Hydrogen chloride gas drying device

Abstract

This utility model provides a hydrogen chloride gas drying device, comprising: a tower body, a liquid inlet located on the upper side wall of the tower body, an air inlet pipe located on the lower side wall of the tower body, several trays installed inside the tower body, a waste liquid outlet located at the bottom of the tower body, a circulating liquid inlet connected to the waste liquid outlet via a circulating pipe, a circulating pump and a condenser located between the waste liquid outlet and the circulating liquid inlet, and an air outlet located at the top of the tower body; a vibrating screen located at the bottom of the tower body and above the waste liquid outlet, and a solid waste storage bin located on the bottom side wall of the tower body and connected to the vibrating screen; through the above scheme, the vibrating screen and solid waste storage bin at the bottom of the tower body effectively solve the problem of solids falling to the bottom of the tower during the hydrogen chloride gas drying process and being difficult to clean. This design not only improves the drying efficiency but also reduces the labor intensity of manual cleaning, and has good practicality and environmental protection.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen chloride gas drying technology, specifically to a hydrogen chloride gas drying device. Background Technology

[0002] Hydrogen chloride gas drying technology has important applications in fields such as acid gas treatment and chemical industrial production. Traditional hydrogen chloride gas drying devices mainly adopt the adsorption principle or the liquid tower packing drying principle, which have problems such as low equipment efficiency, complex solid waste treatment, and operational safety.

[0003] Chinese patent CN207608319U, entitled "A Low-Cost, High-Efficiency Hydrogen Chloride Gas Drying Device," utilizes the principle of reacting silicon tetrachloride, a waste product from the trichlorosilane production process, with water to generate hydrogen chloride gas and silicon dioxide solid. The silicon tetrachloride is introduced into a bubble cap tower. As the gas rises from the bottom of the tower, it reacts with the silicon tetrachloride evenly distributed on each tray, thus absorbing moisture from the hydrogen chloride gas. Unreacted liquid and reactant solids fall to the bottom of the tower and are recirculated back into the tower for further reaction. However, the reactant silicon dioxide solids tend to precipitate at the bottom of the tower, making them difficult to clean. Summary of the Invention

[0004] This invention provides a hydrogen chloride gas drying device to solve the problem of solids falling to the bottom of the tower during the hydrogen chloride gas drying process, which are difficult to clean.

[0005] To address the aforementioned problems, this utility model provides a hydrogen chloride gas drying device, comprising: a tower body, a liquid inlet located on the upper side wall of the tower body, an air inlet pipe located on the lower side wall of the tower body, several trays installed within the tower body, a waste liquid outlet located at the bottom of the tower body, a circulating liquid inlet connected to the waste liquid outlet via a circulating pipe, a circulating pump and a condenser located between the waste liquid outlet and the circulating liquid inlet, and an air outlet located at the top of the tower body; further comprising: a vibrating screen located at the bottom of the tower body and above the waste liquid outlet, and a solid waste storage bin located on the bottom side wall of the tower body and connected to the vibrating screen;

[0006] The above solution, which involves installing a vibrating screen and a solid waste storage bin at the bottom of the tower, effectively solves the problem of solids falling to the bottom of the tower during the drying process of hydrogen chloride gas, which are difficult to clean. The vibrating screen can separate solid waste from liquid, preventing solid waste from accumulating at the bottom of the tower and affecting the drying effect. The solid waste storage bin is used to collect the separated solid waste, facilitating subsequent processing and cleaning. This design not only improves drying efficiency but also reduces the labor intensity of manual cleaning, demonstrating good practicality and innovation.

[0007] According to one embodiment of this utility model, the vibrating screen includes: a screen mesh, a baffle plate disposed on the side wall of the screen mesh, a plurality of spring seats disposed at the bottom of the screen mesh, a connecting plate mounted on the spring seats, a plurality of springs mounted on the spring seats, a bracket mounted on the inner wall of the tower body, the other end of the springs being fixed to the bracket, a motor disposed at the bottom of the connecting plate and fixed by fixing bolts, and a solid waste outlet pipe opened on the side wall of the baffle plate and connected to the solid waste storage bin. Through the above scheme, the motor drives the connecting plate to drive the springs to work, and the springs generate appropriate vibration amplitude and frequency, thereby improving the separation capacity of the screen mesh. The separated solid waste falls into the solid waste storage bin through the solid waste outlet pipe under the action of the vibrating screen, which significantly improves the operating efficiency, automation level and environmental performance of the hydrogen chloride gas drying device, while reducing the intensity of manual labor and maintenance costs.

[0008] According to one embodiment of the present invention, there are no fewer than eight spring seats and springs. The arrangement of multiple spring seats can make the springs more evenly distributed when bearing load, thereby improving the stability of the vibrating screen and reducing the overall performance decline caused by the failure of a single spring.

[0009] According to one embodiment of the present invention, the connecting plate is rectangular. Through the above scheme, the connecting plate is used to fix the motor, and the rectangular shape does not affect the flow of liquid after passing through the screen.

[0010] According to one embodiment of the present invention, the bracket is ring-shaped and is used to fix the spring. The ring-shaped bracket enables the spring to be evenly distributed in the circumferential direction, thereby ensuring that the load is evenly transmitted between the springs and reducing local stress concentration caused by uneven load.

[0011] According to one embodiment of the present invention, a filter screen is provided at the bottom right side of the solid waste storage bin and below the vibrating screen. Through the above solution, it is prevented that solid waste will slide into the storage bin after the vibrating screen vibrates and bring in some liquid, which will be discharged out of the tower along with it. The filter screen plays a secondary role in filtering solid particles, allowing unreacted silicon tetrachloride liquid to re-enter the tower for reaction, thereby improving the utilization rate and maximizing waste utilization.

[0012] According to one embodiment of the present invention, the bottom of the above-mentioned solid waste storage bin is equipped with a solid waste outlet cover. When the solid waste storage volume is too large, the solid waste outlet cover is activated to discharge the solid waste out of the tower. By adjusting the discharge volume of solid waste, the solid waste treatment process is optimized, the treatment efficiency is improved, and the screen of the vibrating screen is prevented from being blocked by too much solid waste.

[0013] According to one embodiment of the present invention, two supports are provided in the middle of the tower body, which provide support for the tower body and improve the overall stability and wind resistance of the tower body.

[0014] According to one embodiment of the present invention, the tower body is provided with several manholes, which allow personnel to easily enter the tower body to inspect and maintain the equipment, thereby improving the convenience and efficiency of maintenance. Through the manholes, monitoring equipment can be installed to monitor environmental parameters such as temperature and humidity inside the tower body in real time, and to promptly identify and resolve problems.

[0015] The technical advantages of this application are as follows:

[0016] This application provides a hydrogen chloride gas drying device, which features a vibrating screen and a solid waste storage bin at the bottom of the tower. This effectively solves the problem of solids falling to the bottom of the tower during the hydrogen chloride gas drying process and being difficult to clean. The vibrating screen can separate solid waste from liquid, preventing solid waste from accumulating at the bottom of the tower and affecting the drying effect. The solid waste storage bin is used to collect the separated solid waste, facilitating subsequent processing and cleaning. This design not only improves drying efficiency but also reduces the labor intensity of manual cleaning, demonstrating good practicality and environmental friendliness. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a hydrogen chloride gas drying device provided by this utility model.

[0018] Figure 2 This utility model provides Figure 1 A magnified view of the details at point A in the middle.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Liquid inlet; 2. Tower body; 3. Gas outlet; 4. Tower tray; 5. Circulation pipeline; 6. Condenser; 7. Circulation pump; 8. Waste liquid outlet; 9. Manhole; 10. Support; 11. Gas inlet pipe; 12. Vibrating screen; 1201. Baffle; 1202. Screen; 1203. Connecting plate; 1204. Fixing bolt; 1205. Motor; 1206. Bracket; 1207. Spring; 1208. Spring seat; 1209. Solid waste outlet pipe; 13. Solid waste storage bin; 14. Solid waste outlet cover; 15. Filter screen; 16. Circulation liquid inlet. Detailed Implementation

[0021] The following will be combined with the appendix Figures 1-2 The embodiments of the technical solution of this application are described in detail below. The following embodiments are only used to illustrate the technical solution of this application more clearly, and are therefore only examples and should not be used to limit the scope of protection of this application.

[0022] Example 1

[0023] Reference Figure 1This utility model provides a hydrogen chloride gas drying device, comprising: a tower body 2, a liquid inlet 1 located on the upper side wall of the tower body 2, an air inlet pipe 11 located on the lower side wall of the tower body 2, several layers of trays 4 installed inside the tower body 2, a waste liquid outlet 8 located at the bottom of the tower body 2, a circulating liquid inlet 16 connected to the waste liquid outlet 8 through a circulating pipe 5, a circulating pump 7 and a condenser 6 located between the waste liquid outlet 8 and the circulating liquid inlet 16, an air outlet 3 located at the top of the tower body 2; a vibrating screen 12 located at the bottom of the tower body 2 and above the waste liquid outlet 8, and a solid waste storage bin 13 located on the bottom side wall of the tower body 2 and connected to the vibrating screen 12;

[0024] Liquid silicon tetrachloride enters the tower body 2 from the inlet 1 and falls into the tray 4. It then falls freely into the next tray. The hydrogen chloride gas mixture enters from the inlet pipe 11 and moves upward, passing through the trays 4 one by one and reacting with the silicon tetrachloride on the trays 4. After the reaction is completed, the dried hydrogen chloride gas is discharged from the tower through the outlet 3. The unreacted silicon tetrachloride and reactants fall to the vibrating screen 12 at the bottom of the tower. After passing through the vibrating screen 12, the unreacted silicon tetrachloride is filtered and flows into the bottom of the tower, entering the circulation pipe 5 from the waste liquid outlet 8 and being sent back into the tower for the drying process. The reactant silicon dioxide solid slides into the solid waste storage bin 13 through the vibrating screen 12 and its own gravity before being discharged from the tower.

[0025] By using the above solution, a vibrating screen 12 and a solid waste storage bin 13 are installed at the bottom of the tower body 2, which effectively solves the problem of solids falling to the bottom of the tower during the drying process of hydrogen chloride gas and being difficult to clean. The vibrating screen 12 can separate solid waste from liquid, avoiding the accumulation of solid waste at the bottom of the tower and affecting the drying effect. The solid waste storage bin 13 is used to collect the separated solid waste, which is convenient for subsequent processing and cleaning. This design not only improves the drying efficiency, but also reduces the labor intensity of manual cleaning, and has good practicality and environmental protection.

[0026] See attached document Figure 2The vibrating screen 12 includes: a screen 1202, a baffle 1201 disposed on the side wall of the screen 1202, a plurality of spring seats 1208 disposed at the bottom of the screen 1202, a connecting plate 1203 mounted on the spring seats 1208, a plurality of springs 1207 mounted on the spring seats 1208, a bracket 1206 mounted on the inner wall of the tower body 2, the other end of the springs 1207 being fixed to the bracket 1206, a motor 1205 disposed at the bottom of the connecting plate 1203 and fixed by fixing bolts 1204, and a section opened on the side wall of the baffle 1201. Furthermore, the solid waste outlet pipe 1209 of the solid waste storage bin 13 is connected. Through the above scheme, the motor 1205 drives the connecting plate 1203 to drive the spring 1207 to work. The spring 1207 generates appropriate vibration amplitude and frequency, which improves the separation capacity of the screen 1202. The separated solid waste falls into the solid waste storage bin 13 through the solid waste outlet pipe 1209 under the action of the vibrating screen 12. This significantly improves the operating efficiency, automation level and environmental performance of the hydrogen chloride gas drying device, while reducing the intensity of manual labor and maintenance costs.

[0027] There are no fewer than eight spring seats 1208 and springs 1207. The arrangement of multiple spring seats 1208 can make the springs 1207 more evenly distributed when bearing load, thereby improving the stability of the vibrating screen 12 and reducing the overall performance decline caused by the failure of a single spring 1207.

[0028] The connecting plate 1203 is rectangular. With the above scheme, the connecting plate 1203 is used to fix the motor 1205. At the same time, the rectangular shape does not affect the flow of liquid after passing through the screen 1202.

[0029] The bracket 1206 is ring-shaped and is used to fix the spring 1207. The ring bracket 1206 can make the spring 1207 evenly distributed in the circumferential direction, thereby ensuring that the load is evenly transmitted between each spring 1207 and reducing local stress concentration caused by uneven load.

[0030] A filter screen 15 is installed at the bottom right side of the solid waste storage bin 13 and below the vibrating screen 12. This design prevents solid waste from sliding into the storage bin after the vibrating screen 12 vibrates and bringing in some liquid, which is then discharged out of the tower. The filter screen 15 performs secondary filtration of solid particles, allowing unreacted silicon tetrachloride liquid to re-enter the tower for reaction, thereby improving utilization and maximizing waste utilization.

[0031] The bottom of the solid waste storage bin 13 is equipped with a solid waste outlet cover 14. When there is too much solid waste, the solid waste outlet cover 14 is activated to discharge the solid waste out of the tower. By adjusting the discharge volume of solid waste, the solid waste treatment process is optimized, the treatment efficiency is improved, and the screen 1201 of the vibrating screen 12 is prevented from being blocked by too much solid waste.

[0032] Two supports 10 are provided in the middle of the tower body 2. The middle supports 10 provide support for the tower body 2, which improves the overall stability and wind resistance of the tower body 2.

[0033] The tower body 2 is equipped with several manholes 9, which allow personnel to easily enter the tower body 2 to inspect and maintain the equipment, improving the convenience and efficiency of maintenance. Through the manholes 9, monitoring equipment can be installed to monitor environmental parameters such as temperature and humidity inside the tower body 2 in real time, and to promptly identify and resolve problems.

[0034] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A hydrogen chloride gas drying apparatus, comprising: The tower body (2) includes a liquid inlet (1) on the upper side wall of the tower body (2), an air inlet pipe (11) on the lower side wall of the tower body (2), several trays (4) installed in the tower body (2), a waste liquid outlet (8) at the bottom of the tower body (2), a circulating liquid inlet (16) connected to the waste liquid outlet (8) through a circulating pipe (5), a circulating pump (7) and a condenser (6) located between the waste liquid outlet (8) and the circulating liquid inlet (16), and an air outlet (3) at the top of the tower body (2). The feature is that it further includes: a vibrating screen (12) located at the bottom of the tower body (2) and above the waste liquid outlet (8), and a solid waste storage bin (13) located on the bottom side wall of the tower body (2) and connected to the vibrating screen (12).

2. The hydrogen chloride gas drying apparatus according to claim 1, characterized in that, The vibrating screen (12) includes: a screen (1202), a baffle (1201) on the side wall of the screen (1202), a plurality of spring seats (1208) at the bottom of the screen (1202), a connecting plate (1203) installed on the spring seats (1208), a plurality of springs (1207) installed on the spring seats (1208), a bracket (1206) installed on the inner wall of the tower body (2), the other end of the spring (1207) being fixed to the bracket (1206), a motor (1205) fixed at the bottom of the connecting plate (1203) by fixing bolts (1204), and a solid waste outlet pipe (1209) opened on the side wall of the baffle (1201) and connected to the solid waste storage bin (13).

3. The hydrogen chloride gas drying apparatus according to claim 2, characterized in that, The spring seat (1208) and the spring (1207) shall be provided in no fewer than 8 units.

4. The hydrogen chloride gas drying apparatus according to claim 2, characterized in that, The connecting plate (1203) is rectangular.

5. The hydrogen chloride gas drying apparatus according to claim 2, characterized in that, The support (1206) is ring-shaped.

6. The hydrogen chloride gas drying apparatus according to claim 2, characterized in that, A filter screen (15) is provided at the bottom right side of the solid waste storage bin (13) and below the vibrating screen (12).

7. The hydrogen chloride gas drying apparatus according to claim 5, characterized in that, The bottom of the solid waste storage bin (13) is equipped with a solid waste outlet cover (14).

8. The hydrogen chloride gas drying apparatus according to claim 1, characterized in that, The tower body (2) is provided with two supports (10) in the middle.

9. The hydrogen chloride gas drying apparatus according to claim 1, characterized in that, The tower body (2) is provided with several personal openings (9).

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