Tail gas desulfurization device for secondary zinc oxide production line

Abstract

The utility model discloses a secondary zinc oxide production line tail gas desulfurization device which comprises a tower body, a gas inlet pipe is arranged in a gas inlet formed in the front side of the outer arc surface of the tower body, a gas inlet valve is connected in series in the middle of the gas inlet pipe, a blow-off pipe is arranged in a blow-off opening formed in the lower side of the outer arc surface of the tower body, and a blow-off valve is connected in series in the middle of the blow-off pipe. A mounting cover is arranged on the left side in the tower body, and an exhaust port is formed in the middle of the upper end of the tower body; the spraying mechanism comprises a six-edge sliding column, connecting seats, a mounting pipe and nozzles, the six-edge sliding column is arranged on the upper side of the interior of the tower body, and the front side and the rear side of the exterior of the six-edge sliding column are both slidably connected with the connecting seats, according to the tail gas desulfurization device for the secondary zinc oxide production line, the nozzle coverage area is further increased, the number of the nozzles is reduced, the structure is simple, and the practicability is high. Complicated pipelines and control systems do not need to be laid, so that the cost is reduced, and meanwhile, the subsequent maintenance pressure is relatively small.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization equipment technology, specifically a desulfurization device for tail gas of a zinc oxide production line. Background Technology

[0002] The desulfurization unit for the tail gas of the zinc oxide production line is an environmental protection device used to treat the sulfides in the tail gas generated during the zinc oxide production process. Zinc oxide is an important industrial raw material, widely used in rubber, coatings, plastics, pharmaceuticals, cosmetics and other fields. During the production process of zinc oxide, tail gas containing hydrogen sulfide (H2S) and other sulfur oxides may be generated. These gases are harmful to the environment and human health, so they need to be treated by a desulfurization unit.

[0003] During operation, the desulfurization device for the tail gas of the zinc oxide production line typically injects the tail gas into the desulfurization tower. As the tail gas floats upward in the tower, calcium carbonate solution is sprayed simultaneously through multiple nozzles. As the calcium carbonate solution falls, it adsorbs the sulfur dioxide in the tail gas, thereby achieving the desulfurization of the tail gas.

[0004] Existing desulfurization devices for the tail gas of zinc oxide production lines can perform desulfurization by spraying calcium carbonate solution simultaneously through multiple sets of nozzles. However, the large number of nozzles makes the entire desulfurization system more complex, requiring more complex pipelines and control systems, resulting in higher costs and increased maintenance workload. Therefore, we propose a new desulfurization device for the tail gas of zinc oxide production lines. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a desulfurization device for the tail gas of a zinc oxide production line. It further increases the coverage area of ​​the nozzles, reduces the number of nozzles, has a simple structure, does not require the laying of complex pipelines and control systems, reduces costs, and also reduces the pressure of subsequent maintenance. It can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a desulfurization device for tail gas of a zinc oxide production line, comprising a tower body, an air inlet pipe installed in the air inlet port on the front side of the outer arc surface of the tower body, an air inlet valve connected in series in the middle of the air inlet pipe, a drain pipe installed in the drain port on the lower side of the outer arc surface of the tower body, a drain valve connected in series in the middle of the drain pipe, an installation cover installed on the left side inside the tower body, an exhaust port installed in the middle of the upper end of the tower body, and a spraying mechanism.

[0007] The spray mechanism includes a hexagonal sliding column, connecting seats, mounting pipes, and spray nozzles. The hexagonal sliding column is located on the upper side of the tower body. Connecting seats are slidably connected to the front and rear sides of the hexagonal sliding column. Mounting pipes are provided at the lower ends of the connecting seats. Spray nozzles are installed in the mounting grooves opened on the lower side of the outer arc surface of the mounting pipes. This further increases the coverage area of ​​the spray nozzles, reduces the number of spray nozzles, and has a simple structure. It does not require the laying of complex pipelines and control systems, which reduces costs and also reduces the pressure of subsequent maintenance.

[0008] Furthermore, it also includes a control switch, which is located outside the tower body. The input terminal of the control switch is electrically connected to an external power source and can regulate the electrical components inside the equipment.

[0009] Furthermore, the spraying mechanism also includes a water inlet pipe and a delivery hose. The water inlet pipe is located in the water inlet on the right side of the outer arc surface of the tower body. The air inlet pipe is located between the water inlet pipe and the sewage pipe. A water inlet valve is connected in series in the middle of the water inlet pipe. The two installation pipes are connected to each other through the delivery hose. The front end of the water inlet pipe is connected to the connecting groove on the rear side of the outer arc surface of the delivery hose, which can inject calcium carbonate solution into the interior of the spray nozzle.

[0010] Furthermore, the spraying mechanism also includes uprights, connecting plates, and adjusting rods. The uprights are all rotatably connected to the right side inside the mounting cover. A connecting plate is provided in the middle of the outer arc surface of each upright. The connecting plates are all located in the clearance groove provided in the middle of the right end of the mounting cover. An adjusting groove is provided on the right side of the upper end of each connecting plate. The adjusting rods are all located at the upper end of the connecting seat. The upper ends of the adjusting rods are respectively located inside the vertically adjacent adjusting grooves, which can adjust the position of the spray head.

[0011] Furthermore, torsion springs are movably sleeved on the upper side of the outer arc surface of each upright. The upper ends of the torsion springs are fixedly connected to the top wall of the mounting cover, and the lower ends of the torsion springs are fixedly connected to the outer arc surfaces of the vertically adjacent uprights. The torsion springs drive the connecting plate to rotate and reset through the uprights.

[0012] Furthermore, a mounting rod is provided on the lower side inside the mounting cover. A push plate is slidably connected to the right side of the outer arc surface of the mounting rod. The right end of the connecting plate is in contact with the left end of the push plate. The push plate is slidably connected to the bottom wall of the mounting cover. A rack plate is provided on the lower side of the left end of the push plate. A motor is provided at the lower end of the mounting cover. A half gear is provided at the upper end of the motor output shaft. The half gear is installed in conjunction with the rack plate. A protective cover is provided on the right side of the lower end of the mounting cover. The motor is located inside the protective cover. The input end of the motor is electrically connected to the output end of the control switch, which can drive the connecting plate to rotate around the upright.

[0013] Furthermore, a spring is provided between the left end of the push plate and the inner wall of the tower body. The spring is sleeved on the outside of the left side of the mounting rod, and the thrust generated by the extension of the spring drives the push plate to move to the right and reset.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The desulfurization device for the tail gas of the zinc oxide production line has the following advantages:

[0015] By using the connecting plate and adjusting rod in combination, the nozzle can be driven to perform longitudinal reciprocating motion during the spraying of calcium carbonate solution, which further increases the nozzle coverage area, reduces the number of nozzles required, has a simple structure, does not require the laying of complex pipelines and control systems, reduces costs, and also reduces subsequent maintenance pressure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the spraying mechanism of this utility model.

[0018] In the diagram: 1. Tower body, 2. Control switch, 3. Air inlet pipe, 4. Exhaust port, 5. Sewage pipe, 6. Mounting cover, 7. Spraying mechanism, 71. Hexagonal sliding column, 72. Connecting seat, 73. Mounting pipe, 74. Spray head, 75. Water inlet pipe, 76. Conveying hose, 77. Upright pole, 78. Connecting plate, 79. Adjusting rod, 8. Torsion spring, 9. Mounting rod, 10. Push plate, 11. Rack plate, 12. Motor, 13. Half gear, 14. Protective cover, 15. Spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-2 This embodiment provides a technical solution: a desulfurization device for tail gas of a zinc oxide production line, including a tower body 1, an air inlet pipe 3 is provided in the air inlet on the front side of the outer arc surface of the tower body 1, an air inlet valve is connected in series in the middle of the air inlet pipe 3, a drain pipe 5 is provided in the drain outlet on the lower side of the outer arc surface of the tower body 1, a drain valve is connected in series in the middle of the drain pipe 5, an installation cover 6 is provided on the left side inside the tower body 1, an exhaust port 4 is provided in the middle of the upper end of the tower body 1, and a spraying mechanism 7 is also included.

[0021] The spraying mechanism 7 includes a hexagonal sliding column 71, a connecting seat 72, an installation pipe 73, and a nozzle 74. The hexagonal sliding column 71 is located on the upper side inside the tower body 1. The connecting seats 72 are slidably connected to the front and rear sides of the hexagonal sliding column 71. The lower end of each connecting seat 72 is provided with an installation pipe 73. The nozzle 74 is installed in the installation groove opened on the lower side of the outer arc surface of the installation pipe 73. The spraying mechanism 7 also includes a water inlet pipe 75 and a conveying hose 76. The water inlet pipe 75 is located in the water inlet on the right side of the outer arc surface of the tower body 1. The air inlet pipe 3 is located between the water inlet pipe 75 and the sewage pipe 5. A water inlet valve is connected in series in the middle of the water inlet pipe 75. The two installation pipes 73 are connected by the conveying hose 76. The front end of the water inlet pipe 75 is connected to the connecting groove opened on the rear side of the outer arc surface of the conveying hose 76. The spraying mechanism 7 also includes a vertical pole. 77. Connecting plate 78 and adjusting rod 79, and upright 77 are all rotatably connected to the right side inside the mounting cover 6. Connecting plate 78 is provided in the middle of the outer arc surface of upright 77. Connecting plate 78 is located in the clearance groove in the middle of the right end of mounting cover 6. Adjusting groove is provided on the right side of the upper end of connecting plate 78. Adjusting rod 79 is provided at the upper end of connecting seat 72. The upper end of adjusting rod 79 is located inside the vertically adjacent adjusting groove. Through the cooperation of connecting plate 78 and adjusting rod 79, the nozzle 74 can be driven to perform longitudinal reciprocating motion during the spraying of calcium carbonate solution by the nozzle 74, which further increases the coverage area of ​​nozzle 74, reduces the number of nozzles 74, has a simple structure, does not require laying complex pipes and control systems, reduces costs, and has relatively low subsequent maintenance pressure.

[0022] It also includes a control switch 2, which is located outside the tower body 1. The input terminal of the control switch 2 is electrically connected to an external power supply and can regulate the electrical components inside the equipment.

[0023] Among them, torsion springs 8 are movably sleeved on the upper side of the outer arc surface of the upright 77. The upper end of the torsion springs 8 is fixedly connected to the top wall of the mounting cover 6, and the lower end of the torsion springs 8 is fixedly connected to the outer arc surface of the vertically adjacent upright 77. The torsion springs 8 drive the connecting plate 78 to rotate and reset through the upright 77.

[0024] The mounting cover 6 has a mounting rod 9 on its lower side inside. A push plate 10 is slidably connected to the right side of the outer arc surface of the mounting rod 9. The right end of the connecting plate 78 is in contact with the left end of the push plate 10. The push plate 10 is slidably connected to the bottom wall of the mounting cover 6. A rack plate 11 is provided on the lower side of the left end of the push plate 10. A motor 12 is provided at the lower end of the mounting cover 6. A half-gear 13 is provided at the upper end of the output shaft of the motor 12. The half-gear 13 is installed in conjunction with the rack plate 11. A protective cover is provided on the right side of the lower end of the mounting cover 6. 14. The motor 12 is located inside the protective cover 14. The input end of the motor 12 is electrically connected to the output end of the control switch 2. The motor 12 starts to run through the control switch 2. The output shaft of the motor 12 drives the half gear 13 to rotate. When the half gear 13 meshes with the rack plate 11, the half gear 13 drives the push plate 10 to move to the left through the rack plate 11. The spring 15 contracts. At this time, the connecting plate 78 is pushed by the push plate 10 and begins to rotate around the upright 77.

[0025] Wherein: A spring 15 is provided between the left end of the push plate 10 and the inner wall of the tower body 1. The spring 15 is sleeved on the outside of the left side of the mounting rod 9. The thrust generated by the extension of the spring 15 drives the push plate 10 to move to the right and reset.

[0026] The working principle of the desulfurization device for the tail gas of a zinc oxide production line provided by this utility model is as follows: Before use, first connect the air inlet pipe 3 to the external conveying pipeline, then connect the sewage pipe 5 to the external gypsum discharge pump, and finally connect the water inlet pipe 75 to the external high-pressure pump. During the operation of the desulfurization device for the tail gas of the zinc oxide production line, open the air inlet valve, and the tail gas of the zinc oxide production line is discharged into the interior of the tower body 1 through the air inlet pipe 3. As the tail gas of the zinc oxide production line floats upward in the tower, open the water inlet valve, and the external high-pressure pump injects calcium carbonate solution into the interior of the water inlet pipe 75. The inlet pipe 75 injects calcium carbonate solution into the installation pipe 73 via the delivery hose 76, and finally sprays it out through the nozzle 74. During the descent of the calcium carbonate solution, it adsorbs sulfur dioxide from the exhaust gas of the secondary zinc oxide production line, which then accumulates at the bottom of the tower 1. At this point, the drain valve is opened, and the external gypsum discharge pump discharges the gypsum generated by the reaction of sulfur dioxide and calcium carbonate solution through the drain pipe 5. The desulfurized and purified exhaust gas of the secondary zinc oxide production line is then discharged through the exhaust port 4. During the spraying of calcium carbonate solution by the nozzle 74, the motor 12 is controlled by the switch 2. Upon startup, the output shaft of motor 12 drives the half-gear 13 to rotate. When the half-gear 13 meshes with the rack plate 11, the half-gear 13 drives the push plate 10 to move to the left via the rack plate 11, and the spring 15 contracts. At this time, the connecting plate 78, under the thrust of the push plate 10, begins to rotate around the upright 77, and the torsion spring 8 is twisted. At this time, the adjusting rod 79 slides inside the adjusting groove and rotates relative to the adjusting groove, thereby causing the connecting plate 78 to drive the connecting seat 72 to move towards the end closer to the center of the tower body 1 via the adjusting rod 79. The connecting seat 72 is connected to the mounting tube 7. The spring 15 extends and pushes the push plate 10 to the right to reset. The torsion spring 8 drives the connecting plate 78 to rotate and reset via the upright rod 77. At this time, the adjusting rod 79 slides inside the adjusting groove and rotates relative to the adjusting groove, so that the connecting plate 78 drives the connecting seat 72 to move and reset via the adjusting rod 79. The connecting seat 72 then drives the nozzle 74 to move and reset via the mounting tube 73, thereby driving the nozzle 74 to perform longitudinal reciprocating motion, further increasing the spray area of ​​the nozzle 74.

[0027] It is worth noting that the motor 12 disclosed in the above embodiments can be ECMA-C20604RS, and the control switch 2 is provided with a control button corresponding to the motor 12 for controlling its switching.

[0028] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A desulfurization device for tail gas of a zinc oxide production line, comprising a tower body (1), an air inlet pipe (3) installed in an air inlet on the front side of the outer arc surface of the tower body (1), an air inlet valve connected in series in the middle of the air inlet pipe (3), a drain pipe (5) installed in a drain outlet on the lower side of the outer arc surface of the tower body (1), a drain valve connected in series in the middle of the drain pipe (5), an installation cover (6) installed on the left side inside the tower body (1), and an exhaust port (4) installed in the middle of the upper end of the tower body (1), characterized in that: It also includes a spray system (7); Spraying mechanism (7): It includes a hexagonal sliding column (71), a connecting seat (72), an installation pipe (73) and a nozzle (74). The hexagonal sliding column (71) is located on the upper side inside the tower body (1). The front and rear sides of the hexagonal sliding column (71) are slidably connected to the connecting seat (72). The lower end of the connecting seat (72) is provided with an installation pipe (73). The nozzle (74) is provided in the installation groove opened on the lower side of the outer arc surface of the installation pipe (73).

2. The desulfurization device for the tail gas of a zinc oxide production line according to claim 1, characterized in that: It also includes a control switch (2), which is located outside the tower body (1), and the input end of the control switch (2) is electrically connected to an external power source.

3. The desulfurization device for tail gas of a zinc oxide production line according to claim 1, characterized in that: The spraying mechanism (7) also includes a water inlet pipe (75) and a conveying hose (76). The water inlet pipe (75) is located in the water inlet on the right side of the outer arc surface of the tower body (1). The air inlet pipe (3) is located between the water inlet pipe (75) and the sewage pipe (5). A water inlet valve is connected in series in the middle of the water inlet pipe (75). The two installation pipes (73) are connected by the conveying hose (76). The front end of the water inlet pipe (75) is connected to the connecting groove on the rear side of the outer arc surface of the conveying hose (76).

4. The desulfurization device for the tail gas of a zinc oxide production line according to claim 2, characterized in that: The spraying mechanism (7) also includes a vertical rod (77), a connecting plate (78), and an adjusting rod (79). The vertical rod (77) is rotatably connected to the right side inside the mounting cover (6). A connecting plate (78) is provided in the middle of the outer arc surface of the vertical rod (77). The connecting plate (78) is located in the clearance groove provided in the middle of the right end of the mounting cover (6). An adjusting groove is provided on the right side of the upper end of the connecting plate (78). The adjusting rod (79) is provided at the upper end of the connecting seat (72). The upper end of the adjusting rod (79) is located inside the vertically adjacent adjusting groove.

5. The desulfurization device for the tail gas of a zinc oxide production line according to claim 4, characterized in that: Each of the uprights (77) has a torsion spring (8) movably sleeved on the upper side of its outer arc surface. The upper end of the torsion spring (8) is fixedly connected to the top wall of the mounting cover (6), and the lower end of the torsion spring (8) is fixedly connected to the outer arc surface of the vertically adjacent uprights (77).

6. The desulfurization device for the tail gas of a zinc oxide production line according to claim 4, characterized in that: An installation rod (9) is provided on the lower side inside the mounting cover (6). A push plate (10) is slidably connected to the right side of the outer arc surface of the installation rod (9). The right end of the connecting plate (78) is in contact with the left end of the push plate (10). The push plate (10) is slidably connected to the bottom wall of the mounting cover (6). A rack plate (11) is provided on the lower side of the left end of the push plate (10). A motor (12) is provided at the lower end of the mounting cover (6). A half gear (13) is provided at the upper end of the output shaft of the motor (12). The half gear (13) is installed in conjunction with the rack plate (11). A protective cover (14) is provided on the right side of the lower end of the mounting cover (6). The motor (12) is located inside the protective cover (14). The input end of the motor (12) is electrically connected to the output end of the control switch (2).

7. The desulfurization device for the tail gas of a zinc oxide production line according to claim 6, characterized in that: A spring (15) is provided between the left end of the push plate (10) and the inner wall of the tower body (1), and the spring (15) is sleeved on the outside of the left side of the mounting rod (9).

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