Industrial incinerator waste gas treatment device

Abstract

The present invention relates to the technical field of waste gas treatment, and specifically discloses a waste gas treatment device for an industrial incinerator, including a filter outer cylinder, a spray inner cylinder fixedly installed inside the filter outer cylinder, a medium pipe fixedly installed inside the spray inner cylinder, a plurality of atomizing nozzles located in the spray inner cylinder installed on the medium pipe, and a return pipe connected to the upper outlet of the spray inner cylinder, and the lower outlet end of the return pipe is connected to the lower part of the filter outer cylinder. The waste gas treatment device of the present invention includes multiple processing steps of cooling, washing, wet dust removal, particle filtration and activated carbon adsorption, and each mechanism is uniformly integrated inside the filter outer cylinder, which occupies a smaller area than traditional equipment, and the filter screen can be uniformly cleaned. The multi-stage filter screen design effectively filters a wide range of particulate matter and reduces the pressure of a single filter screen. The guide frame structure enables the waste gas flow path to be switched instantly, and different types of incineration waste can be flexibly handled by adjusting the upper and lower positions of the guide plate.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, and in particular to a waste gas treatment device for an industrial incinerator. Background Art

[0002] Industrial waste gas refers to the gas emitted during the industrial production process, mainly from combustion, chemical reactions and material processing. Common components include carbon dioxide, carbon monoxide, nitrogen oxides, sulfur oxides and volatile organic compounds. These waste gases cause harm to the environment and human health, such as air pollution, ecological damage and respiratory and cardiovascular diseases. In order to reduce their impact, pollution control technology, promotion of clean production and formulation of relevant laws and regulations are usually adopted. In particular, incinerator waste gas, mainly from garbage incineration, industrial waste incineration and biomass incineration, usually contains fly ash, heavy metal particles, smoke and other particles and particulate pollutants.

[0003] The emission of industrial waste gas involves waste gas treatment. However, traditional waste treatment equipment has not been able to fully optimize the internal space design, resulting in a large footprint and inconvenient installation and maintenance. Traditional devices lack effective structural design in filter cleaning, resulting in difficulty in cleaning waste debris. The use of a single filter design leads to high filtration pressure and low filtration efficiency. There is a lack of flexibility in adjusting the waste gas flow path, and it is impossible to adjust the treatment method in time according to the different types of incinerated waste, resulting in a waste of time and resources. Therefore, the present invention proposes an industrial incinerator waste gas treatment device to solve the problems mentioned in the above background technology. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an industrial incinerator waste gas treatment device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An industrial incinerator waste gas treatment device comprises a filter outer cylinder, a spray inner cylinder is fixedly installed inside the filter outer cylinder, a medium pipe is fixedly installed inside the spray inner cylinder, a plurality of atomizing nozzles located in the spray inner cylinder are installed on the medium pipe, an outlet at the upper end of the spray inner cylinder is connected to a return pipe, an outlet end below the return pipe is connected to the lower part of the filter outer cylinder, an inlet pipe is installed at the inlet at the lower end of the spray inner cylinder, and a drainage pipe connected to the spray inner cylinder is installed at the lower side of the filter outer cylinder;

[0007] A number of guide frames are installed between the outside of the spray inner cylinder and the filter outer cylinder, guide plates are arranged on the left and right sides of the guide frames, the guide plates slide back and forth between the guide frames, a filter screen is installed on the lower side of the guide frame, a rotating shaft is rotatably connected to the lower side of the filter outer cylinder, a number of curved scrapers corresponding to the filter screen are fixedly installed on the circumference of the rotating shaft, filter cartridge seats are arranged on the left and right upper sides of the filter outer cylinder, and an activated carbon filter element is installed on the filter cartridge seat.

[0008] Preferably, the guide frame is composed of two annular plates of the same size, and bayonet holes are provided on the left and right upper sides of the annular plates.

[0009] Preferably, a second opening is provided on the lower side of the annular plate below the guide frame, and the second opening is located on the lower side of the filter screen, and a one-way valve plate three is installed inside the second opening.

[0010] Preferably, the side surface of the filter is arc-shaped, an arc-shaped groove corresponding to the filter is opened on the lower side of the filter outer cylinder, a closing plate fitting the arc-shaped groove on the lower side of the filter outer cylinder is fixed on the inner side of the arc scraper, and the outer diameter of the arc scraper is less than or equal to the inner diameter of the filter, and a motor connected to a rotating shaft is installed on the filter outer cylinder.

[0011] Preferably, a plurality of partitions are installed inside the filter cartridge seat, and a plurality of slots corresponding to the bayonet are provided on the partitions and the lower side of the filter cartridge seat, and the partitions correspond to the lower side annular plate positions of a plurality of flow guide frames.

[0012] Preferably, the guide frame is provided with slide grooves corresponding to the guide plates on both sides, and the two annular plates of the guide frame are provided with openings on both sides, and the openings are located at the lower side of the guide plates.

[0013] Preferably, a plurality of baffles corresponding to the first opening are fixed to the lower side of the guide plate, a one-way valve plate 1 is arranged between the two baffles in the guide frame, and a one-way valve plate 2 is arranged between the two baffles of the upper and lower guide frames.

[0014] Preferably, the guide plate is provided with a plurality of valve openings corresponding to one-way valve plate one and one-way valve plate two, and the lower annular plates of the guide frame are fixed with limit blocks located on the upper side of the guide plate on the left and right sides, the limit blocks correspond to one-way valve plate two, and the front side of the guide plate is connected with a limit pin.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The exhaust gas treatment device designed by the present invention includes cooling, washing, wet dust removal, filtering of particulate pollutants and activated carbon adsorption of exhaust gas, which basically covers the whole treatment process of exhaust gas particulate pollutants in this field. The above mechanisms are uniformly integrated inside the filter outer cylinder, which effectively utilizes the internal space of the filter outer cylinder. The internal space distribution design is reasonable, and the occupied area is smaller than that of traditional equipment;

[0017] 2. The filter cartridge seat structure on both sides of the present invention cooperates with the backflow exhaust gas treatment, which can be easily loaded and unloaded, and the internal filter element can be replaced. The filter screen on the lower side of the filtering structure cooperates with a plurality of arc scraper structures on the rotating shaft, which can facilitate the unified cleaning of the filter screen. The cleaned waste is directly discharged to the equipment housing. Multiple filter screens with increasing filter diameters are set up, which can effectively cover the filtration of particulate pollutants in a large range and reduce the filtering pressure of a single filter screen;

[0018] 3. The guide frame structure provided between the filter outer cylinder and the spray washing inner cylinder of the present invention can facilitate instant switching of the exhaust gas flow path by adjusting the upper and lower positions of the guide plate. Depending on the type of incineration waste, it can be considered whether it has passed through the process of upper activated carbon adsorption, that is, targeted exhaust gas treatment can be carried out, unnecessary steps and time can be saved, and the efficiency of exhaust gas treatment is greatly improved.

[0019] In summary, the exhaust gas treatment device of the present invention includes multiple treatment steps such as cooling, washing, wet dust removal, particle filtration and activated carbon adsorption. Various mechanisms are integrated into the inner part of the filter outer cylinder, and the internal space is reasonably utilized. Compared with traditional equipment, the footprint is smaller, and the filter can be cleaned uniformly. The multi-stage filter design effectively filters a wide range of particulate matter and reduces the pressure of a single filter. The guide frame structure enables the exhaust gas flow path to be switched instantly. By adjusting the upper and lower positions of the guide plates, different types of incineration waste can be flexibly handled, thereby achieving targeted exhaust gas treatment and saving time and resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of an industrial incinerator waste gas treatment device proposed by the present invention Figure 1 ;

[0021] Figure 2 A schematic diagram of the structure of an industrial incinerator waste gas treatment device proposed by the present invention Figure 2 ;

[0022] Figure 3 A schematic diagram of the structure of an industrial incinerator waste gas treatment device proposed by the present invention Figure 3 ;

[0023] Figure 4 This is a schematic side cross-sectional view of an industrial incinerator waste gas treatment device proposed by the present invention;

[0024] Figure 5 A schematic cross-sectional view of an industrial incinerator waste gas treatment device proposed by the present invention Figure 1 ;

[0025] Figure 6 A schematic cross-sectional view of an industrial incinerator waste gas treatment device proposed by the present invention Figure 2;

[0026] Figure 7 A schematic cross-sectional view of an industrial incinerator waste gas treatment device proposed by the present invention Figure 3 ;

[0027] Figure 8 This is a front cross-sectional structural schematic diagram of an industrial incinerator waste gas treatment device proposed by the present invention.

[0028] In the figure: 1. Filter outer cylinder; 2. Spray-wash inner cylinder; 3. Return pipe; 4. Drain pipe; 5. Curved scraper; 6. Filter cartridge seat; 7. Inlet pipe; 8. Guide frame; 9. Activated carbon filter element; 10. Slot; 11. Medium pipe; 12. Baffle; 13. Limit pin; 14. Motor; 15. Rotating shaft; 16. Atomizing nozzle; 17. Guide plate; 18. One-way valve plate 1; 19. One-way valve plate 2; 20. Limit block; 21. Port 1; 22. Port 2; 23. One-way valve plate 3; 24. Filter screen; 25. Bayonet. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figure 1-8 , an industrial incinerator waste gas treatment device comprises a filter outer cylinder 1, a spray inner cylinder 2 is fixedly installed inside the filter outer cylinder 1, a medium pipe 11 is fixedly installed inside the spray inner cylinder 2, a plurality of atomizing nozzles 16 located in the spray inner cylinder 2 are installed on the medium pipe 11, an outlet at the upper end of the spray inner cylinder 2 is connected to a return pipe 3, and the outlet end below the return pipe 3 is connected to the lower part of the filter outer cylinder 1, an inlet pipe 7 is installed at the inlet of the lower end of the spray inner cylinder 2, and a drainage pipe 4 connected to the spray inner cylinder 2 is installed on the lower side of the filter outer cylinder 1, waste gas is introduced into the spray inner cylinder 2 through the inlet pipe 7, and water or chemical solution is introduced into the medium pipe 11, and sprayed into the spray inner cylinder 2 through the atomizing nozzle 16, the water can perform preliminary cleaning and further cooling of the waste gas, the specific chemical solution reacts with the waste gas to separate the pollutants in the waste gas, the treated water after the spray reaction is discharged through the drainage pipe 4, and the waste gas treated by the medium spray flows back to the bottom of the filter outer cylinder 1 through the return pipe 3;

[0031] Furthermore, referring to Figure 3 , 6A plurality of guide frames 8 are installed between the outside of the spray inner cylinder 2 and the filter outer cylinder 1. The guide frames 8 are composed of two annular plates of the same size. Guide plates 17 are arranged on the left and right sides of the guide frames 8. The guide plates 17 slide back and forth between the plurality of guide frames 8. A filter screen 24 is installed on the lower side of the guide frames 8. Filter cartridge seats 6 are arranged on the left and right upper sides of the filter outer cylinder 1. The filter cartridge seats 6 are installed with activated carbon filter elements 9. Bayonet ports 25 are provided on the left and right upper sides of the annular plates. A plurality of partitions are installed inside the filter cartridge seats 6. The partitions are arranged with A plurality of slots 10 corresponding to the bayonet 25 are provided on the lower side of the filter cartridge seat 6. The structure of the filter cartridge seat 6 can be conveniently loaded and unloaded, and the activated carbon filter element 9 inside the filter cartridge seat 6 can be replaced. The filter cartridge seat 6 and the slots 10 on the lower side of the partition can be matched to the annular plate bayonet 25 of the guide frame 8. The exhaust gas below the inner part of the filter outer cylinder 1 is passed through the return pipe 3, and the particulate pollutants are filtered through the filter screen 24, and specific pollutants (such as volatile organic compounds VOCs) are adsorbed through the activated carbon filter element 9;

[0032] Furthermore, referring to Figure 5-7 A second opening 22 is provided on the lower side of the annular plate below the guide frame 8, and the second opening 22 is located on the lower side of the filter screen 24, and a check valve plate 3 23 is installed inside the second opening 22, and the check valve plate 3 23 is opened to one side of the filter screen 24, and the left and right sides of the guide frame 8 are provided with a chute corresponding to the guide plate 17, and the left and right sides of the two annular plates of the guide frame 8 are provided with a first opening 21, and the first opening 21 is located on the lower side of the guide plate 17, and the lower side annular plate of the lowest guide frame 8 does not have a first opening 21, and a plurality of baffles 12 corresponding to the first opening 21 are fixed to the lower side of the guide plate 17 A one-way valve plate 18 is provided between the two baffles 12 in the guide frame 8, and a one-way valve plate 2 19 is provided between the two baffles 12 of the upper and lower guide frames 8. A plurality of valve ports corresponding to the one-way valve plate 18 and the one-way valve plate 2 19 are provided in the guide plate 17, and the lower annular plate of the guide frame 8 is fixed with limit blocks 20 located on the upper side of the guide plate 17 on both sides, the limit blocks 20 correspond to the one-way valve plate 2 19, and the front side of the guide plate 17 is connected with the limit pin 13, the one-way valve plate 18 opens to the lower side of the guide plate 17, and the one-way valve plate 2 19 opens to the upper side of the guide plate 17;

[0033] Furthermore, referring to Figure 5Under normal conditions, the treatment of industrial waste gas generally involves an adsorption process. At this time, the lower side of the guide plate 17 has several baffles 12 located in the corresponding opening 1 21 of the guide frame 8. There is no possibility of flow between the upper and lower guide frames 8 on the lower side of the guide plate 17. It must pass through the path of the upper filter cartridge seat 6 to enter the next guide frame 8. The above-mentioned waste gas refluxed into the filter outer cylinder 1 first enters the guide frame 8 through the lower side opening 22 of the lowest guide frame 8, and is filtered through the filter screen 24 for particulate pollutants, and then passes through the activated carbon filter element 9 to enter the area between the upper and lower guide frames 8. The inner partition of the filter cartridge seat 6 corresponds to the lower side annular plates of several guide frames 8. Position, the setting of the partition can prevent the exhaust gas from directly entering the inner area of ​​the next guide frame 8. At this time, the exhaust gas passes through the valve port of the one-way valve plate 18 and enters the lower area of ​​the guide plate 17, and then squeezes and opens the one-way valve plate 3 23, enters the lower side of the next guide frame 8 through the through port 22, and again passes through the filter screen 24 to filter the particles. The filter screen 24 can be set to reduce the filter hole diameter from bottom to top, which can not only cover and block particles of different sizes, but also perform graded filtration, reduce the filtration pressure of a single filter screen 24, and reciprocate in sequence to perform the active adsorption and particle filtration process after the spray exhaust gas, and finally discharge the completely purified gas through the through port at the upper end of the filter cartridge seat 6;

[0034] Furthermore, referring to Figure 6 , and some exhaust gases do not contain the adsorption treatment process of specific pollutants. Therefore, in order to improve the fly-off treatment efficiency, the activated carbon adsorption process can be skipped. The specific operation is to pull open the limit pin 13, and the guide plates 17 on both sides move down. At this time, some baffles 12 close the left and right openings 21 of the annular plate on the lower side of the guide frame 8, while other baffles 12 are located between the upper and lower guide frames 8 and do not play any role. At this time, the multiple one-way valve plates 19 on the upper side of the guide plate 17 are also restricted to the lower side of the corresponding limit block 20. At this time, the gas cannot pass through the one-way valve plate 19 The valve port enters the upper layer of the guide plate 17, and the gas cannot pass through the valve port of the one-way valve plate 18 from the lower side of the guide plate 17. Therefore, at this time, the return exhaust gas can only circulate on the lower side of the guide plates 17 on both sides of the filter outer cylinder 1. The gas passes through the filter screens 24 with different filter diameters in turn, and passes through the upper annular plate port 21 of the opened guide frame 8. It can directly enter the lower layer of the next guide frame 8, that is, the lower side of the filter screen 24, to filter the particulate pollutants one by one. Finally, the purified gas is directly discharged through the upper port 21 of the uppermost guide frame 8.

[0035] Furthermore, referring to Figure 2 , 48. The lower side of the filter outer cylinder 1 is rotatably connected with a rotating shaft 15, and a plurality of arc scrapers 5 corresponding to the filter screen 24 are fixedly installed around the rotating shaft 15. The guide plates 17 on both sides of the guide frame 8 slide downward, and the side of the filter screen 24 is in an arc shape. An arc groove corresponding to the filter screen 24 is opened on the lower side of the filter outer cylinder 1. A closing plate that fits the arc groove on the lower side of the filter outer cylinder 1 is fixed on the inner side of the arc scraper 5, and the outer diameter of the arc scraper 5 is less than or equal to the inner diameter of the filter screen 24, and a connecting rotating shaft 1 is installed on the filter outer cylinder 1. The motor 14 of 5 can be used to clean the multiple filters 24 on the lower side of the device after it has been used for a period of time. The lower motor 14 is started, and the motor 14 drives the arc scraper 5 installed thereon to rotate through the rotating shaft 15. In the process of rotating through the lower side of the upper filter 24, the particles adhering to the surface of the filter 24 are cleaned to maintain a long-lasting and good filtering effect of the device. The closing plate fixed on the rotating shaft 15 keeps the lower side of the filter outer cylinder 1 closed when the cleaning mechanism stops working.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An industrial incinerator waste gas treatment device, comprising a filter outer cylinder, characterized in that: A spraying inner cylinder is fixedly installed inside the filter outer cylinder, a medium pipe is fixedly installed inside the spraying inner cylinder, a plurality of atomizing nozzles located in the spraying inner cylinder are installed on the medium pipe, the outlet at the upper end of the spraying inner cylinder is connected to a return pipe, the outlet end below the return pipe is connected to the lower part of the filter outer cylinder, an inlet pipe is installed at the inlet at the lower end of the spraying inner cylinder, and a drainage pipe connected to the spraying inner cylinder is installed at the lower side of the filter outer cylinder; A number of guide frames are installed between the outside of the spray inner cylinder and the filter outer cylinder, guide plates are arranged on the left and right sides of the guide frames, the guide plates slide forward and backward between the guide frames, a filter screen is installed on the lower side of the guide frame, a rotating shaft is rotatably connected to the lower side of the filter outer cylinder, a number of arc scrapers corresponding to the filter screen are fixedly installed on the circumference of the rotating shaft, filter cartridge seats are arranged on the left and right upper sides of the filter outer cylinder, an activated carbon filter element is installed on the filter cartridge seat; the side surface of the filter screen is arc-shaped, an arc groove corresponding to the filter screen is opened on the lower side of the filter outer cylinder, and a closing plate fitting the arc groove on the lower side of the filter outer cylinder is fixed on the inner side of the arc scraper.

2. The industrial incinerator waste gas treatment device according to claim 1, characterized in that: The guide frame is composed of two annular plates of the same size, and bayonet holes are provided on the left and right upper sides of the annular plates.

3. The industrial incinerator waste gas treatment device according to claim 1, characterized in that: A second opening is provided on the lower side of the annular plate below the guide frame, and the second opening is located on the lower side of the filter screen, and a one-way valve plate three is installed inside the second opening.

4. The industrial incinerator waste gas treatment device according to claim 1, characterized in that: The outer diameter of the arc scraper is smaller than or equal to the inner diameter of the filter screen, and a motor connected to a rotating shaft is installed on the filter outer cylinder.

5. The industrial incinerator waste gas treatment device according to claim 1, characterized in that: A plurality of partitions are installed inside the filter cartridge seat, and a plurality of slots corresponding to the bayonet are provided on the partitions and the lower side of the filter cartridge seat, and the partitions correspond to the lower side annular plate positions of a plurality of flow guide frames.

6. The industrial incinerator waste gas treatment device according to claim 1, characterized in that: The guide frame is provided with sliding grooves corresponding to the guide plates on both sides, and the two annular plates of the guide frame are provided with openings on both sides, and the openings are located at the lower side of the guide plates.

7. The industrial incinerator waste gas treatment device according to claim 1, characterized in that: A plurality of baffles corresponding to the first opening are fixed on the lower side of the guide plate, a one-way valve plate 1 is arranged between the two baffles in the guide frame, and a one-way valve plate 2 is arranged between the two baffles of the upper and lower guide frames.

8. The industrial incinerator waste gas treatment device according to claim 1, characterized in that: The guide plate is provided with a plurality of valve openings corresponding to the one-way valve plate 1 and the one-way valve plate 2, and the lower annular plates of the guide frame are fixed with limit blocks located on the upper side of the guide plate on the left and right sides, the limit blocks correspond to the one-way valve plate 2, and the front side of the guide plate is connected with a limit pin.

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