A desorption tower in a sulfuric acid preparation process

Abstract

The utility model discloses a stripping tower in a sulfuric acid preparation process, including a base, a support frame is provided at the center position of the top of the base, a top seat is provided at the top of the support frame, a lower tower body is provided at the center position of the top of the top seat, a stripping tower body is fixed at the top of the lower tower body, an upper tower body is provided at one end of the stripping tower body away from the lower tower body, a filler is provided at the upper end inside the stripping tower body, a liquid through pipe is provided on the inner wall of the stripping tower body above the filler, an atomizing nozzle is installed at the bottom end of the liquid through pipe, an air inlet is provided on the outer wall of one side of the stripping tower body, an L-shaped seat is provided on the outer wall of one side of the air inlet, and an axle seat is provided on the outer wall of the air inlet on one side of the L-shaped seat. The utility model can not only adjust the intake rate of sulfur dioxide gas as needed to improve the convenience of the stripping tower when in use, but also reduce the phenomenon of the stripping tower stopping due to the exhaustion of liquid in the liquid storage tank, and achieve the purpose of automatically stripping sulfur dioxide gas.

Description

Technical Field

[0001] The utility model relates to the technical field of desorption towers, in particular to a desorption tower in a sulfuric acid preparation process. Background Art

[0002] Sulfuric acid is an important inorganic compound, which is widely used in chemical industry, metallurgy, petroleum, textile and other fields. In the process of preparing sulfuric acid, it is often necessary to burn and oxidize sulfur-containing compounds to generate sulfur dioxide, which is then converted into sulfuric acid through catalytic oxidation and other steps. However, in the process of preparing sulfuric acid, the removal and recovery of sulfur dioxide is an important link, which is directly related to the purity and output of sulfuric acid, so the corresponding desorption tower needs to be used.

[0003] The stripping tower in the sulfuric acid preparation process with reference announcement number CN203724952U includes a cylindrical tower body, an air inlet pipe is provided at the lower part of the tower body, a liquid outlet is provided on the tower body below the air inlet pipe, a filler is laid on the tower body above the air inlet pipe, a water separation tray is provided on the tower body above the filler, the water separation tray is connected with a water inlet pipe, and an exhaust pipe is provided at the upper end of the tower body; the water separation tray is connected with a spiral nozzle and a rotating nozzle, a polytetrafluoroethylene layer is adhered to the outer surface of the spiral nozzle and the rotating nozzle, and the spiral nozzle and the rotating nozzle are evenly distributed below the water separation tray; the rotating nozzle is located above the spiral nozzle, and the rotating nozzle and the spiral nozzle are distributed below the water separation tray at intervals. The stripping tower can eliminate the water separation blind spot, improve the degassing rate, purification yield and dust removal effect. According to the above, although the stripping tower can be well applied, it is usually not convenient to adjust the opening and closing size of the air inlet, and it is difficult to adjust the intake rate of sulfur dioxide gas as needed, and it needs to be improved. Utility Model Content

[0004] The utility model aims to provide a stripping tower in a sulfuric acid preparation process to solve the problem in the above background technology that although the stripping tower can be well applied, it is usually not convenient to adjust the opening and closing size of the air inlet, and it is difficult to adjust the sulfur dioxide gas intake rate as needed.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a stripping tower in a sulfuric acid preparation process, comprising a base, a support frame is provided at the center position of the top of the base, a top seat is provided at the top of the support frame, a lower tower body is provided at the center position of the top of the top seat, a stripping tower body is fixed to the top of the lower tower body, an upper tower body is provided at one end of the stripping tower body away from the lower tower body, a filler is provided at the upper end of the interior of the stripping tower body, a liquid through pipe is provided on the inner wall of the stripping tower body above the filler, an atomizing nozzle is installed at the bottom end of the liquid through pipe, an air inlet is provided on the outer wall of one side of the stripping tower body, and the outer wall on one side of the air inlet is provided. An L-shaped seat body is provided on the wall, an axle seat is provided on the outer wall of the air inlet pipe opening on one side of the L-shaped seat body, a rotating shaft is rotatably installed inside the air inlet pipe opening, a circular baffle is provided on the outer wall of the rotating shaft, the outer wall of the circular baffle touches the inner wall of the air inlet pipe opening, one end of the rotating shaft passes through the axle seat and is provided with a linkage arm, a telescopic driving member is provided at the end of the linkage arm away from the rotating shaft, and the end of the telescopic driving member away from the linkage arm is rotatably connected to the inner wall of the L-shaped seat body, a support rod is provided at the top of the base on one side of the lower tower body, a control panel is installed at the top of the support rod, and the output end of the single-chip microcomputer inside the control panel is electrically connected to the input end of the telescopic driving member.

[0006] Preferably, a liquid storage tank is provided at the top of the base of the lower tower body away from the support rod, and a liquid discharge port is provided on the outer wall of the lower tower body away from the liquid storage tank. The liquid storage tank is provided to store and process the liquid used for desorption.

[0007] Preferably, an exhaust port is provided at the center of the top of the upper tower body, and the bottom end of the exhaust port extends to the interior of the upper tower body. The exhaust port is provided so that the desorbed gas can be discharged through the exhaust port.

[0008] Preferably, a mounting seat is installed on the inner wall of one side of the liquid storage tank, and a liquid level gauge is provided on the outer wall of the mounting seat. The output end of the liquid level gauge is electrically connected to the input end of the single chip microcomputer inside the control panel. The liquid level gauge is provided to monitor and process the liquid level inside the liquid storage tank.

[0009] Preferably, a water pump is installed on one side of the top of the liquid storage tank, the input end of the water pump is electrically connected to the output end of the single-chip microcomputer inside the control panel, one end of the water pump extends to the bottom of the liquid storage tank through a conduit, and the other end of the liquid storage tank is connected to the top of the liquid passing pipe through the conduit. The water pump is provided to transport the liquid inside the liquid storage tank to the liquid passing pipe.

[0010] Preferably, positioning pins are installed on the outer walls of the mounting seats on both sides of the liquid level gauge, one end of the positioning pins passes through the mounting seat and is connected to the inner wall of the liquid storage tank. The positioning pins are provided to install the mounting seat on the inner wall of the liquid storage tank.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the desorption tower in the sulfuric acid preparation process can not only adjust the intake rate of sulfur dioxide gas as needed to improve the convenience of using the desorption tower, but also reduce the phenomenon of the desorption tower stopping operation due to the exhaustion of liquid in the liquid storage tank, and achieve the purpose of automatically desorbing sulfur dioxide gas;

[0012] (1) The rotating shaft is driven to rotate by the telescopic driving member through the linkage arm, so that the rotating shaft drives the circular baffle located inside the air inlet to rotate, so that the opening and closing size of the air inlet can be adjusted to adjust the intake rate of sulfur dioxide gas as needed, thereby improving the convenience of using the stripping tower;

[0013] (2) The mounting base is mounted on the inner wall of the liquid storage tank by means of positioning pins. Due to the setting of the liquid level meter, the liquid level of the remaining liquid in the liquid storage tank is monitored, and the relevant data is fed back to the control panel and displayed for personnel to view, so as to facilitate personnel to replenish the liquid in the liquid storage tank, thereby reducing the phenomenon of the desorption tower stopping operation due to the depletion of liquid in the liquid storage tank;

[0014] (3) Sulfur dioxide gas is injected into the interior of the stripping tower body through the air inlet, and the liquid in the liquid storage tank is transported to the interior of the liquid pipe by a water pump and sprayed into the stripping tower body by an atomizing nozzle. At this time, the sulfur dioxide gas flows upward, and the liquid and filler are used to strip the sulfur dioxide gas. The desorbed gas is discharged through the exhaust port, thereby achieving the purpose of automatically stripping the sulfur dioxide gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 3 This is a schematic diagram of the air inlet port structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the enlarged structure of the side view of the component placement seat of the utility model.

[0019] In the figure: 1. base; 2. support frame; 3. top seat; 4. support rod; 5. control panel; 6. desorption tower body; 7. lower tower body; 8. upper tower body; 9. air inlet; 10. exhaust port; 11. liquid discharge port; 12. filler; 13. liquid pipe; 14. atomizing nozzle; 15. liquid storage tank; 16. water pump; 17. mounting seat; 18. L-shaped seat; 19. telescopic drive member; 20. linkage arm; 21. shaft seat; 22. rotating shaft; 23. circular baffle; 24. liquid level gauge; 25. positioning pin. DETAILED DESCRIPTION

[0020] 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. 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.

[0021] See also Figure 1-4 The utility model provides an embodiment: a desorption tower in a sulfuric acid preparation process, comprising a base 1, a support frame 2 is provided at the center position of the top of the base 1, a top seat 3 is provided at the top of the support frame 2, a lower tower body 7 is provided at the center position of the top of the top seat 3, a liquid storage tank 15 is provided at the top of the base 1 on the side of the lower tower body 7 away from the support rod 4, and a liquid discharge port 11 is provided on the outer wall of the lower tower body 7 on the side away from the liquid storage tank 15;

[0022] When in use, the liquid storage tank 15 is provided to store and process the liquid used for desorption;

[0023] A mounting seat 17 is installed on the inner wall of one side of the liquid storage tank 15, and a liquid level meter 24 is provided on the outer wall of the mounting seat 17. The output end of the liquid level meter 24 is electrically connected to the input end of the single chip microcomputer inside the control panel 5;

[0024] When in use, the level meter 24 is provided to monitor the level of the liquid inside the liquid storage tank 15;

[0025] A water pump 16 is installed on one side of the top of the liquid storage tank 15. The input end of the water pump 16 is electrically connected to the output end of the single chip microcomputer inside the control panel 5. One end of the water pump 16 extends to the bottom of the liquid storage tank 15 through a conduit, and the other end of the liquid storage tank 15 is connected to the top of the liquid passage pipe 13 through a conduit.

[0026] When in use, the water pump 16 is provided to transport the liquid in the liquid storage tank 15 to the liquid passage pipe 13;

[0027] Positioning pins 25 are installed on the outer walls of the mounting base 17 on both sides of the liquid level gauge 24. One end of the positioning pin 25 passes through the mounting base 17 and is connected to the inner wall of the liquid storage tank 15.

[0028] When in use, the positioning pin 25 is provided so as to install the mounting seat 17 on the inner wall of the liquid storage tank 15;

[0029] A stripping tower body 6 is fixed to the top of the lower tower body 7, and an upper tower body 8 is provided at one end of the stripping tower body 6 away from the lower tower body 7. An exhaust port 10 is provided at the center of the top of the upper tower body 8, and the bottom end of the exhaust port 10 extends to the interior of the upper tower body 8;

[0030] When in use, the exhaust port 10 is provided so that the desorbed gas can be discharged through the exhaust port 10;

[0031] A filler 12 is provided at the upper end of the stripping tower body 6, a liquid passage 13 is provided on the inner wall of the stripping tower body 6 above the filler 12, an atomizing nozzle 14 is installed at the bottom end of the liquid passage 13, an air inlet port 9 is provided on the outer wall on one side of the stripping tower body 6, an L-shaped seat body 18 is provided on the outer wall on one side of the air inlet port 9, an axle seat 21 is provided on the outer wall of the air inlet port 9 on one side of the L-shaped seat body 18, a rotating shaft 22 is rotatably installed inside the air inlet port 9, a circular baffle 23 is provided on the outer wall of the rotating shaft 22, and the outer wall of the circular baffle 23 touches the inner wall of the air inlet port 9;

[0032] One end of the rotating shaft 22 passes through the shaft seat 21 and is provided with a linkage arm 20. The end of the linkage arm 20 away from the rotating shaft 22 is provided with a telescopic driving member 19. The end of the telescopic driving member 19 away from the linkage arm 20 is rotatably connected to the inner wall of the L-shaped seat body 18. A support rod 4 is provided at the top of the base 1 on one side of the lower tower body 7. A control panel 5 is installed at the top of the support rod 4. The output end of the single-chip microcomputer inside the control panel 5 is electrically connected to the input end of the telescopic driving member 19.

[0033] When the embodiment of the present application is used, first, in the sulfuric acid preparation process, the gas containing sulfur dioxide is introduced into the stripping tower body 6 through the air inlet pipe port 9, and the liquid sprayed by the atomizing nozzle 14 is fully contacted and reacted with the filler 12 to achieve the removal of sulfur dioxide in the gas. The gas after the desorption treatment is discharged from the exhaust port 10, and the liquid falls to the bottom of the lower tower body 7 and can be discharged from the liquid discharge port 11, so as to achieve the purpose of stripping the sulfur dioxide gas. After that, the liquid level of the remaining liquid in the liquid storage tank 15 is monitored by the liquid level meter 24, and the relevant data is fed back to the control panel 5 and displayed for personnel to watch, so as to facilitate the personnel to replenish the liquid in the liquid storage tank 15. Finally, the rotating shaft 22 is driven to rotate through the linkage arm 20 by the telescopic driving member 19, so that the rotating shaft 22 drives the circular baffle 23 located inside the air inlet pipe port 9 to rotate, so that the opening and closing size of the air inlet pipe port 9 can be adjusted to adjust the intake rate of the sulfur dioxide gas as needed, thereby completing the use of the stripping tower.

Claims

1. A stripping tower in a sulfuric acid preparation process, characterized in that: The invention comprises a base (1), a support frame (2) is provided at the center position of the top of the base (1), a top seat (3) is provided at the top of the support frame (2), a lower tower body (7) is provided at the center position of the top of the top seat (3), a stripping tower body (6) is fixed at the top of the lower tower body (7), an upper tower body (8) is provided at the end of the stripping tower body (6) away from the lower tower body (7), a filler (12) is provided at the upper end of the stripping tower body (6), a liquid passage (13) is provided on the inner wall of the stripping tower body (6) above the filler (12), an atomizing nozzle (14) is installed at the bottom end of the liquid passage (13), an air inlet (9) is provided on the outer wall of one side of the stripping tower body (6), an L-shaped seat body (18) is provided on the outer wall of one side of the air inlet (9), and the air inlet on one side of the L-shaped seat body (18) is provided. (9) An axle seat (21) is provided on the outer wall, a rotating shaft (22) is rotatably installed inside the air inlet pipe opening (9), a circular baffle (23) is provided on the outer wall of the rotating shaft (22), the outer wall of the circular baffle (23) touches the inner wall of the air inlet pipe opening (9), one end of the rotating shaft (22) passes through the axle seat (21) and is provided with a linkage arm (20), the end of the linkage arm (20) away from the rotating shaft (22) is provided with a telescopic driving member (19), the end of the telescopic driving member (19) away from the linkage arm (20) is rotatably connected to the inner wall of the L-shaped seat body (18), a support rod (4) is provided at the top of the base (1) on one side of the lower tower body (7), a control panel (5) is installed at the top of the support rod (4), and the output end of the single chip microcomputer inside the control panel (5) is electrically connected to the input end of the telescopic driving member (19).

2. The stripping tower in a sulfuric acid preparation process according to claim 1, characterized in that: A liquid storage tank (15) is provided at the top of the base (1) on the side of the lower tower body (7) away from the support rod (4), and a liquid discharge port (11) is provided on the outer wall of the side of the lower tower body (7) away from the liquid storage tank (15).

3. The stripping tower in a sulfuric acid preparation process according to claim 1, characterized in that: An exhaust port (10) is provided at the center of the top of the upper tower body (8), and the bottom end of the exhaust port (10) extends to the interior of the upper tower body (8).

4. The stripping tower in a sulfuric acid preparation process according to claim 2, characterized in that: A mounting seat (17) is installed on the inner wall of one side of the liquid storage box (15), and a liquid level meter (24) is provided on the outer wall of the mounting seat (17). The output end of the liquid level meter (24) is electrically connected to the input end of the single chip microcomputer inside the control panel (5).

5. The stripping tower in a sulfuric acid preparation process according to claim 2, characterized in that: A water pump (16) is installed on one side of the top of the liquid storage tank (15); an input end of the water pump (16) is electrically connected to an output end of a single chip microcomputer inside the control panel (5); one end of the water pump (16) extends to the bottom of the liquid storage tank (15) through a conduit; and the other end of the liquid storage tank (15) is connected to the top of the liquid passage pipe (13) through a conduit.

6. The stripping tower in a sulfuric acid preparation process according to claim 4, characterized in that: Positioning pins (25) are installed on the outer walls of the mounting seats (17) on both sides of the liquid level meter (24), and one end of the positioning pin (25) passes through the mounting seat (17) and is connected to the inner wall of the liquid storage box (15).

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