Pesticide bottle recycling and granulating equipment and method thereof

Abstract

The invention relates to the technical field of plastic processing, in particular to pesticide bottle recycling and granulating equipment and a method thereof.The pesticide bottle recycling and granulating equipment comprises a galvanized square pipe frame and an exhaust device, the exhaust device is fixed to the top of the galvanized square pipe frame and used for removing air in plastic granules, and a conveying device is arranged at the left end of the exhaust device. An exhaust pressure rod and an exhaust piston move in the thrust direction, the exhaust piston blocks an inlet, after a sliding block slides into a vertical groove from a spiral path groove, due to the fact that the vertical groove is vertically formed, the sliding block continues to move, the retention valve element cannot rotate, and in the process that the sliding block continues to slide along the vertical groove, the retention valve element cannot rotate. And the exhaust pressure rod continues to drive the exhaust piston to move downwards to compress the hot-melt plastic staying in the compression cavity, so that bubbles in the plastic are broken under the mutual extrusion action of hot-melt plastic molecules.

Description

Technical Field

[0001] This invention relates to the field of plastic processing technology, specifically to a pesticide bottle recycling and granulation equipment and method. Background Technology

[0002] The plastic base material (PE / PP) of pesticide bottles has stable properties and can be recycled and granulated to make recycled plastic granules, which can replace some of the new materials for the production of non-food contact products (such as pipes, agricultural tool accessories, plastic baskets, mulch films, etc.), reducing dependence on petroleum-based new plastics and saving non-renewable resources. Existing pesticide bottle recycling and granulation equipment cannot avoid the formation of air bubbles inside the molten plastic strip during extrusion. These air bubbles cause the strip to become hollow, significantly reducing its toughness. During plastic extrusion, strip granulation, and other production processes, when the equipment's traction mechanism continuously pulls and conveys the high-temperature, hollow plastic strip, the strip frequently breaks irregularly. After a break, the traction process is forced to stop, requiring manual intervention from operators: shutting off the power to the traction section, reconnecting the broken ends of the strip and embedding them into the traction rollers and clamps, adjusting the strip tension, and restarting the traction equipment before production can resume, severely disrupting production efficiency. To address these issues, we propose a pesticide bottle recycling and granulation equipment and method. Summary of the Invention

[0003] This invention provides the following technical solution: a pesticide bottle recycling and granulation device, comprising: Galvanized square tube frame; An exhaust device is fixed to the top of a galvanized square tube frame to remove air from inside the plastic granules. A conveying device is located at the left end of the exhaust device to transport pesticide bottle recycled raw materials into the exhaust device. A power component is located around the conveying device to heat and melt the pesticide bottle recycled raw materials inside the conveying device. A cooling device is located at the end of the exhaust device away from the power component to cool the molten billet output by the exhaust device. A granulation cutting device is located at the end of the cooling device away from the exhaust device.

[0004] As a preferred embodiment of the present invention, the exhaust device includes a sealing plate fixedly installed at the end of the conveying device. The sealing plate has a plurality of flow holes distributed at equal angles on one side near the conveying device, and a plurality of exhaust valves distributed at equal angles are fixedly installed on the side of the sealing plate away from the conveying device. The positions of the exhaust valves correspond one-to-one with the positions of the flow holes. Each exhaust valve includes an inlet connected to the flow hole, a compression chamber connected to the inlet, and an outlet connected to the compression chamber.

[0005] As a preferred embodiment of the present invention, an exhaust pressure rod is slidably provided on the top of the exhaust valve, and the exhaust pressure rod extends into the compression chamber. An exhaust piston is fixedly provided on the outer wall of the exhaust pressure rod. The specifications of the exhaust piston match the specifications of the inner wall of the compression chamber. In the initial state, a space for hot melt plastic to flow is formed between the bottom of the exhaust piston and the inlet. A retention valve core is rotatably provided at one end of the compression chamber near the outlet. A U-shaped guide groove is opened on the side of the retention valve core near the outlet. A spiral path groove and a vertical groove are opened on the inner wall of the retention valve core. The bottom of the spiral path groove is connected to the top of the vertical groove and their widths match. A slider is integrally formed on the outer wall of the exhaust pressure rod. The slider is slidably located inside the spiral path groove and the vertical groove.

[0006] As a preferred embodiment of the present invention, a spring is sleeved around the exhaust pressure rod, and the spring is fixed between the top of the retention valve core and the bottom of the exhaust piston. A wheel frame is fixed at the end of the exhaust pressure rod away from the retention valve core. A guide wheel is rotatably provided inside the wheel frame. A protrusion is rotatably provided around the sealing plate through a bearing. A turntable is fixed on the side of the protrusion near the guide wheel. The inner wall of the turntable contacts the outer wall of the guide wheel. The inner wall of the turntable is integrally formed with multiple protrusions. The number of protrusions is the same as the number of guide wheels. Initially, the protrusions are located between two adjacent guide wheels.

[0007] As a preferred embodiment of the present invention, the conveying device includes a conveying cylinder fixedly mounted on the top of a galvanized square tube frame. The conveying cylinder penetrates the interior of the power component, and the outer wall of the conveying cylinder is in contact with the heating end of the heating device inside the power component. The end of the conveying cylinder is connected to the side of the sealing plate by bolts. A feed inlet for feeding is opened at the top of the conveying cylinder away from the sealing plate, and a hopper for collecting materials is fixedly installed at the top of the feed inlet. A spiral conveying auger is rotatably mounted inside the conveying cylinder along the axial direction of the conveying cylinder. The spiral conveying auger rotates to convey the pesticide bottle recovery raw materials inside the conveying cylinder towards the sealing plate.

[0008] As a preferred embodiment of the present invention, the cooling device includes a cooling tank fixedly mounted on the top of a galvanized square tube frame. The cooling tank is filled with cooling water. Multiple cooling pipes are fixedly installed inside the cooling pipe, which are distributed at equal angles and pass through both ends of the cooling tank. The end of the cooling pipe near the exhaust device is fixedly connected to the outlet end at the corresponding position. The cooling tank includes an inlet located at the top of the cooling tank away from the exhaust device and an outlet located at the bottom of the cooling tank near the exhaust device. The inlet and outlet form a flow of cooling water inside the cooling tank.

[0009] As a preferred embodiment of the present invention, the slitting device includes a splash-proof housing fixedly disposed at the end of the cooling pipe, and a motor fixedly installed on the side of the splash-proof housing away from the cooling pipe. The output shaft of the motor extends movably into the interior of the splash-proof housing. A blade is fixedly installed on the output shaft of the motor. The blade is located at the end of a plurality of cooling pipes, and a 2mm gap is provided between the blade and the cooling pipe. The bottom of the splash-proof housing is integrally formed with a groove.

[0010] As a preferred embodiment of the present invention, the galvanized square tube frame is provided with a power component inside, the output end of the power component is driven by the screw conveyor shaft through a belt, and the output shaft of the power component is driven by the turntable through a belt.

[0011] As a preferred embodiment of the present invention, a guide block is fixedly installed on one side of the sealing plate near the spiral conveyor, and the edge of the guide block increases linearly along the center of the sealing plate towards the sealing plate.

[0012] A granulation method for a pesticide bottle recycling granulation device includes the following steps: S1. The conveying device transports the pesticide bottle recycling raw materials to the exhaust device, and the power unit heats and melts the pesticide bottle recycling raw materials being transported inside the conveying device into a fluid hot melt plastic. S2. The hot melt plastic is conveyed by the conveying device and enters the compression chamber through the sealing plate and the inlet. The turntable drives the protrusion to rotate, pushing the exhaust pressure rod into the compression chamber. The spring is compressed, and the exhaust piston blocks between the inlet and the compression chamber. The slider moves with the exhaust pressure rod and slides into the vertical groove along the spiral path groove. The retention valve core drives the U-shaped guide groove to twist, blocking the outlet. The exhaust pressure rod continues to move, and the exhaust piston compresses the hot melt plastic inside the compression chamber, breaking the air bubbles inside the hot melt plastic. S3. The turntable continues to rotate with the convex block. The spring rebound force is released, pushing the exhaust pressure rod and exhaust piston to reset. The slider slides from the inside of the vertical groove to the inside of the spiral path groove. The retention valve core drives the U-shaped guide groove to rotate. The outlet is opened. The hot melt plastic enters the cooling pipe under the conveying device and is cooled by the cooling water in the cooling tank to form a hard plastic strip, which is finally discharged from the end of the cooling pipe. S4. The motor output shaft drives the blade to rotate, which cuts and granulates the plastic discharged from the end of the cooling pipe.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses a turntable to drive the convex to rotate. When the convex contacts the guide wheel, it generates a thrust along the axial direction of the exhaust valve on the exhaust pressure rod. This thrust ultimately acts on the exhaust pressure rod and the exhaust piston, causing them to move along the direction of the thrust. The exhaust piston blocks the inlet. When the slider slides from the spiral path groove into the vertical groove, the vertical groove is vertically open, so the continued movement of the slider will not cause the valve core to rotate. As the slider continues to slide along the vertical groove, the exhaust pressure rod continues to drive the exhaust piston to move downward, compressing the hot melt plastic remaining in the compression chamber. This causes the air bubbles inside the plastic to burst under the mutual squeezing action between the hot melt plastic molecules.

[0014] 2. In this invention, the end of the cooling pipe near the exhaust device is fixedly connected to the outlet end at the corresponding position, so that the hot melt plastic conveyed from the outlet enters the interior of the cooling pipe, is cooled and restored to hard plastic by the cooling water filled inside the cooling tank, and the cooled plastic moves along the inner wall of the cooling pipe under the extrusion and pushing of the plastic subsequently conveyed by the conveying device, and is finally output from the end of the cooling pipe. The motor output shaft drives the blade to rotate, cutting the output molten material into small particles, thereby realizing automatic granulation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a side sectional view of the present invention; Figure 4 This is a schematic diagram showing the detailed structure of the flow hole in this invention; Figure 5 This is a schematic diagram of the planar structure of the exhaust device in this invention; Figure 6 This is a partial structural diagram of the exhaust device in this invention; Figure 7 This is a side sectional view of the exhaust valve in this invention; Figure 8 This is a side section and schematic diagram of the slider structure of the retention valve core in this invention; Figure 9 In this invention Figure 3 A magnified structural diagram of part A.

[0016] In the diagram: 100, galvanized square tube frame; 200, exhaust device; 201, sealing plate; 202, flow orifice; 203, exhaust valve; 204, inlet; 205, compression chamber; 206, outlet; 207, exhaust pressure rod; 208, exhaust piston; 209, retention valve core; 2010, U-shaped guide groove; 2011, spiral path groove; 2012, vertical groove; 2013, slider; 2014, spring; 2015, wheel frame; 2016, guide wheel; 2017, turntable. ; 2018, bump; 2019, turntable; 300, conveying device; 301, conveying cylinder; 302, feed inlet; 303, screw conveyor; 304, hopper; 400, cooling device; 401, cooling tank; 402, cooling pipe; 403, water inlet; 404, water outlet; 500, slitting device; 501, splash guard; 502, motor; 503, blade; 504, trough; 600, heater; 700, guide block; 800, power component. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-9 The technical solution provided by the present invention specifically includes the following embodiments: A pesticide bottle recycling granulation device includes a galvanized square tube frame 100 and an exhaust device 200. The exhaust device 200 is fixed to the top of the galvanized square tube frame 100 and is used to remove air from the inside of the plastic granules. A conveying device 300 is provided at the left end of the exhaust device 200. The conveying device 300 is used to convey the pesticide bottle recycling raw materials into the exhaust device 200. A heater 600 is provided around the conveying device 300. The heater 600 is used to heat and melt the pesticide bottle recycling raw materials inside the conveying device 300. A cooling device 400 is provided at the end of the exhaust device 200 away from the heater 600. The cooling device 400 is used to cool the molten material output from the exhaust device 200. A granulation cutting device 500 is provided at the end of the cooling device 400 away from the exhaust device 200.

[0019] For further details, please refer to [link / reference]. Figures 4-7 As shown: The exhaust device 200 includes a sealing plate 201 fixedly installed at the end of the conveying device 300. The sealing plate 201 has multiple flow holes 202 distributed at equal angles on one side near the conveying device 300. The sealing plate 201 has multiple exhaust valves 203 distributed at equal angles fixedly installed on the side away from the conveying device 300. The positions of the exhaust valves 203 correspond one-to-one with the positions of the flow holes 202. The exhaust valves 203 include an inlet 204 connected to the flow holes 202, a compression chamber 205 connected to the inlet 204, and an outlet 206 connected to the compression chamber 205. The hot melt plastic conveyed by the conveying device 300 can enter the inlet 204 through the flow holes 202, and under the continuous conveying of the conveying device 300, it is discharged from the inlet 204 into the compression chamber 205, and finally transported from the outlet 206 to the cooling device 400 for cooling.

[0020] For further details, please refer to [link / reference]. Figure 7 , Figure 8 As shown: An exhaust valve 203 has an exhaust rod 207 slidably mounted on its top, extending into the compression chamber 205. An exhaust piston 208 is fixedly mounted on the outer wall of the exhaust rod 207, with the specifications of the exhaust piston 208 matching those of the inner wall of the compression chamber 205. In the initial state, a space for the flow of hot-melt plastic is formed between the bottom of the exhaust piston 208 and the inlet 204. This space allows the hot-melt plastic in the inlet 204 to be normally discharged into the compression chamber 205. The end of the compression chamber 205 near the outlet 206 rotates. A retention valve core 209 is provided, and a U-shaped guide groove 2010 is opened on the side of the retention valve core 209 near the outlet 206. The opening of the U-shaped guide groove 2010 allows the hot melt plastic inside the compression chamber 205 to be transported to the outlet 206 through the U-shaped guide groove 2010. A spiral path groove 2011 and a vertical groove 2012 are opened on the inner wall of the retention valve core 209. The bottom of the spiral path groove 2011 is connected to the top of the vertical groove 2012, and their widths match, so that the spiral path groove 2011 and the vertical groove 2012 are connected. The connection of 12 has a smooth transition. The outer wall of the exhaust pressure rod 207 is integrally formed with a slider 2013. The slider 2013 slides inside the spiral path groove 2011 and the vertical groove 2012. The exhaust pressure rod 207 drives the exhaust piston 208 to move, first blocking the inlet 204. At the same time, the exhaust pressure rod 207 also drives the slider 2013 to move together. Initially, the slider 2013 slides along the spiral path groove 2011, which causes the retention valve core 209 to drive the U-shaped guide groove 2010 to rotate. The outlet 206 is blocked. When the slider 2013 slides from the spiral path groove 2011 into the vertical groove 2012, the vertical groove 2012 is vertically opened, so the slider 2013 will not cause the retaining valve core 209 to rotate as it continues to move. As the slider 2013 continues to slide along the vertical groove 2012, the exhaust pressure rod 207 continues to drive the exhaust piston 208 to move down, compressing the hot melt plastic inside the retaining compression chamber 205, so that the bubbles inside the plastic are squeezed out by the mutual squeezing action between the hot melt plastic molecules.

[0021] It should be further noted that a spring 2014 is sleeved around the exhaust pressure rod 207. The spring 2014 is fixed between the top of the retention valve core 209 and the bottom of the exhaust piston 208. In its initial state, the spring 2014 provides elastic support to the exhaust piston 208, preventing the exhaust piston 208 and the exhaust pressure rod 207 from moving towards the retention valve core 209. A wheel frame 2015 is fixedly installed at the end of the exhaust pressure rod 207 away from the retention valve core 209. A guide wheel 2016 is rotatably installed inside the wheel frame 2015. A turntable 2019 is rotatably installed around the sealing plate 201 via bearings. A turntable 2017 is fixedly installed on the side of the turntable 2019 near the guide wheel 2016. The inner wall of the turntable 2017 contacts the outer wall of the guide wheel 2016. The inner wall of the turntable 2017 is integrally formed with multiple protrusions 2018. The number of protrusions 2018 is the same as the number of guide wheels 2016, and initially, the protrusions 2018 are located adjacent to each other. Between the two guide wheels 2016, the turntable 2017 drives the protrusion 2018 to rotate. When the protrusion 2018 contacts the guide wheel 2016, it generates a thrust on the exhaust rod 207 along the axial direction of the exhaust valve 203. This thrust ultimately acts on the exhaust rod 207 and the exhaust piston 208, causing them to move in the direction of the thrust. The exhaust piston 208 blocks the inlet 204, and at the same time, the spring 2014 is compressed and stores energy. Thus, when the protrusion 2018 rotates away from the guide wheel 2016, the spring 2014's rebound force causes the exhaust rod 207 and the exhaust piston 208 to reset. During the reset process, the exhaust piston 208 drives the slider 2013 to slide from the inside of the vertical groove 2012 into the inside of the spiral path groove 2011. The retention valve core 209 drives the U-shaped guide groove 2010 to reverse, causing the outlet 206 to reopen. The hot melt plastic compressed inside the compression chamber 205 is then transported to the cooling device 400 for cooling through the outlet 206.

[0022] For further details, please refer to [link / reference]. Figures 2-4 As shown: The conveying device 300 includes a conveying cylinder 301 fixedly mounted on the top of the galvanized square tube frame 100. The conveying cylinder 301 penetrates the interior of the heater 600, and its outer wall is in contact with the heating end of the heating device inside the heater 600. This allows the conveying cylinder 301 to receive heat generated by the heater 600 and transfer it to the pesticide bottle granulation raw material being conveyed inside it, causing the raw material to absorb heat and melt into a hot-melt plastic colloid. The end of the conveying cylinder 301 is connected to the side of the sealing plate 201 by bolts, and the top of the conveying cylinder 301 is away from the sealing plate 201. The end is provided with a feed port 302 for feeding, and a hopper 304 for collecting materials is fixedly installed on the top of the feed port 302. The hopper 304 can store more pesticide granulation raw materials at one time. The pesticide bottle granulation raw materials stored in the hopper 304 enter the conveying cylinder 301 through the feed port 302 opened on the top of the conveying cylinder 301 and are heated and melted. Inside the conveying cylinder 301, a spiral conveying auger 303 is provided to rotate along the axial direction of the conveying cylinder 301. The spiral conveying auger 303 rotates to transport the pesticide bottle recovery raw materials inside the conveying cylinder 301 toward the sealing plate 201.

[0023] For further details, please refer to [link / reference]. Figure 3 As shown: The cooling device 400 includes a cooling tank 401 fixedly mounted on the top of a galvanized square tube frame 100. The cooling tank 401 is filled with cooling water. Multiple cooling pipes 402, evenly distributed, are fixedly installed inside the cooling tank 401, passing through both ends of the cooling tank 401. The end of each cooling pipe 402 near the exhaust device 200 is fixedly connected to the end of an outlet 206 at a corresponding position, so that hot-melt plastic delivered from the outlet 206 enters the cooling pipe 402 and is cooled and refracted by the cooling water inside the cooling tank 401, reforming into a hard plastic strip. The cooling tank 401 includes... The cooling tank 401 has an inlet 403 at the top, away from the exhaust device 200, and an outlet 404 at the bottom, near the exhaust device 200. The inlet 403 and outlet 404 form a flow of cooling water into the cooling tank 401. During cooling, a circulating cooling pump continuously pumps cooling water into the cooling tank 401 through the inlet 403, while simultaneously drawing out the cooling water from the cooling tank 401 through the outlet 404, forming a cooling cycle. This ensures that the cooling water inside the cooling tank 401 is always at a suitable temperature, providing a good cooling effect.

[0024] For further details, please refer to [link / reference]. Figure 9 As shown: The slitting device 500 includes a splash guard 501 fixedly disposed at the end of the cooling pipe 402, and a motor 502 fixedly installed on the side of the splash guard 501 away from the cooling pipe 402. The output shaft of the motor 502 extends movably into the interior of the splash guard 501. A blade 503 is fixedly mounted on the output shaft of the motor 502. The blade 503 is located at the ends of multiple cooling pipes 402, and a 2mm gap is provided between the blade 503 and the ends of the cooling pipes 402 to ensure that the blade 503 will not rub against the ends of the cooling pipes 402 during rotation. The bottom of the splash guard 501 is integrally formed with a groove 504. The cooled plastic moves along the inner wall of the cooling pipe 402 under the squeezing and pushing of the plastic subsequently conveyed by the conveying device 300, and is finally output from the end of the cooling pipe 402. The output shaft of the motor 502 drives the blade 503 to rotate, cutting the output plastic into small particles.

[0025] For further details, please refer to [link / reference]. Figure 3 As shown: The galvanized square tube frame 100 is equipped with a power component 800. The output end of the power component 800 is driven by the shaft of the screw conveyor 303 via a belt drive, and the output shaft of the power component 800 is also driven by the turntable 2019 via a belt drive. The power component 800 provides torque, which drives the screw conveyor 303 to rotate under the drive of the belt drive to realize the conveying of raw materials, and also drives the turntable 2019 to rotate. The rotating turntable 2019 drives the turntable 2017 and the protrusion 2018 to rotate together, realizing the overall operation of the exhaust device 200. The belt drive used here includes belts and pulleys used together, but is not limited to belt drive. Chains and sprockets or gears can also be used as transmission components.

[0026] For further details, please refer to [link / reference]. Figure 4 As shown: A guide block 700 is fixedly installed on one side of the sealing plate 201 near the screw conveyor 303. The edge of the guide block 700 increases linearly along the center of the sealing plate 201 towards the sealing plate 201, so that the hot melt plastic conveyed by the screw conveyor 303 will not accumulate in the middle area of ​​the sealing plate 201 under the guidance of the guide block 700.

[0027] A granulation method for a pesticide bottle recycling granulation device includes the following steps: S1. The conveying device 300 conveys the pesticide bottle recycling raw material to the exhaust device 200, and the power unit 800 heats and melts the pesticide bottle recycling raw material being conveyed inside the conveying device 300 into a fluid hot melt plastic. S2. Hot melt plastic is conveyed by conveying device 300 and enters the compression chamber 205 through sealing plate 201 and inlet 204. Turntable 2017 drives protrusion 2018 to rotate, pushing exhaust rod 207 into the compression chamber 205. Spring 2014 is compressed. Exhaust piston 208 blocks between inlet 204 and compression chamber 205. Slider 2013 moves with exhaust rod 207 and slides into vertical groove 2012 along spiral path groove 2011. Retention valve core 209 drives U-shaped guide groove 2010 to rotate, blocking outlet 206. Exhaust rod 207 continues to move, and exhaust piston 208 compresses the hot melt plastic in compression chamber 205, breaking the air bubbles inside the hot melt plastic. S3, turntable 2017 continues to rotate carrying protrusion 2018, spring 2014 releases its rebound force to push exhaust pressure rod 207 and exhaust piston 208 to reset, slider 2013 slides from inside vertical groove 2012 to inside spiral path groove 2011, retention valve core 209 drives U-shaped guide groove 2010 to rotate, outlet 206 opens, hot melt plastic enters cooling pipe 402 under the conveying device 300 and is cooled by cooling water inside cooling tank 401 to form hard plastic strip, which is finally discharged from the end of cooling pipe 402; S4. The output shaft of motor 502 drives the blade 503 to rotate, which cuts and granulates the plastic discharged from the end of cooling pipe 402.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A pesticide bottle recycling and granulation device, characterized in that: include: Galvanized square tube frame (100); An exhaust device (200) is fixed to the top of a galvanized square tube frame (100) to remove air from the inside of the plastic granules. A conveying device (300) is provided at the left end of the exhaust device (200) to convey pesticide bottle recycled raw materials into the exhaust device (200). A heater (600) is provided around the conveying device (300) to heat and melt the pesticide bottle recycled raw materials inside the conveying device (300). A cooling device (400) is provided at the end of the exhaust device (200) away from the heater (600) to cool the molten billet output by the exhaust device (200). A granulation cutting device (500) is provided at the end of the cooling device (400) away from the exhaust device (200).

2. The pesticide bottle recycling and granulation equipment according to claim 1, characterized in that: The exhaust device (200) includes a sealing plate (201) fixedly installed at the end of the conveying device (300). The sealing plate (201) has a plurality of flow holes (202) distributed at equal angles on one side near the conveying device (300). The sealing plate (201) has a plurality of exhaust valves (203) distributed at equal angles fixedly installed on one side away from the conveying device (300). The position of the exhaust valve (203) corresponds one-to-one with the position of the flow hole (202). The exhaust valve (203) includes an inlet (204) connected to the flow hole (202), a compression chamber (205) connected to the inlet (204), and an outlet (206) connected to the compression chamber (205).

3. The pesticide bottle recycling and granulation equipment according to claim 2, characterized in that: The exhaust valve (203) has an exhaust rod (207) slidably mounted on its top, and the exhaust rod (207) extends into the compression chamber (205). An exhaust piston (208) is fixedly mounted on the outer wall of the exhaust rod (207). The specifications of the exhaust piston (208) match the specifications of the inner wall of the compression chamber (205). In the initial state, a space for hot melt plastic flow is formed between the bottom of the exhaust piston (208) and the inlet (204). A retention valve core (209) is rotatably mounted at one end of the compression chamber (205) near the outlet (206). A U-shaped drainage groove (2010) is provided on the side of the retention valve core (209) near the outlet (206). A spiral path groove (2011) and a vertical groove (2012) are provided on the inner wall of the retention valve core (209). The bottom of the spiral path groove (2011) is connected to the top of the vertical groove (2012) and their widths match. A slider (2013) is integrally formed on the outer wall of the exhaust pressure rod (207). The slider (2013) slides inside the spiral path groove (2011) and the vertical groove (2012).

4. The pesticide bottle recycling and granulation equipment according to claim 3, characterized in that: A spring (2014) is sleeved around the exhaust pressure rod (207). The spring (2014) is fixed between the top of the retention valve core (209) and the bottom of the exhaust piston (208). A wheel frame (2015) is fixed at the end of the exhaust pressure rod (207) away from the retention valve core (209). A guide wheel (2016) is rotatably mounted inside the wheel frame (2015). A turntable (2019) is rotatably mounted around the sealing plate (201) via bearings. The turntable (2019) has a turntable (2017) fixedly installed on the side near the guide wheel (2016). The inner wall of the turntable (2017) is in contact with the outer wall of the guide wheel (2016). The inner wall of the turntable (2017) is integrally formed with a plurality of protrusions (2018). The number of protrusions (2018) is the same as the number of guide wheels (2016). Initially, the protrusions (2018) are located between two adjacent guide wheels (2016).

5. The pesticide bottle recycling and granulation equipment according to claim 4, characterized in that: The conveying device (300) includes a conveying cylinder (301) fixedly mounted on the top of the galvanized square tube frame (100). The conveying cylinder (301) penetrates the interior of the power unit (800), and the outer wall of the conveying cylinder (301) is in contact with the heating end of the heating device inside the power unit (800). The end of the conveying cylinder (301) is connected to the side of the sealing plate (201) by bolts. A feed inlet (302) for feeding is provided at the top of the conveying cylinder (301) away from the sealing plate (201), and a hopper (304) for collecting materials is fixedly installed on the top of the feed inlet (302). A spiral conveying auger (303) is provided inside the conveying cylinder (301) and rotates along the axial direction of the conveying cylinder (301). The spiral conveying auger (303) rotates to convey the pesticide bottle recycling raw materials inside the conveying cylinder (301) towards the sealing plate (201).

6. The pesticide bottle recycling and granulation equipment according to claim 5, characterized in that: The cooling device (400) includes a cooling tank (401) fixedly mounted on the top of a galvanized square tube frame (100). The cooling tank (401) is filled with cooling water. Multiple cooling pipes (402) are fixedly installed inside the cooling tank (401) at equal angles. The cooling pipes (402) pass through both ends of the cooling tank (401). The end of the cooling pipe (402) near the exhaust device (200) is fixedly connected to the end of the outlet (206) at the corresponding position. The cooling tank (401) includes an inlet (403) located at the top of the cooling tank (401) away from the exhaust device (200) and an outlet (404) located at the bottom of the cooling tank (401) near the exhaust device (200). The inlet (403) and the outlet (404) form a flow of cooling water inside the cooling tank (401).

7. The pesticide bottle recycling and granulation equipment according to claim 6, characterized in that: The slitting device (500) includes a splash-proof housing (501) fixedly disposed at the end of the cooling pipe (402), and a motor (502) fixedly installed on the side of the splash-proof housing (501) away from the cooling pipe (402). The output shaft of the motor (502) extends movably into the interior of the splash-proof housing (501). A blade (503) is fixedly mounted on the output shaft of the motor (502). The blade (503) is located at the end of multiple cooling pipes (402), and a 2mm gap is provided between the blade (503) and the cooling pipe (402). The bottom of the splash-proof housing (501) is integrally formed with a groove (504).

8. The pesticide bottle recycling and granulation equipment according to claim 7, characterized in that: The galvanized square tube frame (100) is equipped with a power component (800). The output end of the power component (800) is driven by the shaft of the screw conveyor (303) through a belt, and the output shaft of the power component (800) is driven by the turntable (2019) through a belt.

9. The pesticide bottle recycling and granulation equipment according to claim 8, characterized in that: A guide block (700) is fixedly installed on one side of the sealing plate (201) near the spiral conveyor (303). The edge of the guide block (700) increases linearly along the center of the sealing plate (201) towards the sealing plate (201).

10. The granulation method of a pesticide bottle recycling granulation device according to claim 9, characterized in that: The following usage steps are included: S1. The conveying device (300) conveys the pesticide bottle recycling raw material to the exhaust device (200), and the heater (600) heats and melts the pesticide bottle recycling raw material being conveyed inside the conveying device (300) into a fluid hot melt plastic. S2. Hot melt plastic is conveyed by the conveying device (300) and enters the compression chamber (205) through the sealing plate (201) and the inlet (204). The turntable (2017) drives the protrusion (2018) to rotate, pushing the exhaust pressure rod (207) into the compression chamber (205). The spring (2014) is compressed, and the exhaust piston (208) blocks between the inlet (204) and the compression chamber (205). The slider (2013) moves with the exhaust pressure rod (207) and slides into the vertical groove (2012) along the spiral path groove (2011). The retention valve core (209) drives the U-shaped guide groove (2010) to twist, blocking the outlet (206). The exhaust pressure rod (207) continues to move, and the exhaust piston (208) compresses the hot melt plastic located in the compression chamber (205), breaking the air bubbles inside the hot melt plastic. S3, the turntable (2017) continues to rotate with the protrusion (2018), the spring (2014) releases its rebound force to push the exhaust pressure rod (207) and exhaust piston (208) to reset, the slider (2013) slides from the inside of the vertical groove (2012) to the inside of the spiral path groove (2011), the retention valve core (209) drives the U-shaped guide groove (2010) to rotate, the outlet (206) opens, the hot melt plastic enters the cooling pipe (402) under the conveying device (300) and is cooled by the cooling water inside the cooling tank (401) to form a hard plastic strip, which is finally discharged from the end of the cooling pipe (402); S4. The output shaft of the motor (502) drives the blade (503) to rotate, and cuts and granulates the plastic discharged from the end of the cooling pipe (402).

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