Continuous drying device for high-purity manganese sulfate

Abstract

The continuous drying device for the high-purity manganese sulfate comprises a steam structure, a drying structure, a feeding structure and a cyclone separator, the drying structure comprises a straight pipe, at least one reducer pipe and a first auger structure, the straight pipe is vertically arranged, the reducer pipe is arranged at the top of the straight pipe, and the first auger structure is arranged at the bottom of the straight pipe. The first auger structure is arranged in the straight pipe, a material inlet is formed in the upper end of the straight pipe, and a steam opening and a coarse material outlet are formed in the lower end of the straight pipe; the feeding structure comprises a feeding hopper, a second packing auger structure and a third packing auger structure, the second packing auger structure is obliquely arranged downwards, one end of the second packing auger structure is connected with the material inlet, the other end of the second packing auger structure is connected with the feeding hopper, one end of the third packing auger structure is connected with the coarse material outlet, and the other end of the third packing auger structure is connected with the second packing auger structure. Through cyclic utilization of tail gas, the impurity introduction probability is reduced, the steel balls can effectively crush large-particle materials, the materials are preheated, and the drying efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of drying devices, and more specifically, to a continuous drying device for high-purity manganese sulfate. Background Art

[0002] In the field of chemical industry and new energy materials, high-purity manganese sulfate is an important basic raw material, and its preparation process has extremely high requirements for the purity and dryness of the product. Patent Publication No. CN210051114U discloses a drying device for manganese sulfate production, including a heat source component, a drying component, a feeding component, a separation component, a dust removal component and an air induction component; the drying component includes a first drying tube, a second drying tube, a second bracket and a transmission tube, the top of the second bracket is fixed with the second drying tube, the top of the second drying tube is welded with the first drying tube, and the flange on one side of the first drying tube fixes the transmission tube; when the conveying component introduces the wet material into the second drying tube, the work of the second motor drives the rotating shaft to rotate, so that the three material trays and three connecting rods on the rotating shaft rotate, at this time, the material is first introduced into the highest material tray, and then the wet material is evenly distributed by the scraper on the connecting rod, and the excess material will be introduced into the next material tray in turn during the rotation process, thereby speeding up the drying of the wet material and reducing the problem of material agglomeration in the drying tube. When the device uses an auger to transport manganese sulfate, the manganese sulfate adheres to the auger, reducing the auger's ability to transport materials. Summary of the invention

[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.

[0004] Another object of the present invention is to provide a continuous drying device for high-purity manganese sulfate, which can prevent manganese sulfate from adhering to the auger and maintain the stable material conveying capacity of the auger.

[0005] In order to achieve these purposes and other advantages according to the present invention, a continuous drying device for high-purity manganese sulfate is provided, comprising a steam structure for providing steam for drying, a drying structure connected to the steam structure to dry manganese sulfate material with steam, a feeding structure for continuously providing the manganese sulfate material to be dried to the drying structure, and a cyclone separator connected to the drying structure to collect the manganese sulfate material, wherein the drying structure comprises a straight pipe, at least one reducer and a first auger structure, wherein the straight pipe is vertically arranged, the reducer is arranged at the top of the straight pipe, the first auger structure is arranged in the straight pipe, the upper end of the straight pipe is provided with a material inlet, and the lower end of the straight pipe is provided with a steam port and a coarse material outlet; The feeding structure comprises a feeding hopper, a second auger structure and a third auger structure, wherein the second auger structure is arranged obliquely downward, one end of the second auger structure is connected to the material inlet, and the other end is connected to the feeding hopper, and one end of the third auger structure is connected to the coarse material outlet, and the other end is connected to the second auger structure; Among them, a plurality of steel structure balls are driven by the first auger structure, the second auger structure and the third auger structure to circulate and roll.

[0006] Preferably, the first auger structure comprises: A first motor, which is arranged below the straight pipe; A first rotating shaft is rotatably fixed in the middle of the straight tube, and the first rotating shaft rotatably passes through the bottom of the straight tube and is connected to the output shaft of the first motor; The twisted blade is spirally arranged on the outer side of the first rotating shaft, and the outer edge of the twisted blade abuts against the inner wall of the straight tube.

[0007] Preferably, the hinged blade is provided with a plurality of through holes, and the diameter of the through holes is smaller than the diameter of the ball.

[0008] Preferably, the reducer has an olive-shaped structure.

[0009] Preferably, the steam structure comprises: A steam superheater, whose output end is connected to the steam port, and the tail gas port of the cyclone separator is connected to the steam superheater through a first pipeline; The steam generator is connected to the steam superheater through a second pipeline to provide steam to the steam superheater.

[0010] Preferably, the steam superheater comprises: a steam heating structure connected to the steam generator via a second pipeline; An airflow heating structure connected to the first induced draft fan through a third pipeline; An exhaust gas heating structure connected to an exhaust gas outlet of the cyclone separator through a first pipeline; a collecting pipe, which is respectively connected to the steam heating structure, the airflow heating structure and the exhaust gas heating structure to collect the steam, the airflow and the exhaust gas, the collecting pipe is connected to the steam port through a fourth pipe, and the fourth pipe is provided with a first flow valve; A shell member, which encloses the steam heating structure, the airflow heating structure, the exhaust gas heating structure and the collecting pipe; A heating component is arranged in the housing member to heat the heat transfer oil filled in the housing member; Among them, the airflow heating structure, the exhaust gas heating structure and the steam heating structure are arranged in sequence, and the steam heating structure is close to the gas outlet of the collecting pipe.

[0011] Preferably, the collecting pipe is connected to the straight pipe through a fifth pipe, the connection between the fifth pipe and the straight pipe is located above the first auger structure, and a second flow valve is provided on the fifth pipe.

[0012] Preferably, a second induced draft fan is provided on the first pipeline.

[0013] Preferably, the steam heating structure includes at least one steam pipe, the airflow heating structure includes at least one airflow pipe, and the exhaust gas heating structure includes at least one exhaust pipe. The steam pipe, airflow pipe, and exhaust pipe are all S-shaped structures, and the first check valve, the second check valve, and the third check valve are respectively provided at the inlets of the steam pipe, the airflow pipe, and the exhaust pipe.

[0014] Preferably, the steam pipe, the air flow pipe and the tail gas pipe are arranged side by side, and several layers of heat conducting plates are arranged between the steam pipe, the air flow pipe and the tail gas pipe to connect and fix the steam pipe, the air flow pipe and the tail gas pipe.

[0015] The present invention includes at least the following beneficial effects: First, by setting a first auger structure in the middle and lower part of the straight tube, the present invention can avoid the accumulation of materials at the bottom of the straight tube on the one hand, and on the other hand, in the process of the downward rotation of the materials, it can extend the heating time of the materials, so that the materials also have sufficient heating time in the straight tube, thereby improving the drying efficiency. Second, by setting steel balls in the first auger structure, the second auger structure, and the third auger structure, the rotation of the auger structure drives the steel balls to rotate, so as to utilize the friction and impact of the steel balls to crush the block-shaped large particles. The heat carried by the steel balls can also preheat the materials in the second auger structure. Third, the present invention uses a steam superheater to superheat the exhaust gas discharged from the cyclone separator, and then re-enters the straight tube to heat the materials. On the one hand, the heat carried by the exhaust gas is fully utilized. On the other hand, the recycling of the exhaust gas can reduce the amount of external airflow introduced, reduce the probability of introducing impurities due to the introduction of external airflow, and help maintain the high purity of manganese sulfate.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a technical solution of the present invention; Figure 2 It is a structural schematic diagram of a superheating structure of a technical solution of the present invention; Figure 3 This is a schematic diagram of the internal structure of a superheating structure according to a technical solution of the present invention.

[0018] 1. Straight pipe; 2. Reducer; 3. First auger; 31. First motor; 32. First rotating shaft; 4. Feed hopper; 5. Second auger; 6. Third auger; 7. Steam structure; 71. Shell; 72. Airflow heating structure; 73. Exhaust gas heating structure; 74. Steam heating structure; 75. Collecting pipe; 76. Steam pipe; 77. Exhaust pipe; 78. Airflow pipe; 8. Steam heater; 9. Cyclone separator; 10. Second induced draft fan; 11. First induced draft fan; 12. Fourth pipeline; 13. Fifth pipeline. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0020] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0021] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial sources unless otherwise specified; in the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, set, or detachably connected, set, or connected and set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in specific circumstances. The orientation or position relationship indicated by the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0022] like Figure 1-3 As shown, the present invention provides a continuous drying device for high-purity manganese sulfate, including a steam structure 7 for providing steam for drying, a drying structure connected to the steam structure 7 to use steam to dry manganese sulfate materials, a feeding structure for continuously providing the drying structure with manganese sulfate materials to be dried, and a cyclone separator 9 for connecting to the drying structure to collect manganese sulfate materials, wherein the drying structure includes a straight pipe 1, at least one reducer 2 and a first auger 3 structure, wherein the straight pipe 1 is vertically arranged, the reducer 2 is arranged at the top of the straight pipe 1, the first auger 3 structure is arranged in the straight pipe 1, the upper end of the straight pipe 1 is provided with a material inlet, and the lower end of the straight pipe 1 is provided with a steam port and a coarse material outlet; The feeding structure includes a feeding hopper 4, a second auger 5 structure and a third auger 6 structure. The second auger 5 structure is arranged obliquely downward, one end of the second auger 5 structure is connected to the material inlet, and the other end is connected to the feeding hopper 4. One end of the third auger 6 structure is connected to the coarse material outlet, and the other end is connected to the second auger 5 structure. Among them, a plurality of steel structure balls circulate and roll under the drive of the first auger 3 structure, the second auger 5 structure, and the third auger 6 structure.

[0023] In the present technical solution, the steam structure 7 is used to provide the steam required for drying. The structure may include components such as a steam generator, a steam pipe 76 and a steam control valve. The high-temperature steam generated by the steam generator is transported to the drying structure through the steam pipe 76, and the steam control valve is used to adjust the flow and pressure of the steam to meet the needs of the drying process. The straight pipe 1 is vertically arranged to accommodate the manganese sulfate material to be dried and allow steam to pass through. The material of the straight pipe 1 should have good high temperature resistance and corrosion resistance to ensure long-term stable operation. The reducer 2 is arranged at the top of the straight pipe 1, and its function is to change the flow direction of the steam, so that the steam and the material are fully mixed, increase the contact area between the steam and the material, and improve the drying efficiency. The shape and size of the reducer 2 can be customized according to actual needs. The first auger 3 structure is arranged in the straight pipe 1, and the coarse material is transported downward in the straight pipe 1 through a rotating motion. The coarse material is heated during the downward transportation process, and enters the second auger 5 structure through the third auger 6 structure to preheat the material transported by the second auger 5 structure. Preheating the material helps to achieve uniform drying of the material and prevent the material from accumulating or clogging in the straight pipe 1. The driving motor and reducer of the first auger 3 structure should be installed outside the straight pipe 1 and connected to the auger blades through a transmission shaft. The feed hopper 4 is used to store the manganese sulfate material to be dried and allow the material to flow into the second auger 5 structure by gravity. The second auger 5 structure is arranged obliquely downward, with one end connected to the material inlet and the other end connected to the feed hopper 4. Through rotation, the second auger 5 structure continuously and evenly transports the material from the feed hopper 4 to the material inlet. One end of the third auger 6 structure is connected to the coarse material outlet and the other end is connected to the second auger 5 structure. The third auger 6 structure is used to transport the material output from the second auger 5 back to the first auger 3. A material inlet is provided at the upper end of the straight pipe 1 for receiving the manganese sulfate material to be dried from the feed structure. A steam port and a coarse material outlet are provided at the lower end of the straight pipe 1. The steam port is used to receive steam from the steam structure 7, and the coarse material outlet is used to discharge the blocky manganese sulfate material. In order to further improve the material conveying efficiency and drying effect, the present invention sets a plurality of steel structure balls in the first auger 3 structure, the second auger 5 structure and the third auger 6 structure. These balls circulate and roll in the auger structure under the push of the auger blades, which can play the role of pressurizing and crushing block materials. The impact of the steel balls on the auger blades can also prevent the materials from adhering to the auger blades.

[0024] When in use, first start the steam structure 7 to generate a high-temperature steam flow, and transport it to the steam port of the drying structure through the steam pipe 76. The steam flow transports the smaller particle size materials in the straight pipe 1 transported by the second auger 5 to the reducer 2 for drying. After drying in the straight pipe 1 and the reducer 2, the material becomes lighter and enters the cyclone separator 9 with the air flow. The larger particle size materials are transported downward by the first auger 3 and returned to the second auger 5 through the third auger 6. The larger particle size materials are crushed by the friction of the steel balls during the transportation process, and the impact of the steel balls also prevents the materials from sticking to the auger blades. It can be seen from the description of the above structure and working principle that the continuous drying device for high-purity manganese sulfate of the present invention has the advantages of simple structure, convenient operation, high drying efficiency, and uniform material transportation.

[0025] In another technical solution, the first auger 3 structure includes: A first motor 31, which is arranged below the straight tube 1; A first rotating shaft 32 is rotatably fixed in the middle of the straight tube 1. The first rotating shaft 32 rotatably passes through the bottom of the straight tube 1 and is connected to the output shaft of the first motor 31. The twisted blade is spirally arranged on the outside of the first rotating shaft 32 , and the outer edge of the twisted blade abuts against the inner wall of the straight tube 1 .

[0026] In the present technical solution, it is difficult for the airflow to blow the block-shaped and large-particle materials out of the straight pipe 1 into the reducer 2. The first auger 3 transports the block-shaped and large-particle materials downward, and then returns to the straight pipe 1 through the third auger 6 and the second auger 5. During the transportation process of the auger, the large-particle materials are hit and rubbed by the steel balls and become small particles. When this part of the material enters the second auger 5, the material in the second auger 5 can also be preheated, which helps to increase the temperature of the material entering the straight pipe 1 and improve the drying efficiency.

[0027] In another technical solution, the spiral blade is provided with a plurality of through holes, and the diameter of the through holes is smaller than the diameter of the ball. The through holes facilitate the steam flow at the bottom to flow upward through the through holes, thereby increasing the contact area between the steam flow and the material. The steam flow enters from the bottom of the straight tube 1, blowing the small particles to move upward along the spiral blade of the first auger 3, and the large particles to move downward along the spiral blade, while the small particles move upward in the spiral under the action of the airflow and enter the reducer 2, and are finally collected by the cyclone separator 9. The large particles return to the straight tube 1 through the third auger 6 and the second auger 5.

[0028] In another technical solution, the reducer 2 is an olive-shaped structure. The reducer 2 of the olive-shaped structure can change the flow rate and flow direction of the steam airflow, so that the steam airflow is fully in contact with the material, which helps to improve the drying efficiency.

[0029] In another technical solution, the steam structure 7 includes: A steam superheater, the output end of which is connected to the steam port, and the tail gas port of the cyclone separator 9 is connected to the steam superheater through a first pipeline; The steam generator is connected to the steam superheater through a second pipeline to provide steam to the steam superheater.

[0030] In the present technical solution, the cyclone separator 9 is used to separate solid particles from the gas. Its tail gas outlet is connected to the steam superheater through a first pipe, so that the tail gas treated by the cyclone separator 9 can flow into the steam superheater to superheat the tail gas, and re-enter the straight pipe 1 to heat the material. The steam generator is connected to the steam superheater through a second pipe, and its main function is to provide sufficient steam to the steam superheater. The steam generator may contain a heating element or a combustion chamber inside, which is used to heat water to a boiling state to generate steam. The steam generator continuously supplies steam to the steam superheater, and the cyclone separator 9 ensures that the gas entering the superheater is relatively pure, avoiding the accumulation of particulate impurities and causing pipe blockage or failure in the superheater.

[0031] In another technical solution, the steam superheater comprises: a steam heating structure 74 connected to the steam generator via a second pipeline; The airflow heating structure 72 is connected to the first induced draft fan 11 through a third pipeline; An exhaust gas heating structure 73, which is connected to the exhaust gas outlet of the cyclone separator 9 through a first pipeline; A collecting pipe 75, which is respectively connected to the steam heating structure 74, the airflow heating structure 72 and the exhaust gas heating structure 73 to collect the steam, airflow and exhaust gas, and the collecting pipe 75 is connected to the steam port through the fourth pipeline 12, and the fourth pipeline 12 is provided with a first flow valve; A shell 71 encapsulates the steam heating structure 74, the airflow heating structure 72, the exhaust gas heating structure 73 and the collecting pipe 75; A heating component, which is disposed in the housing member 71 to heat the heat transfer oil filled in the housing member 71; The airflow heating structure 72 , the exhaust gas heating structure 73 and the steam heating structure 74 are arranged in sequence, and the steam heating structure 74 is close to the gas outlet of the collecting pipe 75 .

[0032] In this technical solution, steam, airflow and tail gas are heated by the corresponding heating structures and then collected in the collecting pipe 75 to form high-pressure and high-temperature unsaturated steam. When the high-pressure and high-temperature unsaturated steam enters the straight pipe 1, the material in the straight pipe 1 is heated and dried. The heating component can be an electric heating component. After being cleaned, the external gas enters the airflow heating structure through the first induced draft fan.

[0033] In another technical solution, the collecting pipe 75 is connected to the straight pipe 1 through the fifth pipe 13 , the connection between the fifth pipe 13 and the straight pipe 1 is located above the first auger 3 structure, and the fifth pipe 13 is provided with a second flow valve.

[0034] In the present technical solution, high-temperature and high-pressure steam is introduced again above the first auger 3 structure to provide sufficient heat to further heat and dry the small-particle material.

[0035] In another technical solution, the first pipeline is provided with a second induced draft fan 10. The second induced draft fan 10 is provided to enhance the circulation of the airflow.

[0036] In another technical solution, the steam heating structure 74 includes at least one steam pipe 76, the airflow heating structure 72 includes at least one airflow pipe 78, and the tail gas heating structure 73 includes at least one tail gas pipe 77. The steam pipe 76, the airflow pipe 78, and the tail gas pipe 77 are all S-shaped structures, and the inlets of the steam pipe 76, the airflow pipe 78, and the tail gas pipe 77 are respectively provided with a first check valve, a second check valve, and a third check valve, and the outlets of the steam pipe 76, the airflow pipe 78, and the tail gas pipe 77 are all connected to the collecting pipe 75. The S-shaped pipe is used to increase the heating area, so that the steam, airflow, and tail gas can be better heated.

[0037] In another technical solution, the steam pipe 76, the airflow pipe 78, and the tail gas pipe 77 are arranged side by side, and several layers of heat conducting plates are arranged between the steam pipe 76, the airflow pipe 78, and the tail gas pipe 77 to connect and fix the steam pipe 76, the airflow pipe 78, and the tail gas pipe 77. The steam pipe 76, the airflow pipe 78, and the tail gas pipe 77 are connected by the heat conducting plates, so that the temperatures of the steam pipe 76, the airflow pipe 78, and the tail gas pipe 77 are consistent, and the compactness of the structure is also improved.

[0038] In another technical solution, a pressure sensing device is provided at the top of the straight pipe 1, the pressure sensing device is connected to the controller, the controller is connected to the first induced draft fan 11, and the third pipeline is provided with a fourth check valve; wherein, when the pressure in the straight pipe 1 reaches a preset value, the first induced draft fan 11 stops working. By providing a pressure sensor to control the air pressure in the straight pipe 1, it is convenient to regulate the air pressure in the straight pipe 1 to maintain the stability of the air pressure in the straight pipe 1 so that the particle size of the material outputted remains consistent.

[0039] In another technical solution, a branch pipe is provided on the first pipeline, an electric-controlled valve is provided on the branch pipe, the electric-controlled valve is connected to the controller, and the straight pipe 1 is connected to the bag dust collector; wherein, when the pressure in the straight pipe 1 exceeds a preset value, the controller controls the electric-controlled valve to open to discharge part of the airflow, thereby reducing the pressure in the straight pipe 1.

[0040] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A continuous drying device for high-purity manganese sulfate, comprising a steam structure for providing steam for drying, a drying structure connected to the steam structure for drying manganese sulfate material with steam, a feeding structure for continuously providing the manganese sulfate material to be dried to the drying structure, and a cyclone separator connected to the drying structure for collecting the manganese sulfate material, characterized in that: The drying structure comprises a straight pipe, at least one reducer and a first auger structure, wherein the straight pipe is vertically arranged, the reducer is arranged at the top of the straight pipe, the first auger structure is arranged in the straight pipe, a material inlet is arranged at the upper end of the straight pipe, and a steam outlet and a coarse material outlet are arranged at the lower end of the straight pipe; The feeding structure comprises a feeding hopper, a second auger structure and a third auger structure, wherein the second auger structure is arranged obliquely downward, one end of the second auger structure is connected to the material inlet, and the other end is connected to the feeding hopper, and one end of the third auger structure is connected to the coarse material outlet, and the other end is connected to the second auger structure; Among them, a plurality of steel structure balls are driven by the first auger structure, the second auger structure and the third auger structure to circulate and roll.

2. The continuous drying device for high-purity manganese sulfate according to claim 1, characterized in that: The first auger structure comprises: A first motor, which is arranged below the straight pipe; A first rotating shaft is rotatably fixed in the middle of the straight tube, and the first rotating shaft rotatably passes through the bottom of the straight tube and is connected to the output shaft of the first motor; The twisted blade is spirally arranged on the outer side of the first rotating shaft, and the outer edge of the twisted blade abuts against the inner wall of the straight tube.

3. The continuous drying device for high-purity manganese sulfate according to claim 2, characterized in that: The hinged blade is provided with a plurality of through holes, and the diameter of the through holes is smaller than the diameter of the ball.

4. The continuous drying device for high-purity manganese sulfate according to claim 1, characterized in that: The reducer has an olive-shaped structure.

5. The continuous drying device for high-purity manganese sulfate according to claim 1, characterized in that: The steam structure comprises: A steam superheater, whose output end is connected to the steam port, and the tail gas port of the cyclone separator is connected to the steam superheater through a first pipeline; The steam generator is connected to the steam superheater through a second pipeline to provide steam to the steam superheater.

6. The continuous drying device for high-purity manganese sulfate according to claim 5, characterized in that: The steam superheater consists of: a steam heating structure connected to the steam generator via a second pipeline; An airflow heating structure connected to the first induced draft fan through a third pipeline; An exhaust gas heating structure connected to an exhaust gas outlet of the cyclone separator through a first pipeline; a collecting pipe, which is respectively connected to the steam heating structure, the airflow heating structure and the exhaust gas heating structure to collect and mix the steam, the airflow and the exhaust gas, the collecting pipe is connected to the steam port through a fourth pipe, and the fourth pipe is provided with a first flow valve; A shell member, which encloses the steam heating structure, the airflow heating structure, the exhaust gas heating structure and the collecting pipe; A heating component is arranged in the housing member to heat the heat transfer oil filled in the housing member; Among them, the airflow heating structure, the exhaust gas heating structure and the steam heating structure are arranged in sequence, and the steam heating structure is close to the gas outlet of the collecting pipe.

7. The continuous drying device for high-purity manganese sulfate according to claim 6, characterized in that: The collecting pipe is connected to the straight pipe through a fifth pipe, the connection between the fifth pipe and the straight pipe is located above the first auger structure, and a second flow valve is arranged on the fifth pipe.

8. The continuous drying device for high-purity manganese sulfate according to claim 6, characterized in that: The first pipeline is provided with a second induced draft fan.

9. The continuous drying device for high-purity manganese sulfate according to claim 6, characterized in that: The steam heating structure includes at least one steam pipe, the airflow heating structure includes at least one airflow pipe, and the exhaust gas heating structure includes at least one exhaust pipe. The steam pipe, the airflow pipe, and the exhaust pipe are all S-shaped structures, and the first check valve, the second check valve, and the third check valve are respectively provided at the inlets of the steam pipe, the airflow pipe, and the exhaust pipe.

10. The continuous drying device for high-purity manganese sulfate according to claim 9, characterized in that: The steam pipe, the air flow pipe and the tail gas pipe are arranged side by side, and a plurality of layers of heat conducting plates are arranged between the steam pipe, the air flow pipe and the tail gas pipe to connect and fix the steam pipe, the air flow pipe and the tail gas pipe.

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