Zeolite runner RTO waste gas treatment device

Abstract

The utility model discloses a zeolite runner RTO waste gas treatment device, which relates to the field of waste gas treatment and comprises a pretreatment device I, a pretreatment device II, an emergency activated carbon box I, an emergency activated carbon box II, a zeolite runner device I, a zeolite runner device II, a flue gas heat exchange device and an RTO device, the first emergency activated carbon box is connected with one end of a first adsorption fan through a first emergency branch pipe, the second emergency activated carbon box is connected with one end of a second adsorption fan through a second emergency branch pipe, the RTO device is connected with a purging fan, and a third pretreatment device is arranged at the front end of the purging fan. According to the RTO device, the stability of large-air-volume low-concentration waste gas treatment is improved, by arranging the emergency activated carbon box, when equipment breaks down, waste gas can be led into the emergency activated carbon box to be treated and then discharged, the use safety and stability of the equipment are guaranteed, by arranging the purging fan, sufficient combustion of the waste gas in the RTO device is achieved, and the waste gas treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air pollution control, in particular to a zeolite rotor RTO waste gas treatment device. Background Art

[0002] At present, industrial VOCs treatment methods are becoming more and more mature, and deep treatment has become the mainstream treatment method. Among them, the zeolite rotor + RTO waste gas treatment method is one of the deep treatment methods. However, in the actual application process, due to changes in production conditions, the company's VOCs emissions and concentrations will change to a certain extent. When treating large air volumes and low-concentration waste gases, the zeolite rotor + RTO waste gas treatment has poor stability and will generate some unnecessary energy consumption. The maintenance cost of the zeolite rotor is high, the emergency system in the whole device is not perfect, and the desorbed waste gas is easily retained in the RTO device, resulting in incomplete combustion. Summary of the invention

[0003] The purpose of the utility model is to provide a zeolite wheel RTO waste gas treatment device to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A zeolite rotor RTO waste gas treatment device, characterized in that it comprises a pretreatment device 1, a pretreatment device 2, an emergency activated carbon box 1, an emergency activated carbon box 2, a zeolite rotor device 1, a zeolite rotor device 2, a flue gas heat exchange device and an RTO device, the waste gas inlet is respectively connected to the pretreatment device 1, the pretreatment device 2, the emergency activated carbon box 1 and the emergency activated carbon box 2, the zeolite rotor adsorption device 1 is provided with an adsorption zone 1, a desorption zone 1 and a cooling zone 1, the zeolite rotor adsorption device 2 is provided with an adsorption zone 2, Desorption zone two and cooling zone two, the pretreatment device one is connected to one end of the adsorption zone one through an adsorption pipe one, the pretreatment device two is connected to one end of the adsorption zone two through an adsorption pipe two, the other end of the adsorption zone one is connected to an exhaust pipe one, an adsorption fan one is provided on the exhaust pipe one, the other end of the adsorption zone two is connected to an exhaust pipe two, an adsorption fan two is provided on the exhaust pipe two, the exhaust pipe one and the exhaust pipe two are connected to a chimney after merging, the adsorption pipe one is provided with a cooling branch pipe one, the cooling branch pipe one is connected The cooling zone one has one end, and the other end of the cooling zone one is connected to the cooling branch pipe two. The adsorption pipeline two is provided with a cooling branch pipe three, and the cooling branch pipe three is connected to one end of the cooling zone two, and the other end of the cooling zone two is connected to the cooling branch pipe four. After the cooling branch pipes two and four are merged, they are connected to one end of the flue gas heat exchange device, and the other end of the flue gas heat exchange device is connected to the desorption pipeline, and the desorption pipeline is respectively connected to one end of the desorption zone one and the desorption zone two, and the other end of the desorption zone one is connected to the desorption branch pipe one. The other end of the second is connected to the desorption branch pipe two, the desorption branch pipe one is provided with a desorption fan one, the desorption branch pipe two is provided with a desorption fan two, the desorption branch pipe one and the desorption branch pipe two are merged and connected to one end of the RTO fan, the other end of the RTO fan is connected to the RTO device, the RTO device is connected to the chimney through a clean gas exhaust pipeline, the emergency activated carbon box one is connected to one end of the adsorption fan one through the emergency branch pipe one, and the emergency activated carbon box two is connected to one end of the adsorption fan two through the emergency branch pipe two.

[0006] Furthermore, the RTO device is connected to a purge fan, and a pretreatment device three is arranged at the front end of the purge fan.

[0007] Furthermore, the zeolite filling in the zeolite wheel device 1 and the zeolite wheel device 2 is modular filling.

[0008] The beneficial effects of the utility model are as follows: by setting up two independent zeolite rotor devices, the stability of large-volume and low-concentration waste gas treatment is improved; according to changes in production conditions, by valve control, any zeolite rotor device can be selected to be opened or closed, so as to achieve the purpose of energy saving and consumption reduction; modular zeolite filling, when a local failure occurs in the zeolite rotor device, the local zeolite module can be replaced, and the replacement is convenient and the replacement and maintenance costs are reduced; by setting up an emergency activated carbon box, when the equipment fails, the waste gas can be led to the emergency activated carbon box for treatment and then discharged, thus ensuring the safety and stability of the equipment; by setting up a purge fan, the waste gas in the RTO device is guaranteed to be fully burned, thereby improving the waste gas treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model.

[0010] In the figure: 1. Pretreatment device 1; 2. Pretreatment device 2; 3. Emergency activated carbon box 1; 4. Emergency activated carbon box 2; 5. Waste gas inlet; 6. Adsorption pipeline 1; 7. Adsorption pipeline 2; 8. Zeolite wheel adsorption device 1; 9. Zeolite wheel device 2; 10. Adsorption zone 1; 11. Desorption zone 1; 12. Cooling zone 1; 13. Adsorption zone 2; 14. Desorption zone 2; 15. Cooling zone 2; 16. Exhaust duct 1; 17. Adsorption fan 1; 18. Exhaust duct 2; 19. Adsorption fan 2; 20. Chimney; 21. Cooling branch pipe 1; 22. Cooling branch pipe 2; 23. Cooling branch pipe 3; 24. Cooling branch pipe 4; 25. Flue gas heat exchange device; 26. Desorption pipeline; 27. Desorption branch pipe 1; 28. Desorption branch pipe 2; 29. ​​Desorption fan 1; 30. Desorption fan 2;

[0011] 31. RTO fan; 32. Clean gas exhaust pipeline; 33. Emergency branch pipe 1; 34. Emergency branch pipe 2; 35. Purge fan; 36. RTO device; 37. Pretreatment device 3. Implementation

[0012] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0013] like Figure 1As shown, the utility model provides a technical solution: including a pretreatment device 1, a pretreatment device 2, an emergency activated carbon box 3, an emergency activated carbon box 4, a zeolite wheel 8, a zeolite wheel 9, a flue gas heat exchange device 25 and an RTO device 36, the exhaust gas inlet 5 is respectively connected to the pretreatment device 1, the pretreatment device 2, the emergency activated carbon box 3 and the emergency activated carbon box 4, the zeolite wheel device 8 is provided with an adsorption zone 10, a desorption zone 11 and a cooling zone 12, the zeolite wheel device 29 is provided with an adsorption zone 2 13, a desorption zone 2 14 and a cooling zone 2 15, the pretreatment The pretreatment device 1 is connected to one end of the adsorption zone 10 through an adsorption pipe 6, the pretreatment device 2 is connected to one end of the adsorption zone 13 through an adsorption pipe 7, the other end of the adsorption zone 10 is connected to an exhaust pipe 16, and an adsorption fan 17 is provided on the exhaust pipe 16. The other end of the adsorption zone 13 is connected to an exhaust pipe 18, and an adsorption fan 19 is provided on the exhaust pipe 18. The exhaust pipe 16 and the exhaust pipe 18 are connected to a chimney 20 after merging. The adsorption pipe 6 is provided with a cooling branch pipe 21, and the cooling branch pipe 21 is connected to one end of the cooling zone 12. The other end of the cooling zone 12 is connected to the cooling branch pipe 22, the adsorption pipe 27 is provided with a cooling branch pipe 3 23, the cooling branch pipe 3 23 is connected to one end of the cooling zone 2 15, the other end of the cooling zone 2 15 is connected to the cooling branch pipe 4 24, the cooling branch pipe 22 and the cooling branch pipe 4 24 are connected to one end of the flue gas heat exchange device 25 after merging, the other end of the flue gas heat exchange device 25 is connected to the desorption pipe 26, the desorption pipe 26 is respectively connected to one end of the desorption zone 1 11 and the desorption zone 2 14, the other end of the desorption zone 1 11 is connected to the desorption branch pipe 1 27, the other end of the desorption zone 2 14 is connected The desorption branch pipe 28 is connected, and a desorption fan 29 is provided on the desorption branch pipe 27. A desorption fan 30 is provided on the desorption branch pipe 28. The desorption branch pipe 27 and the desorption branch pipe 28 are connected to one end of the RTO fan 31 after merging. The other end of the RTO fan 31 is connected to the RTO device 36. The RTO device 36 is connected to the chimney 20 through a clean gas exhaust pipe 32. The emergency activated carbon box 3 is connected to one end of the adsorption fan 17 through an emergency branch pipe 33. The emergency activated carbon box 4 is connected to one end of the adsorption fan 19 through an emergency branch pipe 34.

[0014] Furthermore, the RTO device 36 is connected to the purge fan 35 , and a pretreatment device 3 37 is provided at the front end of the purge fan 35 .

[0015] Furthermore, the zeolite filling in the zeolite wheel device 1 8 and the zeolite wheel device 2 9 are both modular filling.

[0016] Specifically, when the utility model is used, the exhaust gas enters the pretreatment device 1 and the pretreatment device 2 through the exhaust gas inlet 5, the adsorption zone 10, desorption zone 11 and cooling zone 12 in the zeolite rotor device 8 and the adsorption zone 2 13, desorption zone 2 14 and cooling zone 2 15 in the zeolite rotor device 2 9 are fixed in position, the rotor rotates at a certain speed, most of the exhaust gas pretreated by the pretreatment device 1 enters the adsorption zone 10 in the zeolite rotor device 8 through the adsorption pipe 6, and most of the exhaust gas pretreated by the pretreatment device 2 enters the adsorption zone 2 13 in the zeolite rotor device 2 9 through the adsorption pipe 2 7, the exhaust gas purified by the adsorption zone 10 is discharged into the exhaust pipe 16 by the adsorption fan 17, and the exhaust gas purified by the adsorption zone 2 13 is discharged into the exhaust pipe 2 18 by the adsorption fan 2 19, and the exhaust gas in the exhaust pipe 16 and the exhaust pipe 2 18 are combined and discharged into the external environment through the chimney 20.Powered by the desorption fan 29, a small part of the waste gas pretreated by the pretreatment device 1 enters the cooling branch pipe 21, and then enters the cooling zone 12 in the zeolite wheel device 8. The waste gas from the cooling zone 12 is discharged into the cooling branch pipe 22. Powered by the desorption fan 230, a small part of the waste gas pretreated by the pretreatment device 22 enters the cooling branch pipe 3 23, and then enters the cooling zone 2 15 in the zeolite wheel device 29. The waste gas from the cooling zone 2 15 is discharged into the cooling branch pipe 4 24. The waste gas from the cooling branch pipe 3 23 and the cooling branch pipe 4 24 merges and enters The flue gas heat exchange device 25, after being heated in the flue gas heat exchange device 25, enters the desorption branch pipe 1 27 and the desorption branch pipe 2 28 respectively through the desorption pipe 26, the waste gas in the desorption branch pipe 1 27 is blown into the desorption zone 1 11 in the zeolite wheel device 1 8, and the waste gas in the desorption branch pipe 2 28 is blown into the desorption zone 2 14 in the zeolite wheel device 2 9, and the waste gas desorbed from the desorption zone 1 11 and the desorption zone 2 14 is merged, and the waste gas is powered by the RTO fan 31, and the waste gas is discharged into the RTO device 36, and the waste gas is fully burned in the RTO device 36 and discharged into the clean gas discharge pipeline 3 2, and finally discharged into the external environment through the chimney 20. When the equipment is in normal use, it can be controlled by the valve to choose to open or close the use of any one of the zeolite wheel device 1 8 and the zeolite wheel device 2 9 according to the changes in production conditions. When the equipment fails, the front-end valves of the pretreatment device 1 and the pretreatment device 2 2 can be automatically closed, and the front-end valves of the emergency activated carbon box 1 3 and the emergency activated carbon box 2 4 are automatically opened, and the exhaust gas inlet 5 is connected with the emergency activated carbon box 1 3 and the emergency activated carbon box 2 4, and the adsorption fan 1 17 and the adsorption fan 2 19 are respectively powered. The exhaust gas is purified by the emergency activated carbon box 1 3 and the emergency activated carbon box 2 4 and then discharged into the external environment through the chimney 20. The RTO device 36 is connected to the purge fan 35. A pretreatment device 3 37 is arranged at the front end of the purge fan 35. The air is filtered by the pretreatment device 37 and then blown into the RTO device 36 to make the residual exhaust gas in the RTO device fully burn and improve the exhaust gas combustion efficiency. The zeolite filling in the zeolite wheel device 1 8 and the zeolite wheel device 2 9 are both modular filling. When a local failure occurs, the local zeolite module can be replaced, which is convenient to replace and reduces the replacement and maintenance costs.

[0017] To sum up, with the help of the above-mentioned technical scheme of the utility model, by setting up two independent zeolite rotor devices, the stability of large-volume and low-concentration exhaust gas treatment is improved. According to changes in production conditions, through valve control, any zeolite rotor device can be selected to be opened or closed, so as to achieve the purpose of energy saving and consumption reduction. Modular zeolite filling, when a local failure occurs in the zeolite rotor device, the local zeolite module can be replaced, and the replacement is convenient and the replacement and maintenance costs are reduced. By setting up an emergency activated carbon box, when the equipment fails, the exhaust gas can be led to the emergency activated carbon box for treatment and then discharged, which ensures the safety and stability of the equipment. By setting up a purge fan, the exhaust gas in the RTO device is fully burned, which improves the exhaust gas treatment efficiency.

[0018] The above description is only a preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present utility model can make equivalent substitutions or changes based on the technical scheme and utility model concept of the present utility model, which should be covered by the protection scope of the present utility model.

Claims

1. A zeolite wheel RTO waste gas treatment device, characterized in that: The invention comprises a pretreatment device 1 (1), a pretreatment device 2 (2), an emergency activated carbon box 1 (3), an emergency activated carbon box 2 (4), a zeolite wheel device 1 (8), a zeolite wheel device 2 (9), a flue gas heat exchange device (25) and an RTO device (36), wherein the exhaust gas inlet (5) is connected to the pretreatment device 1 (1), the pretreatment device 2 (2), the emergency activated carbon box 1 (3) and the emergency activated carbon box 2 (4) respectively, the zeolite wheel device 1 (8) is provided with an adsorption zone 1 (10), a desorption zone 1 (11) and a cooling zone 1 (12), the zeolite wheel device 2 (9) is provided with an adsorption zone 2 (13), a desorption zone 2 (14) and a cooling zone 2 (15), and the pretreatment device 1 (1) is connected to the exhaust gas inlet (5) through the exhaust gas inlet (5) The adsorption pipe (6) is connected to one end of the adsorption zone (10), the pretreatment device (2) is connected to one end of the adsorption zone (13) via the adsorption pipe (7), the other end of the adsorption zone (10) is connected to the exhaust pipe (16), the exhaust pipe (16) is provided with an adsorption fan (17), the other end of the adsorption zone (13) is connected to the exhaust pipe (18), the exhaust pipe (18) is provided with an adsorption fan (19), the exhaust pipe (16) and the exhaust pipe (18) are connected to the chimney (20) after merging, the adsorption pipe (6) is provided with a cooling branch pipe (21), the cooling branch pipe (21) is connected to one end of the cooling zone (12), the cooling branch pipe (21) is connected to one end of the cooling zone (12), the cooling branch pipe (21) is connected to one end of the cooling zone (13 ...3), the cooling branch pipe (21) is connected to one end of the cooling zone (12), the cooling branch pipe (21) is connected to one end of the cooling zone (13), the cooling branch pipe (21) is connected to one end of the cooling zone (13), the cooling branch pipe (21) is connected to one end of the cooling zone (13), the cooling branch pipe (21) is connected to one end of the cooling zone (13), the cooling branch pipe (21) is connected to one end of the cooling zone The other end of the cooling zone 1 (12) is connected to the cooling branch pipe 2 (22), the adsorption pipe 2 (7) is provided with a cooling branch pipe 3 (23), the cooling branch pipe 3 (23) is connected to one end of the cooling zone 2 (15), the other end of the cooling zone 2 (15) is connected to the cooling branch pipe 4 (24), the cooling branch pipe 2 (22) and the cooling branch pipe 4 (24) are connected to one end of the flue gas heat exchange device (25) after merging, the other end of the flue gas heat exchange device (25) is connected to the desorption pipe (26), the desorption pipe (26) is respectively connected to one end of the desorption zone 1 (11) and the desorption zone 2 (14), the other end of the desorption zone 1 (11) is connected to the desorption branch pipe 1 (27), the other end of the desorption zone 2 (14) is connected A desorption branch pipe 2 (28), wherein the desorption branch pipe 1 (27) is provided with a desorption fan 1 (29), and the desorption branch pipe 2 (28) is provided with a desorption fan 2 (30). The desorption branch pipe 1 (27) and the desorption branch pipe 2 (28) are connected to one end of an RTO fan (31) after merging, and the other end of the RTO fan (31) is connected to the RTO device (36), and the RTO device (36) is connected to the chimney (20) through a clean gas exhaust pipeline (32). The emergency activated carbon box 1 (3) is connected to one end of the adsorption fan 1 (17) through an emergency branch pipe 1 (33), and the emergency activated carbon box 2 (4) is connected to one end of the adsorption fan 2 (19) through an emergency branch pipe 2 (34).

2. A zeolite wheel RTO waste gas treatment device according to claim 1, characterized in that: The RTO device (36) is connected to a purge fan (35), and a pre-treatment device 3 (37) is arranged at the front end of the purge fan (35).

3. A zeolite wheel RTO waste gas treatment device according to claim 1, characterized in that: The zeolite filling in the zeolite wheel device 1 (8) and the zeolite wheel device 2 (9) is modular filling.

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