A drying calcination electromagnetic activation kiln

Abstract

The utility model discloses a kind of drying calcination electromagnetic activation kiln, including electromagnetic activation kiln body, electromagnetic activation kiln body is fixed and is communicated with feed pipe, feed pipe top is fixed and is communicated with vertical material guiding pipe, first partition pipe is provided in vertical material guiding pipe, second partition pipe is provided in first partition pipe, vertical material guiding pipe top is fixed with feeding pipe, feeding pipe extends to the end fixed and communicated with storage barrel in vertical material guiding pipe, multiple unloading pipes are fixed and communicated with along its radial equal interval at the bottom of storage barrel, unloading pipe and hopper type distribution plate are fixed, and unloading pipe and first unloading space are communicated with. The drying calcination electromagnetic activation kiln provided in some embodiments of the utility model can avoid a large amount of high-moisture granular material from entering the hearth under the condition of continuous production and large processing capacity, thereby avoiding the problem of sudden temperature drop of the hearth and incomplete calcination.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic activation kiln technology, and in particular to a drying and calcining electromagnetic activation kiln. Background Technology

[0002] With the continuous development of industrial technology, processes such as drying, calcination, and activation are increasingly widely used in the production of chemical, metallurgical, building materials, and environmental protection materials. Traditional drying and calcination equipment typically uses heat sources such as natural gas or coal, which has disadvantages such as high energy consumption, significant pollution, and difficulty in temperature control. In recent years, electromagnetic activation kilns have gradually attracted attention as a new type of heating equipment that is highly efficient, clean, and offers precise temperature control. They utilize the principle of electromagnetic induction to directly heat materials, offering advantages such as high thermal efficiency, no smoke pollution, and flexible temperature control.

[0003] However, in practical applications, especially when processing materials with high moisture content, electromagnetic activation kilns still face significant technical challenges. When materials with high moisture content enter the kiln directly, the rapid evaporation of moisture in the material absorbs a large amount of heat, causing uncontrollable and drastic temperature fluctuations within the furnace. This is particularly problematic in continuous production with large throughput; if a large amount of high-moisture material enters the furnace at once, it can even cause a sudden drop in furnace temperature, affecting heating uniformity, potentially leading to incomplete calcination, and ultimately impacting product quality. Utility Model Content

[0004] When high-moisture-content materials are directly introduced into the furnace of an electromagnetic activation kiln, the rapid evaporation of moisture in the material absorbs a large amount of heat, causing a sudden drop in furnace temperature and potentially leading to incomplete calcination. This invention provides a drying and calcining electromagnetic activation kiln that, through a multi-stage drying design for high-moisture-content granular materials, allows for preliminary drying of these materials before they enter the kiln.

[0005] To achieve the above technical objectives, this utility model provides a drying and calcining electromagnetic activation kiln:

[0006] It includes an electromagnetic activation kiln body, a feed pipe fixed and connected to the kiln body, a vertical guide pipe fixed and connected to the top of the feed pipe, an induced draft fan installed at the top of the vertical guide pipe, a first partition pipe inside the vertical guide pipe, a second partition pipe inside the first partition pipe, a hollow column inside the second partition pipe, a spiral conveying blade fixed to the outside of the hollow column, multiple through holes opened in the hollow column, a first discharge space formed between the second partition pipe and the first partition pipe, multiple material passage grooves equally spaced radially at the bottom of the second partition pipe, and a second discharge space formed between the vertical guide pipe and the first partition pipe. A bucket-shaped material distribution plate is fixed to the top of both the first and second dividing pipes. Multiple first bucket-shaped material guide plates are fixed at equal intervals along the axial direction of the outer side of the first dividing pipe. Multiple second bucket-shaped material guide plates are fixed at equal intervals along the axial direction of the inner wall of the vertical material guide pipe. The multiple first and second bucket-shaped material guide plates are staggered within the second feeding space. Multiple fourth bucket-shaped material guide plates are fixed at equal intervals along the axial direction of the inner wall of the first dividing pipe. Multiple third bucket-shaped material guide plates are fixed at equal intervals along the axial direction of the outer side of the second dividing pipe. The multiple third and fourth bucket-shaped material guide plates are staggered within the first feeding space. Preferably, a feeding pipe is fixed to the top of the vertical material guide pipe. One end of the feeding pipe extending into the vertical material guide pipe is fixed and connected to a storage tank. Multiple feeding pipes are fixed and connected to the bottom of the storage tank at equal intervals along its radial direction. The feeding pipes are fixed to the bucket-shaped material distribution plate and connected to the first feeding space.

[0007] Preferably, the axes of the vertical guide pipe, the first partition pipe, the second partition pipe, and the hollow column coincide, the bottoms of the first partition pipe, the second partition pipe, and the hollow column are on the same horizontal plane, the height of the second partition pipe is greater than the height of the first partition pipe, the height of the hollow column is greater than the height of the second partition pipe, the vertical cross-sectional diameter of the bucket-shaped material distribution plate gradually increases from top to bottom, and the top of the spiral conveying blade extends out from inside the second partition pipe.

[0008] Preferably, a motor housing is fixed to the bottom of the storage hopper, a motor is installed inside the motor housing, and a rotating shaft is rotatably connected inside the motor housing. One end of the rotating shaft is fixed to the output end of the motor. The top of the hollow column is sealed and the bottom is open. The end of the rotating shaft away from the motor is fixed to the top of the hollow column.

[0009] Preferably, a plurality of first supports and a plurality of second supports are fixed at equal intervals along the radial direction on the outer side of the top and the outer side of the bottom of the first partition tube, and the ends of the first supports and the second supports away from the first partition tube are fixed to the inner wall of the vertical guide tube.

[0010] Preferably, the bottom of the vertical guide pipe is provided with an air guide plate, which is located directly below the first partition pipe, the second partition pipe, and the hollow column. A third bracket is fixed at equal intervals along the radial direction on the outer side of the air guide plate. The end of the third bracket away from the air guide plate is fixed to the inner wall of the vertical guide pipe. The air guide plate has multiple air holes. An air inlet pipe is fixed at the bottom of the vertical guide pipe. The end of the air inlet pipe extending into the vertical guide pipe is fixed to and connected to the air guide plate.

[0011] Preferably, a bucket-shaped protective net is fixed to the outer side of the bottom of the first separator tube. The outer diameter of the bucket-shaped protective net is larger than the diameter of the air guide plate, and the diameter of the air guide plate is larger than the diameter of the first separator tube. A first annular net is fixed between the bottom of the first separator tube and the second separator tube. A second annular net is fixed between the bottom of the second separator tube and the bottom of the hollow column. The bottom of the hollow column passes through the second annular net and rotates within the second annular net.

[0012] As can be seen from the above technical solutions, this application has the following beneficial effects:

[0013] 1) When the high moisture content granular material falls in the first feeding space, it will come into contact with the high temperature flue gas, which will cause the high moisture content granular material to be initially dried. Due to the setting of the third and fourth bucket-shaped guide plates, the path of the high moisture content granular material falling in the first feeding space is tortuous, which can prolong the falling time of the high moisture content granular material in the first feeding space, thereby increasing the contact time between the high moisture content granular material and the high temperature flue gas, which can improve the drying effect of the high moisture content granular material.

[0014] 2) When the spiral conveyor blades rotate, they can transport the high moisture content granular material at the bottom of the second partition tube upwards, and the high temperature flue gas can also flow inside the hollow column and be discharged from the through hole, so that the spiral conveyor blades can also dry the high moisture content granular material during the upward conveying process, which further improves the drying effect of the high moisture content granular material.

[0015] 3) After the high moisture content granular material is conveyed to the top of the second dividing pipe by the screw conveyor blades, the high moisture content granular material will roll down from the bucket-shaped distribution plate into the second discharge space. Then, the high moisture content granular material will fall in the second discharge space. When the high moisture content granular material falls onto the first bucket-shaped guide plate and the second bucket-shaped guide plate, it will continue to roll downward. Due to the setting of the first bucket-shaped guide plate and the second bucket-shaped guide plate, the path of the high moisture content granular material falling in the second discharge space is tortuous, which can prolong the falling time of the high moisture content granular material in the second discharge space, and further improve the drying effect of the high moisture content granular material.

[0016] 4) Through multi-level drying design for high moisture content granular materials, the internal moisture of high moisture content granular materials can be dried before entering the electromagnetic activation kiln. This avoids the uncontrollable and drastic temperature fluctuations in the furnace caused by the rapid evaporation of moisture in the material absorbing a large amount of heat when the high moisture content granular materials directly enter the furnace of the electromagnetic activation kiln. More importantly, it avoids the problem of incomplete calcination caused by a sudden drop in furnace temperature if a large amount of high moisture content granular materials enter the furnace in continuous production and large processing volume. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of an electromagnetic activation kiln for drying and calcining provided by this utility model;

[0018] Figure 2 A cross-sectional structural diagram of the vertical feed tube and the first separator tube provided by this utility model;

[0019] Figure 3 A cross-sectional structural diagram of the second partition tube and the motor housing provided by this utility model;

[0020] Figure 4 A cross-sectional structural diagram of the second partition tube and hollow column provided by this utility model;

[0021] Figure 5 Provided by this utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0022] Figure Descriptions: 1. Electromagnetic activation kiln body; 2. Feed pipe; 3. Vertical guide pipe; 4. Exhaust fan; 5. First partition pipe; 6. Second partition pipe; 7. Hollow column; 8. Spiral conveyor blade; 9. Through hole; 10. First discharge space; 11. Second discharge space; 12. Material passage trough; 13. First bucket-shaped guide plate; 14. Second bucket-shaped guide plate; 15. Third bucket-shaped guide plate; 16. Fourth bucket-shaped guide plate; 17. Feeding pipe; 18. Storage hopper; 19. Discharge pipe; 20. Motor box; 21. Motor; 22. Rotating shaft; 23. First support; 24. Second support; 25. Air guide plate; 26. Third support; 27. Air inlet pipe; 28. Air hole; 29. ​​Bucket-shaped protective net; 30. First ring net; 31. Second ring net; 32. Bucket-shaped distribution plate. Detailed Implementation

[0023] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0024] Reference Figure 1-5 :

[0025] In one embodiment of this utility model, a drying and calcining electromagnetic activation kiln is provided, comprising an electromagnetic activation kiln body 1, a feed pipe 2 fixed and connected to the kiln body 1, a vertical guide pipe 3 fixed and connected to the top of the feed pipe 2, an induced draft fan 4 installed at the top of the vertical guide pipe 3, a first partition pipe 5 disposed inside the vertical guide pipe 3, a second partition pipe 6 disposed inside the first partition pipe 5, a hollow column 7 disposed inside the second partition pipe 6, a spiral conveying blade 8 fixed to the outside of the hollow column 7, and multiple through holes 9 opened inside the hollow column 7, forming a first discharge space 10 between the second partition pipe 6 and the first partition pipe 5, and multiple material passage grooves 12 equally spaced along the radial direction at the bottom of the second partition pipe 6, forming a first discharge space 10 between the vertical guide pipe 3 and the first partition pipe 5. The second feeding space 11 is formed. The top of the first dividing pipe 5 and the top of the second dividing pipe 6 are both fixed with a bucket-shaped material distribution plate 32. Multiple first bucket-shaped material guide plates 13 are fixed at equal intervals along the axial direction on the outer side of the first dividing pipe 5. Multiple second bucket-shaped material guide plates 14 are fixed at equal intervals along the axial direction on the inner wall of the vertical material guide pipe 3. Multiple first bucket-shaped material guide plates 13 and multiple second bucket-shaped material guide plates 14 are staggered in the second feeding space 11. Multiple fourth bucket-shaped material guide plates 16 are fixed at equal intervals along the axial direction on the inner wall of the first dividing pipe 5. Multiple third bucket-shaped material guide plates 15 are fixed at equal intervals along the axial direction on the outer side of the second dividing pipe 6. Multiple third bucket-shaped material guide plates 15 and multiple fourth bucket-shaped material guide plates 16 are staggered in the first feeding space 10.

[0026] The vertical guide pipe 3 has an air guide plate 25 at its bottom, located directly below the first partition pipe 5, the second partition pipe 6, and the hollow column 7. A third support 26 is fixed at equal intervals along the radial direction of the air guide plate 25. The end of the third support 26 away from the air guide plate 25 is fixed to the inner wall of the vertical guide pipe 3. Multiple air holes 28 are provided on the air guide plate 25. An air inlet pipe 27 is fixed at the bottom of the vertical guide pipe 3, extending to one end inside the vertical guide pipe 3 and the air guide plate. 25 are fixed and connected. A bucket-shaped protective net 29 is fixed on the outer side of the bottom of the first partition pipe 5. The outer diameter of the bucket-shaped protective net 29 is larger than the diameter of the air guide plate 25. The diameter of the air guide plate 25 is larger than the diameter of the first partition pipe 5. A first annular net 30 is fixed between the bottom of the first partition pipe 5 and the second partition pipe 6. A second annular net 31 is fixed between the bottom of the second partition pipe 6 and the hollow column 7. The bottom of the hollow column 7 passes through the second annular net 31 and rotates within the second annular net 31.

[0027] It should be noted that, since the outer diameter of the bucket-shaped protective net 29 is larger than the diameter of the air guide plate 25, the bucket-shaped protective net 29 plays a blocking role, preventing high moisture content particles from falling onto the air guide plate 25. The diameter of the air guide plate 25 is larger than the diameter of the first partition pipe 5, allowing the high-temperature flue gas discharged through the air holes 28 on the air guide plate 25 to flow into the first feeding space 10, the second feeding space 11, the second partition pipe 6, and the hollow column 7.

[0028] Furthermore, the axes of the vertical guide pipe 3, the first partition pipe 5, the second partition pipe 6, and the hollow column 7 coincide, the bottoms of the first partition pipe 5, the second partition pipe 6, and the hollow column 7 are on the same horizontal plane, the height of the second partition pipe 6 is greater than the height of the first partition pipe 5, the height of the hollow column 7 is greater than the height of the second partition pipe 6, the vertical cross-sectional diameter of the bucket-shaped material distribution plate 32 gradually increases from top to bottom, the top of the spiral conveyor blade 8 extends out from inside the second partition pipe 6, the top of the vertical guide pipe 3 is fixed with a feeding pipe 17, one end of the feeding pipe 17 extending into the vertical guide pipe 3 is fixed and connected to a storage tank 18, the bottom of the storage tank 18 is fixed and connected to multiple discharge pipes 19 at equal intervals along its radial direction, the discharge pipes 19 are fixed to the bucket-shaped material distribution plate 32, and the discharge pipes 19 are connected to the first discharge space 10.

[0029] It should be noted that there is a gap between two adjacent discharge pipes 19. After the material is conveyed to the top of the second dividing pipe 6 by the screw conveyor blade 8, the material will roll on the bucket-shaped distribution plate 32 and fall into the second discharge space 11 through the gap between the adjacent discharge pipes 19. It should be further noted that the vertical cross-sectional diameter of the first bucket-shaped guide plate 13, the third bucket-shaped guide plate 15, and the bucket-shaped protective net 29 gradually increases from top to bottom, while the vertical cross-sectional diameter of the second bucket-shaped guide plate 14 and the fourth bucket-shaped guide plate 16 gradually decreases from top to bottom, so that the material falls onto the first bucket-shaped guide plate 13. The second hopper-shaped guide plate 14, the third hopper-shaped guide plate 15, and the fourth hopper-shaped guide plate 16 will continue to roll downwards. There is a gap between the bottom outer side of the third hopper-shaped guide plate 15 and the inner wall of the first dividing pipe 5, a gap between the bottom outer side of the fourth hopper-shaped guide plate 16 and the outer side of the second dividing pipe 6, a gap between the bottom outer side of the first hopper-shaped guide plate 13 and the inner wall of the vertical guide pipe 3, a gap between the bottom outer side of the second hopper-shaped guide plate 14 and the outer side of the first dividing pipe 5, and a gap between the bottom outer side of the hopper-shaped protective net 29 and the inner wall of the vertical guide pipe 3. These gaps allow materials to pass through.

[0030] Furthermore, a motor housing 20 is fixed to the bottom of the storage hopper 18, and a motor 21 is installed inside the motor housing 20. A rotating shaft 22 is rotatably connected inside the motor housing 20. One end of the rotating shaft 22 is fixed to the output end of the motor 21. The top of the hollow column 7 is sealed and the bottom is open. The end of the rotating shaft 22 away from the motor 21 is fixed to the top of the hollow column 7. Multiple first supports 23 and multiple second supports 24 are fixed at equal intervals along the radial direction on the outer side of the top and bottom of the first dividing tube 5. The ends of the first supports 23 and the second supports 24 away from the first dividing tube 5 are both fixed to the inner wall of the vertical guide tube 3.

[0031] It should be noted that the motor 21 and the induced draft fan 4 in this embodiment are both commercially available conventional devices known to those skilled in the art. The model can be selected or customized according to actual needs. In this embodiment, we only use them without modifying their structure and function. The setting method, installation method and electrical connection method can be debugged and operated by those skilled in the art according to the requirements of the instruction manual, and will not be described in detail here. In addition, a matching control switch is also provided. The installation position of the control switch is selected according to the actual use needs to facilitate the operation and control by the operator.

[0032] In use, the feeding pipe 17 is connected to the discharge port of an external granulation machine, and the air inlet pipe 27 is connected to external equipment used for conveying high-temperature flue gas. After the high-moisture-content material is granulated, it is conveyed to the storage hopper 18 through the feeding pipe 17, and then falls into the first discharge space 10 through the discharge pipe 19. The high-moisture-content granules will gradually roll downwards on multiple third bucket-shaped guide plates 15 and fourth bucket-shaped guide plates 16. When the high-temperature flue gas is conveyed to the air guide plate 25 through the air inlet pipe 27, it will be discharged from the air hole 28. By starting the induced draft fan 4, the high-temperature flue gas is made to move through the vertical guide pipe 3. The material flows upwards, and when the high-moisture-content granular material falls into the first feeding space 10, it comes into contact with the high-temperature flue gas, thus achieving initial drying. Due to the arrangement of the third hopper-shaped guide plate 15 and the fourth hopper-shaped guide plate 16, the path of the high-moisture-content granular material falling into the first feeding space 10 is tortuous, which prolongs the falling time of the high-moisture-content granular material in the first feeding space 10, thereby increasing the contact time between the high-moisture-content granular material and the high-temperature flue gas, and improving the drying effect of the high-moisture-content granular material.

[0033] It should be understood that when the high moisture content granular material falls to the bottom of the first feeding space 10, it will roll from the feed chute 12 into the second partition pipe 6. By starting the motor 21, it drives the hollow column 7 and the screw conveyor blade 8 to rotate. When the screw conveyor blade 8 rotates, it can convey the high moisture content granular material at the bottom of the second partition pipe 6 upward. In addition, the high temperature flue gas can also flow in the hollow column 7 and be discharged from the through hole 9. This allows the screw conveyor blade 8 to be dried while conveying the high moisture content granular material upward, further improving the drying effect of the high moisture content granular material.

[0034] It should also be understood that after the high moisture content granular material is conveyed to the top of the second dividing pipe 6 by the screw conveyor blade 8, the high moisture content granular material will roll from the bucket-shaped distribution plate 32 into the second discharge space 11. Then the high moisture content granular material will fall in the second discharge space 11. When the high moisture content granular material falls onto the first bucket-shaped guide plate 13 and the second bucket-shaped guide plate 14, it will continue to roll downwards. Due to the arrangement of the first bucket-shaped guide plate 13 and the second bucket-shaped guide plate 14, the path of the high moisture content granular material falling in the second discharge space 11 is tortuous, which can prolong the time of the high moisture content granular material falling in the second discharge space 11. This process will also re-dry the high moisture content granular material.

[0035] Furthermore, after the high moisture content granular material undergoes multi-stage drying, it is transported through the feed pipe 2 to the electromagnetic activation kiln body 1 for further drying and calcination. Through the multi-stage drying design of the high moisture content granular material, the internal moisture of the high moisture content granular material can be dried before entering the electromagnetic activation kiln body 1, thus preventing the high moisture content granular material from directly entering the furnace chamber of the electromagnetic activation kiln body 1.

[0036] It should also be understood that, in combination Figure 2-4In its corresponding embodiment, the three-layer conveying space formed by the vertical guide pipe 3, the first partition pipe 5, and the second partition pipe 6 are respectively: the first discharge space 10 formed by the first partition pipe 5 and the second partition pipe 6, the second discharge space 11 formed by the vertical guide pipe 3 and the first partition pipe 5, and the rising space formed by the second partition pipe 6 and the hollow column 7. It should be noted that the first discharge space 10 is located in the middle of the rising space formed by the second partition pipe 6 and the hollow column 7 and the second discharge space 11. The first discharge space 10 is connected to the storage tank 18 through the discharge pipe 19, that is, the material can only fall into the first discharge space 10 when it first falls. Only through this structural design can the material fall into the storage tank 18. After entering the first feeding space 10, the material can enter the second dividing pipe 6 through the feeding chute 12. Then, when the hollow column 7 and the spiral conveyor blade 8 rotate, the material is returned to the top of the second dividing pipe 6. In addition, a bucket-shaped material distribution plate 32 is set at the top of the first dividing pipe 5, the second dividing pipe 6, and the hollow column 7 to guide the returned material into the second feeding space 11 and prevent it from falling into the first feeding space 10. This layout and structural design can realize this "three-stage progressive drying". That is, through the synergistic effect of the three-layer nested structure and the spiral conveyor blade, the "three-stage progressive drying" is realized. This three-stage drying mechanism allows the high moisture content material to be fully pre-dried before entering the kiln, effectively avoiding a sudden drop in furnace temperature.

Claims

1. A drying and calcining electromagnetic activation kiln, comprising an electromagnetic activation kiln body (1), characterized in that, A feed pipe (2) is fixed and connected to the kiln body (1) of the electromagnetic activation kiln. A vertical guide pipe (3) is fixed and connected to the top of the feed pipe (2). An induced draft fan (4) is installed on the top of the vertical guide pipe (3). A first partition pipe (5) is provided inside the vertical guide pipe (3). A second partition pipe (6) is provided inside the first partition pipe (5). A hollow column (7) is provided inside the second partition pipe (6). A spiral conveying blade (8) is fixed to the outside of the hollow column (7). Multiple openings are made inside the hollow column (7). A through hole (9) is formed between the second partition pipe (6) and the first partition pipe (5), forming a first feeding space (10). Multiple feeding grooves (12) are equally spaced along the radial direction at the bottom of the second partition pipe (6), forming a second feeding space (11) between the vertical guide pipe (3) and the first partition pipe (5). A bucket-shaped material distribution plate (32) is fixed together at the top of the first partition pipe (5) and the top of the second partition pipe (6). Multiple first bucket-shaped guides are equally spaced along the axial direction on the outside of the first partition pipe (5). The material plate (13) has multiple second bucket-shaped guide plates (14) fixed at equal intervals along its axial direction on the inner wall of the vertical guide pipe (3). The multiple first bucket-shaped guide plates (13) and multiple second bucket-shaped guide plates (14) are staggered in the second feeding space (11). The first partition pipe (5) has multiple fourth bucket-shaped guide plates (16) fixed at equal intervals along its axial direction on the inner wall of its inner wall. The second partition pipe (6) has multiple third bucket-shaped guide plates (15) fixed at equal intervals along its axial direction on the outer side of its outer wall. The multiple third bucket-shaped guide plates (16) are fixed at equal intervals along its axial direction. Plate (15) and multiple fourth bucket-shaped guide plates (16) are staggered in the first feeding space (10); the top of the vertical guide pipe (3) is fixed with a feeding pipe (17), one end of the feeding pipe (17) extending into the vertical guide pipe (3) is fixed and connected to a storage bucket (18), the bottom of the storage bucket (18) is fixed and connected to multiple feeding pipes (19) at equal intervals along its radial direction, the feeding pipes (19) are fixed to the bucket-shaped distribution plate (32), and the feeding pipes (19) are connected to the first feeding space (10).

2. The drying and calcining electromagnetic activation kiln according to claim 1, characterized in that, The axes of the vertical guide pipe (3), the first partition pipe (5), the second partition pipe (6), and the hollow column (7) coincide. The bottoms of the first partition pipe (5), the second partition pipe (6), and the hollow column (7) are on the same horizontal plane. The height of the second partition pipe (6) is greater than the height of the first partition pipe (5). The height of the hollow column (7) is greater than the height of the second partition pipe (6). The vertical cross-sectional diameter of the bucket-shaped material distribution plate (32) gradually increases from top to bottom. The top of the spiral conveying blade (8) extends out from inside the second partition pipe (6).

3. The drying and calcining electromagnetic activation kiln according to claim 1, characterized in that, The storage hopper (18) has a motor box (20) fixed at the bottom. A motor (21) is installed inside the motor box (20). A rotating shaft (22) is rotatably connected inside the motor box (20). One end of the rotating shaft (22) is fixed to the output end of the motor (21). The hollow column (7) is sealed at the top and open at the bottom. The end of the rotating shaft (22) away from the motor (21) is fixed to the top of the hollow column (7).

4. The drying and calcining electromagnetic activation kiln according to claim 1, characterized in that, The first partition tube (5) has multiple first supports (23) and multiple second supports (24) fixed at equal intervals along its radial direction on the outer top and outer bottom sides. The ends of the first supports (23) and the second supports (24) away from the first partition tube (5) are fixed to the inner wall of the vertical guide tube (3).

5. The drying and calcining electromagnetic activation kiln according to claim 1, characterized in that, The bottom of the vertical guide pipe (3) is provided with an air guide plate (25). The air guide plate (25) is located directly below the first partition pipe (5), the second partition pipe (6), and the hollow column (7). A third bracket (26) is fixed at equal intervals along the radial direction on the outer side of the air guide plate (25). The end of the third bracket (26) away from the air guide plate (25) is fixed to the inner wall of the vertical guide pipe (3). Multiple air holes (28) are opened on the air guide plate (25). An air inlet pipe (27) is fixed at the bottom of the vertical guide pipe (3). The end of the air inlet pipe (27) extending into the vertical guide pipe (3) is fixed and connected to the air guide plate (25).

6. The drying and calcining electromagnetic activation kiln according to claim 5, characterized in that, A bucket-shaped protective net (29) is fixed to the outer side of the bottom of the first partition tube (5). The outer diameter of the bucket-shaped protective net (29) is larger than the diameter of the air guide plate (25). The diameter of the air guide plate (25) is larger than the diameter of the first partition tube (5). A first annular net (30) is fixed between the bottom of the first partition tube (5) and the second partition tube (6). A second annular net (31) is fixed between the bottom of the second partition tube (6) and the hollow column (7). The bottom of the hollow column (7) passes through the second annular net (31) and rotates within the second annular net (31).

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