Anti-solidification polyurethane raw material premixing device

Abstract

The utility model discloses a kind of polyurethane raw material premixing devices of anti-solidification, it is related to polyurethane production technical field, including mixing tank, the outer surface of mixing tank is fixedly connected with No. 2 outer sheath, the outer surface of mixing tank and located inside No. 2 outer sheath is equipped with air inlet, the inside fixed connection of No. 2 outer sheath has electric heating rod, the outside of No. 2 outer sheath is equipped with two No. 1 outer sheath, between the end of two No. 1 outer sheath is fixedly connected, the middle of two No. 1 outer sheath is all equipped with air inlet, the utility model is equipped with No. 1 outer sheath, drainage fan and electric heating rod, when using, the heat on electric heating rod can be brought into mixing tank by the action of airflow, using flowing heat, can make polyurethane raw material evenly heated, and simple structure, convenient to use, heat transfer efficiency is higher, more uniform, heat promotion, can promote the dispersion of polyurethane, to facilitate the dispersion of polyurethane, avoid solidification.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane production technology, and in particular to a polyurethane raw material premixing device that prevents solidification. Background Technology

[0002] Polyurethane is a polymer material with excellent mechanical properties and extremely high plasticity, formed by polycondensation reaction of polyols and polyisocyanates.

[0003] For example, Chinese patent CN220464386U discloses a premixing device for polyurethane insulation board raw materials, including a base plate, a first motor and a mixing tank. A column is fixedly connected to one side of the top of the base plate, and a first motor is fixedly connected to the bottom of the column. A transmission rod is rotatably connected to the bottom of the first motor, and two sets of connecting rods are fixedly connected to the middle of the outer wall of the transmission rod.

[0004] In the existing technology, polyurethane is prone to solidification in low-temperature environments. Therefore, when producing polyurethane in cold regions, it is necessary to pre-treat the polyurethane raw materials to break up the solidified polyurethane for subsequent processing. However, the premixing equipment currently used only breaks up the raw materials by the force of the stirring rack, which is inefficient and inconvenient to use. Utility Model Content

[0005] The purpose of this invention is to solve the problem that polyurethane is prone to solidification in low-temperature environments. Therefore, when producing polyurethane in cold regions, it is necessary to pre-treat the polyurethane raw materials to break up the solidified polyurethane for subsequent processing. However, the premixing equipment currently used only breaks up the raw materials by the force of the stirring rack, which is inefficient and inconvenient to use. Therefore, this invention proposes a polyurethane raw material premixing device that prevents solidification.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a polyurethane raw material premixing device for preventing solidification, comprising a mixing tank, a second outer sheath fixedly connected to the outer surface of the mixing tank, an air inlet opened on the outer surface of the mixing tank and inside the second outer sheath, an electric heating rod fixedly connected inside the second outer sheath, two first outer sheaths arranged on the outer side of the second outer sheath, the ends of the two first outer sheaths fixedly connected, an air inlet penetrating through the middle of each of the two first outer sheaths, a ducting fan fixedly connected to the outer side of the first outer sheath, the ducting fan communicating with the air inlet, the center lines of the ducting fan and the air inlet being on the same horizontal plane, and the included angle being 90°.

[0007] Preferably, a base is fixedly connected to the outer edge of the lower end of the mixing tank, and a support frame is fixedly connected to the lower end of the base.

[0008] Preferably, a drive motor is fixedly connected to the lower end of the mixing tank, and the output end of the drive motor passes through the lower end of the mixing tank and is fixedly connected to an inner shaft.

[0009] Preferably, a mixing frame is fixedly connected to the outer surface of the inner shaft, a dispersing cone is fixedly connected to the upper end of the mixing frame, and an inner extension rod is fixedly connected between the lower middle part of the mixing frame and the inner shaft.

[0010] Preferably, an end mount is fixedly connected to the upper end of the mixing tank, and a reinforcing rib is fixedly connected between the lower end of the end mount and the outer surface of the mixing tank.

[0011] Preferably, an end frame is fixedly connected between the upper ends of the two end mounts, an electric telescopic rod is fixedly connected to the upper end of the end frame, and a pressure plate is fixedly connected to the output end of the electric telescopic rod.

[0012] Preferably, an inner slot is provided at the top and bottom of the middle part of the inner part of the first outer sheath. The inner slot is used to engage with the second outer sheath. A locking block is fixedly connected to the outer surface of the second outer sheath. A limiting groove is provided at both ends of the inner slot, and the limiting groove engages with the locking block.

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

[0014] 1. In this utility model, by setting up an outer sheath, a flow fan and an electric heating rod, the heat on the electric heating rod can be carried into the mixing tank by the airflow during use. The heat from the flowing air can make the polyurethane raw material evenly heated. The structure is simple, easy to use, and has high and uniform heat transfer efficiency. The increase in heat can promote the dispersion of polyurethane, thereby facilitating the dispersion of polyurethane and preventing solidification.

[0015] 2. In this utility model, the lower end of the solidified polyurethane is moved by the dispersing cone to disperse the solidified part. The polyurethane raw material is squeezed downward by the pressure plate to promote the dispersion of the solidified polyurethane raw material and facilitate use. The position of the outer sheath is restricted by the setting of the locking block and limiting groove to ensure that the airflow introduced by the flow fan can contact the electric heating rod to the maximum extent, thereby ensuring the temperature of the airflow and ensuring the dispersion effect of the polyurethane raw material. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a polyurethane raw material premixing device for preventing solidification is provided for this utility model. Figure 1 ;

[0017] Figure 2 A three-dimensional structural diagram of a polyurethane raw material premixing device for preventing solidification is provided for this utility model. Figure 2 ;

[0018] Figure 3An exploded view of a polyurethane raw material premixing device for preventing solidification is provided for this utility model.

[0019] Figure 4 This invention presents a three-dimensional structural diagram of the first outer sheath in a polyurethane raw material premixing device for preventing solidification.

[0020] Legend: 1. Mixing tank; 2. Base; 3. Support frame; 4. Drive motor; 5. Outer sleeve No. 1; 6. Drainage fan; 7. End mount; 8. Reinforcing rib; 9. End frame; 10. Electric telescopic rod; 11. Pressure plate; 12. Inner shaft; 13. Mixing frame; 14. Dispersing cone; 15. Air inlet; 16. Inner extension rod; 17. Outer sleeve No. 2; 18. Electric heating rod; 19. Locking block; 20. Air inlet; 21. Inner slot; 22. Limiting slot. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a polyurethane raw material premixing device for preventing solidification, including a mixing tank 1. A second outer sheath 17 is fixedly connected to the outer surface of the mixing tank 1. An air inlet 15 is opened on the outer surface of the mixing tank 1 and inside the second outer sheath 17. An electric heating rod 18 is fixedly connected inside the second outer sheath 17. Two first outer sheaths 5 are arranged on the outer side of the second outer sheath 17. The ends of the two first outer sheaths 5 are fixedly connected. An air inlet 20 is opened through the middle of each of the two first outer sheaths 5. A duct fan 6 is fixedly connected to the outer side of the first outer sheath 5. The duct fan 6 is connected to the air inlet 20. The center lines of the duct fan 6 and the air inlet 15 are located on the same horizontal plane and the included angle is 90°.

[0024] The specific settings and functions of this embodiment will be described in detail below. With the arrangement of the outer sheath 5, the airflow fan 6 and the electric heating rod 18, the heat on the electric heating rod 18 can be carried into the mixing tank 1 by the airflow. The heat from the flowing air can make the polyurethane raw material heat evenly. The structure is simple, easy to use, and has high and uniform heat transfer efficiency. The increase in heat can promote the dispersion of polyurethane, thereby facilitating the dispersion of polyurethane and preventing solidification.

[0025] Example 2: Figure 1 - Figure 4 As shown, a base 2 is fixedly connected to the outer edge of the lower end of the mixing tank 1. A support frame 3 is fixedly connected to the lower end of the base 2. A drive motor 4 is fixedly connected to the lower end of the mixing tank 1. An inner shaft 12 is fixedly connected to the output end of the drive motor 4 through the lower end of the mixing tank 1. A mixing frame 13 is fixedly connected to the outer surface of the inner shaft 12. A dispersing cone 14 is fixedly connected to the upper end of the mixing frame 13. An inner extension rod 16 is fixedly connected between the lower middle part of the mixing frame 13 and the inner shaft 12. An end mount 7 is fixedly connected to the upper end of the mixing tank 1. The lower end of the end mount 7... A reinforcing rib 8 is fixedly connected to the outer surface of the mixing tank 1. An end frame 9 is fixedly connected between the upper ends of the two end mounts 7. An electric telescopic rod 10 is fixedly connected to the upper end of the end frame 9. A pressure plate 11 is fixedly connected to the output end of the electric telescopic rod 10. An inner slot 21 is provided at the upper and lower parts of the middle of the first outer sheath 5. The inner slot 21 is used to engage with the second outer sheath 17. A locking block 19 is fixedly connected to the outer surface of the second outer sheath 17. A limiting groove 22 is provided at both ends of the inner slot 21. The limiting groove 22 engages with the locking block 19.

[0026] The overall effect of this embodiment is that the lower end of the solidified polyurethane is moved by the dispersing cone 14, which disperses the solidified part. The polyurethane raw material is squeezed downward by the pressure plate 11, which promotes the dispersion of the solidified polyurethane raw material and facilitates its use. The position of the outer sheath 5 is restricted by the locking block 19 and the limiting groove 22, which ensures that the airflow introduced by the flow fan 6 can contact the electric heating rod 18 to the maximum extent, thereby ensuring the temperature of the airflow and ensuring the dispersion effect of the polyurethane raw material.

[0027] The usage and working principle of this device are as follows: When in use, fully retract the electric telescopic rod 10, then pour the polyurethane raw material into the mixing tank 1. When the solidification amount is small, extend the electric telescopic rod 10 so that the pressure plate 11 extends into the interior of the mixing tank 1 and is located above the air inlet 15. The duct fan 6 introduces airflow into the space between the first outer sheath 5 and the second outer sheath 17. The airflow comes into contact with the electric heating rod 18, which heats the airflow and concentrates it in the mixing tank 1, raising the temperature of the polyurethane and preventing solidification for subsequent processing. When there is a large amount of solidified polyurethane raw material, the pressure plate 11 squeezes the solidified polyurethane. The hot airflow passes through the polyurethane raw material, heating it. Combined with the rotation of the mixing frame 13, the polyurethane raw material is dispersed to prevent solidification. After the raw material is premixed, it is then fed into the next process.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A premixing device for polyurethane raw materials to prevent solidification, comprising a mixing tank (1), characterized in that: A second outer sheath (17) is fixedly connected to the outer surface of the mixing tank (1). An air inlet (15) is opened on the outer surface of the mixing tank (1) and inside the second outer sheath (17). An electric heating rod (18) is fixedly connected inside the second outer sheath (17). Two first outer sheaths (5) are provided on the outer side of the second outer sheath (17). The ends of the two first outer sheaths (5) are fixedly connected. An air inlet (20) is opened through the middle of each of the two first outer sheaths (5). A duct fan (6) is fixedly connected to the outer side of the first outer sheath (5). The duct fan (6) is connected to the air inlet (20). The center lines of the duct fan (6) and the air inlet (15) are located on the same horizontal plane and the included angle is 90°.

2. The polyurethane raw material premixing device for preventing solidification according to claim 1, characterized in that: A base (2) is fixedly connected to the outer edge of the lower end of the mixing tank (1), and a support frame (3) is fixedly connected to the lower end of the base (2).

3. The polyurethane raw material premixing device for preventing solidification according to claim 1, characterized in that: A drive motor (4) is fixedly connected to the lower end of the mixing tank (1), and the output end of the drive motor (4) is fixedly connected to an inner shaft (12) through the lower end of the mixing tank (1).

4. The polyurethane raw material premixing device for preventing solidification according to claim 3, characterized in that: A mixing frame (13) is fixedly connected to the outer surface of the inner shaft (12). A dispersing cone (14) is fixedly connected to the upper end of the mixing frame (13). An inner extension rod (16) is fixedly connected between the lower middle part of the mixing frame (13) and the inner shaft (12).

5. The polyurethane raw material premixing device for preventing solidification according to claim 1, characterized in that: The upper end of the mixing tank (1) is fixedly connected to an end mount (7), and the lower end of the end mount (7) is fixedly connected to the outer surface of the mixing tank (1) with a reinforcing rib (8).

6. The polyurethane raw material premixing device for preventing solidification according to claim 5, characterized in that: An end frame (9) is fixedly connected between the upper ends of the two end mounts (7), and an electric telescopic rod (10) is fixedly connected to the upper end of the end frame (9). A pressure plate (11) is fixedly connected to the output end of the electric telescopic rod (10).

7. The polyurethane raw material premixing device for preventing solidification according to claim 1, characterized in that: The inner groove (21) is provided at the top and bottom of the middle part of the first outer sheath (5). The inner groove (21) is used to engage with the second outer sheath (17). The outer surface of the second outer sheath (17) is fixedly connected with a block (19). The two ends of the inner groove (21) are provided with limiting grooves (22), which engage with the block (19).

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