Titanium tetrachloride inhaler

Abstract

The present invention relates to a titanium tetrachloride inhaler, belonging to the technical field of chemical equipment. The device comprises a cylindrical body (1), wherein the upper end of the body (1) is provided with a feed port (11), and the lower end is provided with a discharge port (12); a plurality of feed pipes (2) are provided at intervals along the circumferential direction on the upper side wall of the body (1), and the feed pipes (2) enter the body (1) tangentially and communicate with the interior of the body (1). In the device, gaseous titanium tetrachloride enters from the top feed port (11), while liquid titanium tetrachloride enters from the feed pipe (2) and rotates and flows downward in the body (11), forming a vortex. At the same time, negative pressure is formed in the body (11), accelerating the entry of gaseous titanium tetrachloride from the feed port (11), and achieving uniform mixing of gaseous and liquid titanium tetrachloride in the condenser at the lower part of the body (1). The device solves the problem of low absorption efficiency caused by the empty tower structure of the existing condensation tower.

Description

Technical Field

[0001] The invention relates to a titanium tetrachloride inhaler, belonging to the technical field of chemical equipment. Background Art

[0002] In the titanium tetrachloride production process, gaseous titanium tetrachloride is collected in a condenser. Traditionally, this condenser is a hollow steel tower. Gaseous titanium tetrachloride is introduced from the side of the tower, and liquid titanium tetrachloride is sprayed onto the top or upper sidewalls of the tower. The gaseous titanium tetrachloride is condensed and absorbed by the liquid titanium tetrachloride, and then collected in the lower condenser. However, existing condensation towers are hollow. When gaseous titanium tetrachloride is directly mixed with liquid titanium tetrachloride, the mixture is heated due to the tower's smaller size relative to the condenser. Some of the gaseous titanium tetrachloride remains in the cooling tower, where it is difficult to liquefy, resulting in low absorption efficiency within the tower. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the empty tower structure of the condensation tower causes direct contact between gaseous titanium tetrachloride and liquid titanium tetrachloride, resulting in low absorption efficiency.

[0004] The technical solution adopted by the present invention to solve the technical problem is as follows: a titanium tetrachloride inhaler includes a cylindrical body, the upper end of the body is provided with a feed port, and the lower end is provided with a discharge port; a plurality of feed pipes are provided at intervals along the circumferential direction on the upper side wall of the body, and the feed pipes enter the body 1 tangentially and communicate with the interior of the body.

[0005] Wherein, the number of the feeding pipes in the above device is 2 to 4.

[0006] Wherein, the angle between the axis of the feed pipe and the horizontal plane of the access point in the above device is 8 to 18 degrees.

[0007] Wherein, a spiral flow channel is provided on the inner wall of the lower part of the main body in the above device, and the number of the spiral flow channels corresponds to the number of the feed pipes, and the spiral flow channels are connected to the corresponding feed pipes.

[0008] Preferably, the spiral flow channel in the above device is formed by welding two spiral plates to the inner wall of the body.

[0009] Preferably, a wear-resistant part is provided on the inner wall of the spiral flow channel in the above device.

[0010] Preferably, the wear-resistant parts in the above device are made of silicon carbide.

[0011] Wherein, a hollow frustum-shaped connecting section A is provided at the discharge port of the above-mentioned device, and the angle between the outer wall of the connecting section A and the outer wall of the main body is 8 to 25 degrees.

[0012] Wherein, a hollow inverted truncated cone-shaped connecting section B is provided at the discharge port of the above device, and the angle between the outer wall of the connecting section B and the outer wall of the main body is 10 to 20 degrees.

[0013] The beneficial effects of the present invention are: the device has a simple structure and low cost. In actual use, gaseous titanium tetrachloride enters from the top feed port of the main body, while liquid titanium tetrachloride enters from the feed pipe and swirls and flows downward within the main body, forming a vortex, which creates a negative pressure inside the main body. Due to the large pressure difference, the gaseous titanium tetrachloride at the top is accelerated to enter from the feed port, while the pressure inside the main body is reduced, ensuring uniform mixing and absorption of the liquid titanium tetrachloride and gaseous titanium tetrachloride at the lower end discharge port, thereby greatly improving the absorption rate of the gaseous titanium tetrachloride. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention;

[0015] Figure 2 Schematic diagram of the cross-sectional structure of the spiral flow channel of the present invention;

[0016] Figure 3 It is a schematic diagram of the top view of the structure of the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the present invention and the condenser after installation;

[0018] Figure 5 This is another structural schematic diagram of the present invention;

[0019] Figure 6 This is a schematic diagram of the third structure of the present invention.

[0020] Figure numerals: 1 is the main body, 11 is the feed port, 12 is the discharge port, 2 is the feed pipe, 3 is the spiral plate, 4 is the wear-resistant part, 5 is the spiral flow channel, 6 is the connecting section A, 7 is the connecting section B, and 8 is the condenser. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figures 1 to 6As shown, the titanium tetrachloride inhaler of the present invention comprises a cylindrical body 1, the upper end of which is provided with a feed port 11 and the lower end thereof is provided with a discharge port 12. A plurality of feed pipes 2 are circumferentially spaced apart on the upper sidewall of the body 1, and the feed pipes 2 enter tangentially along the body 1 and communicate with the interior of the body 1. It will be appreciated by those skilled in the art that the device is mounted at the upper end of a condensation tower and is primarily used for introducing gaseous titanium tetrachloride. The device introduces the feed pipes 2 tangentially into the upper sidewall of the body 1. The body 1 is a cylindrical structure, and the feed pipes 2 communicate with the interior of the body 1. This ensures that the liquid titanium tetrachloride entering from the feed pipes 2 moves helically along the inner wall of the body 1, forming a negative pressure structure in the internal cavity of the body 1. Simultaneously, because the feed port 11 at the top of the body 1 is connected to the gaseous titanium tetrachloride pipe, the gaseous titanium tetrachloride continuously enters the body 1 under the action of a pressure differential. After mixing with the liquid titanium tetrachloride at the discharge port 12 at the lower end of the body 1, it enters the condenser 8 at the lower end, thereby achieving absorption of the gaseous titanium tetrachloride. In order to increase the absorption efficiency, the device preferably has multiple feed pipes 2, so that the negative pressure in the body 1 is large and the pressure difference between the two is large, which facilitates the influx of gaseous titanium tetrachloride.

[0023] Preferably, the number of feed pipes 2 in the above device is 2 to 4. Those skilled in the art will appreciate that the preferred number of feed pipes 2 for this device is determined based on the diameter of the body 1. The preferred number of feed pipes 2 for this device is 2 to 4 based on actual on-site needs. A further preferred number of feed pipes 2 is 3.

[0024] Preferably, the angle between the axis of the feed pipe 2 and the horizontal plane of the access point in the above device is 8 to 18 degrees. Those skilled in the art will appreciate that, in order to further enhance the spiral motion of the liquid titanium tetrachloride, the angle between the axis of the feed pipe 2 and the horizontal plane of the access point is preferably 8 to 18 degrees. That is, the feed pipe 2 is tilted downward, allowing the liquid titanium tetrachloride to maintain high-speed spiral motion under the combined effects of gravity and pressure, thereby increasing the negative pressure inside the body 1 and facilitating the influx of gaseous titanium tetrachloride.

[0025] Preferably, a spiral flow channel 5 is provided on the inner wall of the lower portion of the body 1 in the above-mentioned device, and the number of the spiral flow channels 5 corresponds to the number of the feed pipes 2, and the spiral flow channels 5 are connected to the corresponding feed pipes 2. It will be understood by those skilled in the art that in order to further control the movement of the liquid titanium tetrachloride on the inner wall of the body 1, the spiral motion trajectory thereof is offset against each other. The present device is preferably provided with a spiral flow channel 5 on the inner wall of the body 1. As the name implies, the purpose of the spiral flow channel 5 is to standardize the spiral motion trajectory of the liquid titanium tetrachloride coming out of each feed pipe 2. Therefore, the number of the spiral flow channels 5 is equal to the number of the feed pipes 2, and they correspond one-to-one with the feed pipes 2.

[0026] Preferably, the spiral flow channel 5 in the above device is formed by welding two spiral plates 3 to the inner wall of the body 1. Those skilled in the art will appreciate that the preferred configuration of the spiral flow channel 5 in this device is specifically formed by welding the spiral plates 3 to the body 1. The spiral plates 3 can be welded in a spiral shape along the inner wall of the body 1. Adjacent spiral plates 3 and the inner wall of the body 1 form a groove-shaped spiral flow channel 5, thereby ensuring that liquid titanium tetrachloride entering from different feed pipes 2 does not interfere with each other.

[0027] Preferably, the inner wall of the spiral flow channel 5 in the above-mentioned device is provided with a wear-resistant member 4. Those skilled in the art will appreciate that since the liquid titanium tetrachloride is recycled as crude titanium tetrachloride in the condenser 8, it has a high impurity content. To reduce wear of the spiral flow channel 5, the present device preferably provides the wear-resistant member 4 on the inner wall of the spiral flow channel 5. Specifically, the wear-resistant member 4 is installed on the spiral plate 3 and the inner wall of the body 1.

[0028] Preferably, the material of the wear-resistant part 4 in the above device is silicon carbide. Those skilled in the art will understand that in order to further improve the wear resistance of the spiral flow channel 5, the material of the wear-resistant part 4 is preferably silicon carbide.

[0029] Preferably, a hollow frustum-shaped connecting section A6 is provided at the discharge port 12 in the above-mentioned device, and the angle between the outer wall of the connecting section A6 and the outer wall of the main body 1 is 8 to 25 degrees. It will be understood by those skilled in the art that the gaseous titanium tetrachloride fume passes through the main body 1 and enters the condenser 8 through the discharge port 12. The main body 1 and the condenser 8 are usually made to have the same diameter. If the gas volume does not decrease significantly after passing through the absorber, it is preferred to provide a hollow frustum-shaped connecting section A6 at the lower end of the main body 1, that is, the original discharge port 12. Since the change in diameter will change the flow rate of the mixed gas, that is, the flow rate of the titanium tetrachloride fume after passing through the connecting section A6 is reduced, which is conducive to the collection of gas in the condenser 8. And in combination with the actual production on site, the angle between the outer wall of the connecting section A6 and the outer wall of the main body 1 is preferably 8 to 25 degrees. The spiral flow channel 5 is limited to the inner wall of the main body 1 and is not provided on the connecting section A6.

[0030] Preferably, the discharge port 12 in the above-mentioned device is provided with a hollow inverted truncated cone-shaped connecting section B7, and the angle between the outer wall of the connecting section B7 and the outer wall of the main body 1 is 10 to 20 degrees. It will be understood by those skilled in the art that the gaseous titanium tetrachloride fume passes through the main body 1 and enters the condenser 8 through the discharge port 12. The main body 1 and the condenser 8 are usually made to have the same diameter. If the gas volume does not decrease significantly after passing through the absorber, it is preferred to provide a hollow inverted truncated cone-shaped connecting section B7 at the lower end of the main body 1, that is, the original discharge port 12. Since the change in diameter will change the flow rate of the mixed gas, that is, the amount of titanium tetrachloride gas after passing through the connecting section B7 is sharply reduced, which is conducive to the collection of gas in the condenser 8. In addition, in combination with actual on-site production, the angle between the outer wall of the connecting section B7 and the outer wall of the main body 1 is preferably 10 to 20 degrees. The spiral flow channel 5 is limited to the inner wall of the main body 1 and is not provided on the connecting section B7.

Claims

1. Titanium tetrachloride inhaler, characterized in that: The invention comprises a cylindrical body (1), wherein the upper end of the body (1) is provided with a feed port (11), and the lower end is provided with a discharge port (12); a plurality of feed pipes (2) are provided at intervals along the circumferential direction on the upper side wall of the body (1), and the feed pipes (2) enter the body (1) tangentially and communicate with the interior of the body (1); the number of the feed pipes (2) is 2 to 4; the angle between the axis of the feed pipe (2) and the horizontal plane of the access point is 8 to 18 degrees; a spiral flow channel (5) is provided on the inner wall of the lower part of the body (1), and the number of the spiral flow channels (5) corresponds to the number of the feed pipes (2), and the spiral flow channels (5) are communicated with the corresponding feed pipes (2); the spiral flow channel (5) is formed by welding two spiral plates (3) to the inner wall of the body (1); and a wear-resistant part (4) is provided on the inner wall of the spiral flow channel (5).

2. The titanium tetrachloride inhaler according to claim 1, wherein: The material of the wear-resistant part (4) is silicon carbide.

3. The titanium tetrachloride inhaler according to claim 1, wherein: A hollow truncated cone-shaped connecting section A (6) is provided at the discharge port (12), and the angle between the outer wall of the connecting section A (6) and the outer wall of the main body (1) is 8 to 25 degrees.

4. The titanium tetrachloride inhaler according to claim 1, characterized in that: A hollow inverted truncated cone-shaped connecting section B (7) is provided at the discharge port (12), and the angle between the outer wall of the connecting section B (7) and the outer wall of the main body (1) is 10 to 20 degrees.

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