Recycled plastic recycling pretreatment equipment

Abstract

The invention relates to the field of recycled plastic recovery, in particular to recycled plastic recovery pretreatment equipment which comprises a shell, a crushing roller and a first DD motor. Two crushing rollers are rotationally connected into the shell; the shell is fixedly connected with a plurality of first DD motors; and an output shaft of each first DD motor is fixedly connected with the corresponding crushing roller. Heat generated by friction when the crushing roller works is reduced through water mist sprayed out of the nozzles, the situation that the crushing roller is too hot, so that regenerated plastic is softened and adheres to the crushing roller in the crushing process, and the crushing efficiency and effect of the crushing roller are affected is avoided, the water mist is blocked through the baffle, water is stored, and after the baffle is full of water, under the gravity effect of the water, the regenerated plastic is crushed. The baffle is driven to rotate, so that water in the baffle flows out, namely, the flowing-out water impacts the crushing rollers to clean plastic sheets on the crushing rollers, and meanwhile, the nozzles are obliquely arranged away from the crushing area between the two crushing rollers, so that the baffle is rapidly filled with water.

Description

Technical Field

[0001] The invention relates to the field of recycled plastic recycling, and in particular to recycled plastic recycling pretreatment equipment. 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 the recycling of waste plastics. In the process of recycling waste plastics, the waste plastics must first be crushed, and then screened to separate the crushed plastic pieces from the remaining impurities. The remaining impurities refer to the non-plastic materials carried in the waste plastics, such as crushed stone and gravel. However, during the continuous crushing operation, the plastic will soften due to frictional heat and adhere to the crushing roller, affecting the crushing efficiency and effect of the crushing roller. In addition, the plastic will release harmful gases when heated, and since the hot air will flow upward, the hot air will carry the harmful gases to the outside world, which will endanger the health of the surrounding workers. When the plastic is crushed, friction generates static electricity, which leads to the agglomeration of the crushed materials, making it difficult to transport and carry out subsequent work. Summary of the invention

[0003] In order to overcome the disadvantage that in the waste plastic recycling process, the plastic will soften due to frictional heat and adhere to the crushing roller, thus affecting the crushing efficiency and effect of the crushing roller, the present invention provides a recycled plastic recycling pretreatment device.

[0004] Technical solution: A recycled plastic recycling pretreatment equipment, including a shell, a crushing roller and a first DD motor; two crushing rollers are rotatably connected inside the shell; a number of first DD motors are fixedly connected to the shell; the output shaft of each first DD motor is fixedly connected to the corresponding crushing roller; it also includes a first guide plate, a second guide plate, a limit block and a baffle; a number of first guides are passed through the shell, the first guide is located directly above the crushing roller, and each first guide plate is provided with a number of nozzles; a number of second guide plates are fixedly connected inside the shell; a number of limit blocks are fixedly connected to each second guide plate; a number of baffles are rotatably connected to the left side of the shell, and another number of baffles are rotatably connected to the right side of the shell.

[0005] It is further explained that the nozzle is inclined away from the crushing area between the two crushing rollers, and the nozzle has a narrowing structure with a larger inner side and a smaller outer side.

[0006] Further description, it also 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; a plurality of separation rollers are rotatably connected to the inside of the outer shell, and the separation rollers are located below the second guide plate, and each separation roller is provided with a plurality of scrapers; a plurality of second DD motors are fixedly connected to the outer shell; the output shaft of each second DD motor is fixedly connected to the corresponding separation roller; a plurality of first connecting plates are fixedly connected to each separation roller; a plurality of extrusion blocks are fixedly connected to each first connecting plate; a first mounting frame is fixedly connected to the outer shell, and a plurality of slide grooves are provided on the first mounting frame; a spring limiting rod is fixedly connected in each slide groove; each spring limiting rod is connected to a second connecting plate; all the second connecting plates are fixedly connected to the first filter screen; and the first filter screen is connected to a pushing component.

[0007] Further description, the pushing component includes a third connecting plate, a sliding rod, a second filter screen and a connecting rod; a plurality of third connecting plates are fixedly connected to the first filter screen; all the third connecting plate sliding rods are located on the same side; each sliding rod is fixedly connected to the second filter screen; all the second filter screens are fixedly connected to the connecting rod; the connecting rod is fixedly connected to the outer casing.

[0008] It is further explained that the scraper blades are arranged in a spiral structure, and the spiral directions of the two scraper blades on the same separation roller are opposite.

[0009] The extrusion block further illustrates that the first filter screen is arranged in an arc-shaped structure.

[0010] Further description, it also 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 rope and a discharge component; a plurality of second mounting frames are fixedly connected to the first mounting frame; a plurality of heating wires are fixedly connected to each second mounting frame; a plurality of fourth connecting plates are rotatably connected to the first mounting frame through a torsion spring, and the fourth connecting plates are located below the corresponding heating wires; a fan is fixedly connected to each fourth connecting plate; a plurality of fourth connecting plates located on the same side are commonly connected to the first telescopic cloth; a plurality of elastic ropes are fixedly connected to each first telescopic cloth; all the elastic ropes are commonly fixedly connected to the first filter; and a discharge component is connected to the first mounting frame.

[0011] To further explain, the discharge component includes a discharge plate, a second telescopic cloth and a limiting net; the discharge plate is fixedly connected to the first mounting frame; a plurality of second telescopic cloths are fixedly connected to the discharge plate; all the second telescopic cloths are fixedly connected to the first filter screen; a plurality of limiting nets are fixedly connected to the left side of the first filter screen, and another plurality of 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] To further illustrate, all fans are arranged in a figure eight 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 It is a schematic diagram of the combined structure of the separation roller, the second DD motor, the first connecting plate, the extrusion block, the first installation frame and the first filter screen of the recycled plastic recycling pretreatment equipment of the present invention;

[0022] Figure 6 for Figure 5 A magnified view of area B in FIG.

[0023] Figure 7 This is a schematic diagram of the combined structure of the first filter screen, the third connecting plate, the sliding rod, the second filter screen and the connecting rod of the recycled plastic recycling pretreatment equipment of the present invention;

[0024] Figure 8 This is a schematic structural diagram of a drying component of the recycled plastic recycling pretreatment equipment of the present invention;

[0025] Fig. 9 for Figure 8 Magnified view of area C.

[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-scraper, 102-second DD motor, 103-first connecting plate, 104-extrusion block, 105-first installation frame, 105a-slide, 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 installation frame, 202-heating wire, 203-fourth connecting plate, 204-fan, 205-first telescopic cloth, 206-elastic rope, 207-discharge plate, 208-second telescopic cloth, 209-limiting net. DETAILED DESCRIPTION

[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 limitations on the scope of the present invention as defined by the appended claims. Any numerical designations such as first or second are merely exemplary and are not intended to limit the scope of the present invention in any way.

[0028] Example 1

[0029] A recycled plastic recycling pretreatment device, such as Figure 1-3As shown, it comprises 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 material guide plate 2, a second material guide plate 5, a limit block 6 and a baffle 7; two symmetrically arranged first material guides are passed through the outer shell 1, and the first material guides are located directly above the crushing roller 3, and each first material guide plate 2 is provided with a plurality of nozzles 2a; two symmetrically arranged second material guide plates 5 are fixedly connected inside the outer shell 1; two symmetrically arranged limit blocks 6 are fixedly connected to each second material guide plate 5; five equidistantly distributed baffles 7 are rotatably connected to the left side of the inner shell 1, and another five equidistantly distributed baffles 7 are rotatably connected to the right side of the inner shell 1.

[0031] The nozzle 2a is inclined away from the crushing area between the two crushing rollers 3, and has a narrowing structure with a larger inner portion and a smaller outer portion, for accumulating water mist so that the sprayed water mist has a certain impact force, which facilitates the water mist to enter the gap of the crushing rollers 3.

[0032] During the waste plastic crushing process, the plastic will soften due to frictional heat and adhere to the crushing roller 3, affecting the crushing efficiency and effect of the crushing roller 3. At the same time, the plastic will release harmful gases when heated, and since the hot air will flow upward, the hot air will carry the harmful gases to the outside world, which will endanger the health of the surrounding workers. In addition, when the plastic is crushed, friction will generate static electricity, which will cause the crushed materials to agglomerate, making it difficult to transport and subsequently classify.

[0033] Therefore, when recycling waste plastics, the staff first installs the recycled plastic recycling pretreatment equipment at the location where it needs to be used, and then the staff first places the recycled plastic to be recycled from the first guide plate 2 to the inside of the shell 1. During this process, the first DD motor 4 is controlled to drive the crushing roller 3 to rotate for crushing, and at the same time, the external atomizing device is controlled to inject atomized water vapor into the nozzle 2a, and spray it through the nozzle 2a to form a water mist inclined toward the inside of the shell 1. At the same time, the sprayed water mist contacts the crushing roller 3 to reduce the heat generated by friction when the crushing roller 3 is working, that is, the temperature of the crushing roller 3 is reduced by the water mist. At the same time, the inclined water mist is opposite to the broken teeth of the crushing roller 3, that is, the water mist can better enter the gap of the broken teeth of the crushing roller 3, so as to enhance the cooling effect of the water mist on the crushing roller 3, avoid overheating of the crushing roller 3, which causes the recycled plastic to soften and adhere to 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 plastic. At the same time, part of the water mist sprayed from the nozzle 2a enters the gap between the crushing roller 3 and the shell 1, that is, part of the water mist is blocked by the baffle 7 and slowly accumulates water. When the baffle 7 is full of water, the baffle 7 is driven to rotate under the action of the gravity of the water, so that the water in the baffle 7 flows out, that is, the flow The water discharged from the crushing roller 3 impacts the crushing roller 3 to clean the plastic flakes on the crushing roller 3. It should be noted that in the process of crushing the recycled plastic, since the surface of the crushing roller 3 is wet and the recycled plastic will adhere to the water mist sprayed from the part of the nozzle 2a, that is, the crushed plastic flakes will also adhere to the water mist, and the plastic flakes adhered to the water mist will adhere to the crushing roller 3, that is, the water flowing out through the baffle 7 flushes the plastic flakes attached to the crushing roller 3, avoiding the plastic flakes attached to the crushing roller 3, which is beneficial to the rapid discharge of the recycled plastic after crushing, and is beneficial to the crushing effect of the crushing roller 3. After the water stored on the baffle 7 flows out to impact the crushing roller 3, the water after the impact will drive the plastic flakes to move downward, so that the plastic flakes are connected to the crushing roller 3. The second guide plate 5 is touched, and then the water flow and the plastic sheets are gathered in the middle of the second guide plate 5 under the limiting action of the limiting block 6, that is, the flushing force of the water flow is increased by gathering the water flow, so as to ensure that the water flow can drive the plastic sheets to move downward, and avoid the plastic sheets from adhering to the second guide plate 5 and the limiting block 6, which is further conducive to the discharge of the recycled plastic after crushing. In addition, the water mist sprayed from the nozzle 2a moistens the plastic sheets, which can avoid static electricity generated by friction during the crushing of the recycled plastic, resulting in the problem of agglomeration of the crushed plastic sheets. At the same time, by tilting the nozzle 2a away from the crushing area between the two crushing rollers 3, it is convenient for water to quickly fill up on the baffle 7.

[0034] Example 2

[0035] On the basis of the above-mentioned embodiment 1, Figure 4-7As shown, a separation assembly is also included, which 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; the housing 1 is internally rotatably connected to two symmetrically arranged separation rollers 101, the separation rollers 101 are located below the second guide plate 5, and each separation roller 101 is provided with two symmetrically arranged scrapers 101a; the housing 1 is bolted with two symmetrically arranged second DD motors 102; the output shaft of each second DD motor 102 is connected to the corresponding The separation roller 101 is fixedly connected; each separation roller 101 is fixedly connected to two symmetrically arranged first connecting plates 103; each first connecting plate 103 is fixedly connected to three annular array extrusion blocks 104; the outer shell 1 is fixedly connected to a first mounting frame 105, and the first mounting frame 105 is provided with four rectangularly distributed slide grooves 105a; each slide groove 105a is fixedly connected to a spring limiting rod 108; each spring limiting rod 108 is connected to a second connecting plate 107; all the second connecting plates 107 are commonly fixedly connected to a first filter screen 106; the first filter screen 106 is connected to a pushing component.

[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 third connecting plates 109 distributed in a rectangular shape are fixedly connected to the first filter screen 106; all third connecting plates 109 located on the same side are slidably connected to the sliding rod 1010; each sliding rod 1010 is fixedly connected to the second filter screen 1011; all second filter screens 1011 are fixedly connected to the connecting rod 1012; the connecting rod 1012 is fixedly connected to the outer shell 1.

[0037] The scraper blade 101 a is arranged in a spiral structure, and the spiral directions of the two scrapers 101 a on the same separation roller 101 are opposite to each other, and are used to disperse the plastic flakes.

[0038] The first filter screen 106 of the extrusion block 104 is arranged in an arc-shaped structure, and is used to separate the flowing plastic sheets to prevent excessive plastic sheets from piling up.

[0039] When the plastic sheet falls downward from the second guide plate 5, there is moisture on the plastic sheet and the plastic sheets are adhered to each other. Therefore, when the plastic sheet falls downward from the second guide plate 5, the plastic sheet will contact the separation roller 101. During this process, the second DD motor 102 is controlled to drive the separation roller 101 to rotate, and the separation roller 101 drives the scraper 101a to rotate. Since the two scrapers 101a on the separation roller 101 have opposite spiral directions, when the plastic sheet falls downward and contacts the separation roller 101, the separation roller 101 and the scraper 101a cooperate to push the plastic sheet to the front and back sides, and fall downward onto the first filter screen 106, so that the plastic sheets that are adhered to each other are dispersed to avoid affecting the plastic sheet transportation and subsequent work.

[0040] At the same time, when the separation 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 squeeze the first filter screen 106 downward, so that the first filter screen 106 drives the second connecting plate 107 to slide on the slide groove 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 through 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, thereby driving the extrusion block 104 to rotate through the first connecting plate 103, so that the first filter screen 106 continues to reciprocate up and down and generates shaking. The plastic sheets that fall onto the first filter screen 106 and are dispersed are shaken off through the shaking effect, and fall downward through the first filter screen 106, which is convenient for plastic sheet transportation and reduces the workload of subsequent plastic sheet impurity cleaning.

[0041] At the same time, a second filter screen 1011 is added to 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, and then the first connecting plate 103 drives the extrusion block 104 to rotate, so that when the first filter screen 106 continues to reciprocate up and down, the third connecting plate 109 follows the first filter screen 106 to reciprocate up and down. When the third connecting plate 109 moves downward, the sliding rod 1010 will move toward each other on the third connecting plate 109. It is explained here that the second filter screen 1011 is fixed by the connecting rod 1012, that is, the second filter screen 1011 will not move with the first filter screen 106, and when the sliding rod 1010 moves toward each other on the third connecting plate 109, the second filter screen 1011 is adaptively deformed and the second filter screen 1011 is bent. The degree of bending of the second filter screen 1011 increases. At this time, the plastic sheets dropped on the second filter screen 1011 will slide onto the first filter screen 106, and the slide bar 1010 moves toward each other on the third connecting plate 109. During the process of increasing the bending degree of the second filter screen 1011, 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 with the first filter screen 106, the slide bar 1010 moves away from each other on the third connecting plate 109, thereby restoring the second filter screen 1011. At this time, the second filter screen 1011 will scrape the plastic sheets on the first filter screen 106, so that the plastic sheets on the first filter screen 106 move to the left and right sides, avoiding the difficulty in moving the plastic sheets adhered to water, causing the plastic sheets to gather on the first filter screen 106, affecting the transfer of the recycled plastic after crushing.

[0042] Example 3

[0043] Based on the above embodiment 2, Figure 8-9 As shown, a drying component is also included, which includes a second installation frame 201, a heating wire 202, a fourth connecting plate 203, a fan 204, a first telescopic cloth 205, an elastic rope 206 and a discharge component; two symmetrically arranged second installation frames 201 are fixedly connected to the first installation frame 105; four equidistantly distributed heating wires 202 are fixedly connected to each second installation frame 201; four rectangularly distributed fourth connecting plates 203 are rotatably connected to the first installation frame 105 through a torsion spring, 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 located on the same side are commonly connected to the first telescopic cloth 205; three equidistantly distributed 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 106; and a discharge component is connected to the first installation frame 105.

[0044] The discharge components include a discharge plate 207, a second telescopic cloth 208 and a limiting net 209; the discharge plate 207 is fixedly connected to the first mounting frame 105; two symmetrically arranged second telescopic cloths 208 are fixedly connected to the discharge plate 207; all the second telescopic cloths 208 are fixedly connected to the first filter screen 106; ten equidistantly distributed limiting nets 209 are fixedly connected to the left side of the first filter screen 106, and another ten equidistantly distributed 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 fans 204 are arranged in an eight-shaped configuration to prevent heat from escaping.

[0046] The first installation frame 105 has a built-in temperature monitor for controlling and adjusting the heating wire 202 to prevent the temperature in the first installation frame 105 from being too high, causing the plastic sheet to melt and adhere to the first filter screen 106 .

[0047] When the first connecting plate 103 drives the extruding block 104 to rotate, so that the first filter screen 106 continuously reciprocates up and down, the first filter screen 106 pulls the elastic rope 206 to move up and down, and the elastic rope 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 along, forcing the fourth connecting plate 203 to rotate with the rotating shaft connected to the first installation frame 105 as the rotation center, and the torsion spring between the fourth connecting plate 203 and the first installation frame 105 is reciprocatingly compressed and restored, and the fourth connecting plate 203 drives the fan 204 to move along, and under the action of the torsion spring between the fourth connecting plate 203 and the first installation frame 105, the two fans 204 on the same side are continuously switched between the inverted V shape and the V shape, controlling the fan 204 to run, and at the same time controlling the heating wire 202 to run to heat the air, so that the fan 204 continuously blows out hot air, and the hot air dries the water stains remaining on the plastic sheet, and at the same time As the two fans 204 on one side continuously switch between the inverted V shape and the V shape, the airflow blown by the fan 204 will drive the plastic sheet to move back and forth on the first filter 106. During the movement of the plastic sheet on the first filter 106, the plastic sheet is limited by the limiting net 209, forcing some of the plastic sheets to stay in the original position to avoid too many plastic sheets from accumulating together and affecting the drying effect. That is, the plastic sheets are spread out by the limiting net 209 to speed up the drying speed of the plastic sheets. Since the four fans 204 are arranged in an eight-shaped shape, the ejected hot air accumulates inward to avoid hot air overflow. At the same time, the impurities and moisture screened by the first filter 106 are discharged through the discharge port of the discharge plate 207 under the limitation of the discharge plate 207 and the second telescopic cloth 208. Before the recycled plastic is crushed, the waste barrel placed below the discharge port of the discharge plate 207 collects the screened impurities and moisture to avoid the screened moisture and impurities falling on the ground.

[0048] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such 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); the characteristics are: The invention also comprises a first material guide plate (2), a second material guide plate (5), a stop block (6) and a baffle plate (7); a plurality of first material guide plates are provided on the outer shell (1), the first material guide plates are located directly above the crushing roller (3), and each first material guide plate (2) is provided with a plurality of nozzles (2a); a plurality of second material guide plates (5) are fixedly connected to the inner part of the outer shell (1); a plurality of stop blocks (6) are fixedly connected to each second material guide plate (5); a plurality of baffle plates (7) are rotatably connected to the inner left side of the outer shell (1), and another plurality of baffle plates (7) are rotatably connected to the inner right side of the outer shell (1).

2. A recycled plastic recycling pretreatment device according to claim 1, characterized in that: The nozzle (2a) is arranged to be inclined away from the crushing area between the two crushing rollers (3), and the nozzle (2a) has a narrowing structure with a larger interior and a smaller exterior.

3. A recycled plastic recycling pretreatment device according to claim 2, characterized in that: The invention also comprises a separation component, which comprises 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 to the inside of the housing (1), the separation rollers (101) are located below the second material guide plate (5), and each separation roller (101) is provided with a plurality of scrapers (101a); a plurality of second DD motors (102) are fixedly connected to the housing (1); the output shaft of each second DD motor (102) is connected to the corresponding The separation rollers (101) are fixedly connected; each separation roller (101) is fixedly connected to a plurality of first connection plates (103); each first connection plate (103) is fixedly connected to a plurality of extrusion blocks (104); a first installation frame (105) is fixedly connected to the outer shell (1), and a plurality of slide grooves (105a) are provided on the first installation frame (105); a spring limiting rod (108) is fixedly connected in each slide groove (105a); each spring limiting rod (108) is connected to a second connection plate (107); all the second connection plates (107) are fixedly connected to a first filter screen (106); and a pushing component is connected to the first filter screen (106).

4. A recycled plastic recycling pretreatment device according to claim 3, characterized in that: The pushing component comprises 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) located on the same side are connected to the sliding rod (1010); each sliding rod (1010) is fixedly connected to the second filter screen (1011); all the second filter screens (1011) are fixedly connected to the connecting rod (1012); and the connecting rod (1012) is fixedly connected to the housing (1).

5. A recycled plastic recycling pretreatment device according to claim 3, characterized in that: The scraper blades (101a) are arranged in a spiral structure, and the spiral directions of the two scraper blades (101a) on the same separation roller (101) are opposite.

6. A recycled plastic recycling pretreatment device according to any one of claims 3 to 5, characterized in that: The first filter screen (106) is arranged in an arc-shaped structure.

7. A recycled plastic recycling pretreatment device according to claim 6, characterized in that: The drying machine also includes a drying assembly, which includes a second installation frame (201), a heating wire (202), a fourth connecting plate (203), a fan (204), a first telescopic cloth (205), an elastic rope (206) and a material discharge component; a plurality of second installation frames (201) are fixedly connected to the first installation frame (105); a plurality of heating wires (202) are fixedly connected to each second installation frame (201); a plurality of fourth connecting plates are rotatably connected to the first installation frame (105) via a torsion spring. (203), the fourth connecting plate (203) is located below the corresponding heating wire (202); each fourth connecting plate (203) is fixedly connected to a fan (204); a plurality of fourth connecting plates (203) located on the same side are commonly connected to a first telescopic cloth (205); each first telescopic cloth (205) is fixedly connected to a plurality of elastic ropes (206); all the elastic ropes (206) are commonly fixedly connected to the first filter screen (106); and a discharge component is connected to the first installation frame (105).

8. A recycled plastic recycling pretreatment device according to claim 7, characterized in that: The material discharging component comprises a material discharging plate (207), a second telescopic cloth (208) and a limiting net (209); the material discharging plate (207) is fixedly connected to the first installation frame (105); a plurality of second telescopic cloths (208) are fixedly connected to the material discharging plate (207); all the second telescopic cloths (208) are 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 another plurality of 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).

9. A recycled plastic recycling pretreatment device according to claim 7, characterized in that: All fans (204) are arranged in an eight-shaped configuration.

10. A recycled plastic recycling pretreatment device according to claim 7, characterized in that: The first installation frame (105) has a built-in temperature monitor.

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