A recycled plastic recycling pretreatment device

Abstract

The present invention relates to the field of recycled plastic recycling, and particularly to a pre-treatment device for recycled plastic recycling, which includes a housing, a crushing roller and a first DD motor; two crushing rollers are rotatably connected inside the housing; a number of first DD motors are fixedly connected to the housing; the output shaft of each first DD motor is fixedly connected to the corresponding crushing roller. In the present invention, the water mist ejected from the nozzle reduces the heat generated by friction during the operation of the crushing roller, avoiding the softening and adhesion of the recycled plastic on the crushing roller due to overheating of the crushing roller, which affects the crushing efficiency and effect of the crushing roller. The water mist is blocked by the baffle and stored. When the baffle is full of water, under the action of the gravity of the water, the baffle is driven to rotate, so that the water in the baffle flows out, that is, the flowing water impacts the crushing roller to clean the plastic chips on the crushing roller. At the same time, by setting the nozzle to be inclined away from the crushing area between the two crushing rollers, it is convenient for the water to quickly fill up on the baffle.

Description

Technical Field

[0001] The present invention relates to the field of recycled plastic recycling, and particularly to a pre-treatment device for recycled plastic recycling. Background Art

[0002] Driven by the trend of energy conservation and carbon reduction, more and more operators have invested in the research and development and manufacturing of resource recycling equipment. Especially for waste plastic recycling, during the waste plastic recycling process, the waste plastic needs to be crushed first, and then screened to separate the crushed plastic flakes from the remaining impurities. The remaining impurities refer to non-plastic materials carried in the waste plastic, such as gravel and sand. However, during continuous crushing operations, the plastic will soften due to friction-generated heat and adhere to the crushing rollers, affecting the crushing efficiency and effect of the crushing rollers. Moreover, the plastic will release harmful gases when heated, and since the hot air will flow upward, the hot air will carry the harmful gases and escape to the outside, which will endanger the physical health of the surrounding workers. In addition, when the plastic is crushed, static electricity is generated by friction, which will cause the crushed materials to agglomerate and make it difficult to transport and carry out subsequent work. Summary of the Invention

[0003] In order to overcome the disadvantages that during the waste plastic recycling process, the plastic will soften due to friction-generated heat and adhere to the crushing rollers, affecting the crushing efficiency and effect of the crushing rollers, the present invention provides a pre-treatment device for recycled plastic recycling.

[0004] Technical Solution: A pre-treatment device for recycled plastic recycling includes a housing, crushing rollers, and first DD motors; two crushing rollers are rotatably connected inside the housing; a number of first DD motors are fixedly connected to the housing; the output shaft of each first DD motor is fixedly connected to the corresponding crushing roller; it further includes a first guide plate, a second guide plate, limit blocks, and baffles; a number of first guides are penetrated through the housing, the first guides are located directly above the crushing rollers, and a number of spray nozzles are opened on each first guide plate; a number of second guide plates are fixedly connected inside the housing; a number of limit blocks are fixedly connected to each second guide plate; a number of baffles are rotatably connected to the left side inside the housing, and a number of other baffles are rotatably connected to the right side inside the housing.

[0005] Further explanation, the spray nozzles are inclined towards the crushing area between the two crushing rollers, and the spray nozzles are of a reduced-port structure with a larger inner diameter and a smaller outer diameter.

[0006] Further explanation: It further includes a separation component, which includes a separation roller, a second DD motor, a first connecting plate, an extrusion block, a first mounting frame, a first filter screen, a second connecting plate, a spring limiting rod, and a pushing component; several separation rollers are rotatably connected inside the housing, the separation rollers are located below the second material guiding plate, and several scraping blades are arranged on each separation roller; several second DD motors are fixedly connected to the housing; the output shaft of each second DD motor is fixedly connected to the corresponding separation roller; several first connecting plates are fixedly connected to each separation roller; several extrusion blocks are fixedly connected to each first connecting plate; a first mounting frame is fixedly connected to the housing, and several sliding grooves are formed on the first mounting frame; a spring limiting rod is fixedly connected to each sliding groove; a second connecting plate is connected to each spring limiting rod; all the second connecting plates are fixedly connected together to form a first filter screen; a pushing component is connected to the first filter screen.

[0007] Further explanation: The pushing component includes a third connecting plate, a sliding rod, a second filter screen, and a connecting rod; several third connecting plates are fixedly connected to the first filter screen; all the third connecting plates on the same side are connected to a sliding rod; a second filter screen is fixedly connected to each sliding rod; all the second filter screens are fixedly connected together to form a connecting rod; the connecting rod is fixedly connected to the housing.

[0008] Further explanation: The scraping blades are arranged in a spiral structure, and the spiral directions of the two scraping blades on the same separation roller are opposite.

[0009] Further explanation of the extrusion block: The first filter screen is arranged in an arc structure.

[0010] Further explanation: It further includes a drying component, which includes a second mounting frame, a heating wire, a fourth connecting plate, a fan, a first telescopic cloth, an elastic cord, and a discharging component; several second mounting frames are fixedly connected to the first mounting frame; several heating wires are fixedly connected to each second mounting frame; several fourth connecting plates are rotatably connected to the first mounting frame through torsion springs, and the fourth connecting plates are located below the corresponding heating wires; a fan is fixedly connected to each fourth connecting plate; several fourth connecting plates on the same side are jointly connected to a first telescopic cloth; several elastic cords are fixedly connected to each first telescopic cloth; all the elastic cords are jointly fixedly connected to the first filter screen; a discharging component is connected to the first mounting frame.

[0011] Further explanation: The discharging component includes a discharging plate, a second telescopic cloth, and a limiting net; a discharging plate is fixedly connected to the first mounting frame; several second telescopic cloths are fixedly connected to the discharging plate; all the second telescopic cloths are jointly fixedly connected to the first filter screen; several limiting nets are fixedly connected to the left side of the first filter screen, and several other limiting nets are fixedly connected to the right side of the first filter screen, and the upper part of the limiting net protrudes from the first filter screen.

[0012] Further explanation: All the fans are arranged in an eight - character shape.

[0013] To further explain, the first installation frame has a built-in temperature monitor.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The present invention reduces the heat generated by friction when the crushing roller is working by spraying water mist from the nozzle, so as to avoid the crushing roller overheating, which causes the recycled plastic to soften and adhere to the crushing roller during the crushing process, thereby affecting the crushing efficiency and effect of the crushing roller. The water mist is blocked by the baffle plate, and water is stored. When the baffle plate is full of water, the baffle plate is driven to rotate under the action of the gravity of the water, so that the water in the baffle plate flows out, that is, the outflowing water impacts the crushing roller to clean the plastic sheets on the crushing roller. At the same time, by making the nozzle inclined away from the crushing area between the two crushing rollers, it is convenient for the water to quickly fill up on the baffle plate;

[0015] 2. The present invention uses the separation roller and the scraper to move the plastic sheets to the front and back sides and drop them down onto the first filter screen, so that the plastic sheets that adhere to each other are dispersed to avoid affecting the conveying of the plastic sheets and subsequent work. The first connecting plate drives the extrusion block to rotate, so that the first filter screen continuously reciprocates up and down and generates shaking. The plastic sheets that fall onto the first filter screen and are dispersed are shaken off by the shaking effect, so that part of the water and impurities on the plastic sheets are shaken off and fall down through the first filter screen, which is convenient for conveying the plastic sheets and reduces the workload of cleaning impurities in the subsequent plastic sheets;

[0016] 3. The present invention spreads out the plastic sheets by limiting the position of the limiting net, thereby accelerating the drying speed of the plastic sheets. Since the four fans are arranged in an eight-shaped shape, the ejected hot air accumulates inward to prevent the hot air from overflowing. At the same time, the impurities and moisture screened by the first filter are discharged through the discharge port of the discharge plate under the limitation of the discharge plate and the second telescopic cloth. Before the recycled plastic is crushed, the waste barrel placed under the discharge port of the discharge plate collects the screened impurities and moisture to prevent the screened moisture and impurities from falling on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the recycled plastic recycling pretreatment equipment of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the recycled plastic recycling pretreatment equipment of the present invention;

[0019] Figure 3 It is a schematic diagram of the combined structure of the first guide plate, crushing roller, first DD motor, second guide plate, limit block and baffle of the recycled plastic recycling pretreatment equipment of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the separation components of the recycled plastic recycling pretreatment equipment of the present invention;

[0021] Figure 5 Schematic combination structure diagram of the separation roller, second DD motor, first connecting plate, extrusion block, first mounting frame and first filter screen of the recycling and pretreatment equipment for recycled plastics of the present invention;

[0022] Figure 6 is Figure 5 the enlarged view of area B in

[0023] Figure 7 Schematic combination structure diagram of the first filter screen, third connecting plate, sliding rod, second filter screen and connecting rod of the recycling and pretreatment equipment for recycled plastics of the present invention;

[0024] Figure 8 Schematic structure diagram of the drying assembly of the recycling and pretreatment equipment for recycled plastics of the present invention;

[0025] Figure 9 is Figure 8 the enlarged view of area C of

[0026] In the above drawings: 1 - housing, 2 - first guide plate, 2a - nozzle, 3 - crushing roller, 4 - first DD motor, 5 - second guide plate, 6 - limiting block, 7 - baffle, 101 - separation roller, 101a - scraping blade, 102 - second DD motor, 103 - first connecting plate, 104 - extrusion block, 105 - first mounting frame, 105a - chute, 106 - first filter screen, 107 - second connecting plate, 108 - spring limiting rod, 109 - third connecting plate, 1010 - sliding rod, 1011 - second filter screen, 1012 - connecting rod, 201 - second mounting frame, 202 - heating wire, 203 - fourth connecting plate, 204 - fan, 205 - first telescopic cloth, 206 - elastic cord, 207 - discharge plate, 208 - second telescopic cloth, 209 - limiting net. Detailed implementation manners

[0027] Although the present invention may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those of ordinary skill in the art will recognize that terms such as: above, below, upward, downward, etc. are used to describe the drawings and do not represent a limitation on the scope of the present invention as defined by the appended claims. Any numerical labels such as: first or second are merely illustrative and are not intended to limit the scope of the present invention in any way.

[0028] Embodiment 1

[0029] A recycling and pretreatment equipment for recycled plastics, as Figures 1-3As shown in the figure, it includes a housing 1, a crushing roller 3 and a first DD motor 4; two symmetrically arranged crushing rollers 3 are rotatably connected inside the housing 1; two symmetrically arranged first DD motors 4 are bolted to the housing 1; the output shaft of each first DD motor 4 is fixedly connected to the corresponding crushing roller 3;

[0030] It also includes a first guide plate 2, a second guide plate 5, a limit block 6 and a baffle 7; two symmetrically arranged first guides are penetrated through the housing 1, and the first guides are located directly above the crushing roller 3. A plurality of spray nozzles 2a are opened on each first guide plate 2; two symmetrically arranged second guide plates 5 are fixedly connected inside the housing 1; two symmetrically arranged limit blocks 6 are fixedly connected to each second guide plate 5; five equally spaced baffles 7 are rotatably connected to the left side inside the housing 1, and another five equally spaced baffles 7 are rotatably connected to the right side inside the housing 1.

[0031] The spray nozzles 2a are inclined away from the crushing area between the two crushing rollers 3, and the spray nozzles 2a have a reduced opening structure with a larger inner diameter and a smaller outer diameter, which is used to accumulate water mist so that the sprayed water mist has a certain impact force and is convenient for the water mist to enter the gap of the crushing roller 3.

[0032] During the crushing process of waste plastics, the plastics will soften due to friction heat generation, adhere to the crushing roller 3, affecting the crushing efficiency and effect of the crushing roller 3. At the same time, the plastics will release harmful gases when heated, and since the hot air will flow upward, the hot air will carry the harmful gases and disperse them to the outside, which will endanger the physical health of the surrounding workers. Moreover, when the plastics are crushed, static electricity is generated by friction, which will cause the crushed materials to agglomerate and make it difficult to transport and classify them subsequently.

[0033] Therefore, when recycling waste plastics, first, the staff installs this recycled plastic recycling pretreatment equipment at the position where it is needed. Then, the staff places the recycled plastics to be recycled into the inner housing 1 from the first guide plate 2. During this process, the first DD motor 4 is controlled to drive the crushing roller 3 to rotate for crushing work. At the same time, an external atomizing device is controlled to inject atomized water vapor into the nozzle 2a and spray it out through the nozzle 2a to form a water mist inclined towards the inside of the housing 1. At the same time, the sprayed water mist contacts the crushing roller 3 to reduce the heat generated by friction during the operation of the crushing roller 3, that is, to reduce the temperature of the crushing roller 3 through the water mist. At the same time, the inclined water mist faces the broken teeth of the crushing roller 3, that is, the water mist can better enter the gaps between the broken teeth of the crushing roller 3 to enhance the cooling effect of the water mist on the crushing roller 3, avoid overheating of the crushing roller 3 resulting in softening and adhesion of the recycled plastics on the crushing roller 3 during the crushing process, affecting the crushing efficiency and effect of the crushing roller 3, and avoid the generation of harmful gases during the crushing process of the recycled plastics. At the same time, part of the water mist sprayed out by the nozzle 2a enters the gap between the crushing roller 3 and the housing 1, that is, part of the water mist is blocked by the baffle 7 and slowly stores water. When the baffle 7 is full of water, under the action of the gravity of the water, the baffle 7 is driven to rotate, and the water in the baffle 7 flows out, that is, the flowing water impacts the crushing roller 3 to clean the plastic pieces on the crushing roller 3. It should be noted that during the process of crushing the recycled plastics, since the surface of the crushing roller 3 is wet and the recycled plastics will adhere to part of the water mist sprayed out by the nozzle 2a, that is, the crushed plastic pieces will also adhere to the water mist, and the plastic pieces adhering to the water mist will adhere to the crushing roller 3. That is, the water flowing out through the baffle 7 flushes the plastic pieces attached to the crushing roller 3 to avoid the attachment of plastic pieces to the crushing roller 3, which is beneficial to the rapid discharge of the recycled plastics after crushing and beneficial to the crushing effect of the crushing roller 3. And after the water stored on the baffle 7 flows out and impacts the crushing roller 3, the impacted water will drive the plastic pieces to move downward, making the plastic pieces contact the second guide plate 5. Then, under the limiting action of the limiting block 6, the water flow and the plastic pieces gather in the middle of the second guide plate 5, that is, by gathering the water flow, the scouring force of the water flow is increased to ensure that the water flow can drive the plastic pieces to move downward and avoid the plastic pieces from adhering to the second guide plate 5 and the limiting block 6, which further facilitates the discharge of the recycled plastics after crushing. In addition, the water mist sprayed out by the nozzle 2a makes the plastic pieces wet, which can avoid the problem of agglomeration of the crushed plastic pieces caused by static electricity generated by friction during the crushing process of the recycled plastics. At the same time, by setting the nozzle 2a to be inclined away from the crushing area between the two crushing rollers 3, it is convenient for the water to quickly fill up on the baffle 7.

[0034] Embodiment 2

[0035] Based on the above Embodiment 1, as Figures 4-7As shown, it further includes a separation component. The separation component includes a separation roller 101, a second DD motor 102, a first connecting plate 103, an extrusion block 104, a first mounting frame 105, a first filter screen 106, a second connecting plate 107, a spring limiting rod 108, and a pushing component; two symmetrically arranged separation rollers 101 are rotatably connected inside the housing 1. The separation rollers 101 are located below the second material guiding plate 5. Two symmetrically arranged scraping blades 101a are provided on each separation roller 101; two symmetrically arranged second DD motors 102 are bolted to the housing 1; the output shaft of each second DD motor 102 is fixedly connected to the corresponding separation roller 101; two symmetrically arranged first connecting plates 103 are fixedly connected to each separation roller 101; three annularly arranged extrusion blocks 104 are fixedly connected to each first connecting plate 103; a first mounting frame 105 is fixedly connected to the housing 1. Four rectangularly distributed sliding grooves 105a are formed in the first mounting frame 105; a spring limiting rod 108 is fixedly connected to each sliding groove 105a; a second connecting plate 107 is connected to each spring limiting rod 108; all the second connecting plates 107 are fixedly connected to a first filter screen 106 together; a pushing component is connected to the first filter screen 106.

[0036] The pushing component includes a third connecting plate 109, a sliding rod 1010, a second filter screen 1011, and a connecting rod 1012; four rectangularly distributed third connecting plates 109 are fixedly connected to the first filter screen 106; all the third connecting plates 109 on the same side are slidably connected to a sliding rod 1010 together; a second filter screen 1011 is fixedly connected to each sliding rod 1010; all the second filter screens 1011 are fixedly connected to a connecting rod 1012 together; the connecting rod 1012 is fixedly connected to the housing 1.

[0037] The scraping blades 101a are arranged in a spiral structure, and the spiral directions of the two scraping blades 101a on the same separation roller 101 are opposite, which is used to disperse the plastic sheets.

[0038] The extrusion block 104 and the first filter screen 106 are arranged in an arc structure, which is used to separate the flowing plastic sheets and avoid excessive accumulation of plastic sheets together.

[0039] When the plastic sheet drops downward from the second guide plate 5, there is moisture on the plastic sheet, and the plastic sheets adhere to each other. Therefore, when the plastic sheet drops downward from the second guide plate 5, the plastic sheet will contact the separating roller 101. During this process, the second DD motor 102 is controlled to drive the separating roller 101 to rotate, and the separating roller 101 drives the wiper 101a to rotate. Since the spiral directions of the two wipers 101a on the separating roller 101 are opposite, when the plastic sheet drops downward and contacts the separating roller 101, the plastic sheet is dialed to the front and rear sides by the cooperation of the separating roller 101 and the wiper 101a and drops downward onto the first filter screen 106, so that the plastic sheets adhered to each other are dispersed, avoiding affecting the plastic sheet conveying and subsequent work.

[0040] At the same time, when the separating roller 101 rotates, it synchronously drives the first connecting plate 103 to rotate, and the first connecting plate 103 drives the extrusion block 104 to rotate. The extrusion block 104 will indirectly extrude the first filter screen 106 downward, causing the first filter screen 106 to drive the second connecting plate 107 to slide on the chute 105a. At the same time, the second connecting plate 107 slides on the rod body of the spring limiting rod 108 and adaptively stretches and compresses the spring on the spring limiting rod 108. When the extrusion block 104 passes by the first filter screen 106, the spring on the spring limiting rod 108 drives the second connecting plate 107 and the first filter screen 106 to reset. Thus, by driving the extrusion block 104 to rotate through the first connecting plate 103, the first filter screen 106 continuously reciprocates up and down and vibrates, and through the vibration effect on the plastic sheet that has dropped onto the first filter screen 106 and has been dispersed, part of the moisture and impurities on the plastic sheet are shaken off and drop downward through the first filter screen 106, facilitating the plastic sheet conveying and reducing the workload of subsequent plastic sheet impurity cleaning.

[0041] Meanwhile, a second filter screen 1011 is additionally provided on the first filter screen 106. When the plastic sheets dispersed by the separation roller 101 fall downward, the plastic sheets will fall onto the second filter screen 1011. Then, when the first connecting plate 103 drives the extrusion block 104 to rotate, causing the first filter screen 106 to continuously move up and down reciprocally, the third connecting plate 109 moves up and down reciprocally following the first filter screen 106. When the third connecting plate 109 moves downward, the sliding rods 1010 will move toward each other on the third connecting plate 109. Here, it should be noted that the second filter screen 1011 is fixed by the connecting rod 1012, that is, the second filter screen 1011 will not move following the first filter screen 106. When the sliding rods 1010 move toward each other on the third connecting plate 109, the second filter screen 1011 deforms adaptively, and the bending degree of the second filter screen 1011 increases. At this time, the plastic sheets falling on the second filter screen 1011 will slide onto the first filter screen 106. And when the sliding rods 1010 move toward each other on the third connecting plate 109 and the bending degree of the second filter screen 1011 increases, at this time, the plastic sheets dispersed by the separation roller 101 will fall onto the first filter screen 106. When the third connecting plate 109 moves upward following the first filter screen 106, the sliding rods 1010 move away from each other on the third connecting plate 109, so that the second filter screen 1011 is restored. At this time, the second filter screen 1011 will scrape the plastic sheets on the first filter screen 106, causing the plastic sheets on the first filter screen 106 to move to the left and right sides, avoiding the situation that the plastic sheets adhered with water are difficult to move, resulting in the accumulation of plastic sheets on the first filter screen 106 and affecting the transfer of the recycled plastics after crushing.

[0042] Embodiment 3

[0043] On the basis of the above Embodiment 2, as Figures 8-9 shown, it further includes a drying assembly. The drying assembly includes a second mounting frame 201, heating wires 202, a fourth connecting plate 203, a fan 204, a first stretchable cloth 205, elastic ropes 206, and a discharging component; two symmetrically arranged second mounting frames 201 are fixedly connected to the first mounting frame 105; four equally spaced heating wires 202 are fixedly connected to each second mounting frame 201; four fourth connecting plates 203 distributed in a rectangular shape are rotatably connected to the first mounting frame 105 through torsion springs, and the fourth connecting plates 203 are located below the corresponding heating wires 202; a fan 204 is fixedly connected to each fourth connecting plate 203; two fourth connecting plates 203 on the same side are commonly connected to a first stretchable cloth 205; three equally spaced elastic ropes 206 are fixedly connected to each first stretchable cloth 205; all the elastic ropes 206 are commonly fixedly connected to the first filter screen 106; a discharging component is connected to the first mounting frame 105.

[0044] The discharging component includes a discharging plate 207, a second telescopic cloth 208 and a limiting net 209; the discharging plate 207 is fixedly connected to the first mounting frame 105; two symmetrically arranged second telescopic cloths 208 are fixedly connected to the discharging plate 207; all the second telescopic cloths 208 are jointly fixedly connected to the first filter screen 106; ten equally spaced limiting nets 209 are fixedly connected to the left side of the first filter screen 106, and another ten equally spaced limiting nets 209 are fixedly connected to the right side of the first filter screen 106, and the upper part of the limiting net 209 protrudes from the first filter screen 106.

[0045] All the fans 204 are arranged in a V shape to prevent hot air from escaping.

[0046] A temperature monitor is built into the first mounting frame 105 to control and adjust the heating wire 202 to prevent the temperature inside the first mounting frame 105 from being too high, causing the plastic sheet to melt and adhere to the first filter screen 106.

[0047] During the process that the first connecting plate 103 drives the extrusion block 104 to rotate, making the first filter screen 106 continuously move up and down reciprocally, the first filter screen 106 pulls the elastic cord 206 to move up and down, the elastic cord 206 pulls the first telescopic cloth 205 to move up and down, and the first telescopic cloth 205 pulls the fourth connecting plate 203 to move accordingly, forcing the fourth connecting plate 203 to rotate around the rotating shaft connected to the first mounting frame 105, and the torsion spring between the fourth connecting plate 203 and the first mounting frame 105 is reciprocally compressed and restored. The fourth connecting plate 203 drives the fan 204 to move accordingly, and under the action of the torsion spring between the fourth connecting plate 203 and the first mounting frame 105, the two fans 204 on the same side continuously switch between an inverted V shape and a V shape, controlling the operation of the fan 204. At the same time, the heating wire 202 is controlled to operate to heat the air, so that the fan 204 continuously blows out hot air, drying the residual water stains on the plastic sheet through the hot air. At the same time, during the process that the two fans 204 on the same side continuously switch between an inverted V shape and a V shape, the air flow blown out by the fan 204 will drive the plastic sheet to move back and forth on the first filter screen 106. During the process that the plastic sheet moves on the first filter screen 106, the plastic sheet is limited by the limiting net 209, forcing some plastic sheets to stay in their original positions, preventing too many plastic sheets from accumulating together and affecting the drying effect. That is, by the way of limiting with the limiting net 209, the plastic sheet is spread out, accelerating the drying speed of the plastic sheet. And because the four fans 204 are arranged in a V shape, the hot air sprayed accumulates towards the inside, preventing the hot air from escaping. At the same time, the impurities and moisture separated by the first filter screen 106 are discharged through the discharge port of the discharging plate 207 under the limitation of the discharging plate 207 and the second telescopic cloth 208. And before the recycled plastic is crushed, a waste bin is placed below the discharge port of the discharging plate 207 to collect the separated impurities and moisture, preventing the separated moisture and impurities from falling to the ground.

[0048] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to cover all modifications and equivalent structures and functions.

Claims

1. A recycled plastic recycling pretreatment device, comprising a housing (1), a crushing roller (3) and a first DD motor (4); two crushing rollers (3) are rotatably connected inside the housing (1); a plurality of first DD motors (4) are fixedly connected to the housing (1); the output shaft of each first DD motor (4) is fixedly connected to the corresponding crushing roller (3); characterized in that: It further includes a first guide plate (2), a second guide plate (5), a limit block (6) and a baffle (7); a plurality of first guide plates (2) are penetrated through the outer shell (1), the first guide plates (2) are located directly above the crushing rollers (3), and a plurality of spray nozzles (2a) are formed on each first guide plate (2); a plurality of second guide plates (5) are fixedly connected inside the outer shell (1); a plurality of limit blocks (6) are fixedly connected to each second guide plate (5); a plurality of baffles (7) are rotatably connected to the left side inside the outer shell (1), and a plurality of other baffles (7) are rotatably connected to the right side inside the outer shell (1); The spray nozzles (2a) are inclined away from the crushing area between the two crushing rollers (3), and the spray nozzles (2a) are of a reduced-opening structure with a larger inner diameter and a smaller outer diameter; It further includes a separation assembly, and the separation assembly includes a separation roller (101), a second DD motor (102), a first connecting plate (103), an extrusion block (104), a first mounting frame (105), a first filter screen (106), a second connecting plate (107), a spring limit rod (108) and a pushing component; a plurality of separation rollers (101) are rotatably connected inside the outer shell (1), the separation rollers (101) are located below the second guide plates (5), and a plurality of scraping blades (101a) are arranged on each separation roller (101); a plurality of second DD motors (102) are fixedly connected to the outer shell (1); the output shaft of each second DD motor (102) is fixedly connected to the corresponding separation roller (101); a plurality of first connecting plates (103) are fixedly connected to each separation roller (101); a plurality of extrusion blocks (104) are fixedly connected to each first connecting plate (103); a first mounting frame (105) is fixedly connected to the outer shell (1), and a plurality of sliding grooves (105a) are formed in the first mounting frame (105); a spring limit rod (108) is fixedly connected to each sliding groove (105a); a second connecting plate (107) is connected to each spring limit rod (108); all the second connecting plates (107) are fixedly connected to a first filter screen (106) together; a pushing component is connected to the first filter screen (106); The pushing component includes a third connecting plate (109), a sliding rod (1010), a second filter screen (1011) and a connecting rod (1012); a plurality of third connecting plates (109) are fixedly connected to the first filter screen (106); all the third connecting plates (109) on the same side are slidably connected to a sliding rod (1010) together; a second filter screen (1011) is fixedly connected to each sliding rod (1010); all the second filter screens (1011) are fixedly connected to a connecting rod (1012) together; the connecting rod (1012) is fixedly connected to the outer shell (1).

2. The recycling and pre-treatment equipment for recycled plastics according to claim 1, characterized in that: The scraping blades (101a) are arranged in a spiral structure, and the spiral directions of the two scraping blades (101a) on the same separation roller (101) are opposite.

3. A pre-treatment device for recycled plastic recycling according to claim 2, characterized in that: The first filter screen (106) is arranged in an arc structure.

4. The a regenerated plastic recycling pretreatment device according to claim 3, characterized in that: It further includes a drying component, and the drying component includes a second mounting frame (201), heating wires (202), a fourth connecting plate (203), a fan (204), a first telescopic cloth (205), elastic ropes (206) and a discharging component; a plurality of second mounting frames (201) are fixedly connected to the first mounting frame (105); a plurality of heating wires (202) are fixedly connected to each second mounting frame (201); a plurality of fourth connecting plates (203) are rotatably connected to the first mounting frame (105) through torsion springs, and the fourth connecting plates (203) are located below the corresponding heating wires (202); a fan (204) is fixedly connected to each fourth connecting plate (203); a first telescopic cloth (205) is commonly connected to a plurality of fourth connecting plates (203) on the same side; a plurality of elastic ropes (206) are fixedly connected to each first telescopic cloth (205); all the elastic ropes (206) are commonly fixedly connected to the first filter screen (106); a discharging component is connected to the first mounting frame (105).

5. A recycled plastic recycling pretreatment device according to claim 4, characterized in that: The discharging component includes a discharging plate (207), a second telescopic cloth (208) and a limiting net (209); a discharging plate (207) is fixedly connected to the first mounting frame (105); a plurality of second telescopic cloths (208) are fixedly connected to the discharging plate (207); all the second telescopic cloths (208) are commonly fixedly connected to the first filter screen (106); a plurality of limiting nets (209) are fixedly connected to the left side of the first filter screen (106), and a plurality of other limiting nets (209) are fixedly connected to the right side of the first filter screen (106), and the upper part of the limiting net (209) protrudes from the first filter screen (106).

6. The pre-treatment equipment for recycling and reclaiming plastic according to claim 4, characterized in that: All the fans (204) are arranged in a V-shape.

7. A regenerated plastic recycling pretreatment device according to claim 4, characterized in that: A temperature monitor is built in the first mounting frame (105).

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