Powdery granular dangerous waste cooling equipment and using method thereof

Abstract

The invention relates to the technical field of cooling equipment, in particular to powdery granular dangerous waste cooling equipment and a using method thereof.The powdery granular dangerous waste cooling equipment comprises a first supporting seat and a second supporting seat, a barrel is movably installed between the first supporting seat and the second supporting seat, and a cooling structure is arranged on the barrel; the cooling structure comprises a feeding device fixedly installed on one side of the first supporting base, a cooling water tank fixedly installed between the first supporting base and the second supporting base is arranged at the bottom of the barrel, a cooling device is installed at the bottom of the cooling water tank, a spraying device is installed at the top of the barrel, and a plurality of air collecting structures are fixedly installed on the spraying device. A transmission mechanism connected with the barrel is arranged on one side of the second supporting base, a discharging mechanism is arranged on one side of the barrel, and spiral blades are fixedly installed in the barrel. Through the arrangement of the cooling structure, the cooling speed of materials can be increased, and the cooling efficiency and effect of the barrel are effectively improved under the complementation of various structures.

Description

Technical Field

[0001] The invention relates to a cooling device for powdery and granular hazardous waste, in particular to a cooling device for powdery and granular hazardous waste and a use method thereof, belonging to the technical field of cooling devices. Background Art

[0002] Powdered and granular hazardous waste in the environment mainly uses the atmosphere, soil and water as media, and enters the human body through ingestion, inhalation and skin absorption, causing harm to human health. Incineration is an important means of treating powdered and granular hazardous waste. After incineration, the waste will form clinker with a higher temperature, which will need to be cooled later.

[0003] The clinker after incineration needs to be cooled by a rotary cooler, which is also called a drum cooler. The lifting plate installed on the inner wall of the drum continuously turns the material over to achieve uniform cooling. It can be used to cool powdered and granular materials. However, the heat dissipation structure of the rotary cooler is single, and the cooling speed of the material is slow. The temperature of the cooled clinker is still high. At the same time, the water vapor generated by cooling and heat dissipation on the surface of the equipment is difficult to dissipate quickly, and the heat dissipation effect on the material is not ideal.

[0004] Therefore, it is urgent to improve to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a cooling device for powdered and granular hazardous waste and a method for using the same. By setting a cooling structure, the cooling speed of the material can be accelerated. The cooling water trough set at the bottom of the cylinder can perform heat exchange to cool the material. The cooling and cooling device set at the bottom of the cooling water trough can accelerate the cooling of the water in the cooling water trough. After the cooling speed of the water is improved, the cooling efficiency of the cylinder can be further improved. At the same time, a spray device is set on the top of the cylinder to further cool it. The setting of the air collecting structure can absorb the water vapor generated by the cooling water trough and the spray device during cooling, thereby accelerating the air flow on the surface of the cylinder and making the heat dissipate faster. With the complementary nature of various structures, the cooling efficiency and effect of the cylinder are effectively improved.

[0006] In order to achieve the above object, the main technical solutions adopted by the present invention include: A cooling device for powdered and granular hazardous waste, comprising a first support seat and a second support seat, a cylinder is movably installed between the first support seat and the second support seat, a cooling structure is arranged on the cylinder, the cooling structure comprises a feeding device fixedly installed on one side of the first support seat, a cooling water trough fixedly installed between the first support seat and the second support seat is arranged at the bottom of the cylinder, a cooling device is installed at the bottom of the cooling water trough, a spray device is installed at the top of the cylinder, a plurality of air collecting structures are fixedly installed on the spray device, a transmission mechanism connected to the cylinder is arranged on one side of the second support seat, a discharging mechanism is arranged on one side of the cylinder, and spiral blades are fixedly installed inside the cylinder.

[0007] Preferably, the feeding device includes a feeding pipe fixedly mounted on the first supporting seat, a transmission shaft is movably mounted inside the feeding pipe, a plurality of diverter plates are evenly and fixedly mounted on the surface of the transmission shaft, and a first motor connected to the transmission shaft is fixedly mounted on the surface of the feeding pipe.

[0008] Preferably, the cooling device comprises an air compressor fixedly mounted on the first support seat, and a pipeline connected to the air compressor is fixedly mounted on the bottom of the cooling water tank.

[0009] Preferably, the spray device includes a fixing frame fixedly mounted on the top of the first supporting seat and the second supporting seat, a water pipe is fixedly mounted between the two fixing frames, and a spray head is evenly fixedly mounted on the bottom of the water pipe.

[0010] Preferably, the air collecting structure includes an air duct fixedly installed on the top of the water pipe, a fan is fixedly installed on the top of the air duct, a first delivery pipe is fixedly installed on one side of the fan, a second delivery pipe is fixedly installed on one side of the cooling water trough, and a condenser is fixedly installed between the first delivery pipe and the second delivery pipe.

[0011] Preferably, the transmission mechanism includes a large gear fixedly mounted on the cylinder, a second motor is fixedly mounted on the surface of the second support seat, a small gear meshing with the large gear is fixedly mounted on the output end of the second motor, and a gear cover sleeved on the outside of the large gear is fixedly mounted on the second support seat.

[0012] Preferably, the discharging mechanism comprises a material collecting bin movably mounted on one side of the cylinder, a material discharging pipe is arranged at the bottom of the material collecting bin, and a dust removal pipe is fixedly mounted on the top of the material collecting bin.

[0013] Preferably, a support plate fixedly mounted on the second support seat is provided below the collecting bin, and a collecting box is slidably mounted on the support plate.

[0014] Preferably, a fixing rod is fixedly mounted on the surface of the support plate, a first magnetic block is fixedly mounted on the fixing rod, and a second magnetic block that is attracted to the first magnetic block is fixedly mounted on the surface of the collection box.

[0015] Preferably, a method for using a cooling device for powdery and granular hazardous waste comprises the following steps: Step 1: Put the powdery and granular waste into the cylinder from the feeding device, start the transmission mechanism to drive the cylinder to rotate, so that the spiral blades inside the cylinder push the material; Step 2: During the rotation of the cylinder, the cooling water tank at the bottom cools down the cylinder, and at the same time, the spray device at the top of the cylinder is started, and the water supply system supplies water to the spray device, so that the spray device sprays the surface of the cylinder, and together with the cooling water tank, assists the cylinder in cooling down; Step 3: After starting the air collecting structure, the water vapor evaporated in the cooling water tank and the water vapor evaporated during the spraying of the spraying device can be extracted, which speeds up the air flow on the surface of the cylinder and accelerates the heat dissipation; Step 4: Start the cooling device to deliver pressurized air into the cooling water tank to accelerate the heat dissipation and rapid cooling in the cooling water tank. After the heat in the cooling water tank is rapidly cooled, the cooling of the cylinder is accelerated; Step 5: Under the pushing of the spiral blades on the material and the cooling effect of multiple cooling structures, the material cooled in the cylinder is discharged from the discharging mechanism.

[0016] The present invention has at least the following beneficial effects: By setting up the cooling structure, the cooling speed of the material can be accelerated. The cooling water trough set at the bottom of the cylinder can perform heat exchange to cool the material. The cooling and cooling device set at the bottom of the cooling water trough can accelerate the cooling of the water in the cooling water trough. After the cooling speed of the water is increased, the cooling efficiency of the cylinder can be further improved. At the same time, a spray device is set on the top of the cylinder to further cool it. The setting of the wind collecting structure can absorb the water vapor generated by the cooling water trough and the spray device during cooling, thereby accelerating the air flow on the surface of the cylinder and making the heat dissipate faster. With the complementary nature of various structures, the cooling efficiency and effect of the cylinder are effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the feed pipe of the present invention; Figure 3 It is a schematic diagram of the nozzle structure of the present invention; Figure 4 It is a schematic diagram of the air duct structure of the present invention; Figure 5 It is a schematic diagram of the spiral blade structure of the present invention; Figure 6 It is a schematic diagram of the gear cover structure of the present invention; Figure 7 It is a schematic diagram of the structure of the discharge pipe of the present invention; Figure 8 It is a schematic diagram of the structure of the collection box of the present invention.

[0018] In the figure, 1-first support seat; 2-second support seat; 3-cylinder; 4-cooling structure; 5-feeding device; 6-cooling water tank; 7-cooling and temperature reduction device; 8-spraying device; 9-wind collecting structure; 10-transmission mechanism; 11-discharging mechanism; 12-spiral blade; 13-feeding pipe; 14-transmission shaft; 15-dividing plate; 16-first motor; 17-air compressor; 18-pipeline; 19-fixed frame; 20-water pipe; 21-nozzle; 22-air duct; 23-fan; 24-first conveying pipe; 25-second conveying pipe; 26-condenser; 27-large gear; 28-second motor; 29-small gear; 30-gear cover; 31-collecting bin; 32-discharging pipe; 33-dust removal pipe; 34-support plate; 35-collecting box; 36-fixing rod; 37-first magnetic block; 38-second magnetic block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] like Figure 1-Figure 8 As shown, this embodiment provides an embodiment of a cooling device for powdered and granular hazardous waste and a method of using the same.

[0021] A powdery and granular hazardous waste cooling device comprises a first support seat 1 and a second support seat 2, a cylinder 3 is movably installed between the first support seat 1 and the second support seat 2, a cooling structure 4 is arranged on the cylinder 3, the cooling structure 4 comprises a feeding device 5 fixedly installed on one side of the first support seat 1, a cooling water tank 6 fixedly installed between the first support seat 1 and the second support seat 2 is arranged at the bottom of the cylinder 3, a cooling device 7 is installed at the bottom of the cooling water tank 6, a spray device 8 is installed on the top of the cylinder 3, a plurality of air collecting structures 9 are fixedly installed on the spray device 8, a transmission mechanism 10 connected to the cylinder 3 is arranged on one side of the second support seat 2, a discharging mechanism 11 is arranged on one side of the cylinder 3, and a The spiral blades 12 can accelerate the cooling speed of the material through the setting of the cooling structure 4. The cooling water trough 6 set at the bottom of the cylinder 3 can perform heat exchange to cool the material. The cooling and cooling device 7 set at the bottom of the cooling water trough 6 can accelerate the cooling of the water in the cooling water trough 6. After the cooling speed of the water is improved, the cooling efficiency of the cylinder 3 can be further improved. At the same time, the spray device 8 is set on the top of the cylinder 3 to further cool it. The setting of the air collecting structure 9 can absorb the water vapor generated by the cooling water trough 6 and the spray device 8 during cooling, thereby accelerating the air flow on the surface of the cylinder 3 and making the heat dissipate faster. With the complementary nature of various structures, the cooling efficiency and effect of the cylinder 3 are effectively improved.

[0022] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the feeding device 5 includes a feeding pipe 13 fixedly mounted on the first supporting seat 1, a transmission shaft 14 is movably mounted inside the feeding pipe 13, a plurality of diverter plates 15 are evenly fixedly mounted on the surface of the transmission shaft 14, a first motor 16 connected to the transmission shaft 14 is fixedly mounted on the surface of the feeding pipe 13, a cooling device 7 includes an air compressor 17 fixedly mounted on the first supporting seat 1, a pipeline 18 connected to the air compressor 17 is fixedly mounted at the bottom of the cooling water tank 6, a spray device 8 includes a fixing frame 19 fixedly mounted on the top of the first supporting seat 1 and the second supporting seat 2, a water pipe 20 is fixedly mounted between the two fixing frames 19, a nozzle 21 is evenly fixedly mounted on the bottom of the water pipe 20, an air collecting structure 9 includes an air duct 22 fixedly mounted on the top of the water pipe 20, a fan 23 is fixedly mounted on the top of the air duct 22, a first delivery pipe 24 is fixedly mounted on one side of the fan 23, a second delivery pipe 25 is fixedly mounted on one side of the cooling water tank 6, and a condenser 26 is fixedly mounted between the first delivery pipe 24 and the second delivery pipe 25. By setting the feed pipe 13, the transmission shaft 14, the diverter plate 15 and the first motor 16, the first motor 16 is started to drive the transmission shaft 14 and the diverter plate 15 to rotate inside the feed pipe 13, and the multiple diverter plates 15 can divert the input powdery and granular materials to fall, thereby avoiding the accumulation and blockage of the materials in the feed device 5. By setting the air compressor 17 and the pipeline 18, the air compressor 17 can inhale the outside air for pressurization, and then transport the pressurized air to the cooling water tank 6 through the spray device 8. Under the impact of the gas, the alternation of cold and hot water can be accelerated, and the heat dissipation can also be accelerated. Through the fixed frame 19, the water pipe 20 and the nozzle 21 The setting of arranging multiple nozzles 21 on the top of the cylinder 3 can make the spraying of the cylinder 3 more uniform, so that the sprayed water can fully cover the cylinder 3, thereby improving the efficiency of heat dissipation. Through the setting of the air duct 22, the fan 23, the first delivery pipe 24, the second delivery pipe 25 and the condenser 26, the multiple fans 23 can absorb water vapor through the air duct 22 after being started, thereby accelerating the air flow on the surface of the cylinder 3 and improving the efficiency of temperature dissipation. At the same time, under the action of the first delivery pipe 24, the second delivery pipe 25 and the condenser 26, the water vapor can be cooled into liquid and transported to the cooling water tank 6, which plays a recycling function and reduces the waste of water resources.

[0023] In this embodiment, Figure 1 , Figure 6 , Figure 7 and Figure 8As shown, the transmission mechanism 10 includes a large gear 27 fixedly mounted on the cylinder 3, a second motor 28 is fixedly mounted on the surface of the second support seat 2, a small gear 29 meshing with the large gear 27 is fixedly mounted on the output end of the second motor 28, a gear cover 30 sleeved on the outside of the large gear 27 is fixedly mounted on the second support seat 2, and the discharging mechanism 11 includes a collection bin 31 movably mounted on one side of the cylinder 3, a discharging pipe 32 is arranged at the bottom of the collection bin 31, a dust removal pipe 33 is fixedly mounted on the top of the collection bin 31, a support plate 34 fixedly mounted on the second support seat 2 is arranged below the collection bin 31, a collecting box 35 is slidably mounted on the support plate 34, a fixing rod 36 is fixedly mounted on the surface of the support plate 34, a first magnetic block 37 is fixedly mounted on the fixing rod 36, and a second magnetic block 38 adsorbed by the first magnetic block 37 is fixedly mounted on the surface of the collecting box 35. Through the arrangement of the large gear 27, the second motor 28, the small gear 29 and the gear cover 30, the small gear 29 drives the large gear 27 to rotate, so that the cylinder 3 can rotate at a low speed, which fully improves the cooling time of the material in the cylinder 3 and indirectly increases the quality of the material cooling. The arrangement of the gear cover 30 can protect the large gear 27. Through the arrangement of the collecting bin 31, the discharge pipe 32, the dust removal pipe 33, the support plate 34 and the collecting box 35, the collecting bin 31 can guide the discharged material to be discharged outward from the dust removal pipe 33. The discharge pipe 32 arranged on the top of the collecting bin 31 can perform dust removal to avoid affecting the environment during discharge. The arrangement of the collecting box 35 facilitates the collection of materials. Through the arrangement of the fixing rod 36, the first magnetic block 37 and the second magnetic block 38, the collecting box 35 can be fixed under the adsorption of the first magnetic block 37 and the second magnetic block 38 to avoid the loosening and falling of the collecting box 35 to affect the collection.

[0024] In this embodiment, Figure 1-Figure 8 As shown, a method for using a cooling device for powdery and granular hazardous waste includes the following steps: Step 1: Powdered and granular waste is put into the cylinder 3 from the feeding device 5, and the transmission mechanism 10 is started to drive the cylinder 3 to rotate, so that the spiral blades 12 inside the cylinder 3 push the material; Step 2: During the rotation of the cylinder 3, the cooling water tank 6 at the bottom cools the cylinder 3, and at the same time, the spray device 8 at the top of the cylinder 3 is started, and the water supply system supplies water to the spray device 8, so that the spray device 8 sprays the surface of the cylinder 3, and together with the cooling water tank 6, assists the cylinder 3 in cooling down; Step 3: After starting the air collecting structure 9, the water vapor evaporated in the cooling water tank 6 and the water vapor evaporated when the spraying device 8 sprays can be extracted, which accelerates the air flow on the surface of the cylinder 3 and accelerates the heat dissipation; Step 4: Start the cooling device 7 to deliver pressurized air into the cooling water tank 6 to accelerate the heat dissipation and rapid cooling in the cooling water tank 6. After the heat in the cooling water tank 6 is rapidly cooled, the cooling of the cylinder 3 is accelerated; Step 5: Under the pushing of the spiral blades 12 on the material and the cooling effect of multiple cooling structures, the material cooled in the cylinder 3 is discharged from the discharging mechanism 11 .

[0025] In this embodiment, if Figure 1-Figure 8 As shown, the working process of a powdery granular hazardous waste cooling device and a method of using the same provided in this embodiment is as follows: Step 1: Put the material into the feeding device 5 and transport it to the inside of the cylinder 3. The diverter plate 15 in the feeding device 5 can divert the material and transport it to the cylinder 3 to avoid blockage. Start the second motor 28 to drive the large gear 27 to rotate through the small gear 29, so that the large gear 27 drives the cylinder 3 to rotate, and then the spiral blade 12 inside the cylinder 3 pushes the material to move; Step 2: During the rotation of the cylinder 3, the cooling water tank 6 cools the bottom of the cylinder 3, and the spray device 8 is started to spray the cylinder 3 to cool the top of the cylinder 3; Step 3: Then start the air collecting structure 9 to absorb and recover the water vapor generated by evaporation, and accelerate the air flow on the surface of the cylinder 3 to dissipate heat more quickly. The cooled material is finally discharged from the discharging mechanism 11.

[0026] In summary, in this embodiment, according to a powdered granular hazardous waste cooling device and a method of using the same, by setting the feed pipe 13, the transmission shaft 14, the diverter plate 15 and the first motor 16, the first motor 16 is started to drive the transmission shaft 14 and the diverter plate 15 to rotate inside the feed pipe 13, and the plurality of diverter plates 15 can divert the input powdered granular materials to fall, thereby avoiding the accumulation and blockage of the materials in the feed device 5. By setting the air compressor 17 and the pipeline 18, the air compressor 17 can inhale the outside air for pressurization, and then the pressurized air is sprayed through the spray device 8. The air is transported to the cooling water tank 6, and the impact of the gas can speed up the alternation of hot and cold water, and also speed up the heat dissipation. By setting the fixing frame 19, the water pipe 20 and the nozzle 21, a plurality of nozzles 21 are set on the top of the cylinder 3, so that the spraying of the cylinder 3 can be more uniform, so that the sprayed water can fully cover the cylinder 3, and the efficiency of heat dissipation is improved. By setting the air duct 22, the fan 23, the first delivery pipe 24, the second delivery pipe 25 and the condenser 26, the plurality of fans 23 can absorb water vapor through the air duct 22 after being started, so as to speed up the air flow on the surface of the cylinder 3 and improve The efficiency of heat dissipation is improved. At the same time, under the action of the first conveying pipe 24, the second conveying pipe 25 and the condenser 26, the water vapor can be cooled into liquid and conveyed to the cooling water tank 6, which plays a recycling function and reduces the waste of water resources. Through the arrangement of the large gear 27, the second motor 28, the small gear 29 and the gear cover 30, the small gear 29 drives the large gear 27 to rotate, so that the cylinder 3 can rotate at a low speed, which fully improves the cooling time of the material in the cylinder 3 and indirectly increases the cooling quality of the material. The arrangement of the gear cover 30 can protect the large gear 27. Through the arrangement of the material collecting bin 31, the discharge pipe 32, the dust removal pipe 33, the support plate 34 and the collection box 35, the material collecting bin 31 can guide the discharged materials to be discharged outward from the dust removal pipe 33, and the discharge pipe 32 arranged on the top of the material collecting bin 31 can perform dust removal to avoid the impact on the environment during discharge, and the arrangement of the collection box 35 is convenient for collecting the materials. Through the arrangement of the fixing rod 36, the first magnetic block 37 and the second magnetic block 38, the collection box 35 can be fixed under the adsorption of the first magnetic block 37 and the second magnetic block 38 to avoid the loosening and falling of the collection box 35 to affect the collection.

[0027] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0028] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0029] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A cooling device for powdery or granular hazardous waste, comprising a first support seat (1) and a second support seat (2), wherein a cylinder (3) is movably mounted between the first support seat (1) and the second support seat (2), characterized in that: The barrel (3) is provided with a cooling structure (4), the cooling structure (4) comprising a feeding device (5) fixedly mounted on one side of the first support seat (1), a cooling water trough (6) fixedly mounted between the first support seat (1) and the second support seat (2) is provided at the bottom of the barrel (3), a cooling device (7) is installed at the bottom of the cooling water trough (6), a spray device (8) is installed at the top of the barrel (3), a plurality of air collecting structures (9) are fixedly mounted on the spray device (8), a transmission mechanism (10) connected to the barrel (3) is provided on one side of the second support seat (2), a discharging mechanism (11) is provided on one side of the barrel (3), and a spiral blade (12) is fixedly mounted inside the barrel (3).

2. The cooling device for powdery and granular hazardous waste according to claim 1, characterized in that: The feeding device (5) comprises a feeding pipe (13) fixedly mounted on the first supporting seat (1), a transmission shaft (14) movably mounted inside the feeding pipe (13), a plurality of splitter plates (15) evenly and fixedly mounted on the surface of the transmission shaft (14), and a first motor (16) connected to the transmission shaft (14) fixedly mounted on the surface of the feeding pipe (13).

3. The cooling device for powdery and granular hazardous waste according to claim 1, characterized in that: The cooling device (7) comprises an air compressor (17) fixedly mounted on the first support seat (1), and a pipeline (18) connected to the air compressor (17) is fixedly mounted on the bottom of the cooling water tank (6).

4. The cooling device for powdered and granular hazardous waste according to claim 1 is characterized by: The spray device (8) comprises a fixing frame (19) fixedly mounted on the top of the first support seat (1) and the second support seat (2), a water pipe (20) fixedly mounted between the two fixing frames (19), and a spray head (21) evenly fixedly mounted on the bottom of the water pipe (20).

5. The cooling device for powdered and granular hazardous waste according to claim 4, characterized in that: The air collecting structure (9) comprises an air duct (22) fixedly mounted on the top of the water pipe (20), a fan (23) fixedly mounted on the top of the air duct (22), a first delivery pipe (24) fixedly mounted on one side of the fan (23), a second delivery pipe (25) fixedly mounted on one side of the cooling water tank (6), and a condenser (26) fixedly mounted between the first delivery pipe (24) and the second delivery pipe (25).

6. The cooling device for powdery and granular hazardous waste according to claim 1, characterized in that: The transmission mechanism (10) comprises a large gear (27) fixedly mounted on the cylinder (3); a second motor (28) is fixedly mounted on the surface of the second support seat (2); a small gear (29) meshing with the large gear (27) is fixedly mounted on the output end of the second motor (28); and a gear cover (30) sleeved on the outside of the large gear (27) is fixedly mounted on the second support seat (2).

7. The cooling device for powdery and granular hazardous waste according to claim 1, characterized in that: The material discharging mechanism (11) comprises a material collecting bin (31) movably mounted on one side of the cylinder (3), a material discharging pipe (32) being arranged at the bottom of the material collecting bin (31), and a dust removal pipe (33) being fixedly mounted at the top of the material collecting bin (31).

8. The cooling device for powdery and granular hazardous waste according to claim 7, characterized in that: A support plate (34) fixedly mounted on the second support seat (2) is provided below the collecting bin (31), and a collecting box (35) is slidably mounted on the support plate (34).

9. The cooling device for powdery and granular hazardous waste according to claim 8, characterized in that: A fixing rod (36) is fixedly mounted on the surface of the support plate (34), a first magnetic block (37) is fixedly mounted on the fixing rod (36), and a second magnetic block (38) that is attracted to the first magnetic block (37) is fixedly mounted on the surface of the collection box (35).

10. The method for using a cooling device for powdery and granular hazardous waste according to claim 1, characterized in that: The following steps are involved: Step 1: Powdered and granular waste materials are fed into the cylinder (3) from the feeding device (5), and the transmission mechanism (10) is started to drive the cylinder (3) to rotate, so that the spiral blades (12) inside the cylinder (3) push the materials; Step 2: During the rotation of the cylinder (3), the cooling water tank (6) at the bottom cools the cylinder (3), and at the same time, the spray device (8) at the top of the cylinder (3) is started, and the water supply system supplies water to the spray device (8), so that the spray device (8) sprays the surface of the cylinder (3), and together with the cooling water tank (6), assists in cooling the cylinder (3); Step 3: After the air collecting structure (9) is started, the water vapor evaporated in the cooling water tank (6) and the water vapor evaporated during the spraying of the spraying device (8) can be extracted, thereby accelerating the air flow on the surface of the cylinder (3) and accelerating the heat dissipation; Step 4: Start the cooling device (7) to deliver pressurized air into the cooling water tank (6), thereby accelerating the heat dissipation and rapid cooling in the cooling water tank (6). After the heat in the cooling water tank (6) is rapidly cooled, the cooling of the cylinder (3) is accelerated; Step 5: Under the pushing action of the spiral blades (12) on the material and the cooling action of the multiple cooling structures, the material cooled in the cylinder (3) is discharged from the discharging mechanism (11).

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