A device for distillative impurity removal of silicone oils

Abstract

The utility model discloses a kind of organic silicone oil distillation impurity removal devices, it includes: distillation tank, cooling tank, heater, heat conducting oil tank, liquid inlet valve and exhaust valve, the top of the distillation tank is provided with cover plate, the liquid inlet valve and exhaust valve are interval arranged on cover plate, the bottom of the cover plate is provided with the undercurrent pipe that is communicated with liquid inlet valve and extends downward, the cooling tank is arranged in distillation tank side, the heat conducting oil tank is suspended on the inner wall of distillation tank, the heater is arranged on the side wall of distillation tank, and extend to heat conducting oil tank inwards horizontally, the exhaust valve is provided with exhaust pipe extending into cooling tank, heating heat conducting oil in heat conducting oil tank is carried out by heater, to realize the heating of heat conducting oil tank, expand the contact area with organic silicone oil in distillation tank, it is favorable to promote heating efficiency, effectively judge the time limit of distillation, avoid the heating work of heater for long time, reduce energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of organosilicon oil production technology, and in particular to an organosilicon oil distillation and impurity removal device. Background Technology

[0002] During the production of silicone oil, some particulate matter and low-boiling-point impurities are inevitably mixed in. In order to improve the quality, in addition to filtering particulate matter, distillation is also required to remove low-boiling-point impurities.

[0003] The boiling point of silicone oil is usually greater than 100 degrees Celsius. For example, the boiling point of high molecular weight silicone oil is 150 to 350 degrees Celsius. Low-boiling-point impurities, such as water, have a boiling point of 100 degrees Celsius under standard atmospheric pressure. Therefore, impurities can be removed by distillation.

[0004] In existing technologies, to achieve distillation and impurity removal of silicone oil, it is usually heated directly by contacting the silicone oil with a heater. However, the complex surface structure of the heater, such as the use of bent tubes, increases the difficulty of cleaning after contact with the silicone oil. Moreover, in order to improve heating efficiency, the surface temperature of the heater is high, which can cause oxidation and decomposition of the silicone oil due to instantaneous high temperature upon contact.

[0005] In addition, the removal of low-boiling-point impurities is slow and it is difficult to determine the distillation time limit, often requiring a long heating time, resulting in high energy consumption, which needs to be improved. Utility Model Content

[0006] The purpose of this invention is to provide a device for distilling and removing impurities from silicone oil, thereby improving efficiency and reducing energy consumption.

[0007] To achieve this objective, the present invention adopts the following technical solution: An organosilicon oil distillation and impurity removal device includes: a distillation tank, a cooling tank, a heater, a heat transfer oil tank, an inlet valve, and an exhaust valve. The top of the distillation tank is provided with a cover plate, and the inlet valve and the exhaust valve are spaced apart on the cover plate. A submersible pipe connected to the inlet valve and extending downward is provided at the bottom of the cover plate. The cooling tank is located on one side of the distillation tank. The heat transfer oil tank is suspended on the inner wall of the distillation tank. The heater is located on the side wall of the distillation tank and extends horizontally inward into the heat transfer oil tank. An exhaust pipe extending into the cooling tank is provided on the exhaust valve.

[0008] The distillation tank is equipped with a drain valve at the bottom.

[0009] The drain valve is equipped with a drain pipe at its bottom.

[0010] The inlet valve is equipped with an inlet pipe.

[0011] The cover plate is equipped with a downward-pointing temperature sensor.

[0012] The cover plate is equipped with a downward-pointing liquid level gauge.

[0013] The heat transfer oil tank contains heat transfer oil that is used to immerse the heater.

[0014] The cooling tank contains coolant that submerges the end of the exhaust pipe.

[0015] An air pump is connected in series with the exhaust pipe.

[0016] The beneficial effects of this utility model are as follows: An organosilicon oil distillation and impurity removal device heats the heat transfer oil in the heat transfer oil tank through a heater, thereby heating the heat transfer oil tank and expanding the contact area with the organosilicon oil in the distillation tank. This helps to improve heating efficiency and reduce the surface temperature of the heat transfer oil tank, reducing the problem of oxidation and decomposition of organosilicon oil due to high temperature. Moreover, the surface of the heat transfer oil tank is regular and easy to clean. After the low boiling point impurities are vaporized, they are discharged through the exhaust pipe and introduced into the coolant, generating bubbles in the coolant. The distillation time limit is judged by the number of bubbles, avoiding the heater from working for a long time, which helps to reduce energy consumption. Furthermore, an air pump can be used to actively extract air, reducing the air pressure in the distillation tank, thereby further reducing the boiling point of impurities and energy consumption. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0018] The following is combined with Figure 1 The technical solution of this utility model will be further illustrated through specific embodiments.

[0019] like Figure 1 The organosilicon oil distillation and impurity removal device shown includes: a distillation tank 1, a cooling tank 10, a heater 9, a heat transfer oil tank 11, an inlet valve 3, and an exhaust valve 5. The top of the distillation tank 1 is provided with a cover plate 2, which seals the top opening of the distillation tank 1. The cover plate 2 is fixed to the distillation tank 1 with screws, making it easy to install and remove.

[0020] The inlet valve 3 and the exhaust valve 5 are spaced apart on the cover plate 2. The bottom of the cover plate 2 is provided with a submersible pipe 14 that is connected to the inlet valve and extends downward. In this embodiment, the inlet valve 3 is provided with an inlet pipe 4. When the inlet valve 3 is opened, the new silicone oil is introduced into the original silicone oil inside the distillation tank 1 through the submersible pipe 14, thereby reducing the problem of silicone oil splashing.

[0021] A drain valve 13 is installed at the bottom of the distillation tank 1, and a drain pipe 12 is installed at the bottom of the drain valve 13. Opening the drain valve 13 allows a portion of the distilled and purified silicone oil to be discharged through the drain pipe 12. In this embodiment, a downward-pointing temperature sensor 7 is installed on the cover plate 2. The temperature sensor 7 is connected to a PLC controller with a built-in display to monitor the temperature of the silicone oil. A downward-pointing level gauge 6 is installed on the cover plate 2. The level gauge 6 is connected to the PLC controller to display the liquid level, facilitating draining and filling operations.

[0022] The heat transfer oil tank 11 is suspended on the inner wall of the distillation tank 1, and is welded and fixed to the inner wall of the distillation tank 1 to avoid leakage. The heat transfer oil tank 11 can adopt a cylindrical structure, with a large surface area, immersed in silicone oil, resulting in a large contact area, high heating efficiency, and easy cleaning.

[0023] like Figure 1 As shown, the heater 9 is disposed on the side wall of the distillation tank 1 and extends horizontally inward into the heat transfer oil tank 11. In this embodiment, the heat transfer oil tank 11 is provided with heat transfer oil that is immersed in the heater 9. The heat transfer oil in the heat transfer oil tank 11 is heated by the heater 9, thereby achieving the heating of the heat transfer oil tank 11. The heat transfer oil tank 11 expands the contact area with the silicone oil in the distillation tank 1, which is beneficial to improving the heating efficiency and reducing the surface temperature of the heat transfer oil tank 11, thereby reducing the problem of oxidation and decomposition of silicone oil due to high temperature.

[0024] The cooling tank 10 is positioned on one side of the distillation tank 1. An exhaust pipe 8 extending into the cooling tank 10 is provided on the exhaust valve 5. In this embodiment, the cooling tank 10 contains coolant that submerges the end of the exhaust pipe 8. Low-boiling-point impurities vaporize and are discharged through the exhaust pipe 8, then introduced into the coolant, where bubbles are generated and liquefied. In actual operation, the operator judges the distillation time limit by the number of bubbles in the cooling tank 10, avoiding prolonged heating operation of the heater 9 and thus reducing energy consumption. like Figure 1 As shown, in this embodiment, a vacuum pump 15 is connected in series on the exhaust pipe 8. The vacuum pump 15 can actively extract air from the distillation tank 1 to reduce the gas pressure in the distillation tank 1, thereby further reducing the boiling point of impurities and reducing the power and energy consumption of the heater 9.

[0025] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A device for distilling and removing impurities from organosilicon oil, characterized in that, include: The distillation tank includes a distillation chamber, a cooling chamber, a heater, a thermal oil tank, an inlet valve, and an exhaust valve. The top of the distillation tank is equipped with a cover plate. The inlet valve and the exhaust valve are spaced apart on the cover plate. A submersible pipe connected to the inlet valve and extending downwards is provided at the bottom of the cover plate. The cooling chamber is located on one side of the distillation tank. The thermal oil tank is suspended on the inner wall of the distillation tank. The heater is located on the side wall of the distillation tank and extends horizontally inwards into the thermal oil tank. An exhaust pipe extending into the cooling chamber is provided on the exhaust valve.

2. The organosilicon oil distillation and impurity removal device according to claim 1, characterized in that, A drain valve is installed at the bottom of the distillation tank.

3. The organosilicon oil distillation and impurity removal device according to claim 2, characterized in that, A drain pipe is provided at the bottom of the drain valve.

4. The organosilicon oil distillation and impurity removal device according to claim 1, characterized in that, The inlet valve is equipped with an inlet pipe.

5. The organosilicon oil distillation and impurity removal device according to claim 1, characterized in that, A downward-pointing temperature sensor is installed on the cover plate.

6. The organosilicon oil distillation and impurity removal device according to claim 1, characterized in that, The cover plate is equipped with a downward-pointing level gauge.

7. The organosilicon oil distillation and impurity removal apparatus according to claim 1, characterized in that, The heat transfer oil tank is equipped with heat transfer oil that submerges the heater.

8. The organosilicon oil distillation and impurity removal apparatus according to claim 1, characterized in that, The cooling tank is equipped with coolant that submerges the end of the exhaust pipe.

9. The organosilicon oil distillation and impurity removal device according to claim 1, characterized in that, An air pump is connected in series with the exhaust pipe.

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