A waste plastic recycling device with a multi-section temperature control crushing cavity structure

Abstract

The utility model discloses a kind of waste plastics recycling device with multi-section type temperature control crushing cavity structure, screening mechanism includes middle isolation box, the outer surface of middle isolation box is hinged with upper access door, the inner wall upper end of middle isolation box is fixedly installed with guide slope, guide slope width gradually increases from top to bottom, and gap is left with the inner wall of middle isolation box in the both sides of guide slope, the both sides of guide slope are inserted and slidably connected with mounting plate, the outer surface of each mounting plate is adhesively fixed with a plurality of dust cloth strips, each dust cloth strip extends towards vertical direction, the inner wall lower end of middle isolation box is fixedly installed with arc filter plate, waste plastics are preliminarily crushed by double-roller crusher, then waste plastics are secondarily crushed by continuously rotating crushing knife, the contact area of waste plastics after being broken is increased with dry hot air, and stirring vane is arranged in lower isolation box to continuously stir waste plastics, thereby ensuring that waste plastics are evenly dried, which helps to improve drying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plastic recycling technology, specifically to a waste plastic recycling device with a multi-stage temperature-controlled crushing chamber structure. Background Technology

[0002] Drying during waste plastic recycling mainly involves removing residual moisture from the plastic through heating or ventilation to prevent moisture from generating bubbles, degrading material properties, or affecting product quality during subsequent melting and processing.

[0003] In existing technologies, some waste plastics are quite large, making it inconvenient to evenly dry the moisture on the surface of the plastics. To address this issue, a waste plastic recycling device with a multi-stage temperature-controlled crushing chamber structure is proposed. Utility Model Content

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A waste plastic recycling device with a multi-stage temperature-controlled crushing chamber structure includes a crushing mechanism, a screening mechanism below the crushing mechanism, and a drying mechanism below the screening mechanism.

[0006] The screening mechanism includes a middle isolation box, with an upper maintenance door hinged to the outer surface of the middle isolation box. A guide slope is fixedly installed on the upper end of the inner wall of the middle isolation box. The width of the guide slope gradually increases from top to bottom, and there are gaps between the two sides of the guide slope and the inner wall of the middle isolation box. Mounting plates are inserted into and slidably connected to the two sides of the guide slope. Several dustproof strips are glued and fixed to the outer surface of each mounting plate. Each dustproof strip extends vertically. An arc-shaped filter plate is fixedly installed on the lower end of the inner wall of the middle isolation box.

[0007] As a further embodiment of this utility model: a driving device is fixedly installed on the outer wall of the middle isolation box, the output shaft of the driving device extends into the middle isolation box and is fixedly connected to a rotating frame, a number of crushing blades are fixedly connected to the outer side of the rotating frame along the length direction, the middle part of each rotating frame protrudes from the surface of the middle isolation box and is fixedly connected to an upper synchronous wheel, and the two ends of the rotating frame are supported by the inner wall of the middle isolation box and are rotatably connected.

[0008] As a further embodiment of this utility model: the drying mechanism includes a lower isolation box, and side baffles are fixedly installed on both sides of the inner wall of the lower isolation box. The width of the side baffles gradually increases from top to bottom. A drying fan is embedded and connected through the upper end of the outer wall of each side baffle. One end of the drying fan extends to the outside of the lower isolation box, and a dustproof net is embedded and fixed at the end of the side baffle slope near the air outlet of the drying fan.

[0009] As a further embodiment of this utility model: a stirring blade is rotatably connected to the inner wall of the lower isolation box and located between the two side baffles. One end of the stirring blade extends to the outside of the lower isolation box and is fixedly connected to a lower synchronous pulley. The outer side of the lower synchronous pulley is connected to the upper synchronous pulley through a transmission belt.

[0010] As a further embodiment of this utility model: a telescopic rod is inserted and slidably connected to the center of the front of each of the side blocks, and a lower inspection door is fixedly connected to the front ends of the two telescopic rods. A discharge baffle is slidably connected through the center of the bottom surface of each side block.

[0011] As a further embodiment of this utility model: the crushing mechanism includes a feed hopper, the bottom of which is connected to an upper isolation box, and a double-roll crusher is installed inside the upper isolation box.

[0012] As a further embodiment of this utility model: the bottom surface of the feed hopper is fixedly connected to the top surface of the middle isolation box, and the bottom surface of the middle isolation box is fixedly connected to the top surface of the lower isolation box.

[0013] The beneficial effects of this utility model are:

[0014] (1) This utility model uses a double roller crusher to initially crush waste plastics, and then uses a continuously rotating crushing blade to crush the waste plastics a second time. After being screened by an arc-shaped filter plate, the waste plastics fall into the lower isolation box and are dried by a drying fan. The crushed waste plastics increase the contact area with the drying hot air, and the stirring blades in the lower isolation box continuously stir the waste plastics, thereby ensuring uniform drying of the waste plastics and helping to improve drying efficiency.

[0015] (2) A dustproof structure consisting of multiple dustproof cloth strips is set on the upper outer side of the crushing blade to prevent dust and fine particles from flying upwards and splashing to the outside of the equipment when the crushing blade cuts and crushes the waste plastic, thus reducing environmental pollution. The dustproof cloth strips are supported on the outside of the guide slope by the mounting plate. The mounting plate can be pulled out and the dustproof cloth strips can be removed by opening the upper maintenance door, which facilitates the cleaning of residual materials and dustproof cloth strips inside the screening mechanism. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the upper and lower synchronous pulleys in this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the lower isolation box in this utility model;

[0020] Figure 4 This is a cross-sectional view of the isolation box in this utility model;

[0021] Figure 5 This is a cross-sectional structural diagram of the lower isolation box in this utility model.

[0022] In the diagram: 1. Crushing mechanism; 101. Feed hopper; 102. Upper isolation box; 103. Double roll crusher; 2. Screening mechanism; 201. Middle isolation box; 202. Upper inspection door; 203. Guide slope; 204. Mounting plate; 205. Dustproof cloth strip; 206. Arc-shaped filter plate; 207. Drive device; 208. Rotating frame; 209. Crushing blade; 210. Upper synchronous pulley; 3. Drying mechanism; 301. Lower isolation box; 302. Side baffle; 303. Drying fan; 304. Dustproof net; 305. Mixing blades; 306. Lower synchronous pulley; 307. Telescopic rod; 308. Lower inspection door; 309. Discharge baffle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-5 As shown, a waste plastic recycling device with a multi-stage temperature-controlled crushing chamber structure includes a crushing mechanism 1, a screening mechanism 2 below the crushing mechanism 1, and a drying mechanism 3 below the screening mechanism 2. The screening mechanism 2 includes a middle isolation box 201, with an upper inspection door 202 hinged to the outer surface of the middle isolation box 201. A guide slope 203 is fixedly installed on the upper end of the inner wall of the middle isolation box 201. The width of the guide slope 203 gradually increases from top to bottom, and gaps are left between the two sides of the guide slope 203 and the inner wall of the middle isolation box 201. Mounting plates 204 are inserted into and slidably connected to the two sides of the guide slope 203. Several dustproof strips 205 are glued and fixed to the outer surface of each mounting plate 204, and each dustproof strip 205 extends vertically. An arc-shaped filter plate 206 is fixedly installed on the lower end of the inner wall of the middle isolation box 201. Figure 4 As shown, each dustproof cloth strip 205 is kept away from the shredder 209, thereby avoiding being crushed by the shredder 209.

[0025] A drive unit 207 is fixedly installed on the outer wall of the intermediate isolation box 201. The output shaft of the drive unit 207 extends into the interior of the intermediate isolation box 201 and is fixedly connected to a rotating frame 208. Several crushing blades 209 are fixedly connected along the length of the outer side of the rotating frame 208. The middle part of each rotating frame 208 protrudes from the surface of the intermediate isolation box 201 and is fixedly connected to an upper synchronous pulley 210. The two ends of the rotating frame 208 are supported by the inner wall of the intermediate isolation box 201 and are rotatably connected. Figure 1 As shown, the drive unit 207 can be a KAF37 gear reducer.

[0026] The drying mechanism 3 includes a lower isolation box 301. Side baffles 302 are fixedly installed on both sides of the inner wall of the lower isolation box 301. The width of the side baffles 302 gradually increases from top to bottom. A drying fan 303 is embedded and connected through the upper end of the outer wall of each side baffle 302. One end of the drying fan 303 extends to the outside of the lower isolation box 301, and a dustproof net 304 is embedded and fixed at the end of the slope of the side baffle 302 near the air outlet of the drying fan 303. Figure 5 As shown, the drying fan 303 can be an industrial hot air fan such as HWIR900F, with both temperature and airflow adjustable.

[0027] A stirring blade 305 is rotatably connected to the inner wall of the lower isolation box 301 and located between two side baffles 302. One end of the stirring blade 305 extends to the outside of the lower isolation box 301 and is fixedly connected to a lower synchronous pulley 306. The outer side of the lower synchronous pulley 306 is connected to the upper synchronous pulley 210 via a transmission belt. Figure 2 As shown, the lower synchronous pulley 306, the upper synchronous pulley 210, and the cooperating transmission belt can be toothed synchronous pulleys and toothed synchronous belts, thereby ensuring the stability of the transmission.

[0028] Each side baffle 302 has a telescopic rod 307 inserted and slidably connected to the center of its front side. The front ends of two telescopic rods 307 are fixedly connected to a lower inspection door 308. A discharge baffle 309 is slidably connected through the center of the bottom surface of each side baffle 302. Figure 5 As shown, the lower inspection door 308 can be moved outward to facilitate the cleaning of the interior of the lower isolation box 301 by the operator.

[0029] The crushing mechanism 1 includes a feed hopper 101, with an upper isolation box 102 connected through and fixedly connected to the bottom of the feed hopper 101. A double-roll crusher 103 is installed inside the upper isolation box 102. Figures 1-2 As shown, the double-roll crusher 103 can be the existing Danxing Machinery 2000 type double-shaft shredder.

[0030] The bottom surface of the feed hopper 101 is fixedly connected to the top surface of the middle isolation box 201, and the bottom surface of the middle isolation box 201 is fixedly connected to the top surface of the lower isolation box 301, such as... Figure 1As shown, the structure in the device is arranged vertically, thereby reducing the space occupied by the equipment.

[0031] The working principle of this utility model:

[0032] When the device is in use, waste plastic is fed into the feed hopper 101 and initially crushed by the double roller crusher 103. The waste plastic then falls onto the guide slope 203 and passes through the gaps on both sides through the dustproof cloth strips 205 to fall above the arc-shaped filter plate 206. The reduction motor in the drive device 207 drives the rotating frame 208 and the crushing blades 209 to rotate synchronously and crush the waste plastic again. After being crushed, the waste plastic falls into the lower isolation box 301 after being screened by the arc-shaped filter plate 206. When the rotating frame 208 rotates, the upper synchronous wheel 210, the synchronous belt and the lower synchronous wheel 306 work together to drive the stirring blades 305 to rotate, so that the waste plastic is continuously turned over. Then the drying fan 303 is started to heat the air outside the device and blow it into the lower isolation box 301, so that the surface moisture of the waste plastic is dried by the hot air. Finally, the discharge baffle 309 is pulled out to discharge the waste plastic from the lower isolation box 301.

[0033] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A waste plastic recycling device with a multi-stage temperature-controlled crushing chamber structure, comprising a crushing mechanism (1), a screening mechanism (2) below the crushing mechanism (1), and a drying mechanism (3) below the screening mechanism (2); Its features are, The screening mechanism (2) includes a middle isolation box (201), an upper inspection door (202) is hinged to the outer surface of the middle isolation box (201), a guide slope (203) is fixedly installed on the upper end of the inner wall of the middle isolation box (201), the width of the guide slope (203) gradually increases from top to bottom, and there is a gap between the two sides of the guide slope (203) and the inner wall of the middle isolation box (201). Mounting plates (204) are inserted and slidably connected to the two sides of the guide slope (203), and several dustproof cloth strips (205) are glued and fixed to the outer surface of each mounting plate (204). Each dustproof cloth strip (205) extends in the vertical direction. An arc-shaped filter plate (206) is fixedly installed on the lower end of the inner wall of the middle isolation box (201).

2. The waste plastic recycling device with a multi-stage temperature-controlled crushing chamber structure according to claim 1, characterized in that, A drive device (207) is fixedly installed on the outer wall of the middle isolation box (201). The output shaft of the drive device (207) extends into the middle isolation box (201) and is fixedly connected to a rotating frame (208). Several crushing blades (209) are fixedly connected to the outer side of the rotating frame (208) along the length direction. The middle part of each rotating frame (208) protrudes from the surface of the middle isolation box (201) and is fixedly connected to an upper synchronous wheel (210). The two ends of the rotating frame (208) are supported by the inner wall of the middle isolation box (201) and are rotatably connected.

3. A waste plastic recycling device with a multi-stage temperature-controlled crushing chamber structure according to claim 2, characterized in that, The drying mechanism (3) includes a lower isolation box (301). Side baffles (302) are fixedly installed on both sides of the inner wall of the lower isolation box (301). The width of the side baffles (302) gradually increases from top to bottom. A drying fan (303) is embedded and connected through the upper end of the outer wall of each side baffle (302). One end of the drying fan (303) extends to the outside of the lower isolation box (301), and a dustproof net (304) is embedded and fixed at the end of the slope of the side baffle (302) near the air outlet of the drying fan (303).

4. A waste plastic recycling device with a multi-stage temperature-controlled crushing chamber structure according to claim 3, characterized in that, The inner wall of the lower isolation box (301) and located between the two side blocks (302) is rotatably connected to a stirring blade (305). One end of the stirring blade (305) extends to the outside of the lower isolation box (301) and is fixedly connected to a lower synchronous pulley (306). The outer side of the lower synchronous pulley (306) is connected to the upper synchronous pulley (210) through a transmission belt.

5. A waste plastic recycling device with a multi-stage temperature-controlled crushing chamber structure according to claim 4, characterized in that, Each of the side blocks (302) has a telescopic rod (307) inserted and slidably connected to the center of its front side. The front ends of the two telescopic rods (307) are fixedly connected to a lower inspection door (308). A discharge baffle (309) is slidably connected through the center of the bottom surface of each side block (302).

6. A waste plastic recycling device with a multi-stage temperature-controlled crushing chamber structure according to claim 3, characterized in that, The crushing mechanism (1) includes a feed hopper (101), the bottom of which is connected to an upper isolation box (102), and a double roll crusher (103) is installed inside the upper isolation box (102).

7. A waste plastic recycling device with a multi-stage temperature-controlled crushing chamber structure according to claim 6, characterized in that, The bottom surface of the feed hopper (101) is fixedly connected to the top surface of the middle isolation box (201), and the bottom surface of the middle isolation box (201) is fixedly connected to the top surface of the lower isolation box (301).

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