation guipure who expects the tooth. The utility model discloses simple structure, reasonable in design, the thick product of crystallization is after most residual solvent is absorbed to the vacuum chamber, and its water content greatly reduced can show and shorten subsequent stoving time, improves production efficiency.
Description
Technical field
The utility model relates to a kind of chemical industrial purification apparatus, particularly relates to a kind of crystallization drawing mechanism.
Background technology
Crystallization Separation is widely used in the industry such as chemistry, food, medicine, light textile, and many products and intermediate products can be separated by the method for crystallization.Crystallization refers to that material forms the process of crystal from liquid (solution or molten mass) or steam, is one of important method obtaining pure solid matter.
Crystallization is a kind of unit operations belonging to heat, matter transmittance process.Be used for single crystal preparation from the process of molten mass crystallize out, be used for vacuum coating from the process of gas evolution crystal, and what often run in Chemical Manufacture is crystallize out from solution.According to the feature of liquid-solid equilibrium, crystallization operation can not only obtain solid solute from solution, and can realize being separated of solute and impurity, so as to improving the purity of product.Before more than 5000 years, people have started to utilize solar energy inspissation seawater to produce salt.Present crystallization has developed into the economy of producing pure solid product from impure solution and has effectively operated.Many chemical products (as dyestuff, coating, pharmaceuticals and various salts etc.) all can be produced with crystallisation, and the crystal product obtained not only has certain purity, and good looking appearance, are convenient to packaging, transport, storage and application.
According to the difference of solution degree of supersaturation production method, solution crystallization can be subdivided into again crystallisation by cooling, evaporating, concentrating and crystallizing, vacuum insulation crystallization and piezocrystallization etc.Crystallisation by cooling is because it is unique and application background widely, and being always the focus place that crystallization educational circles pays close attention to, is also one of important breakthrough mouth of other type Crystallization Separation mechanism of research usually.
Crystallisation by cooling method substantially not except desolventizing, but makes solution cool and becomes supersaturated solution and crystallization.Be applicable to solubility with temperature decline and the system that significantly reduces.Such as: the solution such as potassium nitrate, sodium nitrate, magnesium sulfate; Evaporating, concentrating and crystallizing method and vacuum insulation crystallisation remove partial solvent.Evaporative crystallization is vaporized by solvent content, makes solution reach supersaturation and crystallization.Be applicable to the system that solubility with temperature changes little system or the reduction of temperature rising solubility.Such as: sodium chloride, anhydrous sodium sulfate etc.
Meeting residual fraction solvent in the product of solution crystallization, so solution crystallization device need be combined with follow-up drying device.Existing crystallizer can not carry out predrainage to crystalline product, and increase the time of follow-up drying process, production efficiency is low.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of crystallization drawing mechanism, can carry out predrainage, accelerate the speed of follow-up drying process, enhance productivity crystalline product.
For achieving the above object, the utility model provides following technical scheme:
A kind of crystallization drawing mechanism, comprise crystallizer, also be provided with circulation guipure and vacuum tank, the end face of vacuum tank is with the water sucking mouth fitted with circulation guipure bottom surface, the outlet of described crystallizer is matched by the material input of feed hopper with circulation guipure, the tip of material tooth, along with broken material tooth, is broken towards contrary with the material direction of transfer of circulation guipure in the end of described feed hopper.
The thick product of crystallization remains partial solvent usually, the baking operation that the thick product needed of crystallization is follow-up, if residual solvent is more, then can extend the time of oven dry, reduces production efficiency.Crystallization drawing mechanism of the present utility model is provided with circulation guipure and end face with the vacuum tank fitted with circulation guipure bottom surface in the exit of its crystallizer, the thick product of crystallization outputs to the material input of circulation guipure from the outlet of crystallizer, when the thick product of crystallization is carried on circulation guipure, vavuum pump produces negative pressure, part residual solvent in the thick product of crystallization is absorbed by the water sucking mouth of vacuum tank, reduce the residual quantity of solvent in the thick product of crystallization, shorten follow-up drying time, enhance productivity; Because the thick product water content of crystallization is comparatively large, easily lump, the broken material tooth of feed hopper can broken lump, and makes the thick product of crystallization be layered on circulation guipure uniformly, improves soaking effect.
As preferably, the top of described feed hopper divides multiple feed zones of arranging successively into by dividing plate, described crystallizer is multiple stage, the corresponding feed zone of outlet of every platform crystallizer.
The discharging simultaneously of multiple stage crystallizer is also dewatered, and enhances productivity.
As preferably, crystallization drawing mechanism of the present utility model is also provided with two surge tanks and vavuum pump, and two surge tanks are by pipeline parallel connection access vacuum tank and vavuum pump.
Vacuum tank is connected with two surge tanks with respectively by pipeline, and with discharge outlet bottom surge tank, top is communicated with vavuum pump; Two surge tanks are with parallel way access vacuum tank and vavuum pump.Discharge outlet bottom surge tank can be connected with the charging aperture of crystallizer by pipeline.
As preferably, with mother liquor valve bottom each surge tank.Close each mother liquor valve when vacuum tank works, mother liquor valve can be opened when the residual solvent in surge tank reaches a certain amount of, discharge from discharge outlet or enter crystallization again in crystallizer.Two surge tanks can be used alone and also can use simultaneously.
For fully removing the residual solvent in the thick product of crystallization, as preferably, described water sucking mouth is the horizontal narrow slit perpendicular to material direction of transfer.
In order to keep the vacuum magnitude in vacuum tank, as preferably, the width of horizontal narrow slit is 0.5 ~ 3mm.Preferred further, described horizontal narrow slit is many that arrange successively.
Vacuum tank can arrange one or along the circulating net band direction of motion be set up in parallel multiple, as preferably, vacuum tank is 2 ~ 5.
Multiple vacuum tank can be accessed by same vavuum pump.Vacuum tank quantity is more, and the de-water ratio of the thick product of crystallization is higher, and lower by water content in the thick product of the crystallization after vacuum tank, follow-up drying time is shorter.Preferred further, the quantity of vacuum tank is generally 3, just can remove the most of residual solvent in the thick product of crystallization.
Compared with prior art, the beneficial effects of the utility model are:
The utility model structure is simple, reasonable in design, when the thick product of crystallization is carried after the fragmentation paving of feed hopper is even on circulation guipure, vavuum pump produces negative pressure, part residual solvent in the thick product of crystallization is absorbed by the water sucking mouth of vacuum tank, reduce the residual quantity of solvent in the thick product of crystallization, shorten follow-up drying time, enhance productivity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model crystallization drawing mechanism;
Fig. 2 is the structural representation of feed hopper.
In above-mentioned accompanying drawing:
1, evaporation concentration device; 2, crystallizer; 21, charging aperture; 22, discharging opening; 23, mother liquor outlet; 24, motor; 25, mother liquor holding tank; 3, circulation guipure; 31, vacuum tank; 32, vacuum tank valve; 33, surge tank; 34, vavuum pump; 4, feed hopper; 41, crushing teeth; 42, dividing plate.
Detailed description of the invention
In order to further set forth the technological means and effect thereof that the utility model takes, below in conjunction with preferred embodiment and accompanying drawing thereof, the utility model crystallization drawing mechanism is described in further detail.
As shown in Figure 1, the crystallization drawing mechanism of the present embodiment comprises crystallizer 2, input vacuum tank 31, surge tank 33 and vavuum pump 34 for carry the bottom surface of the circulation guipure 3 of crystallization thick product, end face and circulation guipure 3 mutually recline corresponding with the discharging opening 22 of crystallizer 2.
The crystallizer of the present embodiment comprises tilted-putted tube-like envelope, and the high order end of tube-like envelope is provided with discharging opening 22, and middle part is provided with charging aperture 21, and low order end is provided with mother liquor outlet 23.Be provided with rotating shaft in tube-like envelope, rotating shaft and tube-like envelope are coaxially arranged, and tube-like envelope are fixed with the motor 24 for drive shaft, rotating shaft are surrounded with carry material ribbon and carry to expect that the outer rim of ribbon bends to high order end.Motor 24 drive shaft is rotated, rotating by specific direction of rotating shaft, material can be transported from low order end to high order end to make carrying material ribbon.
The charging aperture 21 of crystallizer 2 is connected with evaporation concentration device 1, and mother liquor outlet 23 is connected with mother liquor holding tank 25, and uncrystallized mother liquor is admitted to evaporation concentration device 1 evaporation and concentration again after mother liquor holding tank 25 is collected, and carries out crystallization again.Discharging opening 22 is corresponding with the input of circulation guipure 3, and circulation guipure 3 is accepted and carried the thick product of crystallization exported from discharging opening 22.
Between the charging aperture 21 and the input of circulation guipure 3 of crystallizer 2, feed hopper 4 is also installed.As shown in Figure 2, the width of feed hopper 4 width and circulation guipure 3 is suitable.Because crystallization thick product water content is large, easy caking, the present embodiment is provided with crushing teeth 41 in the bottom of feed hopper 4, crushing teeth 41 towards contrary with the mass transport direction of circulation guipure 3, the thick product of crystallization of caking is broken through crushing teeth, be conducive to thick for crystallization product uniform spreading on circulation guipure 3, be convenient to vacuum tank 31 and the thick product of the crystallization on circulation guipure 3 is absorbed water.
The top of feed hopper 4 is provided with dividing plate 42, the top of feed hopper 4 is divided into 3 imports, and bottom is communicated with, multiple stage crystallizer 2 is arranged in parallel, discharging opening 22 import that correspondence is different respectively of each crystallizer 2, is convenient to multiple stage crystallizer 2 and works simultaneously, enhance productivity.
Circulation guipure 3 is rack-mount, the below of the circulation guipure 3 of the thick product of carrying crystallization is provided with vacuum tank 31, the end face of vacuum tank 31 is with the water sucking mouth fitted with circulation guipure 3 bottom surface, water sucking mouth is along circulating net band 3 width, namely many slits that arrange perpendicular to circulation guipure 3 direction of transfer, that arrange successively, the width of slit is 1mm.
The quantity of the vacuum tank 31 of the present embodiment is 3, evenly arranges along circulating net band 3 direction of transfer.
Vacuum tank 31 is connected with surge tank 33 respectively by pipeline, and the pipeline connecting each vacuum tank 31 is respectively arranged with vacuum tank valve 32, and the bottom of surge tank 33 is provided with discharge outlet, and the top of surge tank 33 is connected with vavuum pump 34.Discharge outlet is connected with mother liquor holding tank 25 by pipeline.
The surge tank 33 of the present embodiment is set to 2, and two surge tanks 33 access vacuum tank 31 and vavuum pump 34 in parallel.The bottom of each surge tank 33 is with mother liquor valve.Close each mother liquor valve when vacuum tank 31 works, mother liquor valve can be opened when the residual solvent in surge tank 33 reaches a certain amount of, enter in mother liquor holding tank 25 from discharge outlet.Two surge tanks 33 can be used alone and also can use simultaneously.
When vavuum pump 34 works, negative pressure is produced in vacuum tank 31, the thick product of crystallization on circulation guipure 3 is through vacuum tank 31 place, solvent residual in the thick product of crystallization is inhaled into vacuum tank 31 by water sucking mouth and flows in surge tank 33, enter in mother liquor holding tank 25 when the residual solvent in surge tank 33 reaches a certain amount of by discharge outlet, recrystallization after evaporation and concentration.
The utility model structure is simple, and reasonable in design, the thick product of crystallization is absorbed after most of residual solvent through vacuum tank 31, and its water content reduces greatly, can significantly shorten follow-up drying time, enhance productivity.
The foregoing is only better implementation example of the present utility model, be not limited to the utility model, all within the utility model spirit and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a crystallization drawing mechanism, comprise crystallizer, it is characterized in that, also be provided with circulation guipure and vacuum tank, the end face of vacuum tank is with the water sucking mouth fitted with circulation guipure bottom surface, the outlet of described crystallizer is matched by the material input of feed hopper with circulation guipure, and the tip of material tooth, along with broken material tooth, is broken towards contrary with the material direction of transfer of circulation guipure in the end of described feed hopper.
2. crystallization drawing mechanism according to claim 1, is characterized in that, the top of described feed hopper divides multiple feed zones of arranging successively into by dividing plate, and described crystallizer is multiple stage, the corresponding feed zone of outlet of every platform crystallizer.
3. crystallization drawing mechanism according to claim 1, is characterized in that, is also provided with two surge tanks and vavuum pump, and two surge tanks are by pipeline parallel connection access vacuum tank and vavuum pump.
4. crystallization drawing mechanism according to claim 3, is characterized in that, with mother liquor valve bottom each surge tank.
5. crystallization drawing mechanism according to claim 1, is characterized in that, described water sucking mouth is the horizontal narrow slit perpendicular to material direction of transfer.
6. crystallization drawing mechanism according to claim 5, is characterized in that, the width of horizontal narrow slit is 0.5 ~ 3mm.
7. crystallization drawing mechanism according to claim 6, is characterized in that, described horizontal narrow slit is many that arrange successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520651985.4U CN204841013U (en) | 2015-08-26 | 2015-08-26 | Crystallization discharging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520651985.4U CN204841013U (en) | 2015-08-26 | 2015-08-26 | Crystallization discharging device |
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| Publication Number | Publication Date |
|---|---|
| CN204841013U true CN204841013U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520651985.4U Active CN204841013U (en) | 2015-08-26 | 2015-08-26 | Crystallization discharging device |
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| CN (1) | CN204841013U (en) |
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2015
- 2015-08-26 CN CN201520651985.4U patent/CN204841013U/en active Active
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 312369, No. three, No. 8, Shangyu economic and Technological Development Zone, Hangzhou Bay, Zhejiang, Shaoxing, China Patentee after: Zhejiang Jitai New Material Co., Ltd Address before: 312369, No. three, No. 8, Shangyu economic and Technological Development Zone, Hangzhou Bay, Zhejiang, Shaoxing, China Patentee before: ZHEJIANG LINJIANG CHEMICAL Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |