Workshop waste gas filtering absorption tower device

Abstract

A workshop waste gas filtering absorption tower device comprises a tower body and a tower bottom, an air inlet is formed in the tower bottom, and a first filler layer, a first spraying assembly, a second filler layer, a second spraying assembly, a demisting layer and an air outlet are arranged from the bottom to the top of the tower body; the demisting layer comprises a wire mesh demister and a filler demisting part, the wire mesh demister is positioned below the filler demisting part, and an induced draft fan is arranged at an air outlet. The acid-containing and alkali-containing waste gas is fed from the bottom of the tower, is distributed by the gas distribution device, continuously passes through gaps of the filler layer in a countercurrent manner with the washing liquid, and is in close contact with the washing liquid on the surface of the filler for mass transfer, so that the equipment is very practical in effect for the acid-containing and alkali-containing waste gas and macromolecular substances which can be dissolved in water; the contact area is increased by spraying the washing liquid, the acid-containing and alkali-containing waste gas is absorbed and filtered by utilizing the characteristic that the washing liquid can be dissolved in water, the operation and maintenance are efficient, and compared with ozone filtration, infrared ultraviolet filtration, membrane permeation and other technologies, the method is simpler, more efficient and low in cost.

Description

Technical Field

[0001] The utility model specifically relates to a workshop waste gas filtering and absorbing tower device. Background Art

[0002] A large amount of acidic and alkaline waste gas will be generated during the product processing in the workshop. The traditional ozone filtration, infrared and ultraviolet filtration, membrane permeation and other technologies have high operation and maintenance costs. They are unable to treat the macromolecular substances in these acidic and alkaline waste gases with washing liquids, and cannot simultaneously have the functions of washing liquid atomization and filler filtration and absorption. They are of poor practicality and have high waste gas filtration and absorption costs. Utility Model Content

[0003] In view of the above, the utility model provides a workshop waste gas filtering and absorbing tower device to solve the problems raised in the above background technology.

[0004] The utility model solves the technical problem by adopting the following technical solution: a workshop waste gas filtering absorption tower device is provided, including a device body, the device body includes a tower body and a tower bottom, the tower bottom is provided with an air inlet, and a first packing layer, a first spray assembly, a second packing layer, a second spray assembly, a demisting layer and an air outlet are respectively arranged from the bottom to the top of the tower body, the first packing layer includes a first packing support plate and a first packing pressure plate, a plurality of packings are placed between the first packing support plate and the first packing pressure plate, and the packings are compacted; the first spray assembly includes a first spray pipe, a plurality of first spray heads, a plurality of the first spray pipes, a plurality of the first spray heads ... packing layers, a first packing layer, a first packing support plate and a first packing pressure plate, a plurality of the first packing layers, a first packing layer, a first packing support plate and a first packing pressure plate, a plurality of the first packing layers, a first packing layer, a first packing layer, a first packing The first spray head is connected to the first spray pipe in a transverse distribution, and the first spray head is downward facing the first packing layer; the second packing layer includes a second packing support plate and a second packing pressure plate, and a plurality of packings are placed between the second packing support plate and the second packing pressure plate, and the packings are compacted; the second spray assembly includes a second spray pipe and a plurality of second spray heads, and a plurality of second spray heads are connected to the second spray pipe in a transverse distribution, and the second spray heads are downward facing the second packing layer; the demisting layer includes a wire mesh demister and a packing demisting part, the wire mesh demister is located below the packing demisting part, and an induced draft fan is arranged at the air outlet.

[0005] Furthermore, the filler is a hollow filler ball with a diameter of 4 cm, and the ball serves as a mass transfer unit of the gas-liquid two-phase contact component.

[0006] Furthermore, a plurality of air holes are distributed on the first filler support plate and the second filler support plate.

[0007] Furthermore, the diameter of the air pores is smaller than the diameter of the hollow filler balls.

[0008] Furthermore, an insertion port is provided at the contact point between the tower body and the first packing pressure plate and the second packing pressure plate, so as to allow the first packing pressure plate and the second packing pressure plate to be detachably installed.

[0009] Furthermore, a sealing rubber pad is provided at the insertion port.

[0010] Furthermore, the first filler pressing plate and the second filler pressing plate are provided with a plurality of water seepage holes for spraying water to seep into the filler.

[0011] Furthermore, a gas distribution device is also provided at the bottom of the tower, the inlet end of the gas distribution device is connected to the air inlet, and the outlet end of the gas distribution device faces the first packing layer.

[0012] Furthermore, the inlet end of the first spray pipe is connected to an alkaline washing liquid tank.

[0013] Furthermore, the inlet end of the second spray pipe is connected to an acidic washing liquid tank.

[0014] The utility model relates to a workshop waste gas filtering and absorption tower device. The waste gas containing acid and alkali is fed into the tower from the bottom. After being distributed by a gas distribution device, the waste gas containing acid and alkali continuously passes through the gaps of the packing layer in countercurrent with the washing liquid. On the surface of the packing, the waste gas containing acid and alkali and the washing liquid are in close contact with each other for mass transfer. For waste gas containing acid and alkali and macromolecular substances soluble in water, this equipment is very practical. The washing liquid spray increases the contact area. The waste gas containing acid and alkali is absorbed and filtered out by utilizing the property of being soluble in water. The operation and maintenance are efficient. Compared with technologies such as ozone filtration, infrared and ultraviolet filtration, and membrane permeation, the equipment is simpler, more efficient, and has low cost. It has the advantages of large production capacity, high separation efficiency, small pressure drop, small liquid holdup, and large operational flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the structure of the first packing layer and the second packing layer.

[0017] Figure 3 It is an assembly diagram of the first packing pressure plate and the second packing pressure plate being installed through the insertion port.

[0018] Figure 4 It is a top view of the utility model.

[0019] In the figure, 1. device body; 2. air inlet; 3. gas distribution device; 4. first packing layer; 401. first packing support plate; 402. first packing pressure plate; 5. first spray pipe; 6. first spray head; 7. alkaline washing liquid tank; 8. second packing layer; 801. second packing support plate; 802. second packing pressure plate; 9. insertion port; 10. second spray pipe; 11. second spray head; 12. acid washing liquid tank; 13. wire mesh demister; 14. packing demister part; 15. induced draft fan; 16. air outlet; 17. air vent; 18. water seepage hole. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and some implementation methods.

[0021] exist Figure 1-Figure 4 In the invention, a workshop waste gas filtering and absorbing tower device is provided, comprising a device body 1, the device body 1 comprises a tower body and a tower bottom, the tower bottom is provided with an air inlet 2, and a first packing layer 4, a first spray assembly, a second packing layer 8, a second spray assembly, a demisting layer and an air outlet 16 are respectively arranged from the bottom to the top of the tower body, the first packing layer 4 comprises a first packing support plate 401 and a first packing pressure plate 402, a plurality of packings are placed between the first packing support plate 401 and the first packing pressure plate 402, and the packings are compacted; the first spray assembly comprises a first spray pipe 5 and a plurality of first spray heads 6, a plurality of the first spray heads 6 are laterally distributed and connected to the first spray pipe 5, and the first spray heads 6 face downward to the first packing layer 4; the second packing layer 8 comprises a second packing support plate 801 and a second packing pressure plate 802, a plurality of packings are placed between the second packing support plate 801 and the second packing pressure plate 802 and compact the filler; the second spray assembly includes a second spray pipe 10 and a plurality of second spray heads 11, and the plurality of second spray heads 11 are laterally distributed and connected to the second spray pipe 10, and the second spray heads 11 face downward to the second filler layer 8; when in use, the acid- and alkali-containing waste gas is fed in from the air inlet 2 at the bottom of the tower, and after being distributed by the gas distribution device 3, it passes through the first filler layer 4, the first spray assembly, the second filler layer 8, and the second spray assembly in sequence for waste gas treatment, and the first spray assembly and the second spray assembly spray out alkaline and acidic washing liquids, and the alkaline and acidic washing liquids are countercurrently continuously passed through the filler gaps of the first filler layer 4 and the second filler layer 8, and on the filler surface, the acid- and alkali-containing waste gas and the washing liquid are in close contact for mass transfer, and for acid- and alkali-containing waste gas and macromolecular substances that are soluble in water, this equipment is very practical, and the washing liquid spray increases the contact area, and utilizes the characteristics of being soluble in water to absorb and filter out the acid- and alkali-containing waste gas, and the operation and maintenance are efficient.

[0022] In this embodiment, the demisting layer includes a wire mesh demister 13 and a packing demisting part 14. The wire mesh demister 13 is located below the packing demisting part 14, and an induced draft fan 15 is provided at the air outlet 16. The exhaust gas is filtered and absorbed by the first packing layer 4, the first spray assembly, the second packing layer 8, and the second spray assembly in sequence, and finally defogs through the wire mesh demister 13 and the packing demisting part 14, and then discharged from the air outlet 16. The induced draft fan 15 plays a function of guiding the exhaust gas to pass through the first packing layer 4, the first spray assembly, the second packing layer 8, and the second spray assembly in sequence for filtration and absorption.

[0023] In this embodiment, the filler is a hollow filler ball with a diameter of 4 cm, and the ball serves as a mass transfer unit of the gas-liquid two-phase contact component; the hollow filler ball includes granular activated carbon, which plays a role in filtering and absorbing exhaust gas.

[0024] In this embodiment, a plurality of air holes 17 are distributed on the first filler support plate 401 and the second filler support plate 801; the air holes 17 facilitate the exhaust gas to be filtered and absorbed through the first filler layer 4, the first spray assembly, the second filler layer 8, and the second spray assembly in sequence.

[0025] In this embodiment, the diameter of the air holes 17 is smaller than the diameter of the hollow filler balls, so that the hollow filler balls are accumulated in the first filler layer 4 and the second filler layer 8 to prevent the fillers from being blown by the rising airflow.

[0026] In this embodiment, an insertion port 9 is provided at the contact point between the tower body and the first filling platen 402 and the second filling platen 802 for detachable installation of the first filling platen 402 and the second filling platen 802; the insertion port 9 facilitates the replacement and installation of the first filling platen 402 and the second filling platen 802.

[0027] In this embodiment, a sealing rubber pad is provided at the insertion port 9 to prevent exhaust gas from leaking from the insertion port 9 .

[0028] In this embodiment, a plurality of seepage holes 18 are provided on the first packing plate 402 and the second packing plate 802 for spraying water to penetrate into the packing; the first spray assembly and the second spray assembly spray out alkaline and acidic washing liquids, which penetrate into the packing gaps of the first packing layer 4 and the second packing layer 8 through the seepage holes 18, and on the surface of the packing, the acidic and alkaline waste gas and the washing liquid are in close contact for mass transfer, and the acidic and alkaline waste gas and the macromolecular substances soluble in water are absorbed.

[0029] In this embodiment, a gas distribution device 3 is also provided at the bottom of the tower, the inlet end of the gas distribution device 3 is connected to the air inlet 2, and the outlet end of the gas distribution device 3 is toward the first packing layer 4; the acid- and alkali-containing waste gas is introduced from the air inlet 2 at the bottom of the tower, and after being distributed by the gas distribution device 3, it passes through the first packing layer 4, the first spray assembly, the second packing layer 8, and the second spray assembly in sequence for waste gas treatment.

[0030] In this embodiment, the inlet end of the first spray pipe 5 is connected to the alkaline washing liquid tank 7; the alkaline washing liquid is first sprayed out to neutralize the acid-containing substances in the exhaust gas.

[0031] In this embodiment, the inlet end of the second spray pipe 10 is connected to the acidic washing liquid tank 12; the acidic washing liquid is sprayed to neutralize the alkaline substances in the exhaust gas.

[0032] During the specific implementation of the utility model: during use, the acid- and alkali-containing waste gas is introduced from the air inlet 2 at the bottom of the tower, and after being distributed by the gas distribution device 3, it passes through the first packing layer 4, the first spray assembly, the second packing layer 8, and the second spray assembly in sequence for waste gas treatment. The first spray assembly and the second spray assembly spray out alkaline and acidic washing liquids, and the alkaline and acidic washing liquids penetrate into the packing gaps of the first packing layer 4 and the second packing layer 8 through the seepage holes 18. On the surface of the packing, the acid- and alkali-containing waste gas and the washing liquid are in close contact with each other for mass transfer, and the acid- and alkali-containing waste gas and the macromolecular substances soluble in water are absorbed, and finally defogged by the wire mesh demister 13 and the packing demister 14, and then discharged from the air outlet 16, and the washing liquid spray increases the contact area, and utilizes the characteristic of being soluble in water to absorb and filter out the acid- and alkali-containing waste gas, with efficient operation and maintenance and low manufacturing cost.

[0033] It is worth noting that: in the description of the present utility model, the meaning of "multiple" is two or more than two, unless otherwise clearly defined. In the present utility model, unless otherwise clearly defined and defined, the terms "install", "connect", "connect", "fix" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A workshop waste gas filtering and absorption tower device, characterized in that: The device comprises a main body, the main body comprises a tower body and a tower bottom, the tower bottom is provided with an air inlet, and a first packing layer, a first spray assembly, a second packing layer, a second spray assembly, a demisting layer and an air outlet are respectively arranged from the bottom to the top of the tower body, the first packing layer comprises a first packing support plate and a first packing pressure plate, a plurality of packings are placed between the first packing support plate and the first packing pressure plate, and the packings are compacted; the first spray assembly comprises a first spray pipe and a plurality of first spray heads, the plurality of the first spray heads are laterally distributed and connected to the first spray pipe, and the first spray heads face downward to the first packing layer; The second packing layer includes a second packing support plate and a second packing pressure plate, and a plurality of packings are placed between the second packing support plate and the second packing pressure plate, and the packings are compacted; the second spray assembly includes a second spray pipe and a plurality of second spray heads, and the plurality of second spray heads are laterally distributed and connected to the second spray pipe, and the second spray heads face downward to the second packing layer; The demisting layer comprises a wire mesh demisting device and a packing demisting portion. The wire mesh demisting device is located below the packing demisting portion, and an induced draft fan is arranged at the air outlet.

2. A workshop waste gas filtering and absorption tower device according to claim 1, characterized in that: The filler is a hollow filler ball with a diameter of 4 cm, and the ball serves as a mass transfer unit of the gas-liquid two-phase contact component.

3. A workshop waste gas filtering and absorption tower device according to claim 2, characterized in that: A plurality of air holes are distributed on the first filler support plate and the second filler support plate.

4. A workshop waste gas filtering and absorption tower device according to claim 3, characterized in that: The diameter of the air-permeable hole is smaller than the diameter of the hollow filler ball.

5. The workshop waste gas filtering and absorbing tower device according to claim 1 is characterized in that: An insertion port is provided at the contact position between the tower body and the first packing pressure plate and the second packing pressure plate, so as to allow the first packing pressure plate and the second packing pressure plate to be detachably installed.

6. A workshop waste gas filtering and absorption tower device according to claim 5, characterized in that: A sealing rubber pad is arranged at the insertion port.

7. A workshop waste gas filtering and absorption tower device according to claim 5, characterized in that: The first filler pressing plate and the second filler pressing plate are provided with a plurality of water seepage holes for spraying water to seep into the filler.

8. The workshop waste gas filtering and absorption tower device according to claim 1 is characterized in that: The tower bottom is also provided with a gas distribution device, the inlet end of the gas distribution device is connected to the air inlet, and the outlet end of the gas distribution device faces the first packing layer.

9. The workshop waste gas filtering and absorbing tower device according to claim 1, characterized in that: The inlet end of the first spray pipe is connected to the alkaline washing liquid tank.

10. The workshop waste gas filtering and absorbing tower device according to claim 1, characterized in that: The inlet end of the second spray pipe is connected to the acidic cleaning liquid tank.

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