Die face cutter unit with cooling water circulation

Abstract

This utility model discloses a die-cutting pelletizer with cooling water circulation, including an extruder head, a cutting blade, and a cutting motor. A collecting hood is fixedly connected to the extrusion end of the extruder head, and the other end of the collecting hood is fixedly connected to the cutting motor. The output shaft of the cutting motor extends into the interior of the collecting hood. This utility model utilizes a guide cylinder, a water tank, and a water circulation mechanism. The collecting hood concentrates the cut pellets, which fall along the guide cylinder to the nozzle position in the water circulation mechanism. The water mist sprayed from the nozzle fully contacts the pellets and cools them. The water is collected in the water tank and circulated through the water circulation mechanism. During the pumping process in the water circulation mechanism, the pumped cooling water is cooled by a cooling pipe. The cooled water is then sprayed out through the nozzle, achieving the effect of cooling and recycling the cooling water. This solves the problem in the prior art where the cooling water's own temperature rises after cooling the pellets, further reducing the cooling effect.

Description

Technical Field

[0001] This utility model relates to the field of pelletizer technology, and in particular to a die-face pelletizer unit with cooling water circulation. Background Technology

[0002] Die-face pelletizers are devices that use a die to extrude materials, which are then cut into pellets by a cutting blade. They are widely used in agriculture, food, chemical and construction fields. In the chemical industry, they are mainly used for pelletizing plastics by melting the material, extruding it into strips, and then fixing it into shape through cutting and cooling.

[0003] In pelletizing units, cooling water is generally used to cool the pellets. Under normal circumstances, the pellets are in direct contact with the cooling water, and the pellets are cooled through heat conduction with the cooling water. Over time, the temperature of the cooling water will rise, which will further reduce the cooling effect. Replacing the water independently is not environmentally friendly and also affects the normal pelletizing operation of the pelletizer.

[0004] Therefore, how to provide a die-cutting pelletizer with cooling water circulation is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] One objective of this invention is to propose a die-cutting pelletizer with cooling water circulation. This invention solves the problem in the prior art where the cooling water, after cooling the pellets, causes its own temperature to rise, further reducing the cooling effect.

[0006] According to an embodiment of the present invention, a die-cutting pelletizer with cooling water circulation includes an extruder head, a cutting blade, and a cutting motor. A collecting hood is fixedly connected to the extrusion end of the extruder head, and the other end of the collecting hood is fixedly connected to the cutting motor. The output shaft of the cutting motor extends into the interior of the collecting hood. The cutting blade is movably connected to the end face of the extruder head and fixedly connected to the output shaft end of the cutting motor. A guide cylinder is fixedly connected to the bottom of the collecting hood, and a water tank is provided at the bottom of the guide cylinder. A water circulation mechanism is provided on the sides of the water tank and the guide cylinder. The water circulation mechanism includes a pumping component, a dispersing pipe, and a nozzle. The pumping component is located on the side of the guide cylinder, with one end extending into the interior of the water tank. The dispersing pipe is located on the pumping component and extends into the interior of the guide cylinder. The nozzle is located inside the guide cylinder and is fixedly connected to the end face of the dispersing pipe located inside the guide cylinder, communicating with the dispersing pipe.

[0007] The pumping assembly includes a cooling pipe and a water pump. The water pump is fixedly connected to the side of the feed cylinder. One end of the cooling pipe is fixedly connected to the inlet of the water pump, and the other end of the cooling pipe extends into the interior of the water tank.

[0008] The cooling pipe is a flat pipe with an "S" shaped design.

[0009] The dispersion tube is C-shaped, and there are two sets of nozzles. The two sets of nozzles are arranged symmetrically about the axis of symmetry of the dispersion tube.

[0010] The surface of the dispersion tube is provided with a branch guide tube, the other end of which extends into the interior of the guide cylinder. A nozzle is provided on the inner wall of the guide cylinder corresponding to the position of the branch guide tube. A transmission component is provided on the guide cylinder corresponding to the position of the nozzle. An air-cooling component is provided on the side of the water tank corresponding to the position of the cooling pipe. The transmission component is mounted on the air-cooling component.

[0011] The aforementioned die-cutting pelletizer with cooling water circulation is characterized in that the transmission assembly includes a transmission wheel, a rotating shaft, a first pulley, a transmission belt, and a second transmission wheel. The rotating shaft is rotatably connected to the guide cylinder via bearings. One end of the rotating shaft extends into the interior of the guide cylinder, and the other end extends into the exterior of the guide cylinder. The transmission wheel is fixedly connected to the end of the rotating shaft located inside the guide cylinder. The first pulley is fixedly connected to the end of the rotating shaft located outside the guide cylinder. The two ends of the transmission belt are movably connected to the first pulley and the second pulley, respectively.

[0012] The air-cooled assembly includes a connecting shaft, fan blades, and an outer frame. The connecting shaft is rotatably connected to the side of the water tank, the fan blades are fixedly connected to the surface of the connecting shaft, and the outer frame is fixedly connected to the surface of the water tank by a bracket. The outer frame is movably covered outside the fan blades. The second pulley is fixedly sleeved on the surface of the connecting shaft, and the fan blades are located on the side of the cooling pipe away from the water tank.

[0013] The inner wall of the feed tube is equipped with a protective cover corresponding to the position of the transmission dial wheel, and the nozzle is embedded in the protective cover with its output end pointing vertically downward.

[0014] The water tank has an upward-sloping discharge channel on one side. Both the discharge channel and the interior of the water tank are equipped with discharge conveyor belts. The downward-sloping end of the discharge conveyor belt is located close to the inner wall of the water tank. The discharge conveyor belt includes a belt body, a first positioning shaft, and a second positioning shaft. The two ends of the first positioning shaft are rotatably connected to the inner wall of the water tank, and the two ends of the second positioning shaft are rotatably connected to the surface of the discharge channel. The belt body is a woven mesh belt, and the two ends of the belt body are respectively movably sleeved on the surfaces of the first positioning shaft and the second positioning shaft. The width of the discharge conveyor belt matches the width of the water tank and the discharge channel.

[0015] The surface of the conveyor belt is provided with baffles, and the top of the discharge channel is provided with a waste heat recovery drying assembly. The waste heat recovery drying assembly includes a first cover, a duct pipe, a fan, a second cover, and an air outlet. The first cover is fixedly connected to the end of the outer frame away from the cooling pipe. The duct pipe is fixedly connected to the surface of the first cover and communicates with the first cover. The fan is fixedly installed at the top of the discharge channel. The air outlet is opened at the top of the discharge channel near the fan. The second cover is fixedly connected to the top of the discharge channel at the position corresponding to the air outlet. The end of the duct pipe away from the first cover is fixedly connected to the air inlet of the fan. The output port of the fan is fixedly connected to the second cover through a connecting pipe and communicates with it. A plate is fixedly connected to the side of the water tank below the discharge conveyor belt. A collection frame is movably placed on the top of the plate at the discharge end of the discharge conveyor belt.

[0016] The beneficial effects of this utility model are:

[0017] By setting up a guide cylinder, a water tank, and a water circulation mechanism, the collection hood is used to concentrate the cut particles and prevent them from scattering. Then, the particles fall along the guide cylinder to the nozzle position in the water circulation mechanism. The water mist sprayed from the nozzle will fully contact the particles and cool them down. Then, the water is recycled back into the water tank and circulated through the water circulation mechanism. During the pumping process in the water circulation mechanism, the pumped cooling water is cooled by the cooling pipe. The cooled water is then sprayed out through the nozzle, achieving the effect of cooling and recycling the cooling water. This solves the problem in the prior art that the cooling water will increase its own temperature after cooling the particles, which will further reduce the cooling effect.

[0018] By setting up a discharge conveyor belt that blocks the inlet of the water tank, the particles fall onto the discharge conveyor belt after being cooled. The water is filtered through the belt, and the particles are then transported by the discharge conveyor belt, achieving the purpose of solid-liquid separation and automatic discharge.

[0019] By setting up a waste heat recovery drying component, the heat dissipated from the cooling pipe is recovered by the waste heat recovery drying component and then conveyed to the discharge conveyor belt. The heated air blows and dries the particles on the discharge conveyor belt, improving the drying effect of the discharged particles. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the die-cutting pelletizer unit with cooling water circulation proposed in this utility model.

[0022] Figure 2This is a three-dimensional cross-sectional view of the cutting blade position in the die pelletizing unit with cooling water circulation proposed in this utility model.

[0023] Figure 3 This is a cross-sectional three-dimensional structural diagram of the transmission component position in the die-cutting pelletizer unit with cooling water circulation proposed in this utility model.

[0024] Figure 4 This is a partial three-dimensional structural diagram of the waste heat recovery and drying component in the die-cutting pelletizer with cooling water circulation proposed in this utility model.

[0025] Figure 5 This is a three-dimensional structural diagram of the cooling pipe in the pumping component of the water circulation mechanism in the die-cutting pelletizer with cooling water circulation proposed in this utility model.

[0026] Figure 6 This is a cross-sectional three-dimensional structural diagram of the discharge channel and discharge conveyor belt positions in the die-face pelletizer unit with cooling water circulation proposed in this utility model.

[0027] The attached diagram shows: 1. Extruder head; 2. Cutting blade; 3. Cutting motor; 4. Collection hood; 5. Guide cylinder; 6. Water tank; 7. Pumping assembly; 8. Dispersion pipe; 9. Nozzle; 10. Cooling pipe; 11. Water pump; 12. Branch pipe; 13. Nozzle; 14. Transmission assembly; 15. Air-cooling assembly; 16. Transmission wheel; 17. Rotating shaft; 18. First pulley; 19. Transmission belt; 20. Second transmission wheel; 21. Connecting shaft; 22. Fan blade; 23. Outer frame; 24. Protective cover; 25. Discharge channel; 26. Discharge conveyor belt; 27. Baffle; 28. Waste heat recovery drying assembly; 29. ​​First hood; 30. Air guide pipe; 31. Fan; 32. Second hood; 33. Air outlet; 34. Plate; 35. Collection frame. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0029] refer to Figure 1-6In this embodiment, the device includes an extruder head 1, a cutting blade 2, and a cutting motor 3. A collecting cover 4 is fixedly connected to the extrusion end of the extruder head 1, and the other end of the collecting cover 4 is fixedly connected to the cutting motor 3. The output shaft of the cutting motor 3 extends into the interior of the collecting cover 4. The cutting blade 2 is movably connected to the end face of the extruder head 1 and fixedly connected to the output shaft end of the cutting motor 3. A guide cylinder 5 is fixedly connected to the bottom of the collecting cover 4, and a water tank 6 is provided at the bottom of the guide cylinder 5. A water circulation mechanism is provided on the sides of the water tank 6 and the guide cylinder 5. The circulation mechanism includes a pumping component 7, a dispersing tube 8, and a nozzle 9. The pumping component 7 is located on the side of the guide cylinder 5, and one end of the pumping component 7 extends into the interior of the water tank 6. The dispersing tube 8 is located on the pumping component 7 and extends into the interior of the guide cylinder 5. The nozzle 9 is located inside the guide cylinder 5 and is fixedly connected to the end face of the dispersing tube 8 located inside the guide cylinder 5 and communicates with the dispersing tube 8. The dispersing tube 8 is C-shaped. There are two sets of nozzles 9, and the two sets of nozzles 9 are arranged symmetrically about the axis of symmetry of the dispersing tube 8.

[0030] The pumping assembly 7 includes a cooling pipe 10 and a water pump 11. The water pump 11 is fixedly connected to the side of the feed cylinder 5. One end of the cooling pipe 10 is fixedly connected to the inlet of the water pump 11, and the other end of the cooling pipe 10 extends into the interior of the water tank 6. The cooling pipe 10 is a flat pipe and has an "S" shaped design.

[0031] In practice, the collection hood 4 is fitted onto the extrusion end of the extruder head 1 to limit the cut particles and prevent them from scattering everywhere. The collection hood 4 can be fitted with a mesh cover to increase air permeability, which can be set according to actual conditions. The collection hood 4 is also equipped with an opening and closing door for observing the internal discharge status. After the cutting motor 3 starts, it drives the cutting blade 2 to cut the extruded material. The material is still warm after being cut into particles by the cutting blade 2. The cut particles fall into the guide cylinder 5 by gravity. At the same time as the cutting motor 3 starts, the water pump 11 starts. The water pump 11 pumps the cooling water stored in the water tank 6 through the cooling pipe 10 to the dispersion pipe 8, and then through the dispersion pipe 8 to the nozzle 9. Finally, the cooling water is sprayed out through the nozzle 9. The cooling water sprayed from the two sets of nozzles 9 forms a water mist cooling chamber. The nozzles 9 are adjustable, and the state of the cooling water spray can be changed according to the usage. After the particles fall into the water mist cooling chamber, they are rapidly cooled by the water mist. It should be noted that the water mist generated by the nozzles 9 not only fills the feed tube 5, but also fills the collection hood 4, thus increasing the cooling range and making the particle cooling effect better. It should also be noted that the cooling pipe 10 is a flat pipe to increase the contact area with the outside air and increase the cooling efficiency of the cooling pipe 10. The cooling pipe 10 is also a copper pipe for rapid heat transfer and dissipation. The "S" design of the cooling pipe 10 increases the path of the cooling water, so that the cooling water in the cooling pipe 10 has enough time to dissipate heat.

[0032] refer to Figure 1-6 In this embodiment, the surface of the dispersion tube 8 is provided with a branch guide tube 12, the other end of which extends into the interior of the guide tube 5. The inner wall of the guide tube 5 is provided with a nozzle 13 corresponding to the position of the branch guide tube 12. The branch guide tube 12 is used to guide a portion of the cooling water to the position of the nozzle 13. A transmission assembly 14 is provided on the guide tube 5 corresponding to the position of the nozzle 13. An air-cooling assembly 15 is provided on the side of the water tank 6 corresponding to the position of the cooling tube 10. The transmission assembly 14 is provided on the air-cooling assembly 15 in order to further improve the heat dissipation efficiency of the cooling tube 10.

[0033] The transmission assembly 14 includes a transmission dial 16, a rotating shaft 17, a first pulley 18, a transmission belt 19, and a second transmission wheel 20. The rotating shaft 17 is rotatably connected to the guide cylinder 5 via a bearing. One end of the rotating shaft 17 extends into the interior of the guide cylinder 5, and the other end extends into the exterior of the guide cylinder 5. The transmission dial 16 is fixedly connected to the end of the rotating shaft 17 located inside the guide cylinder 5. The first pulley 18 is fixedly connected to the end of the rotating shaft 17 located outside the guide cylinder 5. The two ends of the transmission belt 19 are movably connected to the first pulley 18 and the second pulley, respectively.

[0034] The inner wall of the guide cylinder 5 is provided with a protective cover 24 corresponding to the position of the transmission wheel 16 to protect the position of the transmission wheel 16 and prevent particles from getting stuck on the transmission wheel 16. The nozzle 13 is embedded in the protective cover 24 and its output end is vertically downward.

[0035] In practice, the nozzle 13 ejects a water jet that impacts the transmission wheel 16. The transmission wheel 16 rotates under the impact, and the rotation of the transmission wheel 16 drives the first pulley 18 to rotate through the rotating shaft 17. The rotation of the first pulley 18 drives the transmission belt 19 to rotate, and the rotation of the transmission belt 19 drives the second transmission wheel 20 to rotate.

[0036] The air-cooled assembly 15 includes a connecting shaft 21, a fan blade 22, and an outer frame 23. The connecting shaft 21 is rotatably connected to the side of the water tank 6. The fan blade 22 is fixedly connected to the surface of the connecting shaft 21. The outer frame 23 is fixedly connected to the surface of the water tank 6 by a bracket, and the outer frame 23 is movably covered outside the fan blade 22. The second pulley is fixedly sleeved on the surface of the connecting shaft 21. The fan blade 22 is located on the side of the cooling pipe 10 away from the water tank 6.

[0037] In practice, the rotation of the second transmission wheel 20 drives the connecting shaft 21 to rotate, and the rotation of the connecting shaft 21 drives the fan blade 22 to rotate within the outer frame 23. The rotation of the fan blade 22 causes the surrounding air to flow rapidly, further increasing the heat dissipation efficiency of the cooling pipe 10.

[0038] refer to Figure 1-6In this embodiment, a discharge channel 25 is provided on one side of the water tank 6 at an upward inclination. Both the discharge channel 25 and the interior of the water tank 6 are provided with a discharge conveyor belt 26. The downward inclination end of the discharge conveyor belt 26 is located close to the inner wall of the water tank 6. The discharge conveyor belt 26 includes a belt body, a first positioning shaft and a second positioning shaft. The two ends of the first positioning shaft are rotatably connected to the inner wall of the water tank 6, and the two ends of the second positioning shaft are rotatably connected to the surface of the discharge channel 25. The belt body is a woven mesh belt, and the two ends of the belt body are respectively movably sleeved on the surfaces of the first positioning shaft and the second positioning shaft. The width of the discharge conveyor belt 26 matches the width of the water tank 6 and the discharge channel 25.

[0039] In specific implementation, the discharge channel 25 is a rectangular channel, and the two ends of the discharge conveyor belt 26 are attached to the inner wall of the discharge channel 25. This reduces the gap between the discharge conveyor belt 26 and the discharge channel 25, preventing particles from falling into the water tank 6 through the discharge conveyor belt 26. One end of the discharge conveyor belt 26 also extends to the inner wall of the water tank 6. In order to reduce the gap at this position, particles are prevented from falling into the water tank 6 through the gap. The cooled particles and cooling water fall onto the discharge conveyor belt 26 together. Then, the water is filtered by the discharge conveyor belt 26, and the particles remain on the surface of the belt, achieving the purpose of solid-liquid separation and automatic discharge of the cooled particles.

[0040] refer to Figure 1-6 In this embodiment, a baffle 27 is provided on the surface of the conveyor belt, and a waste heat recovery drying assembly 28 is provided on the top of the discharge channel 25. The waste heat recovery drying assembly 28 includes a first cover 29, a duct 30, a fan 31, a second cover 32, and an air outlet 33. The first cover 29 is fixedly connected to the end of the outer frame 23 away from the cooling pipe 10. The duct 30 is fixedly connected to the surface of the first cover 29 and communicates with the first cover 29. The fan 31 is fixedly installed on the top of the discharge channel 25, and the air outlet 33 is opened in the... The top of the discharge channel 25 is close to the blower 31. The second cover 32 is fixedly connected to the top of the discharge channel 25 at the position corresponding to the air outlet 33. The end of the air guide pipe 30 away from the first cover 29 is fixedly connected to the air inlet of the blower 31. The output port of the blower 31 is fixedly connected to the second cover 32 through the connecting pipe and communicates with it. The side of the water tank 6 is fixedly connected to the plate 34 below the discharge conveyor belt 26. The top of the plate 34 is movably placed at the discharge end position of the discharge conveyor belt 26.

[0041] In practice, when the fan 31 is started, it draws in the heat radiating from the cooling water source through the first cover 29. The heated air then travels through the air duct 30 to the fan 31 body. Finally, the heated air passes through the fan 31 body and the first cover 29 and is discharged through the air outlet 33. Driven by the fan 31, the heated air is quickly blown from the air outlet 33 onto the discharge conveyor belt 26. The discharge conveyor belt 26 moves the particles toward the opening of the discharge channel 25. Once the particles reach the air outlet 33, the heated air quickly blows onto the particles on the belt, removing the water droplets. The heated air also dries the particles, achieving the goal of rapidly drying the cooled particles. The dried particles are then transported to the collection frame 35 via the discharge conveyor belt 26 for collection.

[0042] The method of using this utility model is as follows:

[0043] The cutting motor 3 starts and drives the cutting blade 2 to cut the extruded material into granules. The granules then fall into the guide cylinder 5. The cooling water sprayed from the nozzle 9 cools the granules. The water-cooled granules and cooling water fall together onto the discharge conveyor belt 26. The belt separates the cooling water from the granules, and the granules can then be moved and discharged by the discharge conveyor belt 26. During the discharge process, the granules are dried by the waste heat recovery drying component 28. The dried granules fall into the external collection frame 35 through the discharge conveyor belt 26 for collection.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A die-cutting pelletizer with cooling water circulation, characterized in that, It includes an extrusion head (1), a cutting blade (2) and a cutting motor (3). The extrusion end of the extrusion head (1) is fixedly connected to a collection cover (4), and the other end of the collection cover (4) is fixedly connected to the cutting motor (3). The output shaft of the cutting motor (3) extends into the inside of the collection cover (4). The cutting blade (2) is movably connected to the end face of the extrusion head (1) and is fixedly connected to the output shaft end of the cutting motor (3). The bottom of the collection cover (4) is fixedly connected to a guide cylinder (5), a water tank (6) is provided at the bottom of the guide cylinder (5), and a water circulation mechanism is provided on the sides of the water tank (6) and the guide cylinder (5). The water circulation mechanism includes a pumping component (7), a dispersing tube (8), and a nozzle (9). The pumping component (7) is located on the side of the feed tube (5), and one end of the pumping component (7) extends into the interior of the water tank (6). The dispersing tube (8) is located on the pumping component (7) and extends into the interior of the feed tube (5). The nozzle (9) is located inside the feed tube (5) and is fixedly connected to the end face of the dispersing tube (8) located inside the feed tube (5) and communicates with the dispersing tube (8).

2. The die-cutting pelletizer with cooling water circulation according to claim 1, characterized in that, The pumping assembly (7) includes a cooling pipe (10) and a water pump (11). The water pump (11) is fixedly connected to the side of the feed cylinder (5). One end of the cooling pipe (10) is fixedly connected to the inlet of the water pump (11), and the other end of the cooling pipe (10) extends into the interior of the water tank (6).

3. The die-cutting pelletizer with cooling water circulation according to claim 2, characterized in that, The cooling pipe (10) is a flat pipe and has an "S" shaped design.

4. The die-face pelletizing unit with cooling water circulation according to claim 3, characterized in that, The dispersion tube (8) is "C" shaped, and there are two sets of nozzles (9). The two sets of nozzles (9) are arranged symmetrically with respect to the axis of symmetry of the dispersion tube (8).

5. The die-cutting pelletizer with cooling water circulation according to claim 4, characterized in that, The surface of the dispersion tube (8) is provided with a branch guide tube (12), and the other end of the branch guide tube (12) extends into the interior of the guide tube (5). The inner wall of the guide tube (5) is provided with a nozzle (13) corresponding to the position of the branch guide tube (12). A transmission assembly (14) is provided on the guide tube (5) corresponding to the position of the nozzle (13). A wind-cooling assembly (15) is provided on the side of the water tank (6) corresponding to the position of the cooling tube (10). The transmission assembly (14) is provided on the wind-cooling assembly (15).

6. The die-face pelletizing unit with cooling water circulation according to claim 5, characterized in that, The transmission assembly (14) includes a transmission wheel (16), a rotating shaft (17), a first pulley (18), a transmission belt (19), and a second transmission wheel (20). The rotating shaft (17) is rotatably connected to the guide cylinder (5) through a bearing. One end of the rotating shaft (17) extends into the interior of the guide cylinder (5), and the other end of the rotating shaft (17) extends into the exterior of the guide cylinder (5). The transmission wheel (16) is fixedly connected to one end of the rotating shaft (17) located inside the guide cylinder (5). The first pulley (18) is fixedly connected to one end of the rotating shaft (17) located outside the guide cylinder (5). The two ends of the transmission belt (19) are movably connected to the first pulley (18) and the second pulley, respectively.

7. The die-cutting pelletizer with cooling water circulation according to claim 6, characterized in that, The air-cooled assembly (15) includes a connecting shaft (21), a fan blade (22), and an outer frame (23). The connecting shaft (21) is rotatably connected to the side of the water tank (6). The fan blade (22) is fixedly connected to the surface of the connecting shaft (21). The outer frame (23) is fixedly connected to the surface of the water tank (6) by a bracket, and the outer frame (23) is movably covered outside the fan blade (22). The second pulley is fixedly sleeved on the surface of the connecting shaft (21). The fan blade (22) is located on the side of the cooling pipe (10) away from the water tank (6).

8. The die-face pelletizing unit with cooling water circulation according to claim 7, characterized in that, The inner wall of the guide cylinder (5) is provided with a protective cover (24) corresponding to the position of the transmission dial (16), and the nozzle (13) is embedded in the protective cover (24) with its output end pointing vertically downward.

9. The die-cutting pelletizer with cooling water circulation according to claim 7, characterized in that, The water tank (6) has an upwardly inclined discharge channel (25) on one side. Both the discharge channel (25) and the water tank (6) are equipped with discharge conveyor belts (26). The downwardly inclined end of the discharge conveyor belt (26) is located close to the inner wall of the water tank (6). The discharge conveyor belt (26) includes a belt body, a first positioning shaft, and a second positioning shaft. The two ends of the first positioning shaft are rotatably connected to the inner wall of the water tank (6), and the two ends of the second positioning shaft are rotatably connected to the surface of the discharge channel (25). The belt body is a woven mesh belt, and the two ends of the belt body are respectively movably sleeved on the surfaces of the first positioning shaft and the second positioning shaft. The width of the discharge conveyor belt (26) matches the width of the water tank (6) and the discharge channel (25).

10. The die-face pelletizing unit with cooling water circulation according to claim 9, characterized in that, The surface of the belt is provided with a baffle (27), and the top of the discharge channel (25) is provided with a waste heat recovery drying assembly (28). The waste heat recovery drying assembly (28) includes a first cover (29), a duct (30), a fan (31), a second cover (32), and an air outlet (33). The first cover (29) is fixedly connected to the end of the outer frame (23) away from the cooling pipe (10). The duct (30) is fixedly connected to the surface of the first cover (29) and communicates with the first cover (29). The fan (31) is fixedly installed on the top of the discharge channel (25), and the air outlet (33) is opened at the top of the discharge channel (25). The top of the material channel (25) is close to the blower (31). The second cover (32) is fixedly connected to the top of the discharge channel (25) at the position corresponding to the air outlet (33). The end of the air guide pipe (30) away from the first cover (29) is fixedly connected to the air inlet of the blower (31). The output port of the blower (31) is fixedly connected to the second cover (32) through the connecting pipe and communicates with it. The side of the water tank (6) is fixedly connected to the plate (34) below the discharge conveyor belt (26). The top of the plate (34) is movably placed at the discharge end position of the discharge conveyor belt (26).

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