Industrial waste gas VOC organic waste gas purifier

Abstract

The utility model discloses an industrial waste gas VOC (volatile organic compound) organic waste gas purifier and relates to the field of waste gas treatment. The device comprises a plurality of solvent absorption tanks which are linearly arranged, an axial flow fan and an adsorption box, every two adjacent solvent absorption tanks are communicated end to end through an arched gas guide pipe; a waste gas inlet pipe is also mounted on the head solvent absorption tank; the tail solvent absorption tank is also provided with a second arched gas-guide tube, and the gas outlet end of the arched gas-guide tube is connected with the axial flow fan through an adapter. According to the solvent absorption device, a plurality of solvent absorption tanks which are linearly arranged are adopted, U-shaped structures and separation baffles are designed in the solvent absorption tanks, and the solvent absorption tanks are matched with stirring plates and water spraying fillers, so that the contact area between organic gas and a solvent can be effectively increased, and the dissolution and absorption efficiency is improved; through the plurality of continuously arranged solvent absorption tanks, the waste gas absorption recovery rate is increased, different types of organic waste gas can be respectively and sequentially dissolved, absorbed and recovered, and the efficiency of treating complex organic waste gas is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment, in particular to an industrial waste gas VOC organic waste gas purifier. Background Art

[0002] In industrial production, the treatment of organic waste gas has always been an important issue in the field of environmental protection. Volatile organic compounds (VOCs) contained in organic waste gas are one of the main pollutants that cause air pollution. If they are directly discharged into the atmosphere without treatment or improper treatment, they will have a serious impact on the environment and human health. Therefore, it is of great practical significance to develop a purification equipment that is efficient, low-noise, occupies a small area, and can treat complex organic waste gas.

[0003] At present, industrial waste gas treatment technologies mainly include physical methods, chemical methods and biological methods. Among them, the physical method mainly uses adsorbents or solvents to adsorb or absorb organic waste gas. This method is simple and effective, but traditional physical adsorption equipment has problems such as low adsorption efficiency and difficulty in adsorbent regeneration; the chemical method converts organic waste gas into harmless substances through chemical reactions, but this method usually requires high temperature and high pressure conditions, consumes a lot of energy, and may cause secondary pollution; the biological method uses the metabolism of microorganisms to degrade organic waste gas. Although it is environmentally friendly, it has low treatment efficiency and is selective for waste gas components. In industries such as petrochemical enterprises that produce high-concentration VOCs waste gas, the use of adsorption alone may require frequent replacement due to limited adsorbent capacity and easy saturation; and the use of absorption alone may be difficult to recycle or require additional separation equipment due to the complex VOCs components in the waste gas. Therefore, in these cases, the combined use of adsorption and absorption methods can more efficiently treat high-concentration and complex VOCs waste gas.

[0004] To this end, the utility model provides an industrial waste gas VOC organic waste gas purifier, which, through a specific structure and combination, can effectively improve the treatment efficiency of organic waste gas, reduce noise and floor space, and at the same time can adapt to the treatment needs of complex organic waste gas. Utility Model Content

[0005] The purpose of the utility model is to provide an industrial waste gas VOC organic waste gas purifier, which can effectively increase the contact area between organic gas and solvent and increase the gas outlet filtration area in a three-dimensional space through the combination of several solvent absorption tanks, axial flow fans, adsorption boxes, etc.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is an industrial waste gas VOC organic waste gas purifier, comprising a plurality of solvent absorption tanks, axial flow fans and adsorption boxes arranged in a linear manner; two adjacent solvent absorption tanks are connected head to tail through arched air guide pipes; a waste gas inlet pipe is also installed on the head of the solvent absorption tank; a second arched air guide pipe is also installed on the tail of the solvent absorption tank, and the air outlet end of the arched air guide pipe is connected to the axial flow fan through an adapter; the axial flow fan is connected to the adsorption box.

[0008] The axial cross-section of the solvent absorption tank is a U-shaped structure; a partition baffle is fixed on a relative inner wall of the solvent absorption tank from the upper end to the middle and lower part, dividing the interior of the solvent absorption tank into an air inlet side and an air outlet side; a motor is fixed through the side wall of the lower end of the solvent absorption tank; the motor output shaft passes through the interior of the solvent absorption tank, and at least two stirring plates arranged along the axial direction are fixed on the motor output shaft; an inclined rectangular frame is fixed to the lower end of the air inlet side of the partition baffle and the relative inner wall of the solvent absorption tank; a water sprinkling filler is arranged on the rectangular frame.

[0009] As a preferred technical solution of the utility model, a plurality of the solvent absorption tanks and the adsorption box are installed together on a mounting frame.

[0010] As an optimal technical solution of the utility model, the mounting frame includes a base plate; a row of supporting vertical plates for fixing a plurality of the solvent absorption tanks are fixed on the base plate; the adsorption box is fixed on the base plate; a plurality of fixed columns are fixed on the upper surface of the base plate; a ceiling is fixed on the upper ends of the plurality of fixed columns.

[0011] As a preferred technical solution of the utility model, an inlet and outlet liquid pipe is fixedly passed through the outer wall of the lower end of the solvent absorption tank; and a ball valve is installed on the inlet and outlet liquid pipe.

[0012] As an optimal technical solution of the utility model, the adsorption box includes an air guide box body, a plurality of adsorption filter elements and a plurality of sealing covers; the air guide box body includes a rectangular box body; a connector connected to the axial flow fan is penetrated and fixed on the upper surface of the rectangular box body; a row of rectangular tubes are penetrated and fixed on both side surfaces of the rectangular box body; an L-shaped partition plate is fixed in the rectangular tube, and the L-shaped partition plate divides the rectangular tube into an air guide chamber and a filter element installation chamber; the sealing cover is tightly installed on the ends of the air guide chamber and the filter element installation chamber by bolts; the rectangular tube and the L-shaped partition plate on both sides of the filter element installation chamber are provided with a plurality of ventilation holes.

[0013] As a preferred technical solution of the utility model, the sealing cover includes a rectangular cover plate; a first plug and a second plug that cooperate with the air guide cavity and the filter element installation cavity are fixed to one side of the rectangular cover plate.

[0014] As a preferred technical solution of the utility model, a liquid level meter is installed and connected to the side wall of the solvent absorption tank.

[0015] The utility model has the following beneficial effects:

[0016] 1. The U-shaped structure and internal partition baffle design of the solvent absorption tank of the utility model, combined with the use of a stirring plate and a water-spraying filler, can effectively increase the contact area between the organic gas and the solvent and improve the solvent absorption efficiency.

[0017] 2. The utility model increases the absorption recovery rate of organic waste gas by continuously arranging multiple solvent absorption tanks, and can dissolve, absorb and recover different types of organic waste gas respectively, thereby improving the efficiency of treating complex organic waste gas.

[0018] 3. The utility model can increase the air outlet filtration area in the three-dimensional space through the design of the adsorption box, especially the rectangular tubes on both sides of the air guide box body and the adsorption filter element installed inside, effectively improve the filtration amount while reducing the air outlet wind speed and noise.

[0019] 4. The utility model has an inlet and outlet liquid pipe fixedly penetrated through the outer wall of the lower end of the solvent absorption tank, and a ball valve is installed thereon, which is convenient for adding or replacing the solvent; a connecting liquid level gauge is installed on the side wall of the solvent absorption tank, which is convenient for real-time understanding of the liquid level of the solvent and ensuring stable operation of the equipment.

[0020] 5. The utility model uses an axial flow fan as the airflow driving power, which has the advantages of low noise and small occupied area compared with the centrifugal fan; the purifier is installed on an installation frame composed of a base plate, a ceiling, etc., which is convenient for transportation and installation of the overall structure.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic diagram of the structure of the utility model industrial waste gas VOC organic waste gas purifier.

[0024] Figure 2 It is a schematic diagram of the structure of the solvent absorption tank group, the arched air duct, the exhaust gas inlet pipe and the water spray filler.

[0025] Figure 3 This is a schematic diagram of the structure of the solvent absorption tank.

[0026] Figure 4 It is a structural schematic diagram of the air guide box.

[0027] Figure 5 A schematic diagram of the cover structure.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1-solvent absorption tank, 2-axial flow fan, 3-adsorption box, 4-arched air guide pipe, 5-exhaust gas inlet pipe, 6-adapter, 7-watering filler, 8-installation frame, 11-partition baffle, 12-motor, 13-stirring plate, 14-rectangular frame, 15-liquid inlet and outlet pipes, 16-ball valve, 31-air guide box body, 32-adsorption filter element, 33-sealing cover, 311-rectangular box body, 312-connector, 313-rectangular tube, 314-L-shaped partition plate, 315-air guide cavity, 316-filter element installation cavity, 317-ventilation hole, 331-rectangular cover plate, 332-first plug, 333-second plug, 81-bottom plate, 82-support vertical plate, 83-fixed column, 84-ceiling. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment one:

[0032] See also Figure 1-5 As shown, the utility model is an industrial waste gas VOC organic waste gas purifier, including a plurality of solvent absorption tanks 1, axial flow fans 2 and adsorption boxes 3 arranged in a linear manner. Two adjacent solvent absorption tanks 1 are connected end to end through arched air ducts 4. A waste gas inlet pipe 5 is also installed on the head solvent absorption tank 1. A second arched air duct 4 is also installed on the tail solvent absorption tank 1, and the air outlet end of the arched air duct 4 is connected to the axial flow fan 2 through an adapter 6. The axial flow fan 2 is connected to the adsorption box 3. The solvent absorption tank group 1 is used to absorb organic gases in sequence to increase the solvent rate of organic waste gas; the axial flow fan 2 is used as the airflow driving power, which has less noise and occupies a smaller area than the centrifugal fan; the adsorption box 3 is used to absorb the remaining undissolved waste gas.

[0033] The axial cross-section of the solvent absorption tank 1 is a U-shaped structure. A partition baffle 11 is fixed to a relative inner wall of the solvent absorption tank 1 from the upper end to the middle and lower part, dividing the interior of the solvent absorption tank 1 into an air inlet side and an air outlet side, and the solvent liquid level in the solvent absorption tank 1 is not lower than the height of the lowest end of the partition baffle 11. A motor 12 is fixed through the side wall of the lower end of the solvent absorption tank 1. The output shaft of the motor 12 passes through the interior of the solvent absorption tank 1, and at least two stirring plates 13 arranged along the axial direction of the motor 12 are fixed on the output shaft of the motor 12. An inclined rectangular frame 14 is fixed to the lower end of the air inlet side of the partition baffle 11 and the relative inner wall of the solvent absorption tank 1. A water sprinkling filler 7 is arranged on the rectangular frame 14. The motor 12 drives the stirring plate 13 to stir reciprocally at the bottom of the solvent absorption tank 1, and the surging solvent enters the water-spraying filler 7. Under the action of gravity and the exhaust gas flow, the solvent flows back to the solvent absorption tank 1 below. During the reflux process, the organic matter contacts the solvent over a large area in the water-spraying filler 7, which effectively increases the contact area between the organic gas and the solvent, and improves the dissolution and absorption efficiency of the organic gas.

[0034] The absorption recovery rate of organic waste gas can be increased by continuously setting up multiple solvent absorption tanks 1. On the other hand, different solvents filled in multiple solvent absorption tanks 1 can dissolve, absorb and recover different types of organic waste gas respectively, which is effective for complex organic waste gas treatment.

[0035] Among them, several solvent absorption tanks 1 and adsorption boxes 3 are installed together on the installation frame 8. The installation frame 8 specifically includes a bottom plate 81 and a ceiling 84. A row of support vertical plates 82 for fixing several solvent absorption tanks 1 is fixed on the bottom plate 81. The adsorption box 3 is fixed on the bottom plate 81. Several fixed columns 83 are fixed on the upper surface of the bottom plate 81. A ceiling 84 is fixed on the upper end of several fixed columns 83. The entire industrial waste gas VOC organic waste gas purifier is installed inside the installation frame 8 to facilitate the transportation and installation of the overall structure.

[0036] The adsorption box 3 includes an air guide box body 31, a plurality of adsorption filter elements 32 and a plurality of covers 33. The air guide box body 31 includes a rectangular box body 311. A connector 312 connected to the axial flow fan 2 is fixed through the upper surface of the rectangular box body 311. A row of rectangular tubes 313 are fixed through the two side surfaces of the rectangular box body 311. An L-shaped partition plate 314 is fixed inside the rectangular tube 313, and the L-shaped partition plate 314 divides the rectangular tube 313 into an air guide chamber 315 and a filter element installation chamber 316. The cover 33 is tightly installed at the ends of the air guide chamber 315 and the filter element installation chamber 316 by bolts. The rectangular tube 313 and the L-shaped partition plate 314 on both sides of the filter element installation chamber 316 are provided with a plurality of ventilation holes 317. The cover 33 includes a rectangular cover plate 331. A first plug 332 and a second plug 333 that cooperate with the air guide cavity 315 and the filter element installation cavity 316 are fixed to one side of the rectangular cover plate 331 .

[0037] A row of inclined rectangular tubes 313 are respectively arranged on both sides of the air guide box 31 of the adsorption box 3 and an adsorption filter element 32 is installed inside, which increases the air outlet filtration area in the three-dimensional space, effectively increases the filterable amount of organic matter, and reduces the air outlet wind speed and noise.

[0038] In order to facilitate timely understanding of the current liquid level of the solvent in the solvent absorption tank 1 , a liquid level meter is installed on the side wall of the solvent absorption tank 1 .

[0039] In order to facilitate the replenishment or replacement of the solvent in the solvent absorption tank 1, an inlet and outlet liquid pipe 15 is fixedly passed through the outer wall of the lower end of the solvent absorption tank 1. A ball valve 16 is installed on the inlet and outlet liquid pipe 15.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An industrial waste gas VOC organic waste gas purifier, characterized by: It comprises a plurality of solvent absorption tanks (1), an axial flow fan (2) and an absorption box (3) arranged in a linear manner; Two adjacent solvent absorption tanks (1) are connected end to end via arched air guide pipes (4); The front solvent absorption tank (1) is also equipped with an exhaust gas inlet pipe (5); the rear solvent absorption tank (1) is also equipped with a second arched air guide pipe (4), and the air outlet end of the arched air guide pipe (4) is connected to the axial flow fan (2) via an adapter (6); the axial flow fan (2) is connected to the adsorption box (3); The axial cross-section of the solvent absorption tank (1) is a U-shaped structure; a partition baffle (11) is fixed to an opposite inner wall of the solvent absorption tank (1) from the upper end to the middle and lower part, dividing the interior of the solvent absorption tank (1) into an air inlet side and an air outlet side; a motor (12) is fixedly passed through the side wall of the lower end of the solvent absorption tank (1); the output shaft of the motor (12) passes through the interior of the solvent absorption tank (1), and at least two stirring plates (13) arranged along the axial direction of the motor (12) are fixedly provided on the output shaft; an inclined rectangular frame (14) is fixedly provided between the lower end of the air inlet side of the partition baffle (11) and the opposite inner wall of the solvent absorption tank (1); a water spray filler (7) is provided on the rectangular frame (14).

2. The industrial waste gas VOC organic waste gas purifier according to claim 1, characterized in that: A plurality of the solvent absorption tanks (1) and the adsorption box (3) are installed together on a mounting frame (8).

3. The industrial waste gas VOC organic waste gas purifier according to claim 2 is characterized in that: The mounting frame (8) comprises a bottom plate (81); a row of supporting upright plates (82) for fixing a plurality of the solvent absorption tanks (1) are fixed on the bottom plate (81); the adsorption box (3) is fixed on the bottom plate (81); a plurality of fixed upright columns (83) are fixed on the upper surface of the bottom plate (81); and a ceiling (84) is fixed on the upper ends of the plurality of fixed upright columns (83).

4. The industrial waste gas VOC organic waste gas purifier according to claim 1, characterized in that: An inlet and outlet liquid pipe (15) is fixedly passed through the outer wall of the lower end of the solvent absorption tank (1); a ball valve (16) is installed on the inlet and outlet liquid pipe (15).

5. The industrial waste gas VOC organic waste gas purifier according to claim 1, characterized in that: The adsorption box (3) comprises an air guide box body (31), a plurality of adsorption filter elements (32) and a plurality of sealing covers (33); the air guide box body (31) comprises a rectangular box body (311); a connector (312) connected to the axial flow fan (2) is fixedly penetrated through the upper surface of the rectangular box body (311); a row of rectangular tubes (313) are respectively fixedly penetrated through the two side surfaces of the rectangular box body (311); an L-shaped partition plate (314) is fixed inside the rectangular tube (313), and the L-shaped partition plate (314) divides the rectangular tube (313) into an air guide cavity (315) and a filter element installation cavity (316); the sealing cover (33) is tightly mounted on the ends of the air guide cavity (315) and the filter element installation cavity (316) by means of bolts; the rectangular tube (313) and the L-shaped partition plate (314) on both sides of the filter element installation cavity (316) are provided with a plurality of ventilation holes (317).

6. The industrial waste gas VOC organic waste gas purifier according to claim 5, characterized in that: The sealing cover (33) comprises a rectangular cover plate (331); a first plug (332) and a second plug (333) which cooperate with the air guide cavity (315) and the filter element installation cavity (316) are fixed to one side of the rectangular cover plate (331).

7. The industrial waste gas VOC organic waste gas purifier according to claim 1, characterized in that: A liquid level meter is installed and connected to the side wall of the solvent absorption tank (1).

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