Drying device for polyurethane production

Abstract

The utility model discloses a drying device for polyurethane production, which comprises a drying tank, a group of supporting blocks are arranged on the drying tank, a vertical plate is arranged on the supporting blocks, a transverse plate is arranged at one end of the vertical plate, an electric push rod is arranged at the bottom of the transverse plate, a bottom plate is arranged at the bottom end of the electric push rod, a cover plate is welded at the bottom end of the bottom plate, and a round hole is formed in the cover plate. A draught fan is installed on one side of the top of the cover plate, the input end of the draught fan is connected with a box body through a pipeline, the cover plate is driven to descend by unfolding an electric push rod, so that a closed space is formed in the drying tank, then air in the drying tank is rapidly pumped out by starting the draught fan and a motor, and meanwhile a transmission column drives a stirring plate to rotate; and when the air in the drying tank is exhausted, the air which is heated by the drying agent and the heat pipe and is injected into the drying tank again through the filter plate enters the drying tank, so that the drying speed of the raw materials is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of drying devices, in particular to a drying device for polyurethane production. Background Art

[0002] The full name of polyurethane foaming agent is one-component polyurethane foam sealant, commonly known as foaming agent, foam glue, which is the product of the cross-integration of aerosol technology and polyurethane foam technology. It is a special polyurethane product that fills polyurethane prepolymer, foaming agent, catalyst and other components in a pressure-resistant aerosol can. Polyurethane is a polymer material with high strength, tear resistance, wear resistance and other properties. Due to its excellent performance, it is widely used in light industry, chemical industry, electronics, textiles, medical care, construction, building materials, automobiles, national defense, aerospace, aviation and other fields.

[0003] Before the production of polyurethane foam plastics, the raw materials need to be dried, otherwise it will affect the quality of the produced polyurethane foam plastics. Traditional drying equipment has poor drying efficiency, long drying time and poor drying effect. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcoming of poor drying efficiency in the prior art and to propose a drying device for polyurethane production.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A drying device for polyurethane production includes a drying tank, which is provided with a group of support blocks, a vertical plate is provided on the support blocks, a horizontal plate is provided at one end of the vertical plate, an electric push rod is provided at the bottom of the horizontal plate, a bottom plate is provided at the bottom end of the electric push rod, a cover plate is welded to the bottom end of the bottom plate, a circular hole is provided on the cover plate, a fan is installed on one side of the top of the cover plate, the input end of the fan is connected to the box body through a pipeline, one side of the box body is connected to the exhaust hole on the cover plate through a pipeline, a rectangular hole is provided on the cover plate, a filter plate is fitted in the hole, a desiccant is provided on the filter plate, a heat pipe is provided inside the filter plate, and a right-angle plate is also included, a circular hole is provided on the right-angle plate, a motor is installed on the top of the right-angle plate, the output end of the motor is connected to a transmission column, the transmission column is fitted in the hole on the right-angle plate, the transmission column is fitted in the circular hole on the cover plate, a collar is fixed through the transmission column, and a stirring plate is provided on the outer peripheral surface of the collar.

[0007] Preferably, three groups of stirring plates are provided, and the height difference of each group is the same, and inclined grooves are provided on the stirring plates.

[0008] Preferably, a first connecting pipe is connected to the bottom of the drying tank, and a first electric valve is provided on one side of the first connecting pipe.

[0009] Preferably, a material injection tank is provided at one end of the first connecting pipe, a second connecting pipe is provided at the bottom of the material injection tank, and a second electric valve is provided on the outer side of the second connecting pipe.

[0010] Preferably, a valve is provided on one side of the box body, and the bottom of the box body is connected to the cover plate.

[0011] The utility model has the following beneficial effects:

[0012] After the raw materials are placed in the drying tank, the electric push rod is deployed to drive the cover plate to drop, thereby making the drying tank a closed space. Then, the fan and motor are started to quickly extract the air inside the drying tank. At the same time, the transmission column drives the stirring plate to rotate, thereby mixing the raw materials inside the drying tank and accelerating the drying speed of the raw materials. When the air inside the drying tank is discharged, the air heated by the desiccant and the heat pipe will be re-injected into the drying tank through the filter plate, thereby accelerating the drying speed of the raw materials. When the raw materials inside the drying tank are dried, the first electric valve is opened to input the raw materials in the drying tank into the filling tank, thereby achieving the effect of sealed storage of the raw materials and preventing the raw materials from continuous contact with air. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the overall structure of the drying device;

[0014] Figure 2 It is a structural schematic diagram of the stirring plate of the drying device;

[0015] Figure 3 It is a schematic diagram of the drying tank structure of the drying device;

[0016] Figure 4 Schematic diagram of the overall structure of the drying device cover.

[0017] In the figure: 1. Drying tank; 2. Support block; 3. Vertical plate; 4. Horizontal plate; 5. Electric push rod; 6. Bottom plate; 7. Cover plate; 8. Fan; 9. Box body; 10. Filter plate; 11. Desiccant; 12. Right-angle plate; 13. Motor; 14. Transmission column; 15. Ring; 16. Stirring plate; 17. First connecting pipe; 18. First electric valve; 19. Filling tank; 20. Second connecting pipe; 21. Second electric valve. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-4A drying device for polyurethane production includes a drying tank 1, a group of support blocks 2 are provided on the drying tank 1, a vertical plate 3 is provided on the support block 2, a horizontal plate 4 is provided at one end of the vertical plate 3, an electric push rod 5 is provided at the bottom of the horizontal plate 4, a bottom plate 6 is provided at the bottom end of the electric push rod 5, a cover plate 7 is welded to the bottom end of the bottom plate 6, a circular hole is provided on the cover plate 7, a fan 8 is installed on one side of the top of the cover plate 7, the input end of the fan 8 is connected to the box body 9 through a pipe, and one side of the box body 9 is connected to the exhaust hole on the cover plate 7 through a pipe, a rectangular hole is provided on the cover plate 7, a filter plate 10 is fitted in the hole, a desiccant 11 is provided inside the filter plate 10, and a right-angle plate 12 is also included, a circular hole is provided on the right-angle plate 12, a motor 13 is installed on the top of the right-angle plate 12, and the output end of the motor 13 is connected to a transmission Column 14, the transmission column 14 fits in the hole on the right-angle plate 12, the transmission column 14 fits in the circular hole on the cover plate 7, the transmission column 14 is fixed with a collar 15, and the outer peripheral surface of the collar 15 is provided with a stirring plate 16. After the raw materials are placed in the drying tank 1, the electric push rod 5 is unfolded to drive the cover plate 7 to descend, so that the drying tank 1 becomes a closed space, and then the fan 8 and the motor 13 are started to quickly extract the air inside the drying tank 1. At the same time, the transmission column 14 drives the stirring plate 16 to rotate, thereby mixing the raw materials inside the drying tank 1 and accelerating the drying speed of the raw materials. When the air inside the drying tank 1 is discharged, the air heated by the desiccant 11 and the heat pipe will be re-injected into the drying tank 1 through the filter plate 10, thereby accelerating the drying speed of the raw materials.

[0020] There are three groups of stirring plates 16, and the height difference of each group is the same. The stirring plates 16 are provided with inclined grooves to achieve the effect of turning the raw materials. The bottom of the drying tank 1 is connected to a first connecting pipe 17, and a first electric valve 18 is provided on one side of the first connecting pipe 17. A filling tank 19 is provided at one end of the first connecting pipe 17, and a second connecting pipe 20 is provided at the bottom of the filling tank 19. A second electric valve 21 is provided on the outside of the second connecting pipe 20. A valve is provided on one side of the box body 9, and the bottom of the box body 9 is connected to the cover plate 7. When the raw materials inside the drying tank are dried, the first electric valve 18 is opened to input the raw materials of the drying tank into the filling tank 19, thereby achieving the effect of sealed storage of the raw materials and preventing the raw materials from continuous contact with air.

[0021] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A drying device for polyurethane production, comprising a drying tank (1), characterized in that: The drying tank (1) is provided with a group of support blocks (2), the support blocks (2) are provided with vertical plates (3), one end of the vertical plates (3) is provided with a horizontal plate (4), the bottom of the horizontal plate (4) is provided with an electric push rod (5), the bottom end of the electric push rod (5) is provided with a bottom plate (6), the bottom end of the bottom plate (6) is welded with a cover plate (7), a circular hole is provided on the cover plate (7), a fan (8) is installed on one side of the top of the cover plate (7), the input end of the fan (8) is connected to a box (9) through a pipeline, one side of the box (9) is connected to the exhaust hole on the cover plate (7) through a pipeline, the cover plate (7) is provided with a rectangular hole, a filter plate (10) is matched in the hole, a desiccant (11) is provided on the filter plate (10), and a heat pipe is provided inside the filter plate (10); The invention also includes a right-angle plate (12), a circular hole is provided on the right-angle plate (12), a motor (13) is installed on the top of the right-angle plate (12), the output end of the motor (13) is connected to a transmission column (14), the transmission column (14) is fitted in the hole on the right-angle plate (12), the transmission column (14) is fitted in the circular hole on the cover plate (7), a collar (15) is fixedly passed through the transmission column (14), and a stirring plate (16) is provided on the outer peripheral surface of the collar (15).

2. A drying device for polyurethane production according to claim 1, characterized in that: The stirring plates (16) are provided in three groups, and the height difference of each group is the same. The stirring plates (16) are provided with inclined grooves.

3. A drying device for polyurethane production according to claim 1, characterized in that: The bottom of the drying tank (1) is connected to a first connecting pipe (17), and a first electric valve (18) is provided on one side of the first connecting pipe (17).

4. A drying device for polyurethane production according to claim 3, characterized in that: A material injection tank (19) is provided at one end of the first connecting pipe (17), a second connecting pipe (20) is provided at the bottom of the material injection tank (19), and a second electric valve (21) is provided on the outside of the second connecting pipe (20).

5. A drying device for polyurethane production according to claim 1, characterized in that: A valve is provided on one side of the box body (9), and the bottom of the box body (9) is connected to the cover plate (7).

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