Desulfurization reaction device of yellow phosphorus tail gas dry and wet combined process

Abstract

The utility model relates to the technical field of yellow phosphorus tail gas treatment, in particular to a yellow phosphorus tail gas desulfurization reaction device adopting a dry and wet process combined technology, which comprises a box body, a desulfurization tower, an air blower and a discharge tower, the inner cavity of the box body is connected with a filter screen through a bolt, and the left side of the filter screen is provided with a box body; an inner cavity of the box body is fixedly connected with a sensing mechanism, the top of the box body is sequentially connected with a first water pump and a second water pump through bolts from left to right, and a water outlet pipe of the first water pump and a water inlet pipe of the second water pump communicate with a spiral pipe and a water drainage pipe correspondingly. Through cooperation of the first water pump, the second water pump, the spiral pipe and the box body, the waste heat recovery device has the advantage of being capable of recovering waste heat, an operator discharges water into the spiral pipe through the first water pump, the water can exchange heat with gas, then the water is discharged into the box body, and the second water pump can discharge the water after heat exchange. And the environmental protection property of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of yellow phosphorus tail gas treatment, in particular to a desulfurization reaction device of a yellow phosphorus tail gas dry and wet combined process. Background Art

[0002] With the development and growth of the phosphorus chemical industry, the emission of yellow phosphorus tail gas has continued to increase. The treatment of yellow phosphorus tail gas involves the use of a combination of dry and wet processes, and a desulfurization reaction device is required.

[0003] After searching, the announcement number is CN211886226U, and the name is "Utility Model of Desulfurization Device Sprayed with Anti-aging Coating", which includes a desulfurization device body. Through research and analysis, it is found that although it can reduce the complexity of the internal connection structure of the desulfurization device body during use and can effectively extend the protection time of the anti-aging coating on the desulfurization device, etc., there are still the following disadvantages to a certain extent.

[0004] For example, yellow phosphorus tail gas contains some heat. If the tail gas is directly desulfurized, it will lead to heat loss, the energy-saving and environmental protection benefits of the device are insufficient, and the flue gas cannot be filtered while recovering heat, which brings trouble to the desulfurization process. In order to solve the above technical problems, we have designed a desulfurization reaction device for yellow phosphorus tail gas that combines dry and wet processes. Utility Model Content

[0005] The purpose of the utility model is to provide a desulfurization reaction device of yellow phosphorus tail gas by a dry and wet combined process, which has the advantages of being able to recover waste heat and filtering flue gas while recovering heat, thereby solving the problems of not being able to recover waste heat and being unable to filter flue gas.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a desulfurization reaction device for yellow phosphorus tail gas by a dry and wet combined process, comprising a box body, a desulfurization tower, a blower and a discharge tower, the inner cavity of the box body is connected to a filter screen by bolts, a box body is arranged on the left side of the filter screen, the inner cavity of the box body is fixedly connected to a sensing mechanism, the top of the box body is connected to a first water pump and a second water pump by bolts from left to right in sequence, the water outlet pipe of the first water pump and the water inlet pipe of the second water pump are connected to a spiral pipe and a drain pipe respectively, the right side of the box body is connected to an air intake pipe, the inner cavity of the discharge tower is fixedly connected to a support frame, the surface of the support frame is fixedly connected to a silencer mechanism, and the front side of the box body is fixedly connected to a controller.

[0007] Preferably, the sensing mechanism includes a limit frame, which is fixedly connected to the inner cavity of the box body, and the inner cavity of the limit frame is movably connected to a cleaning roller, the bottom of the cleaning roller penetrates into the inner cavity of the box body, and a buoy is fixedly connected to the left side of the bottom of the cleaning roller, and the buoy is located in the inner cavity of the box body.

[0008] Preferably, the silencer mechanism includes a buffer pad, which is fixedly connected to the surface of the support frame, the bottom of the support frame is fixedly connected with a spring, the number of the springs is four, the bottom of the spring is fixedly connected with an inclined plate, and the opposite side of the inclined plate is fixedly connected with a shock-absorbing ball.

[0009] Preferably, the bottom of the spiral tube penetrates into the inner cavity of the box body, and the front side of the spiral tube is connected to the box body.

[0010] Preferably, a bottom plate is fixedly connected to the left side of the box body, and the blower, the discharge tower and the desulfurization tower are arranged on the top of the bottom plate in sequence from left to right.

[0011] Preferably, the air outlet pipe of the blower is connected to the discharge tower, a guide block is fixedly connected to the right side of the box body, and the top of the box body and the top of the guide block both pass through the box body.

[0012] Preferably, the air inlet pipe and the air outlet pipe of the desulfurization tower are respectively connected to the box body and the blower, the bottom of the drain pipe extends to the inner cavity of the box body, the bottom of the box body is fixedly connected to the inner cavity of the box body, and the output end of the controller is unidirectionally electrically connected to the first water pump and the second water pump respectively.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model has the advantage of being able to recover waste heat through the cooperation of the first water pump, the second water pump, the spiral tube and the box body. The operator discharges water into the spiral tube through the first water pump, the water can exchange heat with the gas and then be discharged into the box body, and the second water pump can discharge the water after heat exchange, which brings convenience to the operator and is conducive to improving the environmental protection of the device.

[0015] 2. The utility model has the advantage of being able to filter flue gas while recovering heat through the cooperation of the filter, the limit frame, the cleaning roller, the buoy and the guide block. The filter can filter the exhaust gas, and when the first water pump drains water into the box body through the spiral tube, the buoy will drive the cleaning roller to move upward, and when the second water pump drains water through the drain pipe, the buoy will drive the cleaning roller to move downward, thereby cleaning the surface of the filter, which is beneficial to improving the filtering performance of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the cross-sectional axial view of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the axial explosion of the local structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the axial explosion of the silencer mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the partial structure of the utility model from the front view.

[0020] In the figure: 1. Box body; 2. Desulfurization tower; 3. Blower; 4. Emission tower; 5. Filter; 6. Box body; 7. Sensing mechanism; 8. First water pump; 9. Second water pump; 10. Spiral tube; 11. Drain pipe; 12. Inlet pipe; 13. Support frame; 14. Silence mechanism; 15. Controller; 16. Limit frame; 17. Cleaning roller; 18. Float; 19. Buffer pad; 20. Spring; 21. Inclined plate; 22. Shock-absorbing ball. DETAILED DESCRIPTION

[0021] See also Figure 1-Figure 4 A desulfurization reaction device of a yellow phosphorus tail gas dry and wet combined process comprises a box body 1, a desulfurization tower 2, a blower 3 and a discharge tower 4. The inner cavity of the box body 1 is connected with a filter screen 5 by bolts, a box body 6 is arranged on the left side of the filter screen 5, and the inner cavity of the box body 6 is fixedly connected with a sensing mechanism 7. The top of the box body 1 is bolted with a first water pump 8 and a second water pump 9 in sequence from left to right. The water outlet pipe of the first water pump 8 and the water inlet pipe of the second water pump 9 are respectively connected with a spiral pipe 10 and a drain pipe 11. The right side of the box body 1 is connected with an air intake pipe 12. The inner cavity of the discharge tower 4 is fixedly connected with a support frame 13, and a silencer mechanism 14 is fixedly connected to the surface of the support frame 13. The front side of the box body 1 is fixedly connected with a controller 15.

[0022] See also Figure 1 and Figure 2 The sensing mechanism 7 includes a limit frame 16, which is fixedly connected to the inner cavity of the box body 6. The inner cavity of the limit frame 16 is movably connected with a cleaning roller 17. The bottom of the cleaning roller 17 penetrates into the inner cavity of the box body 1. A buoy 18 is fixedly connected to the left side of the bottom of the cleaning roller 17. The buoy 18 is located in the inner cavity of the box body 6. By setting the limit frame 16, the cleaning roller 17 can be limited so that the cleaning roller 17 moves up and down, thereby cleaning the filter 5.

[0023] See also Figure 3The silencer mechanism 14 includes a buffer pad 19, which is fixedly connected to the surface of the support frame 13. A spring 20 is fixedly connected to the bottom of the support frame 13. There are four springs 20. An inclined plate 21 is fixedly connected to the bottom of the spring 20. A shock-absorbing ball 22 is fixedly connected to the opposite side of the inclined plate 21. By arranging the buffer pad 19, the spring 20, the inclined plate 21 and the shock-absorbing ball 22, a silencer effect can be achieved, thereby reducing the noise interference of the device to residents.

[0024] See also Figure 1 and Figure 2 The bottom of the spiral tube 10 penetrates into the inner cavity of the box body 1. By setting the first water pump 8 and the spiral tube 10, the water after heat exchange can be discharged into the box body 6, and at the same time, the buoy 18 is driven to rise. The front side of the spiral tube 10 is connected to the box body 6.

[0025] See also Figure 1 The left side of the box body 1 is fixedly connected with a bottom plate, and the blower 3, the discharge tower 4 and the desulfurization tower 2 are arranged on the top of the bottom plate from left to right. The arrangement of the blower 3, the discharge tower 4 and the desulfurization tower 2 is beneficial to the desulfurization process and promotes the treatment of yellow phosphorus tail gas.

[0026] See also Figure 1 The air outlet pipe of the blower 3 is connected to the discharge tower 4. A guide block is fixedly connected to the right side of the box body 6. The guide block is provided to facilitate the flow of exhaust gas, thereby improving the heat exchange effect and facilitating the recovery of waste heat. The top of the box body 6 and the top of the guide block both pass through the box body 1.

[0027] See also Figure 1 , Figure 2 and Figure 4 The air inlet pipe and the air outlet pipe of the desulfurization tower 2 are respectively connected to the box body 1 and the blower 3. The bottom of the drain pipe 11 extends to the inner cavity of the box body 6. By setting the second water pump 9 and the drain pipe 11, the water after heat exchange can be discharged, and the buoy 18 can be driven down at the same time. The bottom of the box body 6 is fixedly connected to the inner cavity of the box body 1, and the output end of the controller 15 is unidirectionally electrically connected to the first water pump 8 and the second water pump 9 respectively.

[0028] During use, the operator discharges exhaust gas into the box body 1 through the air intake pipe 12, and the exhaust gas is filtered by the filter screen 5, and then heat is exchanged with the spiral tube 10. The operator discharges it into the water body through the first water pump 8. After the heat exchange, the water body enters the box body 6, driving the buoy 18 to rise, thereby causing the cleaning roller 17 to move upward. When discharging the water body after the heat exchange, the operator operates the controller 15 to control the second water pump 9 to drive the drain pipe 11 to extract the water body in the box body 6. At this time, the buoy 18 drops, driving the cleaning roller 17 to move downward, and the process of the cleaning roller 17 moving up and down can clean the filter screen 5, which is beneficial to improving the filtering effect. The exhaust gas is desulfurized through the desulfurization tower 2, and then enters the discharge tower 4 for discharge under the action of the blower 3. The exhaust gas contacts the inclined block. Since the bottom surface of the inclined block is inclined, the contact with the exhaust gas can compress the spring 20, and the shock-absorbing balls 22 move toward each other and squeeze the buffer pad 19, thereby playing a shock-absorbing and buffering role, thereby achieving the purpose of silencing.

[0029] In summary: the desulfurization reaction device of the yellow phosphorus tail gas dry and wet combined process, through the cooperation of the first water pump 8, the second water pump 9, the spiral tube 10, the box body 6, the filter screen 5, the limit frame 16, the cleaning roller 17, the buoy 18 and the guide block, solves the problem of usually not having the advantage of being able to recover waste heat and being unable to filter flue gas.

Claims

1. A desulfurization reaction device for yellow phosphorus tail gas using a dry and wet combined process, comprising a housing (1), a desulfurization tower (2), a blower (3) and a discharge tower (4), characterized in that: The inner cavity of the box body (1) is connected to a filter screen (5) by bolts, a box body (6) is arranged on the left side of the filter screen (5), the inner cavity of the box body (6) is fixedly connected to a sensing mechanism (7), the top of the box body (1) is connected to a first water pump (8) and a second water pump (9) by bolts from left to right, the water outlet pipe of the first water pump (8) and the water inlet pipe of the second water pump (9) are respectively connected to a spiral pipe (10) and a drainage pipe (11), the right side of the box body (1) is connected to an air intake pipe (12), the inner cavity of the discharge tower (4) is fixedly connected to a support frame (13), the surface of the support frame (13) is fixedly connected to a silencer mechanism (14), and the front side of the box body (1) is fixedly connected to a controller (15).

2. The desulfurization reaction device of a yellow phosphorus tail gas combined dry and wet process according to claim 1 is characterized in that: The sensing mechanism (7) comprises a limit frame (16), the limit frame (16) is fixedly connected to the inner cavity of the box body (6), the inner cavity of the limit frame (16) is movably connected to a cleaning roller (17), the bottom of the cleaning roller (17) penetrates into the inner cavity of the box body (1), the left side of the bottom of the cleaning roller (17) is fixedly connected to a buoy (18), and the buoy (18) is located in the inner cavity of the box body (6).

3. The desulfurization reaction device of a yellow phosphorus tail gas combined dry and wet process according to claim 1 is characterized in that: The silencer mechanism (14) comprises a buffer pad (19), the buffer pad (19) being fixedly connected to the surface of the support frame (13), the bottom of the support frame (13) being fixedly connected to a spring (20), the number of the springs (20) being four, the bottom of the spring (20) being fixedly connected to an inclined plate (21), and a damping ball (22) being fixedly connected to the opposite side of the inclined plate (21).

4. The desulfurization reaction device of a yellow phosphorus tail gas combined dry and wet process according to claim 1 is characterized in that: The bottom of the spiral tube (10) penetrates into the inner cavity of the box body (1), and the front side of the spiral tube (10) is connected to the box body (6).

5. The desulfurization reaction device of a yellow phosphorus tail gas combined dry and wet process according to claim 1 is characterized in that: The left side of the box body (1) is fixedly connected to a bottom plate, and the blower (3), the discharge tower (4) and the desulfurization tower (2) are arranged on the top of the bottom plate in sequence from left to right.

6. The desulfurization reaction device of a yellow phosphorus tail gas combined dry and wet process according to claim 1 is characterized in that: The air outlet pipe of the blower (3) is connected to the discharge tower (4), a guide block is fixedly connected to the right side of the box body (6), and the top of the box body (6) and the top of the guide block both penetrate the box body (1).

7. The desulfurization reaction device of a yellow phosphorus tail gas combined dry and wet process according to claim 1 is characterized in that: The air inlet pipe and the air outlet pipe of the desulfurization tower (2) are respectively connected to the box body (1) and the blower (3); the bottom of the drainage pipe (11) extends to the inner cavity of the box body (6); the bottom of the box body (6) is fixedly connected to the inner cavity of the box body (1); and the output end of the controller (15) is unidirectionally electrically connected to the first water pump (8) and the second water pump (9).

Images