Tunnel type waste plastic recovery hot air drying mechanism convenient to convey

Abstract

The utility model discloses a tunnel type convenient-to-convey waste plastic recovery hot air drying mechanism which comprises a rack, a mesh belt conveyor is fixedly installed on the inner wall of the rack, a positioning mechanism is installed on one side of the top end of the rack, a machine shell is fixedly connected to the other side of the top end of the rack, and air cylinders are fixedly installed on the two sides of the top end of the machine shell. The bottom ends of the two air cylinders penetrate through the inner wall of the machine shell to be fixedly connected with a mounting base, the top of the inner wall of the mounting base is rotationally connected with a crankshaft through a first bearing, the bottom of the inner wall of the mounting base is rotationally connected with an air distribution pipe through a second bearing, and the bottom of the air distribution pipe evenly and fixedly communicates with a plurality of nozzles. According to the tunnel type waste plastic recovery hot air drying mechanism convenient to convey, the nozzles can be driven to swing left and right, the distance between the nozzles and waste plastic can be adjusted, the drying area can be increased, the accuracy of the drying temperature can be guaranteed, and the positioning mechanism is arranged, so that the waste plastic cannot deviate when being placed on the mesh belt by a worker.

Description

Technical Field

[0001] The utility model relates to the technical field of hot air drying mechanisms, in particular to a tunnel-type hot air drying mechanism for recycling waste plastics which is convenient for transportation. Background Art

[0002] Waste plastic recycling is to reduce environmental pollution and convert it into reusable resources by recycling, sorting, cleaning and reprocessing waste plastics.

[0003] After cleaning the waste plastics, they need to be dried. However, the existing tunnel-type hot air drying mechanism for waste plastic recycling has the following disadvantages:

[0004] Existing tunnel-type hot air drying mechanisms often have multiple nozzles inside, which blow hot air to dry the waste plastics on the conveyor. However, these nozzles are often fixed and cannot be adjusted in height or swung according to the different shapes of the waste plastics, resulting in uneven drying.

[0005] The existing tunnel-type hot air drying mechanism lacks a positioning structure for the waste plastics placed on the conveyor. Workers are prone to placing the waste plastics in an offset manner, resulting in inaccurate drying position and affecting the drying effect. Utility Model Content

[0006] The purpose of the utility model is to provide a tunnel-type hot air drying mechanism for recycling waste plastics that is easy to transport, so as to solve the problem proposed in the above background technology that a plurality of nozzles are often arranged inside the existing tunnel-type hot air drying mechanism to blow hot air to dry the waste plastics on the conveyor, but these nozzles are often fixed and cannot be adjusted in height or swung according to the different shapes of the waste plastics, which easily leads to uneven drying. The tunnel-type hot air drying mechanism lacks a positioning structure for the waste plastics placed on the conveyor, so workers are likely to place the waste plastics offset, resulting in inaccurate drying position and affecting the drying effect.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tunnel-type hot air drying mechanism for recycling waste plastics that is easy to transport, comprising a frame, a mesh belt conveyor fixedly installed on the inner wall of the frame, a positioning mechanism installed on one side of the top of the frame, and a casing fixedly connected to the other side of the top of the frame, a cylinder fixedly installed on both sides of the top of the casing, the bottom ends of the two cylinders pass through the inner wall of the casing and are fixedly connected to a mounting seat, the top of the inner wall of the mounting seat is rotatably connected to a crankshaft through bearing 1, the bottom of the inner wall of the mounting seat is rotatably connected to an air distribution pipe through bearing 2, the bottom of the air distribution pipe is evenly fixedly connected to a number of nozzles, connecting rods are rotatably connected on both sides of the crankshaft surface, the bottom ends of the two connecting rods are rotatably connected to the two sides of the top of the air distribution pipe, and a motor 1 is fixedly installed on the top of one end of the mounting seat.

[0008] When using a tunnel-type hot air drying mechanism for recycling waste plastics that is easy to transport, the present technical solution can drive the nozzle to swing left and right and adjust the distance between the nozzle and the waste plastics, thereby increasing the drying area and ensuring the accuracy of the drying temperature. A positioning mechanism is provided to prevent workers from offsetting the waste plastics when placing them on the mesh belt.

[0009] As a preferred technical solution of the present invention, a heating box is fixedly connected to the middle of the top of the housing, a fan is fixedly installed on the top of the heating box, an electric heater is fixedly installed on the inner wall of the heating box, a telescopic tube is fixedly connected to the bottom of the heating box, and the bottom end of the telescopic tube passes through the inner wall of the housing and is fixedly connected to the air distribution duct, an air suction hood is fixedly connected to the middle of the front of the frame, a dehumidification box is fixedly connected to the front of the housing, and a heat exchanger is fixedly installed on the top of the inner wall of the dehumidification box. The fan and electric heater are used to generate hot air for drying waste plastics.

[0010] As a preferred technical solution of the present invention, a filter is engaged with the inner wall of the air suction hood, a first air duct is fixedly connected to the top of the air suction hood, and the top of the first air duct is fixedly connected to the bottom of the dehumidification box, a second air duct is fixedly connected to the top of the dehumidification box, and one end of the second air duct is fixedly connected to the input end of the fan, and the output end of the fan is connected to the interior of the heating box, and a water receiving tray is plugged into the bottom of the dehumidification box. The water receiving tray is used to receive falling condensed water.

[0011] As a preferred technical solution of the present invention, the output end of the motor 1 is fixedly connected to one end of the crankshaft, and the crankshaft is driven to rotate by the motor 1.

[0012] As a preferred technical solution of the utility model, the positioning mechanism includes a mounting frame, a lead screw, a second motor, two travel blocks, and two positioning plates. The mounting frame is fixedly connected to the top of the frame. The top of the inner wall of the mounting frame is rotatably connected to the lead screw via a third bearing. The lead screw surface is threadedly connected to the travel blocks on both sides. The bottom ends of the two travel blocks are fixedly connected to the positioning plates. The top of the front of the mounting frame is fixedly mounted with the second motor, and the output end of the second motor is fixedly connected to one end of the lead screw. The positioning mechanism can prevent the placement of waste plastic on the mesh belt from deviating.

[0013] As a preferred technical solution of the present invention, the threads on both sides of the lead screw surface are in opposite directions, the top ends of the two travel blocks are fixedly connected to guide blocks, the top end of the inner wall of the mounting frame is fixedly connected to a guide rail, and the top ends of the two guide blocks are slidably connected to the guide rail. The guide blocks and guide rail serve to guide the movement of the travel blocks.

[0014] As a preferred technical solution of the present invention, one end of the positioning plate is provided with an inclined portion, which facilitates the correction of the position of the waste plastic.

[0015] As a preferred technical solution of the present invention, the bottoms of both ends of the housing are provided with openings, and the openings on both sides are used for the entry and exit of waste plastics.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] By starting the cylinder, the nozzles at the mounting base are driven to move up and down. The distance between the nozzles and the nozzles can be adjusted according to the shape of the waste plastics to ensure the accuracy of the drying temperature. By starting the motor to drive the crankshaft to rotate, the setting of the connecting rod can drive the air distribution duct below and the nozzles at the bottom to swing left and right, which can increase the drying area, dry the waste plastics more evenly, and recycle the heat during drying, which is more energy-saving.

[0018] 2. The tunnel-type hot air drying mechanism is equipped with a positioning mechanism at the mesh belt conveyor. By starting the second motor to drive the screw to rotate, it can eventually drive the travel blocks on both sides and the positioning plate below to move in opposite directions. The distance between the two positioning plates can be adjusted according to the width of the waste plastics. When workers place them on the mesh belt, there will be no deviation, so that the drying position is accurate and the drying effect is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is a rear cross-sectional view of the present utility model;

[0021] Figure 3 This is a cross-sectional view of the mounting seat of the utility model;

[0022] Figure 4 This is a cross-sectional view of the heating box of the utility model;

[0023] Figure 5 It is a side sectional view of the positioning mechanism of the utility model;

[0024] Figure 6 This is a cross-sectional view of the dehumidification box of the utility model.

[0025] In the figure: 1. Frame; 2. Mesh belt conveyor; 3. Casing; 4. Opening; 5. Cylinder; 6. Mounting seat; 7. Air distribution duct; 8. Nozzle; 9. Motor 1; 10. Crankshaft; 11. Connecting rod; 12. Heating box; 13. Fan; 14. Telescopic tube; 15. Electric heater; 16. Filter; 17. Positioning mechanism; 171. Mounting frame; 172. Screw; 173. Motor 2; 174. Travel block; 175. Positioning plate; 18. Guide block; 19. Guide rail; 20. Bevel; 21. Suction hood; 22. Air duct 1; 23. Dehumidification box; 24. Air duct 2; 25. Heat exchanger; 26. Drain tray. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-6 The utility model provides a tunnel-type hot air drying mechanism for recycling waste plastics that is easy to transport, including a frame 1, a mesh belt conveyor 2 is fixedly installed on the inner wall of the frame 1, a positioning mechanism 17 is installed on one side of the top of the frame 1, and the other side of the top of the frame 1 is fixedly connected to the casing 3. Cylinders 5 are fixedly installed on both sides of the top of the casing 3, and the bottom ends of the two cylinders 5 pass through the inner wall of the casing 3 and are fixedly connected to a mounting seat 6, which can be driven to move up and down. The top of the inner wall of the mounting seat 6 is rotatably connected to a crankshaft 10 through a bearing 1, and the bottom of the inner wall of the mounting seat 6 is rotatably connected to an air distribution pipe 7 through a bearing 2. The bottom of the air distribution pipe 7 is evenly fixedly connected to a plurality of nozzles 8 for evenly blowing out hot air. Connecting rods 11 are rotatably connected on both sides of the surface of the crankshaft 10, which play a transmission role. The bottom ends of the two connecting rods 11 are rotatably connected to the two sides of the top of the air distribution pipe 7, and a motor 9 is fixedly installed on the top of one end of the mounting seat 6.

[0028] During use, the cylinder 5 is started to drive the nozzles 8 at the mounting seat 6 to move up and down. The distance between the nozzles 8 and the nozzles 8 can be adjusted according to the shape of the waste plastics to ensure the accuracy of the drying temperature. The crankshaft 10 is driven to rotate by starting the motor 9. In conjunction with the setting of the connecting rod 11, the air distribution duct 7 below and the nozzles 8 at the bottom can be driven to swing left and right, which can increase the drying area and make the waste plastics more evenly dried.

[0029] The middle of the top of the casing 3 is fixedly connected to a heating box 12, a fan 13 is fixedly installed on the top of the heating box 12, an electric heater 15 is fixedly installed on the inner wall of the heating box 12 for heating, the bottom end of the heating box 12 is fixedly connected to a telescopic tube 14, and the bottom end of the telescopic tube 14 passes through the inner wall of the casing 3 and is fixedly connected to the air distribution duct 7, the middle of the front of the frame 1 is fixedly connected to a suction hood 21, the front of the casing 3 is fixedly connected to a dehumidification box 23, and a heat exchanger 25 is fixedly installed on the top of the inner wall of the dehumidification box 23 for dehumidification and suction. The inner wall of the cover 21 is engaged with a filter 16, which plays a filtering role. The top of the suction cover 21 is fixedly connected to the air duct 1 22, and the top of the air duct 1 22 is fixedly connected to the bottom of the dehumidification box 23. The top of the dehumidification box 23 is fixedly connected to the air duct 2 24, and one end of the air duct 24 is fixedly connected to the input end of the fan 13, and the output end of the fan 13 is connected to the interior of the heating box 12. The bottom of the dehumidification box 23 is connected with a water receiving tray 26 for receiving condensed water. The output end of the motor 19 is fixedly connected to one end of the crankshaft 10 for driving.

[0030] During use, the motor 9 drives the crankshaft 10 to rotate, and finally drives the nozzle 8 to swing. The telescopic tube 14 can be extended and retracted according to the lifting of the mounting seat 6. After the waste plastic enters the casing 3 with the operation of the mesh belt, the hot air is transported from the telescopic tube 14 to the air distribution pipe 7 by starting the fan 13 and the electric heater 15, and is sprayed out from several nozzles 8 below, which has a drying effect on the waste plastic. The hot air used for drying is sent into the dehumidification box 23 through the suction hood 21 and the air duct 1 22, and the moisture therein is condensed and dehumidified through the heat exchanger 25, and then returned to the heating box 12 through the air duct 2 24 for recycling, which can recycle heat and save energy. The filter 16 can prevent dust and debris from being sucked into the pipeline, and the water receiving tray 26 is used to collect dripping condensed water.

[0031] The positioning mechanism 17 includes a mounting frame 171, a lead screw 172, a motor 173, two travel blocks 174 and two positioning plates 175. The mounting frame 171 is fixedly connected to the top of the frame 1. The top of the inner wall of the mounting frame 171 is rotatably connected to the lead screw 172 through the bearing 3. Both sides of the surface of the lead screw 172 are threadedly connected to the travel blocks 174. The bottom ends of the two travel blocks 174 are fixedly connected to the positioning plates 175 for limiting the placement of waste plastics. The top of the front of the mounting frame 171 is fixed. Motor 2 173 is installed, and the output end of motor 2 173 is fixedly connected to one end of the screw 172. The threads on both sides of the surface of the screw 172 are in opposite directions. The top ends of the two travel blocks 174 are fixedly connected to the guide blocks 18. The top end of the inner wall of the mounting frame 171 is fixedly connected to the guide rail 19, and the tops of the two guide blocks 18 are slidably connected to the guide rail 19 to play a guiding role. One end of the positioning plate 175 is provided with an inclined portion 20, and the bottoms of both ends of the casing 3 are provided with openings 4 to provide entry and exit space.

[0032] When in use, the tunnel-type hot air drying mechanism is provided with a positioning mechanism 17 at the mesh belt conveyor 2, and the screw 172 is driven to rotate by starting the second motor 173. Since the two sides of the surface of the screw 172 have opposite thread directions, and under the guidance of the guide block 18 and the guide rail 19, the travel blocks 174 on both sides and the lower positioning plate 175 will move in opposite directions, so that the distance between the two positioning plates 175 can be adjusted according to the width of the waste plastic. The workers will not deviate when placing it on the mesh belt. The inclined portion 20 is provided to facilitate the correction of the position of the waste plastic. The waste plastic will enter the casing 3 through the opening 4 for drying.

[0033] When used specifically, the utility model is a tunnel-type hot air drying mechanism for recycling waste plastics that is easy to transport. The waste plastics to be dried are placed on the mesh belt of the mesh belt conveyor 2 for transportation. The tunnel-type hot air drying mechanism is provided with a positioning mechanism 17 at the mesh belt conveyor 2. By starting the second motor 173, the screw 172 is driven to rotate. Since the two sides of the screw 172 have opposite thread directions, and under the guidance of the guide block 18 and the guide rail 19, the travel blocks 174 on both sides and the lower positioning plate 175 will move in opposite directions, so that the distance between the two positioning plates 175 can be adjusted according to the width of the waste plastics. When the workers place them on the mesh belt, there will be no deviation, so that the drying position is accurate and the drying effect is guaranteed. After the waste plastics enter the housing 3 with the operation of the mesh belt, they are started and The dynamic fan 13 and the electric heater 15 transport the hot air from the telescopic tube 14 to the air distribution duct 7, and spray it out from the several nozzles 8 below, which has the effect of drying the waste plastics. The hot air used for drying is sent to the dehumidification box 23 through the suction hood 21 and the air duct 1 22, and the moisture therein is condensed and dehumidified through the heat exchanger 25, and then returned to the heating box 12 through the air duct 24 for recycling, which can recycle heat and save energy. By starting the cylinder 5, the several nozzles 8 at the mounting seat 6 are driven to move up and down, and the distance between the nozzles 8 and the nozzles 8 can be adjusted according to the shape of the waste plastics to ensure the accuracy of the drying temperature. By starting the motor 1 9 to drive the crankshaft 10 to rotate, and in conjunction with the setting of the connecting rod 11, the lower air distribution duct 7 and the several nozzles 8 at the bottom can be driven to swing left and right, which can increase the drying area and make the waste plastics dry more evenly.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tunnel-type hot air drying mechanism for recycling waste plastics that is easy to transport, comprising a frame (1), characterized in that: A mesh belt conveyor (2) is fixedly mounted on the inner wall of the frame (1), a positioning mechanism (17) is mounted on one side of the top of the frame (1), and a housing (3) is fixedly connected to the other side of the top of the frame (1). Cylinders (5) are fixedly mounted on both sides of the top of the housing (3), and the bottom ends of the two cylinders (5) pass through the inner wall of the housing (3) and are fixedly connected to a mounting base (6). The top of the inner wall of the mounting base (6) is rotatably connected to a crankshaft (10) through a bearing 1, and the bottom of the inner wall of the mounting base (6) is rotatably connected to an air distribution pipe (7) through a bearing 2. The bottom of the air distribution pipe (7) is evenly fixedly connected to a plurality of nozzles (8). Connecting rods (11) are rotatably connected to both sides of the surface of the crankshaft (10), and the bottom ends of the two connecting rods (11) are rotatably connected to both sides of the top of the air distribution pipe (7). A motor 1 (9) is fixedly mounted on the top of one end of the mounting base (6).

2. The tunnel-type hot air drying mechanism for recycling waste plastics that is convenient for transportation according to claim 1 is characterized by: A heating box (12) is fixedly connected to the middle of the top of the casing (3), a fan (13) is fixedly installed on the top of the heating box (12), an electric heater (15) is fixedly installed on the inner wall of the heating box (12), a telescopic tube (14) is fixedly connected to the bottom of the heating box (12), and the bottom end of the telescopic tube (14) passes through the inner wall of the casing (3) and is fixedly connected to the air distribution duct (7), an air suction hood (21) is fixedly connected to the middle of the front of the frame (1), a dehumidification box (23) is fixedly connected to the front of the casing (3), and a heat exchanger (25) is fixedly installed on the top of the inner wall of the dehumidification box (23).

3. The tunnel-type hot air drying mechanism for recycling waste plastics that is convenient for transportation according to claim 2 is characterized by: The inner wall of the air suction hood (21) is engaged with a filter (16), the top of the air suction hood (21) is fixedly connected to an air duct 1 (22), and the top of the air duct 1 (22) is fixedly connected to the bottom of the dehumidification box (23), the top of the dehumidification box (23) is fixedly connected to an air duct 2 (24), and one end of the air duct 2 (24) is fixedly connected to the input end of the fan (13), the output end of the fan (13) is connected to the interior of the heating box (12), and the bottom of the dehumidification box (23) is plugged with a water receiving tray (26).

4. The tunnel-type hot air drying mechanism for recycling waste plastics that is convenient for transportation according to claim 1 is characterized by: The output end of the motor 1 (9) is fixedly connected to one end of the crankshaft (10).

5. The tunnel-type hot air drying mechanism for recycling waste plastics that is convenient for transportation according to claim 1 is characterized by: The positioning mechanism (17) includes a mounting frame (171), a lead screw (172), a second motor (173), two travel blocks (174) and two positioning plates (175), wherein the mounting frame (171) is fixedly connected to the top of the frame (1), the top of the inner wall of the mounting frame (171) is rotatably connected to the lead screw (172) through a third bearing, both sides of the surface of the lead screw (172) are threadedly connected to the travel blocks (174), the bottom ends of the two travel blocks (174) are fixedly connected to the positioning plates (175), the top of the front face of the mounting frame (171) is fixedly mounted with the second motor (173), and the output end of the second motor (173) is fixedly connected to one end of the lead screw (172).

6. The tunnel-type hot air drying mechanism for recycling waste plastics that is convenient for transportation according to claim 5 is characterized by: The threads on both sides of the surface of the lead screw (172) are in opposite directions, the top ends of the two travel blocks (174) are fixedly connected to guide blocks (18), the top end of the inner wall of the mounting frame (171) is fixedly connected to a guide rail (19), and the top ends of the two guide blocks (18) are slidably connected to the guide rail (19).

7. The tunnel-type hot air drying mechanism for recycling waste plastics that is convenient for transportation according to claim 5 is characterized by: One end of the positioning plate (175) is provided with an inclined portion (20).

8. The tunnel-type hot air drying mechanism for recycling waste plastics that is convenient for transportation according to claim 1 is characterized by: Openings (4) are provided at the bottoms of both ends of the casing (3).

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