CN208525882U - Vacuum flash evaporation mould and multistage flash distillation crystallization apparatus - Google Patents
Vacuum flash evaporation mould and multistage flash distillation crystallization apparatus Download PDFInfo
- Publication number
- CN208525882U CN208525882U CN201821109358.8U CN201821109358U CN208525882U CN 208525882 U CN208525882 U CN 208525882U CN 201821109358 U CN201821109358 U CN 201821109358U CN 208525882 U CN208525882 U CN 208525882U
- Authority
- CN
- China
- Prior art keywords
- vacuum
- tank
- component
- level
- crystallization
- 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.)
- Active
Links
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model vacuum flash evaporation mould and multistage flash distillation crystallization apparatus are related to field of chemical equipment.Its purpose is to provide a kind of simple, at low cost, the easy to operate vacuum flash evaporation mould of structure and multistage flash distillation crystallization apparatus.The utility model vacuum flash evaporation mould, including vacuum tank and crystallizing tank, circulation pipe is equipped between vacuum tank and crystallizing tank, circulation pipe outlet is connected on vacuum tank, circulation pipe outlet is connect with circulation pipe, and circulation pipe outlet protrudes into vacuum tank, and circulating pump is connected on circulation pipe, circulating pump connects crystallizing tank, is connected with liquor inlet pipe on circulation pipe；Central tube is connected on vacuum tank, central tube protrudes into crystallizing tank, and discharge nozzle is connected on crystallizing tank.The utility model multistage flash distillation crystallization apparatus includes at least two-stage and crystallizes component, the vacuum flash evaporation mould that every grade of crystallization component includes.
Description
Technical field
The utility model relates to field of chemical equipment, more particularly to vacuum flash evaporation mould and multistage flash distillation crystallization dress
It sets.
Background technique
In Chemical Manufacture, crystallization is a kind of common chemical industry operation unit, and the major way of crystallization, which has, includes:
1, cooling crystallization, refrigerant enter crystallization kettle collet, exchange heat with material in kettle, reach the mesh of decrease temperature crystalline
's；
2, heat exchanger decrease temperature crystalline, by heat exchanger shell pass, material is recycled in tube side refrigerant by circulating pump, with this into
Row decrease temperature crystalline；
3, evaporative crystallization is evaporated material by steam, reaches material concentration and increases, the process that crystal is precipitated；
4, vacuum flashing crystallizes, and is in negative pressure in crystallizing tank by high steam jet pump, material flashes moisture, reaches
Temperature reduces, the process of material crystallization.
Wherein, the heat transfer coefficient of cooling crystallization is low, and heat exchange area is limited, and production capacity is smaller, while needing artificial
It is at high cost；Exchange heat decrease temperature crystalline, needs refrigerant more, frequent occurrence clogging, seriously affects normal production；Evaporative crystallization needs
A large amount of steam are wanted, it is at high cost；It is low that vacuum crystallization is easy to happen blockage problem, production efficiency, wants to equipment intensity, sealing performance etc.
Ask high.
Existing vacuum crystallization device, application reference notification number is the patent application document of 105435482 A of CN, open
A kind of crystallizer and multistage crystallization equipment, wherein crystallizer includes agitating paddle, and agitating paddle carries out the material in crystallizing tank
Stirring accelerates heat exchange, and crystal is promoted to wash out, but agitating paddle is mounted on the structure on crystallizing tank, to the sealing knot of crystallizing tank
Structure, pressure-resistance structure require height, easily cause leakage problem, and sealing structure is easy failure, influences in equipment running process
Safety also influences the economic benefit in production process.Especially in the production process of potassium dihydrogen phosphate, crystallizer is easy stifled
Plug, is unfavorable for continuous production process.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of structures, and simple, at low cost, easy to operate vacuum is dodged
Steam crystallizer and multistage flash distillation crystallization apparatus.
The utility model vacuum flash evaporation mould, including vacuum tank and crystallizing tank,
It is equipped with circulation pipe between the vacuum tank and the crystallizing tank, is connected with circulation pipe outlet on the vacuum tank,
The circulation pipe outlet is connect with the circulation pipe, and the circulation pipe outlet protrudes into the vacuum tank, the circulation pipe
On be connected with circulating pump, the circulating pump connects the crystallizing tank, is connected with liquor inlet pipe, the circulation on the circulation pipe
Pumping mentions the fluid in the crystallizing tank and flows into the vacuum tank along the circulation pipe, the circulation pipe outlet, while described
Fluid in circulation pipe carries the fluid in the liquor inlet pipe and flows into the vacuum tank；
Central tube is connected on the vacuum tank, the central tube is protruded into the crystallizing tank, is connected with out on crystallizing tank
Expects pipe；Material in the vacuum tank flows into the crystallizing tank along the central tube, a part of material in the crystallizing tank
It being flowed out along the discharge nozzle, the surplus material in the crystallizing tank flows into the circulation pipe under the action of circulating pump, into
Row secondary cycle.
The utility model vacuum flash evaporation mould, wherein the crystallizing tank is set as structure wide at the top and narrow at the bottom, the central tube
Protrude into the bottom of the crystallizing tank.
The utility model vacuum flash evaporation mould, wherein the discharge nozzle is set as telescoping tube, the discharge nozzle protrudes into described
One end in crystallizing tank adjustably adjusts.
The utility model vacuum flash evaporation mould, wherein the discharge end of the circulation pipe outlet is set as uncovered structure.
The utility model vacuum flash evaporation mould, wherein the vacuum tank is equipped with several observation windows.
The utility model multistage flash distillation crystallization apparatus includes at least two-stage and crystallizes component, and every grade of crystallization component wraps
Include the vacuum flash evaporation mould.
The utility model multistage flash distillation crystallization apparatus, wherein the crystallization component include the vacuum flash evaporation mould, it is true
Empty pump, condenser, discharging pump, the vacuum pump are connected on the condenser, and the condenser connects the vacuum flashing knot
Brilliant device connects the discharging pump of feed pump or upper level crystallization component on the liquor inlet pipe of the vacuum flash evaporation mould, described
The discharge nozzle of vacuum flash evaporation mould connects the discharging pump.
The utility model multistage flash distillation crystallization apparatus, wherein the crystallization component includes level Four, including sequentially connected one
Grade crystallization component, secondary crystallization component, three-level crystallization component and level Four crystallize component, the circulation pumping of the first degree crystalline component
Enter thermal material.
The utility model multistage flash distillation crystallization apparatus, wherein just separation fills for the discharging pump connection of level Four crystallization component
It sets.
The utility model multistage flash distillation crystallization apparatus, wherein the first degree crystalline component, secondary crystallization component, three-level crystallize
Component and level Four crystallization component vacuum system it is mutually indepedent, first degree crystalline component, secondary crystallization component, three-level crystallization component and
The vacuum degree of level Four crystallization component is successively successively decreased.
The utility model vacuum flash evaporation mould and multistage flash distillation crystallization apparatus difference from prior art are: this
Utility model vacuum flash evaporation mould and multistage flash distillation crystallization apparatus, including vacuum tank and crystallizing tank, material vacuum tank with
It is circulated between crystallizing tank, the moisture in material evaporates in vacuum tank, and the crystal in material is precipitated, and realizes the knot of material
It is brilliant；
It is equipped with circulation pipe between vacuum tank and crystallizing tank, is connected with circulation pipe outlet, circulation pipe outlet on vacuum tank
It is connect with circulation pipe, circulation pipe outlet protrudes into vacuum tank, and circulating pump is connected on circulation pipe, is connected with feed liquid on circulation pipe
Inlet tube, circulating pump connect crystallizing tank, and the fluid in circulating pump extractive crystallization tank flows into vacuum along circulation pipe, circulation pipe outlet
Tank, while the fluid in circulation pipe carries the fluid in liquor inlet pipe and flows into vacuum tank, the material stream in circulation pipe outlet
It is quickly mixed with the material in vacuum tank after out, is distributed the heat of material in vacuum tank more uniform, advantageously accounts for vacuum
In tank the problem of uneven heating；
Central tube is connected on vacuum tank, central tube protrudes into crystallizing tank, and discharge nozzle is connected on crystallizing tank；In vacuum tank
Material flowed into along crystallizing tank along central tube, a part of material in crystallizing tank is flowed out along discharge nozzle, the residue in crystallizing tank
Material flows into circulation pipe under the action of circulating pump, carries out secondary cycle；Material in vacuum tank is in temperature and pressure with cooperation
Under, the moisture in material evaporates, while evaporating to further speed up moisture in material, follows the material in vacuum tank
Circulation is dynamic, promotes the even heat of material, and the Matter Transfer in vacuum tank and crystallizing tank flows.
The vacuum flash evaporation mould of the utility model and multistage flash distillation crystallization apparatus are made with reference to the accompanying drawing further
Explanation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model vacuum flash evaporation mould；
Fig. 2 is the structural schematic diagram of the utility model multistage flash distillation crystallization apparatus.
Attached drawing mark: 1, vacuum tank；2, observation window；3, circulation pipe outlet；4, circulation pipe；5, liquor inlet pipe；6, it follows
Ring pump；7, crystallizing tank；8, central tube；9, discharge nozzle；10, first degree crystalline component；11, secondary crystallization component；12, three-level crystallization group
Part；13, level Four crystallizes component；14, primary separating device；15, level-one vacuum pump；16, first-stage condenser；17, two-stage vacuum pump；
18, secondary condenser；19, three-level vacuum pump；20, three-level condenser；21, level Four vacuum pump；22, level Four condenser；23, level-one
Vacuum flash evaporation mould；24, feed pump；25, level-one discharging pump；26, secondary vacuum flash evaporation crystallizer；27, second level discharging pump；
28, three-level vacuum flash evaporation mould；29, three-level discharging pump；30, level Four vacuum flash evaporation mould；31, level Four discharging pump；32, bottom
Layer；33, crystal increases layer；34, crystal suspension layer；35, supernatant layer.
Specific embodiment
As shown in Figure 1, the utility model vacuum flash evaporation mould, including vacuum tank 1 and crystallizing tank 7, material is in vacuum tank 1
It is circulated between crystallizing tank 7, the moisture in material evaporates in vacuum tank 1, and the crystal in material is precipitated, and realizes material
Crystallization.
It is equipped with circulation pipe 4 between vacuum tank 1 and crystallizing tank 7, is connected with circulation pipe outlet 3 on vacuum tank 1, circulation pipe goes out
Mouth pipe 3 is connect with circulation pipe 4, and circulation pipe outlet 3 protrudes into vacuum tank 1, and circulating pump 6, circulation pipe 4 are connected on circulation pipe 4
On be connected with liquor inlet pipe 5, circulating pump 6 connects crystallizing tank 7, the fluid in 6 extractive crystallization tank 7 of circulating pump along circulation pipe 4, follow
Endless tube outlet 3 flows into vacuum tank 1, while the fluid in circulation pipe 4 carries the fluid in liquor inlet pipe 5 and flows into vacuum tank 1；
Material enters circulation pipe 4 along liquor inlet pipe 5, and the circulating pump 6 connected along circulation pipe 4 is by the material in crystallizing tank 7
It is sent into vacuum tank 1 simultaneously with the material flowed into along liquor inlet pipe 5, the circulation pipe outlet 3 connected on circulation pipe 4 is extend into
In vacuum tank 1, and the outlet of circulation pipe outlet 3 is arranged in below the material liquid level in vacuum tank 1, circulation pipe outlet 3
It is quickly mixed with the material in vacuum tank 1 after interior material outflow, is distributed the heat of material in vacuum tank 1 more uniform, has
Conducive to solving the problems, such as uneven heating in vacuum tank 1.
Further, in order to guarantee the mobility of material in vacuum tank 1, central tube 8, central tube 8 are connected on vacuum tank 1
It protrudes into crystallizing tank 7, discharge nozzle 9 is connected on crystallizing tank 7；Material in vacuum tank 1 flows into crystallizing tank 7 along central tube 8, knot
A part of material in brilliant tank 7 is flowed out along discharge nozzle 9, and the surplus material in crystallizing tank 7 flows into circulation under the action of circulating pump 6
Pipe 4 carries out secondary cycle.
Material in vacuum tank 1 is under the mating reaction of temperature and pressure, the evaporation of moisture in material, while in order into one
Step accelerates moisture evaporation in material, circulates the material in vacuum tank 1, promotes the even heat of material, vacuum
Matter Transfer in tank 1 and crystallizing tank 7 flows.Specifically, the material in vacuum tank 1 is flowed into crystallizing tank 7 by central tube 8,
Material in crystallizing tank 7 is divided into upper materials and lower layer's material, there is partial crystals precipitation in vacuum tank 1, and crystal is made in gravity
With lower downward sedimentation, crystal and part solution material form lower layer's material, and lower layer's material is flowed out along discharge nozzle 9, carry out further
Processing；Lighter solution forms upper materials in crystallizing tank 7, and upper materials are under the action of circulating pump 6, circulating reflux to vacuum
It in tank 1, is crystallized, is circuited sequentially again.
Further, crystallizing tank 7 is set as structure wide at the top and narrow at the bottom, and central tube 8 protrudes into the bottom 32 of crystallizing tank 7.Specifically,
Crystallizing tank 7 is set as approximately conical shape structure, and crystallizing tank 7 is divided into bottom 32 from bottom to top, crystal increases layer 33, crystal suspension layer
34 and supernatant layer 35, the radial dimension that bottom 32, crystal increase layer 33, crystal suspension layer 34 and supernatant layer 35 successively becomes larger, just
Precipitated and separated is carried out in the material in crystallizing tank 7, is also adapted with circulating pump 6, crystal increases the material of layer 33 and supernatant layer 35
Flow velocity is low, flowing is slow, impact of the smaller Flow of Goods and Materials to circulating pump 6, guarantees that circulating pump 6 is service life.
Specifically, bottom 32 is approximate truncated conical shape, and bottom 32 is curved wall structure, optimizes fluid in crystallizing tank 7
Flow regime, crystal increase layer 33 be cylindrical shape, crystal suspension layer 34 be truncated conical shape, supernatant layer 35 be cylindrical shape,
It is adjusted convenient for the flow velocity of material in crystallizing tank 7.
Further, discharge nozzle 9 is set as telescoping tube, and discharge nozzle 9 protrudes into one end in crystallizing tank 7 and adjustably adjusts, and realizes
Discharge nozzle 9 protrudes into the telescopic adjustment of the depth of crystallizing tank 7, to adjust the peace of discharge nozzle 9 according to actual needs in production scene
Holding position keeps the scope of application of equipment wider.Specifically, the telescopic adjustment of discharge nozzle 9, can be set to by being detachably connected
Pipe fitting is spliced to form, and can also be set as the casing fixed by clip.
Further, the discharge end of circulation pipe outlet 3 is set as uncovered structure, i.e. the discharge end of circulation pipe outlet 3
Radial dimension becomes larger, and flows into vacuum tank 1 conducive to the material in circulation pipe outlet 3, also reduces circulation pipe outlet 3 and flows
The flow velocity of material out prevents materials from spattering, guarantees the feeding quickly and in vacuum tank 1 to vacuum tank 1 of circulation pipe outlet 3
Material mixing is conducive to material and crystallizes.
Further, vacuum tank 1 is equipped with several observation windows 2, and observation window 2 is at least provided with one, the installation of observation window 2
The liquid level of material is adapted in position and vacuum tank 1.Preferably, observation window 2 includes the window of three longitudinal arrangements, intermediate sight
It examines 2 mouthfuls of window of mounting height to adapt to the liquid level of material in vacuum tank 1, material in vacuum tank 1 is arranged in upper and lower two windows
Within the scope of liquid level flying height, convenient for liquid level in observation vacuum tank 1, and then guarantee the safe and stable operation of equipment.
Preferably, circulating pump 6 selects verticle circulatory pump, guarantees material reciprocation cycle stream between vacuum tank 1 and crystallizing tank 7
It is dynamic, make material sufficient crystallising, improves production efficiency.
The utility model vacuum flash evaporation mould is cooperated by circulating pump 6, vacuum tank 1, crystallizing tank 7, using circulation
The mode of flow-disturbing promotes material to flow between vacuum tank 1 and crystallizing tank 7, material multi circulation crystallization, without peace in vacuum tank 1
Stirring structure is filled, solves the problems, such as that the seal structure complex of traditional stirred crystallization mode, sealing structure are easy failure, improves
Equipment service life reduces equipment cost, saves repair and maintenance expense, and structure is simple, facilitates debugging.
Referring to figs. 1 and 2, the utility model multistage flash distillation crystallization apparatus, include at least two-stage crystallize component, every grade
Crystallization component includes vacuum flash evaporation mould, the crystallization production process of material, at least progress two-stage crystallization, guarantee production effect
Benefit, and above-mentioned vacuum flash evaporation mould is applied, reduce equipment cost, moreover it is possible to adapt to production requirement.
Further, crystallization component includes vacuum flash evaporation mould, vacuum pump, condenser, discharging pump, and vacuum pump is connected to
On condenser, condenser connects vacuum flash evaporation mould, connect on the liquor inlet pipe 5 of vacuum flash evaporation mould feed pump 24 or
Upper level crystallizes the discharging pump of component, and the discharge nozzle 9 of vacuum flash evaporation mould connects discharging pump.
Material is conveyed from liquor inlet pipe 5 or upper level discharging pump to vacuum flash evaporation mould, and material is entered vacuum flashing
Crystallizer simultaneously recycles flow-disturbing in vacuum flash evaporation mould, promotes material crystallization.Condenser is connected on vacuum flash evaporation mould, it is cold
Condenser connects vacuum pump, and vacuum pump aspirates the steam in vacuum flash evaporation mould by condenser, and steam enters condenser progress
It condenses, the condensed water eductor condenser that steam condenses, the gas that cannot be condensed in steam is aspirated by vacuum pump and is discharged, very
Sky pump guarantees the vacuum degree of equipment with condenser cooperation, also promotes the steam flowing in vacuum flash evaporation mould, promotes material knot
It is brilliant.The outlet of vacuum flash evaporation mould connects discharge nozzle 9, and discharge nozzle 9 connects discharging pump, and discharging pump promotes vacuum flash evaporation mould
Discharging, and material is sent into next stage equipment.
Specifically, the cold source of condenser uses cooling water, cooling water exchanges heat with the steam in condenser, so as to steam
Cooling condensation.
Preferably, crystallization component includes level Four, including sequentially connected first degree crystalline component 10, secondary crystallization component 11,
Three-level crystallizes component 12 and level Four crystallizes component 13, and the circulating pump 6 of first degree crystalline component 10 is sent into thermal material, carries out level Four crystallization
Processing guarantees material sufficient crystallising, improves production efficiency.
Specifically, first degree crystalline component 10 includes level-one vacuum pump 15, first-stage condenser 16, level-one vacuum flash evaporation mould
23 and level-one discharging pump 25, connect feed pump 24 on the liquor inlet pipe 5 of level-one vacuum flash evaporation mould 23, thermal material by into
Material pump 24 enters level-one vacuum flash evaporation mould 23, and material carries out first degree crystalline, the material in level-one vacuum flash evaporation mould 23
Secondary crystallization component 11 is sent by level-one discharging pump 25.Similarly, secondary crystallization component 11 is cold including two-stage vacuum pump 17, second level
Condenser 18, secondary vacuum flash evaporation crystallizer 26 and second level discharging pump 27, level-one discharging pump 25 is by the material of first degree crystalline component 10
It is sent into secondary vacuum flash evaporation crystallizer 26, material carries out secondary crystallization, and the material of secondary vacuum flash evaporation crystallizer 26 passes through second level
Discharging pump 27 is sent into three-level and crystallizes component 12；It is true including three-level vacuum pump 19, three-level condenser 20, three-level that three-level crystallizes component 12
The material of secondary crystallization component 11 is sent into three-level vacuum and dodged by empty flash evaporation crystallizer 28 and three-level discharging pump 29, second level discharging pump 27
Crystallizer 28 is steamed, material carries out three-level crystallization, and the material of three-level vacuum flash evaporation mould 28 is sent into four by three-level discharging pump 29
Grade crystallization component 13；It includes level Four vacuum pump 21, level Four condenser 22, level Four vacuum flash evaporation mould 30 that level Four, which crystallizes component 13,
With level Four discharging pump 31, the material of three-level crystallization component 12 is sent into level Four vacuum flash evaporation mould 30, object by three-level discharging pump 29
Material carries out level Four crystallization, and the material of level Four vacuum Shenzhen crystallizer is sent into next stage equipment by level Four discharging pump 31.
Further, the discharging pump of level Four crystallization component 13 connects primary separating device 14, and primary separating device 14 can be set to
The structures such as thickener, slurry tank, crystallization tank, structure type multiplicity are applied widely.Material carries out in primary separating device 14
Initial gross separation, the material in primary separating device 14 are divided into supernatant and slurry, and supernatant overflow from primary separating device 14 is flowed out,
In case recycling, slurry flows into next stage equipment, and then further separating treatment.
Specifically, being connected with centrifuge on primary separating device 14, slurry enters centrifuge and is separated again, to crystallize
It is sufficiently separated with solution.
Further, first degree crystalline component 10, secondary crystallization component 11, three-level crystallization component 12 and level Four crystallize component 13
Vacuum system it is mutually indepedent, first degree crystalline component 10, secondary crystallization component 11, three-level crystallization component 12 and level Four crystallize component
13 vacuum degree is successively successively decreased.Every grade of crystallization component is equipped with vacuum pump, has every grade of crystallization component relatively independent true
Empty set system, every grade of crystallization component can be arranged different vacuum degrees, make first degree crystalline component 10, secondary crystallization component 11, three-level
The vacuum degree of crystallization component 12 and level Four crystallization component 13 is successively successively decreased, and reduces the boiling point of material, successively conducive to the water in material
Divide evaporation, promotes crystallization.
The utility model multistage flash distillation crystallization apparatus is particularly suitable for phosphorus suitable for the crystallization production process of various materials
The production of acid dihydride potassium, first degree crystalline component 10, secondary crystallization component 11, three-level crystallization component 12 and level Four crystallize in component 13
The vacuum degree of vacuum tank 1 successively successively decrease, reduce boiling point of the thermal material of potassium dihydrogen phosphate in four groups of crystallization components step by step,
And then the concentration of the thermal material of the potassium dihydrogen phosphate in four groups of crystallization components improves step by step, the crystal material in four groups of crystallization components
Increase step by step, after the material in level Four crystallization component 13 enters primary separating device 14, is tentatively separated by solid-liquid separation, preliminary solid-liquid point
Centrifuge is entered back into from after to be sufficiently separated.
The utility model multistage flash distillation crystallization apparatus, from first degree crystalline component 10, secondary crystallization component 11, three-level crystallization group
Part 12, level Four crystallization component 13 are independent vacuum system, and vacuum degree is successively successively decreased, and feed liquid temperature is successively decreased, and realize multistage flash distillation,
Design is reasonable；And there is no heater or Outer Cooler on vacuum flash evaporation mould, avoid heating or cooling down causing the knot of heat-transfer surface
Brilliant blockage problem；It realizes continuous production, improves production efficiency, reduce production cost and be particularly suitable in fertilizer industry
The process of potassium dihydrogen phosphate produces.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various changes and improvements that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines
In range.
Claims (10)
1. a kind of vacuum flash evaporation mould, it is characterised in that: including vacuum tank and crystallizing tank,
It is equipped with circulation pipe between the vacuum tank and the crystallizing tank, is connected with circulation pipe outlet on the vacuum tank, it is described
Circulation pipe outlet is connect with the circulation pipe, and the circulation pipe outlet protrudes into the vacuum tank, is connected on the circulation pipe
It is connected to circulating pump, the circulating pump connects the crystallizing tank, is connected with liquor inlet pipe, the circulation pumping on the circulation pipe
The fluid mentioned in the crystallizing tank flows into the vacuum tank, while the circulation along the circulation pipe, the circulation pipe outlet
Fluid in pipe carries the fluid in the liquor inlet pipe and flows into the vacuum tank；
Central tube is connected on the vacuum tank, the central tube protrudes into the crystallizing tank, and discharge nozzle is connected on crystallizing tank；
Material in the vacuum tank flows into the crystallizing tank along the central tube, and a part of material in the crystallizing tank is described in
Discharge nozzle flows out, and the surplus material in the crystallizing tank flows into the circulation pipe under the action of circulating pump, carries out secondary
Circulation.
2. vacuum flash evaporation mould according to claim 1, it is characterised in that: the crystallizing tank is set as knot wide at the top and narrow at the bottom
Structure, the central tube protrude into the bottom of the crystallizing tank.
3. vacuum flash evaporation mould according to claim 1, it is characterised in that: the discharge nozzle is set as telescoping tube, described
Discharge nozzle protrudes into one end in the crystallizing tank and adjustably adjusts.
4. vacuum flash evaporation mould according to claim 1, it is characterised in that: the discharge end of the circulation pipe outlet is set
For uncovered structure.
5. vacuum flash evaporation mould according to claim 1, it is characterised in that: the vacuum tank is equipped with several observations
Window.
6. a kind of multistage flash distillation crystallization apparatus, it is characterised in that: include at least two-stage and crystallize component, every grade of crystallization component is equal
Including vacuum flash evaporation mould described in claim 1-5 any one.
7. multistage flash distillation crystallization apparatus according to claim 6, it is characterised in that: the crystallization component includes the vacuum
Flash evaporation crystallizer, vacuum pump, condenser, discharging pump, the vacuum pump are connected on the condenser, and the condenser connects institute
Vacuum flash evaporation mould is stated, feed pump is connected on the liquor inlet pipe of the vacuum flash evaporation mould or upper level crystallizes component
The discharge nozzle of discharging pump, the vacuum flash evaporation mould connects the discharging pump.
8. multistage flash distillation crystallization apparatus according to claim 6 or 7, it is characterised in that: the crystallization component includes level Four,
Component, the level-one knot are crystallized including sequentially connected first degree crystalline component, secondary crystallization component, three-level crystallization component and level Four
The circulation of brilliant component is pumped into thermal material.
9. multistage flash distillation crystallization apparatus according to claim 8, it is characterised in that: the discharging pump of the level Four crystallization component
Connect primary separating device.
10. multistage flash distillation crystallization apparatus according to claim 8, it is characterised in that: the first degree crystalline component, second level knot
The vacuum system of brilliant component, three-level crystallization component and level Four crystallization component is mutually indepedent, first degree crystalline component, secondary crystallization group
The vacuum degree of part, three-level crystallization component and level Four crystallization component is successively successively decreased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821109358.8U CN208525882U (en) | 2018-07-13 | 2018-07-13 | Vacuum flash evaporation mould and multistage flash distillation crystallization apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821109358.8U CN208525882U (en) | 2018-07-13 | 2018-07-13 | Vacuum flash evaporation mould and multistage flash distillation crystallization apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208525882U true CN208525882U (en) | 2019-02-22 |
Family
ID=65387845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821109358.8U Active CN208525882U (en) | 2018-07-13 | 2018-07-13 | Vacuum flash evaporation mould and multistage flash distillation crystallization apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208525882U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114210088A (en) * | 2021-12-27 | 2022-03-22 | 天津农学院 | OLSO type multistage flash continuous crystallization system and process for processing lithium carbonate mother liquor |
| CN114288694A (en) * | 2021-12-31 | 2022-04-08 | 天津农学院 | Flash steam compression type continuous crystallization system and process for high-purity lithium carbonate |
| CN115040890A (en) * | 2022-06-13 | 2022-09-13 | 浙江贝诺机械有限公司 | Process for re-melting, purifying and recrystallizing oxalic acid |
-
2018
- 2018-07-13 CN CN201821109358.8U patent/CN208525882U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114210088A (en) * | 2021-12-27 | 2022-03-22 | 天津农学院 | OLSO type multistage flash continuous crystallization system and process for processing lithium carbonate mother liquor |
| CN114288694A (en) * | 2021-12-31 | 2022-04-08 | 天津农学院 | Flash steam compression type continuous crystallization system and process for high-purity lithium carbonate |
| CN114288694B (en) * | 2021-12-31 | 2023-04-07 | 天津农学院 | Flash steam compression type continuous crystallization system and process for high-purity lithium carbonate |
| CN115040890A (en) * | 2022-06-13 | 2022-09-13 | 浙江贝诺机械有限公司 | Process for re-melting, purifying and recrystallizing oxalic acid |
| CN115040890B (en) * | 2022-06-13 | 2023-08-29 | 浙江贝诺机械有限公司 | Process for purifying and recrystallizing oxalic acid by remelting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208525882U (en) | Vacuum flash evaporation mould and multistage flash distillation crystallization apparatus | |
| CN106512457A (en) | Four-effect concentration-crystallization-coupled system for threonine and operation process thereof | |
| WO2020019542A1 (en) | Vertical vacuum crystallizing apparatus | |
| CN104524807A (en) | MVR (Mechanical Vapor Recompression) continuous evaporating crystallizing system | |
| CN204428876U (en) | MVR continuous evaporative crystallization system | |
| CN104524806B (en) | A kind of hexamethylenamine complete continuous crystallisation production technology and equipments | |
| CN203196371U (en) | Continuous potassium dihydrogen phosphate crystallization device | |
| CN108837550A (en) | A kind of xylitol vacuum continuous crystallisation process and system | |
| CN202263416U (en) | Monosodium glutamate normal-pressure crystallizing equipment | |
| CN204428875U (en) | The complete continuous crystallisation production process equipment of a kind of methenamine | |
| CN207957789U (en) | A kind of manganese sulfate solution crystallization apparatus | |
| JP2009529911A (en) | Improved vertical continuous vacuum kettle | |
| CN207785992U (en) | A kind of bronze production Oslo-type crystallizing evaporator | |
| CN206167974U (en) | Continuous single -action vacuum evaporation crystal system | |
| CN108373162A (en) | A kind of equipment of crystallisation by cooling of potassium nitrate | |
| CN208711101U (en) | A kind of vertical vacuum crystallization apparatus | |
| CN209128047U (en) | A kind of saltcake hot melting recycling utilizes system | |
| CN212713309U (en) | Salicylic acid recrystallization system | |
| CN209809543U (en) | Seven-effect tube type falling film evaporator set | |
| CN213790049U (en) | Forced circulation evaporation crystallization system | |
| CN108970166A (en) | One kind being used for chemical products crystallization apparatus | |
| CN207041942U (en) | A kind of forced-circulation evaporation crystallization apparatus with multiple-effect evaporation unit | |
| CN205164164U (en) | Tape unit tool vapor recompression's tertiary concentrated system of falling liquid film circulation evaporating in succession | |
| CN109550274A (en) | A kind of highly acidity thermal crystalline substance continuous crystallisation device | |
| CN216571630U (en) | Sodium sulfate quadruple effect evaporation crystallization device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |