Device for producing inositol and monopotassium phosphate by using corn soaking water

Abstract

The utility model discloses a device for producing inositol and monopotassium phosphate by using corn soaking water, and relates to the technical field of corn soaking water reutilization. An outlet of a cation exchange resin column is respectively communicated with an effluent tank and a desorption solution tank; an inlet of the effluent liquid tank is communicated with a lime milk tank, the effluent liquid tank is communicated with a hydrolysis tank, an outlet of the hydrolysis tank is communicated with a reaction tank, an inlet of the reaction tank is respectively communicated with the desorption liquid tank and the neutralizer tank, an outlet of the reaction tank is communicated with a second filter, and a filtrate outlet of the second filter is communicated with a mixed liquid tank; an outlet of the mixed liquid tank is communicated with a simulated moving bed, an organic phase outlet of the simulated moving bed is communicated with an inositol solution tank, and a water phase outlet of the simulated moving bed is communicated with a monopotassium phosphate solution tank. The obtained sylvite can be subjected to double decomposition reaction with the calcium phytate hydrolysate, outsourced sylvite is reduced, the production cost is further reduced, in addition, high-temperature incineration for removing organic impurities is not needed, the cost is saved, and the method is environment-friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of corn soaking water reuse, in particular to a device for producing inositol and potassium dihydrogen phosphate by utilizing corn soaking water. Background Art

[0002] Corn soaking water is a waste product produced during the wet production of corn starch, which contains 1-2% phytic acid. The process of recovering phytic acid from corn soaking water, preparing calcium phytate, and then producing inositol and tricalcium phosphate through hydrolysis, neutralization filtration, concentration, crystallization and other processes is relatively mature. Tricalcium phosphate is mainly used as a feed additive. Due to its poor solubility and low bioavailability, its sales price is relatively low; and the production process of tricalcium phosphate usually requires high-temperature incineration to remove organic impurities, which has a greater impact on the environment. Summary of the invention

[0003] The technical problem to be solved by the utility model is: in view of the deficiencies in the prior art, a device for producing inositol and potassium dihydrogen phosphate by using corn soaking water is provided, so as to increase the added value of the product, reduce environmental pollution and reduce energy consumption.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A device for producing inositol and potassium dihydrogen phosphate using corn soaking water, comprising a cation exchange resin column connected to a corn soaking water tank, an inlet of the cation exchange resin column connected to a sulfuric acid solution tank, and an outlet of the cation exchange resin column connected to an outflow liquid tank and a decomposition liquid tank through pipelines;

[0006] The inlet of the effluent tank is connected to a lime milk tank through a pipeline, the outlet of the effluent tank is connected to a first filter through a pipeline, the filter residue outlet of the first filter is connected to a hydrolysis tank, the outlet of the hydrolysis tank is connected to a reaction tank through a pipeline, the inlet of the reaction tank is connected to the analytical liquid tank and the neutralizer tank through pipelines, respectively, the outlet of the reaction tank is connected to a second filter through a pipeline, and the filtrate outlet of the second filter is connected to a mixed liquid tank through a pipeline;

[0007] The outlet of the mixed liquid tank is connected to a simulated moving bed through a pipeline, the organic phase outlet of the simulated moving bed is connected to an inositol solution tank, and the water phase outlet of the simulated moving bed is connected to a potassium dihydrogen phosphate solution tank.

[0008] As an improved technical solution, the filtrate outlet of the first filter is connected to a temporary storage tank through a pipeline;

[0009] The filter residue outlet of the second filter is connected to a gypsum tank.

[0010] As an improved technical solution, the outlet of the potassium dihydrogen phosphate solution tank is connected to a first concentration tank through a pipeline, the outlet of the first concentration tank is connected to a first crystallization tank through a pipeline, the outlet of the first crystallization tank is connected to a first centrifuge through a pipeline, the solid phase outlet of the first centrifuge is connected to a first dryer, and the outlet of the first dryer is connected to a potassium dihydrogen phosphate finished product tank.

[0011] As an improved technical solution, the inlet of the first concentration tank is connected to the first activated carbon tank through a pipeline, the outlet of the first concentration tank is connected to the third filter through a pipeline, and the liquid phase outlet of the third filter is connected to the first crystallization tank through a pipeline.

[0012] As an improved technical solution, the liquid phase outlet of the first centrifuge is connected to the first mother liquid tank through a pipeline, and the outlet of the first mother liquid tank is connected to the inlet of the first concentration tank through a pipeline.

[0013] As an improved technical solution, the outlet of the inositol solution tank is connected to a second concentrating tank through a pipeline, the outlet of the second concentrating tank is connected to a second crystallizing tank through a pipeline, the outlet of the second crystallizing tank is connected to a second centrifuge through a pipeline, the solid phase outlet of the second centrifuge is connected to an inositol crude product tank, the outlet of the inositol crude product tank is connected to a decolorizing tank through a pipeline, the inlet of the decolorizing tank is connected to a second activated carbon tank, the outlet of the decolorizing tank is connected to a fourth filter, the liquid phase outlet of the fourth filter is connected to a third crystallizing tank, the outlet of the third crystallizing tank is connected to a third centrifuge, the solid phase outlet of the third centrifuge is connected to a second dryer, and the outlet of the second dryer is connected to an inositol product tank.

[0014] As a preferred technical solution, the liquid phase outlet of the second centrifuge is connected to a second mother liquid tank, and the outlet of the second mother liquid tank is connected to the inlet of the simulated moving bed through a pipeline.

[0015] As a preferred technical solution, the liquid phase outlet of the third centrifuge is connected to a third mother liquid tank, and the outlet of the third mother liquid tank is connected to the second concentration tank through a pipeline.

[0016] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0017] The utility model discloses a device for producing inositol and potassium dihydrogen phosphate by using corn soaking water, comprising a cation exchange resin column connected with a corn soaking water tank, an inlet of the cation exchange resin column connected with a sulfuric acid solution tank, and an outlet of the cation exchange resin column connected with an outflowing liquid tank and an analytical liquid tank respectively through pipelines; the inlet of the outflowing liquid tank is connected with a lime milk tank through a pipeline, the outlet of the outflowing liquid tank is connected with a first filter through a pipeline, the filter residue outlet of the first filter is connected with a hydrolysis tank, the outlet of the hydrolysis tank is connected to a reaction tank through a pipeline, the inlet of the reaction tank is connected to the analytical liquid tank and a neutralizer tank respectively through pipelines, the outlet of the reaction tank is connected with a second filter through a pipeline, and the filtrate outlet of the second filter is connected with a mixed liquid tank through a pipeline; the outlet of the mixed liquid tank is connected with a simulated moving bed through a pipeline, the organic phase outlet of the simulated moving bed is connected with an inositol solution tank, and the water phase outlet of the simulated moving bed is connected with a potassium dihydrogen phosphate solution tank. The cation exchange resin column adsorbs potassium ions in the corn soaking water, and lime milk is added to the effluent to obtain calcium phytate precipitation after neutralization. Then, the hydrolyzate of calcium phytate undergoes a double decomposition reaction with the potassium salt in the analytical solution and the neutralizer to generate calcium sulfate precipitation and potassium dihydrogen phosphate. The solubility of calcium sulfate is extremely low and is removed by filtration to finally obtain a mixed solution containing inositol and potassium dihydrogen phosphate. The cation exchange resin column can efficiently adsorb potassium ions in the corn soaking water, and then analyze it with sulfuric acid solution. The obtained potassium salt can undergo a double decomposition reaction with the calcium phytate hydrolyzate, reducing the purchase of potassium salt and further reducing production costs. In addition, high-temperature incineration is not required to remove organic impurities, saving costs and being environmentally friendly.

[0018] The filtrate outlet of the first filter of the utility model is connected to a temporary storage tank through a pipeline, and the filter residue outlet of the second filter is connected to a gypsum tank. The material in the temporary storage tank can be used to produce corn protein powder and connected to the by-product gypsum, which greatly improves the economic benefits of the process.

[0019] The outlet of the potassium dihydrogen phosphate solution tank is connected to the first concentration tank through a pipeline, the outlet of the first concentration tank is connected to the first crystallization tank through a pipeline, the outlet of the first crystallization tank is connected to the first centrifuge through a pipeline, the solid phase outlet of the first centrifuge is connected to the first dryer, and the outlet of the first dryer is connected to the potassium dihydrogen phosphate finished product tank. The purity of the product is improved by concentrating, crystallizing, centrifuging and drying the potassium dihydrogen phosphate solution.

[0020] The inlet of the first concentration tank is connected to the first activated carbon tank through a pipeline, the outlet of the first concentration tank is connected to the third filter through a pipeline, and the liquid phase outlet of the third filter is connected to the first crystallization tank through a pipeline. By decolorizing the concentrated liquid, the chromaticity of the product is good, and the quality of the potassium dihydrogen phosphate product is improved.

[0021] The liquid phase outlet of the first centrifuge is connected to the first mother liquid tank through a pipeline, and the outlet of the first mother liquid tank is connected to the inlet of the first concentration tank through a pipeline. By recycling the potassium dihydrogen phosphate crystallization mother liquid, the yield of the product is improved and the economic benefit is increased.

[0022] The outlet of the inositol solution tank is connected to the second concentration tank through a pipeline, the outlet of the second concentration tank is connected to the second crystallization tank through a pipeline, the outlet of the second crystallization tank is connected to the second centrifuge through a pipeline, the solid phase outlet of the second centrifuge is connected to the crude inositol tank, the outlet of the crude inositol tank is connected to the decolorization tank through a pipeline, the inlet of the decolorization tank is connected to the second activated carbon tank, the outlet of the decolorization tank is connected to the fourth filter, the liquid phase outlet of the fourth filter is connected to the third crystallization tank, the outlet of the third crystallization tank is connected to the third centrifuge, the solid phase outlet of the third centrifuge is connected to the second dryer, and the outlet of the second dryer is connected to the inositol product tank. By concentrating, crystallizing and centrifuging the inositol solution, and then decolorizing, recrystallizing, centrifuging and drying the obtained crude product, a high-purity inositol product is finally obtained, and the quality of the product is high.

[0023] The liquid phase outlet of the second centrifuge is connected to the second mother liquid tank, and the outlet of the second mother liquid tank is connected to the inlet of the simulated moving bed through a pipeline. The liquid phase outlet of the third centrifuge is connected to the third mother liquid tank, and the outlet of the third mother liquid tank is connected to the second concentration tank through a pipeline. The inositol centrifuge mother liquor after crystallization and recrystallization is recycled to improve the yield of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0026] Figure 2 It is a structural schematic diagram of Embodiment 2 of the present utility model;

[0027] Figure 3 It is a structural schematic diagram of Embodiment 3 of the present utility model;

[0028] Among them: 1. Corn soaking water tank; 2. Cationic exchange resin column; 3. Sulfuric acid solution tank; 4. Outflow tank; 5. Analysis tank; 6. Lime milk tank; 7. First filter; 8. Reaction tank; 9. Neutralizer tank; 10. Second filter; 11. Mixed liquid tank; 12. Simulated moving bed; 13. Inositol solution tank; 14. Potassium dihydrogen phosphate solution tank; 15. Gypsum tank; 16. First concentration tank; 17. First crystallization tank; 18. First centrifuge; 19. First dryer; 20. Potassium dihydrogen phosphate finished product tank; 21. first activated carbon tank; 22. third filter; 23. first mother liquor tank; 24. second concentration tank; 25. second crystallization tank; 26. second centrifuge; 27. inositol crude product tank; 28. decolorization tank; 29. ​​second activated carbon tank; 30. fourth filter; 31. third crystallization tank; 32. third centrifuge; 33. second dryer; 34. inositol product tank; 35. second mother liquor tank; 36. third mother liquor tank; 37. temporary storage tank; 38. hydrolysis tank. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0030] Example 1

[0031] like Figure 1As shown, a device for producing inositol and potassium dihydrogen phosphate using corn soaking water comprises a cation exchange resin column 2 connected to a corn soaking water tank 1, the inlet of the cation exchange resin column 2 is connected to a sulfuric acid solution tank 3, and the outlet of the cation exchange resin column 2 is connected to an outflow tank 4 and an analytical liquid tank 5 through pipelines respectively; the inlet of the outflow tank 4 is connected to a lime milk tank 6 through a pipeline, the outlet of the outflow tank 4 is connected to a first filter 7 through a pipeline, the filter residue outlet of the first filter 7 is connected to a hydrolysis tank 38, and the hydrolysis tank 5 is connected to the outlet of the first filter 7. The outlet of the tank 38 is connected to the reaction tank 8 through a pipeline, and the inlet of the reaction tank 8 is connected to the analytical solution tank 5 and the neutralizer tank 9 through pipelines, respectively. The outlet of the reaction tank 8 is connected to the second filter 10 through a pipeline, and the filtrate outlet of the second filter 10 is connected to the mixed liquid tank 11 through a pipeline; the outlet of the mixed liquid tank 11 is connected to the simulated moving bed 12 through a pipeline, and the organic phase outlet of the simulated moving bed 12 is connected to the inositol solution tank 13, and the water phase outlet of the simulated moving bed 12 is connected to the potassium dihydrogen phosphate solution tank 14. The cation exchange resin column 2 adsorbs potassium ions in the corn soaking water, and the effluent is added with lime milk, and calcium phytate precipitation is obtained after neutralization, and then the hydrolyzate of calcium phytate reacts with the potassium salt in the analytical solution and the neutralizer to generate calcium sulfate precipitation and potassium dihydrogen phosphate. The solubility of calcium sulfate is extremely low, and it is removed by filtration, and finally a mixed solution containing inositol and potassium dihydrogen phosphate is obtained. The cation exchange resin column 2 can be used to efficiently adsorb potassium ions in corn soaking water, and then analyzed with sulfuric acid solution. The obtained potassium salt can undergo a double decomposition reaction with the hydrolyzate of calcium phytate, thereby reducing the purchase of potassium salt and further reducing production costs. In addition, high-temperature incineration is not required to remove organic impurities, which saves costs and is environmentally friendly.

[0032] The filtrate outlet of the first filter 7 is connected to the temporary storage tank 37 through a pipeline, and the filter residue outlet of the second filter 10 is connected to the gypsum tank 15. The material in the temporary storage tank 37 can be used to produce corn protein powder and connected to the by-product gypsum, which greatly improves the economic benefits of the process.

[0033] Example 2

[0034] like Figure 1 and 2As shown, a device for producing inositol and potassium dihydrogen phosphate using corn soaking water comprises a cation exchange resin column 2 connected to a corn soaking water tank 1, the inlet of the cation exchange resin column 2 is connected to a sulfuric acid solution tank 3, and the outlet of the cation exchange resin column 2 is connected to an outflow tank 4 and an analytical liquid tank 5 through pipelines respectively; the inlet of the outflow tank 4 is connected to a lime milk tank 6 through a pipeline, the outlet of the outflow tank 4 is connected to a first filter 7 through a pipeline, the filter residue outlet of the first filter 7 is connected to a hydrolysis tank 38, and the hydrolysis tank 5 is connected to the outlet of the first filter 7. The outlet of the tank 38 is connected to the reaction tank 8 through a pipeline, and the inlet of the reaction tank 8 is connected to the analytical solution tank 5 and the neutralizer tank 9 through pipelines, respectively. The outlet of the reaction tank 8 is connected to the second filter 10 through a pipeline, and the filtrate outlet of the second filter 10 is connected to the mixed liquid tank 11 through a pipeline; the outlet of the mixed liquid tank 11 is connected to the simulated moving bed 12 through a pipeline, and the organic phase outlet of the simulated moving bed 12 is connected to the inositol solution tank 13, and the water phase outlet of the simulated moving bed 12 is connected to the potassium dihydrogen phosphate solution tank 14. The cation exchange resin column 2 adsorbs potassium ions in the corn soaking water, and the effluent is added with lime milk, and calcium phytate precipitation is obtained after neutralization, and then the hydrolyzate of calcium phytate reacts with the potassium salt in the analytical solution and the neutralizer to generate calcium sulfate precipitation and potassium dihydrogen phosphate. The solubility of calcium sulfate is extremely low, and it is removed by filtration, and finally a mixed solution containing inositol and potassium dihydrogen phosphate is obtained. The cation exchange resin column 2 can be used to efficiently adsorb potassium ions in corn soaking water, and then analyzed with sulfuric acid solution. The obtained potassium salt can undergo a double decomposition reaction with the hydrolyzate of calcium phytate, thereby reducing the purchase of potassium salt and further reducing production costs. In addition, high-temperature incineration is not required to remove organic impurities, which saves costs and is environmentally friendly.

[0035] The filtrate outlet of the first filter 7 is connected to the temporary storage tank 37 through a pipeline, and the filter residue outlet of the second filter 10 is connected to the gypsum tank 15. The material in the temporary storage tank 37 can be used to produce corn protein powder and connected to the by-product gypsum, which greatly improves the economic benefits of the process.

[0036] The outlet of the potassium dihydrogen phosphate solution tank 14 is connected to a first concentration tank 16 through a pipeline, the outlet of the first concentration tank 16 is connected to a first crystallization tank 17 through a pipeline, the outlet of the first crystallization tank 17 is connected to a first centrifuge 18 through a pipeline, the solid phase outlet of the first centrifuge 18 is connected to a first dryer 19, and the outlet of the first dryer 19 is connected to a potassium dihydrogen phosphate finished product tank 20. The purity of the product is improved by concentrating, crystallizing, centrifuging and drying the potassium dihydrogen phosphate solution.

[0037] The inlet of the first concentration tank 16 is connected to the first activated carbon tank 21 through a pipeline, the outlet of the first concentration tank 16 is connected to the third filter 22 through a pipeline, and the liquid phase outlet of the third filter 22 is connected to the first crystallization tank 17 through a pipeline. By decolorizing the concentrated liquid, the chromaticity of the product is good, and the quality of the potassium dihydrogen phosphate product is improved.

[0038] The liquid phase outlet of the first centrifuge 18 is connected to the first mother liquid tank 23 through a pipeline, and the outlet of the first mother liquid tank 23 is connected to the inlet of the first concentration tank 16 through a pipeline. By recycling the potassium dihydrogen phosphate crystallization mother liquid, the yield of the product is improved and the economic benefit is increased.

[0039] Example 3

[0040] like Figure 1 and 3 As shown, a device for producing inositol and potassium dihydrogen phosphate using corn soaking water comprises a cation exchange resin column 2 connected to a corn soaking water tank 1, the inlet of the cation exchange resin column 2 is connected to a sulfuric acid solution tank 3, and the outlet of the cation exchange resin column 2 is connected to an outflow tank 4 and an analytical liquid tank 5 through pipelines respectively; the inlet of the outflow tank 4 is connected to a lime milk tank 6 through a pipeline, the outlet of the outflow tank 4 is connected to a first filter 7 through a pipeline, the filter residue outlet of the first filter 7 is connected to a hydrolysis tank 38, and the hydrolysis tank 5 is connected to the outlet of the first filter 7. The outlet of the tank 38 is connected to the reaction tank 8 through a pipeline, and the inlet of the reaction tank 8 is connected to the analytical solution tank 5 and the neutralizer tank 9 through pipelines, respectively. The outlet of the reaction tank 8 is connected to the second filter 10 through a pipeline, and the filtrate outlet of the second filter 10 is connected to the mixed liquid tank 11 through a pipeline; the outlet of the mixed liquid tank 11 is connected to the simulated moving bed 12 through a pipeline, and the organic phase outlet of the simulated moving bed 12 is connected to the inositol solution tank 13, and the water phase outlet of the simulated moving bed 12 is connected to the potassium dihydrogen phosphate solution tank 14. The cation exchange resin column 2 adsorbs potassium ions in the corn soaking water, and the effluent is added with lime milk, and calcium phytate precipitation is obtained after neutralization, and then the hydrolyzate of calcium phytate reacts with the potassium salt in the analytical solution and the neutralizer to generate calcium sulfate precipitation and potassium dihydrogen phosphate. The solubility of calcium sulfate is extremely low, and it is removed by filtration, and finally a mixed solution containing inositol and potassium dihydrogen phosphate is obtained. The cation exchange resin column 2 can be used to efficiently adsorb potassium ions in corn soaking water, and then analyzed with sulfuric acid solution. The obtained potassium salt can undergo a double decomposition reaction with the hydrolyzate of calcium phytate, thereby reducing the purchase of potassium salt and further reducing production costs. In addition, high-temperature incineration is not required to remove organic impurities, which saves costs and is environmentally friendly.

[0041] The filtrate outlet of the first filter 7 is connected to the temporary storage tank 37 through a pipeline, and the filter residue outlet of the second filter 10 is connected to the gypsum tank 15. The material in the temporary storage tank 37 can be used to produce corn protein powder and connected to the by-product gypsum, which greatly improves the economic benefits of the process.

[0042] The outlet of the inositol solution tank 13 is connected to the second concentration tank 24 through a pipeline, the outlet of the second concentration tank 24 is connected to the second crystallization tank 25 through a pipeline, the outlet of the second crystallization tank 25 is connected to the second centrifuge 26 through a pipeline, the solid phase outlet of the second centrifuge 26 is connected to the inositol crude product tank 27, the outlet of the inositol crude product tank 27 is connected to the decolorization tank 28 through a pipeline, the inlet of the decolorization tank 28 is connected to the second activated carbon tank 29, the outlet of the decolorization tank 28 is connected to the fourth filter 30, the liquid phase outlet of the fourth filter 30 is connected to the third crystallization tank 31, the outlet of the third crystallization tank 31 is connected to the third centrifuge 32, the solid phase outlet of the third centrifuge 32 is connected to the second dryer 33, and the outlet of the second dryer 33 is connected to the inositol product tank 34. By concentrating, crystallizing and centrifuging the inositol solution, and then decolorizing, recrystallizing, centrifuging and drying the obtained crude product, a high-purity inositol product is finally obtained, and the product quality is high.

[0043] The liquid phase outlet of the second centrifuge 26 is connected to the second mother liquid tank 35, and the outlet of the second mother liquid tank 35 is connected to the inlet of the simulated moving bed 12 through a pipeline. The liquid phase outlet of the third centrifuge 32 is connected to the third mother liquid tank 36, and the outlet of the third mother liquid tank 36 is connected to the second concentration tank 24 through a pipeline. The inositol centrifuge mother liquor after crystallization and recrystallization is recycled to improve the yield of the product.

[0044] It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A device for producing inositol and potassium dihydrogen phosphate using corn soaking water, characterized in that: It comprises a cation exchange resin column connected to a corn soaking water tank, wherein the inlet of the cation exchange resin column is connected to a sulfuric acid solution tank, and the outlet of the cation exchange resin column is connected to an outflow liquid tank and a decomposition liquid tank through pipelines respectively; The inlet of the effluent tank is connected to a lime milk tank through a pipeline, the outlet of the effluent tank is connected to a first filter through a pipeline, the filter residue outlet of the first filter is connected to a hydrolysis tank, the outlet of the hydrolysis tank is connected to a reaction tank through a pipeline, the inlet of the reaction tank is connected to the analytical liquid tank and the neutralizer tank through pipelines, respectively, the outlet of the reaction tank is connected to a second filter through a pipeline, and the filtrate outlet of the second filter is connected to a mixed liquid tank through a pipeline; The outlet of the mixed liquid tank is connected to a simulated moving bed through a pipeline, the organic phase outlet of the simulated moving bed is connected to an inositol solution tank, and the water phase outlet of the simulated moving bed is connected to a potassium dihydrogen phosphate solution tank.

2. A device for producing inositol and potassium dihydrogen phosphate using corn soaking water as claimed in claim 1, characterized in that: The filtrate outlet of the first filter is connected to a temporary storage tank through a pipeline; The filter residue outlet of the second filter is connected to a gypsum tank.

3. A device for producing inositol and potassium dihydrogen phosphate using corn soaking water as claimed in claim 1, characterized in that: The outlet of the potassium dihydrogen phosphate solution tank is connected to a first concentration tank through a pipeline, the outlet of the first concentration tank is connected to a first crystallization tank through a pipeline, the outlet of the first crystallization tank is connected to a first centrifuge through a pipeline, the solid phase outlet of the first centrifuge is connected to a first dryer, and the outlet of the first dryer is connected to a potassium dihydrogen phosphate finished product tank.

4. A device for producing inositol and potassium dihydrogen phosphate using corn soaking water as claimed in claim 3, characterized in that: The inlet of the first concentration tank is connected to the first activated carbon tank through a pipeline, the outlet of the first concentration tank is connected to the third filter through a pipeline, and the liquid phase outlet of the third filter is connected to the first crystallization tank through a pipeline.

5. A device for producing inositol and potassium dihydrogen phosphate using corn soaking water as claimed in claim 3, characterized in that: The liquid phase outlet of the first centrifuge is connected to the first mother liquid tank through a pipeline, and the outlet of the first mother liquid tank is connected to the inlet of the first concentration tank through a pipeline.

6. A device for producing inositol and potassium dihydrogen phosphate using corn soaking water as claimed in claim 1, characterized in that: The outlet of the inositol solution tank is connected to the second concentration tank through a pipeline, the outlet of the second concentration tank is connected to the second crystallization tank through a pipeline, the outlet of the second crystallization tank is connected to the second centrifuge through a pipeline, the solid phase outlet of the second centrifuge is connected to the crude inositol tank, the outlet of the crude inositol tank is connected to the decolorization tank through a pipeline, the inlet of the decolorization tank is connected to the second activated carbon tank, the outlet of the decolorization tank is connected to the fourth filter, the liquid phase outlet of the fourth filter is connected to the third crystallization tank, the outlet of the third crystallization tank is connected to the third centrifuge, the solid phase outlet of the third centrifuge is connected to the second dryer, and the outlet of the second dryer is connected to the inositol product tank.

7. A device for producing inositol and potassium dihydrogen phosphate using corn soaking water as claimed in claim 6, characterized in that: The liquid phase outlet of the second centrifuge is connected to a second mother liquid tank, and the outlet of the second mother liquid tank is connected to the inlet of the simulated moving bed through a pipeline.

8. A device for producing inositol and potassium dihydrogen phosphate using corn soaking water as claimed in claim 6, characterized in that: The liquid phase outlet of the third centrifuge is connected to a third mother liquid tank, and the outlet of the third mother liquid tank is connected to the second concentration tank through a pipeline.

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