CN201701781U - Vacuum flash evaporation mould - Google Patents
Vacuum flash evaporation mould Download PDFInfo
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- CN201701781U CN201701781U CN201020218243XU CN201020218243U CN201701781U CN 201701781 U CN201701781 U CN 201701781U CN 201020218243X U CN201020218243X U CN 201020218243XU CN 201020218243 U CN201020218243 U CN 201020218243U CN 201701781 U CN201701781 U CN 201701781U
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Abstract
The utility model relates to a vacuum flash evaporation mould, which comprises a forced circulation pump, a crystallization cylinder, a gas-liquid separation chamber, an inner circulating pipe, an outer circulating pipe, a vacuum interface, a feeding port, a discharge port and a clear liquid outlet, wherein the upper surface of the gas-liquid separation chamber is provided with a demister, the crystallization cylinder and the gas-liquid separation chamber are two parts, the diameter of the crystallization cylinder is bigger than the diameter of the gas-liquid separation chamber, a ring-shaped space is arranged between the gas-liquid separation chamber and the crystallization cylinder, and the clear liquid outlet is arranged on the crystallization cylinder. The inner and the outer circulating pipes are connected with a lower cone of the crystallization cylinder, the feeding port is arranged on the outer circulating pipe, and the forced circulation pump is connected with the outer circulating pipe. The discharge port is arranged on the lower portion of the cone of the crystallization cylinder. The vacuum flash evaporation mould has simple structure, steady operation and convenient use, executes adjusting control for main parameters, has flexible process operation which is easy to control, greatly reduces the labor strength, has accurate production control and large production capacity of single device, reduces the number of vacuum moulds which are needed by devices whose scales are above million tons, can save investment, can lead the process and equipment to be large-sized, and is widely used for chemical and pharmacy industries and the like.
Description
Technical field
The utility model relates to a kind of vacuum flashing crystallizer, belongs to technical field of chemical.
Background technology
Commonly used in industries such as chemical industry, pharmacy is crystallizer to the equipment from solution crystallization.Crystallizer can divide crystallizing evaporator and cooler crystallizer by the method that solution obtains hypersaturated state.Cooler crystallizer is used for the dissolution of crystals degree and varies with temperature bigger situation.The type of cooling commonly used is crystallization solution to be cooled off with cooling medium by heat-transfer surface, obtains crystallization thereby form degree of supersaturation, and crystallization process generally needs mechanical agitation.
The Cooling Heat Transfer speed of tradition mechanical agitation type cooler crystallizer is lower, generally is used for the lower occasion of output; The heat exchange surface fouling is more serious; Fouling has a strong impact on device fabrication intensity, and cleaning fouling operation labour intensity is big, the crystalline quality instability.
The vacuum flashing crystallizer is in a kind of container that hot solution is fed low-pressure, seethes with excitement owing to overheated, and a part of solvent is evaporated, and the part heat is taken away by steam simultaneously, and solution temperature descends and separates out the device of crystallization.
Chinese patent CN 201195059Y discloses a kind of vacuum flashing crystallizer, feature is that the crystallizing tank internal upper part is provided with trap, reflector, vacuum tube is installed in the crystallizing tank top, the crystallizing tank bottom is a cone, circulation pipe is installed in outside the lower cone, the import and export end of circulation pipe is arranged in the crystallizing tank, the middle part that the outlet of circulation pipe is arranged in the crystallizing tank connects conical distributor, the cleaning plant of band slag-drip opening is housed in the centre of circulation pipe, is provided with return duct between the charging aperture on crystallizing tank lower cone and the circulation pipe and is connected.This vacuum flashing crystallizer can not be fit to large-scale production, and solid content can not be too high, wayward crystallization.
Summary of the invention
The purpose of the utility model pin provides a kind of new vacuum flashing crystallizer.This vacuum flashing mold structure is simple, and stable operation is manufactured easily, and is easy to use, reduces operating personnel and heavy manual labor.Compare no heat-transfer surface with crystallisation by cooling, manufacturing cost reduces, and not existing simultaneously because of fouling hinders to conduct heat needs the often problem of cleaning, and the anticorrosion problem ratio of equipment is easier to solve.The above scale device of ton needs vacuum crystallizer platform number to reduce, and equipment can maximize.
The vacuum flashing crystallizer that the utility model provides mainly comprises forced circulation pump, crystallization tube, gas-liquid separation chamber, inner circulating tube, outer circulating tube, vacuum interface, charging aperture, discharging opening, rinse mouth, purified liquor outlet.Be provided with demister on gas-liquid separation chamber, can adopt various ways, for example known screen type, deflector type, eddy flow are board-like, and inertia-type etc., the droplet that has in the gas that flash distillation can be come out stop, prevent that it from entering the condensate vacuum system.The crystallization tube is divided into the two parts that are connected up and down with gas-liquid separation chamber, and wherein crystallization tube diameter is greater than gas-liquid separation chamber, and the crystallization tube is made up of straight cylinder and conical shell.Form an annular space between gas-liquid separation chamber and the crystallization tube, purified liquor outlet is arranged on the crystallization tube, can send clear liquid back to concentration section.Inner circulating tube, outer circulating tube all are connected with crystallization tube lower cone, and charging aperture is located on the outer circulating tube, and feedstock direction is identical with the circulation fluid direction.Forced circulation pump connects outer circulating tube, as the power of solution circulation.Collection salt case is that top cylinder lower cone shell connects and composes, and cylinder top is connected with the conical shell lower end of crystallization tube, and discharging opening is located on the collection salt case cylindrical shell, and rinse mouth is located at the lower end of collection salt case.
In the utility model, feed tube is on circulation pipe, because feeding temperature is higher than the temperature of mixed liquor in the crystallizer, the Way out of feed pipe is consistent with the loop direction of mixed liquor simultaneously, so the flash distillation meeting of charging promotes to circulate.Its operation principle is: keep the certain vacuum degree in the container, the feed liquid that flows out circulation pipe can be vaporized gradually, material can be fountain shape and gushes out under vaporization and the double action of circulation thrust, in repetitive process, the flash distillation of solvent and the cooling of solution exist simultaneously, make solution reach hypersaturated state, having a large amount of crystal in the solution simultaneously separates out, big crystalline particle is deposited to the bottom of crystallization tube under the effect of gravity, less crystalline particle is recycled liquid and takes away circulation again, crystalline particle continued growth in the cyclic process, adjust circulation rate and discharging position, make crystallizer possess the means that to control Granularity Distribution and magma density, make crystallization master particle size stable, the mother liquor amount is few, the production intensity height.
The utility model vacuum flashing crystallizer, major parameter are carried out and are regulated control, and technological operation is flexible, and process conditions are easy to control, and labour intensity alleviates significantly, and production control is accurate, constant product quality.Use forced circulation pump, it can control the circulation rate of feed liquid, crystallization solid content height.Main equipment is simple in structure, and stable operation is manufactured easily, and is easy to use, reduces operating personnel and heavy manual labor.Compare no heat-transfer surface with crystallisation by cooling, manufacturing cost reduces, and not existing simultaneously because of fouling hinders to conduct heat needs the often problem of cleaning, and the anticorrosion problem ratio of equipment is easier to solve.Single device production capacity is big, and the above scale device of ton needs vacuum crystallizer platform number to reduce, and can reduce investment outlay.Equipment can maximize.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Rinse mouth as shown in the figure, 1, forced circulation pump, 2,, 3, discharging opening, 4, charging aperture, 5, outer circulating tube, 6, collection salt case, 7, inner circulating tube, 8, the crystallization tube, 9, purified liquor outlet, 10, circulation fluid outlet, 11, gas-liquid separation chamber, 12, demister, 13, vacuum interface, arrow is represented feed liquid and Flow of Goods and Materials direction in the course of work among the figure.
It is board-like that demister is selected from screen type, deflector type, eddy flow, inertia-type.
The deflector type demister: make the tortuous passageway of indirect steam by many parallel connections, drop is in the vertical walls of tortuous passageway and be located in the trap at the tortuous place of passage behind the aggregation, and is dirty along wall, separated.The board-like demister of eddy flow is to make band liquid air-flow do the spiral ascending motion, and drop is thrown to the wall of vaporization chamber by centrifugal force, and is dirty under the gravity effect behind the aggregation.
The screen type demister: when the gas that has mist rose by silk screen with certain speed, because the effect of inertia that mist rises, mist and silk screen filament collided and are attached on filament surfaces.The gravitational settling of the diffusion of mist, mist on the filament surfaces makes mist form bigger drop flow to two rhizoids along filament interface point.The capillarity of the wettability of filament, the surface tension of liquid and filament, make drop increasing, when the drop of assembling arrive making a concerted effort of climbing power that the gravity that himself produces surpasses gas and surface tension of liquid greatly, drop was just from filament separation whereabouts.
Inertia-type demister: the speed and the direction that change steam flow, make the bigger drop of the density that is carried since inertia attached to aggregation on the wall after, flow back to collecting tank by gravity, return duct is established fluid-tight, is used to prevent that the part steam flow from not passing through separator by the return duct short circuit.
Claims (2)
1. a vacuum flashing crystallizer is characterized in that it comprises forced circulation pump, crystallization tube, gas-liquid separation chamber, inner circulating tube, outer circulating tube, vacuum interface, charging aperture, discharging opening, purified liquor outlet; Described gas-liquid separation chamber top is provided with demister; Described crystallization tube and gas-liquid separation chamber are two independent sectors, described crystallization tube forming by straight cylinder and cone, the diameter of crystallization tube is greater than the diameter of gas-liquid separation chamber, form an annular space between gas-liquid separation chamber and the crystallization tube, purified liquor outlet is arranged on the crystallization tube, so that send clear liquid back to concentration section; Inner circulating tube, outer circulating tube all are connected with crystallization tube lower cone, and charging aperture is located on the outer circulating tube, and feedstock direction is identical with the circulation fluid direction; Forced circulation pump connects outer circulating tube; Collection salt case is that top cylinder lower cone shell connects and composes, and cylinder top is connected with the conical shell lower end of crystallization tube, and discharging opening is located on the collection salt case cylindrical shell, and rinse mouth is located at the lower end of collection salt case.
2. vacuum flashing crystallizer according to claim 1 is characterized in that described demister is selected from screen type demister, deflector type demister, the board-like demister of eddy flow or inertia-type demister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020218243XU CN201701781U (en) | 2010-06-08 | 2010-06-08 | Vacuum flash evaporation mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020218243XU CN201701781U (en) | 2010-06-08 | 2010-06-08 | Vacuum flash evaporation mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201701781U true CN201701781U (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020218243XU Expired - Fee Related CN201701781U (en) | 2010-06-08 | 2010-06-08 | Vacuum flash evaporation mould |
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| CN (1) | CN201701781U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284385A (en) * | 2011-07-21 | 2011-12-21 | 无锡荣丰生物工程有限公司 | Built-in cyclone separator device |
| CN104557617A (en) * | 2013-10-10 | 2015-04-29 | 中国石油化工股份有限公司 | Diesel exhaust fluid production method |
| CN104958929A (en) * | 2015-06-02 | 2015-10-07 | 东华工程科技股份有限公司 | Inner baffling-type crystallization separator |
| CN106621431A (en) * | 2016-12-30 | 2017-05-10 | 深圳市危险废物处理站有限公司 | Organic waste liquid evaporation separator and method for treating organic waste liquid |
| CN109045745A (en) * | 2018-08-10 | 2018-12-21 | 国家海洋局天津海水淡化与综合利用研究所 | A kind of band promotes the continuous vacuum equipment of crystallisation by cooling of water conservancy diversion |
| CN110139697A (en) * | 2016-12-29 | 2019-08-16 | 利乐拉瓦尔集团及财务有限公司 | Dodge boiling device |
-
2010
- 2010-06-08 CN CN201020218243XU patent/CN201701781U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284385A (en) * | 2011-07-21 | 2011-12-21 | 无锡荣丰生物工程有限公司 | Built-in cyclone separator device |
| CN104557617A (en) * | 2013-10-10 | 2015-04-29 | 中国石油化工股份有限公司 | Diesel exhaust fluid production method |
| CN104557617B (en) * | 2013-10-10 | 2017-01-25 | 中国石油化工股份有限公司 | Diesel exhaust fluid production method |
| CN104958929A (en) * | 2015-06-02 | 2015-10-07 | 东华工程科技股份有限公司 | Inner baffling-type crystallization separator |
| CN110139697A (en) * | 2016-12-29 | 2019-08-16 | 利乐拉瓦尔集团及财务有限公司 | Dodge boiling device |
| CN110139697B (en) * | 2016-12-29 | 2021-11-05 | 利乐拉瓦尔集团及财务有限公司 | Flash boiling device |
| CN106621431A (en) * | 2016-12-30 | 2017-05-10 | 深圳市危险废物处理站有限公司 | Organic waste liquid evaporation separator and method for treating organic waste liquid |
| CN109045745A (en) * | 2018-08-10 | 2018-12-21 | 国家海洋局天津海水淡化与综合利用研究所 | A kind of band promotes the continuous vacuum equipment of crystallisation by cooling of water conservancy diversion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20110608 |