Polyurethane raw material drying device

Abstract

The utility model provides a polyurethane raw material drying device which relates to the technical field of raw material drying and comprises a drying box, a plurality of supporting legs are fixedly installed on the surface of the bottom of the drying box, a control terminal is fixedly arranged on the surface of one side of the drying box, and a temperature detector is fixedly arranged on the surface of the inner wall of one side of the drying box. A box door is connected to the surface of the other side of the drying box through a rotating hinge, a centrifugal assembly is arranged between the inner walls of the left end and the right end of the drying box, a heating assembly is arranged on the surface of the other side of the drying box, a water outlet is connected to the surface of the rear side of the drying box in a penetrating mode, and a stirring assembly is arranged on the surface of the inner wall of one side of the drying box. The centrifugal assembly comprises a plurality of supporting rods. According to the polyurethane raw material drying device, a large amount of moisture in polyurethane raw materials is centrifugally discharged out of the interior of the drying box through the centrifugal cylinder, the interior of the drying box is heated through the cooperation of the hot-air blower equipment to dry the polyurethane raw materials, and the time needed for drying the polyurethane raw materials is greatly shortened.

Description

Technical Field

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

[0002] Polyurethane (PU), whose full name is polycarbamate, is a polymer material formed by the polycondensation reaction of polyols and polyisocyanates and has excellent mechanical properties, with extremely strong plasticity. There are currently two major categories: polyester type and polyether type. The main raw materials of polyurethane include diphenylmethane diisocyanate (MDI), toluene diisocyanate (TDI), and polypropylene glycol (PPG), and all of them have become international commodities at present. Before the polyurethane raw materials are made into polyurethane, they need to be dried to improve the material properties of polyurethane.

[0003] However, in the prior art, the polyurethane raw material drying devices all place the polyurethane raw materials inside the drying box and use a hot air blower to blow dry them. When the polyurethane contains too much moisture, it takes a long time to dry only relying on the heat sealer; moreover, the polyurethane raw materials are stacked inside the drying box, greatly reducing the heating area of the polyurethane raw materials, thereby greatly reducing the efficiency of the polyurethane raw material drying device. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems existing in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a polyurethane raw material drying device, comprising: a drying box, a plurality of support legs are fixedly installed on the bottom surface of the drying box, a control terminal is fixedly arranged on one side surface of the drying box, a temperature detector is fixedly arranged on one inner wall surface of the drying box, a box door is connected through a rotating hinge on the other side surface of the drying box, a centrifugal component is arranged between the left and right inner walls of the drying box, a heating component is arranged on the other side surface of the drying box, a drainage port is connected through and penetrated on the rear side surface of the drying box, and a stirring component is arranged on one inner wall surface of the drying box. The centrifugal component includes a plurality of support rods, the plurality of support rods are fixedly connected between the two inner walls of the drying box, and two rollers are sleeved on the surfaces of the plurality of support rods through bearings.

[0006] As a preferred implementation manner, a circular ring track is fitted and movably arranged between the opposite sides of every four of the plurality of rollers as a group, and a centrifugal cylinder is fixedly installed on the inner wall surface of the two circular ring tracks. A plurality of through holes are formed on the inner wall surface of the centrifugal cylinder.

[0007] As a preferred embodiment, an annular plate is fixedly installed on one side surface of the centrifugal cylinder, a toothed ring is fixedly installed on the outer wall surface of the annular plate, a motor is fixedly installed on one side surface of the drying box, the output end of the motor movably penetrates through one side surface of the drying box, a gear is fixedly sleeved on the output end of the motor, the gear is located between the inner walls of one side of the centrifugal cylinder and the drying box, and the gear meshes with the toothed ring.

[0008] As a preferred embodiment, the heating assembly includes a hot air blower device, the hot air blower device is fixedly installed on the other side surface of the drying box, an air outlet is connected through the output end surface of the hot air blower device, the other end of the air outlet is connected through the bottom end of the other side surface of the drying box, two ventilation openings are connected through the top end of one side surface of the drying box, and filter nets are fixedly installed inside both of the two ventilation openings.

[0009] As a preferred embodiment, the stirring assembly includes a support column, the support column is fixedly installed on the inner wall surface of one side of the drying box, the support column fits and movably penetrates through the inside of the centrifugal cylinder, one end surface of the support column is movably embedded inside the annular plate, a plurality of baffle plates are fixedly installed around one end surface of the outer wall of the support column, all of the plurality of baffle plates are located inside the centrifugal cylinder, a plurality of T-shaped grooves are formed around the outer wall surface of the support column, all of the plurality of T-shaped grooves are correspondingly located on the right sides of the plurality of baffle plates, T-shaped plates are slidably connected in a fitting manner inside all of the plurality of T-shaped grooves, a disc is fixedly installed on one side surface of all of the plurality of T-shaped plates, and a spring is fixedly installed between one end surface of the support column and one side surface of the disc.

[0010] As a preferred embodiment, first hinge plates are hinged on one side surfaces of all of the plurality of baffle plates and one side surfaces of all of the plurality of T-shaped plates, and scraping plates are hinged between the opposite sides of every two of the plurality of first hinge plates as a group.

[0011] As a preferred embodiment, two T-shaped blocks are slidably connected in a fitting manner inside all of the plurality of T-shaped grooves, second hinge plates are hinged on the top surfaces of all of the plurality of T-shaped blocks, and the ends of the plurality of second hinge plates far away from the plurality of T-shaped blocks are correspondingly hinged to the bottom surfaces of the plurality of first hinge plates.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] 1. For this utility model, when it is necessary to dry the moisture in the polyurethane raw material, a suitable detection range is set in advance through the control terminal 3. The temperature inside the drying box 1 is detected in real time by the temperature detector 301 and fed back to the control terminal 3 for temperature regulation. Then, the polyurethane raw material to be dried is added into the inside of the centrifuge cylinder. After the addition of the polyurethane raw material is completed, the box door can be closed. Subsequently, the motor and the hot air blower equipment are operated through the control terminal. The hot air blower equipment operates to convey hot air into the drying box through the air outlet. The motor operates to drive the gear to rotate. The gear rotates and meshes with the toothed ring, thereby causing the annular plate to rotate. Since two annular tracks are fixedly installed on the outer wall surface of the centrifuge cylinder, and multiple rollers are movable inside the two annular tracks, the rotation of the annular plate drives the centrifuge cylinder to rotate. The rotation of the centrifuge cylinder generates centrifugal force, thereby discharging the moisture in the polyurethane inside the centrifuge cylinder and discharging it from the discharge port out of the drying box. When the temperature detector reaches the preset range, the control terminal will control the hot air blower equipment to stop heating and maintain the heat preservation state. The two cooperate to dry the moisture in the polyurethane raw material. Through the cooperation of the above structures, the centrifuge cylinder centrifugally discharges a large amount of water in the polyurethane raw material out of the inside of the drying box, and cooperates with the hot air blower equipment to heat the inside of the drying box to dry the polyurethane raw material, greatly reducing the time required for drying the polyurethane raw material.

[0014] 2. For this utility model, when it is necessary to stir the centrifugally dried polyurethane raw material, the polyurethane raw material is centrifugally dried through the centrifugal component in advance. When the box door is closed, it will push the disc to move. The movement of the disc will compress the spring, so that the spring is compressed under force. At the same time, the movement of the disc drives multiple T-shaped plates to slide inside multiple T-shaped grooves. The sliding of multiple T-shaped plates drives the movement of multiple first hinge plates. The movement of multiple first hinge plates drives the movement of multiple scraping plates. When the box door is completely closed, multiple scraping plates are in contact with the inner wall of the centrifuge cylinder. At the same time, the movement of multiple first hinge plates drives the movement of multiple second hinge plates. The movement of multiple second hinge plates drives the movement of multiple T-shaped blocks inside multiple T-shaped grooves. When the box door is closed, multiple second hinge plates are all in an inclined state. The rotation of the centrifuge cylinder drives the polyurethane raw material to rotate inside the centrifuge cylinder. Multiple scraping plates, first hinge plates and second hinge plates rotate relative to the centrifuge cylinder, so that multiple scraping plates scrape the polyurethane raw material on the surface of the centrifuge cylinder. Multiple first hinge plates and second hinge plates stir the polyurethane raw material inside the centrifuge cylinder. Through the cooperation of the above structures, multiple scraping plates can scrape the polyurethane raw material on the surface of the centrifuge cylinder to prevent the through holes on the surface of the centrifuge cylinder from being blocked. Multiple first hinge plates and second hinge plates rotate relative to the centrifuge cylinder to stir the polyurethane raw material inside the centrifuge cylinder, thereby increasing the heating area of the polyurethane raw material and improving the drying efficiency of the polyurethane raw material drying device. Description of the Drawings

[0015] Figure 1Schematic three-dimensional structure diagram of a polyurethane raw material drying device provided by the present utility model;

[0016] Figure 2 A polyurethane raw material drying device provided by the present utility model Figure 1 Schematic diagram of the cutting wall structure;

[0017] Figure 3 A polyurethane raw material drying device provided by the present utility model Figure 1 Schematic sectional view structure;

[0018] Figure 4 Schematic rear view structure of a polyurethane raw material drying device provided by the present utility model;

[0019] Figure 5 A polyurethane raw material drying device provided by the present utility model Figure 4 Schematic sectional view structure;

[0020] Figure 6 Partial schematic diagram of the centrifugal component of a polyurethane raw material drying device provided by the present utility model;

[0021] Figure 7 Schematic diagram of the stirring component of a polyurethane raw material drying device provided by the present utility model;

[0022] Figure 8 A polyurethane raw material drying device provided by the present utility model Figure 7 Schematic rear view structure.

[0023] Legend:

[0024] 1. Drying box; 2. Support legs; 3. Control terminal; 301. Temperature detector; 4. Box door; 5. Centrifugal component; 501. Support rod; 502. Roller; 503. Ring track; 504. Centrifugal cylinder; 505. Ring plate; 506. Tooth ring; 507. Motor; 508. Gear; 6. Heating component; 601. Hot air blower equipment; 602. Air outlet; 603. Ventilation opening; 7. Drainage port; 8. Stirring component; 801. Support column; 802. Baffle; 803. T-shaped groove; 804. T-shaped plate; 805. Disc; 806. Spring; 807. First hinge plate; 808. Scraper; 809. T-shaped block; 810. Second hinge plate. Detailed implementation method

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figure 1-8 , the present utility model provides a technical solution: a polyurethane raw material drying device, including: a drying box 1, a plurality of support legs 2 are fixedly installed on the bottom surface of the drying box 1, a control terminal 3 is fixedly arranged on one side surface of the drying box 1, a temperature detector 301 is fixedly arranged on one inner wall surface of the drying box 1, a box door 4 is connected to the other side surface of the drying box 1 through a rotating hinge, a centrifugal component 5 is arranged between the left and right inner walls of the drying box 1, a heating component 6 is arranged on the other side surface of the drying box 1, a drain port 7 is connected through the rear side surface of the drying box 1, and a stirring component 8 is arranged on one inner wall surface of the drying box 1. The centrifugal component 5 includes a plurality of support rods 501, and the plurality of support rods 501 are fixedly connected between the two inner walls of the drying box 1. Two rollers 502 are sleeved on the surfaces of the plurality of support rods 501 through bearings.

[0027] Specifically: The control terminal 3 plays a role in controlling the temperature detector 301, the hot air blower device 601 and the motor 507. The bottom inner wall surface of the drying box 1 is in an inclined state to ensure that water can flow to the drain port 7. A handle is fixedly installed on one side surface of the box door 4.

[0028] In one embodiment, every four of the plurality of rollers 502 are in a group, and a circular ring track 503 is fitted and movably arranged between the opposite sides. An inner wall surface of the two circular ring tracks 503 is fixedly installed with a centrifugal cylinder 504, and a plurality of through holes are opened on the inner wall surface of the centrifugal cylinder 504.

[0029] Specifically: Every four of the plurality of rollers 502 are in a group, and the opposite sides are both fitted inside the two circular ring tracks 503. The plurality of rollers 502 and the two circular tracks 503 play a role in supporting the stable rotation of the centrifugal cylinder 504. The water in the polyurethane raw material is discharged from the plurality of through holes to the inside of the drying box 1 through the centrifugal force generated by the centrifugal cylinder 504.

[0030] In one embodiment, an annular plate 505 is fixedly installed on one side surface of the centrifugal cylinder 504, a toothed ring 506 is fixedly installed on the outer wall surface of the annular plate 505, a motor 507 is fixedly installed on one side surface of the drying box 1, an output end of the motor 507 movably penetrates through one side surface of the drying box 1, a gear 508 is fixedly sleeved on the output end of the motor 507, the gear 508 is located between the centrifugal cylinder 504 and one inner wall of the drying box 1, and the gear 508 and the toothed ring 506 are meshed with each other.

[0031] Specifically, the motor 507 functions to drive the gear 508 to rotate. The gear 508 and the toothed ring 506 function to drive the centrifuge cylinder 504 to rotate. The number of convex teeth on the surface of the gear 508 is much larger than the number of convex teeth on the surface of the toothed ring 506, ensuring that the centrifuge cylinder 504 can be driven to rotate at a high speed.

[0032] In one embodiment, the heating assembly 6 includes a hot air blower device 601. The hot air blower device 601 is fixedly installed on the other side surface of the drying box 1. The output end surface of the hot air blower device 601 is connected through a ventilation opening 602. The other end of the ventilation opening 602 is connected through to the bottom end of the other side surface of the drying box 1. Two ventilation openings 603 are connected through to the top end of one side surface of the drying box 1. Filter nets are fixedly installed inside both of the two ventilation openings 603.

[0033] Specifically, the hot air blower device 601 is a prior art and functions to convey hot air into the drying box 1. The two ventilation openings 603 function to ventilate, ensuring the safe use of the drying box 1. Filter nets are fixedly installed inside both the two ventilation openings 603 and the air extraction pipe of the hot air blower device 601 for filtering dust in the air.

[0034] In one embodiment, the stirring assembly 8 includes a support column 801. The support column 801 is fixedly installed on the inner wall surface of one side of the drying box 1. The support column 801 fits and movably penetrates through the inside of the centrifuge cylinder 504. One end surface of the support column 801 is movably embedded inside the inner side of the annular plate 505. A plurality of baffle plates 802 are fixedly installed around one end of the outer wall surface of the support column 801. All of the plurality of baffle plates 802 are located inside the centrifuge cylinder 504. A plurality of T-shaped grooves 803 are formed around the outer wall surface of the support column 801. All of the plurality of T-shaped grooves 803 are correspondingly located on the right side of the plurality of baffle plates 802. T-shaped plates 804 are slidably connected in a fitting manner inside all of the plurality of T-shaped grooves 803. A disc 805 is fixedly installed on one side surface of all of the plurality of T-shaped plates 804. A spring 806 is fixedly installed between one end surface of the support column 801 and one side surface of the disc 805.

[0035] Specifically, the spring 806 functions to limit the position of the plurality of T-shaped plates 804 inside the T-shaped grooves 803 and at the same time prevent the plurality of T-shaped plates 804 from disengaging from the inside of the plurality of T-shaped chutes 803.

[0036] In one embodiment, first hinge plates 807 are hinged to one side surface of all of the plurality of baffle plates 802 and one side surface of all of the plurality of T-shaped plates 804. Scraping plates 808 are hinged between the opposite sides of every two of the plurality of first hinge plates 807 in a group.

[0037] Specifically, multiple scraping plates 808 prevent the polyurethane raw material from always adhering to the inner wall of the centrifuge cylinder 504 and blocking the through holes. While driving four of the first hinge plates 807 to move, the disc 805 drives multiple scraping plates 808 to move horizontally into the centrifuge cylinder 504. When the cabinet door 4 is not closed, a part of the multiple scraping plates 808 is located outside the centrifuge cylinder 504. When the cabinet door 4 is closed, the multiple scraping plates 808 all adhere to the inner wall of the centrifuge cylinder 504.

[0038] In one embodiment, two T-shaped blocks 809 are respectively and slidably connected to the inside of multiple T-shaped grooves 803 in a fitting manner. The top surfaces of the multiple T-shaped blocks 809 are respectively hinged with second hinge plates 810. One ends of the multiple second hinge plates 810 away from the multiple T-shaped blocks 809 are correspondingly hinged to the bottom surfaces of the multiple first hinge plates 807.

[0039] Specifically: when the cabinet door 4 is closed, the multiple first hinge plates 807 and the second hinge plates 810 are all in an inclined state, which is a rotating state relative to the centrifugally rotating polyurethane raw material, so as to stir the polyurethane raw material. When the cabinet door 4 is closed, the multiple second hinge plates 810 are all in a vertical state and always in an inclined state to ensure that the multiple T-shaped blocks 809 do not move in the reverse direction to prevent the spring 806 from resetting.

[0040] Working principle: When it is necessary to dry the moisture in the polyurethane raw material, a suitable detection range is set in advance through the control terminal 3. The temperature inside the drying box 1 is detected in real time by the temperature detector 301 and fed back to the control terminal 3 for temperature regulation. Subsequently, the polyurethane raw material to be dried is added to the inside of the centrifugal cylinder 504. After the addition of the polyurethane raw material is completed, the box door 4 can be closed. Then, the control terminal 3 operates the motor 507 and the hot air blower device 601. The hot air blower device 601 operates to send hot air into the drying box 1 through the air outlet 602. The motor 507 operates to drive the gear 508 to rotate. The gear 508 rotates and meshes with the gear ring 506, so that the annular plate 505 rotates. Since two annular tracks are fixedly installed on the outer wall surface of the centrifugal cylinder 504, and multiple rollers 502 are movable inside the two annular tracks, the rotation of the annular plate 505 drives the centrifugal cylinder 504 to rotate. The rotation of the centrifugal cylinder 504 generates centrifugal force, which throws out the moisture in the polyurethane inside the centrifugal cylinder 504 and discharges it from the discharge port out of the drying box 1. When the temperature detector 301 reaches the preset range, the control terminal 3 will control the hot air blower device 601 to stop heating and maintain the heat preservation state. The two cooperate to dry the moisture in the polyurethane raw material. Through the cooperation of the above structures, the centrifugal cylinder 504 centrifugally discharges a large amount of water in the polyurethane raw material out of the inside of the drying box 1, and cooperates with the hot air blower device 601 to heat the inside of the drying box 1 to dry the polyurethane raw material, greatly reducing the time required for drying the polyurethane raw material;When the polyurethane raw material needs to be stirred, centrifuged and dried, the polyurethane raw material is pre-treated by centrifuging and drying through the centrifugation assembly 5. When the box door 4 is closed, it will push the disc 805 to move. The movement of the disc 805 will squeeze the spring 806, so that the spring 806 is compressed under force. At the same time, the movement of the disc 805 drives a plurality of T-shaped plates 804 to slide inside a plurality of T-shaped grooves 803. The sliding of the plurality of T-shaped plates 804 drives the movement of a plurality of first hinge plates 807, and the movement of the plurality of first hinge plates 807 drives the movement of a plurality of scraping plates 808. When the box door 4 is completely closed, the plurality of scraping plates 808 are in contact with the inner wall of the centrifugal cylinder 504. At the same time, the movement of the plurality of first hinge plates 807 drives the movement of a plurality of second hinge plates 810, and the movement of the plurality of second hinge plates 810 drives the movement of a plurality of T-shaped blocks 809 inside a plurality of T-shaped grooves 803. When the box door 4 is closed, the plurality of second hinge plates 810 are all in an inclined state. The rotation of the centrifugal cylinder 504 drives the polyurethane raw material to rotate inside the centrifugal cylinder 504. The plurality of scraping plates 808, the first hinge plates 807 and the second hinge plates 810 rotate relative to the centrifugal cylinder 504, so that the plurality of scraping plates 808 scrape the polyurethane raw material on the surface of the centrifugal cylinder 504. The plurality of first hinge plates 807 and the second hinge plates 810 stir the polyurethane raw material inside the centrifugal cylinder 504. Through the cooperation of the above structures, the plurality of scraping plates 808 can scrape the polyurethane raw material on the surface of the centrifugal cylinder 504, avoiding blocking the through holes on the surface of the centrifugal cylinder 504. The plurality of first hinge plates 807 and the second hinge plates rotate relative to the centrifugal cylinder 504, stirring the polyurethane raw material inside the centrifugal cylinder 504, thereby increasing the heating area of the polyurethane raw material and improving the drying efficiency of the polyurethane raw material drying device.;

[0041] The above is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A polyurethane raw material drying device, characterized in that: include: A drying box (1), wherein a plurality of supporting legs (2) are fixedly mounted on the bottom surface of the drying box (1), a control terminal (3) is fixedly mounted on one side surface of the drying box (1), a temperature detector (301) is fixedly mounted on the inner wall surface of one side of the drying box (1), and a box door (4) is connected to the other side surface of the drying box (1) via a rotating hinge, a centrifugal assembly (5) is arranged between the inner walls at the left and right ends of the drying box (1), a heating assembly (6) is arranged on the other side surface of the drying box (1), a drain port (7) is connected through the rear side surface of the drying box (1), a stirring assembly (8) is arranged on the inner wall surface of one side of the drying box (1), and the centrifugal assembly (5) comprises a plurality of supporting rods (501), the plurality of supporting rods (501) are fixedly connected between the inner walls at the two ends of the drying box (1), and the surfaces of the plurality of supporting rods (501) are each provided with two rollers (502) via a bearing sleeve.

2. A polyurethane raw material drying device according to claim 1, characterized in that: A plurality of rollers (502) are arranged in groups of four, and circular tracks (503) are movably fitted between opposite sides. Centrifugal cylinders (504) are fixedly mounted on the inner wall surfaces of two of the circular tracks (503). The inner wall surfaces of the centrifugal cylinders (504) are provided with a plurality of through holes.

3. A polyurethane raw material drying device according to claim 2, characterized in that: A ring plate (505) is fixedly mounted on one side surface of the centrifugal cylinder (504), a gear ring (506) is fixedly mounted on the outer wall surface of the ring plate (505), a motor (507) is fixedly mounted on one side surface of the drying box (1), an output end of the motor (507) movably penetrates one side surface of the drying box (1), a gear (508) is fixedly sleeved on the output end of the motor (507), the gear (508) is located between the centrifugal cylinder (504) and one side inner wall of the drying box (1), and the gear (508) and the gear ring (506) are meshed with each other.

4. The polyurethane raw material drying device according to claim 1, characterized in that: The heating component (6) comprises a hot air blower device (601), the hot air blower device (601) is fixedly mounted on the other side surface of the drying box (1), an exhaust port (602) is connected through the output end surface of the hot air blower device (601), the other end of the exhaust port (602) is connected through the bottom end of the other side surface of the drying box (1), and two ventilation ports (603) are connected through the top end of one side surface of the drying box (1), and filters are fixedly mounted inside the two ventilation ports (603).

5. The polyurethane raw material drying device according to claim 1, characterized in that: The stirring assembly (8) comprises a support column (801), wherein the support column (801) is fixedly mounted on the inner wall surface of one side of the drying box (1), and the support column (801) fits and movably penetrates the interior of the centrifugal cylinder (504), and the surface of one end of the support column (801) is movably embedded in the inner side of the annular plate (505), and a plurality of baffles (802) are fixedly mounted around one end of the outer wall surface of the support column (801), and the plurality of baffles (802) are all located on the inner side of the centrifugal cylinder (504). The outer wall surface of the support column (801) is surrounded by a plurality of T-slots (803), and the plurality of T-slots (803) are correspondingly located on the right side of the plurality of baffles (802). The interiors of the plurality of T-slots (803) are slidably connected with T-plates (804), and a disc (805) is fixedly installed on one side surface of the plurality of T-plates (804). A spring (806) is fixedly installed between one end surface of the support column (801) and one side surface of the disc (805).

6. The polyurethane raw material drying device according to claim 5, characterized in that: One side surface of the plurality of baffles (802) and one side surface of the plurality of T-shaped plates (804) are both hingedly connected with a first hinged plate (807), and a scraper plate (808) is hingedly connected between opposite sides of each group of two of the plurality of first hinged plates (807).

7. The polyurethane raw material drying device according to claim 5, characterized in that: The interior of the plurality of T-slots (803) are fitted and slidably connected with two T-blocks (809), the top surfaces of the plurality of T-blocks (809) are hinged with second hinge plates (810), and one end of the plurality of second hinge plates (810) away from the plurality of T-blocks (809) is correspondingly hinged to the bottom surfaces of the plurality of first hinge plates (807).

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