Waste gas purification device for sewage treatment plant

Abstract

The utility model belongs to the technical field of waste gas purification, and particularly relates to a waste gas purification device for a sewage treatment plant, which comprises a purification box body, the side wall of the purification box body is fixedly connected with an air suction fan; an air suction pipe is detachably mounted on the side wall of the air suction fan; the air suction pipe is communicated with the interior of the purification box body; a first fixing plate is fixedly connected to the middle of the air suction pipe. The end part of the first fixing plate is detachably and fixedly connected with a plurality of connecting cylinders through bolts; the multiple connecting cylinders are detachably and fixedly connected through bolts. A second fixing plate is detachably and fixedly connected to the end, away from the air suction pipe, of the connecting cylinder through a bolt; a first filter sheet is fixedly connected to the interior of each connecting cylinder; a second filter sheet is fixedly connected to the interior of the second fixing plate; by arranging the air suction fan, waste gas above the sewage treatment station can be actively sucked into the purification box body to be treated, and the influence of gathering of the waste gas above the sewage treatment station on the surrounding environment is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas purification technology, specifically a waste gas purification device for sewage treatment plants. Background Technology

[0002] As wastewater enters the collection network of the treatment plant, the agitation of the water flow and the decomposition of organic matter produce some odorous gases. The composition of wastewater exhaust gas is complex, usually containing a variety of volatile organic compounds and inorganic compounds (such as hydrogen sulfide and ammonia). These gases have a strong pungent odor, which not only causes foul odor pollution to the surrounding environment and affects the quality of life of residents, but also harms human health.

[0003] Wastewater and waste gas purification technology generally uses activated carbon adsorption. When wastewater and waste gas pass through the adsorption tower, organic pollutants and some inorganic pollutants in the waste gas are adsorbed by the huge specific surface area and rich microporous structure of activated carbon. The adsorption of activated carbon is a physical adsorption process, which mainly relies on the van der Waals forces between molecules. For example, volatile organic compounds such as benzene and toluene in wastewater and waste gas can be effectively adsorbed on the surface and in the micropores of activated carbon.

[0004] Existing wastewater and exhaust gas purification devices mostly use passive purification. Wastewater first undergoes various processes, and then exhaust gas gradually evaporates from the wastewater into the air. Finally, the exhaust gas enters the purification device through pipes. After a long period of accumulation, the exhaust gas becomes too concentrated, and some exhaust gas cannot enter the purification device through pipes in time, resulting in low purification efficiency.

[0005] Therefore, this utility model provides a waste gas purification device for sewage treatment plants. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A wastewater treatment plant exhaust gas purification device of this utility model includes a purification chamber; an air intake fan is fixedly connected to the side wall of the purification chamber; an air intake pipe is detachably installed on the side wall of the air intake fan; the air intake pipe is connected to the interior of the purification chamber; a first fixing plate is fixedly connected to the middle of the air intake pipe; multiple connecting cylinders are detachably fixed to the end of the first fixing plate by bolts; the multiple connecting cylinders are detachably fixed to each other by bolts; a second fixing plate is detachably fixed to the end of one connecting cylinder furthest from the air intake pipe by bolts; a first filter is fixedly connected inside each connecting cylinder; a second filter is fixedly connected inside the second fixing plate; the furthest... An exhaust pipe is fixed to the side wall of the suction pipe. By setting up a suction fan, the exhaust gas above the sewage treatment plant can be actively sucked into the purification chamber for treatment, reducing the impact of exhaust gas accumulation on the surrounding environment. The second filter can perform preliminary filtration of the exhaust gas sucked into the suction pipe, reducing the amount of particulate matter in the exhaust gas entering the suction pipe and reducing the impact of blockage. Since the second filter and the first filter are fixed to the middle of the first fixed plate by multiple bolts, they are easy to disassemble and replace when the adsorption filter becomes saturated due to long-term filtration. At the same time, the setting of multiple connecting cylinders can extend or shorten the length of the suction pipe as needed, which is convenient for installation and replacement and multiple filtration and purification of exhaust gas.

[0008] Preferably, a liquid storage box is fixedly connected to the top of the suction pipe; multiple liquid injection ports are fixedly connected to the top of the liquid storage box; multiple connecting pipes are fixedly connected to the bottom of the liquid storage box; multiple nozzles are fixedly connected to the ends of the connecting pipes; and multiple through holes are opened on the side wall of the nozzles. By setting up the liquid storage box, various different purification reaction liquids can be sprayed into the purification chamber according to different usage environments, so that they can fully neutralize the waste gas inside the purification chamber, reduce the harmful gas molecules, remove various odors and pollutants, and make the purification effect faster and more efficient.

[0009] Preferably, a plurality of third fixing plates are fixedly connected to the inner sidewall of the air intake pipe; the third fixing plates are evenly distributed on the top and bottom sides of the air intake pipe and are staggered. By setting multiple third fixing plates, when the exhaust gas enters the purification chamber, it is blocked by the regularly arranged third fixing plates, causing it to travel in the middle of the path formed by the arrangement of multiple third fixing plates, fully merging with the purification reaction liquid sprayed inside the purification chamber, decomposing the harmful gases inside, and improving the purification efficiency.

[0010] Preferably, multiple sets of heating rods are fixed to the side wall of the third fixed plate; each set of heating rods is evenly distributed on both sides of the third fixed plate. By setting multiple heating rods on both sides of the third fixed plate, when the exhaust gas is drawn into the purification chamber and travels along the route formed by the arrangement of multiple third fixed plates, the temperature inside the purification chamber is raised by heating, which accelerates the fusion reaction between the exhaust gas and the liquid sprayed on the top side of the purification chamber. This reduces the phenomenon that some exhaust gas is too slow to fuse and decompose with the liquid due to the influence of ambient temperature. At the same time, after raising the temperature inside the purification chamber, excess liquid is reduced to remain inside the purification chamber and on the surface of the third fixed plate, reducing the problem of bacterial growth.

[0011] Preferably, a telescopic tube is fixed to the side wall of the second fixing plate; the telescopic tube is set on the side wall of the pair of second fixing plates away from the first fixing plate. By setting the telescopic tube, its length can be adjusted according to the usage environment to adapt to different distances. At the same time, it can be compressed and retracted when not in use to reduce space occupation and facilitate storage and carrying.

[0012] Preferably, a flare is fixedly connected to the end of the telescopic tube; a sponge is fixedly connected to the inner wall of the flare. By setting the flare, the opening area when the exhaust gas is sucked in is increased, so that more exhaust gas gathers on the larger opening side of the flare. At the same time, the presence of the sponge can initially absorb the humid gas in the air when the exhaust gas is sucked in, reducing the impact of humid exhaust gas adhering to its side wall when it is sucked into the intake tube and causing blockage over a long period of time.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The waste gas purification device for a wastewater treatment plant described in this utility model, by setting up an intake fan, can actively draw the waste gas above the wastewater treatment plant into the purification chamber for treatment, reducing the impact of the accumulated waste gas on the surrounding environment. The second filter can perform preliminary filtration on the waste gas drawn into the intake pipe, reducing the amount of particulate matter in the waste gas entering the intake pipe and reducing the impact of blockage. Since the second filter and the first filter are fixed between multiple connecting cylinders and the first fixed plate by multiple bolts, it is easy to disassemble and replace them when the adsorption filtration becomes saturated due to long-term filtration. At the same time, the setting of multiple connecting cylinders can extend or shorten the length of the intake pipe as needed, which is convenient for installation and replacement and allows for multiple filtration and purification of waste gas.

[0015] 2. The waste gas purification device for wastewater treatment plants described in this utility model, by setting up a liquid storage box, can spray various different purification reaction liquids into the purification chamber according to different usage environments, so that they can fully neutralize the waste gas inside the purification chamber, reduce the harmful gas molecules, remove various odors and pollutants, and make the purification effect faster and more efficient. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a cross-sectional view of the suction tube in this utility model;

[0019] Figure 3 This is a schematic diagram of the liquid storage box in this utility model;

[0020] Figure 4 This is a cross-sectional view of the purification chamber in this utility model;

[0021] Figure 5 This is a schematic diagram of the flaring device in this utility model;

[0022] In the diagram: 1. Purification chamber; 11. Suction pipe; 12. First fixing plate; 13. First filter; 14. Connecting cylinder; 15. Second filter; 16. Bolt; 17. Exhaust pipe; 18. Suction fan; 19. Second fixing plate; 2. Liquid storage box; 21. Liquid inlet; 22. Connecting pipe; 23. Nozzle; 24. Through hole; 3. Third fixing plate; 4. Heating rod; 5. Telescopic pipe; 6. Flapper; 61. Sponge. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 2As shown in the embodiment of this utility model, a wastewater treatment plant exhaust gas purification device includes a purification chamber 1; an air intake fan 18 is fixedly connected to the side wall of the purification chamber 1; an air intake pipe 11 is detachably installed on the side wall of the air intake fan 18; the air intake pipe 11 communicates with the interior of the purification chamber 1; a first fixing plate 12 is fixedly connected to the middle of the air intake pipe 11; a plurality of connecting cylinders 14 are detachably fixed to the end of the first fixing plate 12 by bolts 16; the plurality of connecting cylinders 14 are detachably fixed to each other by bolts 16; wherein one of the connecting cylinders 14 is located away from the air intake pipe 11. A second fixing plate 19 is detachably fixed to the end of the cylinder 14 by bolts 16; a first filter 13 is fixed inside each of the connecting cylinders 14; a second filter 15 is fixed inside the second fixing plate 19; an exhaust pipe 17 is fixed to the side wall away from the suction pipe 11. In use, the suction fan 18 and the suction pipe 11 are inserted into each other. The suction pipe 11 is placed above the sewage treatment plant, and the switch of the suction fan 18 is turned on to start its operation. The exhaust gas is sucked into the purification chamber 1 through the suction pipe 11. Inside, the gas first undergoes preliminary filtration through a filter assembly consisting of multiple connecting cylinders 14 and a second fixed plate 19. Then, it enters a secondary filtration structure composed of multiple connecting cylinders 14 and a first filter plate 13 for deeper filtration and adsorption. After multiple filtration processes, the gas is drawn into the purification chamber 1 by the suction fan 18. Once purified inside the purification chamber 1, the gas is discharged through the suction fan 18. By installing the suction fan 18, the exhaust gas above the wastewater treatment plant can be actively drawn into the purification chamber 1 for treatment, reducing the impact of exhaust gas accumulation on the surrounding environment. The second filter 15 can perform preliminary filtration of the exhaust gas inside the intake pipe 11, reducing the amount of particulate matter in the exhaust gas entering the intake pipe 11 and reducing the impact of blockage. Since the second filter 15 and the first filter 13 are both fixed between the multiple connecting cylinders 14 and the first fixing plate 12 by multiple bolts 16, they are easy to disassemble and replace when the adsorption filter becomes saturated due to long-term filtration. At the same time, the setting of multiple connecting cylinders 14 can extend or shorten the length of the intake pipe 11 as needed, which is convenient for installation and replacement and multiple filtration and purification of exhaust gas.

[0025] like Figure 3As shown, a liquid storage box 2 is fixedly connected to the top of the suction pipe 11; multiple liquid injection ports 21 are fixedly connected to the top of the liquid storage box 2; multiple connecting pipes 22 are fixedly connected to the bottom of the liquid storage box 2; multiple nozzles 23 are fixedly connected to the ends of the connecting pipes 22; multiple through holes 24 are opened on the side wall of the nozzles 23. In use, the purification reaction liquid is injected into the liquid storage box 2 through the liquid injection ports 21, and then the liquid is sprayed into the purification chamber 1 through the multiple through holes 24, so that it can fully neutralize the exhaust gas entering the purification chamber 1, reducing the harmful substances in the exhaust gas. By setting up the liquid storage box 2, various different purification reaction liquids can be sprayed into the purification chamber 1 according to different usage environments, so that they can fully neutralize the exhaust gas inside the purification chamber 1, reducing the harmful gas molecules, removing various odors and pollutants, etc., making the purification effect faster and more efficient.

[0026] like Figure 4 As shown, multiple third fixing plates 3 are fixed to the inner sidewall of the suction pipe 11. The third fixing plates 3 are evenly distributed on the top and bottom of the suction pipe 11 and are staggered. In use, multiple third fixing plates 3 are installed on the top and ground inside the purification chamber 1, and the multiple third fixing plates 3 are evenly spaced, staggered, and regularly arranged. By setting multiple third fixing plates 3, when the exhaust gas enters the purification chamber 1, it is blocked by the regularly arranged third fixing plates 3, causing it to travel in the middle of the path formed by the combination of multiple third fixing plates 3, fully mix with the purification reaction liquid sprayed inside the purification chamber 1, decompose the harmful gases inside, and improve the purification efficiency.

[0027] like Figure 4 As shown, multiple sets of heating rods 4 are fixed to the side wall of the third fixed plate 3. Each set of heating rods 4 is evenly distributed on both sides of the third fixed plate 3. In use, multiple heating rods 4 are fixed on both sides of the third fixed plate 3, so that the heating rods 4 are evenly distributed up and down along the side walls of the third fixed plate 3. The switch is turned on to start heating. By setting multiple heating rods 4 on both sides of the third fixed plate 3, when the exhaust gas is drawn into the purification chamber 1 and travels along the route formed by the arrangement of multiple third fixed plates 3, the temperature inside the purification chamber 1 is raised by heating. This allows the exhaust gas to accelerate the fusion reaction with the liquid sprayed on the top side inside the purification chamber 1, reducing the phenomenon that some exhaust gas is too slow to fuse and decompose with the liquid due to the influence of ambient temperature. At the same time, after raising the temperature inside the purification chamber 1, excess liquid is reduced to remain inside the purification chamber 1 and on the surface of the third fixed plate 3, reducing the problem of bacterial growth.

[0028] like Figure 5As shown, a telescopic tube 5 is fixedly connected to the side wall of the connecting cylinder 14. The telescopic tube 5 is located on the side wall of the multiple connecting cylinders 14 away from the first fixed plate 12. In use, the telescopic tube 5 is connected to the end of the connecting cylinder 14. The length of the telescopic tube 5 can be freely adjusted according to the usage requirements to adapt to different distances of the site, so as to fully draw the exhaust gas into the suction pipe 11. By setting the telescopic tube 5, its length can be adjusted according to the usage environment to adapt to different distances. At the same time, when it is not needed, it can also be compressed and retracted to reduce space occupation and facilitate storage and carrying.

[0029] like Figure 5 As shown, a flare 6 is fixedly connected to the end of the telescopic pipe 5; a sponge 61 is fixedly connected to the inner wall of the flare 6. In use, the end of the telescopic pipe 5 is connected to the side with the smaller opening of the flare 6, and the end with the larger opening of the flare 6 is placed above the sewage treatment station. By setting the flare 6, the opening area when the exhaust gas is sucked in is increased, so that more exhaust gas is gathered on the side with the larger opening of the flare 6. At the same time, the presence of the sponge 61 can initially absorb the humid gas in the air when the exhaust gas is sucked in, reducing the impact of humid exhaust gas adhering to its side wall when it is sucked into the intake pipe 11 and causing blockage over a long period of time.

[0030] Working principle: During use, the suction pipe 11 is placed above the sewage treatment plant, and the suction fan 18 is turned on to start its operation. The exhaust gas is drawn into the purification chamber 1 through the suction pipe 11. Upon entering the suction pipe 11, the exhaust gas first undergoes preliminary filtration through a filter assembly consisting of a pair of connecting cylinders 14 and a second filter element 15. Then, it enters a secondary filtration structure composed of multiple sets of first fixed plates 12 and first filter elements 13 for deeper filtration and adsorption. After multiple filtration processes, the exhaust gas is drawn into the purification chamber 1 by the suction fan 18. After purification within the purification chamber 1, the exhaust gas is discharged through the suction fan 18. The purification reaction liquid is then injected into the storage box 2 through the liquid injection port 21. Finally, the liquid is sprayed into the purification chamber 1 through multiple through-holes 24. To ensure that the exhaust gas entering the purification chamber 1 is fully neutralized, reducing harmful substances in the exhaust gas, multiple third fixing plates 3 are installed on the top and ground inside the purification chamber 1, with even spacing between them, staggered vertically, and arranged regularly. Multiple heating rods 4 are fixed on both sides of the third fixing plates 3, so that the heating rods 4 are evenly distributed along the two side walls of the third fixing plates 3, and the switch is turned on to start heating. A telescopic pipe 5 is connected to the end of the connecting cylinder 14, and the length of the telescopic pipe 5 can be freely adjusted according to the usage requirements to adapt to different distances of the site, fully sucking the exhaust gas into the intake pipe 11. A flared end 6 with a smaller opening is connected to the end of the telescopic pipe 5, and the end with a larger opening of the flared end 6 is placed above the sewage treatment station.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment plant exhaust gas purification device, characterized by: Including the purification box (1), the suction fan (18) is fixed to the side wall of the purification box (1), the suction pipe (11) is detachably installed on the side wall of the suction fan (18), the suction pipe (11) is communicated with the inside of the purification box (1), the first fixed plate (12) is fixed to the middle of the suction pipe (11), a plurality of connecting barrels (14) are detachably connected to the end of the first fixed plate (12) through bolts (16), a plurality of connecting barrels (14) are detachably connected through bolts (16), one of the connecting barrels (14) away from the suction pipe (11) is detachably connected to the second fixed plate (19) through the bolt (16), the first filter piece (13) is fixed in each connecting barrel (14), the second filter piece (15) is fixed in the second fixed plate (19), and the exhaust pipe (17) is fixed to the side wall away from the suction pipe (11).

2. A device for purifying exhaust air from a sewage treatment plant according to claim 1, characterised in that: The top of the suction pipe (11) is fixedly connected with a liquid storage box (2), a plurality of liquid injection ports (21) are fixedly connected to the top of the liquid storage box (2), a plurality of communication pipes (22) are fixedly connected to the bottom of the liquid storage box (2), a plurality of spray heads (23) are fixedly connected to the end of the communication pipe (22), and a plurality of through holes (24) are formed in the side wall of the spray head (23).

3. A sewage farm exhaust gas purification apparatus according to claim 2, characterized by: A plurality of third fixed plates (3) are fixed to the inner side wall of the suction pipe (11), and the third fixed plates (3) are evenly distributed on the top side and the bottom of the suction pipe (11) and are arranged staggered.

4. A sewage farm exhaust gas purification apparatus according to claim 3, characterized by: A plurality of groups of heating rods (4) are fixed to the side wall of the third fixed plate (3), and each group of heating rods (4) is evenly distributed on both sides of the third fixed plate (3).

5. A sewage farm exhaust gas purification apparatus according to claim 4, characterized by: The side wall of the connecting barrel (14) is fixedly connected with a telescopic pipe (5), and the telescopic pipe (5) is arranged on the side wall away from the first fixed plate (12) of the plurality of connecting barrels (14).

6. A sewage farm exhaust gas purification apparatus according to claim 5, characterized by: The end of the telescopic pipe (5) is fixedly connected with a flaring device (6), and the sponge (61) is fixedly connected to the inner side wall of the flaring device (6).

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