Industrial organic waste gas treatment system

Abstract

The utility model relates to an industrial organic waste gas treatment system which comprises a powder spraying tank, a waste ton bag is connected to the lower side of the right end of the powder spraying tank, a dust remover is connected to the right side of the powder spraying tank, a first pneumatic switch butterfly valve is arranged on the side edge of the dust remover, and the dust remover is connected to the left side of a filter box through a second pneumatic switch butterfly valve. The upper end of the filter box is connected with a differential pressure sensor and a fresh air valve. According to the industrial organic waste gas treatment system disclosed by the utility model, the external heat exchange device for desorption of the zeolite rotating wheel is the plate type heat exchanger, and compared with an air mixing box and the plate type heat exchanger, the plate type heat exchanger has the advantages that two gases for heat exchange are not contacted, so that impurities of the gas for hot detection can be prevented from entering desorption gas to cause blockage or damage to zeolite; the adsorption and desorption efficiency is influenced.

Description

Technical Field

[0001] The utility model relates to the field of waste gas treatment systems, in particular to an industrial organic waste gas treatment system. Background Art

[0002] The problems with the current mainstream zeolite rotor + CO treatment process are: 1. There is a lot of oil smoke in the exhaust gas, and no pretreatment is done in the early stage, resulting in a shortened service life of the later rotor equipment. 2. The exhaust gas temperature entering the zeolite rotor is too high, exceeding the suitable temperature for the exhaust gas adsorption of the rotor, reducing the exhaust gas treatment efficiency of the rotor. 3. The mixing box used in the rotor desorption heat source is heated by RTO. The mixed desorption gas will be mixed with impurities, which will cause blockage or damage to the zeolite rotor, affecting the adsorption and desorption efficiency and reducing the service life of the zeolite rotor. 4. There is no concentration detection of the gas after desorption. Exceeding the treatment concentration of the catalytic furnace will cause the catalytic furnace to overheat and damage the catalytic furnace. 5. The adsorption fan is placed at the rear end of the rotor, and the air volume and pressure are not easy to control and adjust, resulting in a decrease in the process treatment efficiency. In order to solve the problems in the above system, a new system is designed to solve them. In summary, there is an urgent need for an industrial organic waste gas treatment system to solve the above problems. Utility Model Content

[0003] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an industrial organic waste gas treatment system, including a powder spray tank, a waste ton bag is connected to the lower right side of the powder spray tank, and a dust collector is connected to the right side of the powder spray tank, a first pneumatic switch butterfly valve is arranged on the side of the dust collector, and the dust collector is connected to the left side of the filter box through a second pneumatic switch butterfly valve, a pressure difference sensor and a fresh air valve are respectively connected to the upper end of the filter box, an adsorption fan is installed on the right side of the filter box, and the adsorption fan is connected to a zeolite rotor, and the zeolite rotor is respectively controlled by a first electric proportional adjustment butterfly valve and a second electric proportional adjustment butterfly valve. It is connected to a plate heat exchanger, an adsorption fan is connected to the top of the zeolite rotor, and a combustible gas analysis alarm is arranged on the right side of the adsorption fan, a flame arrester is arranged on the right side of the combustible gas analysis alarm, and a CO furnace is installed on the right side of the flame arrester, an explosion-proof plate is installed on the top of the CO furnace, a third electric proportional adjustment butterfly valve is connected to the right side of the CO furnace, a chimney is arranged on the right side of the third electric proportional adjustment butterfly valve, a fourth pneumatic switch butterfly valve is connected to the right side of the plate heat exchanger, and a fifth pneumatic switch butterfly valve is installed at the lower end between the plate heat exchanger and the fourth pneumatic switch butterfly valve.

[0004] Preferably, a third pneumatic switch butterfly valve is provided at the upper end of the flame arrester.

[0005] Preferably, a powder spray oil removal filter cartridge is provided in the powder spray tank to filter out oil mist and dust in the generated industrial waste gas.

[0006] Preferably, the external heat exchange device for zeolite wheel desorption is a plate heat exchanger.

[0007] Preferably, the dust collector is a bag filter type dust collector.

[0008] Preferably, the filter box adopts a dry filter box, and a surface cooler is added to the rear end of the filter box to reduce the temperature of the exhaust gas and control the temperature of the filtered gas within a range suitable for the operation of the zeolite wheel.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] In the utility model, 1. a powder spray oil removal filter cartridge or a bag filter is added before system pretreatment to filter out oil mist and dust in the generated industrial waste gas, thereby reducing the pressure on the zeolite wheel, extending the service life, and reducing the system operation cost.

[0011] 2. A surface cooler is added to the rear end of the dry filter box to reduce the exhaust gas temperature, control the temperature of the filtered gas within a range suitable for the operation of the zeolite wheel, and improve the adsorption efficiency of the zeolite wheel.

[0012] 3. The external heat exchange device for zeolite wheel desorption is a plate heat exchanger. Compared with the air mixing box, the advantage of the plate heat exchanger is that the two gases in heat exchange do not contact each other, so that impurities in the hot gas can be prevented from entering the desorption gas, causing blockage or damage to the zeolite and affecting the adsorption and desorption efficiency.

[0013] 4. Before the desorbed gas enters the catalytic furnace, a combustible gas alarm and flame arrester are installed on the pipeline. On the one hand, it prevents excessively high concentrations of gas from entering the catalytic furnace and causing explosion risks; on the other hand, in the event of an explosion in the catalytic furnace, it prevents the open flame from spreading to the front-end pipeline and equipment and causing greater damage.

[0014] 5. Place the adsorption fan after the filter box and before the zeolite wheel to ensure that the powder spray oil removal dust collector is always under negative pressure and to ensure the normal operation of the pretreatment equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the industrial organic waste gas treatment system of the utility model;

[0016] In the accompanying drawings: 1. powder spray can; 2. waste bag; 3. first pneumatic switch butterfly valve; 4. dust collector; 5. fresh air valve; 6. differential pressure sensor; 7. second pneumatic switch butterfly valve; 8. filter box; 9. adsorption fan; 10. zeolite wheel; 11. first electric proportional adjustment butterfly valve; 12. second electric proportional adjustment butterfly valve; 13. desorption fan; 14. combustible gas analysis alarm; 15. third pneumatic switch butterfly valve; 16. flame arrester; 17. CO furnace; 18. explosion venting disc; 19. third electric proportional adjustment butterfly valve; 20. plate heat exchanger; 21. fourth pneumatic switch butterfly valve; 22. fifth pneumatic switch butterfly valve; 23. chimney. DETAILED DESCRIPTION

[0017] 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 of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1 The utility model provides a technical solution: an industrial organic waste gas treatment system, comprising a powder spray tank 1, a waste ton bag 2 is connected to the lower right end of the powder spray tank 1, and a dust collector 4 is connected to the right side of the powder spray tank 1, a first pneumatic switch butterfly valve 3 is arranged on the side of the dust collector 4, and the dust collector 4 is connected to the left side of the filter box 8 through the second pneumatic switch butterfly valve 7, the upper end of the filter box 8 is respectively connected to a pressure difference sensor 6 and a fresh air valve 5, an adsorption fan 9 is installed on the right side of the filter box 8, and the adsorption fan 9 is connected to a zeolite rotor 10, and the zeolite rotor 10 is connected to a plate heat exchanger 20 through a first electric proportional adjustment butterfly valve 11 and a second electric proportional adjustment butterfly valve 12, An adsorption fan 13 is connected to the top of the zeolite rotor 10, and a combustible gas analysis alarm 14 is arranged on the right side of the adsorption fan 13, a flame arrester 16 is arranged on the right side of the combustible gas analysis alarm 14, and a CO furnace 17 is installed on the right side of the flame arrester 16, a bursting plate 18 is installed on the top of the CO furnace 17, a third electric proportional regulating butterfly valve 19 is connected to the right side of the CO furnace 17, a chimney 23 is arranged on the right side of the third electric proportional regulating butterfly valve 19, a fourth pneumatic switch butterfly valve 21 is connected to the right side of the plate heat exchanger 20, and a fifth pneumatic switch butterfly valve 22 is installed at the middle lower end of the plate heat exchanger 20 and the fourth pneumatic switch butterfly valve 21.

[0019] Wherein, a third pneumatic switch butterfly valve 15 is arranged at the upper end of the flame arrester 16 .

[0020] The powder spray tank 1 is provided with a powder spray oil removal filter cartridge to filter out the oil mist and dust of the generated industrial waste gas.

[0021] The external heat exchange device for desorption of the zeolite wheel 10 is a plate heat exchanger.

[0022] Among them, the dust collector 4 is a bag filter type dust collector.

[0023] The filter box 8 is a dry filter box, and a surface cooler is added to the rear end of the filter box 8 to reduce the temperature of the exhaust gas and control the temperature of the filtered gas within a range suitable for the operation of the zeolite wheel.

[0024] When the utility model is working, the front end pretreatment of the system adds a powder spray oil removal dust collector 4, the rear end of the dry filter 8 adds an exhaust gas cooling device, the desorption heat is taken by using a plate heat exchanger 20 instead of a mixed air box, and the front end of the processing device adds a flame arrester 16 to improve the safety performance of the system. The fan is placed at the front end of the runner, which makes it easier to ensure that the powder spray oil removal dust collector is negative pressure.

[0025] At the same time, it should be noted that a powder spray oil removal filter cartridge or a bag filter 4 is added before the system pretreatment to filter out the oil mist and dust of the industrial waste gas generated, reduce the pressure on the zeolite wheel 10, extend the service life, and reduce the system operation cost; a surface cooler is added to the rear end of the dry filter box 8 to reduce the waste gas temperature, control the temperature of the filtered gas within a range suitable for the operation of the zeolite wheel 10, and improve the adsorption efficiency of the zeolite wheel 10; the external heat exchange device for desorption of the zeolite wheel 10 is a plate heat exchanger 20. Compared with the mixing box, the advantage of the plate heat exchanger 20 is that the two gases in heat exchange do not enter the mixing box. Contact is carried out, so that impurities in the thermally measured gas can be prevented from entering the desorption gas, causing blockage or damage to the zeolite and affecting the adsorption and desorption efficiency; before the desorbed gas enters the catalytic furnace, a combustible gas analysis alarm 14 and a flame arrester 16 are installed on the pipeline to prevent excessively high concentrations of gas from entering the catalytic furnace and causing explosion risks; on the other hand, in the event of a deflagration accident in the catalytic furnace, prevent the open flame from spreading to the front-end pipeline and equipment to cause greater damage; the adsorption fan is placed after the filter box 8 and before the zeolite rotor 10 to ensure that the powder spray oil removal dust collector 4 is always at negative pressure to ensure the normal operation of the pretreatment equipment.

[0026] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An industrial organic waste gas treatment system, comprising a powder spray tank (1), characterized in that: A waste bag (2) is connected to the lower right side of the powder spray tank (1), and a dust collector (4) is connected to the right side of the powder spray tank (1). A first pneumatic switch butterfly valve (3) is arranged on the side of the dust collector (4), and the dust collector (4) is connected to the left side of the filter box (8) through a second pneumatic switch butterfly valve (7). A pressure difference sensor (6) and a fresh air valve (5) are respectively connected to the upper end of the filter box (8). An adsorption fan (9) is installed on the right side of the filter box (8), and the adsorption fan (9) is connected to a zeolite rotor (10). The zeolite rotor (10) is connected to a plate heat exchanger (20) through a first electric proportional adjustment butterfly valve (11) and a second electric proportional adjustment butterfly valve (12). The top end of the zeolite rotor (10) is connected to a A desorption fan (13), and a combustible gas analysis alarm (14) is arranged on the right side of the desorption fan (13), a flame arrester (16) is arranged on the right side of the combustible gas analysis alarm (14), and a CO furnace (17) is installed on the right side of the flame arrester (16), a bursting plate (18) is installed on the top of the CO furnace (17), a third electric proportional adjustment butterfly valve (19) is connected to the right side of the CO furnace (17), a chimney (23) is arranged on the right side of the third electric proportional adjustment butterfly valve (19), a fourth pneumatic switch butterfly valve (21) is connected to the right side of the plate heat exchanger (20), and a fifth pneumatic switch butterfly valve (22) is installed at the lower end between the plate heat exchanger (20) and the fourth pneumatic switch butterfly valve (21).

2. The industrial organic waste gas treatment system according to claim 1, characterized in that: A third pneumatic on / off butterfly valve (15) is provided at the upper end of the flame arrester (16).

3. The industrial organic waste gas treatment system according to claim 1, characterized in that: The powder spray tank (1) is provided with a powder spray oil removal filter cartridge to filter out oil mist and dust in the generated industrial waste gas.

4. The industrial organic waste gas treatment system according to claim 1, characterized in that: The external heat exchange device for desorption of the zeolite wheel (10) is a plate heat exchanger.

5. The industrial organic waste gas treatment system according to claim 1, characterized in that: The dust collector (4) is a bag filter type dust collector.

6. The industrial organic waste gas treatment system according to claim 1, characterized in that: The filter box (8) is a dry filter box, and a surface cooler is added to the rear end of the filter box (8) to reduce the temperature of the exhaust gas and control the temperature of the filtered gas to be within a range suitable for the operation of the zeolite wheel.

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