High vacuum control system suitable for phenyl silicone rubber production

Abstract

The utility model relates to a high vacuum control system suitable for phenyl silicone rubber production, which comprises a vacuum pump and a cooler connected with an air outlet at the top of a vacuum tank through a pipeline, and is characterized in that an inlet of the vacuum pump is connected with a first longitudinal pipeline, and the lower end of the first longitudinal pipeline is connected with a broken-line-shaped pipeline; the lower end of the second longitudinal pipeline is connected with a drain valve, the middle of the second longitudinal pipeline is connected with a horizontal branch, the other end of the horizontal branch is connected with a third longitudinal pipeline, the lower end of the third longitudinal pipeline is communicated with the top of a storage box, and the top of the storage box is communicated with a discharging pipeline of a vacuum tank; a first pressure gauge is arranged at the top of the vacuum tank, a second pressure gauge is arranged at the top of the storage box, and a third pressure gauge is arranged on the first longitudinal pipeline. According to the system, the problem that discharging is not thorough or a discharging pipeline is blocked after phenyl silicone rubber dehydration treatment is solved, it is guaranteed that discharging is clean and thorough, and meanwhile the discharging efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of phenyl silicone rubber production equipment, in particular to a high vacuum control system suitable for the production of phenyl silicone rubber. Background Art

[0002] During the production process of phenyl silicone rubber, a vacuum control system is required to control the negative pressure in the vacuum tank, so that the heated material enters the vacuum tank and is sprayed out in the form of a spray through the nozzle of the atomizer, thereby expanding the contact area of ​​the material in the vacuum. The moisture in the material is quickly vaporized under the conditions of high heat, high vacuum and high pumping speed, achieving the purpose of efficient water removal. The top of the vacuum tank is connected to the cooler through a pipeline, and the cooler is connected to the vacuum pump through a pipeline. The vacuum pump is started to form a negative pressure in the cooler and the vacuum tank, so that the evaporated gas in the vacuum tank is introduced into the cooler to form a coolant.

[0003] Finally, the phenyl silicone rubber granules are discharged from the vacuum tank after accumulating a set amount in the vacuum tank. However, the following problems exist during the unloading process: some materials are prone to stick to each other due to residual moisture, and are also prone to stick to the inner wall of the vacuum tank, which is not convenient for complete unloading. At the same time, the materials are prone to stick to the inner wall of the pipe when passing through the unloading pipeline, affecting the unloading speed and even blocking the unloading pipeline. Utility Model Content

[0004] The purpose of the utility model is to provide a high vacuum control system suitable for the production of phenyl silicone rubber with a reasonable structure and reliable use, so as to solve the problem of incomplete unloading or blockage of the unloading pipeline after dehydration treatment of phenyl silicone rubber, ensure clean and thorough unloading, and significantly improve the unloading efficiency.

[0005] The technical solution of the utility model is:

[0006] A high vacuum control system suitable for the production of phenyl silicone rubber comprises a vacuum pump, wherein the vacuum pump is connected to a cooler by an inlet pipeline, and the cooler is connected to an air outlet at the top of a vacuum tank by a pipeline, and the technical key points are as follows: the inlet of the vacuum pump is further connected to a first longitudinal pipeline, the lower end of the first longitudinal pipeline is connected to a zigzag pipeline, the lower end of the zigzag pipeline is connected to a second longitudinal pipeline, the lower end of the second longitudinal pipeline is connected to a steam trap, the middle part of the second longitudinal pipeline is connected to a horizontal branch, the other end of the horizontal branch is connected to a third longitudinal pipeline, the lower end of the third longitudinal pipeline is communicated with the top of a material storage box, the top of the material storage box is communicated with a discharge pipeline of the vacuum tank, a first pressure gauge is provided on the top of the vacuum tank, a second pressure gauge is provided on the top of the material storage box, and a third pressure gauge is provided on the first longitudinal pipeline.

[0007] The above-mentioned high vacuum control system suitable for the production of phenyl silicone rubber has a filter screen wrapped around the lower end of the third longitudinal pipeline in the storage box, a fourth longitudinal pipeline inserted into the top of the storage box, and the upper end of the fourth longitudinal pipeline is connected to the gas generator.

[0008] The above-mentioned high vacuum control system suitable for the production of phenyl silicone rubber is provided with a first control valve at the upper end of the first longitudinal pipeline, a second control valve at the lower end of the third longitudinal pipeline, a third control valve on the discharge pipeline, a fourth control valve at the top air outlet of the vacuum tank, and a fifth control valve at the inlet pipeline of the vacuum pump near the cooler.

[0009] The above-mentioned high vacuum control system suitable for the production of phenyl silicone rubber, the zigzag pipeline includes multiple first oblique downward pipelines, and a second oblique downward pipeline connected between two adjacent first oblique downward pipelines, the first oblique downward pipeline and the second oblique downward pipeline form an acute angle, the upper end of the topmost first oblique downward pipeline is connected to the lower end of the first longitudinal pipeline, and the lower end of the bottommost first oblique downward pipeline is connected to the upper end of the second longitudinal pipeline.

[0010] The high vacuum control system suitable for the production of phenyl silicone rubber is provided with a heater on the outside of the feed pipeline of the vacuum tank, and the vacuum tank is further provided with a heating interlayer.

[0011] The beneficial effects of the utility model are:

[0012] 1. On the one hand, a vacuum pump is used to connect with the vacuum tank through a cooler to draw out the evaporation gas to achieve the purpose of dehydration. On the other hand, after the dehydration operation is completed, the first longitudinal pipeline, the folded line pipeline, the second longitudinal pipeline, the horizontal pipeline, and the third longitudinal pipeline are connected to the storage box. The vacuum pump forms a negative pressure in the storage box, and the material in the vacuum tank is drawn out through the discharge pipeline to achieve the purpose of strengthening the discharge. The utility model uses negative pressure gravity to solve the problem of incomplete discharge or blockage of the discharge pipeline after the phenyl silicone rubber is dehydrated, ensuring clean and thorough discharge, while significantly improving the discharge efficiency.

[0013] 2. After the discharged material enters the storage box, some gas will be generated. The zigzag pipeline is used to achieve the purpose of cooling. The liquid droplets mixed in the gas are intercepted by the zigzag pipeline and then reach the steam trap through the second longitudinal pipeline to prevent the liquid from entering the vacuum pump and affecting the operation of the vacuum pump.

[0014] 3. A filter is provided inside the storage box to prevent solid particles from being introduced into the third longitudinal pipeline, and a fourth longitudinal pipeline is provided on the top of the storage box. The upper end of the fourth longitudinal pipeline is connected to a gas generator. When the filter is blocked, the gas generator generates gas to blow the filter inside the filter to achieve the purpose of clearing the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] In the figure: 1. feed pipeline, 2. heater, 3. vacuum tank, 4. fourth control valve, 5. first pressure gauge, 6. cooler, 7. fifth control valve, 8. vacuum pump, 9. first control valve, 10. third pressure gauge, 11. first longitudinal pipeline, 12. zigzag pipeline, 13. second longitudinal pipeline, 14. steam trap, 15. third longitudinal pipeline, 16. horizontal branch, 17. second control valve, 18. gas generator, 19. third control valve, 20. storage box, 21. filter, 22. second pressure gauge. DETAILED DESCRIPTION

[0017] The utility model is described in detail according to the accompanying drawings of the specification.

[0018] like Figure 1 As shown, the high vacuum control system suitable for the production of phenyl silicone rubber includes a vacuum pump 8, which is connected to a cooler 6 via an inlet pipeline, and the cooler 6 is connected to an air outlet at the top of a vacuum tank 3 via a pipeline.

[0019] Among them, the inlet of the vacuum pump 8 is also connected to a first longitudinal pipeline 11, the lower end of the first longitudinal pipeline 11 is connected to a zigzag pipeline 12, the lower end of the zigzag pipeline 12 is connected to a second longitudinal pipeline 13, the lower end of the second longitudinal pipeline 13 is connected to a steam trap 14, the middle of the second longitudinal pipeline 13 is connected to a horizontal branch 16, the other end of the horizontal branch 16 is connected to a third longitudinal pipeline 15, the lower end of the third longitudinal pipeline 15 is connected to the top of the storage box 20, and the top of the storage box 20 is connected to the unloading pipeline of the vacuum tank 3.

[0020] In this embodiment, the zigzag pipeline 12 includes a plurality of first oblique downward pipelines, and a second oblique downward pipeline connected between two adjacent first oblique downward pipelines, the first oblique downward pipeline and the second oblique downward pipeline are at an acute angle, the upper end of the top first oblique downward pipeline is connected to the lower end of the first longitudinal pipeline, and the lower end of the bottom first oblique downward pipeline is connected to the upper end of the second longitudinal pipeline. The storage box 20 is provided with a filter screen 21 surrounding the lower end of the third longitudinal pipeline 15, and the top of the storage box 20 is provided with a fourth longitudinal pipeline inserted therein, and the upper end of the fourth longitudinal pipeline is connected to the gas generator 18. A heater 2 is provided on the outside of the feed pipeline 1 of the vacuum tank 3, and the vacuum tank 3 is further provided with a heating interlayer.

[0021] The top of the vacuum tank 3 is provided with a first pressure gauge 5, the top of the storage box 20 is provided with a second pressure gauge 22, and the first longitudinal pipeline 11 is provided with a third pressure gauge 10. The upper end of the first longitudinal pipeline 11 is provided with a first control valve 9, the lower end of the third longitudinal pipeline 15 is provided with a second control valve 17, the discharge pipeline is provided with a third control valve 19, the top of the vacuum tank 3 is provided with a fourth control valve 4, and the inlet pipeline of the vacuum pump 8 is provided with a fifth control valve 7 near the cooler 6.

[0022] Working principle:

[0023] 1. Dehydration treatment: open the fifth control valve 7 and the fourth control valve 4, and close the first control valve 9, the second control valve 17 and the third control valve 19. Start the vacuum pump 8 to extract the air in the vacuum tank 3 to form a vacuum. The material enters the sprayer arranged in the vacuum tank 3 through the feed pipe 1 of the vacuum tank 3, and then sprays out in the form of spray to increase the contact area with the vacuum. The moisture in the material is quickly vaporized under the conditions of high heat, high vacuum, large surface and high pumping speed. The moisture evaporates rapidly into water vapor and is continuously sucked into the cooler 6 by the vacuum pump 8. The water vapor is cooled to form water and discharged into the water storage tank.

[0024] 2. Discharging: Close the fifth control valve 7 and the fourth control valve 4, and open the first control valve 9, the second control valve 17 and the third control valve 19. Start the vacuum pump 8 again to form a vacuum in the storage box 20, and the dehydrated material enters the storage box 20 through the discharge pipeline of the vacuum tank 3. When the pressure signals of the third pressure gauge 10 and the second pressure gauge 22 are different, start the gas generator 18 to purge the filter 21, and then continue the above-mentioned discharging operation.

[0025] The above embodiments of the present invention are described in detail, but the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A high vacuum control system suitable for the production of phenyl silicone rubber, comprising a vacuum pump, the vacuum pump is connected to a cooler by an inlet pipeline, and the cooler is connected to an air outlet at the top of a vacuum tank by a pipeline, characterized in that: The inlet of the vacuum pump is also connected to a first longitudinal pipeline, the lower end of the first longitudinal pipeline is connected to a zigzag pipeline, the lower end of the zigzag pipeline is connected to a second longitudinal pipeline, the lower end of the second longitudinal pipeline is connected to a steam trap, the middle of the second longitudinal pipeline is connected to a horizontal branch, the other end of the horizontal branch is connected to a third longitudinal pipeline, the lower end of the third longitudinal pipeline is connected to the top of a storage box, the top of the storage box is connected to a discharge pipeline of a vacuum tank, a first pressure gauge is provided on the top of the vacuum tank, a second pressure gauge is provided on the top of the storage box, and a third pressure gauge is provided on the first longitudinal pipeline.

2. The high vacuum control system suitable for the production of phenyl silicone rubber according to claim 1, characterized in that: A filter screen surrounding the lower end of the third longitudinal pipeline is arranged in the storage box, a fourth longitudinal pipeline inserted therein is arranged on the top of the storage box, and the upper end of the fourth longitudinal pipeline is connected to the gas generator.

3. The high vacuum control system suitable for the production of phenyl silicone rubber according to claim 1, characterized in that: A first control valve is provided at the upper end of the first longitudinal pipeline, a second control valve is provided at the lower end of the third longitudinal pipeline, a third control valve is provided on the discharge pipeline, a fourth control valve is provided at the air outlet on the top of the vacuum tank, and a fifth control valve is provided at the inlet pipeline of the vacuum pump near the cooler.

4. The high vacuum control system suitable for the production of phenyl silicone rubber according to claim 1, characterized in that: The zigzag pipeline includes multiple first inclined downward pipelines and second inclined downward pipelines connected between two adjacent first inclined downward pipelines. The first inclined downward pipeline and the second inclined downward pipeline form an acute angle. The upper end of the topmost first inclined downward pipeline is connected to the lower end of the first longitudinal pipeline, and the lower end of the bottommost first inclined downward pipeline is connected to the upper end of the second longitudinal pipeline.

5. The high vacuum control system suitable for the production of phenyl silicone rubber according to claim 1, characterized in that: A heater is arranged outside the feeding pipeline of the vacuum tank, and the vacuum tank is further provided with a heating interlayer.

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