CN212417053U - Cooling, stirring and crystallizing kettle for magnesium sulfate - Google Patents
Cooling, stirring and crystallizing kettle for magnesium sulfate Download PDFInfo
- Publication number
- CN212417053U CN212417053U CN202020222501.5U CN202020222501U CN212417053U CN 212417053 U CN212417053 U CN 212417053U CN 202020222501 U CN202020222501 U CN 202020222501U CN 212417053 U CN212417053 U CN 212417053U
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- China
- Prior art keywords
- stirring
- cooling
- magnesium sulfate
- shaft
- kettle body
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- 238000003756 stirring Methods 0.000 title claims abstract description 85
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 title claims abstract description 66
- 238000001816 cooling Methods 0.000 title claims abstract description 58
- 229910052943 magnesium sulfate Inorganic materials 0.000 title claims abstract description 31
- 235000019341 magnesium sulphate Nutrition 0.000 title claims abstract description 31
- 238000002425 crystallisation Methods 0.000 claims abstract description 22
- 230000008025 crystallization Effects 0.000 claims abstract description 22
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract 4
- 238000000926 separation method Methods 0.000 claims description 18
- 238000007790 scraping Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 238000009529 body temperature measurement Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 3
- 229960003390 magnesium sulfate Drugs 0.000 description 21
- 239000000243 solution Substances 0.000 description 14
- 239000000498 cooling water Substances 0.000 description 7
- WRUGWIBCXHJTDG-UHFFFAOYSA-L magnesium sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Mg+2].[O-]S([O-])(=O)=O WRUGWIBCXHJTDG-UHFFFAOYSA-L 0.000 description 7
- 229940061634 magnesium sulfate heptahydrate Drugs 0.000 description 7
- 239000013078 crystal Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229940076230 magnesium sulfate monohydrate Drugs 0.000 description 1
- DTGRQRFFKHYRJG-UHFFFAOYSA-N magnesium tetrahydrate Chemical compound O.O.O.O.[Mg+2] DTGRQRFFKHYRJG-UHFFFAOYSA-N 0.000 description 1
- LFCFXZHKDRJMNS-UHFFFAOYSA-L magnesium;sulfate;hydrate Chemical compound O.[Mg+2].[O-]S([O-])(=O)=O LFCFXZHKDRJMNS-UHFFFAOYSA-L 0.000 description 1
- LVCQAASWWXWFTQ-UHFFFAOYSA-L magnesium;sulfate;pentahydrate Chemical compound O.O.O.O.O.[Mg+2].[O-]S([O-])(=O)=O LVCQAASWWXWFTQ-UHFFFAOYSA-L 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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- Accessories For Mixers (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model relates to a cooling stirring crystallization kettle for magnesium sulfate, including the speed reducer, (mixing) shaft, the cauldron body, stirring subassembly and cooling module, cauldron body top has feed inlet and its bottom has the discharge gate, the stirring subassembly includes stirring rake and spiral pivot, the cooling module includes cooling jacket, annular overflow launder and drainage cover, cooling jacket cup joints at the external portion of cauldron, annular overflow tank cover and the coaxial setting of the cauldron body and with cauldron internal wall fixed connection, the drainage cover is for invering leak hopper-shaped and its setting is in annular overflow launder below and be used for the material drainage that flows in the annular overflow launder to being close to cauldron internal wall department and falling. The utility model discloses carry out rapid, even cooling heat transfer to magnesium sulfate solution with annular overflow launder, drainage cover and cooling jacket, assist through stirring rake and spiral pivot and be the cooling, prevent the caking simultaneously for seven water magnesium sulfate product textures are even, impurity is few and the ejection of compact is smooth when producing.
Description
Technical Field
The utility model relates to a cooling stirring crystallization device field especially relates to a cooling stirring crystallization kettle for magnesium sulfate.
Background
The magnesium sulfate used in industry is generally magnesium sulfate heptahydrate, 12 water crystals are used for precipitating crystals with different water contents by controlling different temperatures, the temperature is controlled to be-1.8-48.18 ℃ saturated aqueous solution, magnesium sulfate heptahydrate is precipitated, magnesium sulfate hexahydrate is precipitated in 48.1-67.5 ℃ saturated aqueous solution, magnesium sulfate monohydrate is precipitated when the temperature is higher than 67.5 ℃, magnesium sulfate hexahydrate is subjected to heteroelement melting at 87-92 ℃ to generate magnesium sulfate pentahydrate or tetrahydrate, for the production of magnesium sulfate heptahydrate, the hydrated crystal before cooling is generally about 50 ℃, cooling water is introduced into a jacket outside a crystallization kettle to cool and crystallize the solution, the magnesium sulfate in the solution is precipitated in a crystal form in the cooling process, the process is called crystallization, a stirrer in the crystallization kettle fully stirs the magnesium sulfate solution, and the magnesium sulfate solution is precipitated in the cooling process of the magnesium sulfate solution under the action of uniform stirring, magnesium sulfate heptahydrate product is formed.
The existing cooling crystallization kettle mainly has two defects in the production process, firstly, because a cooling jacket is sleeved outside the crystallization kettle, and a cooling device added inside the crystallization kettle has poor reliability, an original solution is directly poured into a kettle body from an opening during stirring, so that magnesium sulfate solution is easily cooled unevenly and untimely, and magnesium sulfate hexahydrate is greatly separated out; and secondly, magnesium sulfate heptahydrate and magnesium sulfate hexahydrate are mixed and easily coagulated into blocks at the bottom of the kettle body, so that a discharge hole is blocked, and the production efficiency is low.
Patent No. 2014102719353 prevents the crystallization kettle of crystal from overflow mouth outflow, though be equipped with the overflow district but still can't high-efficiently improve its cooling effect, patent No. 2017212082726 be convenient for observe and the chemical industry crystallization kettle of ejection of compact, though set up ejection of compact hob in crystallization kettle bottom exit, can't guarantee that solution carries out effective, even cooling when the stirring.
Therefore, a crystallization kettle for cooling magnesium sulfate, stirring uniformly and not blocking a discharge port is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the defect of prior art, provide a cooling stirring crystallization kettle for magnesium sulfate that cooling effect is good, the stirring, be difficult for blockking the discharge gate.
The utility model discloses a realize through following technical scheme: a cooling stirring crystallization kettle for magnesium sulfate comprises a speed reducer, a stirring shaft, a kettle body, a stirring assembly and a cooling assembly, wherein a feed inlet is formed in the top of the kettle body, a discharge outlet is formed in the bottom of the kettle body, one end of the stirring shaft is connected with the speed reducer, the other end of the stirring shaft extends into the kettle body, the stirring assembly comprises a stirring paddle and a spiral rotating shaft, the stirring paddle comprises a U-shaped stirring frame, a transverse separation frame and a longitudinal separation frame, the bottom of the U-shaped stirring frame is sleeved at the bottom of the stirring shaft and is fixedly connected with the stirring shaft, the transverse separation frame and the longitudinal separation frame are perpendicular to each other and are fixed in the U-shaped stirring frame through the stirring shaft, the spiral rotating shaft is inserted at the bottom of the stirring shaft and extends into the discharge outlet, the cooling assembly comprises a cooling jacket, an annular overflow groove and a drainage cover, the cooling jacket is sleeved outside the kettle body, the, the periphery of the annular overflow groove close to the inner wall of the kettle body is a liquid inlet, the drainage cover is inverted funnel-shaped and is arranged below the annular overflow groove and used for draining the material flowing out of the annular overflow groove to the position close to the inner wall of the kettle body to fall, and therefore material cooling is accelerated.
Further, the top of the kettle body is open.
Furthermore, a plurality of scraping plates are fixed on one side, close to the inner wall of the kettle body, of the U-shaped stirring frame, and the side, close to the inner wall of the kettle body, of each scraping plate is in a sawtooth shape.
Further, the drainage cover comprises an integrally formed cylindrical part and a conical body part, the cylindrical part is sleeved on the stirring shaft, and the outer wall of the conical body part inclines downwards and extends to a position close to the inner wall of the kettle body.
Further, a casing is arranged at the bottom of the speed reducer, a coupler is arranged in the casing, and the stirring shaft is connected with an output shaft of the speed reducer through the coupler.
Furthermore, the cooling jacket side wall is provided with a temperature measuring port, and the bottom of the inner shell of the machine shell is provided with a sealing element which is sleeved on the stirring shaft.
The utility model has the advantages that: the utility model discloses utilize annular overflow launder, drainage cover and cooling jacket to carry out rapid, the even cooling heat transfer to magnesium sulfate solution, rethread stirring rake and spiral pivot are assisted and are the cooling, prevent the caking simultaneously for seven water magnesium sulfate product textures are even, impurity is few and the ejection of compact is smooth when producing.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1. a speed reducer; 2. a stirring shaft; 3. a kettle body; 31. a feed inlet; 32. a discharge port; 41. a U-shaped stirring frame; 42. a transverse partition frame; 43. a longitudinal dividing frame; 44. a squeegee; 45. a helical shaft; 51. a cooling jacket; 511. a temperature measurement port; 512. cooling the water inlet; 513. a cooling water outlet; 52. an annular overflow trough; 521. a liquid inlet; 53. a drainage cover.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.
As shown in fig. 1, a cooling stirring crystallization kettle for magnesium sulfate comprises a speed reducer 1, a stirring shaft 2, a kettle body 3, a stirring assembly and a cooling assembly, wherein a casing is arranged at the bottom of the speed reducer 1, a coupler is arranged in the casing, the stirring shaft 2 is connected with an output shaft of the speed reducer 1 through the coupler, a temperature measuring port 511 is arranged on the side wall of a cooling jacket 51, a sealing element is arranged at the bottom of an inner casing of the casing and is sleeved on the stirring shaft 2, a feeding port 31 is arranged at the top of the kettle body 3, a discharging port 32 is arranged at the bottom of the kettle body 3, the top of the kettle body 3 is open and is convenient for heat dissipation, one end of the stirring shaft 2 is connected with the speed reducer 1, the other end of the stirring shaft extends into the kettle body 3, the stirring assembly comprises a stirring paddle and a spiral rotating shaft 45, the stirring paddle comprises a U-shaped stirring frame 41, a transverse separation frame, the horizontal separation frame 42 and the vertical separation frame are perpendicular to each other and are fixed in the U-shaped stirring frame 41 through the stirring shaft 2, one side of the U-shaped stirring frame 41 close to the inner wall of the kettle body 3 is fixedly provided with a plurality of scraping plates 44, one side of the scraping plates 44 close to the inner wall of the kettle body 3 is in a sawtooth shape, so that the bonding material on the inner wall of the kettle body 3 can be hung, the horizontal separation frame 42 is provided with a plurality of stirring shafts, the middle parts of the horizontal separation frame 42 are provided with through holes, the through holes are sleeved on the stirring shaft 2 and fixedly connected through screws or directly welded and fixed, the vertical separation frame is provided with 2 stirring shafts, the horizontal separation frame 42 and the U-shaped stirring frame 41 are symmetrically arranged along the stirring shaft 2 and fixedly welded and fixed with the horizontal separation frame 42, the spiral rotating shaft 45 is inserted and connected to the bottom of the stirring shaft 2 and extends into, The cooling device comprises an annular overflow groove 52 and a drainage cover 53, wherein the cooling jacket 51 is sleeved outside the kettle body 3, the annular overflow groove 52 is coaxially arranged with the kettle body 3 and is fixedly connected with the inner wall of the kettle body 3, the periphery of the annular overflow groove 52 close to the inner wall of the kettle body 3 is a liquid inlet 521, the drainage cover 53 is in an inverted funnel shape, the drainage cover 53 comprises an integrally formed cylindrical part and a cone part, the cylindrical part is sleeved on the stirring shaft 2, the bottom of the cooling jacket 51 is provided with a cooling water inlet 512 and the top of the cooling jacket is provided with a cooling water outlet 513, cooling water is injected from the cooling water inlet 512 and flows out from the cooling water outlet 513 to exchange heat with hot magnesium sulfate solution inside the kettle body 3, the outer wall of the cone part inclines downwards and extends to a position close to the inner wall of the kettle body 3, the drainage cover 53 is arranged below the annular overflow groove 52 and is used for draining materials flowing out of, so as to reduce the temperature of the magnesium sulfate solution in the kettle body 3 and rapidly cool the kettle body.
It should be noted that the top of the kettle 3 is open and is the feed inlet 31, and during production, the material can be directly fed to the overflow trough through the feed inlet 31, preferably, the material is fed by using the liquid inlet 521 of the overflow trough, so that the safety is higher.
The working principle is as follows: magnesium sulfate solution flows to a drainage cover 53 and slides downwards along the cone part of the drainage cover 53, so as to be injected into the kettle body 3 along the position close to the inner wall of the kettle body 3, as a cooling jacket 51 is sleeved on the outer wall of the kettle body 3 and flows downwards along the inner wall of the kettle body 3, the effects of temperature reduction and heat exchange can be rapidly achieved, and magnesium sulfate heptahydrate products are separated out, meanwhile, a stirring paddle drives a small part of magnesium sulfate solution and magnesium sulfate heptahydrate to be stirred, a U-shaped stirring frame 41 is stirred along the inner wall of the kettle body 3, a transverse separation frame 42 and a longitudinal separation frame 43 are stirred in a cross mode, so that the magnesium sulfate is prevented from being deposited at the bottom of the kettle body 3 to cause caking, in addition, spiral blades on a spiral rotating shaft 45 are used for stirring and discharging at a bottom discharge port 32 and stirring with a stirring shaft 2, and no additional power equipment is needed, and the bottom discharge hole 32 is effectively prevented from being blocked.
Compared with the prior art, the utility model discloses utilize annular overflow launder 52, drainage cover 53 and cooling jacket 51 to carry out rapid, the even cooling heat transfer to the magnesium sulfate solution, rethread stirring rake and spiral pivot 45 assist and are the cooling, prevent the caking simultaneously for seven water magnesium sulfate product textures are even, impurity is few and the ejection of compact is smooth when producing.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (6)
1. The utility model provides a cooling stirring crystallization kettle for magnesium sulfate, includes speed reducer, (mixing) shaft, the cauldron body, stirring subassembly and cooling module, cauldron body top has the feed inlet and its bottom has the discharge gate, it is internal that (mixing) shaft one end is connected with the speed reducer and its other end extends to the cauldron, characterized by: the stirring assembly comprises a stirring paddle and a spiral rotating shaft, the stirring paddle comprises a U-shaped stirring frame, a transverse separation frame and a longitudinal separation frame, the bottom of the U-shaped stirring frame is sleeved at the bottom of a stirring shaft and is fixedly connected with the stirring shaft, the transverse separation frame and the longitudinal separation frame are mutually perpendicular and are fixed in the U-shaped stirring frame through the stirring shaft, the spiral rotating shaft is inserted at the bottom of the stirring shaft and extends into a discharge port, the cooling assembly comprises a cooling jacket, an annular overflow groove and a drainage cover, the cooling jacket is sleeved outside a kettle body, the annular overflow groove is coaxially arranged with the kettle body and is fixedly connected with the inner wall of the kettle body, the periphery of the annular overflow groove close to the inner wall of the kettle body is a liquid inlet, the drainage cover is in an inverted funnel shape and is arranged below the annular overflow groove and is used for draining the material flowing out of the annular overflow groove to, thereby accelerating the cooling of the material.
2. The cooling stirring crystallization kettle for magnesium sulfate as set forth in claim 1, characterized in that: the top of the kettle body is open.
3. The cooling stirring crystallization kettle for magnesium sulfate as set forth in claim 1, characterized in that: one side of the U-shaped stirring frame, which is close to the inner wall of the kettle body, is fixedly provided with a plurality of scraping plates, and one side of the scraping plates, which is close to the inner wall of the kettle body, is in a zigzag shape.
4. The cooling stirring crystallization kettle for magnesium sulfate as set forth in claim 1, characterized in that: the drainage cover comprises a cylindrical part and a conical body part which are integrally formed, the cylindrical part is sleeved on the stirring shaft, and the outer wall of the conical body part inclines downwards and extends to a position close to the inner wall of the kettle body.
5. The cooling stirring crystallization kettle for magnesium sulfate as set forth in claim 1, characterized in that: the bottom of the speed reducer is provided with a casing, a coupler is arranged in the casing, and the stirring shaft is connected with an output shaft of the speed reducer through the coupler.
6. The cooling stirring crystallization kettle for magnesium sulfate as set forth in claim 1, characterized in that: the cooling jacket lateral wall is equipped with the temperature measurement mouth, and the casing inner shell bottom is equipped with sealing member and sealing member cup joints on the (mixing) shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020222501.5U CN212417053U (en) | 2020-02-27 | 2020-02-27 | Cooling, stirring and crystallizing kettle for magnesium sulfate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020222501.5U CN212417053U (en) | 2020-02-27 | 2020-02-27 | Cooling, stirring and crystallizing kettle for magnesium sulfate |
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| Publication Number | Publication Date |
|---|---|
| CN212417053U true CN212417053U (en) | 2021-01-29 |
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| CN202020222501.5U Active CN212417053U (en) | 2020-02-27 | 2020-02-27 | Cooling, stirring and crystallizing kettle for magnesium sulfate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116999882A (en) * | 2023-08-02 | 2023-11-07 | 邦丽达(福建)新材料股份有限公司 | A scraper type thin film distillation tower and acrylic acid deheavy component process |
| CN119034240A (en) * | 2024-10-28 | 2024-11-29 | 山西鸿生化工股份有限公司 | Crystallization equipment for producing solid sodium cyanide |
-
2020
- 2020-02-27 CN CN202020222501.5U patent/CN212417053U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116999882A (en) * | 2023-08-02 | 2023-11-07 | 邦丽达(福建)新材料股份有限公司 | A scraper type thin film distillation tower and acrylic acid deheavy component process |
| CN119034240A (en) * | 2024-10-28 | 2024-11-29 | 山西鸿生化工股份有限公司 | Crystallization equipment for producing solid sodium cyanide |
| CN119034240B (en) * | 2024-10-28 | 2025-02-07 | 山西鸿生化工股份有限公司 | A crystallization device for producing solid sodium cyanide |
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