Waste gas purification device for degrading industrial VOCs (Volatile Organic Compounds) by applying microbial flora

Abstract

The utility model discloses a waste gas purification device for degrading industrial VOCs (Volatile Organic Compounds) by applying microbial flora, which comprises a purification treatment box and a waste gas purification component positioned in the purification treatment box, an input pipe is fixedly connected to one side wall of the purification treatment box, and maintenance grooves communicated with an inner cavity of the purification treatment box are formed in the top wall and the bottom wall of the purification treatment box; square base plates are welded in the two maintenance grooves, closing plates are attached to the opposite sides of the two base plates correspondingly, two inner extending rods are welded to the side, facing an inner cavity of the purification treatment box, of each closing plate, and attaching plates are connected to the two inner extending rods on the closing plates; wherein the space of an inner cavity of the purification treatment box is divided into a downstream channel located in the center and backflow channels located on the upper side and the lower side by two attachment plates. According to the waste gas purification device for degrading the industrial VOCs by using the microbial flora, the contact area and the contact time of the VOCs waste gas and the activated carbon filter screen are longer, and a better adsorption effect on harmful components in the VOCs is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of VOCs waste gas purification, and in particular relates to a waste gas purification device which utilizes microorganisms to degrade industrial VOCs. Background Art

[0002] Volatile organic compounds (VOCs) are usually divided into several categories, including non-methane hydrocarbons (NMHCs), oxygen-containing organic compounds, halogenated hydrocarbons, nitrogen-containing organic compounds, sulfur-containing organic compounds, etc. Volatile organic compounds participate in the formation of ozone and secondary aerosols in the atmospheric environment, and have an important impact on regional atmospheric ozone pollution and PM2.5 pollution.

[0003] In the process of realizing the utility model, the inventors found that there are at least the following problems in the technology: Volatile organic compound (VOCs) waste gas needs to be treated with harmful components before it can be discharged. Currently, activated carbon is usually used to purify the harmful components in VOCs waste gas by adsorption. However, in the current devices for purifying VOCs waste gas, the activated carbon filter inside is usually parallel or vertical to the flow direction of VOCs waste gas, and the VOCs waste gas is directly discharged after circulation. The contact time and contact area between the VOCs waste gas and the activated carbon filter are not enough, resulting in an incomplete reaction.

[0004] To this end, we proposed a waste gas purification device that uses microbial bacteria to degrade industrial VOCs to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a waste gas purification device that uses microorganisms to degrade industrial VOCs, so that the contact area and contact time between VOCs waste gas and activated carbon filter are longer, thereby achieving a better adsorption effect on harmful components in VOCs, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A waste gas purification device for degrading industrial VOCs using microorganisms, comprising a purification treatment box and a waste gas purification component located in the purification treatment box, an input pipe is fixedly connected to one side wall of the purification treatment box, maintenance grooves communicating with the inner cavity of the purification treatment box are formed on the top wall and the bottom wall of the purification treatment box, two maintenance grooves are welded with a U-shaped pad, and closing plates are respectively attached to the opposite sides of the two pads, wherein each closing plate is welded with two inner extension rods on the side facing the inner cavity of the purification treatment box, and the two inner extension rods on the closing plate are connected with an attachment plate, wherein the space in the inner cavity of the purification treatment box is divided into a downstream channel located in the center and a return flow channel located on the upper and lower sides by the two attachment plates, and a circulating air duct is formed by means of the downstream channel and the return flow channels on both sides, so that VOCs waste gas can be circulated multiple times in the inner cavity of the purification treatment box, and harmful components therein are repeatedly adsorbed during the circulation process, and two attachment plates are provided and symmetrically arranged on both sides of the inner cavity of the purification treatment box, and the opposite side walls of the attachment plates are attached to the inner wall of the purification treatment box;

[0008] The exhaust gas purification component includes activated carbon filters respectively fixed on two attachment plates, and each attachment plate is provided with multiple groups of activated carbon filters. The multiple groups of activated carbon filters on the attachment plate are spliced ​​with each other, but the angles of the multiple groups of activated carbon filters are different, so that the whole composed of the multiple groups of activated carbon filters is not a flat plate, but has undergone multiple turns, so as to increase the contact area with the VOCs exhaust gas. Each group of activated carbon filters is connected to two legs, and the two legs are welded to the attachment plate. An inward groove is also formed inside the purification treatment box, and an output pipe communicating with the inner cavity of the purification treatment box is fixedly welded in the inward groove, and a valve is installed on the output pipe. The valve can be an electric valve or other common valves to control the opening and closing of the output pipe.

[0009] As a preferred embodiment, a grille is fixedly installed at the opening of the inlet pipe on the side facing away from the purification treatment box; wherein the grille can filter some large solid objects visible to the naked eye to prevent such objects from entering the purification treatment box.

[0010] As a preferred implementation scheme, the four side walls of the closing plate are all in contact with the inner wall of the maintenance groove, so that after the closing plate is fixed in the maintenance groove, the maintenance groove can be closed, thereby preventing VOCs waste gas from leaking from the maintenance groove to the outside.

[0011] As a preferred embodiment, handles are respectively connected to the opposite sides of the two closing plates, so that the closing plates can be easily grasped and moved by the handles.

[0012] As a preferred embodiment, side storage grooves are formed on the two opposite side walls of the maintenance groove toward the purification treatment box, a spring is fixedly connected in the side storage groove, and a positioning spring block is connected to the spring to abut against the closing plate; thereby, the closing plate can be fixed by the cooperation of the spring and the positioning spring block.

[0013] As a preferred implementation scheme, the four side walls of the positioning spring block are all in contact with the inner wall of the side receiving groove, so that the positioning spring block can only translate in one direction in the side receiving groove without shaking, thereby ensuring the stability of the closing plate.

[0014] As a preferred embodiment, the two attachment plates and the activated carbon filters thereon are all arranged at an angle, thereby making it easier for the multiple groups of activated carbon filters on the attachment plates to contact with the VOCs waste gas.

[0015] In summary, the technical effects and advantages of the utility model are as follows:

[0016] The waste gas purification device that uses microorganisms to degrade industrial VOCs increases the contact area between the activated carbon filter and the VOCs waste gas by extending the circulation time of the VOCs waste gas in the purification treatment box and arranging multiple turning plates that are interconnected but at different angles, so that the contact area and contact time between the VOCs waste gas and the activated carbon filter are longer, thereby achieving a better adsorption effect on harmful components in VOCs.

[0017] In the waste gas purification device which uses microorganisms to degrade industrial VOCs, during the reaction, the VOCs waste gas first enters the downstream channel and contacts with multiple sets of activated carbon filters on the upper and lower sides of the downstream channel, so that the activated carbon filters adsorb and react the corresponding harmful components in the VOCs waste gas. Subsequently, the VOCs waste gas enters the two reflux channels under the action of two attachment plates, and then refluxes into the downstream channel and reacts with multiple sets of activated carbon filters. After repeated multiple times, the VOCs waste gas can be adsorbed more thoroughly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a vertical cross-sectional view of the utility model;

[0020] Figure 3 For this utility model Figure 2 A magnified view of the structure at center;

[0021] Figure 4 For this utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0022] In the figure: 1. purification treatment box; 2. input pipe; 3. grille; 4. downstream channel; 5. return channel; 6. inward groove; 7. output pipe; 8. valve; 9. maintenance groove; 10. closing plate; 11. handle; 12. pad; 13. inner extension rod; 14. attachment plate; 15. support foot; 16. activated carbon filter; 17. side storage groove; 18. spring; 19. positioning spring block. DETAILED DESCRIPTION

[0023] 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 of the embodiments.

[0024] Reference Figure 1-Figure 4 , a waste gas purification device for degrading industrial VOCs using microorganisms, comprising a purification treatment box 1 and a waste gas purification component located in the purification treatment box 1, an input pipe 2 is fixedly connected to one side wall of the purification treatment box 1, and a grille 3 is fixedly installed at the opening of the input pipe 2 on the side facing away from the purification treatment box 1, wherein the grille 3 can filter some solid objects with large volume and visible to the naked eye to prevent such objects from entering the purification treatment box 1;

[0025] A maintenance groove 9 communicating with the inner cavity is formed on the top wall and the bottom wall of the purification treatment box 1. A U-shaped pad 12 is welded in the two maintenance grooves 9. A closing plate 10 is respectively attached to the opposite sides of the two pads 12. The four side walls of the closing plate 10 are attached to the inner wall of the maintenance groove 9, so that the closing plate 10 can be fixed in the maintenance groove 9 to close the maintenance groove 9, thereby preventing VOCs waste gas from leaking from the maintenance groove 9 to the outside. Handles 11 are respectively connected to the opposite sides of the two closing plates 10, so that the closing plate 10 can be held and moved by the handles 11;

[0026] Two inner extension rods 13 are welded on one side of each closing plate 10 facing the inner cavity of the purification treatment box 1, and the two inner extension rods 13 on the closing plate 10 are connected to the attachment plate 14, wherein the space in the inner cavity of the purification treatment box 1 is divided into a downstream channel 4 located in the center and a return channel 5 located on the upper and lower sides by the two attachment plates 14, and a circulating air duct is formed by means of the downstream channel 4 and the return channels 5 on both sides, so that the VOCs waste gas can be circulated multiple times in the inner cavity of the purification treatment box 1, and the harmful components therein are repeatedly adsorbed during the circulation process. There are two attachment plates 14 in total and they are symmetrical to the two sides of the inner cavity of the purification treatment box 1, and the opposite side walls of the attachment plates 14 are both in contact with the inner wall of the purification treatment box 1;

[0027] The exhaust gas purification component includes an activated carbon filter 16 fixed on two attachment plates 14, and each attachment plate 14 is provided with a plurality of activated carbon filters 16. The plurality of activated carbon filters 16 on the attachment plate 14 are spliced ​​with each other, but the plurality of activated carbon filters 16 have different angles, so that the plurality of activated carbon filters 16 are not a flat plate, but are turned many times, so as to increase the contact area with the VOCs exhaust gas. The two attachment plates 14 and the activated carbon filters 16 thereon are tilted, so as to In order to make the multiple groups of activated carbon filters 16 on the attachment plate 14 contact with the VOCs exhaust gas more easily, each group of activated carbon filters 16 is connected to two legs 15, and the two legs 15 are welded to the attachment plate 14, and an inward groove 6 is formed inside the purification treatment box 1, and an output pipe 7 communicating with the inner cavity of the purification treatment box 1 is fixedly welded in the inward groove 6, and a valve 8 is installed on the output pipe 7. The valve 8 can be an electric valve or other common valves, which is used to control the opening and closing of the output pipe 7.

[0028] In addition, side receiving grooves 17 are formed on the two opposite side walls of the maintenance groove 9 toward the purification treatment box 1, and a spring 18 is fixedly connected in the side receiving groove 17, and a positioning spring block 19 is connected to the spring 18 and abuts against the closing plate 10, so that the closing plate 10 can be fixed by the cooperation of the spring 18 and the positioning spring block 19. The four side walls of the positioning spring block 19 are in contact with the inner wall of the side receiving groove 17, so that the positioning spring block 19 can only translate in one direction in the side receiving groove 17 without shaking, thereby ensuring the stability of the closing plate 10.

[0029] The waste gas purification device using microorganisms to degrade industrial VOCs: when performing VOCs waste gas purification treatment, first make the valve 8 close the output pipe 7, and send the VOCs waste gas into the inner cavity of the purification treatment box 1 through the input pipe 2, the VOCs waste gas first enters the downstream channel 4, and contacts with the multiple groups of activated carbon filters 16 on the upper and lower sides of the downstream channel 4, so that the activated carbon filter 16 performs adsorption reaction treatment on the corresponding harmful components in the VOCs waste gas (activated carbon adsorbs harmful components in VOCs waste gas, which is the prior art), and then the VOCs waste gas enters the two reflux channels 5 under the action of the two attachment plates 14, and then flows back to the downstream channel 4 and reacts with the multiple groups of activated carbon filters 16, so that the VOCs waste gas can be reacted more thoroughly and the harmful components can be absorbed better; after the harmful components in the VOCs waste gas are absorbed, the valve 8 opens the output pipe 7 to discharge the reacted gas.

[0030] 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waste gas purification device for degrading industrial VOCs using microorganisms, characterized in that: The invention comprises a purification treatment box (1) and an exhaust gas purification component located in the purification treatment box (1), wherein a side wall of the purification treatment box (1) is fixedly connected to an input pipe (2), and the top wall and the bottom wall of the purification treatment box (1) are both formed with maintenance grooves (9) communicating with the inner cavity thereof, and two U-shaped pads (12) are welded in the two maintenance grooves (9), and the two pads (12) are respectively fitted with closing plates (10) on the opposite sides, wherein each of the closing plates (10) is welded with two inner extension rods (13) on the side facing the inner cavity of the purification treatment box (1), and the two inner extension rods (13) on the closing plate (10) are connected to an attachment plate (14), and the space in the inner cavity of the purification treatment box (1) is divided into a downstream channel (4) located in the center and a return channel (5) located on the upper and lower sides by the two attachment plates (14), and the opposite side walls of the attachment plate (14) are fitted with the inner wall of the purification treatment box (1); The exhaust gas purification component comprises activated carbon filters (16) respectively fixed on two attachment plates (14), and each of the attachment plates (14) is provided with a plurality of groups of activated carbon filters (16), the plurality of groups of activated carbon filters (16) on the attachment plates (14) are spliced ​​with each other, the plurality of groups of activated carbon filters (16) have different angles, each group of activated carbon filters (16) is connected with two legs (15), and the two legs (15) are welded to the attachment plates (14), an inward groove (6) is also formed inside the purification treatment box (1), an output pipe (7) communicating with the inner cavity of the purification treatment box (1) is fixedly welded inside the inward groove (6), and a valve (8) is installed on the output pipe (7).

2. The waste gas purification device for degrading industrial VOCs using microorganisms according to claim 1 is characterized in that: A grille net (3) is fixedly installed at the opening of the inlet pipe (2) on the side facing away from the purification treatment box (1).

3. The waste gas purification device for degrading industrial VOCs using microorganisms according to claim 1 is characterized in that: The four side walls of the closing plate (10) are all in contact with the inner wall of the maintenance groove (9).

4. The waste gas purification device for degrading industrial VOCs using microorganisms according to claim 3 is characterized in that: The two closing plates (10) are respectively connected to handles (11) on opposite sides thereof.

5. The waste gas purification device for degrading industrial VOCs using microorganisms according to claim 1 is characterized in that: The two opposite side walls of the maintenance groove (9) are formed with side receiving grooves (17) facing the purification treatment box (1), a spring (18) is fixedly connected in the side receiving groove (17), and a positioning spring block (19) abutting against the closing plate (10) is connected to the spring (18).

6. The waste gas purification device for degrading industrial VOCs using microorganisms according to claim 5 is characterized in that: The four side walls of the positioning spring block (19) are all in contact with the inner wall of the side receiving groove (17).

7. The waste gas purification device for degrading industrial VOCs using microorganisms according to claim 1 is characterized in that: The two attachment plates (14) and the activated carbon filter screens (16) thereon are both arranged at an inclination.

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