Production device and method for high-purity manganese sulfate

Abstract

The invention relates to a production device and method for high-purity manganese sulfate, and belongs to the technical field of chemical engineering. Existing drum-type drying equipment has the problems of uneven heating temperature control, poor caking crushing effect and the like, the device comprises a rack, a heating cylinder is supported on the rack through a guide wheel and a rotating ring, and a driving motor drives the heating cylinder to rotate; the heating cylinder adopts a double-layer structure of an outer cylinder and an inner cylinder, and a plurality of sections of heating wires are mounted in an interlayer, so that partitioned temperature control can be realized; one end of the heating cylinder is provided with an end box and a feeding hopper, and the other end is provided with a discharging hopper and a discharging port; a spiral conveying roller on the end box is linked with the heating cylinder through a driving assembly, so that intermittent conveying of materials is realized; and the block cleaning mechanism in the discharging hopper rubs and crushes the caked materials by utilizing an elastic rolling plate and a baffle through the cooperation of a rotating pipe, a rotating shaft II, a swinging box I and a swinging box II. The device can enable materials to be uniformly heated and fully dried, effectively crush agglomerates and improve the purity and uniformity of products, and is suitable for industrial production of high-purity manganese sulfate.

Description

Technical Field

[0001] This invention belongs to the field of chemical technology and relates to an apparatus and method for producing high-purity manganese sulfate. Background Technology

[0002] In the production of high-purity manganese sulfate, the drying process is one of the key steps to ensure product quality. Currently, the main drying equipment used for high-purity manganese sulfate includes drum dryers, airflow dryers, and vacuum dryers. Among them, drum dryers are widely used in industrial production due to their large processing capacity and simple operation.

[0003] However, existing drum drying equipment still has some shortcomings in actual use: In terms of heating and temperature control structure, traditional drums mostly adopt an integral heating method, with heating elements evenly distributed on the outer layer of the drum. It is impossible to adjust the temperature according to the characteristics of the material drying stage. For high-purity manganese sulfate, if the temperature is too high in the initial stage, it will easily cause the surface moisture of the material to evaporate rapidly and form a hard shell, which will prevent the internal moisture from escaping. If the temperature is insufficient in the later stage, it is difficult to remove the bound water, resulting in large fluctuations in the moisture content of the final product. At the same time, the structural design of the heating area in contact with the material is simple, the heat transfer efficiency is low, and some heat is directly lost through the outer wall of the drum, resulting in energy waste.

[0004] In terms of agglomeration and crushing, the existing agglomeration mechanism has a relatively complex structure, and the crushing components are mostly rigidly connected, which cannot be adaptively adjusted according to the size of the agglomerates. When encountering large agglomerates, the components are easily damaged due to excessive force. When processing small agglomerates or loose materials, the crushing effect may be poor due to insufficient crushing pressure, which affects the uniformity of the product.

[0005] Therefore, we propose a production apparatus and method for high-purity manganese sulfate to solve the problems mentioned above. Summary of the Invention

[0006] In view of this, in order to solve the above problems, the present invention provides an apparatus and method for producing high-purity manganese sulfate.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a production apparatus for high-purity manganese sulfate, comprising:

[0008] frame;

[0009] A heating cylinder is rotatably mounted on the frame and includes an outer cylinder and an inner cylinder. A sandwich is formed between the outer cylinder and the inner cylinder, and multiple heating wires are provided in the sandwich for zoned temperature control.

[0010] A drive motor is fixed on the frame, and its output end is connected to the heating cylinder in a transmission manner;

[0011] An end box is fixed to the frame and disposed at the feed end of the heating cylinder, and a feeding hopper is provided on the end box;

[0012] A discharge hopper is fixed to the frame and disposed at the discharge end of the heating cylinder, and the discharge hopper is provided with a discharge port;

[0013] A spiral conveyor roller is rotatably mounted on the end box;

[0014] A block-clearing mechanism is located inside the discharge hopper;

[0015] The drive motor drives the heating cylinder to rotate to turn the material. The heating cylinder achieves zoned temperature control through multiple heating wires. The material is conveyed to the clearing mechanism for crushing via the spiral conveyor roller.

[0016] As a further improvement to the above technical solution:

[0017] The frame is provided with two sets of guide wheels, and each set of guide wheels has the same rotating ring rotating inside it. The heating cylinder is fixed inside the two rotating rings.

[0018] The output end of the drive motor is connected to the heating cylinder through a synchronous transmission assembly. The synchronous transmission assembly includes a rotating shaft I, a synchronous pulley, a synchronous belt, a gear I, and a gear ring. The rotating shaft I is rotatably mounted inside the frame. The output end of the drive motor and the rotating shaft I are both fixedly fitted with synchronous pulleys. The two synchronous pulleys are connected by a synchronous belt. The rotating shaft I is fixedly fitted with gear I. The outer wall of the heating cylinder is fixedly fitted with a gear ring, and gear I meshes with the gear ring.

[0019] The spiral conveying roller is connected to the heating cylinder via a drive assembly. The drive assembly includes a turntable, support rods, and gear II. The turntable is rotatably sleeved on the outer wall of the spiral conveying roller. Multiple support rods are fixed between the turntable and the inner cylinder. Gear II is fixedly sleeved on the outer wall of the spiral conveying roller and engages with the turntable.

[0020] When the heating cylinder rotates, it drives the turntable to move via the support rod, which in turn drives the spiral conveyor roller to rotate intermittently to convey materials.

[0021] A fixed seat is fixedly provided on the inner wall of one side of the turntable. An insert block is slidably provided on the top of the fixed seat. The bottom end of the insert block is engaged with the tooth groove of the gear II. Two guide rods are slidably provided on the top of the insert block. The bottom ends of the guide rods are fixedly connected to the fixed seat. A spring is sleeved on the outer wall of the guide rod. The two ends of the spring abut against the bottom of the insert block and the top of the fixed seat, respectively. A guide block is fixedly provided on one side of the end box. The guide block is engaged with the insert block.

[0022] The insert block is inserted into the tooth groove of gear II under the action of the guide block to drive rotation.

[0023] The clearing mechanism includes a rotating tube, a rotating shaft II, a swing box I, a swing box II, and a rolling plate. The rotating tube is rotatably disposed on one side of the discharge hopper and extends into the heating cylinder. The swing box I is fixedly disposed on the outer wall of the rotating tube. The rotating shaft II is rotatably disposed inside the rotating tube. The swing box II is fixedly disposed on the outer wall of the rotating shaft II. The rolling plate is disposed inside the swing box II. The rolling plate is an elastic steel plate. A baffle is fixedly disposed inside the swing box I. A clearance groove is opened on the outer wall of the rotating tube. The swing box II is exposed through the clearance groove.

[0024] Two limiting blocks are fixedly provided on the inner wall of the inner cylinder, and a fixing column is fixedly provided on one side of the swing box II, with the fixing column cooperating with the limiting blocks;

[0025] When the heating cylinder rotates, the limiting block abuts against the fixed column to drive the swing box II to swing, so that the crushing plate and the baffle knead the material.

[0026] The axis of the rotating tube is lower than the axis of the heating cylinder.

[0027] A drive box is fixedly installed on one side of the discharge hopper. The rotating shaft II and the rotating tube are both rotatably installed in the drive box through bearings. A gear III is rotatably installed on one side of the drive box. A gear IV is fixedly sleeved on the outer wall of both the rotating tube and the rotating shaft II. The gear IV meshes with the gear III.

[0028] When the rotating tube rotates, it drives the rotating shaft II to rotate in the opposite direction through gears III and IV.

[0029] A method for producing high-purity manganese sulfate, using the above-mentioned production apparatus, includes the following steps:

[0030] S1. Add the material into the heating cylinder through the feeding hopper;

[0031] S2. Start the drive motor to drive the heating cylinder to rotate, and at the same time start the multi-section heating wire to perform zoned temperature control. The temperature at the feeding end is controlled at 90℃-110℃, the temperature in the middle section is controlled at 110℃-130℃, and the temperature at the discharging end is controlled at 100℃-120℃.

[0032] S3. The heating cylinder rotates and turns the material, and drives the screw conveyor roller to convey the material intermittently through the drive component;

[0033] S4. When the material is conveyed to the discharge hopper, the lumpy material is crushed by the crushing of the crushing plate and the baffle.

[0034] S5. The crushed material is discharged through the discharge port.

[0035] The beneficial effects of this invention are as follows:

[0036] 1. The production apparatus for high-purity manganese sulfate disclosed in this invention features a heating cylinder with a double-layer structure consisting of an outer cylinder and an inner cylinder. The sandwich layer between the two cylinders provides independent installation space for the heating wires, facilitating the arrangement and fixing of multiple heating wire segments. This structure allows the heat from each heating wire segment to be directionally transferred to the material through the inner cylinder, reducing heat diffusion to the external environment. Simultaneously, the double-layer structure also provides space for the filling of insulation material, further enhancing the insulation effect and ensuring the effectiveness of zoned temperature control.

[0037] 2. The production device for high-purity manganese sulfate disclosed in this invention has a spiral conveying roller that is rotatably mounted inside a turntable via bearings. The turntable and the inner cylinder are fixedly connected by a support rod to form a linkage structure that rotates synchronously with the heating cylinder. The design of the insert block, guide block and gear II enables the intermittent rotation of the spiral conveying roller without the need for an additional drive source. It can be driven by the rotation of the heating cylinder itself, which simplifies the equipment structure and enables it to automatically and timed convey materials during the material turning process.

[0038] 3. The production device for high-purity manganese sulfate disclosed in this invention adopts a coaxial nested design for the rotating tube and rotating shaft II of the clearing mechanism. The reverse rotation is achieved by the meshing of gear III and two gears IV. The reverse swinging of swing box I and swing box II is realized in a limited space. The structure is compact and saves installation space. The corresponding setting of the crushing plate and the baffle, combined with the swinging action of the swing box, can effectively knead and squeeze the material, thereby processing the agglomerated material.

[0039] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0040] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0041] Figure 1 This is a three-dimensional structural schematic diagram of a production apparatus for high-purity manganese sulfate according to the present invention;

[0042] Figure 2 This is a three-dimensional structural schematic diagram of a production apparatus for high-purity manganese sulfate according to the present invention from another perspective.

[0043] Figure 3This is a cross-sectional view of a heating cylinder in a high-purity manganese sulfate production apparatus according to the present invention.

[0044] Figure 4 This is a schematic diagram of the spiral conveyor roller and drive assembly structure of a high-purity manganese sulfate production device according to the present invention;

[0045] Figure 5 This is a schematic diagram of the drive component structure of a high-purity manganese sulfate production device according to the present invention;

[0046] Figure 6 This is a schematic diagram of the crushing component structure of a high-purity manganese sulfate production device according to the present invention;

[0047] Figure 7 This is a schematic diagram of an elastic plate mounting structure for a high-purity manganese sulfate production apparatus according to the present invention;

[0048] Figure 8 This is a schematic diagram of a drive gear connection structure for a high-purity manganese sulfate production device according to the present invention;

[0049] Figure 9 This is a schematic diagram of the installation structure of a limiting block for a high-purity manganese sulfate production device according to the present invention.

[0050] Reference numerals: 1. Frame; 2. Guide wheel; 3. Rotating ring; 4. Heating cylinder; 41. Outer cylinder; 42. Inner cylinder; 43. Heating wire; 5. End box; 51. Fixed plate; 6. Feeding hopper; 7. Discharge hopper; 8. Discharge port; 9. Power distribution cabinet; 10. Drive motor; 11. Rotating shaft I; 12. Synchronous pulley; 13. Synchronous belt; 14. Gear I; 15. Gear ring; 16. Exhaust fan; 17. Collection bag; 18. Drive motor 19. Moving box; 20. Screw conveyor roller; 21. Turntable; 22. Support rod; 23. Gear II; 24. Guide block; 25. Fixed seat; 26. Insert block; 27. Guide rod; 28. Spring; 29. ​​Rotating tube; 30. Rotating shaft II; 31. Swing box I; 32. Swing box II; 33. Rolling plate; 34. Relief groove; 35. Baffle; 36. Gear III; 37. Gear IV; 38. Fixed column; 39. Limiting block. Detailed Implementation

[0051] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0052] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0053] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0054] Example 1

[0055] like Figures 1-9As shown, a production apparatus for high-purity manganese sulfate includes a frame 1, which is welded from channel steel and I-beams. The bottom is fixed to the ground with expansion bolts to ensure no significant shaking during operation. Two sets of guide wheels 2 are rotatably mounted on the crossbeam of the frame 1 via bearing mounts. Each set of guide wheels 2 has four annular grooves with a depth of 10 mm at its rim, symmetrically distributed on both sides of a rotating ring 3. The rotating ring 3 is forged from 45# steel and then heat-treated. Its outer wall is fitted to the grooves of the guide wheels 2, with a clearance controlled between 0.5-1 mm. The inner walls of the two rotating rings 3 are fixed with the same heating cylinder 4 by M12 bolts, which are evenly distributed every 60 degrees along the circumference. The heating cylinder 4 can rotate around its own axis under the support of the rotating rings 3, with a radial runout not exceeding 0.3 mm. A drive motor 10 is fixed to the top platform of the frame 1 by M10 bolts. The drive motor 10 is a servo motor equipped with a 17-bit absolute encoder for precise speed control. The output end of the drive motor 10 is connected to the heating cylinder 4. When working, the drive motor 10 outputs power to drive the heating cylinder 4 to rotate at a speed of 30-45 revolutions per minute, which agitates the material inside the heating cylinder 4 and makes the material form a uniform material curtain inside the cylinder.

[0056] The end box 5 is located at the end of the heating cylinder 4 near the feed, and is made of 304 stainless steel plate. It is cylindrical in shape and fixed to the vertical beam of the frame 1 with M16 bolts. A 3mm thick oil-resistant rubber gasket is used for sealing at the connection point. A feeding hopper 6 is welded to the inclined surface at the top of the end box 5. The feeding hopper 6 is made of 2mm thick stainless steel plate, bent and welded. A fixing plate 51 is fixed to the side of the end box 5 facing the heating cylinder 4 with M8 bolts. The fixing plate 51 is a 10mm thick circular steel plate with a through hole in the center. The discharge port of the feeding hopper 6 passes through this through hole and extends into the inner cylinder 42, ensuring that the material can smoothly enter the heating cylinder 4 without splashing out, and controlling the distance between the end box 5 and the heating cylinder 4 to prevent material leakage.

[0057] The discharge hopper 7 is fixedly installed at the other end of the heating cylinder 4 away from the feed, and is made of the same stainless steel material as the end box 5. It is fixedly connected to the vertical beam on the other side of the frame 1 by M16 bolts. The bottom discharge section is inclined downwards, and a gate valve can be installed at the discharge port 8 to control the discharge speed. The dried material falls into the receiving bucket below through the discharge port 8.

[0058] The spiral conveyor roller 19 is rotatably mounted within a bearing in the end box 5. The spiral conveyor roller 19 is made of 45# round steel, with spiral blades welded to its surface. The edges of the blades are polished to prevent scratching the material and the inner wall of the heating cylinder 4. The parallelism error between the axis of the spiral conveyor roller 19 and the axis of the heating cylinder 4 does not exceed 0.1 mm / m. The spiral conveyor roller 19 is equipped with a drive assembly that works in conjunction with the heating cylinder 4. When the heating cylinder 4 rotates, the drive assembly drives the spiral conveyor roller 19 to rotate at a speed of 5-10 rpm, pushing the material inside the heating cylinder 4 towards the discharge hopper.

[0059] The clogging mechanism is located in the transition section connecting the discharge hopper 7 and the heating cylinder 4. The overall installation height is 50 mm lower than the axis of the heating cylinder 4. This mechanism works in conjunction with the heating cylinder 4 to break up clumps of material during the material conveying process to the discharge hopper 7, ensuring the uniformity of the particle size of the discharged material.

[0060] The heating cylinder 4 includes an outer cylinder 41 fixed to the inner wall of two rotating rings 3 by M10 bolts. The outer cylinder 41 is made of 5 mm thick steel plate as the outer layer, filled with 50 mm thick aluminum silicate insulation cotton, and the innermost layer is a 0.5 mm thick aluminum foil reflective layer, which can control heat loss to within 5%. Inside the outer cylinder 41, an inner cylinder 42 is fixed by eight stainless steel brackets, which are evenly distributed along the circumference. The inner cylinder 42 is made of 316L stainless steel sheet, and the inner wall is mirror polished with a roughness Ra≤0.8 micrometers, which has good thermal conductivity and corrosion resistance. A sandwich is formed between the outer cylinder 41 and the inner cylinder 42. The sandwich is divided into three sections along the length direction, and each section is equipped with an independent heating wire 43. The heating wire 43 is fixed by a high-temperature resistant insulating bracket. The heating wire 43 is made of 3 mm diameter nickel-chromium alloy wire, wound into a spiral shape, and fixed in the sandwich by ceramic insulators. Each heating wire 43 is connected to an independent temperature controller and solid-state relay, which can monitor the temperature of the inner cylinder 42 in real time through Pt100 thermal resistors, and realize zoned temperature control in the heating cylinder 4. The temperature control accuracy can reach ±1℃. The heating temperature of section I near the end box 5 is controlled at 90℃-110℃, the temperature of the middle section is controlled at 110℃-130℃, and the temperature of section III near the discharge hopper 7 is controlled at 100℃-120℃.

[0061] The drive assembly includes a turntable 20 rotatably mounted on the outer wall of the spiral conveyor roller 19 via a deep groove ball bearing, with chamfered edges. Four support rods 21, made of stainless steel round bars, are welded and fixedly installed between the turntable 20 and the inner cylinder 42, evenly distributed along the circumference of the turntable 20. Double-sided welding is used at the weld joints to ensure strength. A gear II 22 is keyed and fixedly mounted on the outer wall of the spiral conveyor roller 19, engaging with a snap-fit ​​structure on the turntable 20. When the turntable 20 rotates, the snap-fit ​​structure drives the gear II 22 to rotate, thereby driving the spiral conveyor roller 19 to rotate.

[0062] A fixing seat 24, made of L-shaped steel plate, is fixed to the inner wall of the turntable 20 facing the end box 5 by M6 bolts. A cuboid block 25 is slidably mounted through the top of the fixing seat 24, with teeth at the bottom that match the tooth profile of gear II 22. Two guide rods 26, which are optical shafts, are slidably mounted through the top of the block 25, with their bottom ends welded to the fixing seat 24 and their top ends limited by nuts. Springs 27 are fitted onto the outer walls of the guide rods 26, with their ends contacting the bottom of the block 25 and the top of the fixing seat 24 respectively via spring seats. Under the action of the springs 27, the block 25 tends to move downwards, with an initial clearance of 1-2 mm between its bottom and the tooth tip of gear II 22. A guide block 23 is fixedly installed on the side of the fixed plate 51 facing the turntable 20 by M5 bolts. The guide block 23 is an arc-shaped steel plate with an arc that is consistent with the rotation trajectory of the turntable 20. Both ends of the guide block 23 are arc-shaped. When the insert block 25 rotates to the guide block 23, the guide block 23 can push the insert block 25 to move downward so that it is inserted into the tooth groove of the gear II 22.

[0063] The clearing mechanism includes a rotating tube 28 rotatably mounted on one side of the discharge hopper 7. The rotating tube 28 is made of seamless 316L stainless steel pipe, with one end extending into the heating cylinder 4. A swing box I 30, made of 3mm thick stainless steel plate, is welded to the outer wall of the rotating tube 28. A rotating shaft II 29, made of stainless steel round bar, is rotatably mounted inside the rotating tube 28 via bearings. A swing box II 31, whose dimensions are compatible with the swing box I 30, is welded to the outer wall of the rotating tube 28. A clearance groove 33, corresponding to the swing box II 31, is provided on the outer wall of the rotating tube 28, ensuring that the swing box II 31 can swing freely within the clearance groove 33, with a swing angle of up to 60 degrees. A rolling plate 32, made of 5mm thick stainless steel plate with fine anti-slip textured surface, is welded to the inside of the swing box II 31. The rolling plate 32 is arc-shaped, with both ends welded to the swing box II 31 to ensure deformation under stress. Inside the swing box I 30, a baffle 34, which works in conjunction with the rolling plate 32, is fixed with M4 bolts. The surface of the baffle 34 is also machined with anti-slip texture. When the rolling plate 32 contacts the baffle 34, the pressure between them can reach 50-80N, capable of kneading and breaking up agglomerated materials. Furthermore, when the rolling plate 32 hangs freely, the distance between it and the inner cylinder 42 is less than the diameter of the material. A fixing column 37, made of stainless steel round steel, is welded and fixed to the side of the swing box II 31 away from the rotating tube 28. Two evenly distributed limiting blocks 38, made of steel plates, are welded and fixed to the inner wall of the inner cylinder 42. When the limiting blocks 38 rotate to contact the fixing column 37, they can push the fixing column 37 to move, thereby causing the swing box II 31 to swing.

[0064] The axis of the rotating tube 28 is lower than the axis of the heating cylinder 4, so that as the swing box II 31 swings upward, the fixed column 37 and the limiting block 38 gradually move away from each other and eventually separate. After separation, the swing box II 31 swings downward naturally under the action of gravity. When the material passes through the gap between the swing box I 30 and the swing box II 31, the swing box I 30 and the swing box II 31 squeeze the material to perform the block clearing work.

[0065] A drive box 18 is fixed to one side of the discharge hopper 7 by M8 bolts. The drive box 18 is made of gray cast iron HT200 and has bearing housing mounting holes and gear mounting cavities inside. Both the rotating shaft II 29 and the rotating tube 28 are rotatably mounted inside the drive box 18 via angular contact ball bearings. The outer ring of the bearing is fixed by an end cover, and the inner ring is interference-fitted with the shaft to ensure smooth rotation. A gear III 35 is rotatably mounted on one side of the drive box 18 via a bearing. Gears IV 36, which mesh with gear III 35, are keyed to the outer walls of both the rotating tube 28 and the rotating shaft II 29. When the rotating tube 28 rotates, the meshing of gears III 35 and IV 36 drives the rotating shaft II 29 to rotate in the opposite direction, with a transmission ratio of 1:1.

[0066] Near the top of the discharge hopper 7, an exhaust fan 16 is fixedly installed through a flange. The exhaust fan 16 is a centrifugal fan. The air inlet of the exhaust fan 16 is connected to the inside of the discharge hopper 7 via a flexible hose, and the air outlet is connected to a collection bag 17 via a pipe. The collection bag 17 is made of polyester needle-punched felt fabric, and the bag opening is fixed to the pipe with a clamp, which can collect the discharged dust.

[0067] A rotating shaft I11 is rotatably mounted on the crossbeam inside the frame 1 via bearing seats. The rotating shaft I11 is made of 45# round steel and supported at both ends by bearings. Both the rotating shaft I11 and the output end of the drive motor 10 are keyed and fixedly fitted with synchronous pulleys 12, both of which are aluminum alloy synchronous belt pulleys. A synchronous belt 13, made of polyurethane material, is drive-connected to the outer wall of the two synchronous pulleys 12, with the tension controlled at 50-80N during operation. A gear I14 is keyed and fixedly fitted to the outer wall of the rotating shaft I11. A gear ring 15, meshing with gear I14, is bolted to the outer wall of the heating cylinder 4. The gear transmission ensures the smooth rotation of the heating cylinder 4. A power distribution cabinet 9 is also installed on the frame 1. A display screen is located on one side of the power distribution cabinet 9 to display the temperature inside the heating cylinder 4, and temperature and speed adjustment knobs are also provided.

[0068] The device operates as follows: During use, connect the device to a 380V three-phase power supply and start preheating via the button on the distribution cabinet 9. Add wet manganese sulfate material with a moisture content of approximately 15% into the heating cylinder 4 through the feeding hopper 6. The material enters the inner cylinder 42 through the discharge port. Start the heating wire 43 for heating. Set the temperature for each section using the temperature controller. The inner cylinder 42 transfers heat to the material, gradually increasing its temperature. Simultaneously, start the drive motor 10. The output of the drive motor 10 drives the synchronous pulley 12 to rotate, which in turn drives the synchronous pulley 12 on the rotating shaft I11 to rotate via the synchronous belt 13, thus rotating the rotating shaft I11. As the rotating shaft I11 rotates, it drives the heating cylinder 4 to rotate via the meshing gear I14 and gear ring 15. During the rotation of the heating cylinder 4, the material is continuously lifted and scattered inside the cylinder, creating a uniform tumbling motion, ensuring even heating and preventing localized overheating.

[0069] When the heating cylinder 4 rotates, the turntable 20 rotates synchronously via the support rod 21. During the rotation of the turntable 20, the insert block 25 rotates around the axis of the spiral conveying roller 19 via the fixed seat 24. When the insert block 25 contacts the inclined surface of the guide block 23, under the resistance of the guide block 23, the insert block 25 overcomes the elastic force of the spring 27 and moves inward, compressing the spring 27, so that the bottom end of the insert block 25 inserts into the tooth groove of the gear II 22. At this time, as the turntable 20 rotates with the heating cylinder 4, the engagement of the insert block 25 and the gear II 22 drives the spiral conveying roller 19 to rotate. When the spiral conveying roller 19 rotates, the blades push the material towards the discharge hopper 7 at a speed of about 0.5 meters per minute. After the insert block 25 passes the guide block 23, it resets under the action of the spring 27, disengages from the gear II 22, and the spiral conveying roller 19 stops rotating. This cycle is repeated to achieve intermittent material conveying.

[0070] Because heating wire 43 is divided into three sections, the heating temperature of section I, closest to end box 5, is controlled at 90℃-110℃. At this temperature, free water on the surface of the material gradually evaporates without causing localized changes in crystal morphology due to high temperature. Combined with the material's agitation, internal moisture continuously migrates to the surface, achieving uniform drying "from the surface inwards." The temperature of the middle section is controlled at 110℃-130℃, where the material is further dried. The temperature of section III, closest to discharge hopper 7, is controlled at 100℃-120℃ to prevent over-drying of the material and resulting increased dust.

[0071] During the rotation of the heating cylinder 4, the two limiting blocks 38 on the inner wall of the inner cylinder 42 rotate synchronously. When the limiting blocks 38 move to one side of the fixed column 37, continued rotation will cause them to abut against the fixed column 37, driving the swing box I 30 to rotate upward by about 30 degrees. The upward rotation of the swing box I 30 drives the rotating tube 28 to rotate. When the rotating tube 28 rotates, it drives the rotating shaft II 29 to rotate in the opposite direction through the meshing gears III 35 and IV 36. The rotation of the rotating shaft II 29 drives the swing box II 31 to swing in the opposite direction, causing the swing box I 30 and the swing box II 31 to move away from each other, forming an opening. Since the axis of the rotating tube 28 is lower than the axis of the heating cylinder 4, when the limiting blocks 38 rotate upward by a certain angle, they will disengage from the fixed column 37. At this time, the swing box I 30 and the swing box II 31 swing downward under their own gravity, causing the swing box II 31 to swing into the swing box I 30, and the two close.

[0072] When the material moves below the swing box II 31 and swing box I 30, the crushing plate 32 and baffle 34 during the closing process will knead and squeeze the material, breaking the agglomerated material into fine particles. Since the crushing plate 32 is elastic, it can automatically adjust the pressure according to the size of the agglomerated material, avoiding over-crushing and resulting in an increase in fine powder.

[0073] Simultaneously, the exhaust fan 16 is activated, drawing out the water vapor and dust generated inside the heating cylinder 4. The extracted dust is intercepted and collected by the collection bag 17, while clean air is discharged. Through the above process, the material is sequentially pushed into the discharge hopper 7 and finally discharged through the discharge port 8.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A production apparatus for high-purity manganese sulfate, characterized in that, include: Rack (1); Heating cylinder (4) is rotatably mounted on the frame (1) and includes an outer cylinder (41) and an inner cylinder (42). An interlayer is formed between the outer cylinder (41) and the inner cylinder (42). Multiple heating wires (43) are provided in the interlayer for zoned temperature control. A drive motor (10) is fixed on the frame (1), and its output end is connected to the heating cylinder (4) in a transmission manner; An end box (5) is fixed to the frame (1) and set at the feed end of the heating cylinder (4). The end box (5) is provided with a feeding hopper (6). A discharge hopper (7) is fixed to the frame (1) and set at the discharge end of the heating cylinder (4). The discharge hopper (7) is provided with a discharge port (8). A spiral conveyor roller (19) is rotatably mounted on the end box (5); The block clearing mechanism is located inside the discharge hopper (7); The drive motor (10) drives the heating cylinder (4) to rotate to turn the material. The heating cylinder (4) achieves zoned temperature control through multiple heating wires (43). The material is conveyed to the clearing mechanism for crushing via the spiral conveyor roller (19).

2. The apparatus for producing high-purity manganese sulfate according to claim 1, characterized in that, Two sets of guide wheels (2) are rotatably mounted on the frame (1). The same rotating ring (3) is rotatably mounted in each set of guide wheels (2). The heating cylinder (4) is fixedly mounted in the two rotating rings (3).

3. The apparatus for producing high-purity manganese sulfate according to claim 2, characterized in that, The output end of the drive motor (10) is connected to the heating cylinder (4) through a synchronous transmission assembly. The synchronous transmission assembly includes a rotating shaft I (11), a synchronous pulley (12), a synchronous belt (13), a gear I (14), and a gear ring (15). The rotating shaft I (11) is rotatably disposed within the frame (1). The output end of the drive motor (10) and the rotating shaft I (11) are both fixedly fitted with synchronous pulleys (12). The two synchronous pulleys (12) are connected by a synchronous belt (13). The rotating shaft I (11) is fixedly fitted with gear I (14). The outer wall of the heating cylinder (4) is fixedly fitted with a gear ring (15). The gear I (14) meshes with the gear ring (15).

4. The apparatus for producing high-purity manganese sulfate according to claim 1, characterized in that, The spiral conveying roller (19) is connected to the heating cylinder (4) through a drive assembly. The drive assembly includes a turntable (20), support rods (21), and gear II (22). The turntable (20) is rotatably sleeved on the outer wall of the spiral conveying roller (19). Multiple support rods (21) are fixed between the turntable (20) and the inner cylinder (42). Gear II (22) is fixedly sleeved on the outer wall of the spiral conveying roller (19). Gear II (22) is engaged with the turntable (20). When the heating cylinder (4) rotates, it drives the turntable (20) to move through the support rod (21), which in turn drives the spiral conveying roller (19) to rotate intermittently to convey materials.

5. The apparatus for producing high-purity manganese sulfate according to claim 4, characterized in that, A fixed seat (24) is fixedly provided on the inner wall of one side of the turntable (20). A plug (25) is slidably provided on the top of the fixed seat (24). The bottom end of the plug (25) is engaged with the tooth groove of the gear II (22). Two guide rods (26) are slidably provided on the top of the plug (25). The bottom end of the guide rod (26) is fixedly connected to the fixed seat (24). A spring (27) is sleeved on the outer wall of the guide rod (26). The two ends of the spring (27) respectively abut against the bottom of the plug (25) and the top of the fixed seat (24). A guide block (23) is fixedly provided on one side of the end box (5). The guide block (23) is engaged with the plug (25). The insert (25) is inserted into the tooth groove of the gear II (22) under the action of the guide block (23) to drive rotation.

6. The apparatus for producing high-purity manganese sulfate according to claim 1, characterized in that, The clearing mechanism includes a rotating tube (28), a rotating shaft II (29), a swing box I (30), a swing box II (31), and a rolling plate (32). The rotating tube (28) is rotatably disposed on one side of the discharge hopper (7) and extends into the heating cylinder (4). The swing box I (30) is fixedly disposed on the outer wall of the rotating tube (28). The rotating shaft II (29) is rotatably disposed inside the rotating tube (28). The swing box II (31) is fixedly disposed on the outer wall of the rotating shaft II (29). The rolling plate (32) is disposed inside the swing box II (31). The rolling plate (32) is an elastic steel plate. A baffle (34) is fixedly disposed inside the swing box I (30). A clearance groove (33) is opened on the outer wall of the rotating tube (28). The swing box II (31) is exposed through the clearance groove (33).

7. The apparatus for producing high-purity manganese sulfate according to claim 6, characterized in that, Two limiting blocks (38) are fixedly provided on the inner wall of the inner cylinder (42), and a fixing column (37) is fixedly provided on one side of the swing box II (31). The fixing column (37) cooperates with the limiting blocks (38). When the heating cylinder (4) rotates, the limiting block (38) abuts against the fixed column (37) to drive the swing box II (31) to swing, so that the crushing plate (32) and the baffle (34) knead the material.

8. The apparatus for producing high-purity manganese sulfate according to claim 7, characterized in that, The axis of the rotating tube (28) is lower than the axis of the heating cylinder (4).

9. A production apparatus for high-purity manganese sulfate according to any one of claims 6-8, characterized in that, A drive box (18) is fixedly installed on one side of the discharge hopper (7). The rotating shaft II (29) and the rotating tube (28) are rotatably installed in the drive box (18) through bearings. A gear III (35) is rotatably installed on one side of the drive box (18). A gear IV (36) is fixedly sleeved on the outer wall of the rotating tube (28) and the rotating shaft II (29). The gear IV (36) meshes with the gear III (35). When the rotating tube (28) rotates, it drives the rotating shaft II (29) to rotate in the opposite direction through the gear III (35) and gear IV (36).

10. A method for producing high-purity manganese sulfate, using the production apparatus according to any one of claims 1-9, characterized in that, Includes the following steps: S1. The material is fed into the heating cylinder (4) through the feeding hopper (6); S2. Start the drive motor (10) to drive the heating cylinder (4) to rotate, and at the same time start the multi-section heating wire (43) to perform zoned temperature control, wherein the temperature at the feed end is controlled at 90℃-110℃, the temperature in the middle section is controlled at 110℃-130℃, and the temperature at the discharge end is controlled at 100℃-120℃. S3. The heating cylinder (4) rotates and turns the material, and drives the screw conveyor roller (19) to convey the material intermittently through the drive assembly; S4. When the material is conveyed to the discharge hopper (7), the clogging mechanism crushes the clumped material by kneading the crushing plate (32) and the baffle (34). S5. The crushed material is discharged through the discharge port (8).

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