Oil mist-containing waste gas purification equipment

Abstract

The present invention discloses an oil mist-containing waste gas purification device, which includes a housing, a purification device, a partition board and a spraying device. Among them, intake ports and an air outlet are respectively formed at opposite ends of the top of the housing. A solution pool is formed at the bottom of the inner cavity of the housing, and an alkaline solution is filled in the solution pool; the purification device is received in the housing. The purification device includes a bracket and a purification net. The bracket is supported on the bottom of the housing. The bracket encloses a purification space, and the purification space is located above the solution pool. The purification net is installed in the purification space and is used for adhering to the oil stains in the oil mist-containing waste gas; the inner cavity of the housing includes an intake cavity and an air outlet cavity, and the intake cavity and the air outlet cavity are separated by a partition board. The partition board is arranged between the bracket and the top surface of the housing. The present invention purifies the oil mist-containing waste gas through the purification device, and at the same time the spraying device cleans the purification device, so that the purification device will not be blocked, and the whole process is automatically operated without manual cleaning, improving the treatment efficiency of the oil mist-containing waste gas.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and particularly relates to an oil mist-containing waste gas purification device. Background Art

[0002] A large amount of harmful oil mist-containing waste gas is generated during the production and manufacturing processes in various places such as chemical plants, rubber factories, biomass power stations, and plastic factories. Such waste gas causes great damage to the environment. Therefore, it needs to be purified before emission and can only be discharged after the treatment is completed.

[0003] Waste gas treatment requires the waste gas to pass through an adhesion material, and the adhesion material adheres to impurities such as oil stains, aerosols, and water vapor in it. Existing waste gas treatment equipment uses traditional spray towers and cyclone towers. When there are too many oil stains or other impurities in the waste gas, the equipment is prone to blockage and waste gas treatment cannot be carried out. At the same time, after the waste gas treatment equipment needs to be shut down, staff need to be arranged to enter the equipment to clean the adhesion material, which wastes time and manpower and results in low waste gas treatment efficiency. Summary of the Invention

[0004] The main purpose of the present invention is to provide an oil mist-containing waste gas purification device, aiming to solve the problem that if the existing waste gas treatment equipment contains a large amount of oil mist in the waste gas, the adhesion material is prone to blockage after running for a period of time, and at the same time, the problem that the waste gas treatment efficiency is low due to the need for manual cleaning of the adhesion material after shutdown.

[0005] To achieve the above object, the present invention provides an oil mist-containing waste gas purification device, including:

[0006] A housing, at opposite ends of the top of the housing, an air inlet and an air outlet communicating with the inner cavity of the housing are respectively provided. A solution pool is formed at the bottom of the inner cavity of the housing, and an alkaline solution is filled in the solution pool;

[0007] A purification device, housed in the housing, the purification device includes a bracket and a purification net. The bracket is supported on the bottom of the housing, the bracket encloses a purification space, the purification space is located above the solution pool, the purification net is installed in the purification space, and the purification net is used to adhere to the oil stains in the oil mist-containing waste gas;

[0008] A partition, the inner cavity of the housing includes an air inlet cavity and an air outlet cavity, the air inlet cavity and the air outlet cavity are separated by the partition, the partition is arranged between the bracket and the top and bottom surfaces of the housing, both the air inlet cavity and the air outlet cavity communicate with the purification space, the air inlet is communicated with the air inlet cavity, and the air outlet is communicated with the air outlet cavity;

[0009] A spraying device, housed in the housing;

[0010] The oily mist-containing waste gas enters the intake chamber from the intake port, and after passing through the purification space and the outlet chamber in sequence, it is output from the outlet port; the spraying device is used to suck the alkaline solution in the solution tank and spray the alkaline solution onto the purification net to dissolve the oil stains adhered to the purification net.

[0011] Preferably, the purification net includes a plurality of mounting rod groups and purification elements. The plurality of mounting rod groups are installed on the bracket at intervals in the first horizontal direction and are located in the purification space. Each mounting rod group includes a plurality of mounting rods arranged at intervals in the second horizontal direction. The first horizontal direction is perpendicular to the second horizontal direction. Each mounting rod is vertically arranged in the purification space, and each mounting rod is provided with the purification element. The purification element includes a plurality of fillers for adhering to the oil stains in the oily mist-containing waste gas.

[0012] Preferably, each mounting rod is inclined downward toward the intake chamber, and each filler is vertically installed on the corresponding mounting rod.

[0013] Preferably, the filler includes a main line and a plurality of adhesion wires. The main line is formed into a ring and installed on the mounting rod. The plurality of adhesion wires are arranged around the main line and cover the outer surface of the main line. One end of each adhesion wire is connected to the outer surface of the main line, and the other end extends away from the main line.

[0014] Preferably, a plurality of connection knots are arranged at intervals in the vertical direction on the mounting rod, and the main line is installed on the connection knots.

[0015] Preferably, a steam-water separator is further arranged in the outlet chamber. The steam-water separator divides the outlet chamber into a first separation chamber and a second separation chamber. After the oily mist-containing waste gas passing through the purification space enters the first separation space, it passes through the steam-water separator and the second separation space in sequence and is output from the outlet port.

[0016] Preferably, the spraying device includes a mounting frame, a spraying pump and a plurality of nozzles installed on the mounting frame. The spraying pump is used to extract the alkaline solution from the solution tank and convey it to the nozzles. The plurality of nozzles are arranged in an array and are located above the purification device, and the spray ports of each nozzle face downward.

[0017] Preferably, a stainless steel plate filter is arranged in the solution tank. The stainless steel plate filter divides the solution tank into a first tank chamber and a second tank chamber. The purification device is correspondingly arranged above the first tank chamber. The spraying pump is used to extract the alkaline solution from the second tank chamber so that the alkaline solution in the first tank chamber flows to the second tank chamber after being filtered by the stainless steel plate filter.

[0018] Preferably, an oil scraping machine is installed on the housing, and the oil scraping machine is used for adhering to and collecting the oil on the surface of the alkaline solution in the first cavity.

[0019] Preferably, the oil mist-containing waste gas purification equipment further includes an automatic chemical dosing device, which includes a liquid storage tank, a controller, a detector, and a metering pump. The liquid storage tank stores the alkaline solution. The detector is arranged in the housing and is used for detecting the liquid level height of the solution tank. Both the metering pump and the detector are electrically connected to the controller. The controller is used for controlling the metering pump to suck the alkaline solution from the liquid storage tank and add the alkaline solution into the solution tank when the liquid level height in the solution tank is lower than a preset height.

[0020] In the technical solution of the present invention, the oil mist-containing waste gas enters the intake cavity from the intake port. The partition plate prevents the oil mist-containing waste gas from flowing directly from above the purification space to the outlet port. The oil mist-containing waste gas fills the intake cavity and enters the purification space. In the purification space, the purification net adheres to the aerosol and small particle water mist in the oil mist-containing waste gas. As the adhered particles increase, the aerosol and small particle water mist fall into the solution tank at the bottom of the housing under the action of gravity. After the oil mist-containing waste gas is purified, it enters the outlet cavity from the purification space. The spraying device sucks the alkaline solution in the solution tank and sprays and washes the purification net through the nozzle. The alkaline solution dissolves the oil adhered to the purification net and then falls into the solution tank to prevent the purification net from being blocked due to excessive oil, improving the waste gas treatment efficiency. At the same time, the spraying device automatically cleans the purification net without manual cleaning of the purification net after shutdown, and the waste gas treatment can be carried out continuously, further improving the waste gas treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0022] Figure 1 It is a front view schematic diagram of an oil mist-containing waste gas purification equipment according to an embodiment of the present invention;

[0023] Figure 2 It is a side view schematic diagram of an oil mist-containing waste gas purification equipment according to an embodiment of the present invention;

[0024] Figure 3 It is a top view schematic diagram of an oil mist-containing waste gas purification equipment according to an embodiment of the present invention;

[0025] Figure 4The top view schematic diagram of the spraying device of the oil mist waste gas purification equipment according to an embodiment of the present invention;

[0026] Figure 5 The structural schematic diagram of the filler of the oil mist waste gas purification equipment according to an embodiment of the present invention.

[0027] Explanation of the reference numerals in the drawings:

[0028] Label Name Label Name 1 Oil mist-containing waste gas purification equipment 223 Purifying part 10 Housing 224 Packing 11 Air inlet 2241 Main line 12 Air outlet 2242 Adhesion wire 13 Solution tank 23 Purifying space 131 First tank cavity 30 Partition board 132 Second tank cavity 40 Spraying device 14 Air inlet cavity 41 Mounting bracket 15 Air outlet cavity 411 Support rod 151 First separation cavity 412 Cross bar 152 Second separation cavity 42 Spraying pump 20 Purifying device 43 Nozzle 21 Bracket 50 Steam-water separator 22 Purifying net 60 Stainless steel plate filter 221 Mounting rod group 70 Belt oil scraper 222 Mounting rod 90 Liquid sprayer

[0029] The realization of the purpose, functional characteristics and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0030] Next, the technical solutions in this embodiment will be clearly and completely described with reference to the accompanying drawings in this embodiment. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back...) in this embodiment are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0033] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] In addition, the technical solutions between various embodiments of the present invention can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] In the present invention, the descriptions of orientations such as "upper", "lower", "front", "rear", "left", and "right" are based on Figure 1 and Figure 2 the orientations shown, and are only used to explain the relative positional relationship between the components in the Figure 1 and Figure 2 shown postures. If the specific posture changes, the directional indication will also change accordingly.

[0036] The present invention provides an oil mist-containing waste gas purification device 1.

[0037] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 . An oil mist-containing waste gas purification device 1 according to this embodiment includes a housing 10, a purification device 20, a partition 30, and a spraying device 40. Among them, opposite ends of the top of the housing 10 are respectively provided with an air inlet 11 and an air outlet 12 that communicate with the inner cavity of the housing 10. A solution pool 13 is formed at the bottom of the inner cavity of the housing 10, and an alkaline solution is filled in the solution pool 13; the purification device 20 is housed in the housing 10. The purification device 20 includes a bracket 21 and a purification net 22. The bracket 21 is supported on the bottom of the housing 10. The bracket 21 encloses a purification space 23. The purification space 23 is located above the solution pool 13. The purification net 22 is installed in the purification space 23. The purification net 22 is used to adhere to the oil stains in the oil mist-containing waste gas; the inner cavity of the housing 10 includes an air inlet cavity 14 and an air outlet cavity 15. The air inlet cavity 14 and the air outlet cavity 15 are separated by a partition 30. The partition 30 is arranged between the top surface and the bottom surface of the housing 10. The air inlet cavity 14 and the air outlet cavity 15 are both communicated with the purification space 23. The air inlet 11 is communicated with the air inlet cavity 14, and the air outlet 12 is communicated with the air outlet cavity 15; the spraying device 40 is housed in the housing 10; the oil mist-containing waste gas enters the air inlet cavity 14 from the air inlet 11, and sequentially passes through the purification space 23 and the air outlet cavity 15 and then is output from the air outlet 12; the spraying device 40 is used to suck the alkaline solution in the solution pool 13 and spray the alkaline solution onto the purification net 22 to dissolve the oil stains adhered to the purification net 22.

[0038] Understandably, waste gas purification utilizes the principle of gas-phase inertial separation to transfer gaseous or aerosol pollutants in industrial waste gas containing oil mist to the solid purification mesh 22, thereby adhering to its oil and impurity. The partition plate 30 extends in the front-back direction and divides the part of the inner cavity of the housing 10 other than the solution pool 13 and the purification space 23 into an intake cavity 14 and an exhaust cavity 15. The intake cavity 14 and the exhaust cavity 15 are respectively located on the left and right sides of the housing 10. The intake port 11 is communicated with the intake cavity 14, and the exhaust port 12 is communicated with the exhaust cavity 15. The solution pool 13 is used to store the alkaline solution and the impurity particles, aerosol, water droplets, etc. adhered to the purification mesh 22.

[0039] In the technical solution of the present invention, the waste gas containing oil mist enters the intake cavity 14 from the intake port 11. The partition plate 30 prevents the waste gas containing oil mist from flowing directly from above the purification space 23 to the exhaust port 12. The waste gas containing oil mist fills the intake cavity 14 and enters the purification space 23. In the purification space 23, the purification mesh 22 adheres to the aerosol and small particle water mist in the waste gas containing oil mist. As the adhered particles increase, the aerosol and small particle water mist fall into the solution pool 13 at the bottom of the housing 10 under the action of gravity. After the waste gas containing oil mist is purified, it enters the exhaust cavity 15 from the purification space 23. The spraying device 40 sucks the alkaline solution in the solution pool 13 and sprays and washes the purification mesh 22 through the nozzle 43. The alkaline solution dissolves the oil adhered to the purification mesh 22 and then falls into the solution pool 13 to prevent the purification mesh 22 from being blocked due to excessive oil, improving the waste gas treatment efficiency. At the same time, the spraying device 40 automatically cleans the purification mesh 22 without manual cleaning of the purification mesh 22 after shutdown, and the waste gas treatment can be carried out continuously, further improving the waste gas treatment efficiency.

[0040] In one embodiment, the purification net 22 includes a plurality of mounting rods 221 and purification members 223. The plurality of mounting rods 221 are spaced along a first horizontal direction and mounted on the bracket 21 within the purification space 23. Each mounting rod 221 includes a plurality of mounting rods 222 spaced along a second horizontal direction. The first horizontal direction is perpendicular to the second horizontal direction. Each mounting rod 222 is vertically disposed within the purification space 23, and a purification member 223 is provided on each mounting rod 222. The purification member 223 includes a plurality of fillers 224 for adhering to the oil stains in the oil mist-containing waste gas. The mounting rods 221 are spaced along the front-rear direction, and the mounting rods 222 within the mounting rods 221 are spaced along the left-right direction, such that the mounting rods 222 cover the purification space 23, and further the purification members 223 cover the purification space 23. At the same time, the purification members 223 on each mounting rod 222 are composed of a plurality of fillers 224 spaced along the extending direction of the mounting rod 222, so that the fillers 224 cover the purification space 23, improving the treatment efficiency of the impurities in the oil mist-containing waste gas and the purification degree. The gaps between the fillers 224 are for the oil mist-containing waste gas to pass through. When the oil mist-containing waste gas passes through, its impurities are adhered by the fillers 224, thereby purifying the oil mist-containing waste gas.

[0041] Specifically, the filler 224 is made of resin fiber, which is easy to adhere to the impurities in the oil mist-containing waste gas and does not react with the alkaline solution. When the alkaline solution cleans the filler 224, it will not damage the filler 224, thereby increasing its service life.

[0042] Further, each mounting rod 222 is inclined downward toward the intake cavity 14, and each filler 224 is vertically mounted on the corresponding mounting rod 222. The mounting rod 222 is inclined toward the intake cavity 14, and the filler 224 is perpendicular to the mounting rod 222, such that the gaps between the fillers 224 are flush with the intake direction of the waste gas, so that the oil mist-containing waste gas can more easily fill the gaps between the fillers 224, thereby increasing the contact area between the fillers 224 and the oil mist-containing waste gas, improving the adhesion effect, and achieving more thorough purification.

[0043] Please refer to Figure 5 , in one embodiment, the filler 224 includes a main line 2241 and a plurality of adhesion filaments 2242. The main line 2241 is formed into a ring and mounted on the mounting rod 222. The plurality of adhesion filaments 2242 are looped around the main line 2241 and cover the outer surface of the main line 2241. One end of the adhesion filament 2242 is connected to the outer surface of the main line 2241, and the other end extends away from the main line 2241. The filler 224 adheres to the oil-containing impurities in the waste gas through the adhesion filaments 2242. The adhesion filaments 2242 cover the outer periphery of the main line 2241, thereby maximizing the contact area between the adhesion filaments 2242 and the oil mist-containing waste gas, and improving the adhesion effect.

[0044] In one embodiment, a plurality of connection knots (not shown in the figure) are vertically spaced on the mounting rod 222, and the main line 2241 is mounted on the connection knots. The main line 2241 is connected to the mounting rod 222 through the connection knots, which is convenient for installation and replacement, and at the same time prevents the packing 224 from falling off the mounting rod 222, improving its safety.

[0045] Please refer to Figure 1 , in one embodiment, a steam-water separator 50 is further provided in the air outlet cavity 15. The steam-water separator 50 divides the air outlet cavity 15 into a first separation cavity 151 and a second separation cavity 152. After the oil mist-containing waste gas passing through the purification space 23 enters the first separation space, it sequentially passes through the steam-water separator 50 and the second separation space and is output from the air outlet 12. The steam-water separator 50 is provided in the air outlet cavity 15 to perform secondary filtration on the purified oil mist-containing waste gas, thereby further improving the purification degree of the oil mist-containing waste gas and improving the purification effect. It can be understood that the steam-water separator 50 can be selected from the steam-water separators 50 in the prior art.

[0046] In one embodiment, the spraying device 40 includes a mounting frame 41, a spraying pump 42 and a plurality of nozzles 43 mounted on the mounting frame 41. The spraying pump 42 is used to extract the alkaline solution from the solution tank 13 and deliver it to the nozzles 43. The plurality of nozzles 43 are arranged in an array and are located above the purification device 20, and the spray ports of the nozzles 43 are arranged downward. The nozzles 43 are arranged in an array and correspond to the purification net 22, so that the alkaline solution can completely cover the purification net 22, improving the cleaning degree of the purification net 22.

[0047] Furthermore, the mounting frame 41 includes a support rod 411 and a plurality of cross bars 412 mounted on the support rod 411. The cross bars 412 extend along the second horizontal direction and are spaced along the first horizontal direction. It can be understood that the first horizontal direction is the front-back direction and the second horizontal direction is the left-right direction. The support rod 411 is mounted on the housing 10, and a plurality of nozzles 43 are arranged at intervals along the second horizontal direction on each cross bar 412. The cross bars 412 are correspondingly arranged above the purification net 22, so that the alkaline solution sprayed by the nozzles 43 can perform a comprehensive cleaning of the purification net 22 from top to bottom, improving the solubility of the residual oil stains on the purification net 22 and reducing the oil stain residue on the purification net 22, so that the purification net 22 can treat the oil stains in the subsequent waste gas more thoroughly during the subsequent purification process.

[0048] Optionally, the nozzle 43 can be a fan-shaped nozzle 43 or a swirl nozzle 43.

[0049] In one embodiment, a stainless - steel plate filter 60 is provided in the solution tank 13. The stainless - steel plate filter 60 divides the solution tank 13 into a first chamber 131 and a second chamber 132. The purification device 20 is correspondingly arranged above the first chamber 131. The spray pump 42 is used to extract the alkaline solution from the second chamber 132 so that the alkaline solution in the first chamber 131 flows to the second chamber 132 after being filtered by the stainless - steel plate filter 60. After the alkaline solution cleans the purification net 22, the oil stains attached to the purification net 22 fall into the solution tank 13. The stainless - steel plate filter 60 filters the oil stains in the solution tank 13, so that the alkaline solution in the second chamber 132 does not carry oil stains, and the alkaline solution sucked by the spray pump 42 does not carry oil stains. Thus, it is avoided that the oil stains originally carried in the alkaline solution contaminate the purification net 22 when cleaning the purification net 22, thereby improving the cleanliness of the purification net 22, and further improving the adhesion of the purification net 22 to the oil stains.

[0050] Further, a sprayer 90 is also provided in the solution tank 13. The sprayer 90 is communicated with the spray pump 42 and is used to spray a water column towards the direction of the second chamber 132, thereby pushing the solution to move towards the stainless - steel plate filter 60 and the second chamber 132, and improving its flow efficiency.

[0051] Further, the number of the sprayers 90 is multiple, and they are arranged at intervals in the front - to - back direction in the solution tank 13. The sprayer 90 is a nozzle 43. The multiple sprayers 90 can improve the flow efficiency of the solution in the solution tank 13.

[0052] In one embodiment, a belt oil scraper 70 is installed on the housing 10. The belt oil scraper 70 is located above one end of the first chamber 131 close to the stainless - steel plate filter 60. The belt oil scraper 70 is used to adhere to and collect the oil stains on the surface of the alkaline solution in the first chamber 131. The mass of the oil stains is less than that of the alkaline solution, so the oil stains will float on the liquid surface in the solution tank 13. At the same time, the oil stains are sticky. Therefore, the belt oil scraper 70 is set to pick up the oil stains to separate the oil stains from the solution, improving the purification efficiency of the solution and preventing the oil stains from contaminating the solution. It can be understood that the belt oil scraper can be selected from the existing belt oil scrapers in the prior art.

[0053] In one embodiment, the oil mist-containing waste gas purification device 1 further includes an automatic chemical dosing device (not shown in the figure). The automatic chemical dosing device includes a liquid storage tank, a controller, a detector, and a metering pump. The liquid storage tank stores an alkaline solution. The detector is disposed in the housing 10 and is used to detect the liquid level height of the solution tank 13. Both the metering pump and the detector are electrically connected to the controller. The controller is configured to control the metering pump to suck the alkaline solution from the liquid storage tank and add the alkaline solution to the solution tank 13 when the liquid level height in the solution tank 13 is lower than a preset height. By providing the automatic chemical dosing device, when the detector detects that the alkaline solution in the solution tank 13 is insufficient, the controller controls the metering pump to extract the alkaline solution from the liquid storage tank and add it to the solution tank 13, so that the oil mist-containing waste gas purification device 1 can operate continuously, thereby improving the waste gas treatment efficiency.

[0054] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. An oil mist-containing waste gas purification device, characterized in that, Comprising: A housing, at opposite ends of the top of the housing are respectively provided with an air inlet and an air outlet communicating with the inner cavity of the housing, a solution pool is formed at the bottom of the inner cavity of the housing, and an alkaline solution is filled in the solution pool; A purification device, housed in the housing, the purification device includes a bracket and a purification net, the bracket is supported on the bottom of the housing, the bracket encloses a purification space, the purification space is located above the solution pool, the purification net is installed in the purification space, and the purification net is used for adhering the oil stains in the oil mist-containing waste gas; A partition board, the inner cavity of the housing includes an air inlet cavity and an air outlet cavity, the air inlet cavity and the air outlet cavity are separated by the partition board, the partition board is arranged between the top surface and the bottom surface of the housing, the air inlet cavity and the air outlet cavity are both communicated with the purification space, the air inlet is communicated with the air inlet cavity, and the air outlet is communicated with the air outlet cavity; A spraying device, housed in the housing; The oil mist-containing waste gas enters the air inlet cavity from the air inlet, and after passing through the purification space and the air outlet cavity in sequence, it is output from the air outlet; the spraying device is used for sucking the alkaline solution in the solution pool and spraying the alkaline solution onto the purification net to dissolve the oil stains adhered to the purification net; The purification net includes a plurality of mounting rod groups and purification members, the plurality of mounting rod groups are installed on the bracket at intervals along a first horizontal direction and are located in the purification space, each mounting rod group includes a plurality of mounting rods arranged at intervals along a second horizontal direction, the first horizontal direction is perpendicular to the second horizontal direction, each mounting rod is vertically arranged in the purification space, and each mounting rod is provided with the purification member, the purification member includes a plurality of fillers for adhering the oil stains in the oil mist-containing waste gas, and the fillers are made of resin fibers; each mounting rod is inclined downward toward the air inlet cavity from top to bottom, and each filler is vertically installed on the corresponding mounting rod; The filler includes a main line and a plurality of adhesion filaments, the main line is formed into a ring and installed on the mounting rod, the plurality of adhesion filaments are arranged around the main line and cover the outer surface of the main line, one end of the adhesion filament is connected to the outer surface of the main line, and the other end extends away from the main line; a plurality of connection knots are arranged at intervals vertically on the mounting rod, and the main line is installed on the connection knots.

2. The oil mist-containing waste gas purification equipment according to claim 1, characterized in that, A steam-water separator is further arranged in the air outlet cavity, the steam-water separator divides the air outlet cavity into a first separation cavity and a second separation cavity, after the oil mist-containing waste gas passing through the purification space enters the first separation cavity, it passes through the steam-water separator and the second separation cavity in sequence and is output from the air outlet.

3. The oil mist-containing waste gas purification equipment according to claim 1, wherein The spraying device includes a mounting frame and a spraying pump and a plurality of nozzles installed on the mounting frame, the spraying pump is used for pumping the alkaline solution from the solution pool and delivering it to the nozzles, the plurality of nozzles are arranged in an array and are located above the purification device, and the spray openings of each nozzle are arranged downward.

4. The oil mist-containing waste gas purification equipment according to claim 3, wherein, A stainless-steel plate filter is provided in the solution tank. The stainless-steel plate filter divides the solution tank into a first chamber and a second chamber. The purification device is correspondingly arranged above the first chamber. The spray pump is used to extract the alkaline solution from the second chamber so that the alkaline solution in the first chamber flows to the second chamber after being filtered by the stainless-steel plate filter.

5. The oil mist-containing waste gas purification equipment according to claim 4, characterized in that, A belt oil scraper is installed on the housing. The belt oil scraper is used to adhere to and collect the oil stains on the surface of the alkaline solution in the first chamber.

6. The oil mist-containing waste gas purification equipment according to claim 1, characterized in that, The oil mist-containing waste gas purification equipment further includes an automatic dosing device. The automatic dosing device includes a liquid storage tank, a controller, a detector, and a metering pump. The liquid storage tank stores the alkaline solution. The detector is arranged in the housing and is used to detect the liquid level height of the solution tank. Both the metering pump and the detector are electrically connected to the controller. The controller is used to control the metering pump to suck the alkaline solution from the liquid storage tank and add the alkaline solution to the solution tank when the liquid level height in the solution tank is lower than a preset height.

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