A tail gas removal system for boron trichloride gas production

Abstract

The utility model discloses a tail gas removal system for boron trichloride gas production, including a reaction box, a buffer tube, a suction fan, an air supply pipe, a cooling box, a cooling device, a cooling fin, an air outlet pipe and a safety valve, wherein a buffer tube is provided on one side of the reaction box, a suction pipe is provided on the side of the buffer tube away from the reaction box, the size of the suction pipe is matched with the size of the buffer tube, a suction fan is provided on the suction pipe, an air supply pipe is provided on the side of the suction fan away from the suction pipe, a cooling box is provided on the side of the air supply pipe away from the suction fan, a sealing port is provided at a position corresponding to the cooling box and the air supply pipe, the size of the sealing port is matched with the size of the air supply pipe, a cooling device is provided on the cooling box, and a plurality of cooling fins are provided on the lower side of the cooling device. The utility model has a simple structure, and will not leak when cooling and collecting boron trichloride gas.

Description

Technical Field

[0001] The utility model relates to the technical field of boron trichloride production equipment, in particular to a tail gas removal system for boron trichloride gas production. Background Art

[0002] Boron trichloride is an inorganic compound with the chemical formula BCl3. It is mainly used as a catalyst for organic reactions, such as esterification, alkylation, polymerization, isomerization, sulfonation, nitration, etc. It can also be used as an antioxidant when casting magnesium and alloys. It can also be used as the main raw material for the preparation of boron halides, elemental boron, borane, sodium borohydride, etc. It is also used in the electronics industry, etc.

[0003] During the production process of boron trichloride, a large amount of heat and boron trichloride gas will be generated. If the temperature is not cooled in time, the internal pressure of the boron trichloride gas collection device will increase, which may lead to safety accidents. In addition, the boron trichloride gas may be discharged during the cooling and exhaust process, causing harm. Therefore, the utility model proposes a tail gas removal system for boron trichloride gas production to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a tail gas removal system for boron trichloride gas production to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tail gas removal system for boron trichloride gas production, comprising a reaction box, a buffer tube, a suction fan, an air supply pipe, a cooling box, a cooling device, a cooling fin, an air outlet pipe and a safety valve, a buffer tube is provided on one side of the reaction box, an air suction pipe is provided on the side of the buffer tube away from the reaction box, the size of the air suction pipe is matched with the size of the buffer tube, a suction fan is provided on the air suction pipe, an air supply pipe is provided on the side of the suction fan away from the air suction pipe, a cooling box is provided on the side of the air supply pipe away from the suction fan, a sealing port is provided at a position of the cooling box corresponding to the air supply pipe, and the size of the sealing port is matched with the size of the air supply pipe.

[0006] Preferably, a cooling device is provided on the cooling box, and a plurality of cooling fins are provided on the lower side of the cooling device. The plurality of cooling fins extend into the cooling box, and the sizes of the plurality of cooling fins are adapted to the size of the cooling box.

[0007] Preferably, an air outlet pipe is provided on a side of the cooling box adjacent to the cooling device, an adsorption box is provided on the air outlet pipe, and an adsorption plate is provided inside the adsorption box.

[0008] Preferably, the size of the adsorption plate is matched with the size of the adsorption box, and a safety valve is provided on the side of the adsorption box away from the air outlet pipe.

[0009] Preferably, a collecting pipe is provided on the cooling box near the air outlet pipe, a hydraulic valve is provided on the collecting pipe, and a collecting box is provided on a side of the collecting pipe away from the cooling box.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a simple structure, and no leakage occurs when cooling and collecting boron trichloride gas; the boron trichloride gas obtained by the reaction can enter the cooling box through the suction fan and the suction pipe; the boron trichloride gas can be cooled and liquefied through the cooling device and the cooling plate, which is convenient for subsequent collection and preparation of boron trichloride solid. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0013] In the figure: 1. reaction box; 2. buffer tube; 3. suction fan; 4. air supply pipe; 5. cooling box; 6. cooling device; 7. cooling plate; 8. air outlet pipe; 9. safety valve; 10. adsorption box; 11. adsorption plate; 12. collection pipe; 13. hydraulic valve; 14. collection box. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0016] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] See also Figure 1-2 The utility model provides a technical solution: a tail gas removal system for boron trichloride gas production, comprising a reaction box 1, a buffer tube 2, a suction fan 3, an air supply pipe 4, a cooling box 5, a cooling device 6, a cooling fin 7, an air outlet pipe 8 and a safety valve 9, wherein the buffer tube 2 is provided on one side of the reaction box 1, an air suction pipe is provided on the side of the buffer tube 2 away from the reaction box 1, the size of the air suction pipe is matched with the size of the buffer tube 2, a suction fan 3 is provided on the air suction pipe, an air supply pipe 4 is provided on the side of the suction fan 3 away from the air suction pipe, a cooling box 5 is provided on the side of the air supply pipe 4 away from the suction fan 3, a sealing port is provided at a position of the cooling box 5 corresponding to the air supply pipe 4, and the size of the sealing port is matched with the size of the air supply pipe 4.

[0018] In this embodiment, a cooling device 6 is provided on the cooling box 5 , and a plurality of cooling fins 7 are provided on the lower side of the cooling device 6 . The plurality of cooling fins 7 extend into the cooling box 5 , and the sizes of the plurality of cooling fins 7 are adapted to the size of the cooling box 5 .

[0019] In this embodiment, an air outlet pipe 8 is provided on one side of the cooling box 5 adjacent to the cooling device 6 , an adsorption box 10 is provided on the air outlet pipe 8 , and an adsorption plate 11 is provided inside the adsorption box 10 .

[0020] In this embodiment, the size of the adsorption plate 11 is matched with the size of the adsorption box 10 , and a safety valve 9 is provided on the side of the adsorption box 10 away from the air outlet pipe 8 .

[0021] In this embodiment, a collecting pipe 12 is provided on the cooling box 5 near the air outlet pipe 8 , a hydraulic valve 13 is provided on the collecting pipe 12 , and a collecting box 14 is provided on a side of the collecting pipe 12 away from the cooling box 5 .

[0022] Working principle: The staff uses the suction fan 3 to suck the boron trichloride gas produced in the reaction box 1 into the cooling box 5, and then uses the cooling device 6 to reduce the temperature of the cooling plate 7, and then liquefies the boron trichloride gas, and discharges the remaining gas through the outlet pipe 8. If there is a small amount of boron trichloride gas mixed in it, it will be adsorbed by the adsorption plate 11, and then the liquefied boron trichloride in the cooling box 5 will flow into the collection box 14 through the collection pipe 12 for subsequent production operations.

[0023] It is worth noting that the entire device is controlled by a main control button. Since the device matched with the control button is a common device and belongs to the existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tail gas removal system for boron trichloride gas production, characterized in that: The invention comprises a reaction box (1), a buffer tube (2), a suction fan (3), an air supply pipe (4), a cooling box (5), a cooling device (6), a cooling fin (7), an air outlet pipe (8) and a safety valve (9), wherein the buffer tube (2) is provided on one side of the reaction box (1), an air suction pipe is provided on the side of the buffer tube (2) away from the reaction box (1), the size of the air suction pipe is matched with the size of the buffer tube (2), the suction fan (3) is provided on the air suction pipe, the air supply pipe (4) is provided on the side of the suction fan (3) away from the air suction pipe, the cooling box (5) is provided on the side of the air supply pipe (4) away from the suction fan (3), and a sealing port is provided at a position corresponding to the air supply pipe (4), the size of the sealing port is matched with the size of the air supply pipe (4).

2. A tail gas removal system for boron trichloride gas production according to claim 1, characterized in that: A cooling device (6) is provided on the cooling box (5), and a plurality of cooling fins (7) are provided on the lower side of the cooling device (6). The plurality of cooling fins (7) extend into the cooling box (5), and the sizes of the plurality of cooling fins (7) are adapted to the sizes of the cooling box (5).

3. A tail gas removal system for boron trichloride gas production according to claim 2, characterized in that: An air outlet pipe (8) is provided on a side of the cooling box (5) adjacent to the cooling device (6), an adsorption box (10) is provided on the air outlet pipe (8), and an adsorption plate (11) is provided inside the adsorption box (10).

4. A tail gas removal system for boron trichloride gas production according to claim 3, characterized in that: The size of the adsorption plate (11) is matched to the size of the adsorption box (10), and a safety valve (9) is provided on the side of the adsorption box (10) away from the air outlet pipe (8).

5. A tail gas removal system for boron trichloride gas production according to claim 3, characterized in that: A collecting pipe (12) is provided on the cooling box (5) near the air outlet pipe (8), a hydraulic valve (13) is provided on the collecting pipe (12), and a collecting box (14) is provided on a side of the collecting pipe (12) away from the cooling box (5).

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