CN211676388U - Continuous crystallization device for potassium chloride - Google Patents
Continuous crystallization device for potassium chloride Download PDFInfo
- Publication number
- CN211676388U CN211676388U CN202020191732.4U CN202020191732U CN211676388U CN 211676388 U CN211676388 U CN 211676388U CN 202020191732 U CN202020191732 U CN 202020191732U CN 211676388 U CN211676388 U CN 211676388U
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- CN
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- Prior art keywords
- crystallizer
- potassium chloride
- pipe
- crystallization
- tank
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- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 title claims abstract description 92
- 235000011164 potassium chloride Nutrition 0.000 title claims abstract description 46
- 239000001103 potassium chloride Substances 0.000 title claims abstract description 46
- 238000002425 crystallisation Methods 0.000 title claims abstract description 43
- 230000008025 crystallization Effects 0.000 title claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 238000005192 partition Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 abstract description 12
- 230000008020 evaporation Effects 0.000 abstract description 11
- 239000000126 substance Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a potassium chloride continuous crystallization device, which relates to the technical field of chemical devices, and comprises a plurality of crystallization tanks, wherein the crystallization tanks are all communicated with a feeding pipe and a discharging pipe, the discharging pipe of the previous crystallization tank is communicated with the feeding pipe of the next crystallization tank, a heating device is arranged on the periphery of the crystallization tank, the inner bottom of the crystallization tank is fixedly connected with a stirring shaft through a bracket, the middle part of the stirring shaft is rotatably connected with a stirring blade, and a baffle is fixedly connected on the periphery of the inner top part of the crystallization tank, avoiding influencing the evaporation concentration rate of the potassium chloride solution.
Description
Technical Field
The utility model relates to a chemical plant technical field especially relates to potassium chloride continuous crystallization device.
Background
Potassium chloride (chemical formula: KCl) is a kind of hydrochloride, and is a white crystal or crystalline powder, mainly used in inorganic industry, and is a basic raw material for producing various potassium salts. In the process of preparing potassium chloride, the evaporative crystallization process is a basic preparation process, and relatively pure potassium chloride solid can be obtained. However, when the existing evaporation device carries out evaporation crystallization on the potassium chloride solution, steam generated by evaporation is condensed on the inner wall of the evaporation device and flows back to the potassium chloride solution, so that the evaporation rate is reduced, and the production efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a potassium chloride continuous crystallization device, the purpose is in order to solve the steam that the evaporation produced among the conventional art and reflux at the condensing of evaporation plant inner wall in the potassium chloride solution for evaporation rate reduces, influences production efficiency's problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
continuous crystallization device of potassium chloride, including a plurality of crystallizer, it is a plurality of crystallizer all communicates there are inlet pipe and discharging pipe, and the discharging pipe of last crystallizer communicates the inlet pipe of next crystallizer, crystallizer week side is provided with heating device, the crystallizer inner bottom passes through support fixedly connected with (mixing) shaft, the (mixing) shaft middle part is rotated and is connected with stirring vane, all sides fixedly connected with baffle in top in the crystallizer, the baffle intercommunication has a plurality of communicating pipes, a plurality of guiding gutters have been seted up at the top in the crystallizer, and is a plurality of communicating pipes of guiding gutter one-to-one, all sides fixedly connected with in middle part in the crystallizer collects the crown plate, collect crown plate and crystallizer week side formation collecting vat, all intercommunication in crystallizer top one side has the drain pipe collecting vat.
Preferably, a conical bottom is arranged at the bottom of the crystallizing tank, and one end with a small caliber of the conical bottom is communicated with the discharge pipe.
Preferably, the heating device adopts a hot water heating device, and one end of the drain pipe, which is far away from the crystallizing tank, is communicated with the input end of the hot water heating device.
Preferably, the stirring blade is spiral and downward, and the stirring blade and the feeding pipe are at the same level.
Preferably, the baffle is arc and the arc centre of a circle is located the baffle below, and is a plurality of communicating pipe evenly distributed is on the baffle.
Preferably, the communicating pipes are all conical, one end with a small conical caliber is opposite to the diversion trench, and the caliber of the diversion trench is larger than that of the communicating pipes.
Compared with the prior art, the utility model discloses possess following beneficial effect:
1. the utility model discloses when carrying out the evaporative crystallization to potassium chloride solution, the potassium chloride solution that will treat the evaporative crystallization continuously lets in first crystallizer, and the potassium chloride solution is evaporative concentration gradually in a plurality of crystallizers in proper order, finally makes potassium chloride from the crystallization in the solution, generates the potassium chloride solid, accomplishes crystallization work, compares in once only carrying out evaporative crystallization to potassium chloride solution and improves crystallization rate.
2. The utility model discloses when potassium chloride solution evaporates in the crystallizer, the vapor majority of production gets into the crystallizer top through communicating pipe on the baffle in the crystallizer, through drain pipe discharge crystallizer behind the condensation, and the direct condensation of small part is in the baffle bottom, and rethread drain pipe discharge crystallizer in the collecting vat flows in along the baffle to effectively avoid the vapor after the evaporation to condense once more and flow back to the potassium chloride solution in, avoid influencing the evaporative concentration rate of potassium chloride solution and the production rate of potassium chloride.
2. The collecting ring plate which forms the collecting tank has small bottom area and is close to the heating device arranged at the bottom of the crystallizing tank, so that a condensation area is not easy to form, and the condensation reflux of water vapor along the bottom side of the collecting ring plate is effectively avoided; because the drain pipe is kept away from crystallizer one end intercommunication heating device, the comdenstion water that contains partial waste heat lets in hot water heating device to avoid hot water heating device to heat cold water again, improve the thermal utilization efficiency of hot water.
Drawings
FIG. 1 is a schematic structural view of a continuous potassium chloride crystallizing device according to the present invention;
fig. 2 is a schematic structural diagram of a single crystallizing tank of the continuous potassium chloride crystallizing device provided by the utility model.
In the figure: 1 crystallizer, 101 toper end, 2 inlet pipes, 3 discharging pipes, 4 heating device, 5 (mixing) shafts, 6 stirring vane, 7 baffles, 8 communicating pipes, 9 guiding gutters, 10 collection crown plates, 11 collecting vat, 12 drain pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, continuous crystallization device of potassium chloride, including a plurality of crystallizer 1, a plurality of crystallizer 1 all communicate there are inlet pipe 2 and discharging pipe 3, and crystallizer 1 bottom is equipped with at the bottom of the toper 101, and the one end that 101 bore is little at the bottom of the toper communicates with discharging pipe 3, does benefit to the potassium chloride solution outflow after the evaporative concentration.
The discharging pipe 3 of the last crystallizer 1 communicates with the feeding pipe 2 of the next crystallizer 1, and the potassium chloride solution to be evaporated and crystallized is evaporated and concentrated in sequence, so that the potassium chloride solution is conveniently and continuously introduced, and the production efficiency is improved.
1 inner bottom of crystallizer passes through support fixedly connected with (mixing) shaft 5, (mixing) shaft 5 middle part is rotated and is connected with stirring vane 6, and stirring vane 6 is spiral and helical direction downwards, and stirring vane 6 is in same level with inlet pipe 2, promotes stirring vane 6 and rotates after potassium chloride solution lets in, and then makes near 6 solution of stirring vane surge downwards, does benefit to and improves potassium chloride and deposits the effect, improves production efficiency.
The side of the inner top of the crystallizer 1 is fixedly connected with a baffle 7, the baffle 7 is arc-shaped, the center of the arc-shaped circle is positioned below the baffle 7, and condensed water at the bottom of the baffle 7 flows down along the bottom of the baffle 7.
The 7 intercommunications of baffle have a plurality of communicating pipes 8, a plurality of communicating pipes 8 evenly distributed conveniently carry out comprehensive even guide to the vapor of evaporating on baffle 7, a plurality of guiding gutter 9 have been seted up at the top in the crystallizer 1, a plurality of communicating pipes 8 of a plurality of guiding gutter 9 one-to-one, a plurality of communicating pipes 8 all are the toper, and the little one end of toper bore is just to guiding gutter 9, and guiding gutter 9 bore is greater than communicating pipe 8, the water droplet of top condensation falls into communicating pipe 8 in avoiding crystallizer 1.
The collection ring plate 10 is fixedly connected to the inner middle peripheral side of the crystallization tank 1, the collection ring plate 10 and the inner peripheral side of the crystallization tank 1 form a collection tank 11, and the condensed water at the bottom of the partition plate 7 is collected.
All there is drain pipe 12 crystallization tank 1 top collecting vat 11 one side intercommunication, and 1 week side of crystallization tank is provided with heating device 4, and heating device 4 adopts the hot water heating device among the prior art, and 1 one end intercommunication of crystallization tank is kept away from to drain pipe 12 on the hot water heating device input, improves the thermal utilization efficiency of comdenstion water to containing partial residual temperature.
Now, the operation principle of the present invention is described as follows:
when the potassium chloride solution is subjected to evaporative crystallization, firstly, the potassium chloride solution to be subjected to evaporative crystallization is continuously introduced into a first crystallization tank 1, and because a discharge pipe 3 of the previous crystallization tank 1 is communicated with a feed pipe 2 of the next crystallization tank 1, the potassium chloride solution to be subjected to evaporative crystallization is sequentially evaporated and concentrated, so that the potassium chloride solution is conveniently and continuously introduced, and the production efficiency is improved;
when potassium chloride solution is evaporated in a plurality of crystallization tanks 1, most of generated water vapor enters the inner tops of the crystallization tanks 1 through communicating pipes 8 on partition plates 7 fixedly connected with the inner tops of the crystallization tanks 1, and is condensed on the upper surfaces of the partition plates 7 and the inner tops of the crystallization tanks 1, and at the moment, guide grooves 9 which are arranged on the inner tops of the crystallization tanks 1 in one-to-one correspondence with the communicating pipes 8 and have calibers larger than the communicating pipes 8 effectively prevent condensed water from dripping into the communicating pipes 8;
meanwhile, a small part of water vapor is directly condensed at the bottom of the partition plate 7, flows to the collecting ring plate 10 along the bottom of the arc-shaped partition plate 7, is collected in a collecting tank 11 formed by the enclosing of the collecting ring plate 10 and the inner side wall of the crystallizing tank 1, and is discharged out of the crystallizing tank 1 through a drain pipe 12 communicated with the top of the crystallizing tank 1, so that the evaporated water vapor is effectively prevented from being condensed again and flowing back into the potassium chloride solution, and the evaporation concentration rate of the potassium chloride solution and the production rate of potassium chloride are prevented from being influenced;
the discharged condensed water containing partial residual temperature is introduced into the hot water heating device 4, so that the hot water heating device 4 is prevented from heating cold water again, and the utilization efficiency of hot water heat is improved.
In the present invention, unless otherwise expressly stated or limited, the terms "sliding", "rotating", "fixed", "provided", and the like are to be understood in a broad sense, e.g. as welded connections, as bolted connections, or as integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. Potassium chloride continuous crystallization device, including a plurality of crystallizer (1), its characterized in that, a plurality of crystallizer (1) all communicates there are inlet pipe (2) and discharging pipe (3), and discharging pipe (3) of last crystallizer (1) communicate inlet pipe (2) of next crystallizer (1), crystallizer (1) week side is provided with heating device (4), crystallizer (1) inner bottom is through support fixedly connected with (mixing) shaft (5), (mixing) shaft (5) middle part rotation is connected with stirring vane (6), crystallizer (1) inner top week side fixedly connected with baffle (7), baffle (7) intercommunication has a plurality of communicating pipe (8), a plurality of guiding gutter (9) have been seted up at crystallizer (1) inner top, and is a plurality of guiding gutter (9) one-to-one a plurality of communicating pipe (8), crystallizer (1) inner middle part week side fixedly connected with collection ring board (10), the collecting ring plate (10) and the inner peripheral side of the crystallizing tank (1) form a collecting tank (11), and the top of the crystallizing tank (1) and one side of the collecting tank (11) are communicated with a drain pipe (12).
2. The continuous potassium chloride crystallization device according to claim 1, characterized in that the bottom of the crystallization tank (1) is provided with a conical bottom (101), and the end with a small caliber of the conical bottom (101) is communicated with the discharge pipe (3).
3. The continuous potassium chloride crystallizing device as claimed in claim 1, wherein the heating device (4) is a hot water heating device, and the end of the drain pipe (12) far away from the crystallizing tank (1) is communicated with the input end of the hot water heating device.
4. The continuous potassium chloride crystallizing device of claim 1, wherein the stirring blade (6) is spiral and has a downward spiral direction, and the stirring blade (6) is at the same level as the feeding pipe (2).
5. The potassium chloride continuous crystallization device according to claim 1, wherein the partition plate (7) is arc-shaped, the center of the arc-shaped circle is located below the partition plate (7), and the plurality of communicating pipes (8) are uniformly distributed on the partition plate (7).
6. The potassium chloride continuous crystallization device according to claim 1, wherein the plurality of communicating pipes (8) are tapered, one end of the tapered pipe with a small caliber faces the diversion trench (9), and the caliber of the diversion trench (9) is larger than that of the communicating pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020191732.4U CN211676388U (en) | 2020-02-20 | 2020-02-20 | Continuous crystallization device for potassium chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020191732.4U CN211676388U (en) | 2020-02-20 | 2020-02-20 | Continuous crystallization device for potassium chloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211676388U true CN211676388U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020191732.4U Expired - Fee Related CN211676388U (en) | 2020-02-20 | 2020-02-20 | Continuous crystallization device for potassium chloride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211676388U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112691403A (en) * | 2020-12-14 | 2021-04-23 | 安徽国星生物化学有限公司 | 4-cyanopyridine continuous evaporation crystallization device and method |
| CN114042332A (en) * | 2021-08-30 | 2022-02-15 | 重庆大足红蝶锶业有限公司 | Low-energy-consumption strontium nitrate evaporative concentration crystallizing tank |
-
2020
- 2020-02-20 CN CN202020191732.4U patent/CN211676388U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112691403A (en) * | 2020-12-14 | 2021-04-23 | 安徽国星生物化学有限公司 | 4-cyanopyridine continuous evaporation crystallization device and method |
| CN114042332A (en) * | 2021-08-30 | 2022-02-15 | 重庆大足红蝶锶业有限公司 | Low-energy-consumption strontium nitrate evaporative concentration crystallizing tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201016 |