CN216498379U

CN216498379U - Waste gas treatment device

Info

Publication number: CN216498379U
Application number: CN202122398712.1U
Authority: CN
Inventors: 孙绍堂; 莫汉池; 董学勇
Original assignee: Guangzhou JP EPE Co Ltd
Current assignee: Guangzhou JP EPE Co Ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-05-13
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to the technical field of environmental protection, and discloses a waste gas treatment device which is communicated with a production workshop and comprises a waste gas treatment box, a dust removal module, a deodorization module, a dehumidification module, a sterilization module and a filtration module, wherein the dust removal module, the deodorization module, the dehumidification module, the sterilization module and the filtration module are arranged in the waste gas treatment box, waste gas in the production workshop can enter the waste gas treatment box, dust in the waste gas can be removed through the dust removal module in sequence, odor in the waste gas is removed through the deodorization module, moisture in the waste gas is removed through the dehumidification module, microorganisms or bacteria in the waste gas are removed through the sterilization module, particles in the waste gas are removed through the filtration module, so that the waste gas achieves the standard of reuse after being subjected to a series of treatments, the waste gas is recycled and reused efficiently, or zero pollution and zero emission are realized, and when the waste gas is returned to the production workshop again, the closed cycle of the waste gas in the production workshop can be realized without emission, is green and environment-friendly.

Description

Waste gas treatment device

Technical Field

The utility model relates to the technical field of environmental protection, in particular to a waste gas treatment device.

Background

In the production process of the workshop such as a feed factory, a food factory and the like, some process waste gas is generated, and the process waste gas generally has larger dust, bacteria and odor. Although harmful substances such as formaldehyde are generally not present in an excessive amount, the harmful substances are discharged into the environment without being treated, and the environment is still polluted greatly.

At present, the waste gas is treated by simple dedusting and deodorization and then is discharged, but the treatment method is simpler and more convenient, but is not suitable for the national energy conservation and emission reduction requirements at present, and the waste gas cannot be recycled with high efficiency or even realize zero pollution and zero emission.

Therefore, an exhaust gas treatment device is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an exhaust gas treatment device, which can be used for treating exhaust gas produced in a workshop to enable the exhaust gas to reach the standard of reuse and can be returned to the workshop again, so that closed circulation of the exhaust gas in the workshop is realized, no emission is caused, and the device is green and environment-friendly.

As the conception, the technical scheme adopted by the utility model is as follows:

the utility model provides an exhaust treatment device, communicates in workshop, including the exhaust treatment case with set up in dust removal module, deodorization module, dehumidification module, the module of disinfecting and the filter module of exhaust treatment incasement, the waste gas of workshop can get into the exhaust treatment case, and pass through in proper order the dust removal module the deodorization module the dehumidification module the module of disinfecting with get back to the workshop again after the processing of dehumidification module.

Optionally, the exhaust-gas treatment case includes the primary treatment case, dust removal module set up in the primary treatment incasement, dust removal module is for spraying dust removal module, it includes the first piece that sprays to spray dust removal module, the first piece that sprays is configured as can to spray liquid in the primary treatment incasement.

Optionally, the exhaust-gas treatment case still includes the secondary treatment case, deodorization module set up in the secondary treatment incasement, deodorization module is biological deodorization module, biological deodorization module include biological fungus bed with set up in the second of biological fungus bed top sprays a piece, the second spray a piece be configured as can to the secondary treatment incasement sprays liquid, the secondary treatment incasement still is provided with the connecting air pipe, connecting air pipe one end communicate in the primary treatment case, the other end stretches into biological fungus bed below.

Optionally, the exhaust-gas treatment case still includes the secondary treatment case, deodorization module set up in the secondary treatment incasement, deodorization module is for spraying deodorization module, photodissociation deodorization module or plasma deodorization module.

Optionally, the exhaust-gas treatment case still includes tertiary processing case, the dehumidification module set up in tertiary processing incasement, be provided with the intercommunication on the tertiary processing case the vent of secondary processing case, the vent is located the top of biological fungus bed, still be provided with the outlet on the tertiary processing case, the outlet is configured to can discharge the produced liquid of dehumidification module dehumidification in-process.

Optionally, the dehumidification module is a cooling dehumidification module, the cooling dehumidification module includes a heat pipe and a surface cooler, and the exhaust gas can loop through the precooling section of the heat pipe, the surface cooler and the reheating section of the heat pipe.

Optionally, the dehumidification module is solution dehumidification module, solution dehumidification module includes dehumidification tower, regeneration tower and water pump, the water pump communicate respectively in the dehumidification tower with the regeneration tower, be equipped with dehumidification solution in the dehumidification tower, waste gas can with dehumidification solution contact, dehumidification solution can pass through the water pump is in the dehumidification tower with circulate between the regeneration tower.

Optionally, the sterilization module is disposed in the tertiary treatment tank, and the sterilization module is an ultraviolet lamp.

Optionally, the filtering module is disposed in the tertiary treatment tank, and the filtering module is a high efficiency filter.

Optionally, exhaust treatment device still includes oxygenerator and oxygen volume monitoring module, the oxygenerator communicate in the workshop, oxygen volume monitoring module signal connection in the oxygenerator, oxygen volume detection module is configured to can monitor the oxygen content of gas in the workshop.

The utility model has the beneficial effects that:

the waste gas treatment device provided by the utility model is communicated with a production workshop, and comprises a waste gas treatment box and a dust removal module, a deodorization module, a dehumidification module, a sterilization module and a filtering module, wherein the dust removal module is arranged in the waste gas treatment box, waste gas in the production workshop can enter the waste gas treatment box, dust in the waste gas can be removed through the dust removal module in sequence, odor in the waste gas is removed through the deodorization module, moisture in the waste gas is removed through the dehumidification module, microorganisms or bacteria in the waste gas are removed through the sterilization module, particles in the waste gas are removed through the filtering module finally, so that the waste gas reaches the reuse standard after a series of treatments, the waste gas is recycled efficiently, or zero pollution and zero emission are realized, the treated waste gas returns to the production workshop again, the closed cycle of the waste gas in the production workshop is not discharged, and the device is green and environment-friendly.

Drawings

Fig. 1 is a schematic structural diagram of an exhaust gas treatment device according to an embodiment of the present invention.

In the figure:

1. a waste gas treatment tank; 101. an air inlet; 102. an exhaust port; 103. a vent; 104. a water outlet; 105. A first cleaning port; 106. a second cleaning port; 11. a first-stage treatment box; 12. a secondary treatment tank; 13. a third-stage treatment box; 2. a first spray member; 3. a biological bacteria bed; 4. connecting an air pipe; 5. a second spray member; 6. a heat pipe; 61. a heat pipe pre-cooling section; 62. a heat pipe reheating section; 7. a surface cooler; 8. an ultraviolet lamp; 9. a high-efficiency filter.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

In order to realize the efficient recovery and utilization of the waste gas in a production workshop and reduce the pollution to the environment. The embodiment provides an exhaust treatment device, can with workshop direct intercommunication to handle the produced waste gas in workshop, the waste gas after handling moreover can also regard as clean air to get into in the workshop again. Specifically, this exhaust treatment device includes exhaust treatment case 1 and sets up dust removal module, deodorization module, dehumidification module, the module of disinfecting and the filter module in exhaust treatment case 1, and after the waste gas that produces in the workshop got into exhaust treatment case 1, can loop through aforementioned several modules to remove dust, deodorization, dehumidification, disinfect and filtration treatment to waste gas, so that waste gas can reach the standard of reusing.

Optionally, an air inlet 101 and an air outlet 102 are arranged on the waste gas treatment tank 1, and induced draft fans are arranged at the air inlet 101 and the air outlet 102 to realize diversion of waste gas and accelerate the flow of the waste gas. Wherein, the air inlet 101 sets up on the primary treatment case 11 of exhaust-gas treatment case 1, and the dust removal module sets up promptly in primary treatment case 11, and waste gas gets into exhaust-gas treatment case 1 back through air inlet 101, need carry out dust removal processing earlier. In this embodiment, the dust removal module is for spraying the dust removal module, and it includes that first spraying 2, and first spraying 2 is linked together with outside liquid reserve tank, and in exhaust treatment device work, the liquid in the liquid reserve tank can be through first spraying 2, is vaporific spraying in primary treatment case 11 to the waste gas that gets into the primary treatment case 11 carries out the dust removal processing. Optionally, a first cleaning opening 105 is further arranged in the primary treatment box 11, the first cleaning opening 105 is arranged below the primary treatment box 11, and after the waste gas treatment is completed, a worker can clean the settled residues in the dust removal process through the first cleaning opening 105.

After the dust removal treatment, the waste gas is required to be subjected to deodorization treatment continuously, the deodorization module is located in the secondary treatment box 12 communicated with the primary treatment box 11 through the connecting air pipe 4, and various methods are available for deodorizing the waste gas. The main principle of biological deodorization is that microorganisms can convert external substances into metabolites, carbon dioxide and water or cell substances in the growth process, so that pollutants can be converted into non-polluted or less-polluted substances by using biochemical reaction. The biological purification process of the exhaust gas goes through three stages: the first stage, the waste gas is contacted with water and dissolved in the water, namely the gas phase is transferred into a liquid film on the surface of a liquid phase or a solid phase, and the waste gas is fully contacted with microorganisms; in the second stage, the malodorous substances in the liquid-phase or solid-phase surface liquid film are adsorbed and absorbed by the microorganisms, and the malodorous components are transferred from the water to the microorganism bodies; in the third stage, the malodorous elements entering the microbial cells are decomposed and converted into harmless compounds as energy and nutrients during the microbial metabolism.

Therefore, as shown in fig. 1, the biological deodorization module comprises a second spraying part 5 and a biological fungus bed 3, wherein the second spraying part 5 is arranged above the biological fungus bed 3 and can spray water into the secondary treatment tank 12, one end of the connecting air pipe 4 is communicated with the primary treatment tank 11, and the other end of the connecting air pipe extends into the lower part of the biological fungus bed 3. With this arrangement, the waste gas can be brought into contact with and dissolved in water, and the waste gas can be brought into sufficient contact with the biological bacteria bed 3. Specifically, the biological fungus bed 3 is formed by filling inert carriers, microorganisms are attached to the inert carriers to grow, and the inert carriers are arranged, so that the gas-liquid contact rate can be effectively improved, and the odor elimination effect is improved. Alternatively, the inert carrier may be APC particles, carbon fibers, sponge fillers, or the like. In addition, because the concentration, the flow rate of the spraying liquid and the like of the waste gas are related to the deodorization rate of the waste gas, the adjustment of the deodorization rate of the waste gas can be realized by changing the setting parameters in the specific implementation process, and the economy is improved on the premise of ensuring effective deodorization.

In other embodiments, the deodorization module may also be a spray deodorization module, a photolysis deodorization module, or a plasma deodorization module. Optionally, the plant extract can be sprayed for deodorization, and the plant extract is nontoxic and pollution-free, can eliminate odor, has effects on acidic, alkaline and neutral gases, and can effectively treat malodor. Alternatively, the photolytic deodorization can be performed by irradiating with a high-energy ultraviolet beam, on one hand, oxygen in the air is cracked and combined into ozone, on the other hand, chemical bonds in the odor can be broken to form free atoms or groups, and simultaneously, the generated ozone participates in the reverberation process, so that the malodorous gas is finally cracked and oxidized to generate a simple and stable compound after being purified. Alternatively, plasma deodorization can be realized by ionizing gas by using an ion generator, generating a large amount of positive and negative oxygen ions under the action of a high-voltage electric field, having strong oxidizability, oxidizing and decomposing odor factors such as methyl mercaptan, ammonia, hydrogen sulfide, ethers and amines in a very short time, opening chemical bonds of organic volatile gas, and finally generating stable and harmless micromolecules such as carbon dioxide, water and the like.

Further, the waste gas treatment box 1 further comprises a third-stage treatment box 13, the dehumidification module is arranged in the third-stage treatment box 13, a vent 103 communicated with the second-stage treatment box 12 is arranged on the third-stage treatment box 13, and the vent 103 is located above the biological fungus bed 3 and matched with the arrangement position of the connecting air pipe 4, so that the waste gas is fully contacted with the biological fungus bed 3 in the second-stage treatment box 12. The dehumidifying module is used for removing moisture in the exhaust gas, and therefore, a water outlet 104 is further provided at the lower portion of the tertiary treatment tank 13 to facilitate the timely discharge of the removed moisture.

Specifically, the dehumidification module in this embodiment is a cooling dehumidification module, and the cooling dehumidification module includes the heat pipe 6 and the surface cooler 7, because the gas can hold different moisture at different temperatures and energies, the moisture content in the gas can be reduced along with the reduction of the gas temperature. The dehumidification module of this embodiment has utilized this cooling and dehumidification's principle promptly, makes waste gas carry out the primary cooling through the precooling section of heat pipe 6 earlier after getting into tertiary treatment case 13, then carries out the second grade cooling through surface cooler 7 again, and along with the reduction of temperature, the vapor in the waste gas condenses gradually to reach the saturated condition, when the dew point of waste gas continues to reduce, the vapor in the waste gas just becomes the condensate water and separates out, thereby the absolute water content in the waste gas obtains reducing, realizes the dehumidification. After cooling and dehumidification are completed, the exhaust gas continues to pass through the reheating section of the heat pipe 6 to increase the temperature of the exhaust gas, so that the reduction of the relative humidity is realized, and the further deep sterilization and disinfection treatment is facilitated.

In another embodiment, the dehumidification module is a solution dehumidification module, the exhaust gas can be treated by using solutions with good hygroscopicity, such as lithium bromide, lithium chloride, calcium chloride and the like, the water vapor partial pressure of the exhaust gas on the dehumidification side is greater than that of the concentrated solution, and the water is transferred from the exhaust gas to the solution by using the pressure difference between the two, so that the concentration of the solution is diluted. Optionally, the solution dehumidification module includes the dehumidification tower, regeneration tower and water pump, set up dehumidification solution in the dehumidification tower, waste gas gets into tertiary treatment case 13 after can with the dehumidification solution contact in the dehumidification tower, moisture in the waste gas is absorbed and dehumidifies by dehumidification solution, the concentration step-down of dehumidification solution, the dehumidification solution of absorbed moisture, will be sent to the regeneration tower by the water pump, and the regeneration air contact by heating coil heating, so that the moisture evaporation in the dehumidification solution, the concentration of the dehumidification solution in the regeneration tower improves, then can send the dehumidification solution of regeneration back to the dehumidification tower, continue to dehumidify waste gas, so circulate.

Further, a sterilization module is arranged in the tertiary treatment tank 13. Optionally, the sterilization module is an ultraviolet lamp 8. By ultraviolet irradiation, the DNA (deoxyribonucleic acid) structure of the microorganism can be destroyed and changed, so that the bacteria can die immediately or cannot reproduce the offspring, and the aim of sterilization is fulfilled.

Optionally, a filtering module is further arranged in the tertiary treatment tank 13, and the filtering module is a high-efficiency filter 9. The filter layer of the high-efficiency filter 9 can collect particles in the exhaust gas, can be used as a filter end generally, and is suitable for places with higher requirements on cleanliness, but along with the increase of collected dust, the filter efficiency of the filter layer is reduced, and the filter layer needs to be replaced in time to meet the requirement on purification cleanliness.

Of course, if be to the airtight and intensive workshop of personnel of environment, optionally, the exhaust treatment device that this embodiment provided still includes oxygenerator and oxygen volume detection module, can supply oxygen as necessary to guarantee the oxygen content of the waste gas that gets into in the workshop through gas vent 102, and oxygen volume monitoring module can monitor the oxygen content of gas in the workshop, and oxygen volume detection module signal connection is in the oxygenerator, can feed back oxygen content data to the oxygenerator in real time to this realizes opening in time and closing in good time of oxygenerator.

The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the utility model, which changes and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an exhaust treatment device, communicates in workshop, its characterized in that, including exhaust treatment case (1) with set up in dust removal module, deodorization module, dehumidification module, the module of disinfecting and filter module in exhaust treatment case (1), workshop's waste gas can get into exhaust treatment case (1), and pass through in proper order the dust removal module deodorization module the dehumidification module the module of disinfecting with get back to the workshop again after the processing of dehumidification module.

2. The exhaust gas treatment device according to claim 1, wherein the exhaust gas treatment tank (1) comprises a primary treatment tank (11), the dust removal module is disposed in the primary treatment tank (11), the dust removal module is a spray dust removal module, the spray dust removal module comprises a first spray member (2), and the first spray member (2) is configured to spray a liquid into the primary treatment tank (11).

3. The exhaust gas treatment device according to claim 2, wherein the exhaust gas treatment tank (1) further comprises a secondary treatment tank (12), the deodorization module is disposed in the secondary treatment tank (12), the deodorization module is a biological deodorization module, the biological deodorization module comprises a biological fungus bed (3) and a second spraying member (5) disposed above the biological fungus bed (3), the second spraying member (5) is configured to spray liquid into the secondary treatment tank (12), a connecting air pipe (4) is further disposed in the secondary treatment tank (12), one end of the connecting air pipe (4) is communicated with the primary treatment tank (11), and the other end of the connecting air pipe extends into the lower part of the biological fungus bed (3).

4. The exhaust gas treatment device according to claim 2, wherein the exhaust gas treatment tank (1) further comprises a secondary treatment tank (12), the deodorization module is disposed in the secondary treatment tank (12), and the deodorization module is a spray deodorization module, a photolysis deodorization module or a plasma deodorization module.

5. The waste gas treatment device according to claim 3, wherein the waste gas treatment box (1) further comprises a tertiary treatment box (13), the dehumidification module is arranged in the tertiary treatment box (13), a ventilation opening (103) communicated with the secondary treatment box (12) is arranged on the tertiary treatment box (13), the ventilation opening (103) is positioned above the biological bacteria bed (3), and a water outlet (104) is further arranged on the tertiary treatment box (13), and the water outlet (104) is configured to discharge liquid generated in the dehumidification process of the dehumidification module.

6. An exhaust gas treatment device according to claim 5, wherein the dehumidification module is a cooling dehumidification module comprising heat pipes (6) and surface coolers (7), and the exhaust gas can pass through a pre-cooling section of the heat pipes (6), the surface coolers (7) and a re-heating section of the heat pipes (6) in sequence.

7. The exhaust gas treatment device of claim 5, wherein the dehumidification module is a solution dehumidification module, the solution dehumidification module comprises a dehumidification tower, a regeneration tower and a water pump, the water pump is respectively communicated with the dehumidification tower and the regeneration tower, a dehumidification solution is arranged in the dehumidification tower, the exhaust gas can be contacted with the dehumidification solution, and the dehumidification solution can be circulated between the dehumidification tower and the regeneration tower through the water pump.

8. The exhaust gas treatment device of claim 5, wherein the sterilization module is disposed in the tertiary treatment tank (13), and the sterilization module is an ultraviolet lamp (8).

9. An exhaust gas treatment device according to claim 5, characterized in that the filter module is arranged in the tertiary treatment tank (13), the filter module being a high efficiency filter (9).

10. The exhaust treatment device of claim 1, further comprising an oxygen generator and an oxygen monitoring module, wherein the oxygen generator is communicated with the production workshop, the oxygen monitoring module is in signal connection with the oxygen generator, and the oxygen monitoring module is configured to monitor the oxygen content of the gas in the production workshop.