Ammonia-containing tail gas treatment device

Abstract

The utility model relates to the field of tail gas treatment and discloses an ammonia-containing tail gas treatment device. The device comprises a treatment mechanism, a treatment liquid conveying and recycling mechanism, a protection frame, a movable conveying mechanism and a pretreatment filtering mechanism, the treatment mechanism comprises a treatment box, an activated carbon net II is arranged at the upper end in the treatment box, an activated carbon net I is arranged at the middle end in the treatment box, and a recycling and filtering mechanism is arranged at the lower end of the treatment box; the pretreatment filtering mechanism comprises a filtering box, a concave strip, an activated carbon filtering net, an air inlet pipe, an air suction pipe, a fan, an inclined plate, a one-way valve, a tail gas conveying pipe and an air outlet pipe; ammonia gas is primarily filtered by the pretreatment filtering mechanism and conveyed into the treatment box through the tail gas conveying pipe and the gas outlet pipe, after conveying, along with rising of the ammonia gas, movable spraying is conducted through the treatment liquid conveying and recycling mechanism and the movable conveying mechanism, and liquid falling into the treatment box after spraying is filtered through the recycling and filtering mechanism.

Description

Technical Field

[0001] This application belongs to the field of exhaust gas treatment technology, specifically an ammonia-containing exhaust gas treatment device. Background Technology

[0002] You can briefly describe this device;

[0003] A search of patent document CN208786110U discloses an ammonia treatment device, including a treatment box. A spray device is installed at the top of the interior of the treatment box. An ammonia inlet pipe and a nitrogen inlet pipe are fixedly connected to the left end face of the treatment box, both communicating with the interior of the treatment box. A ventilation device is fixedly installed on the left end face of the treatment box, located below the nitrogen inlet pipe. This utility model is an ammonia treatment device that, by incorporating a spray device, a mixing device, a cooling device, and a ventilation device, achieves efficient recovery and utilization of ammonia and protects the health and safety of cleaning personnel. It solves the problem that using chemical reactions to treat ammonia-containing waste gas is wasteful of resources and cannot effectively utilize ammonia, and that residual ammonia in the equipment poses a serious health hazard to workers during maintenance.

[0004] However, it was discovered during actual use that the device places the ammonia gas inlet pipe on one side of the spray device and sets the ammonia gas inlet pipe at a height similar to the water outlet of the spray device. This makes it easy for some ammonia gas to float to the top of the water outlet of the spray device before it comes into contact with the spray water, at which point the ammonia gas is difficult to come into contact with the water. Therefore, an ammonia-containing tail gas treatment device is provided. Utility Model Content

[0005] The purpose of this application is to provide an ammonia-containing tail gas treatment device in order to solve the problems mentioned above.

[0006] The technical solution adopted in this application is as follows: An ammonia-containing tail gas treatment device includes a treatment mechanism, a treatment liquid conveying and recovery mechanism arranged on the right side of the treatment mechanism, a protective frame fixedly connected to the left side of the treatment mechanism, a movable conveying mechanism arranged at the upper inside of the protective frame, a pretreatment filtration mechanism arranged at the lower inside of the protective frame, the treatment mechanism including a treatment box, an activated carbon mesh II arranged at the upper inside of the treatment box, an activated carbon mesh I arranged at the middle inside of the treatment box, and a recovery filtration mechanism arranged at the lower inside of the treatment box; the pretreatment filtration mechanism... The device includes a filter box, with a concave strip fixedly connected to the upper inner wall of the filter box. An activated carbon filter screen is slidably connected inside the concave strip. An air inlet pipe is fixedly connected to the lower left side of the filter box. An air suction pipe is fixedly connected to the upper end of the filter box. A fan is fixedly connected to the upper end of the air suction pipe. An inclined plate is fixedly connected to the bottom inside the filter box. A one-way valve is provided on the right side of the filter box. The right side of the fan is fixedly connected to the left side of the treatment box. An exhaust gas delivery pipe is fixedly connected to the right side of the fan. Multiple sets of exhaust gas delivery pipes are fixedly connected to the upper end of the exhaust gas delivery pipe.

[0007] By adopting the above technical solution, ammonia gas is initially filtered by the pretreatment filtration mechanism and then transported to the interior of the treatment tank through the tail gas conveying pipe and the outlet pipe. After being transported, as the ammonia gas rises, it is moved and sprayed by the treatment liquid conveying and recovery mechanism and the moving conveying mechanism. The liquid that falls into the treatment tank after spraying is filtered by the recovery filtration mechanism.

[0008] In a preferred embodiment, the treatment liquid conveying and recovery mechanism includes a conveying box, a conveying pump fixedly connected to the upper end of the conveying box, a conveying pipe fixedly connected to the right side of the conveying pump, a second conveying pipe fixedly connected to the left side of the conveying pump, a connecting hose fixedly connected to the left side of the second conveying pipe, a connecting pipe fixedly connected to the lower end of the connecting hose, a conveying plate fixedly connected to the lower end of the connecting pipe, multiple sets of nozzles fixedly connected to the lower end of the conveying plate, and an inlet pipe fixedly connected to the upper end of the conveying box.

[0009] By adopting the above technical solution, the liquid inlet pipe can add liquid to the inside of the delivery box. The liquid inside the delivery box can be transported through the delivery pump, delivery pipe, delivery pipe 2 and connecting hose. After being transported to the inside of the treatment box, it is sprayed through the delivery plate and nozzle connected to the connecting hose.

[0010] In a preferred embodiment, the moving conveying mechanism includes a bidirectional motor, a threaded rod is fixedly connected to the right output end of the bidirectional motor, the right side of the threaded rod is rotatably connected to the inside right side of the processing box, a slide block is threadedly connected to the outer end of the threaded rod, a slide rod is fixedly connected to the inner wall of the processing box, and the slide block is slidably connected to the slide rod.

[0011] By adopting the above technical solution, the slide block connected to the threaded rod can be moved by the bidirectional motor driving the threaded rod. During the movement, the slide block can be limited by sliding with the slide rod.

[0012] In a preferred embodiment, a connecting rod is fixedly connected to the upper end of the slide block, and a cleaning brush is fixedly connected to the upper end of the connecting rod. The upper end of the cleaning brush abuts against the lower end of the activated carbon mesh. A slider is slidably connected to the outer end of the slide rod, and a return spring is fixedly connected to the outer end of the slider. The return spring is slidably connected to the outer end of the slide rod, and the end of the return spring away from the slider is fixedly connected to the inner wall of the processing box.

[0013] By adopting the above technical solution, the cleaning brush can remove impurities attached to the upper end of the activated carbon mesh.

[0014] In a preferred embodiment, a pulley mechanism 1 is fixedly connected to the left output end of the bidirectional motor, a rotating rod is fixedly connected to the lower output end of the pulley mechanism 1, a cam is fixedly connected to the right side of the rotating rod through the processing box, a pulley mechanism 2 is fixedly connected to the left side of the rotating rod, a rotating rod is fixedly connected to the lower right end of the pulley mechanism 2, and multiple sets of stirring blades are fixedly connected to the outer end of the rotating rod inside the processing box, and the right side of the rotating rod is rotatably connected to the right side of the inside of the processing box.

[0015] By adopting the above technical solution, the pulley mechanism one and pulley mechanism two are existing structures, consisting of a conveyor belt and two sets of pulleys. The pulley mechanism two can drive the stirring blade to rotate, thereby agitating the liquid inside the processing tank.

[0016] In a preferred embodiment, the recycling and filtration mechanism includes a recycling frame, a sliding plate fixedly connected to the upper end of the inner wall of the recycling frame, a filter frame slidably connected to the upper end of the sliding plate, a second inclined plate fixedly connected to the bottom inner end of the recycling frame, a second recycling conveying pipe fixedly connected to the lower right side of the recycling frame, a recycling pump fixedly connected to the left side of the second recycling pipe, a recycling conveying pipe fixedly connected to the right side of the recycling pump, the movement of the recycling conveying pipe away from the recycling pump being fixedly connected to the upper end of the conveying box, and the left side of the recycling pump being fixedly connected to the outer right side of the processing box.

[0017] By adopting the above technical solution, the filter frame is composed of a filter screen, which can filter solid impurities inside the treatment tank, and the filtered liquid can be transported to the inside of the transport tank by a recovery pump.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0019] In this application, ammonia-containing exhaust gas is drawn in by a blower. During the drawing process, the exhaust gas enters the filter box through the inlet pipe and undergoes initial filtration through an activated carbon filter. The initially filtered exhaust gas is then transported to the interior of the treatment box via the suction pipe, blower, exhaust gas delivery pipe, and outlet pipe. When excessive impurities adhere to the bottom of the activated carbon filter, the bottom of the filter can be tapped by rotating a cam. The impurities falling from the activated carbon filter are then transported to the interior of the treatment box via an inclined plate. Subsequently, the liquid inside the treatment box is transported through a delivery pump, delivery pipe, delivery pipe II, and connecting hose. The ammonia gas is conveyed through connecting pipes, conveying plates, and nozzles. During conveying, a bidirectional motor drives a threaded rod to rotate, which in turn moves a sliding block threaded to the rod. The sliding block is limited during movement, allowing the conveying plate to move and spray. As the exhaust gas rises, an activated carbon mesh filters the gas while slowing its ascent. Finally, the filtered liquid is filtered through a filter frame and then transported to the inside of the conveying box for secondary use via a recovery pump and recovery conveying pipe. Through the combination of the above structures, ammonia gas and sprayed liquid achieve full-area contact. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this application;

[0021] Figure 2 This is a schematic diagram of the internal structure in this application;

[0022] Figure 3 This is a schematic diagram of the pretreatment filtration mechanism in this application;

[0023] Figure 4 For this application Figure 2 Enlarged view of point A.

[0024] Markings in the diagram: 1. Processing mechanism; 101. Processing box; 102. Activated carbon mesh two; 103. Activated carbon mesh one; 2. Processing liquid conveying and recovery mechanism; 201. Conveying box; 202. Conveying pump; 203. Conveying pipe; 204. Inlet pipe; 205. Conveying pipe two; 206. Connecting hose; 207. Connecting pipe; 208. Conveying plate; 209. Nozzle; 210. Connecting rod; 211. Cleaning brush; 3. Protective frame; 4. Pretreatment filtration mechanism; 401. Filter box; 402. Concave strip; 403. Activated carbon filter screen; 404. Air inlet pipe 405. Suction pipe; 406. Fan; 407. Inclined plate; 408. One-way valve; 5. Recovery and filtration mechanism; 501. Recovery frame; 502. Slide plate; 503. Filter frame; 504. Inclined plate II; 6. Moving conveyor mechanism; 601. Bidirectional motor; 602. Threaded rod; 603. Slide seat; 604. Slide rod; 7. Slider; 8. Return spring; 9. Recovery pump; 10. Recovery conveying pipe; 11. Pulley mechanism I; 12. Pulley mechanism II; 13. Rotating rod; 14. Exhaust gas conveying pipe; 15. Exhaust pipe; 16. Stirring blade; 17. Cam. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] Example:

[0027] Reference Figure 1-4A device for treating ammonia-containing exhaust gas includes a treatment mechanism 1, a treatment liquid conveying and recovery mechanism 2 on the right side of the treatment mechanism 1, a protective frame 3 fixedly connected to the left side of the treatment mechanism 1, a moving conveying mechanism 6 on the upper inside of the protective frame 3, and a pretreatment filtration mechanism 4 on the lower inside of the protective frame 3. The treatment mechanism 1 includes a treatment box 101, an activated carbon mesh 102 on the upper inside of the treatment box 101, an activated carbon mesh 103 on the middle inside of the treatment box 101, and a recovery filtration mechanism 5 on the lower inside of the treatment box 101. The pretreatment filtration mechanism 4 includes a filter box 401, a concave strip 402 fixedly connected to the upper inside wall of the filter box 401, an activated carbon filter 403 slidably connected inside the concave strip 402, and an air inlet pipe 4 fixedly connected to the lower left side of the filter box 401. 04. A suction pipe 405 is fixedly connected to the upper end of the filter box 401, and a fan 406 is fixedly connected to the upper end of the suction pipe 405. An inclined plate 407 is fixedly connected to the bottom of the filter box 401. A one-way valve 408 is provided on the right side of the filter box 401. The right side of the fan 406 is fixedly connected to the left side of the treatment box 101. A tail gas conveying pipe 14 is fixedly connected to the right side of the fan 406. Multiple sets of exhaust pipes 15 are fixedly connected to the upper end of the tail gas conveying pipe 14. Ammonia gas is initially filtered by the pretreatment filter mechanism 4 and then conveyed to the interior of the treatment box 101 through the tail gas conveying pipe 14 and the exhaust pipes 15. After being conveyed, as the ammonia gas rises, it is moved and sprayed through the treatment liquid conveying and recovery mechanism 2 and the moving conveying mechanism 6. The liquid that falls into the interior of the treatment box 101 after spraying is filtered by the recovery filter mechanism 5.

[0028] Reference Figure 1-4 The treatment liquid conveying and recovery mechanism 2 includes a conveying box 201. A conveying pump 202 is fixedly connected to the upper end of the conveying box 201. A conveying pipe 203 is fixedly connected to the right side of the conveying pump 202. A second conveying pipe 205 is fixedly connected to the left side of the second conveying pipe 205. A connecting hose 206 is fixedly connected to the left side of the second conveying pipe 205. A connecting pipe 207 is fixedly connected to the lower end of the connecting hose 206. A conveying plate 208 is fixedly connected to the lower end of the connecting pipe 207. Multiple sets of nozzles 209 are fixedly connected to the lower end of the conveying plate 208. An inlet pipe 204 is fixedly connected to the upper end of the conveying box 201. The inlet pipe 204 can add liquid to the inside of the conveying box 201. The liquid inside the conveying box 201 can be conveyed through the conveying pump 202, the conveying pipe 203, the second conveying pipe 205 and the connecting hose 206. After being conveyed to the inside of the treatment box 101, it is sprayed through the conveying plate 208 and the nozzles 209 connected to the connecting hose 206.

[0029] Reference Figure 1-4The mobile conveying mechanism 6 includes a bidirectional motor 601. A threaded rod 602 is fixedly connected to the right output end of the bidirectional motor 601. The right side of the threaded rod 602 is rotatably connected to the inside right side of the processing box 101. A slide block 603 is threadedly connected to the outer end of the threaded rod 602. A slide rod 604 is fixedly connected to the inner wall of the processing box 101. The slide block 603 and the slide rod 604 are slidably connected. The bidirectional motor 601 drives the threaded rod 602, which can drive the slide block 603 threadedly connected to the threaded rod 602 to move. During movement, the slide block 603 can be limited by sliding with the slide rod 604.

[0030] Reference Figure 1-4 A connecting rod 210 is fixedly connected to the upper end of the slide block 603. A cleaning brush 211 is fixedly connected to the upper end of the connecting rod 210. The upper end of the cleaning brush 211 abuts against the lower end of the activated carbon mesh 102. A slider 7 is slidably connected to the outer end of the slide rod 604. A return spring 8 is fixedly connected to the outer end of the slider 7. The return spring 8 is slidably connected to the outer end of the slide rod 604. The end of the return spring 8 away from the slider 7 is fixedly connected to the inner wall of the processing box 101. The cleaning brush 211 can clean the impurities attached to the upper end of the activated carbon mesh 102.

[0031] Reference Figure 1-4 A pulley mechanism 11 is fixedly connected to the left output end of the bidirectional motor 601. A rotating rod is fixedly connected to the lower output end of the pulley mechanism 11. A cam 17 is fixedly connected to the right side of the rotating rod through the processing tank 101. A pulley mechanism 2 12 is fixedly connected to the left side of the rotating rod. A rotating rod 13 is fixedly connected to the lower right end of the pulley mechanism 2 12. Multiple sets of stirring blades 16 are fixedly connected to the outer end of the rotating rod 13 inside the processing tank 101. The right side of the rotating rod 13 is rotatably connected to the right side of the inside of the processing tank 101. The pulley mechanism 11 and the pulley mechanism 2 12 are existing structures, consisting of a conveyor belt and two sets of pulleys. The pulley mechanism 2 12 can drive the stirring blades 16 to rotate, thereby agitating the liquid inside the processing tank 101.

[0032] Reference Figure 1-4 The recycling and filtration mechanism 5 includes a recycling frame 501, a sliding plate 502 fixedly connected to the upper end of the inner wall of the recycling frame 501, a filter frame 503 slidably connected to the upper end of the sliding plate 502, an inclined plate 504 fixedly connected to the bottom inside the recycling frame 501, a recycling conveying pipe 2 fixedly connected to the lower right side of the recycling frame 501, a recycling pump 9 fixedly connected to the left side of the recycling pipe 2, a recycling conveying pipe 10 fixedly connected to the right side of the recycling pump 9, the recycling conveying pipe 10 moving away from the recycling pump 9 and fixedly connected to the upper end of the conveying box 201, the left side of the recycling pump 9 fixedly connected to the outer right side of the processing box 101, the filter frame 503 is composed of a filter screen, which can filter solid impurities inside the processing box 101, and the filtered liquid can be conveyed to the inside of the conveying box 201 through the recycling pump 9.

[0033] The implementation principle of an embodiment of an ammonia-containing tail gas treatment device in this application is as follows:

[0034] In use, the device is connected to an external power source. Ammonia-containing exhaust gas is drawn in by the blower 406. During the drawing process, the exhaust gas enters the filter box 401 through the inlet pipe 404 and undergoes initial filtration through the activated carbon filter 403. The initially filtered exhaust gas is then transported to the processing box 101 through the suction pipe 405, the blower 406, the exhaust gas delivery pipe 14, and the outlet pipe 15. When excessive impurities adhere to the bottom of the activated carbon filter 403, the bottom of the activated carbon filter 403 can be tapped by rotating the cam 17. The impurities falling from the activated carbon filter 403 are then transported to the processing box 101 through the inclined plate 407. Subsequently, the gas is transported through the delivery pump 202, delivery pipe 203, delivery pipe 205, and connecting flexible... Pipe 206 transports the liquid inside the delivery box 201 through connecting pipe 207, delivery plate 208, and nozzle 209. During transport, the threaded rod 602 is rotated by bidirectional motor 601, which in turn moves the slide block 603 threadedly connected to the threaded rod 602. The movement is limited by sliding with slide bar 604, thus allowing the delivery plate 208 to move and spray. When the exhaust gas rises, activated carbon mesh 103 filters the exhaust gas while slowing its rise. Finally, the filtered liquid is filtered through filter frame 503 and then transported to the inside of delivery box 201 for secondary use through recovery pump 9 and recovery delivery pipe 10. Through the cooperation of the above structures, ammonia gas and sprayed liquid are in full-area contact.

[0035] 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An ammonia-containing tail gas treatment device, comprising a treatment mechanism (1), characterized in that: The processing mechanism (1) is provided with a processing liquid conveying and recovery mechanism (2) on the right side, and a protective frame (3) is fixedly connected to the left side of the processing mechanism (1). A moving conveying mechanism (6) is provided at the upper inside of the protective frame (3), and a pretreatment filtration mechanism (4) is provided at the lower inside of the protective frame (3). The processing mechanism (1) includes a processing box (101). An activated carbon mesh 2 (102) is provided at the upper inside of the processing box (101), an activated carbon mesh 1 (103) is provided at the middle inside of the processing box (101), and a recovery filtration mechanism (5) is provided at the lower inside of the processing box (101). The pretreatment filtration mechanism (4) includes a filter box (401), a concave strip (402) is fixedly connected to the upper end of the inner wall of the filter box (401), an activated carbon filter screen (403) is slidably connected inside the concave strip (402), an air inlet pipe (404) is fixedly connected to the lower left side of the filter box (401), an air suction pipe (405) is fixedly connected to the upper end of the filter box (401), a fan (406) is fixedly connected to the upper end of the air suction pipe (405), an inclined plate (407) is fixedly connected to the bottom inside the filter box (401), a one-way valve (408) is provided on the right side of the filter box (401), the right side of the fan (406) is fixedly connected to the left side of the treatment box (101), a tail gas conveying pipe (14) is fixedly connected to the right side of the fan (406), and multiple sets of exhaust pipes (15) are fixedly connected to the upper end of the tail gas conveying pipe (14).

2. The ammonia-containing tail gas treatment device as described in claim 1, characterized in that: The treatment liquid conveying and recovery mechanism (2) includes a conveying box (201), a conveying pump (202) is fixedly connected to the upper end of the conveying box (201), a conveying pipe (203) is fixedly connected to the right side of the conveying pump (202), a second conveying pipe (205) is fixedly connected to the left side of the conveying pump (202), a connecting hose (206) is fixedly connected to the left side of the second conveying pipe (205), a connecting pipe (207) is fixedly connected to the lower end of the connecting hose (206), a conveying plate (208) is fixedly connected to the lower end of the connecting pipe (207), a plurality of nozzles (209) are fixedly connected to the lower end of the conveying plate (208), and an inlet pipe (204) is fixedly connected to the upper end of the conveying box (201).

3. The ammonia-containing tail gas treatment device as described in claim 1, characterized in that: The mobile conveying mechanism (6) includes a bidirectional motor (601), and a threaded rod (602) is fixedly connected to the right output end of the bidirectional motor (601). The right side of the threaded rod (602) is rotatably connected to the inside right side of the processing box (101). A slide block (603) is threadedly connected to the outer end of the threaded rod (602). A slide rod (604) is fixedly connected to the inner wall of the processing box (101). The slide block (603) and the slide rod (604) are slidably connected.

4. The ammonia-containing tail gas treatment device as described in claim 3, characterized in that: A connecting rod (210) is fixedly connected to the upper end of the slide block (603), and a cleaning brush (211) is fixedly connected to the upper end of the connecting rod (210). The upper end of the cleaning brush (211) abuts against the lower end of the activated carbon mesh (102). A slider (7) is slidably connected to the outer end of the slide rod (604), and a return spring (8) is fixedly connected to the outer end of the slider (7). The return spring (8) is slidably connected to the outer end of the slide rod (604), and the end of the return spring (8) away from the slider (7) is fixedly connected to the inner wall of the processing box (101).

5. The ammonia-containing tail gas treatment device as described in claim 3, characterized in that: The left output end of the bidirectional motor (601) is fixedly connected to a pulley mechanism (11). The lower output end of the pulley mechanism (11) is fixedly connected to a rotating rod. The right side of the rotating rod passes through the processing box (101) and is fixedly connected to a cam (17). The left side of the rotating rod is fixedly connected to a pulley mechanism (12). The lower right end of the pulley mechanism (12) is fixedly connected to a rotating rod (13). The outer end of the rotating rod (13) located inside the processing box (101) is fixedly connected to multiple sets of stirring blades (16). The right side of the rotating rod (13) is rotatably connected to the right side of the inside of the processing box (101).

6. The ammonia-containing tail gas treatment device as described in claim 2, characterized in that: The recycling and filtration mechanism (5) includes a recycling frame (501), a sliding plate (502) is fixedly connected to the upper end of the inner wall of the recycling frame (501), a filter frame (503) is slidably connected to the upper end of the sliding plate (502), an inclined plate (504) is fixedly connected to the bottom inside of the recycling frame (501), a recycling conveying pipe (2) is fixedly connected to the lower right side of the recycling frame (501), a recycling pump (9) is fixedly connected to the left side of the recycling fixed pipe (2), a recycling conveying pipe (10) is fixedly connected to the right side of the recycling pump (9), the movement of the recycling conveying pipe (10) away from the recycling pump (9) is fixedly connected to the upper end of the conveying box (201), and the left side of the recycling pump (9) is fixedly connected to the outer right side of the processing box (101).

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