Drum type granulator

Abstract

The invention belongs to the technical field of pelletizers, and particularly relates to a drum-type pelletizer which comprises a conveying mechanism, a feeding mechanism and a discharging mechanism. The cutting mechanism is arranged at one end of the conveying mechanism; the conveying mechanism comprises a conveying cylinder, a rotating shaft and an auger blade; the cutting mechanism comprises a cutting box, a roller and a cutting knife; the first motor drives the rotating shaft to rotate so as to drive the auger blade to rotate, so that plastic conveying is achieved, meanwhile, the plastic in the conveying process can be heated through the design of the heating plate, the plastic is made to be in a molten state, and under the condition that the auger blade continuously rotates, the plastic can be conveyed to a certain degree. The plastic in a molten state can be conveyed into the cutting mechanism through the discharging pipe, so that the plastic is cooled and cut, the plastic is molten firstly, a plastic molecular chain is stretched and extended, cutting and smashing are conducted after cooling, and more uniform and regular particles can be obtained; the method has more advantages in the aspect of controlling the particle size and shape.

Description

Technical Field

[0001] The present invention belongs to the technical field of granulating machines, and specifically relates to a drum granulating machine. Background Art

[0002] With the rapid development of the plastic industry, the recycling and reutilization of waste plastics have become the focus of global attention. As a key equipment in the process of waste plastic recycling, the performance and efficiency of plastic granulating machines directly affect the reutilization effect of waste plastics and the level of environmental protection.

[0003] After retrieval, a Chinese patent with the publication number CN107498739A discloses a plastic granulating machine, including a base. A cylinder is fixedly arranged on the base. A transmission screw is arranged inside the cylinder. A spiral stirring blade is arranged on the transmission screw. The transmission screw is in transmission connection with a first motor. A crushing chamber is arranged on the cylinder. The crushing chamber communicates with the cylinder. A first crushing blade group and a second crushing blade group are arranged inside the crushing chamber. The first crushing blade group includes a first rotating shaft and crushing blades arranged on the first rotating shaft. The first rotating shaft is in transmission connection with a second motor. The second crushing blade group includes a second rotating shaft and crushing blades arranged on the second rotating shaft. An automatic feeding mechanism is arranged on the side of the base. The automatic feeding mechanism includes a conveyor belt and a bracket. The bracket is fixedly arranged below the conveyor belt. One end of the conveyor belt extends to the feeding port.

[0004] In the above technology, although the design of structures such as the first crushing blade group and the second crushing blade group can cut and crush plastics, the crushing effect may be affected by factors such as the plastic material, shape, and hardness, resulting in uneven particle size and irregular shape. Moreover, directly crushing with crushing blades is likely to generate a large amount of dust, thus affecting the physical health of workers.

[0005] Therefore, the present invention provides a drum granulating machine. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A drum granulating machine according to the present invention includes: a conveying mechanism;

[0008] A cutting mechanism, arranged at one end of the conveying mechanism;

[0009] The conveying mechanism includes a conveying cylinder, a rotating shaft and a screw blade. The conveying cylinder is horizontally arranged. A rotating shaft is rotatably connected inside the conveying cylinder, and a screw blade is fixedly connected to the outer wall of the rotating shaft. One end of the top of the conveying cylinder is communicated with a feed hopper. Three heating plates are fixedly connected to the outer wall of the conveying cylinder at the end far from the feed hopper. A discharge pipe is arranged at the end of the conveying cylinder far from the feed hopper. The cutting mechanism is arranged at one end of the discharge pipe;

[0010] The cutting mechanism includes a cutting box, a roller and a cutting knife. The cutting box is fixedly connected to the discharge pipe. The output end of the discharge pipe extends into the cutting box. A roller is rotatably connected inside the cutting box. The roller is rotatably connected to the discharge pipe and communicated with the discharge pipe. Four groups of extrusion holes are arranged on the side wall of the roller. The four groups of extrusion holes are circumferentially arranged on the side wall of the roller. Five extrusion holes are in a group and are linearly arranged. One end of the inner wall of the cutting box is fixedly connected with a connecting plate, and a cutting knife is fixedly connected to the bottom of the connecting plate. The cutting knife is tangent to the side wall of the roller.

[0011] Preferably, a first motor is fixedly connected to the outer wall of the conveying cylinder at the end far from the discharge pipe. The output shaft of the first motor extends into the conveying cylinder and is fixedly connected to the rotating shaft. A support column is fixedly connected to the bottom of the conveying cylinder at the end of the feed hopper.

[0012] Preferably, a connecting shaft is fixedly connected to the end of the roller far from the discharge pipe. The connecting shaft is rotatably connected to the cutting box. A second motor is fixedly connected to one end of the outer wall of the cutting box. The output end of the second motor is fixedly connected to the connecting shaft.

[0013] Preferably, a discharge channel is communicated with one end of the cutting box. A conveyor belt is rotatably connected inside the cutting knife below the roller. One end of the conveyor belt extends outside the discharge channel and is rotatably connected to the discharge channel.

[0014] Preferably, a third motor is fixedly connected to one end of the outer wall of the cutting box. The output end of the third motor is fixedly connected to the input shaft of the conveyor belt. Flow guiding plates are respectively fixedly connected to both ends of the inner wall of the cutting box above the conveyor belt. One end of the flow guiding plate extends to the output port of the discharge channel.

[0015] Preferably, a spray pipe is arranged at the top of the inner wall of the cutting box. The spray pipe is arranged in a crank and meander shape. A plurality of spray heads are installed at the bottom of the spray pipe.

[0016] Preferably, a plurality of through holes are arranged on the surface of the conveyor belt. The bottom of the cutting box is arranged in an inverted cone shape. A conduit is communicated with the bottom of the cutting box. The bottom of the conduit is communicated with a water tank. The bottom of the discharge channel is inclined, and the end at the cutting box is lower than the other end.

[0017] Preferably, one end of the catheter can be detachably connected with a filter screen, and a dryer is installed at the top of the discharge channel.

[0018] Preferably, one end of the top of the cutting box is fixedly connected with a heat dissipation pipe. The heat dissipation pipe is arranged in a zigzag manner, and a plurality of fins are fixedly connected to the outside. The heat dissipation pipe is communicated with the spray pipe, and a blower is fixedly connected to the top of the cutting box at a position adjacent to the heat dissipation pipe.

[0019] Preferably, one end of the side wall of the water tank is fixedly connected with a water pump. The input end of the water pump is communicated with the water tank, the output end of the water pump is communicated with a connecting pipe, and the connecting pipe is communicated with the heat dissipation pipe.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. For the drum granulator of the present invention, the plastic is conveyed through the design of the conveying mechanism. Among them, the first motor drives the rotation of the rotating shaft, thereby driving the rotation of the auger blades to realize the conveying of the plastic. At the same time, through the design of the heating plate, the plastic during the conveying process can be heated to make the plastic into a molten state. In this way, under the continuous rotation of the auger blades, the molten plastic can be conveyed to the cutting mechanism through the discharge pipe, so as to cool and cut the plastic. By melting the plastic first, the plastic molecular chains are stretched and extended, and then cut and crushed after cooling, more uniform and regular particles can be obtained. This method has more advantages in controlling the particle size and shape;

[0022] 2. For the drum granulator of the present invention, the molten plastic is cooled and cut through the design of the cutting mechanism. When the molten plastic is discharged from the discharge pipe, it will enter the drum. When the plastic in the drum is in a molten state, the plastic will flow out from the extrusion holes. At this time, the water pump conveys the cooling water in the water tank to the spray pipe, so that the cooling water can be sprayed out from the nozzles, thereby realizing the cooling of the plastic to make the plastic take shape for subsequent cutting. The second motor can drive the rotation of the drum, thereby driving the rotation of the plastic at the extrusion holes. During the rotation process, the plastic will contact the cutting knife, thereby realizing the cutting of the plastic;

[0023] 3. For the drum granulator of the present invention, the cut plastic is received through the design of the conveyor belt and conveyed for discharging. By arranging a dryer on the discharge channel, the moisture attached to the plastic can be dried, which is convenient for subsequent collection. Through the design of the catheter, the cooling water sprayed out from the nozzle can flow back into the water tank, thereby realizing recycling. The filter screen can filter the cooling water flowing back. Through the design of the heat dissipation pipe, fins and blower, the cooling water flowing back can be cooled and dissipated, so as to ensure the cooling effect of the cooling water. Description of the Drawings

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 2 is Figure 1 a structural schematic diagram of another perspective;

[0027] Figure 3 is a side sectional structural schematic diagram of the conveying cylinder in the present invention;

[0028] Figure 4 is a structural schematic diagram of the cutting mechanism in the present invention;

[0029] Figure 5 is a first perspective sectional structural schematic diagram of the cutting box in the present invention;

[0030] Figure 6 is Figure 5 a structural schematic diagram of another perspective;

[0031] Figure 7 is a second perspective sectional structural schematic diagram of the cutting box in the present invention;

[0032] Figure 8 is a side sectional structural schematic diagram of the conduit in the present invention.

[0033] In the figure: 1. Conveying mechanism; 101. Conveying cylinder; 102. Rotating shaft; 103. Screw blade; 104. Feed hopper; 105. Heating plate; 106. Discharge pipe; 107. First motor; 108. Support column; 2. Cutting mechanism; 201. Cutting box; 202. Roller; 203. Extrusion hole; 204. Connecting plate; 205. Cutting knife; 206. Connecting shaft; 207. Second motor; 208. Discharge channel; 209. Conveyor belt; 210. Third motor; 211. Deflector; 212. Spray pipe; 213. Nozzle; 214. Through hole; 215. Dryer; 3. Conduit; 4. Water tank; 5. Filter screen; 6. Heat dissipation pipe; 7. Fins; 8. Water pump; 9. Connecting pipe; 10. Fan. Detailed implementation manners

[0034] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0035] As Figures 1 to 8As shown in the figure, a drum granulator according to an embodiment of the present invention includes: a conveying mechanism 1; a cutting mechanism 2 provided at one end of the conveying mechanism 1; the conveying mechanism 1 includes a conveying cylinder 101, a rotating shaft 102 and an auger blade 103. The conveying cylinder 101 is horizontally arranged. The inside of the conveying cylinder 101 is rotatably connected with the rotating shaft 102. The outer wall of the rotating shaft 102 is fixedly connected with the auger blade 103. One end of the top of the conveying cylinder 101 is communicated with a feed hopper 104. Three heating plates 105 are fixedly connected to the outer wall of the conveying cylinder 101 away from the feed hopper 104. One end of the conveying cylinder 101 away from the feed hopper 104 is provided with a discharge pipe 106. The cutting mechanism 2 is arranged at one end of the discharge pipe 106; the cutting mechanism 2 includes a cutting box 201, a drum 202 and a cutting knife 205. The cutting box 201 is fixedly connected with the discharge pipe 106. The output end of the discharge pipe 106 extends into the inside of the cutting box 201. The inside of the cutting box 201 is rotatably connected with the drum 202. The drum 202 is rotatably connected with the discharge pipe 106 and is communicated with the discharge pipe 106. Four groups of extrusion holes 203 are arranged on the side wall of the drum 202. The four groups of extrusion holes 203 are arranged in a circumferential array on the side wall of the drum 202. Five extrusion holes 203 are in a group and are arranged in a linear array. One end of the inner wall of the cutting box 201 is fixedly connected with a connecting plate 204. The bottom of the connecting plate 204 is fixedly connected with a cutting knife 205. The cutting knife 205 is tangent to the side wall of the drum 202; a first motor 107 is fixedly connected to the outer wall of the conveying cylinder 101 away from the discharge pipe 106. The output shaft of the first motor 107 extends into the inside of the conveying cylinder 101 and is fixedly connected with the rotating shaft 102. A support column 108 is fixedly connected to the bottom of the conveying cylinder 101 at the end of the feed hopper 104; a connecting shaft 206 is fixedly connected to the end of the drum 202 away from the discharge pipe 106. The connecting shaft 206 is rotatably connected with the cutting box 201. A second motor 207 is fixedly connected to one end of the outer wall of the cutting box 201. The output end of the second motor 207 is fixedly connected with the connecting shaft 206; a spray pipe 212 is arranged at the top of the inner wall of the cutting box 201. The spray pipe 212 is arranged in a crank and serpentine shape. A plurality of nozzles 213 are installed at the bottom of the spray pipe 212;

[0036] In this embodiment, first, the plastic raw material is put into the conveying cylinder 101 through the feeding hopper 104. Then, the first motor 107 is turned on. Driven by the first motor 107, the rotating shaft 102 will rotate, thereby driving the auger blade 103 to rotate to convey the plastic. During the plastic conveying process, the three heating plates 105 are turned on to heat the plastic and melt it. Under the continuous rotation of the auger blade 103, the molten plastic can be conveyed through the discharge pipe 106 into the drum 202 in the cutting mechanism 2. When the drum 202 is filled with plastic, some plastic will flow out through the extrusion holes 203 on the drum 202. At this time, the spray pipe 212 is connected to the water source, so that the cooling water can be sprayed out from the nozzle 213 to cool the plastic at the extrusion holes 203 for plastic shaping. Then, the second motor 207 is turned on. Driven by the second motor 207, the drum 202 will rotate, driving the plastic at the extrusion holes 203 to rotate together. During this process, the plastic at the extrusion holes 203 will contact the cutting knife 205 to cut off the plastic at the extrusion holes 203 to form granular plastic. By first melting the plastic, the plastic molecular chains are stretched and extended, and then cut and crushed after cooling, more uniform and regular particles can be obtained. This method has more advantages in controlling the particle size and shape. In addition, through the continuous rotation of the drum 202 and the design of the circumferentially arrayed extrusion holes 203, the plastic can continuously and evenly flow out from the extrusion holes 203 to achieve continuous production, greatly improving the production efficiency.

[0037] As Figures 5 to 7 shown, one end of the cutting box 201 is connected to a discharge channel 208. Inside the cutting knife 205 and below the drum 202, a conveyor belt 209 is rotatably connected. One end of the conveyor belt 209 extends outside the discharge channel 208 and is rotatably connected to the discharge channel 208.

[0038] In this embodiment, the design of the conveyor belt 209 can catch the plastic cut off by the cutting knife 205 and convey and discharge it.

[0039] As Figures 4 to 7 shown, one end of the outer wall of the cutting box 201 is fixedly connected to a third motor 210. The output end of the third motor 210 is fixedly connected to the input shaft of the conveyor belt 209. At both ends of the inner wall of the cutting box 201 and above the conveyor belt 209, guide plates 211 are respectively fixedly connected. One end of the guide plate 211 extends to the output port of the discharge channel 208.

[0040] In this embodiment, the design of the third motor 210 provides driving force for the rotation of the conveyor belt 209. Through the design of the guide plate 211, the plastic cut off by the cutting knife 205 can accurately fall onto the conveyor belt 209.

[0041] AsFigures 5 to 7 As shown, a plurality of through holes 214 are provided on the surface of the conveyor belt 209. The bottom of the cutting box 201 is arranged in an inverted conical shape. A conduit 3 is connected to the bottom of the cutting box 201. The bottom of the conduit 3 is connected to a water tank 4. The bottom of the discharge channel 208 is inclined, and one end located at the cutting box 201 is lower than the other end.

[0042] In this embodiment, through the design, the cooling water sprayed by the nozzle 213 can smoothly pass through the conveyor belt 209. Through the design of the conduit 3, the cooling water passing through the conveyor belt 209 can flow into the water tank 4, so as to facilitate the collection and recycling of the cooling water.

[0043] As Figures 1 to 2 shown, one end of the conduit 3 is detachably connected with a filter screen 5, and a dryer 215 is installed at the top of the discharge channel 208.

[0044] In this embodiment, the cooling water flowing into the water tank 4 is filtered through the design of the filter screen 5 to reduce the impurities in the cooling water, so as to facilitate the subsequent cooling process and ensure the quality of the plastic particles. The filter screen 5 is movably inserted into the conduit 3, and one end of the filter screen 5 extends to the outside of the conduit 3. When the staff replaces or cleans the filter screen 5, they only need to pull out the filter screen 5 from the conduit 3, which is very convenient to operate. Through the design of the dryer 215, the cut plastic is dried to facilitate subsequent collection.

[0045] As Figure 4 shown, one end of the top of the cutting box 201 is fixedly connected with a heat dissipation pipe 6. The heat dissipation pipe 6 is arranged in a zigzag shape, and a plurality of fins 7 are fixedly connected to the outside. The heat dissipation pipe 6 is communicated with the spray pipe 212. A fan 10 is fixedly connected to the top of the cutting box 201 at a position adjacent to the heat dissipation pipe 6.

[0046] In this embodiment, since the cooling water will absorb the heat on the plastic when cooling the plastic, the heat of the cooling water itself will increase at this time. In order to facilitate the cooling water to have a better cooling effect in subsequent use, the heat dissipation speed of the cooling water is accelerated through the design of the heat dissipation pipe 6, the fins 7 and the fan 10, so as to facilitate the subsequent cooling of the plastic.

[0047] As Figure 4 shown, one end of the side wall of the water tank 4 is fixedly connected with a water pump 8. The input end of the water pump 8 is communicated with the water tank 4. The output end of the water pump 8 is communicated with a connecting pipe 9, and the connecting pipe 9 is communicated with the heat dissipation pipe 6.

[0048] In this embodiment, the water pump 8 is designed as the driving force for the flow of the cooling water, so that the cooling water can smoothly circulate in the water tank 4, the heat dissipation pipe 6 and the spray pipe 212.

[0049] Working principle: First, put the plastic raw materials into the conveying cylinder 101 through the feeding hopper 104. Then, turn on the first motor 107. Driven by the first motor 107, the rotating shaft 102 will rotate, thereby driving the auger blade 103 to rotate to convey the plastic. During the plastic conveying process, turn on the three heating plates 105 to heat the plastic and melt it. Under the continuous rotation of the auger blade 103, the molten plastic can be conveyed through the discharge pipe 106 into the drum 202 in the cutting mechanism 2. When the drum 202 is filled with plastic, some plastic will flow out through the extrusion holes 203 on the drum 202. At this time, turn on the water pump 8. Under the action of the water pump 8, the cooling water in the water tank 4 can flow into the heat dissipation pipe 6 through the connecting pipe 9, flow through the heat dissipation pipe 6 into the spray pipe 212, and finally spray out from the nozzles 213 on the spray pipe 212 to cool the plastic at the extrusion holes 203 for plastic shaping. Then, turn on the second motor 207. Driven by the second motor 207, the drum 202 will rotate, thereby driving the plastic at the extrusion holes 203 to rotate together. During this process, the plastic at the extrusion holes 203 will contact the cutting knife 205 to cut off the plastic at the extrusion holes 203 to form granular plastic. The plastic cut into granular shape will fall onto the conveyor belt 209. At this time, turn on the third motor 210. Driven by the third motor 210, the conveyor belt 209 will rotate to drive the plastic particles to move. During the process of the conveyor belt 209 conveying the plastic, it will pass through the discharging opening. At this time, turn on the dryer 215. Through the action of the dryer 215, the moisture attached to the plastic particles is dried for subsequent collection. In addition, the cooling water sprayed out from the nozzles 213 will pass through the through holes 214 on the conveyor belt 209 and flow back into the water tank 4. During this process, the filter screen 5 in the conduit 3 can filter the flowing-back cooling water to reduce the impurities in the cooling water, thereby facilitating the subsequent cooling process and ensuring the quality of the plastic particles. Since the cooling water will absorb the heat on the plastic when cooling the plastic, the heat of the cooling water itself will increase. In order to facilitate the cooling water to have a better cooling effect in subsequent use, it is necessary to dissipate the heat of the cooling water. During the operation, when the cooling water flows into the heat dissipation pipe 6 under the action of the water pump 8, turn on the fan 10 at this time. The airflow generated by the fan 10 accelerates the flow rate of the air around the heat dissipation pipe 6, and the fins 7 accelerate the heat transfer by increasing the heat dissipation area and promoting convective heat transfer, so that the heat of the cooling water inside the heat dissipation pipe 6 can be dissipated into the air faster, improving the heat dissipation efficiency and ensuring the subsequent utilization of the cooling water.

[0050] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A drum granulator, comprising: Conveying mechanism (1); A cutting mechanism (2) is arranged at one end of the conveying mechanism (1); Features: The conveying mechanism (1) comprises a conveying cylinder (101), a rotating shaft (102) and an auger blade (103); the conveying cylinder (101) is arranged horizontally; the conveying cylinder (101) is rotatably connected to the rotating shaft (102); the outer wall of the rotating shaft (102) is fixedly connected to the auger blade (103); one end of the top of the conveying cylinder (101) is connected to a feed hopper (104); three heating plates (105) are fixedly connected to one end of the outer wall of the conveying cylinder (101) away from the feed hopper (104); a discharge pipe (106) is provided at one end of the conveying cylinder (101) away from the feed hopper (104); and the cutting mechanism (2) is arranged at one end of the discharge pipe (106); The cutting mechanism (2) comprises a cutting box (201), a roller (202) and a cutting knife (205); the cutting box (201) is fixedly connected to a discharge pipe (106); an output end of the discharge pipe (106) extends into the interior of the cutting box (201); a roller (202) is rotatably connected to the interior of the cutting box (201); the roller (202) is rotatably connected to the discharge pipe (106) and communicates with the discharge pipe (106); the roller The side wall (202) is provided with four groups of extrusion holes (203), the four groups of extrusion holes (203) are distributed in a circular array on the side wall of the drum (202), five of the extrusion holes (203) form a group, and are distributed in a linear array, a connecting plate (204) is fixedly connected to one end of the inner wall of the cutting box (201), a cutting knife (205) is fixedly connected to the bottom of the connecting plate (204), and the cutting knife (205) is tangent to the side wall of the drum (202).

2. A drum granulator according to claim 1, characterized in that: A first motor (107) is fixedly connected to the outer wall of one end of the conveying cylinder (101) away from the discharge pipe (106); an output shaft of the first motor (107) extends into the interior of the conveying cylinder (101) and is fixedly connected to the rotating shaft (102); and a support column (108) is fixedly connected to one end of the bottom of the conveying cylinder (101) located at the feed hopper (104).

3. A drum granulator according to claim 1, characterized in that: The roller (202) is fixedly connected to one end thereof away from the discharge pipe (106) with a connecting shaft (206), and the connecting shaft (206) is rotationally connected to the cutting box (201). A second motor (207) is fixedly connected to one end of the outer wall of the cutting box (201), and an output end of the second motor (207) is fixedly connected to the connecting shaft (206).

4. A drum granulator according to claim 3, characterized in that: One end of the cutting box (201) is connected to a discharge channel (208), and the interior of the cutting knife (205) is located below the roller (202) and is rotatably connected to a conveyor belt (209), and one end of the conveyor belt (209) extends to the outside of the discharge channel (208) and is rotatably connected to the discharge channel (208).

5. A drum granulator according to claim 4, characterized in that: A third motor (210) is fixedly connected to one end of the outer wall of the cutting box (201), and an output end of the third motor (210) is fixedly connected to an input shaft of a conveyor belt (209). Two ends of the inner wall of the cutting box (201) are located above the conveyor belt (209) and are respectively fixedly connected to guide plates (211), and one end of the guide plate (211) extends to an output port of a discharge channel (208).

6. A drum granulator according to claim 5, characterized in that: A spray pipe (212) is arranged at the top of the inner wall of the cutting box (201), the spray pipe (212) is arranged in a crankshaft-shaped winding manner, and a plurality of spray heads (213) are installed at the bottom of the spray pipe (212).

7. A drum granulator according to claim 4, characterized in that: The surface of the conveyor belt (209) is provided with a plurality of through holes (214); the bottom of the cutting box (201) is arranged in an inverted cone shape; the bottom of the cutting box (201) is connected to a conduit (3); the bottom of the conduit (3) is connected to a water tank (4); the bottom of the discharge channel (208) is arranged at an angle and is located at one end of the cutting box (201) lower than the other end.

8. A drum granulator according to claim 7, characterized in that: One end of the conduit (3) is detachably connected to a filter screen (5), and a dryer (215) is installed on the top of the discharge channel (208).

9. A drum granulator according to claim 7, characterized in that: A heat dissipation pipe (6) is fixedly connected to one end of the top of the cutting box (201); the heat dissipation pipe (6) is arranged in a zigzag manner and has a plurality of fins (7) fixedly connected to the outside; the heat dissipation pipe (6) is connected to a spray pipe (212); and a fan (10) is fixedly connected to the top of the cutting box (201) at a position adjacent to the heat dissipation pipe (6).

10. A drum granulator according to claim 7, characterized in that: A water pump (8) is fixedly connected to one end of the side wall of the water tank (4); the input end of the water pump (8) is in communication with the water tank (4); the output end of the water pump (8) is in communication with a connecting pipe (9); and the connecting pipe (9) is in communication with the heat dissipation pipe (6).

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