PVC film waste crushing and recycling equipment

Abstract

The present application relates to PVC film technical field, especially to a kind of PVC film waste crushing recycling equipment, including workbench, support, processing cavity, inlet hopper, grinding cylinder and discharge pipe;Workbench is equipped with support;Support is equipped with processing cavity;Flange is connected and communicated with inlet hopper on processing cavity;Inlet hopper is fixedly connected and communicated with grinding cylinder;Grinding cylinder is communicated with discharge pipe.The present application uses the two-stage crushing structure of "the pre-shearing shredding of breaking mechanism plus 8-high-speed turbine cutterhead low-temperature grinding", and is matched with axial air guide air cooling, can stably control the working temperature in 5-grinding cylinder below fifty degrees, far below the vicat softening point of PVC material, avoid the problem that PVC heat-sensitive material is heated and softened, adheres, denatures and turns yellow.

Description

Technical Field

[0001] This invention relates to the field of PVC film technology, and in particular to a PVC film waste crushing and recycling equipment. Background Technology

[0002] PVC film, with its core characteristics of acid and alkali corrosion resistance, low overall production cost, and easy thermoforming, is widely used in dozens of civilian and industrial fields, such as agricultural greenhouse covering, industrial waterproof membrane processing, outdoor advertising inkjet printing, artificial leather synthesis production, and packaging stretch film manufacturing. The annual production capacity of flexible PVC film in China alone exceeds 3 million tons. In the entire life cycle of production, cutting, end use, and waste recycling, 15%-20% of the total output will be scrap and waste film material. If this waste is landfilled indiscriminately, it will not only be difficult to degrade naturally, but will also release harmful substances such as plasticizers, polluting the soil and groundwater. Direct incineration will release chlorine-containing harmful gases, causing air pollution. Therefore, efficient crushing and recycling is the core pre-process for realizing the recycling of PVC film.

[0003] Existing conventional PVC film crushing equipment suffers from the following problems in actual industrial continuous production: First, PVC is a typical heat-sensitive polymer material with a Vicat softening point of only 60-70℃. During conventional high-speed crushing, the blades and materials continuously rub against each other, causing the materials to soften and stick together. This easily adheres to the inside of the crushing equipment, leading to material performance degradation and yellowing. It is impossible to produce qualified recycled materials with uniform particle size, resulting in significant fluctuations in tensile strength and impact resistance when used for granulation and pipe production. Second, existing equipment lacks a synchronous dust removal and cooling structure. During the crushing process, fine PVC powder and fiber debris are severely dispersed, polluting the workshop environment. At the same time, the blades wear out quickly under long-term high-temperature and high-load conditions, resulting in short maintenance cycles, high replacement frequency of parts, and high overall operating costs. Summary of the Invention

[0004] To overcome the shortcomings of the problems mentioned in the background, the present invention provides a PVC film waste crushing and recycling device.

[0005] The technical solution is as follows: A PVC film waste crushing and recycling equipment includes a workbench, a support, a processing chamber, a feed hopper, a grinding cylinder, and a discharge pipe; the workbench is equipped with a support; the support is equipped with a processing chamber; a flange connects to and communicates with the feed hopper on the processing chamber; the feed hopper is fixedly connected to and communicates with the grinding cylinder; the grinding cylinder is communicated with the discharge pipe; it also includes a rotating shaft, a high-speed turbine cutter disc, an annular fixed cutter, an exhaust pipe, a drive mechanism, a feeding mechanism, a crushing mechanism, and a discharge mechanism; the grinding cylinder is rotatably connected to the rotating shaft; the rotating shaft is equipped with a high-speed turbine cutter disc; an annular fixed cutter is installed on the inner wall of the grinding cylinder, and the annular fixed cutter cooperates with the high-speed turbine cutter disc; several exhaust pipes arranged in an annular array are connected to the inner side wall of the grinding cylinder, and the exhaust outlet of the exhaust pipe is located above the high-speed turbine cutter disc; the workbench and the rotating shaft are jointly connected to a drive mechanism for driving the rotating shaft and the high-speed turbine cutter disc to rotate; a feeding mechanism is connected to the upper part of the feed hopper; a crushing mechanism is connected to the upper part of the processing chamber; and a discharge mechanism is jointly connected to the workbench and the discharge pipe.

[0006] Furthermore, it also includes a hollow cylinder and a water inlet; a hollow cylinder is provided on the outside of the grinding cylinder, and all air ducts pass through the inside of the hollow cylinder; a water inlet is provided on the upper part of the hollow cylinder.

[0007] Furthermore, it also includes a partition, a first partition strip, and a second partition strip; the number of water inlets is set to two, one of which is a water inlet and the other is a water outlet; a partition is set between the two water inlets and inside the hollow cylinder; several annularly distributed first partition strips and second partition strips are set inside the hollow cylinder; there is a gap between the lower end of the first partition strip and the bottom surface of the hollow cylinder, and a gap between the upper end of the second partition strip and the top surface of the hollow cylinder; the several first partition strips and several second partition strips are staggered.

[0008] Furthermore, the drive mechanism includes a first power motor, a first gear, and a second gear; the worktable is equipped with the first power motor; the output shaft of the first power motor is fixedly connected to the first gear; the lower end of the rotating shaft passes through the grinding cylinder and is fixedly connected to the second gear, and the second gear meshes with the first gear.

[0009] Furthermore, the feeding mechanism includes a pressure roller, a third gear, and a second power motor; two pressure rollers distributed on the left and right are rotatably connected to the inlet of the feeding hopper; each pressure roller is fixedly connected to a third gear, and the two third gears mesh with each other; a second power motor is installed on the feeding hopper, and the output shaft of the second power motor is fixedly connected to one of the pressure rollers.

[0010] Furthermore, each pressure roller has several anti-slip protrusions on its outer ring surface.

[0011] Furthermore, the crushing mechanism includes a cutter roller, moving cutters, a fixed cutter holder, a fourth gear, and a drive motor; the processing chamber is rotatably connected to two cutter rollers distributed front and rear; each cutter roller has several moving cutters arranged in a spiral pattern on its surface; the moving cutters on the two cutter rollers are staggered; each cutter roller has a fixed cutter holder installed on one side facing the processing chamber, and each fixed cutter holder is staggered with the moving cutter on the corresponding side cutter roller; each cutter roller has a fourth gear fixedly connected after penetrating the inner wall of the processing chamber at its end, and the two fourth gears mesh with each other; a drive motor is mounted on the bracket, and the output shaft of the drive motor is fixedly connected to one of the cutter rollers.

[0012] Furthermore, the discharge mechanism includes a negative pressure discharge fan, an air duct, and a connecting pipe; the workbench is equipped with a negative pressure discharge fan; the air outlet of the negative pressure discharge fan is connected to the air duct, and the air duct is fixedly connected to the workbench; the air duct and the discharge pipe are connected by a connecting pipe perpendicular to the air duct.

[0013] Furthermore, it also includes an L-shaped water supply pipe and an atomizing spray head; wherein the water supply port, which is set as a drain outlet, is connected to an L-shaped water supply pipe, and the other end of the L-shaped water supply pipe passes downward through the top of the feed hopper and faces the crushing mechanism, and the L-shaped water supply pipe is fixed to the outer wall of the processing chamber; the L-shaped water supply pipe is connected to an atomizing spray head.

[0014] The beneficial effects of this invention are:

[0015] 1. This invention adopts a two-stage crushing structure of "pre-shearing and shredding by the crushing mechanism plus low-temperature grinding by a high-speed turbine cutter disc" and is equipped with axial air cooling. This can stably control the working temperature inside the grinding cylinder to below 50 degrees Celsius, which is far below the Vicat softening point of PVC material. This avoids the problems of PVC heat-sensitive materials softening, sticking, and yellowing due to heat. The final recycled powder produced has a uniform particle size and can be directly mixed with new PVC material at a ratio of 30% to 50% for extrusion production of pipes and profiles. The physical properties of the products can be kept consistent with those of products made from new material, fully meeting the downstream industrial production standards.

[0016] 2. This invention fills the hollow cylinder with cooling water through the water inlet, forming an annular water-cooled sleeve on the outside of the grinding cylinder. This continuously removes heat from the inside of the grinding cylinder. The annular water-cooled sleeve not only cools the grinding cylinder and its internal cutting tools, but also pre-cools the cold air flowing through the air duct, further enhancing the cooling effect of the cold air. Thus, by adopting a two-stage crushing structure of "pre-shearing and shredding by the crushing mechanism + low-temperature grinding by the high-speed turbine cutter disc", combined with the annular water-cooled sleeve and axial air-cooling, the working temperature inside the grinding cylinder is further reduced to a level far below the Vicat softening point of PVC material, avoiding the problems of PVC heat-sensitive materials softening, sticking, and yellowing due to heat. Furthermore, during the above process, cold water can be injected into the hollow cylinder from the water inlet, which is set as the water inlet. Under the action of the baffle, the first partition bar, and the second partition bar, the injected cooling water flows in an S-shaped trajectory with the beginning and end connected, and finally exits from the water inlet, which is set as the drain outlet, forming a continuous flow of cooling water. This continuously carries away the heat inside the grinding cylinder, achieving a better cooling effect and avoiding excessively high local temperatures.

[0017] 3. This invention uses an L-shaped water pipe to transport cooling water discharged from the drain outlet to an atomizing spray head, which then sprays the water upwards onto the crushing mechanism to provide precise auxiliary cooling. Simultaneously, it sprays the PVC film waste generated during the crushing process to reduce dust. This solves the problems of existing technologies where fine PVC powder and fiber fragments are severely dispersed during crushing, polluting the workshop environment, and where the cutting tools wear out quickly under high temperature and high load conditions, resulting in short maintenance cycles, frequent parts replacements, and high overall operating costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure disclosed in this invention;

[0019] Figure 2 This is a partial structural diagram disclosed in this invention;

[0020] Figure 3 This is a schematic diagram of the drive mechanism disclosed in this invention;

[0021] Figure 4 This is a cross-sectional view of the processing chamber and feed hopper disclosed in this invention;

[0022] Figure 5 This is a schematic diagram of the crushing mechanism disclosed in this invention;

[0023] Figure 6 This is a schematic diagram of the hollow cylinder structure disclosed in this invention;

[0024] Figure 7 This is a schematic diagram of the combined structure of the partition, the first partition strip, and the second partition strip disclosed in this invention.

[0025] Figure 8 This is a cross-sectional view of the grinding cylinder disclosed in this invention.

[0026] The markings in the attached diagram are as follows: 1-Workbench, 2-Support, 3-Processing chamber, 4-Feed hopper, 5-Grinding cylinder, 6-Discharge pipe, 7-Rotating shaft, 8-High-speed turbine cutter disc, 9-Annular fixed cutter, 10-Air duct, 11-Hollow cylinder, 12-Water inlet, 13-Baffle, 14-First dividing strip, 15-Second dividing strip, 20-First power motor, 21-First gear, 22-Second gear, 30-Pressure roller, 31-Third gear, 32-Second power motor, 33-Anti-slip burrs, 40-Cutter roller, 41-Moving cutter, 42-Fixed cutter holder, 43-Fourth gear, 44-Drive motor, 50-Negative pressure discharge fan, 51-Air duct, 52-Connecting pipe, 60-L-shaped water pipe, 61-Atomizing spray head. Detailed Implementation

[0027] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0028] Example 1

[0029] A PVC film waste crushing and recycling equipment, such as Figures 1-8 As shown, it includes a workbench 1, a support 2, a processing chamber 3, a feed hopper 4, a grinding cylinder 5, and a discharge pipe 6; the workbench 1 is equipped with the support 2; the support 2 is equipped with the processing chamber 3; the processing chamber 3 is flanged and connected to the feed hopper 4; the feed hopper 4 is fixedly connected to and connected to the grinding cylinder 5; the grinding cylinder 5 is connected to the discharge pipe 6.

[0030] It also includes a rotating shaft 7, a high-speed turbine cutter head 8, an annular fixed cutter 9, an exhaust pipe 10, a drive mechanism, a feeding mechanism, a crushing mechanism, and an exhaust mechanism; the grinding cylinder 5 is rotatably connected to the rotating shaft 7; the rotating shaft 7 is equipped with the high-speed turbine cutter head 8; the annular fixed cutter 9 is installed on the inner wall of the grinding cylinder 5, and the annular fixed cutter 9 cooperates with the high-speed turbine cutter head 8; the inner side wall of the grinding cylinder 5 is connected to several exhaust pipes 10 arranged in an annular array, and the air outlet of the exhaust pipe 10 is located above the high-speed turbine cutter head 8; the worktable 1 and the rotating shaft 7 are jointly connected to a drive mechanism for driving the rotating shaft 7 and the high-speed turbine cutter head 8 to rotate; the upper part of the feed hopper 4 is connected to the feeding mechanism; the upper part of the processing chamber 3 is connected to the crushing mechanism; the worktable 1 and the exhaust pipe 6 are jointly connected to the exhaust mechanism.

[0031] The specific operation of this embodiment is as follows:

[0032] First, PVC film waste is fed into the hopper 4 through the upper opening of the open-type feed hopper 4, and the PVC film waste is pre-compressed by the feeding mechanism, which makes it easy to push whole rolls of film and packaged waste directly in without manual handling. Then, the pre-compressed PVC film waste continues to enter the crushing mechanism; then, the crushing mechanism performs preliminary crushing of the PVC film waste.

[0033] After initial crushing, the PVC film waste continues to enter the grinding cylinder 5. At the same time, the drive mechanism drives the rotating shaft 7 and the high-speed turbine cutter disc 8 to rotate. Through the cooperation between the high-speed turbine cutter disc 8 and the annular fixed cutter 9, the PVC film waste passing between the high-speed turbine cutter disc 8 and the annular fixed cutter 9 is crushed a second time.

[0034] During this process, the high-speed turbine cutter disc 8 generates an axial airflow effect when rotating at high speed. External cold air is continuously introduced into the grinding cylinder 5 through the air duct 10 connected to the inner wall of the grinding cylinder 5, simultaneously cooling the PVC film waste before and after secondary crushing and the high-speed turbine cutter disc 8, achieving a low-temperature grinding effect. Thus, by adopting a two-stage crushing structure of "pre-shearing and shredding by the crushing mechanism plus low-temperature grinding by the high-speed turbine cutter disc 8," combined with axial airflow cooling, the working temperature inside the grinding cylinder 5 can be stably controlled below 50 degrees Celsius, far below the Vicat softening point of PVC material. This avoids the problems of PVC heat-sensitive materials softening, sticking, and yellowing due to heat. The resulting recycled powder has a uniform particle size and can be directly mixed with virgin PVC material at a ratio of 30% to 50% for extrusion production of pipes and profiles. The physical properties of the finished products remain consistent with those of virgin material products, fully meeting downstream industrial production standards.

[0035] Finally, the PVC film waste, after being pulverized twice by the high-speed turbine cutter disc 8 and the annular fixed cutter 9 inside the grinding cylinder 5, is discharged and recycled through the discharge pipe 6 and the discharge mechanism.

[0036] Based on the above embodiment 1, as follows Figures 6-8 As shown, it also includes a hollow cylinder 11 and a water inlet 12; the hollow cylinder 11 is provided on the outside of the grinding cylinder 5, and all the air ducts 10 pass through the interior of the hollow cylinder 11; the water inlet 12 is provided on the upper part of the hollow cylinder 11.

[0037] It also includes a partition 13, a first partition strip 14, and a second partition strip 15; the number of water inlets 12 is set to two, one of which is a water inlet and the other is a water outlet; a partition 13 is provided between the two water inlets 12 and inside the hollow cylinder 11; several annularly distributed first partition strips 14 and second partition strips 15 are provided inside the hollow cylinder 11; there is a gap between the lower end of the first partition strip 14 and the inner bottom surface of the hollow cylinder 11, and there is a gap between the upper end of the second partition strip 15 and the inner top surface of the hollow cylinder 11; the several first partition strips 14 and several second partition strips 15 are staggered.

[0038] The specific operation of this embodiment is as follows:

[0039] During the axial air intake process using the air intake pipe 10, cooling water is injected into the hollow cylinder 11 through the water inlet 12, forming an annular water-cooled jacket on the outside of the grinding cylinder 5. This continuously removes heat from the inside of the grinding cylinder 5. The annular water-cooled jacket not only cools the grinding cylinder 5 and its internal blades, but also pre-cools the cold air flowing through the air intake pipe 10, further enhancing the cooling effect of the cold air. Thus, by adopting a two-stage crushing structure of "pre-shearing and shredding by the crushing mechanism + low-temperature grinding by the high-speed turbine cutter disc 8", combined with the dual cooling of the annular water-cooled jacket and axial air intake, the working temperature inside the grinding cylinder 5 is further reduced to a level far below the Vicat softening point of PVC material, avoiding the problems of PVC heat-sensitive materials softening, sticking, and yellowing due to heat.

[0040] Furthermore, during the above process, cold water can be injected into the hollow cylinder 11 from the water inlet 12, which is set as the water inlet. Under the action of the baffle 13, the first partition bar 14 and the second partition bar 15, the injected cooling water flows along an S-shaped trajectory with the beginning and end connected, and finally exits from the water inlet 12, which is set as the drain outlet, forming a continuous flow of cooling water. This continuously carries away the heat inside the grinding cylinder 5, achieving a better cooling effect and avoiding excessively high local temperatures.

[0041] Based on the above embodiment 2, such as Figures 1-5 As shown, the drive mechanism includes a first power motor 20, a first gear 21, and a second gear 22; the first power motor 20 is mounted on the worktable 1; the first gear 21 is fixedly connected to the output shaft of the first power motor 20; the second gear 22 is fixedly connected to the lower end of the rotating shaft 7 after passing through the grinding cylinder 5, and the second gear 22 meshes with the first gear 21. By controlling the output shaft of the first power motor 20 to drive the first gear 21 to rotate, the first gear 21 drives the second gear 22 and the rotating shaft 7 to rotate, thereby driving the high-speed turbine cutter disc 8 to rotate, which cooperates with the annular fixed blade 9 to realize the air grinding and pulverizing operation.

[0042] The feeding mechanism includes a pressure roller 30, a third gear 31, and a second power motor 32. Two pressure rollers 30 are rotatably connected to the inlet of the feeding hopper 4, which are distributed to the left and right. Each pressure roller 30 is fixedly connected to a third gear 31, and the two third gears 31 mesh with each other. The second power motor 32 is installed on the feeding hopper 4, and the output shaft of the second power motor 32 is fixedly connected to one of the pressure rollers 30. By controlling the second power motor 32 to drive the pressure roller 30 fixed to it to rotate, the third gear 31 and the other third gear 31 on it will rotate. Thus, the two third gears 31 will drive the two pressure rollers 30 to rotate in opposite directions. In this way, the two opposing pressure rollers 30 force the material to be fed, which solves the common problems of bridging, slippage, and blade entanglement in the industry when feeding thin PVC film waste.

[0043] Each pressure roller 30 has several anti-slip protrusions 33 on its outer ring surface. When the two pressure rollers 30 rotating in opposite directions force the material to be fed, the anti-slip protrusions 33 on the outer ring surface of the pressure roller 30 can firmly grasp the thin PVC film waste and prevent it from slipping and spinning.

[0044] The crushing mechanism includes a cutter roller 40, moving blades 41, a fixed blade holder 42, a fourth gear 43, and a drive motor 44. Two cutter rollers 40 are rotatably connected to the processing chamber 3, arranged front and rear. Each cutter roller 40 has several moving blades 41 arranged in a spiral pattern on its surface. The moving blades 41 on the two cutter rollers 40 are staggered. Each cutter roller 40 has a fixed blade holder 42 installed on one side facing the processing chamber 3, and each fixed blade holder 42 is staggered with the moving blade 41 on the corresponding side cutter roller 40. The end of each cutter roller 40 penetrates the inner wall of the processing chamber 3 and is then fixedly connected to… There is a fourth gear 43, and two fourth gears 43 mesh with each other; the bracket 2 is equipped with a drive motor 44, and the output shaft of the drive motor 44 is fixedly connected to one of the cutter rollers 40. When the PVC film waste passes through the crushing mechanism, the output shaft of the drive motor 44 is controlled to drive the cutter roller 40 on it to rotate, thereby driving the fourth gear 43 and the other fourth gear 43 on it to rotate in opposite directions, so that the moving blades 41 on the two cutter rollers 40 rotate in opposite directions. The PVC film waste is initially crushed by the cooperation between the moving blades 41 and the fixed blade holder 42.

[0045] The discharge mechanism includes a negative pressure discharge fan 50, an air duct 51, and a connecting pipe 52. The negative pressure discharge fan 50 is installed on the workbench 1. The air outlet of the negative pressure discharge fan 50 is connected to the air duct 51, and the air duct 51 is fixedly connected to the workbench 1. The air duct 51 and the discharge pipe 6 are connected by a connecting pipe 52 perpendicular to the air duct 51. The negative pressure discharge fan 50 outputs airflow laterally to the opening of the air duct 51. When the airflow passes laterally through the opening of the connecting pipe 52, it will generate a negative pressure suction force on the opening of the connecting pipe 52, thereby sucking the PVC film waste that has been pulverized twice inside the discharge pipe 6 and the grinding cylinder 5. The PVC film waste passes through the grinding cylinder 5, the discharge pipe 6, and the connecting pipe 52 in sequence and is discharged to the right with the airflow flowing in the air duct 51.

[0046] It also includes an L-shaped water supply pipe 60 and an atomizing spray head 61; wherein the water inlet 12, which is set as a drain outlet, is connected to an L-shaped water supply pipe 60, and the other end of the L-shaped water supply pipe 60 passes downward through the top of the feed hopper 4 and faces the crushing mechanism, and the L-shaped water supply pipe 60 is fixed to the outer wall of the processing chamber 3; the L-shaped water supply pipe 60 is connected to an atomizing spray head 61, through which the cooling water discharged from the drain outlet is transported to the atomizing spray head 61, and sprayed upwards towards the crushing mechanism through the atomizing spray head 61 to provide precise auxiliary cooling for the crushing mechanism. At the same time, it sprays and reduces dust from the PVC film waste during the crushing process, solving the problems of existing technology, such as serious dispersion of fine PVC powder and fiber debris during the crushing process, which pollutes the workshop working environment, and the rapid wear of the blades due to long-term operation under high temperature and high load, short maintenance cycle, high frequency of parts replacement, and high overall operating cost.

[0047] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A PVC film waste crushing and recycling device, comprising a workbench (1), a support (2), a processing chamber (3), a feed hopper (4), a grinding cylinder (5), and a discharge pipe (6); the workbench (1) is equipped with the support (2); the support (2) is equipped with the processing chamber (3); the processing chamber (3) is flanged and connected to the feed hopper (4); the feed hopper (4) is fixedly connected to and connected to the grinding cylinder (5); the grinding cylinder (5) is connected to the discharge pipe (6); characterized in that, It also includes a rotating shaft (7), a high-speed turbine cutter disc (8), an annular fixed cutter (9), an exhaust pipe (10), a drive mechanism, a feeding mechanism, a crushing mechanism, and an exhaust mechanism; the grinding cylinder (5) is rotatably connected to the rotating shaft (7); the rotating shaft (7) is equipped with the high-speed turbine cutter disc (8); the inner wall of the grinding cylinder (5) is equipped with an annular fixed cutter (9), and the annular fixed cutter (9) cooperates with the high-speed turbine cutter disc (8); the inner side wall of the grinding cylinder (5) is connected to several exhaust pipes (10) arranged in an annular array, and the air outlet of the exhaust pipe (10) is located above the high-speed turbine cutter disc (8); the worktable (1) and the rotating shaft (7) are jointly connected to a drive mechanism for driving the rotating shaft (7) and the high-speed turbine cutter disc (8) to rotate; the upper part of the feed hopper (4) is connected to the feeding mechanism; the upper part of the processing chamber (3) is connected to the crushing mechanism; the worktable (1) and the exhaust pipe (6) are jointly connected to the exhaust mechanism.

2. The PVC film waste crushing and recycling equipment according to claim 1, characterized in that, It also includes a hollow cylinder (11) and a water inlet (12); a hollow cylinder (11) is provided on the outside of the grinding cylinder (5), and all the air ducts (10) pass through the inside of the hollow cylinder (11); a water inlet (12) is provided on the upper part of the hollow cylinder (11).

3. The PVC film waste crushing and recycling equipment according to claim 2, characterized in that, It also includes a partition (13), a first partition strip (14), and a second partition strip (15); the number of water inlets (12) is set to two, one of which is a water inlet and the other is a water outlet; a partition (13) is set between the two water inlets (12) and inside the hollow cylinder (11); several first partition strips (14) and second partition strips (15) are arranged in a ring inside the hollow cylinder (11); there is a gap between the lower end of the first partition strip (14) and the bottom surface of the hollow cylinder (11), and there is a gap between the upper end of the second partition strip (15) and the top surface of the hollow cylinder (11); the several first partition strips (14) and the several second partition strips (15) are staggered.

4. The PVC film waste crushing and recycling equipment according to claim 3, characterized in that, The drive mechanism includes a first power motor (20), a first gear (21), and a second gear (22); the first power motor (20) is installed on the worktable (1); the first gear (21) is fixedly connected to the output shaft of the first power motor (20); the second gear (22) is fixedly connected to the lower end of the rotating shaft (7) after passing through the grinding cylinder (5), and the second gear (22) meshes with the first gear (21).

5. The PVC film waste crushing and recycling equipment according to claim 4, characterized in that, The feeding mechanism includes a pressure roller (30), a third gear (31), and a second power motor (32); two pressure rollers (30) are rotatably connected to the feed inlet of the feeding hopper (4) and distributed on the left and right; each pressure roller (30) is fixedly connected to a third gear (31), and the two third gears (31) mesh with each other; a second power motor (32) is installed on the feeding hopper (4), and the output shaft of the second power motor (32) is fixedly connected to one of the pressure rollers (30).

6. The PVC film waste crushing and recycling equipment according to claim 5, characterized in that, Each pressure roller (30) has several anti-slip protrusions (33) on its outer ring surface.

7. The PVC film waste crushing and recycling equipment according to claim 6, characterized in that, The crushing mechanism includes a cutter roller (40), a moving cutter (41), a fixed cutter holder (42), a fourth gear (43), and a drive motor (44); the processing chamber (3) is rotatably connected to two cutter rollers (40) distributed front and back; each cutter roller (40) has several moving cutters (41) arranged in a spiral pattern on its surface; the moving cutters (41) on the two cutter rollers (40) are staggered; each cutter roller (40) has a fixed cutter holder (42) installed on one side facing the processing chamber (3), and each fixed cutter holder (42) is staggered with the moving cutter (41) on the corresponding side cutter roller (40); each cutter roller (40) has a fourth gear (43) fixedly connected after penetrating the inner wall of the processing chamber (3) at its end, and the two fourth gears (43) mesh with each other; the bracket (2) is equipped with a drive motor (44), and the output shaft of the drive motor (44) is fixedly connected to one of the cutter rollers (40).

8. The PVC film waste crushing and recycling equipment according to claim 7, characterized in that, The discharge mechanism includes a negative pressure discharge fan (50), an air duct (51) and a connecting pipe (52); the workbench (1) is equipped with a negative pressure discharge fan (50); the air outlet of the negative pressure discharge fan (50) is connected to the air duct (51), and the air duct (51) is fixedly connected to the workbench (1); the air duct (51) and the discharge pipe (6) are connected by a connecting pipe (52) perpendicular to the air duct (51).

9. A PVC film waste crushing and recycling equipment according to claim 8, characterized in that, It also includes an L-shaped water supply pipe (60) and an atomizing spray head (61); wherein the water inlet (12) which is set as a drain outlet is connected to an L-shaped water supply pipe (60), and the other end of the L-shaped water supply pipe (60) passes downward through the top of the feed hopper (4) and faces the crushing mechanism, and the L-shaped water supply pipe (60) is fixed to the outer wall of the processing chamber (3); the L-shaped water supply pipe (60) is connected to an atomizing spray head (61).

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