A high-purity manganese sulfate high-temperature and high-pressure crystallization device and method

Abstract

The invention discloses a high-purity manganese sulfate high-temperature and high-pressure crystallization device and method, belonging to the technical field of manganese sulfate crystallization devices. The high-purity manganese sulfate high-temperature and high-pressure crystallization device and method comprise a mounting bracket. By providing a structure with spiral blades, the problem of blocked crystallization caused by too low flow rate of manganese sulfate solution inside a pipeline or oversaturation of the solution due to partial blockage can be effectively solved. Meanwhile, a ventilation groove is provided inside the spiral blades, and a high-pressure air pump can continuously send external air into the ventilation grooves, thereby effectively solving the crystallization problem caused by oversaturation of manganese sulfate raw material concentration, too high temperature or low internal manganese sulfate flow rate. By providing a structure with a cleaning box, the manganese sulfate dilution solution can be circulated in the main pipeline and the cleaning box through the rotation of the spiral blades, and the main pipeline can be cleaned and maintained without disassembly, thereby achieving the effect of quickly cleaning and maintaining the main pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of manganese sulfate crystallization devices, and more specifically, to a high-purity manganese sulfate high-temperature and high-pressure crystallization device and method. Background Art

[0002] The manganese sulfate high temperature crystallization device is mainly used to crystallize manganese sulfate from sulfuric acid solution containing manganese. It is an important process link in the production of manganese sulfate. Its function is to crystallize the manganese ions dissolved in sulfuric acid into solid manganese sulfate crystals through a high temperature crystallization process, realize the conversion from solution to solid, and facilitate subsequent separation and purification. In the preparation process, first, the raw material containing manganese (such as manganese oxide ore) is reacted with sulfuric acid to generate a manganese sulfate solution. This step is usually completed in a reactor or a reaction tank, and then the manganese sulfate solution is separated from the solid by a filter. The manganese sulfate solution is heated to a specific temperature in the crystallization device. The manganese sulfate in the solution gradually becomes saturated as the temperature rises, the solubility decreases, and manganese sulfate begins to crystallize. This step requires controlling the temperature and crystallization rate to obtain manganese sulfate crystals of ideal size and purity. After crystallization, the manganese sulfate crystals are finally separated from the residual solution using a device to obtain a dry manganese sulfate product.

[0003] Due to the high-temperature crystallization process of manganese sulfate, the raw materials need to be transferred in multiple devices. Since manganese sulfate will crystallize at high temperature, during the transfer process of manganese sulfate, if the concentration is oversaturated, the temperature is too high, or the internal manganese sulfate flow rate is low, it is easy to crystallize on the inner wall of the pipeline in advance, reducing the overall flow of manganese sulfate and affecting the reaction rate of manganese sulfate in subsequent devices. At the same time, after a period of use, some crystals will inevitably appear inside the pipeline, and the pipeline needs to be disassembled, cleaned and maintained. Summary of the invention

[0004] The object of the present invention is to provide a high-purity manganese sulfate high-temperature and high-pressure crystallization device and method to solve the problems raised in the above background technology.

[0005] A high-purity manganese sulfate high-temperature and high-pressure crystallization device and method, comprising a mounting bracket, a first high-pressure crystallization cylinder is fixedly installed in the middle of the mounting bracket by bolts, a second high-pressure crystallization cylinder is fixedly installed in the mounting bracket on one side of the first high-pressure crystallization cylinder by bolts, a first feed pipe is fixedly installed at the lower front side of the first high-pressure crystallization cylinder, a second feed pipe is fixedly installed at the lower front side of the second high-pressure crystallization cylinder, a main pipeline is welded to the lower front ends of the first feed pipe and the second feed pipe, a protective shell is provided at one end of the main pipeline, and a liquid pump is provided at the other end thereof, a connecting seat is welded to the end of the protective shell close to the main pipeline, a vent hole is opened in the middle of a side of the protective shell away from the main pipeline, an isolation plate is fixedly installed in the middle of the inner cavity of the protective shell, a high-pressure air pump is provided inside the protective shell on the side away from the main pipeline, and the A servo motor is provided inside the protective shell on a side close to the main pipeline, a fixed connecting piece is installed in the middle of the side of the connecting seat close to the protective shell, a limited rotating shaft is fixedly installed in the middle of the fixed connecting piece, a cylindrical cavity is opened in the middle of the connecting seat, a limited ring is fixedly installed in the middle of the inner wall of the connecting seat, a rotating piece is rotatably mounted in the inner cavity of the connecting seat at the position of the limiting ring, a connecting mesh plate is fixedly installed on the side of the middle of the inner cavity of the rotating piece close to the main pipeline, a fixed plate is fixedly installed in the middle of the connecting mesh plate, a gas connecting pipe is fixedly installed at the output end of the high-pressure air pump, one end of the gas connecting pipe penetrates the fixed connecting piece and extends to the inside of the connecting seat, a spiral fan blade is fixedly installed on the side wall of the rotating piece close to the main pipeline, the spiral fan blade extends to the inside of the main pipeline, and a ventilation groove is opened inside the spiral fan blade;

[0006] A connecting conduit is fixedly welded at one end of the spiral fan blade close to the main pipeline, a stabilizing frame is fixedly installed on the side wall of the inner cavity of the main pipeline close to the liquid pump, a hollow bearing is arranged in the middle of the stabilizing frame, and the hollow bearing is fixedly connected to the stabilizing frame through four connecting air guide pipes welded around the periphery, an annular ventilation groove is opened on the side wall of the main pipeline, and an exhaust protection net is arranged on the outside of the ventilation groove in the middle of the main pipeline;

[0007] A cleaning circulation pipe is fixedly installed at one end of the front side of the main pipeline close to the liquid pump, a cleaning box is fixedly installed at the upper end of the cleaning circulation pipe, a confluence pipe is fixedly installed in the middle of the first and second feed pipes, a cleaning return pipe is fixedly installed in the middle of the front side of the confluence pipe, and the front end of the cleaning return pipe is fixedly connected to the rear side wall of the cleaning box.

[0008] Furthermore, the upper ends of the first high-pressure crystallization tube and the second high-pressure crystallization tube are both provided with steam exhaust pipes, the front sides of the two steam exhaust pipes are provided with a steam recovery pipe, and the front ends of the two steam exhaust pipes are welded to the rear side of the same steam recovery pipe.

[0009] By adopting the above technical solution, the device can discharge excess steam through the steam discharge pipe and the steam recovery pipe, and then send it to the corresponding gas condensation device, so that the gas can be condensed and recovered.

[0010] Furthermore, a discharge pipe is fixedly installed on the upper front side of the first high-pressure crystallization cylinder and the second high-pressure crystallization cylinder.

[0011] By adopting the above technical solution, the device can transport the crystallized permanganate raw material to the subsequent device for subsequent processing.

[0012] Furthermore, the first feed pipe is located at the middle of one end of the first high-pressure crystallization cylinder and is fixedly installed with a first ball valve, and the second feed pipe is located at the middle of one end of the second high-pressure crystallization cylinder and is fixedly installed with a second ball valve.

[0013] By adopting the above technical solution, when cleaning the entire pipeline, the first ball valve and the second ball valve can be closed to prevent the cleaning liquid from entering the first high-pressure crystallization cylinder and the second high-pressure crystallization cylinder.

[0014] Furthermore, a second stopcock is fixedly installed on one side of the manifold, a third stopcock is fixedly installed on the other side of the manifold, and a first stopcock is fixedly installed on one end of the cleaning circulation pipe close to the liquid pump.

[0015] By adopting the above technical solution, when the second stopcock and the third stopcock are closed, no liquid will pass through the entire manifold, thereby ensuring that during the normal operation of the entire device, the internal manganese sulfate stock solution will not enter the cleaning box through the manifold.

[0016] Furthermore, a barrel connecting pipe is fixedly installed at the lower end of the liquid pump, a flow observation box is fixedly installed in the middle of the main pipeline, a flow observation plate is fixedly installed in the middle of the front side of the flow observation box, and a cleaning observation plate is fixedly installed in the middle of the front side of the cleaning box. The cleaning observation plate and the flow observation plate are both transparent and heat-resistant PVC material components.

[0017] By adopting the above technical solution, the flow state of the manganese sulfate solution inside the main pipeline can be observed through the flow observation plate, so that it is convenient for operators to judge whether the internal pipeline is blocked.

[0018] Furthermore, the output end of the servo motor penetrates the limiting rotating shaft and the fixing plate, and is welded and connected to the inner cavity side wall of the rotating part.

[0019] By adopting the above technical solution, the servo motor can directly drive the rotating part to rotate, so that the spiral blades can form a certain power inside the main pipeline, thereby accelerating the flow of the internal liquid and avoiding stagnation.

[0020] Furthermore, the connecting conduit is rotatably mounted inside a hollow bearing, the hollow bearing is a hollow annular structure, and the connecting air guide pipe is a hollow cylindrical metal structure.

[0021] By adopting the above technical solution, the connecting duct can rotate in the middle of the hollow bearing. At the same time, the interior of the spiral fan blade is connected to the hollow bearing as a whole through the connecting duct, and the internal air can be introduced from the connecting air duct into the ventilation groove to facilitate heat dissipation.

[0022] Furthermore, a solid recovery box is fixedly installed on the rear side wall of the inner cavity of the cleaning box, a filter plate is fixedly installed on the front side of the solid recovery box, and a liquid injection hole is fixedly installed on the upper end of the cleaning box.

[0023] By adopting the above technical solution, when the inside of the main pipeline needs to be cleaned, the reflux liquid passes through the main pipeline from the cleaning circulation pipe position, and then returns to the inside of the device from the solid recovery box position, thereby diluting, dissolving and discharging the crystals in the pipeline, effectively preventing blockage inside the pipeline.

[0024] Further, the method comprises the following steps:

[0025] Step 1: Connect the manganese sulfate raw material storage device to the barrel connecting pipe, start the liquid pump, and the liquid pump generates suction to extract the manganese sulfate raw material liquid from the manganese sulfate raw material storage device and send it into the pipeline;

[0026] Step 2 After the manganese sulfate raw material liquid enters the main pipeline, the servo motor is started to drive the spiral fan blades to rotate, so that the manganese sulfate raw material liquid can enter the first feed pipe and the second feed pipe at a uniform speed inside the main pipeline;

[0027] Step 3: The high-pressure air pump is started to deliver normal-temperature air into the ventilation groove through the rotating parts, so that the spiral fan blades can cool down the inside of the main pipeline at the same time during the rotation process;

[0028] Step 4: The manganese sulfate raw material liquid is heated and pressurized inside the first high-pressure crystallization cylinder and the second high-pressure crystallization cylinder. The manganese sulfate raw material liquid is rapidly crystallized under the action of high temperature and high pressure, thereby obtaining relatively pure manganese sulfate crystals;

[0029] Step 5: During the crystallization of the manganese sulfate raw material liquid, steam is recovered through a steam recovery pipe, and crystallized manganese sulfate crystal particles are extracted from the discharge pipe by a vacuum pump to facilitate subsequent processing;

[0030] Step 6 After the device has been used for a period of time, the manganese sulfate raw material liquid will produce certain crystals inside the main pipeline to block the inner wall of the pipeline. If the internal flow rate is observed to decrease at the flow observation plate, the first ball valve and the second ball valve can be closed, and the first plug valve, the second plug valve and the third plug valve can be opened;

[0031] Step 7: Fill the cleaning box with diluted manganese sulfate liquid. The diluted manganese sulfate liquid will enter the main pipeline through the cleaning circulation pipe. Driven by the rotation of the spiral blades, the diluted manganese sulfate liquid passes through the cleaning circulation pipe and the second feed pipe respectively, and finally flows back to the cleaning box through the confluence pipe and the cleaning return pipe. The manganese sulfate crystals in the main pipeline, the cleaning circulation pipe and the second feed pipe are dissolved in the diluted manganese sulfate liquid, so that the main pipeline, the cleaning circulation pipe and the second feed pipe remain unobstructed.

[0032] Compared with the prior art, the advantages of the present invention are:

[0033] 1. In the present invention, by providing a structure with spiral blades, the servo motor drives the spiral blades to rotate inside the main pipeline. When the rotation speed increases, the manganese sulfate raw material inside can be evenly moved at a uniform speed, which can effectively solve the problem of blockage and crystallization caused by too low flow rate of manganese sulfate solution inside the pipeline, or oversaturation of the solution due to partial blockage. At the same time, a ventilation groove is opened inside the spiral blade, and a high-pressure air pump can continuously send external air into the ventilation groove, so that the temperature of the manganese sulfate raw material can be reduced from the inside, thereby effectively solving the crystallization problem caused by oversaturation of manganese sulfate raw material concentration, too high temperature or low internal manganese sulfate flow rate.

[0034] 2. In the present invention, by providing a structure of a cleaning box, a dilute manganese sulfate solution can be loaded into the cleaning box. When the inside of the pipeline is blocked, the first plug valve, the second plug valve and the third plug valve are opened, and the first ball valve and the second ball valve are closed. The dilute manganese sulfate solution can be circulated in the main pipeline and the cleaning box through the rotation of the spiral blades. The manganese sulfate crystals in the main pipeline will dissolve when encountering the dilute solution, and the main pipeline can be cleaned and maintained without disassembly, thereby achieving the effect of cleaning the main pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the overall structure of the first high-pressure crystallization cylinder of the present invention;

[0037] Figure 3 This is a structural breakdown diagram of the propeller fan of the present invention;

[0038] Figure 4 is a cross-sectional view of the main pipeline of the present invention;

[0039] Figure 5 is a cross-sectional view of a hollow bearing of the present invention;

[0040] Figure 6 is a cross-sectional view of the protective housing of the present invention;

[0041] Figure 7 A cross-sectional view of a cleaning box of the present invention;

[0042] Figure 8 It is a schematic diagram of the pipeline cleaning of the present invention.

[0043] Explanation of the numbers in the figure: 1. Mounting bracket; 2. Discharge pipe; 3. Steam recovery pipe; 4. First ball valve; 5. Liquid pump; 6. Cylinder connecting pipe; 7. Cleaning circulation pipe; 8. Exhaust protection net; 9. First plug valve; 10. Main pipeline; 1001. Ventilation slot; 11. Cleaning box; 1101. Solid recovery box; 1102. Injection hole; 1103. Filter plate; 12. Cleaning observation plate; 13. Protective shell; 1301. Connecting seat; 14. Second ball valve; 15. First high-pressure crystallization cylinder; 1501. Second high-pressure crystallization cylinder; 16. Steam discharge pipe; 17. First inlet Material pipe; 18. Flow observation plate; 19. Flow observation box; 20. Cleaning return pipe; 21. Second material inlet pipe; 22. Second stopcock; 23. Third stopcock; 24. Confluence pipe; 25. Spiral fan blade; 2501. Ventilation groove; 26. Gas connecting pipe; 27. Servo motor; 28. Stabilizing frame; 2801. Connecting air duct; 29. ​​Hollow bearing; 30. Connecting duct; 31. Fixed plate; 32. Connecting mesh plate; 33. Ventilation hole; 34. Rotating part; 35. Limiting ring; 36. Limiting shaft; 37. Fixed connecting part; 38. Isolation plate; 39. High-pressure air pump. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] like Figure 1 - Figure 8As shown, an embodiment of the present invention provides: comprising a mounting bracket 1, a first high-pressure crystallization cylinder 15 is fixedly installed on the middle part of the mounting bracket 1 by bolts, a second high-pressure crystallization cylinder 1501 is fixedly installed on one side of the mounting bracket 1 by bolts, a first feed pipe 17 is fixedly installed on the front lower side of the first high-pressure crystallization cylinder 15, a second feed pipe 21 is fixedly installed on the front lower side of the second high-pressure crystallization cylinder 1501, a main pipeline 10 is welded to the front lower ends of the first feed pipe 17 and the second feed pipe 21, a protective shell 13 is provided at one end of the main pipeline 10, and a liquid pump 5 is provided at the other end thereof, a connecting seat 1301 is welded to the end of the protective shell 13 close to the main pipeline 10, a vent hole 33 is opened in the middle of the side of the protective shell 13 away from the main pipeline 10, an isolation plate 38 is fixedly installed in the middle of the inner cavity of the protective shell 13, a high-pressure air pump 39 is provided inside the protective shell 13 on the side away from the main pipeline 10, and a liquid pump 5 is provided inside the protective shell 13 close to the main pipeline 10. A servo motor 27 is provided on one side of the main pipeline 10, a fixed connection piece 37 is installed in the middle of the side of the connection seat 1301 close to the protective shell 13, a limited rotation shaft 36 is fixedly installed in the middle of the fixed connection piece 37, a cylindrical cavity is opened in the middle of the connection seat 1301, a limited ring 35 is fixedly installed in the middle of the inner wall of the connection seat 1301, and a rotating piece 34 is rotatably mounted on the inner cavity of the connection seat 1301 at the position of the limited ring 35, and the middle of the inner cavity of the rotating piece 34 is close to the main pipeline 10 A connecting mesh plate 32 is fixedly installed on one side of the main pipe 10, a fixing plate 31 is fixedly installed in the middle of the connecting mesh plate 32, a gas connecting pipe 26 is fixedly installed on the output end of the high-pressure gas pump 39, one end of the gas connecting pipe 26 penetrates the fixed connecting piece 37 and extends to the inside of the connecting seat 1301, and a spiral blade 25 is fixedly installed on the side wall of the rotating member 34 close to the main pipe 10, and the spiral blade 25 extends to the inside of the main pipe 10, and a ventilation groove 2501 is opened inside the spiral blade 25;

[0046] A connecting conduit 30 is fixedly welded on one end of the spiral blade 25 close to the main pipeline 10, a stabilizing frame 28 is fixedly installed on the inner cavity side wall of the main pipeline 10 close to the liquid pump 5, a hollow bearing 29 is arranged in the middle of the stabilizing frame 28, and the hollow bearing 29 is fixedly connected to the stabilizing frame 28 through four connecting air guide pipes 2801 welded around the periphery, an annular ventilation groove 1001 is opened on the side wall of the main pipeline 10, and an exhaust protection net 8 is arranged on the outside of the ventilation groove 1001 in the middle of the main pipeline 10;

[0047] A cleaning circulation pipe 7 is fixedly installed at one end of the front side of the main pipeline 10 close to the liquid pump 5, a cleaning box 11 is fixedly installed at the upper end of the cleaning circulation pipe 7, a confluence pipe 24 is fixedly installed in the middle of the first feed pipe 17 and the second feed pipe 21, a cleaning return pipe 20 is fixedly installed in the middle of the front side of the confluence pipe 24, the front end of the cleaning return pipe 20 is fixedly connected to the rear side wall of the cleaning box 11, a solid recovery box 1101 is fixedly installed on the rear side wall of the inner cavity of the cleaning box 11, a filter plate 1103 is fixedly installed on the front side of the solid recovery box 1101, and a liquid injection hole 1102 is fixedly installed on the upper end of the cleaning box 11. When it is necessary to clean the inside of the main pipeline 10, the refluxed liquid passes through the main pipeline 10 from the position of the cleaning circulation pipe 7, and then returns to the inside of the device from the position of the solid recovery box 1101, so that the crystals in the pipeline can be diluted, dissolved and discharged, effectively preventing the inside of the pipeline from being blocked;

[0048] The upper ends of the first high-pressure crystallization tube 15 and the second high-pressure crystallization tube 1501 are both provided with a steam exhaust pipe 16, and a steam recovery pipe 3 is provided on the front side of the two steam exhaust pipes 16. The front ends of the two steam exhaust pipes 16 are welded to the rear side of the same steam recovery pipe 3, so that the device can exhaust excess steam through the steam exhaust pipe 16 and the steam recovery pipe 3, and then send it to the corresponding gas condensation device, so that the gas can be condensed and recovered. A discharge pipe 2 is fixedly installed on the upper front side of the first high-pressure crystallization tube 15 and the second high-pressure crystallization tube 1501, so that the device can transport the crystallized permanganate raw material to the subsequent device for subsequent processing;

[0049] The first feed pipe 17 is located at the middle of one end of the first high-pressure crystallization cylinder 15 and is fixedly installed with a first ball valve 4. The second feed pipe 21 is located at the middle of one end of the second high-pressure crystallization cylinder 1501 and is fixedly installed with a second ball valve 14. When cleaning the entire pipeline, the first ball valve 4 and the second ball valve 14 can be closed to prevent the cleaning liquid from entering the first high-pressure crystallization cylinder 15 and the second high-pressure crystallization cylinder 1501.

[0050] A second plug valve 22 is fixedly installed on one side of the manifold 24, a third plug valve 23 is fixedly installed on the other side of the manifold 24, and a first plug valve 9 is fixedly installed on one end of the cleaning circulation pipe 7 close to the liquid pump 5. When the second plug valve 22 and the third plug valve 23 are closed, no liquid will pass through the entire manifold 24, thereby ensuring that the manganese sulfate stock solution inside will not enter the cleaning box 11 through the manifold 24 during the normal operation of the entire device;

[0051] The lower end of the liquid pump 5 is fixedly installed with a barrel connecting pipe 6, the middle of the main pipeline 10 is fixedly installed with a flow observation box 19, the middle of the front side of the flow observation box 19 is fixedly installed with a flow observation plate 18, and the middle of the front side of the cleaning box 11 is fixedly installed with a cleaning observation plate 12. The cleaning observation plate 12 and the flow observation plate 18 are both transparent and heat-resistant PVC material components. The flow state of the manganese sulfate solution inside the main pipeline 10 can be observed through the flow observation plate 18, so as to facilitate the operator to judge whether the internal pipeline is blocked;

[0052] The output end of the servo motor 27 penetrates the limit rotating shaft 36 and the fixed plate 31, and is welded and connected to the inner cavity side wall of the rotating member 34. The servo motor 27 can directly drive the rotating member 34 to rotate, so that the spiral blades 25 can generate a certain power inside the main pipeline 10, thereby accelerating the flow of the internal liquid to avoid stagnation.

[0053] The connecting conduit 30 is rotatably mounted inside the hollow bearing 29. The hollow bearing 29 is a hollow annular structure. The connecting air guide pipe 2801 is a hollow cylindrical metal structure. The connecting conduit 30 can rotate in the middle of the hollow bearing 29. At the same time, the interior of the spiral blade 25 is integrally connected with the hollow bearing 29 through the connecting conduit 30. The internal air can be introduced from the connecting air guide pipe 2801 into the ventilation slot 1001 to facilitate heat dissipation.

[0054] A high-purity manganese sulfate high-temperature and high-pressure crystallization device, characterized by comprising the following steps:

[0055] Step 1: Connect the manganese sulfate raw material storage device to the barrel connecting pipe 6, start the liquid pump 5, and the liquid pump 5 generates suction to extract the manganese sulfate raw material liquid from the manganese sulfate raw material storage device and send it into the main pipeline 10;

[0056] Step 2 After the manganese sulfate raw material liquid enters the main pipeline 10, the servo motor 27 is started to drive the spiral blades 25 to rotate, so that the manganese sulfate raw material liquid can enter the first feed pipe 17 and the second feed pipe 21 at a uniform speed in the main pipeline 10;

[0057] Step 3 The high-pressure air pump 39 is started to deliver normal-temperature air into the ventilation groove 2501 through the rotating member 34, so that the spiral blades 25 can simultaneously cool the interior of the main pipeline 10 during the rotation process;

[0058] Step 4: The manganese sulfate raw material liquid is heated and pressurized inside the first high-pressure crystallization cylinder 15 and the second high-pressure crystallization cylinder 1501. The manganese sulfate raw material liquid is rapidly crystallized under the action of high temperature and high pressure, thereby obtaining relatively pure manganese sulfate crystals;

[0059] Step 5 During the crystallization of the manganese sulfate raw material liquid, steam is recovered through the steam recovery pipe 3, and the crystallized manganese sulfate crystal particles are extracted from the discharge pipe 2 by a vacuum pump for subsequent processing.

[0060] Step 6 After the device has been used for a period of time, the manganese sulfate raw material liquid will produce certain crystals inside the main pipeline 10 to block the inner wall of the pipeline. If the internal flow rate is observed to decrease at the flow observation plate 18, the first ball valve 4 and the second ball valve 14 can be closed, and the first plug valve 9, the second plug valve 22 and the third plug valve 23 can be opened;

[0061] Step 7: Diluted manganese sulfate liquid is filled in the cleaning box 11. The diluted manganese sulfate liquid will enter the main pipeline 10 through the cleaning circulation pipe 7. Driven by the rotation of the spiral blades 25, the diluted manganese sulfate liquid passes through the cleaning circulation pipe 7 and the second feed pipe 21 respectively, and finally flows back to the cleaning box 11 through the confluence pipe 24 and the cleaning return pipe 20. The manganese sulfate crystals in the main pipeline 10, the cleaning circulation pipe 7 and the second feed pipe 21 are dissolved in the diluted manganese sulfate liquid, so that the main pipeline 10, the cleaning circulation pipe 7 and the second feed pipe 21 remain unobstructed.

[0062] Working principle of the present invention: the operator connects the barrel connecting pipe 6 to the feeding device, and the manganese sulfate raw material can be pumped into the main pipeline 10 through the liquid pump 5. An annular limiting ring 35 is welded in the middle of the inner cavity of the connecting seat 1301, and a rotating part 34 is clamped in the inner cavity of the connecting seat 1301 at the position of the limiting ring 35. The rotating part 34 can rotate inside the connecting seat 1301, and the output end of the servo motor 27 is fixedly connected to the inner wall of the rotating part 34. The side of the limiting ring 35 is fixedly installed with a spiral blade 25, and the spiral blade 25 extends to the inside of the main pipeline 10. When the servo motor 27 is started, the spiral blade 25 rotates inside the main pipeline 10. The entire spiral blade 25 is a hollow spiral component. When the spiral blade 25 rotates, it can give a uniform force to the manganese sulfate raw material inside the main pipeline 10, so that the manganese sulfate raw material can enter the first high-pressure junction at a uniform speed. The inside of the crystal tube 15 and the second high-pressure crystallization tube 1501 can effectively solve the problem of blockage and crystallization caused by too low flow rate of manganese sulfate solution in the pipeline, or oversaturation of the solution due to partial blockage, and a ventilation groove 2501 is provided inside the spiral fan blade 25. When the high-pressure air pump 39 is started, air is sent into the cylindrical cavity opened in the middle of the connecting seat 1301 through the gas connecting pipe 26, and the air enters the ventilation groove 2501 through the connecting mesh plate 32. Thereafter, the air passes through the connecting duct 30, the hollow bearing 29, and the connecting air guide pipe 2801 in turn to enter the ventilation groove 1001, and is finally discharged from the exhaust protection net 8. When the air passes through the ventilation groove 2501, the heat of the manganese sulfate raw material inside the main pipeline 10 is evenly taken away, thereby effectively solving the crystallization problem caused by oversaturation of the manganese sulfate raw material concentration, high temperature or low flow rate of the internal manganese sulfate raw material;

[0063] like Figure 8 As shown, when the entire device has been used for a period of time, the operator observes from the flow observation plate 18 that the internal flow has become smaller, and the first ball valve 4 and the second ball valve 14 can be closed, and the first plug valve 9, the second plug valve 22 and the third plug valve 23 can be opened. The diluted manganese sulfate liquid is filled into the cleaning box 11, and the diluted manganese sulfate liquid will enter the main pipeline 10 through the cleaning circulation pipe 7. After that, driven by the spiral fan blades 25, the diluted manganese sulfate liquid will pass through the first feed pipe 17 and the second feed pipe 21, and intersect at the position of the conduit 24, and finally enter the filter plate 1103 through the cleaning return pipe 20. Some smaller manganese sulfate crystals will dissolve in the diluted manganese sulfate liquid, and some larger crystals will be collected at the filter plate 1103 after dissolving and falling off, and the main pipeline 10 can be cleaned and maintained without disassembly.

[0064] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-purity manganese sulfate high-temperature and high-pressure crystallization device, comprising a mounting bracket (1), characterized in that: A first high-pressure crystallization cylinder (15) is fixedly mounted on the middle part of the mounting bracket (1) by means of bolts, and a second high-pressure crystallization cylinder (1501) is fixedly mounted on one side of the mounting bracket (1) by means of bolts, a first feed pipe (17) is fixedly mounted on the lower front side of the first high-pressure crystallization cylinder (15), and a second feed pipe (21) is fixedly mounted on the lower front side of the second high-pressure crystallization cylinder (1501), and a main pipeline (10) is welded to the lower front ends of the first feed pipe (17) and the second feed pipe (21), and the main pipeline (10) A protective shell (13) is provided at one end of the protective shell (13), and a liquid pump (5) is provided at the other end thereof; a connection seat (1301) is welded to the end of the protective shell (13) close to the main pipeline (10); a vent hole (33) is provided in the middle of a side of the protective shell (13) away from the main pipeline (10); an isolation plate (38) is fixedly installed in the middle of the inner cavity of the protective shell (13); a high-pressure air pump (39) is provided inside the protective shell (13) on a side away from the main pipeline (10); and a servo motor (39) is provided inside the protective shell (13) on a side close to the main pipeline (10). The connecting seat (1301) is provided with a fixed connecting piece (37) in the middle of one side close to the protective shell (13); a limited rotation shaft (36) is fixedly installed in the middle of the fixed connecting piece (37); a cylindrical cavity is opened in the middle of the connecting seat (1301); a limited ring (35) is fixedly installed in the middle of the inner wall of the connecting seat (1301); a rotating piece (34) is rotatably mounted in the inner cavity of the connecting seat (1301) at the position of the limited ring (35); and a fixed rotating shaft (36) is fixedly installed in the middle of the inner cavity of the rotating piece (34) close to the main pipeline (10). A connecting mesh plate (32) is provided, a fixing plate (31) is fixedly mounted in the middle of the connecting mesh plate (32), a gas connecting pipe (26) is fixedly mounted at the output end of the high-pressure gas pump (39), one end of the gas connecting pipe (26) penetrates the fixed connecting member (37) and extends to the inside of the connecting seat (1301), a spiral blade (25) is fixedly mounted on the side wall of the rotating member (34) on the side close to the main pipeline (10), the spiral blade (25) extends to the inside of the main pipeline (10), and a ventilation groove (2501) is provided inside the spiral blade (25); A connecting conduit (30) is fixedly welded to one end of the spiral blade (25) close to the main pipeline (10); a stabilizing frame (28) is fixedly installed on the inner cavity side wall of the main pipeline (10) close to the liquid pump (5); a hollow bearing (29) is arranged in the middle of the stabilizing frame (28); the hollow bearing (29) is fixedly connected to the stabilizing frame (28) via four connecting air guide pipes (2801) welded around the periphery; an annular ventilation groove (1001) is provided on the side wall of the main pipeline (10); and an exhaust protection net (8) is arranged in the middle of the main pipeline (10) on the outside of the ventilation groove (1001); A cleaning circulation pipe (7) is fixedly mounted on one end of the front side of the main pipeline (10) close to the liquid pump (5); a cleaning box (11) is fixedly mounted on the upper end of the cleaning circulation pipe (7); a confluence pipe (24) is fixedly mounted in the middle of the first feed pipe (17) and the second feed pipe (21); a cleaning return pipe (20) is fixedly mounted in the middle of the front side of the confluence pipe (24); and a front end of the cleaning return pipe (20) is fixedly connected to the rear side wall of the cleaning box (11).

2. A high-purity manganese sulfate high-temperature and high-pressure crystallization device according to claim 1, characterized in that: The upper ends of the first high-pressure crystallization tube (15) and the second high-pressure crystallization tube (1501) are both provided with a steam exhaust pipe (16), the front sides of the two steam exhaust pipes (16) are provided with a steam recovery pipe (3), and the front ends of the two steam exhaust pipes (16) are both welded to the rear side of the same steam recovery pipe (3).

3. A high-purity manganese sulfate high-temperature and high-pressure crystallization device according to claim 2, characterized in that: A discharge pipe (2) is fixedly mounted on the upper front side of the first high-pressure crystallization cylinder (15) and the second high-pressure crystallization cylinder (1501).

4. A high-purity manganese sulfate high-temperature and high-pressure crystallization device according to claim 3, characterized in that: The first feed pipe (17) is located at the middle of one end of the first high-pressure crystallization cylinder (15) and is fixedly mounted with a first ball valve (4), and the second feed pipe (21) is located at the middle of one end of the second high-pressure crystallization cylinder (1501) and is fixedly mounted with a second ball valve (14).

5. A high-purity manganese sulfate high-temperature and high-pressure crystallization device according to claim 4, characterized in that: A second stopcock (22) is fixedly mounted on one side of the manifold (24), a third stopcock (23) is fixedly mounted on the other side of the manifold (24), and a first stopcock (9) is fixedly mounted on one end of the cleaning circulation pipe (7) close to the liquid pump (5).

6. A high-purity manganese sulfate high-temperature and high-pressure crystallization device according to claim 5, characterized in that: A barrel connecting pipe (6) is fixedly mounted at the lower end of the liquid pump (5), a flow observation box (19) is fixedly mounted in the middle of the main pipeline (10), a flow observation plate (18) is fixedly mounted in the middle of the front side of the flow observation box (19), and a cleaning observation plate (12) is fixedly mounted in the middle of the front side of the cleaning box (11), and both the cleaning observation plate (12) and the flow observation plate (18) are made of transparent, heat-resistant PVC.

7. A high-purity manganese sulfate high-temperature and high-pressure crystallization device according to claim 6, characterized in that: The output end of the servo motor (27) penetrates the limit rotating shaft (36) and the fixed plate (31), and is welded and connected to the inner cavity side wall of the rotating member (34).

8. A high-purity manganese sulfate high-temperature and high-pressure crystallization device according to claim 7, characterized in that: The connecting conduit (30) is rotatably mounted inside the hollow bearing (29); the hollow bearing (29) is a hollow annular structure; and the connecting air guide tube (2801) is a hollow cylindrical metal structure.

9. A high-purity manganese sulfate high-temperature and high-pressure crystallization device according to claim 8, characterized in that: A solid recovery box (1101) is fixedly mounted on the rear side wall of the inner cavity of the cleaning box (11), a filter plate (1103) is fixedly mounted on the front side of the solid recovery box (1101), and a liquid injection hole (1102) is fixedly mounted on the upper end of the cleaning box (11).

10. A high-purity manganese sulfate high-temperature and high-pressure crystallization method, which relates to the high-purity manganese sulfate high-temperature and high-pressure crystallization device according to claim 9, characterized in that The steps include: Step 1: Connect the manganese sulfate raw material storage device to the barrel connecting pipe (6), start the liquid pump (5), and the liquid pump (5) generates suction to extract the manganese sulfate raw material liquid from the manganese sulfate raw material storage device and send it into the main pipeline (10); Step 2: After the manganese sulfate raw material liquid enters the main pipeline (10), the servo motor (27) is started to drive the spiral fan blade (25) to rotate, so that the manganese sulfate raw material liquid can enter the first feed pipe (17) and the second feed pipe (21) at a uniform speed in the main pipeline (10); Step 3: The high-pressure air pump (39) is started to deliver normal-temperature gas into the ventilation groove (2501) through the rotating member (34), so that the spiral blades (25) can simultaneously cool the interior of the main pipeline (10) during the rotation process; Step 4: The manganese sulfate raw material liquid is heated and pressurized inside the first high-pressure crystallization cylinder (15) and the second high-pressure crystallization cylinder (1501). The manganese sulfate raw material liquid is rapidly crystallized under the action of high temperature and high pressure, thereby obtaining relatively pure manganese sulfate crystals; Step 5: During the crystallization process of the manganese sulfate raw material liquid, steam is recovered through the steam recovery pipe (3), and the crystallized manganese sulfate crystal particles are extracted from the discharge pipe (2) by a vacuum pump to facilitate subsequent processing; Step 6 After the device has been used for a period of time, the manganese sulfate raw material liquid will produce certain crystals inside the main pipeline (10) to block the inner wall of the pipeline. If the internal flow rate is observed to decrease at the flow observation plate (18), the first ball valve (4) and the second ball valve (14) can be closed, and the first plug valve (9), the second plug valve (22) and the third plug valve (23) can be opened; Step 7: Diluted manganese sulfate liquid is filled into the cleaning box (11). The diluted manganese sulfate liquid enters the main pipeline (10) through the cleaning circulation pipe (7). Driven by the rotation of the spiral blades (25), the diluted manganese sulfate liquid passes through the cleaning circulation pipe (7) and the second feed pipe (21) respectively, and finally flows back to the cleaning box (11) through the confluence pipe (24) and the cleaning return pipe (20). The manganese sulfate crystals in the main pipeline (10), the cleaning circulation pipe (7) and the second feed pipe (21) are dissolved in the diluted manganese sulfate liquid, so that the main pipeline (10), the cleaning circulation pipe (7) and the second feed pipe (21) remain unobstructed.

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