Efficient melting device for waste plastic reprocessing

Abstract

The utility model discloses an efficient melting device for waste plastic reprocessing, which belongs to the technical field of waste plastic reprocessing, and adopts the technical scheme that the efficient melting device comprises a processing box, a melting tank is fixedly connected to the middle of the processing box, a heater is arranged at the bottom of the processing box, and the heater is in contact with the bottom of the melting tank; a storage tank is fixedly connected to the top of the melting tank, a feeding port is formed in the bottom of the storage tank, the adding amount of crushed plastic raw materials through the feeding port can be controlled through a closing mechanism, waste heat of waste gas generated during plastic melting can be recycled through a flue gas waste heat recycling mechanism, and the waste heat of the waste gas is recycled. Plastic to be melted is preheated through heat in waste gas through heat transfer, the plastic melting efficiency can be improved, plastic raw materials in the melting tank and the storage tank are stirred through the stirring mechanism, the plastic melting efficiency in the melting tank can be improved, and the plastic raw materials in the storage tank can be evenly heated.

Description

Technical Field

[0001] The utility model relates to the technical field of waste plastic reprocessing, in particular to a high-efficiency melting device for waste plastic reprocessing. Background Art

[0002] Waste plastics include post-consumer plastic waste and pre-consumer plastic waste. Post-consumer plastic waste refers to discarded plastic products after consumption or use. Plastics will also generate waste and scraps in the synthesis, molding, processing, circulation and other links. These plastic wastes are also called pre-consumer plastic waste. The properties of the plastic material itself do not change significantly after the use of waste plastics. Therefore, they can be recycled and reprocessed into plastic products using appropriate methods and used again.

[0003] In the deep processing of waste plastics, the waste fragments need to be crushed, heated and melted, and finally reshaped into new plastic products for use; the existing heating and melting devices for deep processing of waste plastics have low heating and melting efficiency, and the melted plastic mixture still contains small particles of plastic solids, which need to be heated and melted again, which is not conducive to use.

[0004] The Chinese utility model patent with the current announcement number: CN210552332U discloses a heating and melting device for deep processing of waste plastics, including a heating box, a melting box and a burner. The heating and melting device of this utility model heats the plastic fragments in the melting box and stirs them through stirring blades, so that the plastic fragments are heated evenly and melted quickly, and the crushing teeth arranged on the stirring blades can also crush some large plastic fragments, so as to facilitate rapid heating and melting with high efficiency; the melted liquid is introduced into a secondary melting box and stirred by a stirrer, and then the liquid is heated in layers by multiple heating plates, so as to melt the solid particles contained in the liquid, so as to completely melt the plastic fragments into liquid.

[0005] In view of the above problems, existing patents have provided solutions, but there is a problem that the waste heat generated by the melting of plastics cannot be recovered and utilized. There is a large amount of heat in the waste gas, and if it is directly discharged, it will cause a waste of energy.

[0006] Therefore, a high-efficiency melting device for reprocessing waste plastics is proposed. Utility Model Content

[0007] 1. Technical issues to be solved

[0008] The utility model provides a high-efficiency melting device for reprocessing waste plastics, aiming to solve the problem that the existing heating melting devices for deep processing of waste plastics cannot recycle the waste heat generated by the melting of plastics, and there is a large amount of heat in the waste gas, which will cause energy waste if it is directly discharged.

[0009] Technical Solution

[0010] The utility model is implemented as follows: a high-efficiency melting device for reprocessing waste plastics comprises a processing box, a melting tank is fixedly connected to the middle of the processing box, a heater is arranged at the bottom of the processing box, the heater contacts the bottom of the melting tank, a storage tank is fixedly connected to the top of the melting tank, a feeding port is arranged at the bottom of the storage tank, the feeding port is connected and matched with the melting tank, a flue gas waste heat recovery mechanism is arranged on the side wall of the storage tank, a closing mechanism is arranged on the side wall of the feeding port, and a stirring mechanism is arranged in the middle of the melting tank;

[0011] The flue gas waste heat recovery mechanism includes a heat preservation cover, a spiral heat exchange tube, a smoke exhaust pipe, a liquid adding pipe and a smoke outlet pipe. The heat preservation cover is fixedly connected to the side wall of the storage tank, the spiral heat exchange tube is arranged on the inner wall of the heat preservation cover, the smoke exhaust pipe is through-set at the top of the melting tank and is through-connected with the spiral heat exchange tube, the liquid adding pipe is arranged at the top of the heat preservation cover, and the smoke outlet pipe is arranged on the side wall of the heat preservation cover and is through-matched with the top of the spiral heat exchange tube.

[0012] In order to achieve the effect of closing the feeding port and controlling the feeding amount of the crushed plastic raw material inside the storage tank, as a preferred high-efficiency melting device for recycling waste plastics of the utility model, the closing mechanism includes a mounting cover, an electric telescopic rod and a closing block, the mounting cover is fixedly connected to the side wall of the feeding port, the electric telescopic rod is bolted to the side wall of the mounting cover, the closing block is fixedly connected to the output end of the electric telescopic rod, and the closing block is movably arranged inside the mounting cover and the side wall is in contact with the inner wall of the feeding port.

[0013] In order to stir the plastic raw materials inside the melting tank and the storage tank, the plastic melting efficiency inside the melting tank can be accelerated, and the plastic raw materials inside the storage tank can be evenly heated. As a preferred high-efficiency melting device for recycling waste plastics of the utility model, the stirring mechanism includes a mounting frame, a motor, a stirring shaft, a stirring rod, a stirring shaft, a stirring blade, a driving wheel, a driven wheel and a transmission belt. The mounting frame is fixedly connected to the top of the melting tank, the motor is bolted to the top surface of the mounting frame, the stirring shaft is fixedly connected to the output end of the motor and is connected to the mounting frame and the melting tank bearing, a plurality of the stirring rods are equidistantly arranged on the side wall of the stirring shaft, the stirring shaft bearing is connected to the middle part of the storage tank, a plurality of the stirring blades are equidistantly arranged on the side wall of the stirring shaft, the driving wheel is fixedly connected to the side wall of the stirring shaft, the driven wheel is fixedly connected to the side wall of the stirring shaft, and the transmission belt is arranged on the side walls of the driving wheel and the driven wheel.

[0014] In order to facilitate the addition of raw materials into the storage tank and the discharge of melted plastic, a preferred high-efficiency melting device for recycling waste plastics of the utility model is provided with a feed inlet at the top of the storage tank and a discharge pipe at the bottom of the melting tank.

[0015] In order to achieve the effect of filtering and discharging the exhaust gas recovered from waste heat, as a preferred high-efficiency melting device for recycling waste plastics of the utility model, a support plate is fixedly connected to the side wall of the heat preservation cover, a smoke extractor is bolted to the top surface of the support plate, the smoke extraction end of the smoke extractor cooperates with the smoke outlet pipe, a filter box is fixedly connected to the top surface of the support plate, the filter box is through-fitted with the smoke exhaust end of the smoke extractor, two groups of filter nets are arranged in the middle of the filter box, and a treatment pipe is arranged on the side wall of the filter box.

[0016] In order to scrape the bottom of the melting tank and prevent the melted raw materials from remaining at the bottom of the melting tank, as a preferred high-efficiency melting device for recycling waste plastics of the utility model, three scrapers are fixedly connected to the bottom of the stirring shaft, and the scrapers are in contact with the inner wall of the melting tank.

[0017] In order to facilitate the exhaust gas to enter the smoke exhaust pipe, as a preferred high-efficiency melting device for recycling waste plastics of the utility model, a guide top is fixedly connected to the inner top wall of the melting tank, the top of the guide top cooperates with the smoke exhaust pipe, the stirring shaft is connected to the guide top bearing, and the feeding port penetrates to the bottom of the guide top.

[0018] In order to facilitate the maintenance of the interior of the processing box, as a preferred embodiment of the utility model of a high-efficiency melting device for reprocessing waste plastics, inspection ports are provided on both side walls of the processing box. Beneficial Effects

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model is capable of recovering the waste heat of the waste gas generated when the plastic is melted by arranging a flue gas waste heat recovery mechanism, and preheating the plastic to be melted by the heat in the waste gas through heat transfer, which can improve the efficiency of plastic melting, thereby effectively solving the problem in the prior art that the waste heat of the waste gas generated when the plastic is melted cannot be recovered and utilized. There is a large amount of heat in the waste gas, and directly discharging it will cause energy waste.

[0021] 2. The utility model can control the feeding amount of the crushed plastic raw material in the storage tank by setting a closing mechanism, thereby effectively solving the problem of the inability to control the feeding amount in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the overall structure diagram of the utility model;

[0023] Figure 2 It is a left view of the utility model;

[0024] Figure 3 For this utility model Figure 2 The three-dimensional cross-section view at AA in the middle;

[0025] Figure 4 It is a schematic diagram of the stirring mechanism of the utility model;

[0026] Figure 5 It is a schematic diagram of the flue gas waste heat recovery mechanism of the utility model;

[0027] Figure 6 It is a schematic diagram of the support plate, smoke extractor, filter box, filter screen and treatment pipe of the utility model.

[0028] Description of the numbers in the figure:

[0029] 1. Processing box; 2. Melting tank; 3. Heater; 4. Storage tank; 5. Feeding port; 6. Flue gas waste heat recovery mechanism; 7. Closing mechanism; 8. Stirring mechanism; 61. Insulation cover; 62. Spiral heat exchange tube; 63. Smoke exhaust pipe; 64. Liquid adding pipe; 65. Smoke exhaust pipe; 71. Installation cover; 72. Electric telescopic rod; 73. Closing block; 81. Installation frame; 82. Motor; 83. Stirring shaft; 84. Stirring rod; 85. Stirring shaft; 86. Stirring blade; 87. Driving wheel; 88. Driven wheel; 89. Transmission belt; 91. Feeding port; 92. Discharge pipe; 101. Support plate; 102. Smoke exhaust fan; 103. Filter box; 104. Filter net; 105. Processing pipe; 111. Scraper; 112. Guide top; 113. Inspection port. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] See also Figure 1-Figure 6The utility model provides a technical solution: a high-efficiency melting device for reprocessing waste plastics, comprising a processing box 1, a melting tank 2 is fixedly connected to the middle of the processing box 1, a heater 3 is arranged at the bottom of the processing box 1, the heater 3 is in contact with the bottom of the melting tank 2, a storage tank 4 is fixedly connected to the top of the melting tank 2, a feeding port 5 is arranged at the bottom of the storage tank 4, the feeding port 5 is connected and matched with the melting tank 2, a flue gas waste heat recovery mechanism 6 is arranged on the side wall of the storage tank 4, a closing mechanism 7 is arranged on the side wall of the feeding port 5, and a stirring mechanism 8 is arranged in the middle of the melting tank 2;

[0032] The flue gas waste heat recovery mechanism 6 includes a heat preservation cover 61, a spiral heat exchange tube 62, a smoke exhaust pipe 63, a liquid adding pipe 64 and a smoke outlet pipe 65. The heat preservation cover 61 is fixedly connected to the side wall of the storage tank 4, the spiral heat exchange tube 62 is arranged on the inner wall of the heat preservation cover 61, the smoke exhaust pipe 63 is through-set at the top of the melting tank 2 and is through-connected with the spiral heat exchange tube 62, the liquid adding pipe 64 is arranged at the top of the heat preservation cover 61, and the smoke outlet pipe 65 is arranged on the side wall of the heat preservation cover 61 and is through-matched with the top of the spiral heat exchange tube 62.

[0033] In this embodiment: by setting a processing box 1, a melting tank 2, a heater 3, a storage tank 4, a feeding port 5, a flue gas waste heat recovery mechanism 6, a closing mechanism 7 and a stirring mechanism 8, when in use, the closing mechanism 7 can control the amount of the crushed plastic raw material added through the feeding port 5, the flue gas waste heat recovery mechanism 6 can recover the waste heat of the waste gas generated when the plastic is melted, and the heat in the waste gas is used to preheat the plastic to be melted through heat transfer, which can improve the efficiency of plastic melting, and the stirring mechanism 8 is used to stir the plastic raw materials in the melting tank 2 and the storage tank 4, which can speed up the melting efficiency of the plastic in the melting tank 2, and make the plastic raw materials in the storage tank 4 be evenly heated; by setting a heat preservation cover 61, The spiral heat exchange tube 62, the smoke exhaust pipe 63, the liquid adding pipe 64 and the smoke outlet pipe 65, and the heat preservation cover 61 provide heat preservation and protection for the storage tank 4. A large amount of waste gas will be generated when the plastic is heated and melted inside the melting tank 2. The waste gas flows into the spiral heat exchange tube 62 through the smoke exhaust pipe 63 and is discharged through the smoke outlet pipe 65. Heat exchange liquid is added between the heat preservation cover 61 and the storage tank 4 through the liquid adding pipe 64. Due to the heat transfer effect, the heat in the waste gas heats the heat exchange liquid. The heat exchange liquid preheats the plastic raw material inside the storage tank 4 through heat transfer, so that the plastic can be heated to a certain extent, and can enter the melting tank 2 for rapid melting processing. In this way, the waste heat recovery of the waste gas is realized, and the efficiency of the plastic melting processing is improved.

[0034] As a technical optimization solution of the utility model, the closing mechanism 7 includes a mounting cover 71, an electric telescopic rod 72 and a closing block 73. The mounting cover 71 is fixedly connected to the side wall of the feeding port 5, the electric telescopic rod 72 is bolted to the side wall of the mounting cover 71, and the closing block 73 is fixedly connected to the output end of the electric telescopic rod 72. The closing block 73 is movably arranged inside the mounting cover 71 and the side wall is in contact with the inner wall of the feeding port 5.

[0035] In this embodiment: by setting up the installation cover 71, the electric telescopic rod 72 and the closing block 73, when in use, by starting the electric telescopic rod 72 to push and pull the closing block 73 to move inside the installation cover 71, the closing block 73 can close the feeding port 5, so as to achieve the effect of controlling the feeding amount of the crushed plastic raw material inside the storage tank 4.

[0036] As a technical optimization solution of the utility model, the stirring mechanism 8 includes a mounting frame 81, a motor 82, a stirring shaft 83, a stirring rod 84, a stirring shaft 85, a stirring blade 86, a driving wheel 87, a driven wheel 88 and a transmission belt 89. The mounting frame 81 is fixedly connected to the top of the melting tank 2, the motor 82 is bolted to the top surface of the mounting frame 81, the stirring shaft 83 is fixedly connected to the output end of the motor 82 and is connected to the mounting frame 81 and the melting tank 2 bearings, a plurality of stirring rods 84 are equidistantly arranged on the side wall of the stirring shaft 83, the stirring shaft 85 is bearing-connected to the middle part of the storage tank 4, a plurality of stirring blades 86 are equidistantly arranged on the side wall of the stirring shaft 85, the driving wheel 87 is fixedly connected to the side wall of the stirring shaft 83, the driven wheel 88 is fixedly connected to the side wall of the stirring shaft 85, and the transmission belt 89 is arranged on the side walls of the driving wheel 87 and the driven wheel 88.

[0037] In this embodiment: by setting a mounting frame 81, a motor 82, a stirring shaft 83, a stirring rod 84, a stirring shaft 85, a stirring blade 86, a driving wheel 87, a driven wheel 88 and a transmission belt 89, when in use, the motor 82 is started to drive the stirring shaft 83 to rotate, and the stirring rod 84 stirs the plastic inside the melting tank 2, which can speed up the melting efficiency of the plastic inside the melting tank 2, and the driving wheel 87 rotates with the stirring shaft 83, and drives the driven wheel 88 to rotate through the transmission belt 89. At this time, the stirring shaft 85 rotates, and the stirring blade 86 stirs the raw materials inside the storage tank 4, so that the plastic raw materials inside the storage tank 4 are evenly heated.

[0038] As a technical optimization solution of the present utility model, a feed port 91 is provided at the top of the storage tank 4 , and a discharge pipe 92 is provided at the bottom of the melting tank 2 .

[0039] In this embodiment, by providing the feed port 91 and the discharge pipe 92 , the raw materials can be easily added into the storage tank 4 , and the melted plastic can be easily discharged.

[0040] As a technical optimization solution of the utility model, a support plate 101 is fixedly connected to the side wall of the heat preservation cover 61, a smoke extractor 102 is bolted to the top surface of the support plate 101, the smoke extraction end of the smoke extractor 102 cooperates with the smoke outlet pipe 65, a filter box 103 is fixedly connected to the top surface of the support plate 101, the filter box 103 is through-fitted with the smoke exhaust end of the smoke extractor 102, two groups of filter nets 104 are arranged in the middle of the filter box 103, and a treatment pipe 105 is arranged on the side wall of the filter box 103.

[0041] In this embodiment: by setting up a support plate 101, a smoke extractor 102, a filter box 103, a filter screen 104 and a treatment tube 105, the smoke extractor 102 is started to extract the exhaust gas inside the spiral heat exchange tube 62 through the smoke outlet pipe 65, and the exhaust gas is discharged into the filter box 103. The two filter screens 104 filter the exhaust gas and discharge it through the treatment tube 105. In this way, the filtering treatment of the smoke is achieved.

[0042] As a technical optimization solution of the present invention, three scrapers 111 are fixedly connected to the bottom of the stirring shaft 83 , and the scrapers 111 are in contact with the inner wall of the melting tank 2 .

[0043] In this embodiment, a scraper 111 is provided, and the scraper 111 rotates along with the stirring shaft 83 to scrape the bottom of the melting tank 2 , thereby preventing the melted raw materials from remaining at the bottom of the melting tank 2 .

[0044] As a technical optimization solution of the utility model, a guide top 112 is fixedly connected to the inner top wall of the melting tank 2, the top of the guide top 112 cooperates with the smoke exhaust pipe 63, the stirring shaft 83 is connected to the bearing of the guide top 112, and the feeding port 5 penetrates to the bottom of the guide top 112.

[0045] In this embodiment, the guide top 112 is provided to facilitate the exhaust gas to enter the smoke exhaust pipe 63 .

[0046] As a technical optimization solution of the present invention, inspection openings 113 are provided on both side walls of the processing box 1 .

[0047] In this embodiment, the inspection port 113 is provided to facilitate inspection of the interior of the processing box 1 .

[0048] Working principle: First, the plastic raw material after crushing enters the storage tank 4 through the feed port 91, and the closing block 73 is pushed and pulled by starting the electric telescopic rod 72 to move inside the mounting cover 71. The closing block 73 can close the feed port 5. When the closing block 73 enters the inside of the mounting cover 71, the raw material enters the inside of the melting tank 2 from the feed port 5, and the heater 3 heats the melting tank 2. The motor 82 is started to drive the stirring shaft 83 to rotate, and the stirring rod 84 stirs the plastic inside the melting tank 2, which can speed up the melting efficiency of the plastic inside the melting tank 2. The heat preservation cover 61 insulates the storage tank 4. When the plastic is heated and melted, a large amount of waste gas will be generated inside the melting tank 2. The waste gas enters the spiral heat exchange tube 62 through the exhaust pipe 63 and flows through the smoke outlet pipe 65. It is discharged through the liquid adding pipe 64 to the heat preservation cover 61 and the storage tank 4. Heat exchange liquid is added in between. Due to the heat transfer effect, the heat in the exhaust gas heats the heat exchange liquid. The heat exchange liquid preheats the plastic raw material inside the storage tank 4 through heat transfer, so that the plastic can be heated to a certain extent. The smoke extractor 102 is started to extract the exhaust gas inside the spiral heat exchange tube 62 through the smoke outlet pipe 65, and the exhaust gas is discharged into the filter box 103. The two filter screens 104 filter the exhaust gas and discharge it through the treatment pipe 105. The driving wheel 87 rotates with the stirring shaft 83 and drives the driven wheel 88 to rotate through the transmission belt 89. At this time, the stirring shaft 85 rotates, and the stirring blades 86 stir the raw materials inside the storage tank 4, so that the plastic raw materials inside the storage tank 4 are evenly heated. In this way, the waste heat of the exhaust gas can be recovered, the plastic to be melted can be heated by preheating the exhaust gas, and the exhaust gas can be filtered.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency melting device for reprocessing waste plastics, comprising a processing box (1), characterized in that: The middle of the processing box (1) is fixedly connected to a melting tank (2); a heater (3) is provided at the bottom of the processing box (1), the heater (3) is in contact with the bottom of the melting tank (2); a storage tank (4) is fixedly connected to the top of the melting tank (2); a feeding port (5) is provided at the bottom of the storage tank (4), the feeding port (5) is in communication with the melting tank (2); a flue gas waste heat recovery mechanism (6) is provided on the side wall of the storage tank (4), a closing mechanism (7) is provided on the side wall of the feeding port (5); and a stirring mechanism (8) is provided in the middle of the melting tank (2); The flue gas waste heat recovery mechanism (6) comprises a heat-insulating cover (61), a spiral heat exchange tube (62), a smoke exhaust pipe (63), a liquid adding pipe (64) and a smoke outlet pipe (65); the heat-insulating cover (61) is fixedly connected to the side wall of the storage tank (4); the spiral heat exchange tube (62) is arranged on the inner wall of the heat-insulating cover (61); the smoke exhaust pipe (63) is arranged through the top of the melting tank (2) and is connected to the spiral heat exchange tube (62); the liquid adding pipe (64) is arranged on the top of the heat-insulating cover (61); and the smoke outlet pipe (65) is arranged on the side wall of the heat-insulating cover (61) and is connected to the top of the spiral heat exchange tube (62).

2. The high-efficiency melting device for recycling waste plastics according to claim 1, characterized in that: The closing mechanism (7) comprises a mounting cover (71), an electric telescopic rod (72) and a closing block (73); the mounting cover (71) is fixedly connected to the side wall of the feeding port (5); the electric telescopic rod (72) is bolted to the side wall of the mounting cover (71); the closing block (73) is fixedly connected to the output end of the electric telescopic rod (72); the closing block (73) is movably arranged inside the mounting cover (71) and the side wall is in contact with the inner wall of the feeding port (5).

3. The high-efficiency melting device for recycling waste plastics according to claim 1 is characterized in that: The stirring mechanism (8) comprises a mounting frame (81), a motor (82), a stirring shaft (83), a stirring rod (84), a stirring shaft (85), a stirring blade (86), a driving wheel (87), a driven wheel (88) and a transmission belt (89); the mounting frame (81) is fixedly connected to the top of the melting tank (2); the motor (82) is bolted to the top surface of the mounting frame (81); the stirring shaft (83) is fixedly connected to the output end of the motor (82) and is connected to the mounting frame (81) and the shaft of the melting tank (2). The stirring shaft (83) is connected to the stirring shaft (83) by a bearing, a plurality of stirring rods (84) are arranged at equal intervals on the side wall of the stirring shaft (83), a bearing of the stirring shaft (85) is connected to the middle part of the storage tank (4), a plurality of stirring blades (86) are arranged at equal intervals on the side wall of the stirring shaft (85), the driving wheel (87) is fixedly connected to the side wall of the stirring shaft (83), the driven wheel (88) is fixedly connected to the side wall of the stirring shaft (85), and the transmission belt (89) is arranged on the side walls of the driving wheel (87) and the driven wheel (88).

4. The high-efficiency melting device for recycling waste plastics according to claim 1 is characterized in that: The top of the material storage tank (4) is provided with a material feed port (91), and the bottom of the melting tank (2) is provided with a material discharge pipe (92).

5. The high-efficiency melting device for recycling waste plastics according to claim 1 is characterized in that: A support plate (101) is fixedly connected to the side wall of the heat-insulating cover (61); a smoke extractor (102) is bolted to the top surface of the support plate (101); a smoke extraction end of the smoke extractor (102) cooperates with a smoke outlet pipe (65); a filter box (103) is fixedly connected to the top surface of the support plate (101); the filter box (103) is in communication with the smoke exhaust end of the smoke extractor (102); two groups of filter screens (104) are arranged in the middle of the filter box (103); and a treatment pipe (105) is arranged on the side wall of the filter box (103).

6. The high-efficiency melting device for recycling waste plastics according to claim 3 is characterized by: Three scrapers (111) are fixedly connected to the bottom of the stirring shaft (83), and the scrapers (111) are in contact with the inner wall of the melting tank (2).

7. The high-efficiency melting device for recycling waste plastics according to claim 3 is characterized in that: A guide top (112) is fixedly connected to the inner top wall of the melting tank (2), the top of the guide top (112) cooperates with the smoke exhaust pipe (63), the stirring shaft (83) is connected to the bearing of the guide top (112), and the feeding port (5) penetrates to the bottom of the guide top (112).

8. The high-efficiency melting device for recycling waste plastics according to claim 1 is characterized in that: Inspection openings (113) are provided on both side walls of the processing box (1).

Images