Multi-layer filtering device for producing polyurethane foam joint mixture silicone oil

Abstract

The utility model discloses a multilayer filtering device for producing polyurethane foam caulking agent silicone oil, which comprises a top box and a bottom box, the top box and the bottom box are communicated, the top box and the bottom box are both hollow cylindrical structures, a first filtering mechanism is arranged in the top box, and a second filtering mechanism is arranged in the bottom box. A second filtering mechanism is mounted in the bottom box, the first filtering mechanism is composed of a motor, a rotating shaft and a flow guide table, and the second filtering mechanism is composed of a mounting block, a collecting plate and a filter screen cylinder. Silicone oil gradually falls from the wall surface of the flow guide table, the motor drives the flow guide table to rotate at the bearing, and the silicone oil has viscosity, so that the silicone oil is gradually distributed at the top of the filter screen plate along with the rotation of the flow guide table, the silicone oil can fall under pressure during scraping, the filtering efficiency is improved, and the service life of the filter screen plate is prolonged. The scattering position of the silicone oil can be dispersed, so that impurities are prevented from being blocked at a single filter screen layer.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to a multi-layer filtering device used for the production of polyurethane foam caulking agent silicone oil. Background Art

[0002] Polyurethane foam sealant silicone oil is a foam stabilizer specially used for rigid polyurethane foam sealant, providing excellent emulsification ability, uniform and fine bubbles and good thermal conductivity. Polyurethane foam sealant is a special polyurethane product that loads polyurethane prepolymer, foaming agent, catalyst and other components into a pressure-resistant aerosol can. Silicone oil plays several important roles in polyurethane foam sealant. By reducing surface tension, it helps to form uniform bubbles and stable bubble structure and reduce gas diffusion. Silicone oil can also emulsify incompatible ingredients in the formula so that the components can be well soluble, thereby increasing the storage stability of the system. Before processing the silicone oil, it is necessary to quickly filter the silicone oil before adding it to prevent impurities from entering the finished sealant.

[0003] Currently, for silicone oil filtration treatment, the silicone oil is poured into the filter layer, allowing the silicone oil to gradually penetrate and fall, and the impurities are on the filter surface of the filter layer. Since silicone oil has a certain viscosity, the silicone oil containing impurities can easily remain on the surface of the filter layer for a long time, blocking the subsequent falling of the silicone oil and reducing the filtration treatment efficiency. Utility Model Content

[0004] In order to solve the problems mentioned in the above background technology, the utility model provides a multi-layer filtering device for the production of silicone oil for polyurethane foam sealant.

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

[0006] A multi-layer filtering device for the production of silicone oil for polyurethane foam caulking agent, comprising a top box and a bottom box, the top box and the bottom box are both cylindrical structures with hollow interiors, the top box and the bottom box are in a connected state, a top cover is installed on the top of the top box, an oil inlet pipe is installed on the top of the top cover, a first filtering mechanism is installed inside the top box, a second filtering mechanism is installed inside the bottom box, the oil inlet pipe is located above the first filtering mechanism, the bottom of the bottom box is connected to a collecting box, an oil drain pipe is installed on the side of the collecting box, and the oil drain pipe is connected to an external pipeline;

[0007] Furthermore, the first filtering mechanism is composed of a motor, a rotating shaft and a guide table, the motor is connected to the guide table through the rotating shaft, the guide table is a frustum structure as a whole, and the second filtering mechanism is composed of a mounting block, a collecting plate and a filter cylinder.

[0008] Furthermore, the top box and the bottom box are both cylindrical structures with hollow interiors, the outer surface of the guide platform is installed with partitions in a ring array, and the guide channel is between adjacent partitions, the oil inlet pipe is arranged opposite to the top of the guide channel, and a scraper is installed at the bottom of the partition facing the inner wall of the top box, and a filter plate is installed at the inner bottom of the top box, and the filter plate is installed between the first filtering mechanism and the second filtering mechanism. The filter plate is in a circular ring structure, and a bearing is installed in the middle of the filter plate, and the bearing is connected to the bottom of the guide platform, and the bottom of the scraper is in contact with the top of the filter plate.

[0009] Furthermore, the second filtering mechanism also includes a mounting block, the top of the mounting block is installed and connected to the bottom of the guide platform, the mounting block is an overall cylindrical structure, the outer surface of the mounting rod is evenly installed with brush bodies, the bottom of the filter plate is installed with a collecting plate, the collecting plate is an inverted frustum structure as a whole, the bottom of the collecting plate is sealed and connected to the filter cylinder, and the mounting rod is inside the filter cylinder.

[0010] Furthermore, the bottom of the filter cylinder is sealed, and the sealing end is threadedly connected to the filter cylinder.

[0011] Furthermore, the bottom of the scraper is a curved structure, and the scraper is made of alloy steel.

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

[0013] 1. The utility model allows silicone oil to gradually fall from the wall of the guide table, and the guide table is driven to rotate at the bearing by a motor. Since the silicone oil has viscosity, as the guide table rotates, the silicone oil is gradually distributed on the top of the filter plate, and the scraper simultaneously processes the thin layer of silicone oil on the top of the filter plate, which helps to make the silicone oil fall under pressure during scraping, improves the filtration efficiency, and helps to disperse the scattered positions of the silicone oil, thereby avoiding impurities from being blocked in a single filter layer.

[0014] 2. In the utility model, the silicone oil after the first filtration enters the filter cylinder through the collecting plate. When the guide table rotates, the mounting rod and the brush body are synchronously driven to rotate. The brush body is used to brush off the impurities attached to the filter cylinder, which helps the silicone oil to fall, further improves the processing efficiency, and avoids the problem of impurity blockage. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a schematic diagram of the internal structure of the top box and the bottom box of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the first filtering mechanism of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the second filtering mechanism of the utility model.

[0019] In the figure: 1. top box; 2. top cover; 3. oil inlet pipe; 4. bottom box; 5. collecting box; 6. oil drain pipe; 7. first filtering mechanism; 8. motor; 9. rotating shaft; 10. guide table; 11. partition; 12. scraper; 13. filter plate; 14. bearing; 15. second filtering mechanism; 16. mounting block; 17. mounting rod; 18. brush body; 19. collecting plate; 20. filter cylinder. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0021] See also Figure 1-4 The utility model provides a multi-layer filtering device for the production of silicone oil for polyurethane foam sealant, comprising a top box 1 and a bottom box 4, the top box 1 and the bottom box 4 are in a connected state, a top cover 2 is installed on the top of the top box 1, an oil inlet pipe 3 is installed on the top of the top cover 2, a first filtering mechanism 7 is installed inside the top box 1, a second filtering mechanism 15 is installed inside the bottom box 4, the oil inlet pipe 3 is located above the first filtering mechanism 7, the bottom of the bottom box 4 is connected to the collecting box 5, an oil drain pipe 6 is installed on the side of the collecting box 5, and the oil drain pipe 6 is connected to an external pipeline.

[0022] like Figure 3-4 As shown, the first filtering mechanism 5 is composed of a motor 8, a rotating shaft 9 and a guide platform 10. The motor 8 is connected to the top of the guide platform 10 through the rotating shaft 9. The guide platform 10 is a frustum structure as a whole. The outer surface of the guide platform 10 is installed with partitions 11 in a ring array. The guide channel is between adjacent partitions 11. The oil inlet pipe 3 is arranged opposite to the top of the guide channel. A scraper 12 is installed at the bottom of the partition 11 facing the inner wall of the top box 1. A filter plate 13 is installed at the inner bottom of the top box 1. The filter plate 13 is a circular ring structure. A bearing 14 is installed in the middle of the filter plate 13. The bearing 14 is connected to the bottom of the guide platform 10. The bottom of the scraper 12 fits with the top of the filter plate 13. The bottom of the scraper 55 is an arc structure, and the scraper 55 is made of alloy steel. During operation, the silicone oil gradually falls from the wall of the guide table 10, and the guide table 10 is driven by the motor 8 to rotate at the bearing 14. Since the silicone oil has viscosity, as the guide table 10 rotates, the silicone oil is gradually distributed on the top of the filter plate 13, and the scraper 12 simultaneously processes the thin layer of silicone oil on the top of the filter plate 13, which helps to make the silicone oil fall under pressure during scraping, thereby improving the filtration efficiency and helping to disperse the scattered positions of the silicone oil, thereby avoiding impurities from being blocked in a single filter layer.

[0023] like Figure 3-4As shown, the second filtering mechanism 15 is composed of a mounting block 16, a mounting rod 17, a collecting plate 19 and a filter cylinder 20. The mounting block 16 is installed and connected to the bottom of the guide platform 10. The mounting block 16 is a cylindrical structure as a whole, and a mounting rod 17 is installed at the center of its bottom. The outer surface of the mounting rod 17 is evenly installed with a brush body 18. The bottom of the filter plate 13 is installed and connected to the collecting plate 19. The collecting plate 19 is at the top of the bottom box 4. The collecting plate 19 is an inverted frustum structure as a whole. The bottom of the collecting plate 19 is sealed and connected to the filter cylinder 20. The mounting rod 16 is inside the filter cylinder 20. The bottom of the filter cylinder 20 is sealed, and the sealing end is threadedly installed and connected to the filter cylinder 20. The purpose is to facilitate the removal of the sealing end of the filter cylinder 20 to clean up impurities. During operation, the silicone oil after the first filtration enters the filter cylinder 20 through the collecting plate 19. When the guide platform 10 rotates, the mounting rod 17 and the brush body 18 are synchronously driven to rotate. The brush body 18 prevents the filter cylinder 20 from being brushed away by the attached impurities, and at the same time helps the silicone oil to fall, further improving the processing efficiency and avoiding the problem of impurity blockage.

[0024] like Figure 1-4 As shown, when the device is working, the silicone oil gradually falls from the wall of the guide table 10, and the guide table 10 is driven by the motor 8 to rotate at the bearing 14. Since the silicone oil has viscosity, as the guide table 10 rotates, the silicone oil is gradually distributed on the top of the filter plate 13, and the scraper 12 is synchronously used to treat the thin layer of silicone oil on the top of the filter plate 13, which helps to make the silicone oil fall under pressure during scraping, improves the filtration efficiency, and helps to disperse the scattered position of the silicone oil, thereby avoiding impurities from being blocked in a single filter layer. The silicone oil after the first filtration enters the filter cylinder 20 through the collecting plate 19. When the guide table 10 rotates, the mounting rod 17 and the brush body 18 are synchronously driven to rotate, and the brush body 18 prevents the filter cylinder 20 from being brushed away by the impurities attached, and at the same time helps the silicone oil to fall, further improving the processing efficiency and avoiding the problem of impurity blockage.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-layer filtering device for the production of silicone oil for polyurethane foam sealants, comprising a top box (1) and a bottom box (4), characterized in that: The top box (1) and the bottom box (4) are in a connected state, a top cover (2) is installed on the top of the top box (1), an oil inlet pipe (3) is installed on the top of the top cover (2), a first filter mechanism (7) is installed inside the top box (1), a second filter mechanism (15) is installed inside the bottom box (4), the oil inlet pipe (3) is located above the first filter mechanism (7), the bottom of the bottom box (4) is connected to the collection box (5), an oil drain pipe (6) is installed on the side of the collection box (5), and the oil drain pipe (6) is connected to an external pipeline; The first filtering mechanism (7) is composed of a motor (8), a rotating shaft (9) and a guide platform (10); the motor (8) is connected to the guide platform (10) via the rotating shaft (9); the guide platform (10) is a frustum structure as a whole; and the second filtering mechanism (15) is composed of a mounting rod (17), a collecting plate (19) and a filter cylinder (20).

2. A multi-layer filtration device for the production of polyurethane foam sealant silicone oil according to claim 1, characterized in that: The top box (1) and the bottom box (4) are both cylindrical structures with hollow interiors. The outer surface of the guide platform (10) is provided with partitions (11) in an annular array. A guide channel is formed between adjacent partitions (11). The oil inlet pipe (3) is arranged directly opposite the top of the guide channel. A scraper (12) is installed at the bottom of the partition (11) facing the inner wall of the top box (1). A filter plate (13) is installed at the inner bottom of the top box (1). The filter plate (13) is installed between the first filtering mechanism (7) and the second filtering mechanism (15). The filter plate (13) is in an annular structure. A bearing (14) is installed in the middle of the filter plate (13). The bearing (14) is connected to the bottom of the guide platform (10). The bottom of the scraper (12) is in contact with the top of the filter plate (13).

3. A multi-layer filtering device for the production of polyurethane foam sealant silicone oil according to claim 2, characterized in that: The second filtering mechanism (15) further comprises a mounting block (16), the top of which is mounted and connected to the bottom of the guide platform (10), the mounting block (16) being of a cylindrical structure as a whole, a brush body (18) being evenly mounted on the outer surface of the mounting rod (17), a collecting plate (19) being mounted on the bottom of the filter plate (13), the collecting plate (19) being of an inverted frustum structure as a whole, the bottom of the collecting plate (19) being of a sealing connection to the filter cylinder (20), and the mounting rod (17) being located inside the filter cylinder (20).

4. A multi-layer filtration device for the production of polyurethane foam sealant silicone oil according to claim 3, characterized in that: The bottom of the filter cylinder (20) is provided with a seal, and the seal end is threadedly mounted and connected to the filter cylinder (20).

5. A multi-layer filtering device for the production of polyurethane foam sealant silicone oil according to claim 2, characterized in that: The bottom of the scraper (12) is in a curved structure, and the scraper (12) is made of alloy steel.

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