Modified plastic crushing and sieving equipment

Abstract

The invention discloses modified plastic crushing and screening equipment, and particularly relates to the field of plastic recycling, the modified plastic crushing and screening equipment comprises a water washing and crushing mechanism, a floating separation and screening mechanism is fixedly mounted at the bottom of the water washing and crushing mechanism, and the bottom of the floating separation and screening mechanism communicates with a water circulation treatment mechanism; the outer wall of the first soaking barrel is communicated with a first material guide table and a second material guide table which are arranged in an inclined state, and two material guide auxiliary barrels which are communicated with the first material guide table and the second material guide table respectively are fixedly mounted on the inner wall of the first soaking barrel; the material guiding auxiliary barrels which are parallel to one another and have the height difference are arranged in the first soaking barrel, a corresponding power assembly drives a scraper to horizontally move in a reciprocating mode, primary layering, screening and discharging are conducted on crushed plastic particles with different densities in combination with water flow, the purity of the screened plastic particles is improved, and the quality of the plastic particles is improved. And the subsequent processing efficiency and quality are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of plastic recycling, and more particularly to a modified plastic crushing and screening device. Background Art

[0002] In the field of waste recycling, plastic waste can be used as the basic raw material for modified plastics after crushing, cleaning, screening and melt regeneration. These recycled plastics are modified by adding various modifiers, such as reinforcing agents, plasticizers, flame retardants, etc., to give them specific properties and uses. In this way, plastic waste can be recycled and reused to become a low-cost raw material for the production of modified plastics.

[0003] In the existing recycling, crushing and screening of plastic or waste containing plastic, the plastic waste is usually crushed and then directly screened according to the particle size, which makes it difficult to efficiently separate light and heavy plastic fragments, resulting in plastic particles of different densities being mixed together, reducing the sorting purity and affecting the efficiency of subsequent processing, making it impossible to ensure efficient resource recovery and reuse. The present invention proposes a modified plastic crushing and screening equipment to solve the above problems. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a modified plastic crushing and screening equipment, which arranges mutually parallel material guiding auxiliary cylinders and corresponding power components inside the first soaking cylinder to drive the scraper to reciprocate, and utilizes water flow and power components to drive the crushed plastic particles to be initially layered, screened and discharged, ensuring that plastic particles of different densities can be effectively separated, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: a modified plastic crushing and screening device, comprising a water-washing crushing mechanism, a floating separation screening mechanism is fixedly installed at the bottom of the water-washing crushing mechanism, and a water circulation treatment mechanism is connected to the bottom of the floating separation screening mechanism; The floating separation and screening mechanism comprises a first soaking cylinder, the outer wall of which is connected to a first material guide platform and a second material guide platform which are arranged in an inclined state, and two material guide auxiliary cylinders which are connected to the first material guide platform and the second material guide platform are fixedly installed on the inner wall of the first soaking cylinder; The inner cavities of the two material guide auxiliary cylinders are fixedly installed with limit frames, and the inner cavities of the limit frames are slidably installed with a sliding rod set in a horizontal state, and the outer wall of the sliding rod is fixedly installed with a first filter plate slidably connected to the material guide auxiliary cylinder, one side of the first filter plate is fixedly connected with a threaded screw, one end of the threaded screw is fixedly connected with a connecting frame, and scrapers are rotatably connected to both sides of the connecting frame, and the outer wall of the threaded screw is engaged with a power component for driving it to translate.

[0006] In a preferred embodiment, the power assembly includes a support plate fixedly mounted on the outer wall of the material guiding auxiliary cylinder, an internal threaded sleeve threadedly connected to the threaded screw is rotatably mounted inside the support plate, and a first external gear plate is fixedly mounted on one side of the internal threaded sleeve close to the first filter plate.

[0007] In a preferred embodiment, an electric rotating rod rotatably connected to the first soaking cylinder is provided between the two material guiding auxiliary cylinders, and two second external gear plates respectively meshing with the first external gear plates are fixedly mounted on the outer wall of the electric rotating rod.

[0008] In a preferred embodiment, the outer circumferential diameter length of the first filter plate is consistent with the inner circumferential diameter length of the material guiding auxiliary cylinder, the outer circumferential diameter length of the first external gear plate is greater than the outer circumferential diameter length of the material guiding auxiliary cylinder, and a plurality of through grooves arranged in a through shape are opened inside the first external gear plate.

[0009] In a preferred embodiment, the water circulation treatment mechanism includes a second soaking cylinder connected to the bottom of the first soaking cylinder, the second soaking cylinder and the first soaking cylinder are arranged in a threaded connection state, and a sealing assembly is provided at the threaded connection between the second soaking cylinder and the first soaking cylinder, a plurality of second filter plates are fixedly installed on the inner wall of the second soaking cylinder, and the bottom of the second soaking cylinder is connected to a first drain pipe.

[0010] In a preferred embodiment, the mesh sizes of the plurality of second filter plates are different, and the mesh sizes of the plurality of second filter plates are arranged in order from large to small from top to bottom; One end of the first drain pipe is threadedly connected to the second drain pipe, one end of the second drain pipe is connected to a water storage bucket, and a first water pump is fixedly installed at the connection between the second drain pipe and the water storage bucket.

[0011] In a preferred embodiment, the water washing and crushing mechanism comprises a crushing cylinder arranged on the top of the first soaking cylinder, and a support frame is fixedly installed on the outer wall of the crushing cylinder, and the support frame surrounds the outer periphery of the first soaking cylinder and the second soaking cylinder and is fixedly connected between the first soaking cylinder; The top and bottom of the crushing cylinder are both open, the crushing cylinder and the first soaking cylinder are connected to each other, and a hollow partition is fixedly installed on the bottom of the crushing cylinder, a double-layer crushing blade is rotatably installed on the top of the hollow partition, and a plurality of directional fixed blades are fixedly installed in a circular shape and equidistantly on the inner wall of the crushing cylinder.

[0012] In a preferred embodiment, a first water pipe is fixedly mounted on the inner wall of the crushing cylinder, a plurality of sprinkler heads are connected in a circular shape and equidistantly in sequence on the outer wall of the first water pipe, and a plurality of diversion pipes are connected on the outer wall of the first water pipe.

[0013] In a preferred embodiment, a water pump is provided on the top of the water storage barrel, a second water pipe connected to the diversion pipe is provided on the top of the water pump, and a second water pump is fixedly installed at the connection between the water pump and the water storage barrel.

[0014] Technical effects and advantages of the present invention: 1. The present invention arranges the first material guide platform and the second material guide platform and their corresponding material guide auxiliary cylinders on the outer wall of the first soaking cylinder, and combines the power assembly to drive the scraper to scrape the plastic particles on the water surface and the bottom of the water, so as to realize the layered separation and further cleaning and classification of light and heavy plastic fragments by utilizing the density difference of plastic particles, thereby more effectively distinguishing light and heavy plastics, reducing the confusion of particles with similar sizes but different materials, improving the purity of the plastic particles after screening, and ensuring the efficiency and quality of subsequent processing; 2. The present invention provides double-layer crushing blades and directional fixed blades on the inner wall of the crushing cylinder, so that the plastic waste is cut more evenly during the crushing process. The shearing effect not only reduces the resistance, but also reduces the wear of the blades, thereby improving the overall crushing efficiency and saving energy consumption; 3. The present invention realizes layer-by-layer filtration of impurity particles of different sizes by setting a water circulation treatment mechanism and combining the multi-layer second filter plates, thereby ensuring that particles and suspended matter in the wastewater are completely filtered, thereby ensuring efficient recycling of water, reducing water resource waste, and meeting environmental protection requirements; 4. The present invention arranges a plurality of uniformly spraying spray heads inside the crushing cylinder, so that during the crushing process of the plastic waste, the crushed plastic particles are initially rinsed by continuous water spraying to remove dust, dirt and other impurities, thereby reducing additional cleaning steps. Compared with the traditional method of separating crushing and cleaning, this method can save time, reduce energy consumption, and improve overall production efficiency, making the processing flow more compact and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the axial side structure of the present invention.

[0017] Figure 3 It is a side sectional view of the partial structure of the water washing and crushing mechanism and the floating separation and screening mechanism of the present invention.

[0018] Figure 4 For the present invention Figure 3 A-section structure enlarged view.

[0019] Figure 5 It is a partial structural front cross-sectional view of the floating separation screening mechanism and the water circulation treatment mechanism of the present invention.

[0020] Figure 6 For the present invention Figure 5 Enlarged view of the structure of part B.

[0021] Figure 7 It is a side section view of the overall structure of the present invention.

[0022] Figure 8 For the present invention Figure 7 Enlarged view of the C structure.

[0023] Fig. 9 For the present invention Figure 7 Enlarged view of the D structure.

[0024] The accompanying drawings are marked as follows: 1 water washing and crushing mechanism, 101 crushing cylinder, 102 supporting frame, 103 hollow partition plate, 104 double-layer crushing blade, 105 directional fixed blade, 106 first water guide pipe, 107 spray head, 108 diversion pipe, 2 floating separation and screening mechanism, 21 first soaking cylinder, 22 first material guide platform, 23 second material guide platform, 24 material guide auxiliary cylinder, 25 limit frame, 26 sliding rod, 27 threaded screw, 28 connecting frame, 29 scraper, 210 first filter plate, 211 supporting plate, 212 internal threaded pipe sleeve, 213 first external gear plate, 214 through groove, 215 second external gear plate, 216 electric rotating rod, 3 water circulation treatment mechanism, 31 second soaking cylinder, 32 second filter plate, 33 first drain pipe, 34 second drain pipe, 35 water storage bucket, 36 first water pump, 37 water pump, 38 second water guide pipe, 39 second water pump. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Refer to the instruction manual Figure 1-9 , a modified plastic crushing and screening device according to an embodiment of the present invention, such as Figure 1 As shown, it comprises a water washing and crushing mechanism 1, a floating separation and screening mechanism 2 is fixedly installed at the bottom of the water washing and crushing mechanism 1, and a water circulation treatment mechanism 3 is connected to the bottom of the floating separation and screening mechanism 2; Reference Figure 3 and Figure 5 As shown, the floating separation screening mechanism 2 includes a first soaking cylinder 21, the outer wall of the first soaking cylinder 21 is connected to a first material guide platform 22 and a second material guide platform 23 which are arranged in an inclined state, and two material guide auxiliary cylinders 24 which are respectively connected to the first material guide platform 22 and the second material guide platform 23 are fixedly installed on the inner wall of the first soaking cylinder 21, wherein the two material guide auxiliary cylinders 24 are arranged in parallel with each other, and the material guide auxiliary cylinder 24 connected to the first material guide platform 22 is arranged on the top of the material guide auxiliary cylinder 24 connected to the second material guide platform 23. In actual use, the inner cavity of the first soaking cylinder 21 is filled with flowing water, and the combined water flow passes through the first material guide platform 22 and the second material guide platform 23 to The water is discharged outward so that the height of the water is kept flush with the horizontal center line of the material guiding auxiliary cylinder 24 connected to the first material guiding platform 22, and the material guiding auxiliary cylinder 24 connected to the second material guiding platform 23 is attached to the bottom of the first soaking cylinder 21. The purpose of such arrangement is that when the plastic or waste particles containing plastic after being crushed by the water washing and crushing mechanism 1 fall into the inner cavity of the first soaking cylinder 21, the light particles float on the water surface and the heavy particles sink to the bottom of the water. The height difference between the first material guiding platform 22 and the second material guiding platform 23 is used to ensure that the particles have enough time to be separated, and then more pure materials can be separated, which is helpful to improve the purity and quality of the recycled plastics; At the same time, refer to Figure 4 and Figure 6As shown, the inner cavities of the two material guiding auxiliary cylinders 24 are fixedly installed with limit frames 25, and the inner cavities of the limit frames 25 are slidably installed with a sliding rod 26 set in a horizontal state, and the outer wall of the sliding rod 26 is fixedly installed with a first filter plate 210 slidably connected to the material guiding auxiliary cylinder 24, and one side of the first filter plate 210 is fixedly connected with a threaded screw 27, one end of the threaded screw 27 is fixedly connected with a connecting frame 28, and both sides of the connecting frame 28 are rotatably connected with scrapers 29, and the outer wall of the threaded screw 27 is engaged with a power component for driving it to translate, wherein a limit slide groove is provided between the first filter plate 210 and the material guiding auxiliary cylinder 24, so that the first filter plate 210 is set in a translational motion state in the inner cavity of the material guiding auxiliary cylinder 24 and will not rotate, and, in normal state, the sliding rod 26 drives the first filter plate 210 to block the side of the material guiding auxiliary cylinder 24 away from the inner wall of the first soaking cylinder 21, and the threaded screw 27 extends out of the material guiding auxiliary cylinder 2 4, when the power assembly is turned on to make the threaded screw 27 translate in the direction of the inner cavity of the material guide auxiliary cylinder 24, the connecting frame 28 can be gradually driven to pull the scraper 29 to move in the direction of the material guide auxiliary cylinder 24, so that the light particles floating on the water surface and the heavy particles settled at the bottom of the first soaking cylinder 21 are scraped by the displacement of the scraper 29 and move to the inner cavity of the corresponding material guide auxiliary cylinder 24, and in the process of moving, the light particles floating on the water surface and the heavy particles settled at the bottom of the first soaking cylinder 21 are scraped into the inner cavity of the material guide auxiliary cylinder 24 and contacted with the first filter plate 210 for filtration, so as to discharge the particles of different densities through the first material guide table 22 and the second material guide table 23 along with the water flow and enter the next device, so as to obtain uniform plastic particles in the plastic recycling process, so as to reduce the complexity of subsequent melting, extrusion or molding processes, and reduce the scrap rate and the loss of processing equipment.

[0027] Further, see Figure 6As shown, the power assembly includes a support plate 211 fixedly mounted on the outer wall of the material guiding auxiliary cylinder 24, an internal threaded sleeve 212 threadedly connected to the threaded screw 27 is rotatably mounted inside the support plate 211, and a first external gear plate 213 is fixedly mounted on the side of the internal threaded sleeve 212 close to the first filter plate 210. In actual use, by driving the first external gear plate 213 to rotate, the internal threaded sleeve 212 can be rotated on the outer wall of the threaded screw 27, thereby driving the threaded screw 27 to move in a straight horizontal position in its inner cavity. The first filter plate 210 is driven to move back and forth with the slide bar 26 in the inner cavity of the guide auxiliary cylinder 24. When the first filter plate 210 moves toward the limit frame 25, it can be used to assist in guiding the water flow and the plastic particles in the water into the inner cavity of the guide auxiliary cylinder 24. When the qualified particles are filtered and discharged by the first filter plate 210, the unqualified particles are left on one side of the first filter plate 210. At this time, the movement of the first filter plate 210 and the slide bar 26 is restored, and the unqualified particles are pushed into the water again. At the same time, combined Figure 3-4 As shown, an electric rotating rod 216 rotatably connected to the first soaking cylinder 21 is provided between the two material guiding auxiliary cylinders 24, and two second external gear plates 215 respectively meshing with the first external gear plate 213 are fixedly installed on the outer wall of the electric rotating rod 216. In actual use, by starting the electric rotating rod 216 to rotate, the second external gear plate 215 can be synchronously driven to rotate by the second external gear plate 215, and then the first external gear plate 213 is driven to rotate to drive the threaded screw 27, the connecting frame 28 and the scraper 29 to translate as a whole in the inner cavity of the first soaking cylinder 21 to scrape and export the plastic particles, wherein the outer circumferential diameter length of the first filter plate 210 is consistent with the inner circumferential diameter length of the material guiding auxiliary cylinder 24. The purpose of such a setting is There is a certain sealing type between the first filter plate 210 and the material guiding auxiliary cylinder 24, so that during the movement, the crushed particles will not seep out from the contact point between the first filter plate 210 and the material guiding auxiliary cylinder 24, thereby improving the screening accuracy of the first filter plate 210. At the same time, the outer circumferential diameter length of the first external gear plate 213 is greater than the outer circumferential diameter length of the material guiding auxiliary cylinder 24, and a plurality of through grooves 214 arranged in a through shape are opened inside the first external gear plate 213. The purpose of such a setting is that when the through groove 214 rotates to assist in driving the threaded screw 27 to translate, the setting of multiple through grooves 214 will not affect the problem of plastic crushed particles in the water passing through and contacting and screening with the first filter plate 210.

[0028] As a further extension of this scheme, refer to Figure 3 , Figure 7 and Fig. 9As shown, the water circulation treatment mechanism 3 includes a second soaking cylinder 31 connected to the bottom of the first soaking cylinder 21, the second soaking cylinder 31 is arranged in a threaded connection state with the first soaking cylinder 21, and a sealing component is arranged at the threaded connection between the second soaking cylinder 31 and the first soaking cylinder 21, so as to maintain the convenience of disassembly and assembly between the first soaking cylinder 21 and the second soaking cylinder 31, while not affecting the sealing problem of water flow. At the same time, a plurality of second filter plates 32 are fixedly installed on the inner wall of the second soaking cylinder 31, and a first drain pipe 33 is arranged at the bottom of the second soaking cylinder 31. In actual use, the top of the second filter plate 32 on the top layer of the inner wall of the second soaking cylinder 31 is flush with the bottom of the first filter plate 210, so that the precipitated heavy plastic particles are placed on the top of the second filter plate 32, wherein the first drain pipe 33 is provided for discharging waste water, and by making the first soaking cylinder 21 and the second soaking cylinder 31 easy to disassemble and assemble, the treated waste water can be conveniently discharged after the work is completed; The mesh sizes of the second filter plates 32 are different, and the mesh sizes of the second filter plates 32 are arranged in order from large to small from top to bottom, so as to filter out impurity particles of different sizes layer by layer. When in use, after the sewage soaked with plastic particles passes through the multiple layers of the second filter plates 32, the water flows through the second filter plates 32 with coarse mesh on the top to filter out large particles of impurities, such as larger plastic fragments or solid impurities. Then, the water flows through the fine mesh in the middle to further remove smaller particles. Finally, the water The second filter plate 32 entering the lowest point completely filters out tiny particles, suspended matter and other residual impurities, and then the filtered water is discharged outward through the first drain pipe 33. At the same time, one end of the first drain pipe 33 is threadedly connected to the second drain pipe 34, and one end of the second drain pipe 34 is connected to a water storage barrel 35. A first water pump 36 is fixedly installed at the connection between the second drain pipe 34 and the water storage barrel 35. The discharged water is returned to the water storage barrel 35 through the first water pump 36 for storage, so as to be used for the next time of cleaning plastic or waste containing plastic.

[0029] As a further extension of this scheme, refer to Figure 3 and Figure 7-8 As shown, the water washing and crushing mechanism 1 includes a crushing cylinder 101 arranged on the top of the first soaking cylinder 21, and a support frame 102 is fixedly installed on the outer wall of the crushing cylinder 101. The support frame 102 surrounds the outer periphery of the first soaking cylinder 21 and the second soaking cylinder 31 and is fixedly connected to the first soaking cylinder 21; The top and bottom of the crushing cylinder 101 are both open, the crushing cylinder 101 and the first soaking cylinder 21 are connected to each other, and a hollow partition 103 is fixedly installed at the bottom of the crushing cylinder 101, and a double-layer crushing blade 104 is rotatably installed on the top of the hollow partition 103. A plurality of directional fixed blades 105 are fixedly installed in a circular shape and equidistantly in sequence on the inner wall of the crushing cylinder 101. In actual use, the double-layer crushing blades 104 are activated to crush the plastic or waste containing plastic in the inner cavity of the crushing cylinder 101, and the plastic waste and the directional fixed blades 105 are rotatably installed on the top of the hollow partition 103. During the process of the fixed blade 105 contacting the inner wall, the crushing process is performed again. The purpose of this setting is to have higher cutting efficiency and more uniform particle size compared to using only the traditional rotating blade. The shear force generated when the double-layer crushing blade 104 and the directional fixed blade 105 work together reduces the cutting resistance, can quickly shred the plastic waste, avoid excessive wear of the blade, and can accurately control the size of the plastic particles, making the particles more uniform. In addition, the shear effect can effectively improve the stability of the cutting process, reduce energy consumption, and improve the overall crushing efficiency; Among them, a first water pipe 106 is fixedly installed on the inner wall of the crushing cylinder 101, and a plurality of spray heads 107 are connected in a circular shape and equidistantly arranged on the outer wall of the first water pipe 106, and a plurality of shunt pipes 108 are connected to the outer wall of the first water pipe 106. In actual use, the plurality of shunt pipes 108 are used to disperse and guide external water to the inner cavity of the first water pipe 106, and spray it evenly from the plurality of spray heads 107, so that in the process of crushing the plastic waste, the plastic particles during crushing are initially rinsed by continuous water spraying to remove impurities such as dust and dirt, and as the water flows naturally through the hollow partition 103, the crushed plastic particles are driven to fall directly into the inner cavity of the first soaking cylinder 21, and the unqualified plastic particles are left in the crushing cylinder 101 for crushing again; Further, see Figure 7 and Fig. 9 As shown, a pumping pipe 37 is provided at the top of the water storage barrel 35, and a second water pipe 38 connected to the diversion pipe 108 is provided at the top of the pumping pipe 37. A second pumping pump 39 is fixedly installed at the connection between the pumping pipe 37 and the water storage barrel 35. In actual use, the water that enters the water storage barrel 35 after filtration is transported to the inside of the first water pipe 106 through the pumping pipe 37, the second water pipe 38 and multiple diversion pipes 108 by the second pumping pump 39 for uniform spraying, and the water flow naturally falls into the inside of the first soaking cylinder 21 to realize continuous water circulation, effectively reduce the waste of water resources, and meet environmental protection requirements.

[0030] In the specific implementation, first, the plastic waste is crushed by the synergistic effect of the double-layer crushing blade 104 and the directional fixed blade 105 inside the crushing mechanism 101, and at the same time, the multiple spray heads 107 perform preliminary washing of the crushed plastic particles by continuously spraying water to remove dust, dirt and other impurities; Then, the crushed plastic particles fall into the first soaking cylinder 21 in combination with the natural fall of the sprayed water. The water flow in the soaking cylinder makes the light fragments float on the water surface and the heavy fragments sink to the bottom of the water. At this time, the light and heavy plastic particles are initially separated by layers according to their density. At the same time, the scraper 29 reciprocates and translates under the drive of the power component, scraping the light and heavy fragments respectively, and pushing them into the guide auxiliary cylinder 24. The plastic particles of different densities are screened by the first filter plate 210 during the movement. Afterwards, the screened water flows into the second soaking cylinder 31, and is filtered through the multi-layer second filter plates 32 to filter impurity particles of different sizes layer by layer to ensure the purity of the water flow. The filtered water is pumped out by the pump 36 and flows out of the drain pipe 33 into the water storage barrel 35, and then is pumped out by (39) and flows back into the interior of (108) through (37) and (38), and finally is uniformly sprayed out through multiple (107) and reused in the crushing and screening process, ensuring the recycling of water resources. Finally, the plastic particles that have been screened according to density are further collected on an external traditional vibration screening mechanism for large and small particle screening, which can ensure their high purity and uniform particle size, thereby providing high-quality materials for subsequent plastic recycling processing.

[0031] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change; Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A modified plastic crushing and screening device, comprising a water-washing crushing mechanism (1), a floating separation screening mechanism (2) being fixedly mounted at the bottom of the water-washing crushing mechanism (1), and a water circulation treatment mechanism (3) being connected to the bottom of the floating separation screening mechanism (2); Features: The floating separation screening mechanism (2) comprises a first soaking cylinder (21), the outer wall of the first soaking cylinder (21) is connected to a first material guide platform (22) and a second material guide platform (23) arranged in an inclined state, and two material guide auxiliary cylinders (24) are fixedly mounted on the inner wall of the first soaking cylinder (21) and are connected to the first material guide platform (22) and the second material guide platform (23). The inner cavities of the two material guide auxiliary cylinders (24) are fixedly mounted with limit frames (25), the inner cavities of the limit frames (25) are slidably mounted with a sliding rod (26) arranged in a horizontal state, the outer wall of the sliding rod (26) is fixedly mounted with a first filter plate (210) slidably connected to the material guide auxiliary cylinder (24), one side of the first filter plate (210) is fixedly connected with a threaded screw (27), one end of the threaded screw (27) is fixedly connected with a connecting frame (28), both sides of the connecting frame (28) are rotatably connected with scrapers (29), and the outer wall of the threaded screw (27) is engaged with a power component for driving it to translate.

2. The modified plastic crushing and screening equipment according to claim 1, characterized in that: The power assembly comprises a support plate (211) fixedly mounted on the outer wall of the material guiding auxiliary cylinder (24); an internally threaded pipe sleeve (212) threadably connected to the threaded screw (27) is rotatably mounted inside the support plate (211); a first external gear plate (213) is fixedly mounted on a side of the internally threaded pipe sleeve (212) close to the first filter plate (210).

3. A modified plastic crushing and screening device according to claim 2, characterized in that: An electric rotating rod (216) rotatably connected to the first soaking cylinder (21) is provided between the two material guiding auxiliary cylinders (24), and two second external gear plates (215) respectively meshing with the first external gear plates (213) are fixedly mounted on the outer wall of the electric rotating rod (216).

4. The modified plastic crushing and screening equipment according to claim 3, characterized in that: The outer diameter length of the first filter plate (210) is consistent with the inner diameter length of the material guide auxiliary cylinder (24); the outer diameter length of the first external gear plate (213) is greater than the outer diameter length of the material guide auxiliary cylinder (24); and a plurality of through slots (214) arranged in a penetrating shape are provided inside the first external gear plate (213).

5. The modified plastic crushing and screening equipment according to claim 4, characterized in that: The water circulation treatment mechanism (3) comprises a second soaking cylinder (31) connected to the bottom of the first soaking cylinder (21), the second soaking cylinder (31) and the first soaking cylinder (21) are arranged in a threaded connection state, and a sealing component is arranged at the threaded connection between the second soaking cylinder (31) and the first soaking cylinder (21), a plurality of second filter plates (32) are fixedly mounted on the inner wall of the second soaking cylinder (31), and the bottom of the second soaking cylinder (31) is connected to a first drain pipe (33).

6. The modified plastic crushing and screening equipment according to claim 5, characterized in that: The mesh apertures arranged inside the plurality of second filter plates (32) are of different sizes, and the mesh apertures arranged inside the plurality of second filter plates (32) are arranged in order from large to small and from top to bottom; One end of the first drainage pipe (33) is threadedly connected to a second drainage pipe (34), one end of the second drainage pipe (34) is connected to a water storage bucket (35), and a first water pump (36) is fixedly installed at the connection between the second drainage pipe (34) and the water storage bucket (35).

7. The modified plastic crushing and screening equipment according to claim 6, characterized in that: The water washing and crushing mechanism (1) comprises a crushing cylinder (101) arranged on the top of the first soaking cylinder (21); a support frame (102) is fixedly mounted on the outer wall of the crushing cylinder (101); the support frame (102) surrounds the outer periphery of the first soaking cylinder (21) and the second soaking cylinder (31) and is arranged in a fixed connection with the first soaking cylinder (21); The top and bottom of the crushing cylinder (101) are both open, the crushing cylinder (101) and the first soaking cylinder (21) are connected to each other, a hollow partition (103) is fixedly mounted on the bottom of the crushing cylinder (101), a double-layer crushing blade (104) is rotatably mounted on the top of the hollow partition (103), and a plurality of directional fixed blades (105) are fixedly mounted in a circular shape and equidistantly in sequence on the inner wall of the crushing cylinder (101).

8. The modified plastic crushing and screening equipment according to claim 7, characterized in that: A first water conduit (106) is fixedly mounted on the inner wall of the crushing cylinder (101), a plurality of sprinkler heads (107) are connected in a circular shape and equidistantly arranged on the outer wall of the first water conduit (106), and a plurality of flow diversion pipes (108) are connected to the outer wall of the first water conduit (106).

9. The modified plastic crushing and screening equipment according to claim 8, characterized in that: The top of the water storage barrel (35) is connected to a water pumping pipe (37), the top of the water pumping pipe (37) is connected to a second water guide pipe (38) connected to the diversion pipe (108), and a second water pump (39) is fixedly installed at the connection between the water pumping pipe (37) and the water storage barrel (35).

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