Isocyanate trimerization catalyst processing device used in polyurethane industry

Abstract

The utility model relates to the technical field of polyurethane industry, and discloses an isocyanate trimerization catalyst processing device used in the polyurethane industry, which comprises a tank body, a through hole is arranged on the upper surface of the tank body, and the inner wall of the through hole and the upper surface of the tank body are fixedly connected with a stirring mechanism. The upper surface of the tank body is fixedly connected with a feeding pipe, the top end of the feeding pipe is fixedly communicated with a first valve, the top end of the first valve is fixedly communicated with a feeding hopper, and the bottom of the tank body is fixedly communicated with a discharging pipe. Through the cooperation of the air inlet cover, the air uniformizing plate, the air blowing mechanism, the air inlet holes and the supporting net, upward airflow can be uniformly generated at the bottom of the tank body, raw materials in the tank body can be blown away through the upward airflow, meanwhile, the raw materials in the tank body are intermittently blown away, the stirring and mixing effect of the stirring rod on the raw materials can be improved, and the stirring efficiency is improved. Furthermore, the raw materials can be fully mixed in the processing device.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane industry technology, and in particular to an isocyanate trimerization catalyst processing device for use in the polyurethane industry. Background Technology

[0002] Polyurethane is a polymer material with excellent mechanical properties, formed by the condensation reaction of polyols and polyisocyanates. Flexible polyurethane primarily has a thermoplastic linear structure, offering better stability, chemical resistance, resilience, and mechanical properties than PVC foam, with less compression deformation. It also provides good thermal insulation, sound insulation, shock resistance, and toxicity protection. Therefore, it is used as packaging, sound insulation, and filtration materials. Rigid polyurethane is lightweight, has excellent sound and thermal insulation properties, is chemically resistant, has good electrical properties, is easy to process, and has low water absorption. It is mainly used in construction, automotive, and aerospace industries as structural materials for thermal insulation.

[0003] Currently, when processing isocyanate trimer catalysts required in the polyurethane manufacturing process, the required raw materials are usually first put into the processing device. Then, the various raw materials required for processing are mixed together by a rotating stirring rod inside the processing device. However, since the processing device only mixes the raw materials by rotating the stirring rod, the raw materials are not mixed sufficiently, which will have an adverse effect on the processing of isocyanate trimer catalysts. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as: currently, when processing isocyanate trimer catalysts required in the polyurethane manufacturing process, the required raw materials are usually first put into the processing device, and then the multiple raw materials required for processing are mixed together by a rotating stirring rod inside the processing device. However, since the processing device only mixes the raw materials by rotating the stirring rod, the mixing of the raw materials is not sufficient, which will have an adverse effect on the processing of isocyanate trimer catalysts. Therefore, this invention proposes an isocyanate trimer catalyst processing device for the polyurethane industry.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An isocyanate trimer catalyst processing apparatus for use in the polyurethane industry includes a tank. A through-hole is formed on the upper surface of the tank. A stirring mechanism is fixedly connected to the inner wall of the through-hole and the upper surface of the tank. A feed pipe is fixedly connected to the upper surface of the tank. A first valve is fixedly connected to the top end of the feed pipe, and a feed hopper is fixedly connected to the top end of the first valve. A discharge pipe is fixedly connected to the bottom of the tank. A second valve is fixedly connected to the bottom end of the discharge pipe. An air inlet hood is fixedly connected to the surface of the discharge pipe and the bottom of the tank. A gas equalization plate is fixedly connected to the inner wall of the air inlet hood and the surface of the discharge pipe. An air blowing mechanism is fixedly connected to the left side of the air inlet hood. An air inlet hole is formed at the bottom of the tank. A support mesh is fixedly connected to the inner wall of the air inlet hole. An exhaust pipe is fixedly connected to the upper surface of the tank. A support leg is fixedly connected to the bottom of the air inlet hood.

[0007] Preferably, the stirring mechanism includes a drive motor, the bottom of which is fixedly connected to the upper surface of the tank, a rotating shaft is fixedly connected to the output end of the drive motor, bearings are fixedly connected to the surface of the rotating shaft and the inner wall of the through hole, and a stirring rod is fixedly connected to the surface of the rotating shaft.

[0008] Preferably, the air distribution plate includes a partition, the inner wall of which is fixedly connected to the surface of the discharge pipe, and the surface of which is fixedly connected to the inner wall of the air inlet hood. A first vent hole is provided inside the partition, and an elastic rubber sheet is adhered to the inner wall of the first vent hole. A second vent hole is provided inside the elastic rubber sheet, and a sealing ball is attached to the inner wall of the second vent hole. A mountain-shaped column is fixedly connected to the bottom of the sealing ball and the bottom of the partition.

[0009] Preferably, the air blowing mechanism includes an air inlet pipe, the right end of which is fixedly connected to the left side of the air inlet hood, and the left end of which is fixedly connected to a blower.

[0010] Preferably, a base plate is fixedly connected to the bottom of the blower and the bottom of the support leg, and a dust cover is fixedly connected to the upper surface of the base plate and the surface of the air inlet pipe, with the blower located inside the dust cover.

[0011] Preferably, the exhaust pipe has an air outlet on its surface, a cylindrical filter element is fitted to the inner wall of the exhaust pipe, a sealing iron plate is fixedly connected to the upper surface of the cylindrical filter element, a magnetic ring is fitted to the bottom of the sealing iron plate, and the inner wall of the magnetic ring is fixedly connected to the surface of the exhaust pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) This utility model, through the cooperation of the air inlet hood, air distribution plate, air blowing mechanism, air inlet hole and support net, enables the bottom of the tank to generate an upward airflow evenly, and the upward airflow can blow away the raw materials in the tank. At the same time, by intermittently blowing away the raw materials in the tank, the stirring rod can improve the stirring and mixing effect of the raw materials, thereby enabling the raw materials to be fully mixed in the processing device.

[0014] (2) This utility model can filter the gas discharged from the exhaust pipe through the cylindrical filter element, so that the gas discharged from the exhaust pipe will not pollute the surrounding environment. At the same time, the combination of the sealing iron plate and the magnetic ring makes it easier to disassemble and assemble the cylindrical filter element and the exhaust pipe, thus making it easier for users to replace the cylindrical filter element. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 for Figure 1 Enlarged view at point B in the middle;

[0018] Figure 4 This is a top view of the tank body in this utility model;

[0019] Figure 5 This is a bottom view of the tank body in this utility model;

[0020] Figure 6 This is a schematic diagram of the stirring mechanism in this utility model;

[0021] Figure 7 This is a top view of the partition plate of this utility model;

[0022] Figure 8 This is a front view of the exhaust pipe in this utility model;

[0023] Figure 9 This is a bottom view of the cylindrical filter element of this utility model.

[0024] In the diagram: 1. Tank body; 2. Through hole; 3. Stirring mechanism; 31. Drive motor; 32. Rotating shaft; 33. Bearing; 34. Stirring rod; 4. Feed pipe; 5. First valve; 6. Feed hopper; 7. Discharge pipe; 8. Second valve; 9. Air inlet hood; 10. Air distribution plate; 101. Baffle plate; 102. First vent; 103. Elastic rubber sheet; 104. Second vent; 105. Sealing ball; 106. Mountain-shaped column; 11. Air blowing mechanism; 111. Air inlet pipe; 112. Blower; 12. Air inlet; 13. Support net; 14. Exhaust pipe; 15. Support leg; 16. Base plate; 17. Dust cover; 18. Air outlet; 19. Cylindrical filter element; 20. Sealing iron plate; 21. Magnetic ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example 1:

[0028] Reference Figure 1-7A processing apparatus for isocyanate trimerization catalyst in the polyurethane industry includes a tank 1. A through-hole 2 is formed on the upper surface of the tank 1. A stirring mechanism 3 is fixedly connected to both the inner wall of the through-hole 2 and the upper surface of the tank 1. A feed pipe 4 is fixedly connected to the upper surface of the tank 1. A first valve 5 is fixedly connected to the top end of the feed pipe 4. A feed hopper 6 is fixedly connected to the top end of the first valve 5. The first valve 5 controls the connection or disconnection between the feed pipe 4 and the feed hopper 6. A discharge pipe 7 is fixedly connected to the bottom of the tank 1. A second valve 8 is fixedly connected to the bottom end of the discharge pipe 7. The second valve 8 controls the discharge pipe connection. The switch of 7, the surface of the discharge pipe 7 and the bottom of the tank 1 are all fixedly connected to the air inlet hood 9, the inner wall of the air inlet hood 9 and the surface of the discharge pipe 7 are all fixedly connected to the air distribution plate 10, the left side of the air inlet hood 9 is fixedly connected to the air blowing mechanism 11, the bottom of the tank 1 is provided with an air inlet hole 12, the inner wall of the air inlet hole 12 is fixedly connected to the support net 13, the support net 13 prevents the raw material from entering the air inlet hood 9 through the air inlet hole 12, at the same time, the air in the air inlet hood 9 can enter the tank 1 through the support net 13, the upper surface of the tank 1 is fixedly connected to the exhaust pipe 14, and the bottom of the air inlet hood 9 is fixedly connected to the support leg 15.

[0029] The stirring mechanism 3 includes a drive motor 31. The bottom of the drive motor 31 is fixedly connected to the upper surface of the tank 1. A rotating shaft 32 is fixedly connected to the output end of the drive motor 31. Bearings 33 are fixedly connected to the surface of the rotating shaft 32 and the inner wall of the through hole 2. A stirring rod 34 is fixedly connected to the surface of the rotating shaft 32. The drive motor 31 can drive the stirring rod 34 to rotate, and the raw materials in the tank 1 can be stirred by rotating the stirring rod 34.

[0030] The air distribution plate 10 includes a partition 101. The inner wall of the partition 101 is fixedly connected to the surface of the discharge pipe 7, and the surface of the partition 101 is fixedly connected to the inner wall of the air inlet hood 9. A first vent hole 102 is provided inside the partition 101. An elastic rubber sheet 103 is adhered to the inner wall of the first vent hole 102. A second vent hole 104 is provided inside the elastic rubber sheet 103. A sealing ball 105 is attached to the inner wall of the second vent hole 104. The bottom of the sealing ball 105 and the bottom of the partition 101 are both fixedly connected. A mountain-shaped column 106 is provided. The elasticity of the elastic rubber sheet 103 makes the sealing ball 105 and the second vent 104 in close contact and seals the second vent 104. When the air pressure below the partition 101 is greater than the elasticity of the elastic rubber sheet 103, the air pressure causes the elastic rubber sheet 103 to deform and create a gap between the second vent 104 and the sealing ball 105. At this time, the air below the partition 101 can be evenly discharged upward through the second vent 104.

[0031] The air blowing mechanism 11 includes an air inlet pipe 111. The right end of the air inlet pipe 111 is fixedly connected to the left side of the air inlet hood 9, and the left end of the air inlet pipe 111 is fixedly connected to a blower 112, which blows air into the air inlet hood 9.

[0032] Example 2:

[0033] Reference Figure 1 A base plate 16 is fixedly connected to the bottom of the blower 112 and the bottom of the support leg 15. A dust cover 17 is fixedly connected to the upper surface of the base plate 16 and the surface of the air inlet pipe 111. The blower 112 is located inside the dust cover 17, and the dust cover 17 prevents dust from entering the blower 112.

[0034] Example 3:

[0035] Reference Figure 1-9 The exhaust pipe 14 has an air outlet 18 on its surface. A cylindrical filter element 19 is fitted to the inner wall of the exhaust pipe 14. A sealing iron plate 20 is fixedly connected to the upper surface of the cylindrical filter element 19. A magnetic ring 21 is fitted to the bottom of the sealing iron plate 20. The inner wall of the magnetic ring 21 is fixedly connected to the surface of the exhaust pipe 14. The cylindrical filter element 19 can filter the gas discharged from the exhaust pipe 14, so that the gas discharged from the exhaust pipe 14 will not pollute the surrounding environment. At the same time, the cooperation between the sealing iron plate 20 and the magnetic ring 21 makes it easier to install and remove the cylindrical filter element 19 from the exhaust pipe 14, thus making it easier for users to replace the cylindrical filter element 19.

[0036] In this invention, when using the device, the user first connects the feed pipe 4 and the feed hopper 6 by opening the first valve 5. Then, the raw materials are fed into the tank 1 through the feed hopper 6 and the feed pipe 4. After the raw materials are fed in, the first valve 5 is closed, and the top of the feed pipe 4 is closed. Then, the stirring rod 34 is rotated by turning on the drive motor 31, and the raw materials in the tank 1 are stirred and mixed by the rotating stirring rod 34. At the same time, air is blown into the air intake hood 9 by the blower 112, and the air pressure below the partition 101 is increased. When the air pressure below the partition 101 is greater than the elastic force of the elastic rubber sheet 103, the elastic rubber sheet 103 is deformed by the air pressure, and the second A gap is created between the vent 104 and the sealing ball 105. At this time, the air below the partition 101 can be evenly discharged upward through the second vent 104, and the upward airflow can disperse the raw materials in the tank 1. At the same time, by switching the blower 112 on and off through the gap, an upward airflow is intermittently generated in the tank 1, and the raw materials in the tank 1 are intermittently dispersed, which can improve the mixing effect of the stirring rod 34 on the raw materials. Meanwhile, the air in the tank 1 can be discharged through the exhaust pipe 14, and the air discharged through the exhaust pipe 14 is filtered by the cylindrical filter element 19. When the raw materials are mixed, the second valve 8 is opened, and the mixed material is discharged through the discharge pipe 7.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. An apparatus for processing isocyanate trimer catalyst in the polyurethane industry, comprising a tank (1), characterized in that, The upper surface of the tank (1) is provided with a through hole (2). The inner wall of the through hole (2) and the upper surface of the tank (1) are both fixedly connected to a stirring mechanism (3). The upper surface of the tank (1) is fixedly connected to a feed pipe (4). The top end of the feed pipe (4) is fixedly connected to a first valve (5). The top end of the first valve (5) is fixedly connected to a feed hopper (6). The bottom of the tank (1) is fixedly connected to a discharge pipe (7). The bottom end of the discharge pipe (7) is fixedly connected to a second valve (8). An air inlet hood (9) is fixedly connected to the surface of the tank (1) and the bottom of the tank (1). An air equalization plate (10) is fixedly connected to the inner wall of the air inlet hood (9) and the surface of the discharge pipe (7). An air blowing mechanism (11) is fixedly connected to the left side of the air inlet hood (9). An air inlet hole (12) is opened at the bottom of the tank (1). A support net (13) is fixedly connected to the inner wall of the air inlet hole (12). An exhaust pipe (14) is fixedly connected to the upper surface of the tank (1). A support leg (15) is fixedly connected to the bottom of the air inlet hood (9).

2. The apparatus for processing isocyanate trimer catalyst in the polyurethane industry according to claim 1, characterized in that, The stirring mechanism (3) includes a drive motor (31), the bottom of which is fixedly connected to the upper surface of the tank (1), and the output end of the drive motor (31) is fixedly connected to a rotating shaft (32). The surface of the rotating shaft (32) and the inner wall of the through hole (2) are both fixedly connected to bearings (33), and the surface of the rotating shaft (32) is fixedly connected to a stirring rod (34).

3. The apparatus for processing isocyanate trimer catalyst in the polyurethane industry according to claim 1, characterized in that, The gas equalization plate (10) includes a partition (101). The inner wall of the partition (101) is fixedly connected to the surface of the discharge pipe (7). The surface of the partition (101) is fixedly connected to the inner wall of the air inlet hood (9). A first vent hole (102) is provided inside the partition (101). An elastic rubber sheet (103) is bonded to the inner wall of the first vent hole (102). A second vent hole (104) is provided inside the elastic rubber sheet (103). A sealing ball (105) is attached to the inner wall of the second vent hole (104). A mountain-shaped column (106) is fixedly connected to the bottom of the sealing ball (105) and the bottom of the partition (101).

4. The apparatus for processing isocyanate trimer catalyst in the polyurethane industry according to claim 1, characterized in that, The air blowing mechanism (11) includes an air inlet pipe (111), the right end of which is fixedly connected to the left side of the air inlet hood (9), and the left end of which is fixedly connected to a blower (112).

5. The apparatus for processing isocyanate trimer catalyst in the polyurethane industry according to claim 4, characterized in that, The bottom of the blower (112) and the bottom of the support leg (15) are both fixedly connected to a base plate (16). The upper surface of the base plate (16) and the surface of the air inlet pipe (111) are both fixedly connected to a dust cover (17). The blower (112) is located inside the dust cover (17).

6. The apparatus for processing isocyanate trimer catalyst in the polyurethane industry according to claim 1, characterized in that, The exhaust pipe (14) has an air outlet (18) on its surface. A cylindrical filter element (19) is attached to the inner wall of the exhaust pipe (14). A sealing iron plate (20) is fixedly connected to the upper surface of the cylindrical filter element (19). A magnetic ring (21) is attached to the bottom of the sealing iron plate (20). The inner wall of the magnetic ring (21) is fixedly connected to the surface of the exhaust pipe (14).

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