Crushing treatment device for plastic recovery

Abstract

The utility model relates to a smashing treatment device for plastic recycling. The smashing treatment device comprises a smashing assembly used for smashing plastic, a conveying assembly installed at the discharging end of the smashing assembly and a heating recycling assembly installed at the output end of the conveying assembly. The crushing assembly comprises a crushing rack, a feeding bin installed on the crushing rack, a discharging bin installed on the crushing rack, a crushing piece installed in the feeding bin and used for crushing plastic, and a filtering piece installed in the discharging bin, wherein one end of the discharging bin communicates with the feeding bin, and the other end of the discharging bin faces the input end of the conveying assembly. Plastic raw materials with different sizes and shapes can be crushed into fragments with relatively uniform sizes through a crushing part and a filtering part in the crushing assembly; and the filtering piece can screen out plastic fragments meeting a certain size requirement, so that the plastic fragments entering a subsequent recycling process are uniform in size, and subsequent heating recycling treatment is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to processing equipment technical field, especially a kind of pulverization treatment device for plastic recycling. BACKGROUND

[0002] In daily life and industrial production, the shape and size of plastic waste are quite different. For example, plastic bottles, plastic film, plastic pipes and other plastic waste in different forms will be difficult to recycle due to size and shape differences if directly recycled. For example, plastic film is very thin and has a large area, and plastic bottles have a certain thickness and complex shape. In order to better melt and process the next step, the size needs to be uniform. SUMMARY

[0003] Therefore, the utility model aims to provide a pulverization treatment device for plastic recycling.

[0004] The utility model adopts the following technical scheme:

[0005] A pulverization treatment device for plastic recycling includes a pulverization assembly for pulverizing plastic, a conveying assembly installed at the discharge end of the pulverization assembly, and a heating and recycling assembly installed at the output end of the conveying assembly. The pulverization assembly includes a pulverizer frame, a feed bin installed on the pulverizer frame, a discharge bin installed on one end of the pulverizer frame and communicating with the feed bin, a filter installed in the discharge bin, and a pulverizing piece installed in the feed bin for pulverizing plastic.

[0006] Further, the pulverizing piece includes a pulverizing roller installed in the feed bin, a pulverizing fixed part installed on the pulverizing roller, a pulverizing blade installed on the pulverizing fixed part, and a pulverizing drive part installed on the pulverizer frame for driving the pulverizing roller to rotate.

[0007] Further, the filter is an arc-shaped filter screen arranged in the discharge bin. The convex end of the arc-shaped filter screen is arranged away from the pulverizing piece. The concave end of the arc-shaped filter screen is tangent to the pulverizing blade.

[0008] Further, the conveying assembly includes a conveying bracket installed opposite the discharge bin and a conveying belt installed on the conveying bracket. The conveying belt is inclined upward from the discharge bin to the side of the heating and recycling assembly. The conveying assembly further includes an anti-slip strip arranged on the conveying belt to prevent material from sliding.

[0009] Further, the plurality of anti-skid strips are linearly arranged on the surface of the conveying belt; the conveying assembly further comprises a baffle arranged on both sides of the conveying belt; a fixed cavity for placing the material is formed between the adjacent anti-skid strips and the baffles.

[0010] Further, the heating and recycling assembly comprises a recycling bracket arranged at the output end of the conveying belt, and a heating element arranged on the recycling bracket and used for heating the material.

[0011] Further, the heating element comprises a heating outer cylinder arranged on the recycling bracket, a heating inner cylinder arranged in the heating outer cylinder, and a heating part arranged between the heating outer cylinder and the heating inner cylinder; the heating outer cylinder and the heating inner cylinder are closedly connected at the end faces of the side of the output end of the conveying belt.

[0012] Further, the heating part is a plurality of electric heating rods which are circumferentially arranged between the heating outer cylinder and the heating inner cylinder.

[0013] Further, the heating and recycling assembly further comprises a stirring element arranged on the heating inner cylinder; the stirring element comprises a stirring bracket arranged on the heating inner cylinder, and a stirring motor arranged on the stirring bracket; the stirring motor further comprises a driving rod; the stirring element further comprises a stirring roller arranged on the driving rod, and a plurality of stirring plates circumferentially arranged on the stirring roller.

[0014] Further, the stirring element further comprises a stirring brush arranged on the stirring plate, and the end of the stirring brush is tangent to the inner wall of the heating inner cylinder.

[0015] The plastic recycling and smashing treatment device has the advantages that:

[0016] The plastic recycling and smashing treatment device has the advantages that: BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic view of the plastic recycling and smashing treatment device of an embodiment of the present application;

[0018] Figure 2 It is Figure 1 an exploded view of the smashing assembly of the plastic recycling and smashing treatment device;

[0019] Figure 3 It is Figure 1A perspective view of a crushing piece of a plastic recycling crushing treatment device;

[0020] Figure 4 For Figure 1 An exploded view of a heating recovery assembly of a plastic recycling crushing treatment device;

[0021] Figure 5 For Figure 1 A sectional view of a heating piece of a plastic recycling crushing treatment device; DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0023] In the description of the present application, it should be pointed out that the orientations or positional relationships indicated by the terms "vertical direction", "upper", "lower", "horizontal" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, "first", "second", "third", "fourth" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present application, it should be pointed out that unless otherwise explicitly specified and limited, the terms "provided", "installed", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be connected through an intermediate medium, it can be the communication between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] Please refer to Figures 1 to 5For the plastic recycling crushing treatment device of an embodiment of the utility model, including the crushing assembly 10 for carrying out crushing to plastics, the conveying assembly 20 of installation in the discharge end of crushing assembly 10, the heating recovery assembly 30 of installation in the output end of conveying assembly 20, crushing assembly 10 includes the crushing frame 11, the feed bin 12 of installation in the crushing frame 11, the discharge bin 13 of installation in the crushing frame 11 one end and the feed bin 12 intercommunication another end towards the input end of conveying assembly 20 setting, the crushing piece 14 of installation in the feed bin 12 for crushing plastics, and the filter piece 15 of installation in the discharge bin 13.

[0026] The working principle of the plastic recycling crushing treatment device of the utility model is as follows: firstly, plastics are put into the feed bin 12, and the crushing piece 14 in the feed bin 12 cuts the plastics into smaller pieces, and the crushed plastics move to the discharge bin 13 under the action of gravity; the filter piece 15 in the discharge bin 13 filters the small plastic pieces into the conveying assembly 20, while the larger plastic pieces are intercepted by the screen and remain in the discharge bin 13 to be crushed by the crushing piece 14 until they meet the size requirements and pass through the screen; the qualified plastic pieces after crushing and screening enter the conveying assembly 20 and are stably conveyed to the heating recovery assembly 30 by the conveying assembly 20; when the plastic pieces are conveyed to the heating recovery assembly 30, the heating recovery assembly 30 heats and processes the plastic pieces; through heating, the plastic pieces gradually soften and melt, and the melted plastics can pass through the subsequent molding device or other processing technology, thereby realizing the recycling of plastics.

[0027] Compared with the prior art, the plastic recycling crushing treatment device of the utility model can crush plastic raw materials of different sizes and shapes into pieces of relatively uniform size through the crushing piece 14 and the filter piece 15 in the crushing assembly 10; the filter piece 15 can screen plastic pieces that meet certain size requirements, so that the plastic pieces entering the subsequent recycling process are uniform in size, which is beneficial to subsequent heating recovery processing; by connecting the crushing assembly 10, the conveying assembly 20 and the heating recovery assembly 30 in sequence, the automation and continuity of plastic recycling from raw material crushing to heating recovery are realized; compared with the traditional manual handling of plastic pieces between different devices for processing, the recycling efficiency is improved, and the labor cost and time cost are reduced; for example, in a small plastic recycling workshop, workers used to carry the crushed plastic pieces to the heating equipment with a shovel or other tools, which was low in efficiency and easy to cause the plastic pieces to be scattered and wasted, and such a continuous device can avoid these problems.

[0028] Please refer to Figure 2 and Figure 3The crushing piece 14 includes a crushing roller 140 installed in the feeding bin 12, a crushing fixed part 141 installed on the crushing roller 140, a crushing blade 142 installed on the crushing fixed part 141, and a crushing driving part 143 installed on the crushing frame 11 for driving the crushing roller 140 to rotate. The crushing roller 140 rotates under the driving of the crushing driving part 143, and the rotating movement can draw the plastic entering the feeding bin 12 into the crushing area, increasing the contact opportunity of the plastic with the crushing blade 142, so as to realize a high-efficiency crushing process; the crushing blade 142 installed on the crushing fixed part 141 is a part directly cutting and crushing the plastic; under the driving of the crushing roller 140, the crushing blade 142 rotates at a high speed, generating strong shearing force and impact force on the plastic, and in the crushing process, the crushing fixed part 141 can ensure that the crushing blade 142 remains stable in position under the high-speed rotation and strong impact, thereby ensuring the reliability and service life of the crushing device.

[0029] The filter piece 15 is an arc-shaped filter screen arranged in the discharging bin 13; the convex end of the arc-shaped filter screen is arranged away from the crushing piece 14; and the concave end of the arc-shaped filter screen is arranged tangent to the crushing blade 142. The shape of the arc-shaped filter screen is helpful for the natural flow and screening of the plastic fragments in the discharging bin 13; when the crushed plastic fragments move from the crushing piece 14 to the discharging bin 13, the fragments will slide along the surface of the arc-shaped filter screen; due to the arc shape of the filter screen, the fragments can be more uniformly distributed on the surface of the filter screen under the action of gravity and inertia, increasing the contact area and contact time of the fragments with the filter screen, thereby improving the filtering efficiency; the centrifugal force generated by the crushing blade 142 can directly throw the fragments to the filter screen part tangent to it, and this close connection reduces the disordered accumulation of the fragments in the discharging bin 13, so that the fragments can be filtered in time; moreover, it can also prevent the accumulation of fragments of larger size at the bottom of the discharging bin 13, affecting the filtering effect; the convex end of the arc-shaped filter screen is arranged away from the crushing piece 14, so that the plastic fragments of larger size will be gathered along the direction of the convex end after being intercepted by the filter screen; it can avoid the intercepted large fragments from being drawn into the crushing process again, causing over-crushing and equipment jamming; at the same time, it is also convenient for cleaning the intercepted large fragments; when the filter screen needs to be cleaned, the staff can easily collect and remove these large fragments from the convex end, ensuring the smoothness of the filter screen and the normal operation of the equipment.

[0030] Please refer to Figure 1The conveying assembly 20 comprises a conveying bracket 21 mounted opposite the discharge bin 13 and a conveying belt 22 mounted on the conveying bracket 21; the conveying belt 22 is arranged obliquely upward from the discharge bin 13 to the side of the heating and recycling assembly; the conveying assembly 20 further comprises anti-skid strips 23 arranged on the conveying belt 22 to prevent the material from sliding off. In this embodiment, the material is crushed plastic. The conveying belt 22 is arranged obliquely upward from the discharge bin 13 to the side of the heating and recycling assembly, and the crushed plastic pieces are effectively conveyed from the lower discharge bin 13 to the higher heating and recycling assembly 30 by the power of the conveying belt 22; the obliquely upward conveying belt 22 can conveniently span the height difference, ensuring the smooth transfer of the material between different assemblies and realizing the continuity of the entire recycling process; the anti-skid strips 23 arranged on the conveying belt 22 can effectively prevent the material from sliding off; since the conveying belt 22 is obliquely upward, the plastic pieces have a tendency to slide downward under the action of gravity; the anti-skid strips 23 increase the friction between the plastic pieces and the conveying belt 22, so that the pieces can be stably attached to the conveying belt 22 and conveyed upward; for example, when some plastic pieces with smooth surfaces or a large number of pieces are conveyed, the anti-skid strips 23 can ensure that the material does not slide off due to the inclination angle, ensuring the stability and reliability of the material conveying; a stable conveying process can avoid the spilling and re-collection of the material, thereby improving the working efficiency of the entire plastic recycling device; the obliquely upward conveying belt 22 in cooperation with the anti-skid strips 23 can ensure that the material is efficiently and completely conveyed to the heating and recycling assembly 30, reducing the time waste caused by material conveying problems and enabling the plastic recycling process to be carried out more quickly.

[0031] The plurality of anti-skid strips 23 are linearly arranged on the surface of the conveying belt 22; the conveying assembly 20 further comprises a baffle 24 arranged on both sides of the conveying belt 22; a fixed cavity for placing materials is formed between adjacent anti-skid strips 23 and the baffle 24 on both sides. The fixed cavity formed between adjacent anti-skid strips 23 and the baffle 24 on both sides allows the plastic fragments to have a clear placement area on the conveying belt 22; each fixed cavity is like a small “material bin” and can place plastic fragments in a partitioned manner; during conveying, the plastic fragments are limited within the fixed cavity, avoiding the fragments to be distributed in a disorderly manner on the conveying belt 22, which is conducive to arranging the materials; for example, when the size and shape of the recycled plastic fragments differ greatly, the fixed cavity can prevent the fragments from being pressed and stacked with each other, so that they can be relatively neatly arranged in the respective cavities, thereby facilitating the subsequent heating and recycling assembly 30 to more accurately process the materials; the baffles 24 arranged on both sides of the conveying belt 22 can effectively prevent the plastic fragments from falling off the edge of the conveying belt 22; when the conveying belt 22 runs upwardly and obliquely, the fragments may move to the edge due to inertia or being pressed by other fragments; the baffle 24 as a blocking structure can limit the fragments within the range of the conveying belt 22, avoiding the overflow of the materials; in cooperation with the anti-skid strips 23, a relatively closed material conveying space is formed, which greatly reduces the loss of materials during conveying and improves the recovery rate of the materials.

[0032] Please refer to Figure 1 , Figure 4 and Figure 5 The heating and recycling assembly 30 comprises a recycling support 31 installed at the output end of the conveying belt 22 and a heating member 32 installed on the recycling support 31 for heating the materials. The heating and recycling assembly 30 is installed at the output end of the conveying belt 22, which makes the whole plastic recycling device more compact and continuous in flow; the plastic fragments directly enter the heating and recycling assembly 30 from the conveying belt 22, reducing the intermediate transfer link and space occupation, and ensuring that the plastic recycling process can be efficiently and smoothly carried out; the heating member 32 on the recycling support 31 can provide stable heat for the materials, so that the plastic fragments can be heated in a relatively concentrated area; through the heating member 32, the heating temperature and time can be accurately controlled according to the type of plastic, so as to ensure that the plastic fragments can be fully melted and then effectively recycled and utilized.

[0033] Please refer to Figure 4 and Figure 5The heating element 32 includes a heating outer cylinder 320 mounted on the recycling support, a heating inner cylinder 321 arranged in the heating outer cylinder 320, and a heating part 322 arranged between the heating outer cylinder 320 and the heating inner cylinder; the end faces of the heating outer cylinder 320 and the heating inner cylinder 321 towards the output end side of the conveying belt 22 are closed and connected. The heating element 32 adopts a double-cylinder structure of the heating outer cylinder 320 and the heating inner cylinder 321, and the heating part 322 is arranged between the two, which can effectively concentrate heat in the area between the inner and outer cylinders; the heat generated by the heating part 322 can be transmitted to the inside of the heating inner cylinder 321 by heat conduction, and the plastic pieces are heated; since the heat is limited in the limited space between the inner and outer cylinders, the heat loss is less, thereby improving the utilization efficiency of the heat; the end faces of the heating outer cylinder 320 and the heating inner cylinder 321 towards the output end side of the conveying belt 22 are closed and connected, which helps to further retain heat; after the plastic pieces enter the heating inner cylinder 321 from the conveying belt 22, the closed end faces can prevent heat loss from this direction, so that the plastic pieces are heated in a relatively stable high-temperature environment; moreover, such closed connection can guide the heat to circulate better in the cylinder, so that the heat is more evenly distributed in the inside of the heating inner cylinder 321, ensuring that all parts of the plastic pieces can be fully heated.

[0034] The heating part 322 is a plurality of electric heating rods arranged in a circumferential array between the heating outer cylinder 320 and the heating inner cylinder. The plurality of electric heating rods arranged in a circumferential array between the heating outer cylinder 320 and the heating inner cylinder 321 can make the heat evenly distributed in the circumferential direction of the heating inner cylinder 321; when the plastic pieces are located in the heating inner cylinder 321, they can receive uniform heat from all directions no matter their position in the cylinder is close to the center or close to the edge; thereby ensuring that all plastic pieces can be heated in a relatively consistent temperature environment, which is conducive to improving the quality of recycled plastic; such circumferential array layout can effectively avoid local overheating.

[0035] The heating and recycling assembly 30 further comprises a stirring member 33 arranged on the heating inner cylinder 321; the stirring member 33 comprises a stirring support 330 arranged on the heating inner cylinder, a stirring motor 331 arranged on the stirring support 330; the stirring motor 331 further comprises a driving rod; the stirring member 33 further comprises a stirring roller 332 arranged on the driving rod, and a plurality of stirring plates 333 arranged on the stirring roller 332 in a circumferential array. The stirring member 33 is arranged on the heating inner cylinder 321, and the stirring motor 331 drives the stirring roller 332 and the stirring plates 333 to rotate through the driving rod, so as to stir the plastic pieces in the heating inner cylinder 321; during the heating process, the plastic pieces may be unevenly heated due to different shapes, sizes and stacking manners; the stirring action can make the plastic pieces constantly turn over in the heating inner cylinder 321, so that each plastic piece has the opportunity to contact the cylinder wall with higher temperature and the surrounding hot air, and ensures that the heat can be uniformly transmitted to each plastic piece; for example, for the plastic pieces stacked at the bottom, the stirring can bring them to the upper part, so that they are fully heated, avoiding the situation that the bottom plastic is excessively melted due to heat accumulation, while the upper plastic is not completely melted due to insufficient heat; the stirring plates 333 will make the plastic pieces collide and rub with each other during rotation, and such collision and friction can generate additional heat and can destroy the heat insulation layer that may exist on the surface of the plastic pieces; this helps to enhance heat conduction and accelerate the melting speed of the plastic pieces; for example, when the air layer on the surface of the plastic pieces is broken by the stirring plates 333, the heat of the hot air and the cylinder wall can be more directly transmitted to the surface of the plastic pieces, so that the plastic pieces reach the melting point and melt faster.

[0036] The stirring member 33 further comprises a stirring brush 334 arranged on the stirring plate 333, and the end of the stirring brush 334 is tangent to the inner wall of the heating inner cylinder 321. The end of the stirring brush 334 is tangent to the inner wall of the heating inner cylinder 321, and the stirring brush 334 can wipe the inner wall of the heating inner cylinder 321 when the stirring motor 331 drives the stirring plate 333 to rotate. During the heating and melting process of the plastic, part of the plastic may stick to the cylinder wall due to high temperature; the stirring brush 334 can clean these attached plastics in time to prevent them from accumulating too much to affect the heating efficiency of the heating inner cylinder 321 and the recycling quality of the plastic; for example, if the plastic residues on the cylinder wall are not cleaned for a long time, the heat conduction performance of the cylinder wall will decrease, and the stirring brush 334 can keep the cylinder wall clean to ensure that the heat can be effectively transmitted to the plastic pieces in the cylinder; the stirring brush 334 is tangent to the cylinder wall, and can drive the plastic pieces near the cylinder wall to participate in the stirring while cleaning the cylinder wall; this helps to fully mix the materials near the cylinder wall with the materials in the central area; the stirring brush 334 can also make these edge materials better integrate into the entire material system, so that the mixing of the plastic pieces in the heating inner cylinder 321 is more uniform, thereby improving the quality of the recycled plastic.

[0037] The above merely expresses the preferred technical solutions of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, and the present application also intends to include these changes and modifications.

Claims

1. A shredding treatment device for plastic recycling, characterized by, The application relates to a plastic crushing and recycling device, which comprises a crushing assembly for crushing plastic, a conveying assembly installed at the discharging end of the crushing assembly, and a heating and recycling assembly installed at the output end of the conveying assembly.

2. The shredding treatment device for plastic recycling according to claim 1, characterized by The crushing assembly comprises a crushing frame, a feeding bin installed on the crushing frame, a discharging bin installed on the crushing frame and communicating with the feeding bin, crushing parts installed in the feeding bin for crushing plastic, and filtering parts installed in the discharging bin.

3. The shredding treatment device for plastic recycling according to claim 2, characterized by The crushing parts comprise a crushing roller installed in the feeding bin, a crushing fixed part installed on the crushing roller, a crushing blade installed on the crushing fixed part, and a crushing driving part installed on the crushing frame for driving the crushing roller to rotate.

4. The shredding treatment device for plastic recycling according to claim 1, characterized by The filtering parts are arc-shaped filter screens installed in the discharging bin; the convex end of the arc-shaped filter screen is arranged on the side away from the crushing parts; and the concave end of the arc-shaped filter screen is tangent to the crushing blade.

5. The shredding treatment device for plastic recycling according to claim 4, wherein The conveying assembly comprises conveying supports installed on the opposite sides of the discharging bin, and a conveying belt installed on the conveying supports; the conveying belt is arranged obliquely upwards from the discharging bin to the side of the heating and recycling assembly; and the conveying assembly further comprises anti-skid strips arranged on the conveying belt for preventing the material from sliding.

6. The shredding treatment device for plastic recycling according to claim 5, wherein The anti-skid strips are linearly arranged on the surface of the conveying belt; the conveying assembly further comprises baffles arranged on the two sides of the conveying belt; and a fixed cavity for placing the material is formed between the adjacent anti-skid strips and the baffles.

7. The shredding treatment device for plastic recycling according to claim 6, wherein The heating and recycling assembly comprises a recycling support installed at the output end of the conveying belt, and heating parts installed on the recycling support for heating the material.

8. The shredding treatment device for plastic recycling according to claim 7, characterized by The heating parts comprise a heating outer cylinder installed on the recycling support, a heating inner cylinder arranged in the heating outer cylinder, and a heating part arranged between the heating outer cylinder and the heating inner cylinder; the end faces of the heating outer cylinder and the heating inner cylinder are closed and connected towards the side of the output end of the conveying belt.

9. The shredding treatment device for plastic recycling according to claim 7, wherein The heating part is a plurality of electric heating rods which are circumferentially arranged between the heating outer cylinder and the heating inner cylinder.

10. The shredding treatment device for plastic recycling according to claim 9, wherein The heating and recycling assembly further comprises stirring parts arranged on the heating inner cylinder; the stirring parts comprise a stirring support installed on the heating inner cylinder, and a stirring motor installed on the stirring support; the stirring motor further comprises a driving rod; the stirring parts further comprise a stirring roller installed on the driving rod, and stirring plates circumferentially arranged on the stirring roller. The stirring parts further comprise stirring brushes installed on the stirring plates, and the end of the stirring brushes is tangent to the inner wall of the heating inner cylinder.

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