A grinding device for overhaul slag of electrolytic aluminum and its grinding method

Abstract

The present invention discloses a grinding device for overhaul slag of electrolytic aluminum and a grinding method thereof, which relates to the technical field of grinding devices. The present invention includes a device bottom plate, on the top of which a main grinding chamber is fixedly connected. Buckle holes are formed on both sides of the main grinding chamber. An iron plate is fixedly connected to the top of the main grinding chamber. Removable device plates are abutted against both sides of the main grinding chamber. A connecting buckle is fixedly connected to one side of each of the two removable device plates. The radius of the connecting buckle is the same as that of the buckle hole. Sliding grooves are formed on the other side of each of the two removable device plates. An auxiliary fixing plate is slidably connected to the outer surface wall of the removable device plate and the main grinding chamber. In the present invention, by setting the main grinding chamber, then separating the removable device plate from it, using the auxiliary fixing plate to be slidably connected to the sliding groove for fixation, and using the auxiliary fixing ring to slidably hoop the connection between the main grinding chamber and the removable device plate. In order to prevent the misalignment between the main grinding chamber and the removable device plate, a buckle hole and a connecting buckle are also provided as a limiting structure.

Description

Technical Field

[0001] The present invention belongs to the technical field of grinding devices, and particularly relates to a grinding device for overhaul slag of electrolytic aluminum and a grinding method thereof. Background Art

[0002] The waste cell lining removed during the overhaul of aluminum electrolytic cells mainly includes cathode carbon blocks, cathode steel bars, silicon carbide side blocks, refractory bricks, ramming paste, insulating bricks, anti-seepage materials, refractory cement, insulating boards, etc., which are collectively referred to as "overhaul slag". The reason for classifying overhaul slag as hazardous waste is its high fluorine content and small amount of cyanide. As long as the fluorine is fixed and the cyanide is oxidized, the overhaul slag will become general solid waste. The overhaul slag contains about 1%-1.8% of lithium salts, which can be sold as lithium-containing resources. Before separating the lithium salts from the overhaul slag, it is necessary to perform a grinding operation on the overhaul slag.

[0003] In the prior art, such as: CN112337604B, a crushing and grinding integrated device, includes a power mechanism, a transmission box mechanism, and a crushing box mechanism. The device can discharge powder while performing crushing, can switch to a grinding and collecting mode, can perform unloading, and can ensure the stability of power. The power mechanism is connected to the transmission box mechanism, the transmission box mechanism is connected to the crushing box mechanism, and the power mechanism is connected to the crushing box mechanism.

[0004] However, there are still certain problems when using the above and other typical prior arts:

[0005] 1. When the grinding device of this patent performs grinding operations, some crushed slag will inevitably enter the device. And due to the integrated design of the device, there will be a problem that the device is not convenient to disassemble, indirectly resulting in the problem that it is difficult to clean the debris.

[0006] 2. During the grinding process of the grinding device of this patent, the gap between the grinding discs cannot be adjusted, and the grinding discs cannot be replaced. As a result, the precision of the grinding discs cannot be adjusted, which will cause the particles after grinding to not meet the later requirements.

[0007] 3. When the grinding device of this patent performs grinding, it cannot grind some items with moisture. And after grinding items with some moisture, not only the grinding effect cannot be achieved, but also it is extremely easy to adhere to the surface of the grinding disc, which is not conducive to the use of the grinding device.

[0008] 4. During the grinding process of the grinding device of this patent, it is extremely easy to generate some relatively fine powders that enter the air. These powders often do not meet the national emission standards and are also extremely easy to endanger the health of the surrounding workers. Summary of the Invention

[0009] The object of the present invention is to provide a grinding device for overhaul slag of electrolytic aluminum and its grinding method, so as to solve the existing problems: the inconvenient disassembly of the grinding device, the inability to adjust the grinding accuracy of the grinding device, the inability to grind items with moisture, and the problem of floating powder generated by the grinding device.

[0010] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0011] The present invention relates to a grinding device for overhaul slag of electrolytic aluminum and its grinding method, including a device bottom plate. A grinding chamber main body is fixedly connected to the top of the device bottom plate. Clamping holes are opened on both sides of the grinding chamber main body. An iron plate is fixedly connected to the top of the grinding chamber main body. Removable device plates are abutted against both sides of the grinding chamber main body. A connecting buckle is fixedly connected to one side of each of the two removable device plates. The radius of the connecting buckle is the same as that of the clamping hole. Sliding grooves are opened on the other side of each of the two removable device plates. An auxiliary fixing plate is slidably connected to the outer surface wall of the removable device plate and the grinding chamber main body. An auxiliary fixing ring is slidably connected to the side surface of the removable device plate and the grinding chamber main body. A magnetic attraction block is fixedly connected to the inner surface wall of the auxiliary fixing ring. The magnetic attraction block abuts against the iron plate. A hydraulic device bracket is fixedly connected to the other side of the removable device plate. A hydraulic auxiliary plate is fixedly connected to one end of the hydraulic device bracket.

[0012] Further, a grinding hydraulic device is installed on the inner surface wall of the hydraulic device bracket. There are four grinding hydraulic devices. The output ends of the four grinding hydraulic devices are fixedly connected to an activity chamber. The activity chamber is slidably connected to the removable device plate. A grinding motor is installed on the side surface of the activity chamber. The output end of the grinding motor is fixedly connected to a grinding disc chamber. A connecting plate is fixedly connected to the side surface of the grinding disc chamber. Six connecting holes are opened on the connecting plate.

[0013] Further, a strong magnetic block is fixedly connected to the inner surface wall of the connecting plate. An iron disc is fixedly connected to the side surface of the strong magnetic block. An iron grinding disc connection auxiliary piece abuts against the side surface of the iron disc. A fixing column is fixedly connected to one side of the iron grinding disc connection auxiliary piece. A grinding disc main body is fixedly connected to the other side of the iron grinding disc connection auxiliary piece.

[0014] Further, a drying bin is communicated with the side surface of the grinding chamber main body. A feed hopper penetrates through the top of the drying bin. A conveyor belt motor is installed on the side surface of the drying bin. The output end of the conveyor belt motor is fixedly connected to a conveyor belt rotating rod.

[0015] Further, the conveyor belt rotating rod is arranged on the inner surface wall of the drying bin. The conveyor belt rotating rod is rotatably connected to the drying bin. A conveyor belt main belt is drivingly connected to the outer surface wall of the conveyor belt rotating rod.

[0016] Further, a resistance thermal dehumidification lamp is installed on the inner wall of the drying bin, a humidity detection controller is installed on the inner wall of the drying bin, the humidity detection controller is electrically connected to the conveyor belt motor, and a humidity detection probe is electrically connected to the bottom of the humidity detection controller.

[0017] Further, a wet treatment chamber is communicated with the side of the grinding chamber main body, a two-way fan is installed through the inner wall of the wet treatment chamber of the grinding chamber main body, and a drawer cabinet is slidably connected to the inner wall of the wet treatment chamber.

[0018] Further, a liquid storage tank is fixedly connected to the top of the wet treatment chamber, there are two liquid storage tanks and their positions are opposite, liquid extraction pumps are installed on the sides of both liquid storage tanks, and the output ends of the liquid extraction pumps are all communicated with a transport pipe.

[0019] Further, one end of the transport pipe is communicated with an atomizing pipe, one end of the atomizing pipe is communicated with an atomizing nozzle, and the atomizing nozzle is fixedly connected to the inner wall of the wet treatment chamber.

[0020] A grinding method for overhaul slag of electrolytic aluminum includes the following steps:

[0021] Step 1: When the device needs to be disassembled for cleaning, first remove the auxiliary fixing ring. At this time, the iron plate will be separated from the magnetic attraction block, then pull and remove the slidably connected auxiliary fixing plate, and finally remove the detachable device plate and the device arranged thereon, so that the main body of the grinding chamber can be exposed, thus facilitating the cleaning of the internal structure of the device.

[0022] Step 2: When the detachable device plate is removed, the main body of the grinding disk will be exposed, which is convenient for replacing the main body of the grinding disk. When the main body of the grinding disk needs to be replaced, pull out the main body of the grinding disk for replacement, and then replace the appropriate main body of the grinding disk. Insert the fixing column into the connecting hole to prevent the main body of the grinding disk from moving out of position during grinding, and the set strong magnetic block can firmly adsorb the iron grinding disk connecting auxiliary parts to prevent them from falling off.

[0023] Step 3: The overhaul slag to be ground is poured into the drying bin along the feed hopper for drying operation. During the drying operation, the two-way fan is started to pump the wet air along the main body of the grinding chamber into the wet treatment chamber, avoiding the accumulation of wet air and forming water droplets, which will affect the grinding operation.

[0024] Step 4: When the overhaul slag is ground, fine powder will inevitably be generated. Start the two-way fan to suck the powder into the wet treatment chamber, and then start the liquid extraction pump to spray the liquid into the wet treatment chamber, so that the powder gets wet and increases in weight and then falls onto the drawer cabinet. After grinding, pull out the drawer cabinet for cleaning.

[0025] The present invention has the following beneficial effects:

[0026] 1. The grinding device of the present invention is provided with a main grinding chamber body, and then the detachable device plate is separated from it. The auxiliary fixing plate is slidably connected to the sliding groove for fixation, and the auxiliary fixing ring is used to slidably hoop the connection between the main grinding chamber body and the detachable device plate. In order to prevent the misalignment of the main grinding chamber body and the detachable device plate, a snap hole and a connection buckle are also provided as a limiting structure.

[0027] 2. The grinding device of the present invention adsorbs the iron grinding disc connecting auxiliary parts through the set strong magnetic block, and uses the fixing column inserted into the connection hole as a structure to prevent the grinding disc from misaligning. And a grinding hydraulic device is set to push the main body of the grinding disc to adjust the grinding disc gap. The advantage of such a design is that different grinding discs can be adjusted for use to make the grinding range wider, and adjusting the grinding disc gap can well grind out particles of appropriate size.

[0028] 3. The grinding device of the present invention is provided with a resistance heat dehumidification lamp, which uses the principle of resistance heat generation and reflection to remove the moisture inside the overhaul slag. Then the generated wet air will be pumped out by the two-way fan and stored in the wet treatment chamber to avoid being affected by cold liquefaction and affecting the use of the device.

[0029] 4. The grinding device of the present invention uses the two-way fan to pump the floating powder generated during the grinding process into the wet treatment chamber, and then extracts the liquid through the liquid extraction pump for atomization and mixes it with the floating powder to increase the weight of the floating powder and make it sink. The advantage of such a design is to humidify and treat the powder to prevent it from entering the air and polluting the air.

[0030] Of course, it is not necessary for any product implementing the present invention to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a front view of the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the main body of the grinding disc of the present invention;

[0035] Figure 4 It is a schematic diagram of the structure of the detachable device plate of the present invention;

[0036] Figure 5 Schematic structural diagram of the activity room of the present invention;

[0037] Figure 6 Schematic sectional view of the activity room of the present invention;

[0038] Figure 7 Schematic structural diagram of the main body of the grinding chamber of the present invention;

[0039] Figure 8 Schematic structural diagram of the drying bin of the present invention;

[0040] Figure 9 Schematic sectional view of the drying bin of the present invention;

[0041] Figure 10 Schematic structural diagram of the wet treatment chamber of the present invention;

[0042] Figure 11 Schematic structural diagram of the pull-out cabinet of the present invention;

[0043] Figure 12 Schematic sectional view of the wet treatment chamber of the present invention.

[0044] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0045] 1. Main body of the grinding chamber; 2. Drying bin; 3. Feed hopper; 4. Auxiliary fixing ring; 5. Connecting buckle; 6. Removable device plate; 7. Auxiliary fixing plate; 8. Magnetic attraction block; 9. Device bottom plate; 10. Hydraulic auxiliary plate; 11. Hydraulic device support; 12. Grinding hydraulic device; 13. Grinding motor; 14. Main body of the grinding disc; 15. Activity room; 16. Sliding groove; 17. Auxiliary connecting piece for the iron grinding disc; 18. Connecting plate; 19. Connecting hole; 20. Grinding disc chamber; 21. Fixed column; 22. Strong magnetic block; 23. Iron plate; 24. Buckle hole; 25. Iron plate; 26. Wet treatment chamber; 27. Liquid storage tank; 28. Conveyor belt motor; 29. Atomizing pipe; 30. Pull-out cabinet; 31. Conveyor belt rotating rod; 32. Resistance heat dehumidification lamp; 33. Humidity detection controller; 34. Humidity detection probe; 35. Main conveyor belt; 36. Liquid extraction pump; 37. Two-way fan; 38. Transportation pipe; 39. Atomizing nozzle. Detailed implementation manners

[0046] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0047] Please refer toFigures 1-12 As shown, the present invention is a grinding device for overhaul slag of electrolytic aluminum and its grinding method. Embodiment 1

[0048] According to Figure 1 , Figure 2 , Figure 4 and 7 As shown, a grinding device for overhaul slag of electrolytic aluminum and its grinding method include a device bottom plate 9. A grinding chamber main body 1 is fixedly connected to the top of the device bottom plate 9. Buckle holes 24 are provided on both sides of the grinding chamber main body 1. An iron plate 25 is fixedly connected to the top of the grinding chamber main body 1. Removable device plates 6 are abutted against both sides of the grinding chamber main body 1. Connecting buckles 5 are fixedly connected to one side of each of the two removable device plates 6. The connecting buckles 5 have the same radius as the buckle holes 24. Sliding grooves 16 are provided on the other side of each of the two removable device plates 6. Auxiliary fixing plates 7 are slidably connected to the outer surface of the removable device plates 6 and the grinding chamber main body 1. Auxiliary fixing rings 4 are slidably connected to the side surfaces of the removable device plates 6 and the grinding chamber main body 1. Magnetic attraction blocks 8 are fixedly connected to the inner surface of the auxiliary fixing rings 4. The magnetic attraction blocks 8 are abutted against the iron plate 25. A hydraulic bracket 11 is fixedly connected to the other side of the removable device plate 6. One end of the hydraulic bracket 11 is fixedly connected to a hydraulic auxiliary plate 10.

[0049] During operation, when it is necessary to disassemble the removable device plate 6, first remove the auxiliary fixing ring 4. At this time, the iron plate 25 will be separated from the magnetic attraction block 8. Then slide and remove the auxiliary fixing plate 7. At this time, disassembling the removable device plate 6 can separate the buckle hole 24 from the connecting buckle 5, and then the removable device plate 6 can be separated from the grinding chamber main body 1, and then the inside of the grinding chamber main body 1 can be cleaned. Embodiment 2

[0050] According to Figure 1 , Figure 4 , Figure 5 and 6 As shown, a grinding hydraulic device 12 is installed on the inner surface of the hydraulic bracket 11. There are four grinding hydraulic devices 12. The output ends of the four grinding hydraulic devices 12 are fixedly connected to an activity chamber 15. The activity chamber 15 is slidably connected to the removable device plate 6. A grinding motor 13 is installed on the side surface of the activity chamber 15. The output end of the grinding motor 13 is fixedly connected to a grinding disc chamber 20. A connecting plate 18 is fixedly connected to the side surface of the grinding disc chamber 20. Six connecting holes 19 are provided on the connecting plate 18.

[0051] A strong magnetic block 22 is fixedly connected to the inner surface of the connecting plate 18. An iron disc 23 is fixedly connected to the side surface of the strong magnetic block 22. An iron grinding disc connecting auxiliary part 17 is abutted against the side surface of the iron disc 23. A fixing column 21 is fixedly connected to one side of the iron grinding disc connecting auxiliary part 17. A grinding disc main body 14 is fixedly connected to the other side of the iron grinding disc connecting auxiliary part 17.

[0052] During operation, when the detachable device plate 6 is removed, the grinding disc main body 14 can be replaced. First, pull the grinding disc main body 14 to separate the iron grinding disc connection auxiliary 17 from the strong magnet block 22. Then, at this time, the fixed column 21 is separated from the connection hole 19. Subsequently, replace the required grinding disc main body 14, and then insert the fixed column 21 into the connection hole 19 again. At this time, the strong magnet block 22 will be connected to the iron grinding disc connection auxiliary 17. Embodiment III

[0053] According to Figure 1 、 Figure 8 and Figure 9 As shown, a drying bin 2 is connected to the side of the grinding chamber main body 1. A feed hopper 3 penetrates through the top of the drying bin 2. A conveyor belt motor 28 is installed on the side of the drying bin 2, and the output end of the conveyor belt motor 28 is fixedly connected to a conveyor belt rotating rod 31.

[0054] The conveyor belt rotating rod 31 is arranged on the inner wall of the drying bin 2. The conveyor belt rotating rod 31 is rotatably connected to the drying bin 2, and the outer wall of the conveyor belt rotating rod 31 is drivingly connected to a conveyor belt main belt 35.

[0055] A resistance thermal dehumidification lamp 32 is installed on the inner wall of the drying bin 2. A humidity detection controller 33 is installed on the inner wall of the drying bin 2. The humidity detection controller 33 is electrically connected to the conveyor belt motor 28, and a humidity detection probe 34 is electrically connected to the bottom of the humidity detection controller 33.

[0056] During operation, first pour the overhaul slag into the feed hopper 3, and then start the resistance thermal dehumidification lamp 32 to dehumidify the overhaul slag. The wet air generated by dehumidification will be drawn into the wet treatment chamber 26 by the two-way fan 37, so as to avoid the wet air liquefying when it meets cold and adhering to the inner wall of the device. Embodiment IV

[0057] According to Figure 1 、 Figure 10 Figure 11 and Figure 12 As shown, a wet treatment chamber 26 is connected to the side of the grinding chamber main body 1. The grinding chamber main body 1 is installed with a two-way fan 37 through the inner wall of the wet treatment chamber 26, and a drawer cabinet 30 is slidably connected to the inner wall of the wet treatment chamber 26.

[0058] A liquid storage tank 27 is fixedly connected to the top of the wet treatment chamber 26. There are two liquid storage tanks 27 and their positions are opposite. Liquid extraction pumps 36 are installed on the sides of both liquid storage tanks 27, and the output ends of the liquid extraction pumps 36 are both communicated with a transport pipe 38.

[0059] One end of the transport pipe 38 is connected to an atomizing pipe 29. One end of the atomizing pipe 29 is connected to an atomizing nozzle 39, and the atomizing nozzle 39 is fixedly connected to the inner wall of the wet treatment chamber 26.

[0060] During operation, the two-way fan 37 blows the floating powder during the grinding process into the wet treatment chamber 26. Then, the liquid extraction pump 36 is started to extract the liquid from the liquid storage tank 27 along the transport pipe 38, and finally enters the atomizing pipe 29. Under the action of high flow velocity, the liquid will be broken into small water droplets and sprayed out along the atomizing nozzle 39, and finally mixed with the floating powder. Example Five

[0061] A grinding method for overhaul slag of electrolytic aluminum includes the following steps:

[0062] Step 1: When the device needs to be disassembled for cleaning, first remove the auxiliary fixing ring 4. At this time, the iron plate 25 will be separated from the magnetic attraction block 8. Then slide and remove the auxiliary fixing plate 7. Finally, remove the easily detachable device plate 6 together with the devices arranged thereon, so that the main body 1 of the grinding chamber is exposed, and then clean the internal structure of the device.

[0063] Step 2: When the easily detachable device plate 6 is removed, the main body 14 of the grinding disc will be exposed, which is convenient for replacing the main body 14 of the grinding disc. When the main body 14 of the grinding disc needs to be replaced, pull out the main body 14 of the grinding disc for replacement. Then replace the appropriate main body 14 of the grinding disc and insert the fixing column 21 into the connecting hole 19 to prevent the main body 14 of the grinding disc from moving out of position during grinding. And the strong magnetic block 22 provided can firmly adsorb the iron grinding disc connecting auxiliary part 17 to prevent it from falling off.

[0064] Step 3: The overhaul slag to be ground is poured into the drying bin 2 along the feed hopper 3 for drying operation. During the drying operation, the two-way fan 37 is started to draw the wet air into the wet treatment chamber 26 along the main body 1 of the grinding chamber, to prevent the accumulation of wet air and the formation of water droplets, which may affect the grinding operation.

[0065] Step 4: When the overhaul slag is ground, fine powder will inevitably be generated. Start the two-way fan 37 to suck the powder into the wet treatment chamber 26, and then start the liquid extraction pump 36 to spray the liquid into the wet treatment chamber 26, so that the powder is wetted and its weight is increased, and then it falls onto the pull-out cabinet 30. After the grinding is completed, pull out the pull-out cabinet 30 for cleaning.

[0066] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0067] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A grinding device for overhaul slag of electrolytic aluminum, comprising a device bottom plate (9), characterized in that: At the top of the device base plate (9) is fixedly connected a main grinding chamber (1). On both sides of the main grinding chamber (1) are provided snap holes (24). At the top of the main grinding chamber (1) is fixedly connected an iron plate (25). On both sides of the main grinding chamber (1) are abutted detachable device plates (6). On one side of each of the two detachable device plates (6) is fixedly connected a connecting buckle (5). The connecting buckle (5) has the same radius as the snap hole (24). On the other side of each of the two detachable device plates (6) is provided a sliding groove (16). A auxiliary fixing plate (7) is slidably connected to the outer surface wall of the detachable device plate (6) and the main grinding chamber (1). A auxiliary fixing ring (4) is slidably connected to the side surface of the detachable device plate (6) and the main grinding chamber (1). Fixedly connected to the inner surface wall of the auxiliary fixing ring (4) is a magnetic attraction block (8). The magnetic attraction block (8) abuts against the iron plate (25). On the other side of the detachable device plate (6) is fixedly connected a hydraulic device bracket (11). At one end of the hydraulic device bracket (11) is fixedly connected a hydraulic auxiliary plate (10); Installed in the inner surface wall of the hydraulic device bracket (11) is a grinding hydraulic device (12). There are four grinding hydraulic devices (12). The output ends of the four grinding hydraulic devices (12) are fixedly connected to an activity chamber (15). The activity chamber (15) is slidably connected to the detachable device plate (6). Installed on the side surface of the activity chamber (15) is a grinding motor (13). The output end of the grinding motor (13) is fixedly connected to a grinding disc chamber (20). Fixedly connected to the side surface of the grinding disc chamber (20) is a connecting plate (18). On the connecting plate (18) are provided connecting holes (19). There are six connecting holes (19); Fixedly connected to the inner surface wall of the connecting plate (18) is a strong magnetic block (22). Fixedly connected to the side surface of the strong magnetic block (22) is an iron disc (23). The side surface of the iron disc (23) abuts against an iron grinding disc connection auxiliary part (17). On one side of the iron grinding disc connection auxiliary part (17) is fixedly connected a fixing column (21). On the other side of the iron grinding disc connection auxiliary part (17) is fixedly connected a main grinding disc body (14).

2. The grinding device for overhaul slag of electrolytic aluminum according to claim 1, wherein: Connected to the side surface of the main grinding chamber (1) is a drying bin (2). Penetrating through the top of the drying bin (2) is a feed hopper (3). Installed on the side surface of the drying bin (2) is a conveyor belt motor (28). The output end of the conveyor belt motor (28) is fixedly connected to a conveyor belt rotating rod (31).

3. The grinding device for overhaul slag of electrolytic aluminum according to claim 2, characterized in that: The conveyor belt rotating rod (31) is arranged on the inner surface wall of the drying bin (2). The conveyor belt rotating rod (31) is rotationally connected to the drying bin (2). The outer surface of the conveyor belt rotating rod (31) is drivingly connected to a conveyor belt main belt (35).

4. A grinding device for overhaul slag of electrolytic aluminum according to claim 3, characterized in that: Installed on the inner surface wall of the drying bin (2) is a resistance heat dehumidification lamp (32). Installed on the inner surface wall of the drying bin (2) is a humidity detection controller (33). The humidity detection controller (33) is electrically connected to the conveyor belt motor (28). Electrically connected to the bottom of the humidity detection controller (33) is a humidity detection probe (34).

5. The grinding device for overhaul slag of electrolytic aluminum according to claim 4, characterized in that: A wet treatment chamber (26) is connected to the side of the grinding chamber main body (1). A two-way fan (37) is installed on the inner wall of the grinding chamber main body (1) through the inner wall of the wet treatment chamber (26). A drawer cabinet (30) is slidably connected to the inner wall of the wet treatment chamber (26).

6. The grinding device for overhaul slag of electrolytic aluminum according to claim 5, characterized in that: A liquid storage tank (27) is fixedly connected to the top of the wet treatment chamber (26). There are two liquid storage tanks (27) and they are opposite in position. Liquid extraction pumps (36) are installed on the sides of both liquid storage tanks (27). The output ends of the liquid extraction pumps (36) are all connected to a transport pipe (38).

7. A grinding device for overhaul slag of electrolytic aluminum according to claim 6, characterized in that: One end of the transport pipe (38) is connected to an atomizing pipe (29). One end of the atomizing pipe (29) is connected to an atomizing nozzle (39). The atomizing nozzle (39) is fixedly connected to the inner wall of the wet treatment chamber (26).

8. A grinding method for overhaul slag of electrolytic aluminum, applicable to the grinding device for overhaul slag of electrolytic aluminum described in claim 7 above, characterized in that: It includes the following steps: Step 1: When the device needs to be disassembled for cleaning, first remove the auxiliary fixing ring (4). At this time, the iron plate (25) will be separated from the magnetic attraction block (8). Then slide and remove the auxiliary fixing plate (7). Finally, remove the easily detachable device plate (6) together with the devices arranged thereon, so that the grinding chamber main body (1) can be exposed, thus facilitating the cleaning of the internal structure of the device; Step 2: When the easily detachable device plate (6) is removed, the grinding disc main body (14) will be exposed, which is convenient for replacing the grinding disc main body (14). When the grinding disc main body (14) needs to be replaced, pull out the grinding disc main body (14) and replace it. Then insert the fixing column (21) into the connection hole (19) to prevent the grinding disc main body (14) from shifting during grinding. And the set strong magnetic block (22) can firmly adsorb the iron grinding disc connection auxiliary part (17) to prevent it from falling off; Step 3: The overhaul slag to be ground is poured into the drying bin (2) along the feed hopper (3) for drying operation. During the drying operation, the two-way fan (37) is started to draw the wet air along the grinding chamber main body (1) into the wet treatment chamber (26), avoiding the accumulation of wet air and thus forming water droplets that affect the grinding operation; Step 4: When the overhaul slag is being ground, fine powder will inevitably be generated. Start the two-way fan (37) to suck the powder into the wet treatment chamber (26). Then start the liquid extraction pump (36) to spray the liquid into the wet treatment chamber (26), so that the powder gets wet and increases in weight and then falls onto the drawer cabinet (30). After the grinding is finished, pull out the drawer cabinet (30) for cleaning.

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