Multi-layer belt type drying device for amino molding plastic

Abstract

The utility model relates to the technical field of amino molding plastic processing, and provides an amino molding plastic multi-layer belt type drying device which comprises a box body, a plurality of conveying belts are arranged in the box body in a high-low staggered mode, a discharging port is formed in the side end of the box body, and a discharging plate is fixedly connected to the discharging port. A material distributing structure for separating the interior of the box body from being communicated with the outside is arranged in the feeding hopper, and an interval discharging structure for separating the interior of the box body from being communicated with the outside is arranged at the position, corresponding to the discharging plate, of the box body. According to the device, the spaced discharging structure and the material distributing structure are arranged, material distributing blades are clamped at the input port of the box body to isolate the outside, heat loss of the input end is reduced, a second heat preservation plate and a first heat preservation plate are arranged, the heat loss space is reduced, and a grooved wheel is clamped between the second heat preservation plate and the first heat preservation plate, so that heat loss is reduced. And the dried amino molding plastic is discharged through the grooved wheel, heat loss of the output end is reduced, the overall temperature in the box body is uniform, and the quality of finished products is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of amino molding plastic processing, in particular to a multi-layer belt drying device for amino molding plastic. Background Art

[0002] Amino molding plastic is a plastic material with special properties and uses. It is obtained by introducing amino groups into polymer molecules. Amino molding plastic is very sensitive to moisture, which will affect its polymerization reaction and performance. When preparing amino molding plastic, if there is moisture in the raw materials, it will cause problems in the polymerization reaction, such as slowing down the polymerization speed and unstable polymer structure. Therefore, the drying device can be used to remove moisture from the raw materials to ensure the normal progress of the polymerization reaction.

[0003] Currently, amino molding plastics are often dried by multi-layer belt drying devices, but the output and input ends of general multi-layer belt drying devices are usually open. However, amino molding plastics need to be dried at a uniform and stable temperature. The output and input ends of general multi-layer belt drying devices are open, which will cause heat loss at these two ends, resulting in temperature deviations at these two ends from other positions. Uneven drying will cause different shrinkage rates of plastics in different areas, resulting in dimensional inconsistency, which may lead to dimensional deviation or deformation of the finished product. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that the output end and the input end of a general multi-layer belt drying device are openly arranged, which causes heat loss at these two ends, thereby causing the temperature at these two ends to deviate from that at other positions, and the uneven drying may cause the shrinkage rate of the plastic in different areas to be different, thereby causing dimensional inconsistency, which may lead to dimensional deviation or deformation of the finished product.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multi-layer belt drying device for amino molding plastics, including a box body, a plurality of conveyor belts are arranged in a staggered manner at high and low levels inside the box body, a feed hopper is fixedly connected to the upper end of the box body, a discharge port is opened at the side end of the box body, a discharge plate is fixedly connected to the discharge port, a material dividing structure for connecting the interior of the box body with the outside world is arranged in the feed hopper, a partition discharge structure for connecting the interior of the box body with the outside world is arranged at the corresponding discharge plate of the box body, and heat loss is reduced at the connection between the partition box body and the outside world.

[0006] As a preferred embodiment, an installation cavity is opened in the middle of the feed hopper, and the material dividing structure includes a driving shaft rotatably connected to the inside of the installation cavity, a plurality of material dividing blades are fixedly connected to the outer peripheral surface of the driving shaft, and the outer end surfaces of the material dividing blades are tangent to the inner wall of the installation cavity. A driving motor for driving the driving shaft to rotate is fixedly connected to the outer wall of the feed hopper, and the driving motor drives the material dividing blades to intermittently feed materials into the box.

[0007] As a preferred embodiment, the interval discharging structure includes a first insulation plate and a second insulation plate fixedly connected inside a box body, a rotating shaft is rotatably connected between the first insulation plate and the second insulation plate in the box body, a groove wheel is provided on the outer periphery of the rotating shaft, the groove wheel is tangent to the outer side walls of the first insulation plate and the second insulation plate, a mounting seat is fixedly connected to the outer side wall of the box body, a driving motor for driving the rotating shaft to rotate is fixedly installed in the mounting seat, and intermittent discharging is achieved by the groove wheel.

[0008] As a preferred embodiment, a heating mechanism is provided at the lower end of the rear side wall of the box body, and the heating mechanism includes a main gas pipe, and a plurality of branch gas pipes are fixedly connected to the outer peripheral surface of the main gas pipe. The main gas pipe is connected to the interior of the box body through the branch gas pipes, and a dry environment is provided inside the box body through the heating mechanism.

[0009] As a preferred embodiment, an exhaust structure is provided at the top of the box, and the exhaust structure includes a main exhaust pipe, and a plurality of branch exhaust pipes are fixedly connected to the lower end of the main exhaust pipe. The main exhaust pipe is connected to the inside of the box through the branch exhaust pipes. By arranging the box in conjunction with the branch exhaust pipes, it is convenient to centrally process the gas in the box, and exhaust the inside of the box is achieved through the branch exhaust pipes.

[0010] As a preferred embodiment, a mounting plate is fixedly connected to the top of the box body, an exhaust fan is fixedly connected to the top of the mounting plate, and the input end of the exhaust fan is connected to the output end of the main exhaust pipe. The exhaust fan is provided to facilitate ventilation of the air in the box, and the ventilation rate is increased by the exhaust fan.

[0011] As a preferred embodiment, the output end of the exhaust fan is threadedly connected to a mounting frame, and a filter is embedded in the mounting frame. The filter is provided to prevent particulate matter generated during drying from being dispersed into the working environment.

[0012] As a preferred embodiment, three guide plates are fixedly connected in the box body, and the three guide plates are arranged corresponding to the input ends of the conveyor belt. The guide plates are arranged to prevent materials from being stuck in the gaps of the conveyor belt.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] The utility model provides an interval discharging structure and a material dividing structure, and isolates the input port of the box from the outside world by means of a material dividing blade card, thereby reducing the loss of heat at the input end; and reduces the space for heat loss by providing a second insulation plate and a first insulation plate; and then a groove wheel is carded between the second insulation plate and the first insulation plate, and the amino molding plastic after drying is discharged through the groove wheel, thereby reducing the loss of heat at the output end, making the overall temperature in the box uniform, and ensuring the quality of the finished product.

[0015] The utility model provides a heating mechanism at the lower end and an exhaust device at the top end, so that after the hot air absorbs and contains a sufficient amount of water vapor, the hot air containing moisture can be discharged through the exhaust fan, thereby ensuring that the hot air in the box is always dry. A filter is installed at the top of the exhaust fan to prevent particulate impurities generated during the drying process from being discharged together, thereby protecting the production environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of the front end of a multi-layer belt drying device for amino molding plastics provided by the utility model;

[0017] Figure 2 A three-dimensional structural schematic diagram of the rear end of a multi-layer belt drying device for amino molding plastic provided by the utility model;

[0018] Figure 3 A schematic diagram of the internal structure of a multi-layer belt drying device for amino molding plastics provided by the utility model;

[0019] Figure 4 The utility model provides a multi-layer belt drying device for amino molding plastics Figure 3 A partial enlarged view of point A in the middle.

[0020] Legend:

[0021] 1. Box body; 2. Discharge plate; 3. Exhaust fan; 4. Feed hopper; 5. Main exhaust pipe; 6. Branch exhaust pipe; 7. First insulation board; 8. Second insulation board; 9. Conveyor belt; 10. Groove wheel; 11. Rotating shaft; 12. Driving motor; 13. Mounting seat; 14. Main air supply pipe; 15. Mounting frame; 16. Driving motor; 17. Driving shaft; 18. Distributing blade; 19. Guide plate; 20. Branch air supply pipe; 21. Mounting plate; 22. Mounting cavity. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a multi-layer belt drying device for amino molding plastics, including a box body 1, in which a plurality of conveyor belts 9 are staggered in height, a feed hopper 4 is fixedly connected to the upper end of the box body 1, a discharge port is opened at the side end of the box body 1, a discharge plate 2 is fixedly connected to the discharge port, a dividing structure for separating the interior of the box body 1 and connecting it with the outside is arranged in the feed hopper 4, a partitioned discharge structure for separating the interior of the box body 1 and connecting it with the outside is arranged at the corresponding discharge plate 2 of the box body 1, and the movement direction of the plurality of conveyor belts 9 is from high to low for step-by-step transportation, and the heat loss at the output and input ends of the box body 1 is reduced through the partitioned discharge structure and the dividing structure, so that the overall temperature in the box body 1 is uniform, and the quality of the finished product is guaranteed.

[0024] like Figure 1-4 As shown, a mounting cavity 22 is provided in the middle of the feed hopper 4, and the material dividing structure includes a driving shaft 17 rotatably connected to the inside of the mounting cavity 22, and a plurality of material dividing blades 18 are fixedly connected to the outer peripheral surface of the driving shaft 17, and the outer end surfaces of the material dividing blades 18 are tangent to the inner wall of the mounting cavity 22, and a driving motor 16 for driving the driving shaft 17 to rotate is fixedly connected to the outer wall of the feed hopper 4. The material dividing blades 18 are stuck at the input port of the box body 1 to form an isolation from the outside world, thereby reducing the loss of heat at the input end.

[0025] like Figure 1-4 As shown, the interval discharging structure includes a first insulation board 7 and a second insulation board 8 fixedly connected to the inside of the box body 1, and a rotating shaft 11 is rotatably connected between the first insulation board 7 and the second insulation board 8 in the box body 1. A groove wheel 10 is sleeved on the outer periphery of the rotating shaft 11, and the groove wheel 10 is tangentially arranged between the outer side walls of the first insulation board 7 and the second insulation board 8. A mounting seat 13 is fixedly connected to the outer side wall of the box body 1, and a driving motor 12 for driving the rotating shaft 11 to rotate is fixedly installed in the mounting seat 13. By arranging the second insulation board 8 and the first insulation board 7 to reduce the space for heat loss, and then the groove wheel 10 is clamped between the second insulation board 8 and the first insulation board 7, the dried amino molding plastic is discharged through the groove wheel 10 to reduce the heat loss at the output end.

[0026] like Figure 1-4As shown, a heating mechanism is provided at the lower end of the rear side wall of the box body 1, and the heating mechanism includes a main gas pipe 14, and a plurality of branch gas pipes 20 are fixedly connected to the outer peripheral surface of the main gas pipe 14. The main gas pipe 14 is connected with the interior of the box body 1 through the branch gas pipes 20. When high-temperature gas is added into the main gas pipe 14, the high-temperature gas can be transferred to the interior of the box body 1 through the plurality of branch gas pipes 20, and the high-temperature gas is evenly distributed to provide drying conditions for the box body 1.

[0027] like Figure 1-4 As shown, an exhaust structure is provided at the top of the box body 1, and the exhaust structure includes a main exhaust pipe 5, and a plurality of branch exhaust pipes 6 are fixedly connected to the lower end of the main exhaust pipe 5. The main exhaust pipe 5 is connected to the inside of the box body 1 through the branch exhaust pipes 6. By arranging the box body 1 in conjunction with the branch exhaust pipes 6, it is convenient to centrally process the gas in the box body 1.

[0028] like Figure 1-4 As shown, a mounting plate 21 is fixedly connected to the top of the box body 1, and an exhaust fan 3 is fixedly connected to the top of the mounting plate 21. The input end of the exhaust fan 3 is connected to the output end of the main exhaust pipe 5. The exhaust fan 3 is provided to facilitate ventilation of the air in the box body 1.

[0029] like Figure 1-4 As shown, the output end of the exhaust fan 3 is threadedly connected to a mounting frame 15, and a filter screen is embedded in the mounting frame 15. The mounting frame 15 prevents particulate matter and impurities generated during the drying process from being discharged together, thereby protecting the production environment.

[0030] like Figure 1-4 As shown, three guide plates 19 are fixedly connected in the box body 1, and the three guide plates 19 are arranged corresponding to the input end of the conveyor belt 9. The guide plates 19 are arranged to prevent the amino molding material from getting stuck in the gap and unable to move normally when it falls on the next-level conveyor belt 9.

[0031] Working principle: When the amino molding plastic is dried, the drive motor 12, the drive motor 16 and the multiple conveyor belts 9 are started, and high-temperature gas is added to the main gas pipe 14. The gas enters the interior of the box 1 through the branch gas pipe 20 to provide drying conditions for the interior of the box 1. The main exhaust pipe 5 is arranged to cooperate with the branch exhaust pipe 6 to form an air outlet channel, so that the hot air moves from bottom to top. By adding amino molding plastic to the feed hopper 4, the amino molding plastic will be stuck between two adjacent dividing leaves 18 after entering the feed hopper 4, until the driving shaft 17 drives the dividing leaves 18 to rotate the moving angle, so that the amino molding plastic is poured into the box 1, and the dividing leaves 18 are stuck at the input port of the box 1 to form an isolation from the outside world, reduce heat loss, and enter the upper end of the top conveyor belt 9, and dry along the movement trajectory of multiple conveyor belts 9. In the process of the amino molding plastic moving on the conveyor belt 9, the hot air first hits the amino molding plastic below. The moisture in the base molding plastic is dried and absorbed. When it reaches the upper conveyor belt 9, the water vapor in the hot air is also basically saturated. The saturated hot air is extracted by the exhaust fan 3, and an installation frame 15 is provided at the output end of the exhaust fan 3. The filter screen in the installation frame 15 can prevent the particulate impurities generated in the drying process from being discharged together, thereby protecting the production environment. After the amino molding plastic is dried, it moves along the conveyor belt 9 and falls into the groove of the groove wheel 10. The groove wheel 10 is driven by the rotation of the rotating shaft 11 to throw the dried amino molding plastic onto the discharge plate 2, thereby obtaining the dried amino molding plastic. The second insulation board 8 and the first insulation board 7 are provided to reduce the space for heat loss, and then the groove wheel 10 is clamped between the second insulation board 8 and the first insulation board 7. The dried amino molding plastic is discharged through the groove wheel 10 to reduce the heat loss at the output end, so that the overall temperature in the box body 1 is uniform and the quality of the finished product is guaranteed.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A multi-layer belt drying device for amino molding materials, characterized in that: The invention comprises a box body (1), wherein a plurality of conveyor belts (9) are arranged in a staggered manner at different heights in the box body (1), a feed hopper (4) is fixedly connected to the upper end of the box body (1), a discharge port is provided at the side end of the box body (1), a discharge plate (2) is fixedly connected to the discharge port, a material dividing structure for connecting the interior of the box body (1) with the outside is arranged in the feed hopper (4), and a partition discharge structure for connecting the interior of the box body (1) with the outside is arranged at a position of the box body (1) corresponding to the discharge plate (2).

2. The amino molding compound multilayer belt drying device according to claim 1, characterized in that: A mounting cavity (22) is provided in the middle of the feed hopper (4), the material distribution structure comprises a drive shaft (17) rotatably connected to the inside of the mounting cavity (22), a plurality of material distribution blades (18) are fixedly connected to the outer peripheral surface of the drive shaft (17), the outer end surfaces of the material distribution blades (18) are tangent to the inner wall of the mounting cavity (22), and a drive motor (16) for driving the drive shaft (17) to rotate is fixedly connected to the outer wall of the feed hopper (4).

3. The amino molding compound multilayer belt drying device according to claim 1, characterized in that: The spaced discharging structure comprises a first insulation plate (7) and a second insulation plate (8) fixedly connected inside a box body (1); a rotating shaft (11) is rotatably connected between the first insulation plate (7) and the second insulation plate (8) in the box body (1); a groove wheel (10) is sleeved on the outer circumference of the rotating shaft (11); the groove wheel (10) is tangentially arranged between the outer side walls of the first insulation plate (7) and the second insulation plate (8); a mounting seat (13) is fixedly connected to the outer side wall of the box body (1); a driving motor (12) for driving the rotating shaft (11) to rotate is fixedly installed in the mounting seat (13).

4. The amino molding compound multilayer belt drying device according to claim 1, characterized in that: A heating mechanism is provided at the lower end of the rear side wall of the box body (1), the heating mechanism comprising a main gas pipe (14), a plurality of branch gas pipes (20) being fixedly connected to the outer peripheral surface of the main gas pipe (14), the main gas pipe (14) being connected to the interior of the box body (1) via the branch gas pipes (20).

5. The amino molding compound multilayer belt drying device according to claim 1, characterized in that: An exhaust structure is provided at the top of the box body (1), the exhaust structure comprising a main exhaust pipe (5), a plurality of branch exhaust pipes (6) are fixedly connected to the lower end of the main exhaust pipe (5), and the main exhaust pipe (5) is connected to the interior of the box body (1) via the branch exhaust pipes (6).

6. The amino molding compound multilayer belt drying device according to claim 1, characterized in that: The top of the box body (1) is fixedly connected to a mounting plate (21), the top of the mounting plate (21) is fixedly connected to an exhaust fan (3), and the input end of the exhaust fan (3) is connected to the output end of the main exhaust pipe (5).

7. The amino molding compound multilayer belt drying device according to claim 6, characterized in that: The output end of the exhaust fan (3) is threadedly connected to a mounting frame (15), and a filter screen is embedded in the mounting frame (15).

8. The amino molding compound multilayer belt drying device according to claim 6, characterized in that: Three guide plates (19) are fixedly connected inside the box body (1), and the three guide plates (19) are arranged at the input ends of the conveyor belts (9) of the exhaust fan (3) corresponding to each other.

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