Cooling type reaction kettle for polyurethane adhesive

Abstract

This utility model relates to the field of reaction vessel technology, and in particular to a cooling reaction vessel for polyurethane adhesives. It includes an outer cylinder, inside which an inner cylinder is installed, forming a cooling chamber. Multiple connecting columns are fixedly connected to the bottom of the inner cylinder, and each connecting column has a cooling column threaded onto its outer surface. The cooling column communicates with the cooling chamber. A top cover is installed on the top of the outer cylinder, and a motor is fixedly connected to the top of the top cover. A rotating shaft is fixedly connected to the output end of the motor, and a connecting rod is fixedly connected to the bottom of the rotating shaft. The connecting rod is located inside the inner cylinder, and multiple stirring rods are fixedly connected to the lower surface of the connecting rod. This utility model provides a reaction vessel capable of comprehensively cooling polyurethane adhesives.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessels, and in particular to a cooling reaction vessel for polyurethane adhesives. Background Technology

[0002] The synthesis of polyurethane (such as the addition polymerization of isocyanates and polyols) is a strongly exothermic reaction, and the reaction rate increases exponentially with increasing temperature. If the heat is not dissipated in time, it will cause a sudden rise in temperature, accelerating the reaction and creating an "autocatalytic effect," resulting in a violent reaction in a short period of time, which may even lead to equipment overpressure or material splashing.

[0003] Chinese utility model patent CN202022729595.8 discloses a cooling reactor for polyurethane adhesives, comprising a base plate, a rotating unit, a power unit, a cooling unit, a storage unit, and a stirring tank. The upper surface of the base plate houses the rotating unit, power unit, cooling unit, and storage unit, and three connecting brackets are also mounted on the upper surface of the base plate. The rotating unit includes an arc-shaped shaft, a first connecting rod, a universal ball, a second connecting rod, a drive shaft, a fixed block, a third connecting rod, a foot pedal, and a compression spring. The fixed block is mounted on the upper surface of the base plate, and the drive shaft is rotatably mounted on the fixed block. The third connecting rod is fixedly mounted on the right end of the drive shaft, and a foot pedal is mounted on the other end of the third connecting rod. A compression spring is mounted on the lower end of the foot pedal via a straight bracket. This cooling reactor for polyurethane adhesives exhibits high structural reliability, excellent repeated cooling effect, and superior dual stirring effect, meeting various requirements and providing convenience for workers.

[0004] However, the aforementioned cooling reactor for polyurethane adhesives can only cool the polyurethane adhesive near the outer wall of the mixing tank, and cannot cool the polyurethane adhesive inside the mixing tank, resulting in low cooling efficiency and inconvenience in use. Utility Model Content

[0005] In view of this, the present invention provides a cooling reactor for polyurethane adhesives, and the main technical problem to be solved is: to provide a reactor capable of comprehensively cooling polyurethane adhesives.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cooling reactor for polyurethane adhesives, comprising an outer cylinder, an inner cylinder installed inside the outer cylinder, forming a cooling chamber between the outer cylinder and the inner cylinder, a connecting column fixedly connected to the bottom of the inner cylinder, and multiple connecting columns, each of which has a cooling column threadedly connected to its outer surface, the interior of which communicates with the cooling chamber, a top cover installed on the top of the outer cylinder, a motor fixedly connected to the top of the top cover, a rotating shaft fixedly connected to the output end of the motor, a connecting rod fixedly connected to the bottom of the rotating shaft, the connecting rod being located inside the inner cylinder, and a stirring rod fixedly connected to the lower surface of the connecting rod, and multiple stirring rods.

[0007] By adopting the above technical solution, polyurethane adhesive is added into the inner cylinder during use. Through the cooling chamber and cooling column between the outer and inner cylinders, the coolant can cool and lower the polyurethane adhesive near the middle and side wall of the inner cylinder. The motor drives the rotating shaft to rotate, which in turn drives the connecting rod to rotate, so that the stirring rod installed below the connecting rod can stir and mix the polyurethane adhesive. The stirring rod and the cooling column can generate sufficient shear force, thereby better stirring and mixing the polyurethane adhesive.

[0008] As a further description of the above technical solution:

[0009] A support frame is fixedly connected to the bottom of the outer cylinder, and the top of the support frame is fixedly connected to the bottom of the inner cylinder.

[0010] By adopting the above technical solution, it is easy to form a cooling cavity between the inner cylinder and the outer cylinder.

[0011] As a further description of the above technical solution:

[0012] The top of the cover is fixedly connected to a feed pipe, and the inside of the feed pipe is connected to the inside of the inner cylinder.

[0013] By adopting the above technical solution, polyurethane adhesive enters the inner cylinder from the feed pipe for processing.

[0014] As a further description of the above technical solution:

[0015] The bottom of the inner cylinder is fixedly connected to a discharge pipe, and the bottom of the discharge pipe extends to the bottom of the outer cylinder.

[0016] By adopting the above technical solution, the processed polyurethane adhesive is discharged from the discharge pipe.

[0017] As a further description of the above technical solution:

[0018] A bracket is installed at the bottom of the outer cylinder, and a pump is fixedly connected to the upper surface of the bracket. A water inlet pipe is fixedly connected to the output end of the pump. The end of the water inlet pipe away from the pump is fixedly connected to the bottom of the outer cylinder, and the inside of the water inlet pipe is connected to the cooling chamber.

[0019] By adopting the above technical solution, the pump can continuously inject cooling water into the cooling chamber to absorb the heat generated during the processing of polyurethane adhesive in the inner cylinder.

[0020] As a further description of the above technical solution:

[0021] A water outlet pipe is fixedly connected to the outer surface of the outer cylinder, and the interior of the water outlet pipe is connected to the cooling chamber.

[0022] By adopting the above technical solution, the cooling water inside the cooling chamber absorbs heat and is discharged from the outlet pipe.

[0023] As a further description of the above technical solution:

[0024] The multiple cooling columns are arranged in a ring around the center of the inner cylinder, and the multiple stirring rods are located between the multiple cooling columns.

[0025] By adopting the above technical solution, it is convenient for multiple stirring rods to rotate inside the inner cylinder.

[0026] By employing the above technical solution, the cooling reactor for polyurethane adhesives of this utility model has at least the following beneficial effects:

[0027] 1. Compared with the prior art, this cooling reactor for polyurethane adhesives uses a cooling chamber and cooling column between the outer and inner cylinders to cool the polyurethane adhesive near the middle and side wall of the inner cylinder. The motor drives the rotating shaft to rotate, which in turn drives the connecting rod to rotate, so that the stirring rod installed below the connecting rod can stir and mix the polyurethane adhesive. The stirring rod and the cooling column can generate sufficient shear force, thereby better stirring and mixing the polyurethane adhesive.

[0028] 2. Compared with the prior art, this cooling reactor for polyurethane adhesives can continuously inject cooling water into the cooling chamber through the operation of the pump, absorb the heat generated during the processing of polyurethane adhesives in the inner cylinder, and the cooling water inside the cooling chamber is discharged from the outlet pipe after absorbing the heat. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure from a first-view perspective of the present invention.

[0030] Figure 2 This is a schematic diagram of the overall structure from a second perspective proposed in this utility model;

[0031] Figure 3 This is a first-view sectional view of the internal structure proposed in this utility model;

[0032] Figure 4 This is a second-view sectional view of the internal structure proposed in this utility model;

[0033] Figure 5 This is a third-view sectional view of the internal structure proposed in this utility model;

[0034] Figure 6 This is a cross-sectional view of the internal structure from the fourth perspective proposed in this utility model.

[0035] Legend:

[0036] 1. Outer cylinder; 2. Support frame; 3. Inner cylinder; 4. Connecting column; 5. Cooling column; 6. Top cover; 7. Motor; 8. Rotating shaft; 9. Connecting rod; 10. Stirring rod; 11. Feed pipe; 12. Discharge pipe; 13. Pump; 14. Water inlet pipe; 15. Water outlet pipe. Detailed Implementation

[0037] Reference Figure 1-6 This utility model provides a cooling reactor for polyurethane adhesives: It includes an outer cylinder 1, inside which an inner cylinder 3 is installed, forming a cooling chamber. Multiple connecting columns 4 are fixedly connected to the bottom of the inner cylinder 3, and each connecting column 4 has a threaded connection to a cooling column 5. The interior of each cooling column 5 communicates with the cooling chamber, allowing cooling water to enter the cooling column 5 from the cooling chamber to cool the polyurethane adhesive. A top cover 6 is installed on the top of the outer cylinder 1, and a motor 7 is fixedly connected to the top of the top cover 6. A rotating shaft 8 is fixedly connected to the output end of the motor 7, and a connecting rod 9 is fixedly connected to the bottom of the rotating shaft 8. The connecting rod 9 is located inside the inner cylinder 3, and a stirring rod 10 is fixedly connected to the lower surface of the connecting rod 9. There are multiple stirring rods 10, and multiple cooling columns 5 are arranged in a ring around the center of the inner cylinder 3. The multiple stirring rods 10 are located between the multiple cooling columns 5, which facilitates the rotation of the multiple stirring rods 10 inside the inner cylinder 3. When in use, polyurethane adhesive is added into the inner cylinder 3. Through the cooling chamber between the outer cylinder 1 and the inner cylinder 3 and the cooling columns 5, the coolant can cool down the polyurethane adhesive near the middle and side wall of the inner cylinder 3. The motor 7 drives the rotating shaft 8 to rotate, which in turn drives the connecting rod 9 to rotate, so that the stirring rods 10 installed below the connecting rod 9 can stir and mix the polyurethane adhesive. The stirring rods 10 and the cooling columns 5 can generate sufficient shear force, thereby better stirring and mixing the polyurethane adhesive.

[0038] A support frame 2 is fixedly connected to the bottom of the outer cylinder 1. The top of the support frame 2 is fixedly connected to the bottom of the inner cylinder 3, so as to facilitate the formation of a cooling chamber between the inner cylinder 3 and the outer cylinder 1.

[0039] The top of the cover 6 is fixedly connected to the feed pipe 11, and the inside of the feed pipe 11 is connected to the inside of the inner cylinder 3. The polyurethane adhesive enters the inner cylinder 3 from the feed pipe 11 for processing. The bottom of the inner cylinder 3 is fixedly connected to the discharge pipe 12, and the bottom of the discharge pipe 12 extends to the bottom of the outer cylinder 1. The processed polyurethane adhesive is discharged from the discharge pipe 12.

[0040] A bracket is installed at the bottom of the outer cylinder 1, and a pump 13 is fixedly connected to the upper surface of the bracket. A water inlet pipe 14 is fixedly connected to the output end of the pump 13. The end of the water inlet pipe 14 away from the pump 13 is fixedly connected to the bottom of the outer cylinder 1, and the inside of the water inlet pipe 14 is connected to the cooling chamber. The pump 13 can continuously inject cooling water into the cooling chamber to absorb the heat generated during the processing of the polyurethane adhesive in the inner cylinder 3. A water outlet pipe 15 is fixedly connected to the outer surface of the outer cylinder 1. The inside of the water outlet pipe 15 is connected to the cooling chamber. The cooling water inside the cooling chamber absorbs heat and is discharged from the water outlet pipe 15.

[0041] Working principle: When in use, polyurethane adhesive is added into the inner cylinder 3. Through the cooling chamber between the outer cylinder 1 and the inner cylinder 3 and the cooling column 5, the coolant can cool down the polyurethane adhesive near the middle and side wall of the inner cylinder 3. The motor 7 drives the rotating shaft 8 to rotate, which in turn drives the connecting rod 9 to rotate. This allows the stirring rod 10 installed below the connecting rod 9 to stir and mix the polyurethane adhesive. The stirring rod 10, together with the cooling column 5, can generate sufficient shear force to better stir and mix the polyurethane adhesive.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cooling reactor for polyurethane adhesives, comprising an outer cylinder (1), characterized in that: An inner cylinder (3) is installed inside the outer cylinder (1), and a cooling chamber is formed between the outer cylinder (1) and the inner cylinder (3). A connecting column (4) is fixedly connected to the bottom of the inner cylinder (3), and there are multiple connecting columns (4). The outer surfaces of the multiple connecting columns (4) are threaded with cooling columns (5). The interior of the cooling columns (5) is connected to the cooling chamber. A top cover (6) is installed on the top of the outer cylinder (1). A motor (7) is fixedly connected to the top of the top cover (6). A rotating shaft (8) is fixedly connected to the output end of the motor (7). A connecting rod (9) is fixedly connected to the bottom of the rotating shaft (8). The connecting rod (9) is located inside the inner cylinder (3). A stirring rod (10) is fixedly connected to the lower surface of the connecting rod (9). There are multiple stirring rods (10).

2. The cooling reactor for polyurethane adhesives according to claim 1, characterized in that: The bottom of the outer cylinder (1) is fixedly connected to a support frame (2), and the top of the support frame (2) is fixedly connected to the bottom of the inner cylinder (3).

3. The cooling reactor for polyurethane adhesives according to claim 1, characterized in that: The top of the cover (6) is fixedly connected to a feed pipe (11), and the inside of the feed pipe (11) is connected to the inside of the inner cylinder (3).

4. The cooling reactor for polyurethane adhesives according to claim 1, characterized in that: The bottom of the inner cylinder (3) is fixedly connected to a discharge pipe (12), and the bottom of the discharge pipe (12) extends to the bottom of the outer cylinder (1).

5. A cooling reactor for polyurethane adhesives according to claim 1, characterized in that: A bracket is installed at the bottom of the outer cylinder (1), and a pump (13) is fixedly connected to the upper surface of the bracket. A water inlet pipe (14) is fixedly connected to the output end of the pump (13). The end of the water inlet pipe (14) away from the pump (13) is fixedly connected to the bottom of the outer cylinder (1), and the interior of the water inlet pipe (14) is connected to the cooling chamber.

6. A cooling reactor for polyurethane adhesives according to claim 1, characterized in that: The outer surface of the outer cylinder (1) is fixedly connected to a water outlet pipe (15), and the interior of the water outlet pipe (15) is connected to the cooling chamber.

7. A cooling reactor for polyurethane adhesives according to claim 1, characterized in that: Multiple cooling columns (5) are arranged in a ring around the center of the inner cylinder (3), and multiple stirring rods (10) are located between the multiple cooling columns (5).

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