Reaction equipment for potash fertilizer production
By designing a reaction equipment including a hot dissolution tank, a crystallization tank and a stirring device, the problem of difficulty in cleaning up the salt during the dissolution of potassium stone salt and the condensation water affects the dissolution saturation of potassium chloride is solved, efficient dissolution and crystallization are achieved, and the efficiency and quality of potassium fertilizer production are improved.
Patent Information
- Application Number
- CN202420679864.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-04-03
AI Technical Summary
The existing reaction equipment for potassium fertilizer production has problems in the process of dissolving potassium stone salts, and the condensation water affects the dissolution saturation of potassium chloride, resulting in a decrease in yield and quality.
A reaction device including a hot dissolution tank, a crystallization tank and a stirring device is designed. By setting a heating interlayer and a heating wire on the side wall of the hot dissolution tank for heating, the steam can be avoided from producing condensation water; a scraping blade is arranged in the stirring device to scrape and sweep the salt on the side wall of the hot dissolution chamber to maintain an effective dissolution volume.
It effectively prevents the accumulation of salts in the inner wall of the hot-soluble cavity, improves the dissolution efficiency and yield of potassium chloride in potassium stone salt, avoids condensation water affects the saturation of potassium chloride, and improves the efficiency and quality of potassium fertilizer production.
Smart Images
Figure CN222694734U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to reaction equipment for potash fertilizer production, in particular to the structure of the reaction equipment for potash fertilizer production. Background Art
[0002] In the process of crop growth, it is necessary to add a variety of fertilizers, and potash fertilizer is one of them. Potassium rock is the raw material for producing potassium chloride. Its main components are potassium chloride and sodium chloride. Potassium rock is first stirred and mixed with the dissolving solution (crystallization mother liquor) in a dissolving tank so that all the potassium chloride in the potassium rock is dissolved in the liquid phase, and sodium chloride exists in the solid phase. The liquid phase is cooled and crystallized to obtain potassium chloride.
[0003] The existing dissolving tank often only has a stirring function when dissolving and mixing sylvite. After long-term use, a large amount of salt will adhere to the inner wall of the reaction equipment, resulting in the inability of potassium chloride in the sylvite to fully dissolve into the liquid phase, which reduces the yield and quality of potassium chloride. It also causes the effective dissolving volume inside the dissolving tank to decrease, increases the stirring load, and leads to low dissolving efficiency. Since the reaction equipment is in a sealed state, it is extremely troublesome to clean the salt on the inner wall of the reaction equipment.
[0004] Moreover, the existing dissolution tank is usually heated by steam. When steam is passed into the dissolution tank, a large amount of condensed water will be generated in the internal cavity of the dissolution tank. The condensed water will mix into the slurry, which will reduce the saturation of potassium chloride when it is dissolved, and have an adverse effect on the production process.
[0005] In addition, the existing production equipment is large in size, complex in production equipment, occupies a large space, is inconvenient to operate and use, and is not conducive to the control of the production process.
[0006] The utility model aims to solve the problems that the salt on the inner wall of the existing dissolving tank is difficult to clean during potash fertilizer production, and the condensed water generated during heating affects the dissolution saturation of potassium chloride. Utility Model Content
[0007] In order to solve the above problems, the utility model provides a reaction device for potash fertilizer production, including a box 1, a hot melt tank 2, a crystallizer 3 and a stirring device 4. The box 1 is square and has a cavity formed inside. The hot melt tank 2 is fixedly arranged on the top of the box 1, and a feed port 21 and a liquid feeding port 22 are arranged on the top of the hot melt tank 2, an overflow port 23 is arranged on the side wall, and a discharge port 24 is arranged at the bottom, and a hot melt cavity 25 is formed inside. The feed port 21 is used to add potassium salt, and the liquid feeding port 22 is used to add a dissolving liquid. The crystallizer 3 is fixedly arranged in the box 1, and a feed port 31 is arranged on the crystallizer 3, and a discharge port 32 is arranged at the bottom, and a crystallization cavity 33 is formed inside. The feed port 31 is connected to the overflow port 23 through a feed pipe 34.
[0008] The stirring device 4 includes a stirring power device, a stirring rod 42, a dissolving stirring blade 43, a scraping blade 44 and a crystallizing stirring blade 45. The stirring power device is fixedly arranged on the top of the hot melt tank 2. The stirring rod 42 is vertically arranged, the upper end is fixedly connected to the stirring power device, and the lower end passes through the hot melt chamber 25 and extends into the crystallizing chamber 33. The dissolving stirring blade 43 is arranged in the hot melt chamber 25 and is fixedly connected to the stirring rod 42. The scraping blade 44 is vertically arranged in the hot melt chamber 25 and is fixedly connected to the stirring rod through a connecting rod 46. The outer side of the scraping blade 44 is in contact with the side wall of the hot melt chamber 25. The crystallizing stirring blade 45 is arranged in the crystallizing chamber 33 and is fixedly connected to the stirring rod 42.
[0009] When the utility model is used, potassium rock salt is added into the hot dissolving chamber 25 from the feeding port 21, and the dissolving liquid is added into the hot dissolving chamber 25 through the liquid feeding port 22, and the stirring power device is turned on, and the slurry in the hot dissolving chamber 25 is stirred by the dissolving stirring blade 43, and the crystals on the side wall of the hot dissolving chamber 25 are scraped by the sweeping blade 44. Under the heating condition, potassium chloride in potassium rock salt is quickly dissolved into the liquid phase, and other impurities such as sodium chloride are crystallized and precipitated at the bottom of the hot dissolving chamber 25, and are discharged from the discharge port 24 at a fixed time, and the slurry located at the upper layer of the hot dissolving chamber 25 is discharged from the overflow port 23 to obtain refined potassium mother liquor. Refined potassium mother liquor enters the crystallization tank 3 through the connecting pipe, and under the cooling condition, potassium chloride in the slurry is quickly crystallized, and under the stirring action of the crystallization stirring blade 45, potassium chloride crystal nuclei grow evenly, and are discharged from the discharge port 32 after the potassium chloride crystal nuclei grow to meet the requirements.
[0010] The utility model can dissolve potassium chloride in sylvite into a dissolving liquid to obtain a refined potassium mother liquor through a hot dissolving tank 2, and can crystallize potassium chloride in the refined potassium mother liquor through a crystallizing tank 3. The salt on the side wall of the hot dissolving chamber 25 can be scraped and swept through a scraping blade 44 to prevent the effective volume of the hot dissolving chamber 25 from being reduced, thereby improving the dissolving efficiency, allowing potassium chloride in sylvite to be fully dissolved in a liquid phase, and improving the yield of potassium chloride. The utility model has a simple structure and is easy to operate and use.
[0011] Preferably, a heating wire 26 is further included, and a heating interlayer 27 is provided on the side wall of the hot melt tank 2, and the heating wire 26 is fixedly provided in the heating interlayer 27. By providing the heating interlayer 27 on the side wall of the hot melt tank 2 and providing the heating wire 26 in the heating interlayer 27, the slurry in the hot melt cavity 25 can be heated, and there is no need to introduce steam into the hot melt cavity 25 for heating, so as to prevent the steam from generating condensed water in the hot melt cavity 25 to affect the saturation of potassium chloride when it is dissolved.
[0012] Preferably, a cooling interlayer 35 is provided on the side wall of the crystallization tank 3 , and a cooling inlet 36 and a cooling outlet 37 are provided on the cooling interlayer 35 .
[0013] By arranging a cooling interlayer 35 on the crystallization tank 3, a coolant can be added into the cooling interlayer 35 through the cooling inlet 36, and the slurry in the crystallization cavity 33 is cooled by the coolant to improve the crystallization efficiency. The coolant after heat exchange in the cooling interlayer 35 is discharged through the cooling outlet 37, so that the coolant is circulated to improve the cooling efficiency.
[0014] Preferably, a sampling tube 29 is provided at the bottom of the hot melt tank 2 , one end of the sampling tube 29 is connected to the hot melt cavity 25 , and the other end extends to the outside of the hot melt tank 2 . A sampling cover 291 is provided on the sampling tube 29 .
[0015] By arranging a sampling tube 29 at the bottom of the hot dissolving tank 2, the slurry in the hot dissolving chamber 25 can be sampled, so as to conveniently check the dissolution of sylvite and detect the content of potassium chloride in the slurry.
[0016] Preferably, it also includes a discharge pipe 28 and a discharge pipe 38, one end of the discharge pipe 28 is connected to the discharge port 24, and the other end passes through the box body 1 to extend to one side of the box body 1; one end of the discharge pipe 38 is connected to the discharge port 32, and the other end passes through the box body 1 to extend to the outside of the box body 1.
[0017] Preferably, a discharge valve 381 is provided on the discharge pipe 38, and a discharge valve 281 is provided on the discharge pipe 28. The discharge valve 381 can be used to control the discharge pipe 38 to discharge the crystal slurry in the crystallization chamber 33 at a fixed time, and the discharge valve 281 can be used to control the discharge pipe 28 to discharge the waste residue at the bottom of the hot melt chamber 25 at a fixed time.
[0018] Preferably, the stirring power device is a stirring motor 41 , and the upper end of the stirring rod 42 is fixedly connected to the rotating shaft of the stirring motor 41 .
[0019] Preferably, a box door 11 is provided on the side wall of the box body 1. By providing the box door 11 on the box body 1, it is convenient to inspect and repair the crystallization tank 3 inside the box body 1. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 . Schematic diagram of the external structure of the reaction equipment for potash fertilizer production;
[0021] Figure 2 . Schematic diagram of the cross-sectional structure of the reaction equipment for potash fertilizer production;
[0022] Figure 3 .Schematic diagram of the cross-section structure of the hot melt tank;
[0023] Figure 4 .Schematic diagram of the cross-sectional structure of the crystallization tank.
[0024] In the figure, 1. box body, 11. box door, 2. hot melt tank, 21. feeding port, 22. liquid feeding port, 23. overflow port, 24. discharge port, 25. hot melt cavity, 26. heating wire, 27. heating interlayer, 28. discharge pipe, 281. discharge valve, 29. sampling tube, 291. sampling cover, 3. crystallization tank, 31. feeding port, 32. discharge port, 33. crystallization cavity, 34. feeding pipe, 35. cooling interlayer, 36. cooling inlet, 37. cooling outlet, 38. discharge pipe, 381. discharge valve, 4. stirring device, 41. stirring motor, 42. stirring rod, 43. dissolving stirring blade, 44. scraping blade, 45. crystallization stirring blade, 46. connecting rod. DETAILED DESCRIPTION
[0025] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
[0026] like Figure 1 and Figure 2 As shown, the reaction equipment for potash fertilizer production includes a box body 1, a hot melt tank 2, a crystallization tank 3 and a stirring device 4. The box body 1 is square, and a box door 11 is provided on the side wall, and a cavity is formed inside. The box door 11 can be opened to facilitate the maintenance of the crystallization tank 3 inside the box body 1.
[0027] like Figure 2 and Figure 3 As shown, the hot melt tank 2 is fixedly arranged on the top of the box body 1, the top of the hot melt tank 2 is provided with a feeding port 21 and a liquid feeding port 22, the side wall is provided with an overflow port 23, the bottom is provided with a discharge port 24, and a hot melt cavity 25 is formed inside.
[0028] A heating interlayer 27 is provided on the side wall of the hot melt tank 2, and a heating wire 26 is provided in the heating interlayer 27. By providing the heating interlayer 27 on the side wall of the hot melt tank 2 and providing the heating wire 26 in the heating interlayer 27, the slurry in the hot melt cavity 25 can be heated, and there is no need to introduce steam into the hot melt cavity 25 for heating, so as to prevent the steam from generating condensed water in the hot melt cavity 25 to affect the saturation of potassium chloride when it is dissolved.
[0029] A sampling tube 29 is provided at the bottom of the side wall of the hot melt tank 2, one end of the sampling tube 29 is connected to the hot melt chamber 25, and the other end extends to the outside of the hot melt tank 2, and the end is sealed by a sampling cover 291, and the sampling cover 291 is connected to the sampling tube 29 by a thread. The sampling cover 291 is opened, and the slurry in the hot melt chamber 25 can be sampled through the sampling tube 29, which is convenient for checking the dissolution of sylvite and detecting the content of potassium chloride in the slurry.
[0030] The discharge port 24 is provided with a discharge pipe 28, which is inclined, one end of which is connected to the discharge port 24, and the other end of which passes through the box body 1 and extends to one side of the box body 1. The discharge pipe 28 is provided with a discharge valve 281. The discharge valve 281 can control the discharge pipe 28 to discharge the waste residue at the bottom of the hot melting chamber 25 at a fixed time.
[0031] The feeding port 21 is used for adding sylvite, and the liquid feeding port 22 is used for adding the dissolving liquid. After the sylvite and the dissolving liquid are added into the hot dissolving chamber 25, under heating conditions, the potassium chloride in the sylvite is rapidly dissolved into the liquid phase, and other impurities such as sodium chloride are crystallized and precipitated at the bottom of the hot dissolving chamber 25 and are discharged from the discharging port 24 at regular intervals. The slurry located at the upper layer of the hot dissolving chamber 25 is discharged from the overflow port 23 to obtain the refined potassium mother liquor.
[0032] like Figure 2 and Figure 4 As shown, the crystallization tank 3 is fixedly arranged in the housing 1 , a feed inlet 31 is arranged on the crystallization tank 3 , a discharge port 32 is arranged at the bottom, and a crystallization cavity 33 is formed inside.
[0033] The feed port 31 is connected to the overflow port 23 through the feed pipe 34. The refined potassium mother liquor enters the crystallization tank 3 through the connecting pipe. Under the cooling condition, the potassium chloride in the slurry is rapidly crystallized in the crystallization chamber 33 to form potassium chloride crystal nuclei, and the potassium chloride crystal nuclei are discharged from the discharge port 32 after growing to meet the requirements.
[0034] A cooling interlayer 35 is provided on the side wall of the crystallization tank 3, and a cooling inlet 36 and a cooling outlet 37 are provided on the cooling interlayer 35. The cooling inlet 36 and the cooling outlet 37 extend through the box body to the outside of the box body.
[0035] Cooling liquid can be added into the cooling interlayer 35 through the cooling inlet 36, and the slurry in the crystallization cavity 33 can be cooled by the cooling liquid to improve the crystallization efficiency. The cooling liquid after heat exchange in the cooling interlayer 35 can be discharged through the cooling outlet 37 to circulate the cooling liquid to improve the cooling efficiency.
[0036] A discharge pipe 38 is provided at the discharge port 32, one end of the discharge pipe 38 is connected to the discharge port 32, and the other end passes through the box body 1 and extends to the outside of the box body 1. A discharge valve 381 is provided on the discharge pipe 38. The discharge valve 381 can control the discharge pipe 38 to discharge the crystal slurry in the crystallization cavity 33 at a fixed time.
[0037] like Figure 2 As shown, the stirring device 4 includes a stirring power device, a stirring rod 42, a dissolving stirring blade 43, a scraping blade 44 and a crystallizing stirring blade 45. The stirring power device is a stirring motor 41, and the stirring motor 41 is fixedly arranged on the top of the hot melt tank 2. The stirring rod 42 is vertically arranged, and the upper end is fixedly connected to the rotating shaft of the stirring motor 41, and the lower end passes through the hot melt chamber 25 and extends into the crystallization chamber 33.
[0038] The dissolving and stirring blade 43 is disposed in the hot dissolving chamber 25 and fixedly connected to the stirring rod 42 for stirring the slurry in the hot dissolving chamber 25 to rapidly dissolve the potassium chloride in the sylvite.
[0039] The crystal stirring blade 45 is disposed in the crystallization chamber 33 and fixedly connected to the stirring rod 42 for stirring the slurry in the crystallization chamber 33 to make the potassium chloride crystal nuclei grow uniformly.
[0040] The scraping blade 44 is vertically arranged in the hot dissolving chamber 25, and is fixedly connected to the stirring rod through the connecting rod 46, and the outer side of the scraping blade 44 is in contact with the side wall of the hot dissolving chamber 25. The scraping blade 44 can scrape the salt on the side wall of the hot dissolving chamber 25 to prevent the effective volume of the hot dissolving chamber 25 from being reduced, improve the dissolution efficiency, make the potassium chloride in the sylvite fully dissolved in the liquid phase, and improve the yield of potassium chloride.
[0041] When the utility model is used, potassium rock salt is added into the hot dissolving chamber 25 from the feeding port 21, and the dissolving liquid is added into the hot dissolving chamber 25 through the liquid feeding port 22, and the stirring power device is turned on, and the slurry in the hot dissolving chamber 25 is stirred by the dissolving stirring blade 43, and the salt on the side wall of the hot dissolving chamber 25 is scraped by the scraping blade 44. Under the heating condition, potassium chloride in potassium rock salt is quickly dissolved into the liquid phase, and other impurities such as sodium chloride are crystallized and precipitated at the bottom of the hot dissolving chamber 25, and are discharged from the discharge port 24 at a fixed time, and the slurry located at the upper layer of the hot dissolving chamber 25 is discharged from the overflow port 23 to obtain refined potassium mother liquor. Refined potassium mother liquor enters the crystallization tank 3 through the connecting pipe, and under the cooling condition, potassium chloride in the slurry is quickly crystallized, and under the stirring action of the crystallization stirring blade 45, potassium chloride crystal nuclei grow evenly, and are discharged from the discharge port 32 after the potassium chloride crystal nuclei grow to meet the requirements.
[0042] The utility model can dissolve potassium chloride in sylvite in a dissolving solution to obtain a refined potassium mother liquor through a hot melt tank 2, and can crystallize potassium chloride in the refined potassium mother liquor through a crystallizer 3, and can scrape the salt on the side wall of the hot melt chamber 25 through a scraping blade 44, so as to prevent the effective volume of the hot melt chamber 25 from being reduced, improve the dissolution efficiency, make the potassium chloride in the sylvite fully dissolved in the liquid phase, and improve the yield of potassium chloride. The utility model has a simple structure and is easy to operate and use. By arranging a heating interlayer 27 on the side wall of the hot melt tank 2, and arranging a heating wire 26 in the heating interlayer 27, the slurry in the hot melt chamber 25 can be heated, and it is not necessary to pass steam into the hot melt chamber 25 for heating, so as to prevent the steam from generating condensed water in the hot melt chamber 25 and affecting the saturation when potassium chloride is dissolved.
[0043] By arranging a cooling interlayer 35 on the crystallization tank 3, a coolant can be added into the cooling interlayer 35 through the cooling inlet 36, and the slurry in the crystallization cavity 33 is cooled by the coolant to improve the crystallization efficiency, and the coolant after heat exchange in the cooling interlayer 35 is discharged through the cooling outlet 37, so that the coolant is circulated to improve the cooling efficiency. By arranging a sampling tube 29 at the bottom of the hot melt tank 2, the slurry in the hot melt cavity 25 can be sampled, which is convenient for checking the dissolution of sylvite and detecting the content of potassium chloride in the slurry.
[0044] It should be noted that the above-mentioned embodiments illustrate rather than limit the invention and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims.
Claims
1. A reaction device for potash fertilizer production, characterized in that: It comprises a housing (1), a hot melt tank (2), a crystallization tank (3) and a stirring device (4). The box body (1) is square and has a cavity formed inside; The hot melt tank (2) is fixedly arranged on the top of the box body (1), the top of the hot melt tank (2) is provided with a feeding port (21) and a liquid feeding port (22), the side wall is provided with an overflow port (23), the bottom is provided with a discharge port (24), and a hot melt cavity (25) is formed inside; The feed port (21) is used to add sylvite, and the liquid adding port (22) is used to add a dissolving liquid; The crystallization tank (3) is fixedly arranged in the housing (1), the crystallization tank (3) is provided with a feed inlet (31), a discharge outlet (32) is provided at the bottom, and a crystallization cavity (33) is formed inside; The feed port (31) is connected to the overflow port (23) via a feed pipe (34); The stirring device (4) comprises a stirring power device, a stirring rod (42), a dissolving stirring blade (43), a scraping blade (44) and a crystallizing stirring blade (45). The stirring power device is fixedly arranged on the top of the hot melt tank (2); The stirring rod (42) is arranged vertically, the upper end of which is fixedly connected to the stirring power device, and the lower end of which passes through the hot melting chamber (25) and extends into the crystallization chamber (33); The dissolving and stirring blade (43) is arranged in the hot dissolving chamber (25) and is fixedly connected to the stirring rod (42); The scraping blade (44) is vertically arranged in the hot melt chamber (25), and is fixedly connected to the stirring rod (42) via a connecting rod (46), and the outer side surface of the scraping blade (44) is in contact with the side wall of the hot melt chamber (25); The crystallization stirring blade (45) is arranged in the crystallization chamber (33) and is fixedly connected to the stirring rod (42).
2. The reaction equipment for potash fertilizer production according to claim 1, characterized in that: Also includes a heating wire (26), A heating interlayer (27) is provided on the side wall of the hot melt tank (2); The heating wire (26) is fixedly arranged in the heating interlayer (27).
3. The reaction equipment for potash fertilizer production according to claim 2, characterized in that: The side wall of the crystallization tank (3) is provided with a cooling interlayer (35). The cooling interlayer (35) is provided with a cooling inlet (36) and a cooling outlet (37).
4. The reaction equipment for potash fertilizer production according to claim 3, characterized in that: A sampling tube (29) is provided at the bottom of the hot melt tank (2). One end of the sampling tube (29) is in communication with the hot melt chamber (25), and the other end extends to the outside of the hot melt tank (2). A sampling cover (291) is provided on the sampling tube (29).
5. The reaction equipment for potash fertilizer production according to claim 4, characterized in that: It also includes a discharge pipe (28) and a discharge pipe (38), One end of the discharge pipe (28) is in communication with the discharge port (24), and the other end thereof passes through the box body (1) and extends to one side of the box body (1); One end of the discharge pipe (38) is in communication with the discharge port (32), and the other end thereof passes through the box body (1) and extends to the outside of the box body (1).
6. The reaction equipment for potash fertilizer production according to claim 5, characterized in that: The discharge pipe (38) is provided with a discharge valve (381). The discharge pipe (28) is provided with a discharge valve (281).
7. The reaction equipment for potash fertilizer production according to claim 6, characterized in that: The stirring power device is a stirring motor (41), The upper end of the stirring rod (42) is fixedly connected to the rotating shaft of the stirring motor (41).
8. The reaction equipment for potash fertilizer production according to any one of claims 1 to 7, characterized in that: A box door (11) is provided on the side wall of the box body (1).