Waste gas treatment device

Abstract

The utility model relates to the technical field of waste gas treatment, in particular to a waste gas treatment device which comprises a box body, a rotary drum adsorption mechanism and a driving mechanism, the rotary drum adsorption mechanism and the driving mechanism are arranged in the box body, an adsorption gas inlet is formed in one side of the box body, a gas outlet is formed in the top of the box body, and a high-temperature gas inlet pipe is arranged at the gas outlet; the rotating cylinder adsorption mechanism comprises a rotating seat rotationally connected to the inner bottom of the box body, a plurality of partition vertical plates arranged on the rotating seat and a top plate connected to the tops of the partition vertical plates, a plurality of adsorption boxes are arranged between the adjacent partition vertical plates, and the adsorption boxes are filled with adsorption media. After the adsorption box is blocked, the corresponding adsorption box can be independently disassembled and replaced, so that the adsorption box is convenient to maintain, disassemble, assemble and transport. In the rotating process of the drum adsorption mechanism, organic pollutants in the waste gas are adsorbed, and are quickly desorbed and concentrated under the action of hot air to form high-concentration waste gas, so that concentrated efficient purification treatment is facilitated, and the waste gas purification efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a waste gas treatment device. Background Art

[0002] In industrial manufacturing, waste gas is often generated in the process of producing products in industries such as chemical industry, steel, oil refining, circuit boards, leather, plastics, painting, printing, etc. These waste gases will cause pollution when they are directly discharged into the atmosphere, especially organic waste gas, which not only affects the environment, but also seriously endangers human health. Therefore, the waste gas needs to be treated before it is discharged. For organic waste gas, catalytic combustion is generally used at present, that is, the waste gas is introduced into the combustion chamber, fully burned under the action of the catalyst, so that the organic components are decomposed, and then the gas is discharged. The combustion process is generally heated and decomposed by introducing fossil fuels such as natural gas. In the actual production process, the waste gas generated will inevitably be mixed with a large amount of air, and it is impossible to ensure that the amount of waste gas generated is the same, which leads to different concentrations of organic matter in the waste gas. The combustion process is not energy efficient and consumes more energy. Therefore, when treating organic waste gas, it is generally necessary to concentrate the waste gas, increase the concentration of organic matter in the waste gas, and then conduct centralized heating and decomposition. The existing method is generally to pass the organic waste gas discharged from production into the adsorption medium, and the adsorption medium adsorbs the organic matter and then desorbs it. After desorption, high-concentration organic waste gas is formed, and then the high-concentration organic waste gas is concentrated for combustion treatment. The traditional operation is generally to place the adsorption medium in an integral structure, such as a disc structure, in which the adsorption medium is filled inside the turntable. When the surface adsorption medium is blocked, the entire turntable needs to be replaced, which is costly. In addition, this type of structure is large in size and weight, which is not only troublesome to transport and install, but also cumbersome and difficult to repair and maintain, which invisibly increases the cost. Utility Model Content

[0003] In order to solve the above problems, the utility model provides an exhaust gas treatment device.

[0004] The utility model is implemented by the following scheme:

[0005] A waste gas treatment device, the waste gas treatment device includes a box body, a rotary drum adsorption mechanism arranged inside the box body, and a driving mechanism for driving the rotary drum adsorption mechanism to rotate, an adsorption air inlet is arranged on one side of the box body, and an air outlet is arranged on the top of the box body, and the air outlet is provided with a high-temperature air inlet pipe; the rotary drum adsorption mechanism includes a rotating seat rotatably connected to the bottom of the box body, a plurality of partition vertical plates arranged on the rotating seat, a top plate connected to the top of the partition vertical plates, a plurality of adsorption boxes are arranged between adjacent partition vertical plates, and the adsorption boxes are filled with adsorption medium; the air outlet is connected to the top plate.

[0006] Furthermore, a high-temperature flue gas collection and insulation cover is provided on one side of the rotary drum adsorption mechanism, a high-temperature air port is provided on the side of the high-temperature flue gas collection and insulation cover facing the box body, and the pipe opening of the high-temperature air inlet pipe faces the high-temperature flue gas collection and insulation cover.

[0007] Furthermore, a purifier is provided on one side of the box body, the purifier is connected to the high-temperature air port through a first connecting pipe, and the high-temperature air intake pipe is connected to the purifier through a second connecting pipe.

[0008] Furthermore, the adsorption air inlet and the high-temperature air outlet are respectively arranged on two opposite sides of the box body.

[0009] Furthermore, the plurality of partition plates are evenly distributed in a circular array based on the rotation axis of the rotating seat.

[0010] Furthermore, an air baffle is provided on one side of the partition plate facing outwards in the vertical direction.

[0011] Furthermore, the driving mechanism includes a driving motor disposed at the bottom of the box body, a transmission chain connected to an output end of the driving motor, and the transmission chain is drivingly connected to the rotating seat.

[0012] Furthermore, the side wall of the rotating seat is evenly provided with a plurality of teeth matching the transmission chain.

[0013] Furthermore, the adsorption medium includes zeolite and activated carbon.

[0014] Furthermore, an inspection door is provided on one side of the box.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model is provided with a plurality of partitioning plates on the rotating seat, and a plurality of adsorption boxes are provided between adjacent partitioning plates. When the adsorption box is blocked, the corresponding adsorption box can be removed and replaced separately, which is convenient for maintenance, disassembly, assembly and transportation. During the rotation of the drum adsorption mechanism, the organic pollutants in the exhaust gas are adsorbed and discharged quickly after reaching the emission standard. Afterwards, under the action of hot air, the organic pollutants are quickly desorbed from the adsorption medium and concentrated to form high-concentration exhaust gas, which is convenient for centralized and efficient purification treatment and improves the exhaust gas purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the box body of an exhaust gas treatment device provided by the utility model.

[0018] Figure 2 for Figure 1 Enlarged view of part A in the middle.

[0019] Figure 3 This is a schematic diagram of another state of the box body of the utility model.

[0020] Figure 4 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 5 It is a schematic diagram of another angle of the utility model as a whole.

[0022] Included in the picture are:

[0023] Box body 1, adsorption air inlet 11, air outlet 12, high-temperature air inlet pipe 13, inspection door 14, rotary drum adsorption mechanism 2, rotating seat 21, partition vertical plate 22, top plate 23, adsorption box 24, air baffle strip 25, gear portion 26, driving mechanism 3, driving motor 31, transmission chain 32, high-temperature flue gas collection and insulation cover 4, high-temperature air outlet 41, purifier 5, first connecting pipe 51, second connecting pipe 52. DETAILED DESCRIPTION

[0024] In order to facilitate those skilled in the art to understand the present invention, the present invention will be further described in detail below in conjunction with specific embodiments and drawings.

[0025] Reference Figures 1 to 5 The utility model provides a waste gas treatment device, which includes a housing 1, a rotary drum adsorption mechanism 2 arranged inside the housing 1, a driving motor 313 for driving the rotary drum adsorption mechanism 2 to rotate, an adsorption air inlet 11 is arranged on one side of the housing 1, and an air outlet 12 is arranged on the top of the housing 1, and a high-temperature air inlet pipe 13 is arranged on the air outlet 12. The adsorption air inlet 11 located on one side of the housing 1 is connected to the exhaust duct of the production workshop, and is used to pass the waste gas generated during the production process, and the air outlet 12 located on the top of the housing 1 is used to discharge the gas after adsorption. The high-temperature air inlet pipe 13 enters the interior of the rotary drum adsorption mechanism 2 from the air outlet 12, and passes high-temperature gas to desorb the adsorption medium after adsorbing organic pollutants.

[0026] The rotary drum adsorption mechanism 2 includes a rotating seat 21 rotatably connected to the bottom of the box body 1, a plurality of partition plates 22 arranged on the rotating seat 21, a top plate 23 connected to the top of the partition plates 22, and a plurality of adsorption boxes 24 are arranged between adjacent partition plates 22, and the adsorption boxes 24 are filled with adsorption medium. The gas outlet 12 is connected to the top plate 23. The adsorption box 24 and the partition plates 22 are detachably connected, and are locked and fixed by fasteners and the partition plates 22. A plurality of adsorption boxes 24 can be stacked between two adjacent partition plates 22, forming a modular structure as a whole, so that after the adsorption medium in one of the adsorption boxes 24 is blocked, the adsorption box 24 can be removed and replaced alone. The adsorption box 24 can adopt a mesh box (cage box) to facilitate the passage of gas. In order to avoid blocking, only one adsorption box 24 is shown in the attached figure.

[0027] In this embodiment, the rotating seat 21 is circular, and a plurality of partitioning plates 22 are arranged near the edge, and the partitioning plates 22 are arranged along the radial direction of the rotating seat 21. Specifically, the plurality of partitioning plates 22 are evenly distributed in a circular array based on the rotation axis of the rotating seat 21, and adsorption boxes 24 are placed in the intervals between adjacent partitioning plates 22, that is, a circle of adsorption boxes 24 is placed around the edge of the rotating seat 21, so that the whole is hollow cylindrical, and the waste gas generated by production and processing enters the adsorption box 24 from the outside of the adsorption cylinder, enters the inside of the cylinder after being adsorbed and purified by the adsorption box 24, and is discharged from the top of the cylinder.

[0028] A high-temperature flue gas collection and insulation cover 4 is provided on one side of the rotary drum adsorption mechanism 2, and a high-temperature air port 41 is provided on the side of the high-temperature flue gas collection and insulation cover 4 facing the box body 1, and the pipe mouth of the high-temperature air intake pipe 13 faces the high-temperature flue gas collection and insulation cover 4. Specifically, the high-temperature flue gas collection and insulation cover 4 covers a distance from the top plate 23 to the rotating seat 21 in the vertical direction, and the high-temperature flue gas collection and insulation cover 4 covers a distance in the horizontal direction that is at least greater than the interval between adjacent partition vertical plates 22. In order to improve the desorption efficiency, the horizontal direction can be set to cover 3 intervals. The high-temperature gas introduced by the high-temperature air intake pipe 13 blows toward the position covered by the high-temperature gas cover, so that the high-temperature gas can pass through the adsorption box 24 within the coverage range to desorb the adsorption medium in the adsorption box 24. After passing through the adsorption box 24, the high-temperature gas takes away the organic pollutants in the adsorption medium to form a high-concentration organic waste gas. In specific implementation, a structure similar to the high-temperature flue gas collection and insulation cover 4 can also be set on the inner side of the partition plate 22 to facilitate better coverage of the high-temperature gas and the area corresponding to the high-temperature flue gas collection and insulation cover 4, thereby improving the desorption efficiency.

[0029] A purifier 5 is provided on one side of the housing 1, and the purifier 5 is connected to the high-temperature air port 41 through a first connecting pipe 51, and the high-temperature air intake pipe 13 is connected to the purifier 5 through a second connecting pipe 52. After the high-concentration organic waste gas enters the purifier 5, it is burned and decomposed at high temperature to achieve purification, and then the purified gas can be discharged. The second connecting pipe 52 can reuse the heat generated by the purifier 5. Of course, in the specific implementation, the second connecting pipe 52 can also be connected to other heating equipment to pass hot air.

[0030] The adsorption air inlet 11 and the high-temperature air outlet 41 are respectively arranged on opposite sides of the box body 1. The organic waste gas generated by production and processing enters from the side farther from the high-temperature air outlet 41, so that the adsorption medium in the adsorption box 24 can fully adsorb organic pollutants before rotating to the high-temperature flue gas collection and insulation cover 4, thereby ensuring the effect of adsorption and desorption and ensuring the concentration ratio.

[0031] The outward side of the partition vertical plate 22 is provided with an air barrier strip 25 in the vertical direction to prevent the leakage of organic waste gas. Since the rotating seat 21 needs to rotate, there is a certain gap between the rotating seat 21 and the high-temperature flue gas collection and insulation cover 4. The air barrier strip 25 can cover the gap to prevent the leakage of organic waste gas. In addition, the high-temperature flue gas collection and insulation cover 4 can also be provided with a corresponding air barrier strip 25, and the two air barrier strips 25 form a match. The air barrier strip 25 is made of soft material, and forms elastic contact during the rotation of the rotating seat 21, thereby avoiding damage caused by hard contact. In specific implementation, materials such as high-temperature resistant rubber strips can be used.

[0032] The driving mechanism 3 includes a driving motor disposed at the bottom of the box 1, a transmission chain 32 connected to the output end of the driving motor, and the transmission chain 32 is in driving connection with the rotating seat. The driving motor can be a reduction motor, and the reduction motor can be controlled to control the rotation speed of the rotating seat 21, so as to flexibly adjust the adsorption and desorption time.

[0033] The side wall of the rotating seat is evenly provided with a plurality of teeth 26 matching the transmission chain 32. The transmission chain 32 is directly connected to the teeth 26 of the rotating seat 21, thereby driving the rotating seat 21 to rotate. Of course, in a specific implementation, a gear can also be provided on the rotating seat 21 to connect with the transmission chain 32.

[0034] The adsorption medium includes zeolite and activated carbon. One of them or a mixture of the two can be used. Of course, the adsorption medium is not limited to the above two in specific implementation. It can be flexibly selected according to actual needs. By setting different types of adsorption media, it is possible to effectively cope with the purification of complex exhaust gas.

[0035] A maintenance door 14 is provided on one side of the box body 1, and a staff can enter the maintenance door 14 to perform operations such as replacing the adsorption box 24, so as to facilitate maintenance.

[0036] In specific implementation, the air outlet 12 can be provided with a fan to transport gas. When working, the driving motor 313 drives the rotary drum adsorption mechanism 2 to rotate slowly, and the waste gas generated by production and processing enters the interior of the box body 1 from the adsorption air inlet 11, and enters the inner side of the rotary drum adsorption mechanism 2 after passing through the adsorption box 24. Then, the gas purified by adsorption is discharged from the air outlet 12. As the rotating seat 21 rotates, the adsorption box 24 that has adsorbed organic pollutants reaches the corresponding position of the high-temperature flue gas collection and insulation cover 4. The high-temperature air inlet pipe 13 introduces hot air and blows it from the inner side of the rotary drum adsorption mechanism 2 toward the side of the high-temperature flue gas collection and insulation cover 4. When the hot air passes through the adsorption box 24, it takes away the organic pollutants adsorbed by the adsorption medium to achieve desorption. After passing through the adsorption box 24, the hot air forms a high-concentration waste gas, which enters the purifier 5 for high-temperature combustion and decomposition to complete the purification of the waste gas.

[0037] The utility model is provided with a plurality of partitioning plates 22 on the rotating seat 21, and a plurality of adsorption boxes 24 are provided between adjacent partitioning plates 22. When the adsorption box 24 is blocked, the corresponding adsorption box 24 can be removed and replaced separately, which is convenient for maintenance, disassembly, assembly and transportation. During the rotation of the drum adsorption mechanism 2, the organic pollutants in the waste gas are adsorbed and discharged quickly after reaching the emission standard. After that, under the action of hot air, the organic pollutants are quickly desorbed from the adsorption medium and concentrated to form high-concentration waste gas, which is convenient for centralized and efficient purification treatment and improves the waste gas purification efficiency.

[0038] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes according to the above content. Therefore, all such substitutions, improvements and changes are included in the scope of the appended claims.

Claims

1. An exhaust gas treatment device, characterized in that: The exhaust gas treatment device includes a box body, a rotary drum adsorption mechanism arranged inside the box body, and a driving mechanism for driving the rotary drum adsorption mechanism to rotate. An adsorption air inlet is arranged on one side of the box body, and an air outlet is arranged on the top of the box body. The air outlet is provided with a high-temperature air inlet pipe; the rotary drum adsorption mechanism includes a rotating seat rotatably connected to the bottom of the box body, a plurality of partition vertical plates arranged on the rotating seat, a top plate connected to the top of the partition vertical plates, and a plurality of adsorption boxes are arranged between adjacent partition vertical plates. The interior of the adsorption box is filled with adsorption medium; the air outlet is connected to the top plate.

2. The exhaust gas treatment device according to claim 1, characterized in that: A high-temperature flue gas collection and insulation cover is arranged on one side of the rotary drum adsorption mechanism, a high-temperature air port is arranged on the side of the high-temperature flue gas collection and insulation cover facing the box body, and the pipe opening of the high-temperature air inlet pipe faces the high-temperature flue gas collection and insulation cover.

3. The exhaust gas treatment device according to claim 2, characterized in that: A purifier is arranged on one side of the box body, the purifier is connected to the high-temperature air port through a first connecting pipe, and the high-temperature air intake pipe is connected to the purifier through a second connecting pipe.

4. The exhaust gas treatment device according to claim 2, characterized in that: The adsorption air inlet and the high-temperature air outlet are respectively arranged on two opposite sides of the box body.

5. The exhaust gas treatment device according to claim 1, characterized in that: The plurality of partition vertical plates are evenly distributed in a circular array based on the rotation axis of the rotating seat.

6. The exhaust gas treatment device according to claim 1, characterized in that: An air baffle is arranged on one side of the partition vertical plate facing outwards in a vertical direction.

7. The exhaust gas treatment device according to claim 1, characterized in that: The driving mechanism comprises a driving motor arranged at the bottom of the box body, a transmission chain connected to the output end of the driving motor, and the transmission chain is in driving connection with the rotating seat.

8. The exhaust gas treatment device according to claim 7, characterized in that: The side wall of the rotating seat is evenly provided with a plurality of teeth matching the transmission chain.

9. The exhaust gas treatment device according to claim 1, characterized in that: The adsorption medium includes zeolite and activated carbon.

10. The exhaust gas treatment device according to claim 1, characterized in that: An inspection door is arranged on one side of the box body.

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