Waste gas treatment device for anti-corrosion spraying of steel structure

Abstract

The utility model discloses a waste gas treatment device for anti-corrosion spraying of a steel structure, which comprises a purification tank and a gas storage tank, a partition plate is arranged in the purification tank, and the interior of the purification tank is divided into a liquid space and a gas space by the partition plate; a water inlet is formed in the upper part of the liquid space, and a water outlet and a drain outlet are formed in the lower part of the liquid space; an air inlet pipeline and an air suction port are arranged at the top of the purification tank, a connecting pipeline is arranged between the air inlet pipeline and the air suction port, a first axial flow fan is mounted in the connecting pipeline, and an air outlet is formed in the top of the partition plate; a filter layer is arranged at the bottom of the gas space, and an exhaust pipeline is arranged at the bottom, close to the filter layer, of the purification tank and communicates with the gas storage tank; the device is provided with the purification tank and the gas storage tank, the purification tank collects waste gas and carries out primary purification treatment on the waste gas, the treated waste gas enters the gas storage tank to be stored, then further purification treatment is carried out, and harmful ingredients in the waste gas are completely removed.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment equipment, in particular to a waste gas treatment device for anti-corrosion spraying of steel structures. Background Art

[0002] Anti-corrosion spraying is one of the measures to protect steel structures. It is mainly used to prevent steel structures from being damaged by corrosion. In the process of anti-corrosion spraying, a lot of waste gas will be generated. The waste gas contains volatile organic compounds, paint mist particles, etc. These waste gases not only have irritating odors, but also cause harm to human health and the environment. Most of the existing waste gas treatment devices use spraying to purify the waste gas. Spraying can only reduce the content of solid particles in the waste gas, but cannot remove harmful components, and the purification effect is poor. Due to the complex components in the waste gas, the time spent on purifying the waste gas must be greater than the time spent on collecting the waste gas. The treatment device that collects and purifies at the same time has limited purification capacity and cannot completely remove harmful components in the waste gas. Utility Model Content

[0003] The purpose of the utility model is to provide an exhaust gas treatment device for anti-corrosion spraying of steel structures. The device is provided with a purification tank and a gas storage tank. The purification tank collects the exhaust gas and performs preliminary purification treatment on the exhaust gas. The treated exhaust gas enters the gas storage tank for storage, and is subsequently further purified to completely remove harmful components in the exhaust gas.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a waste gas treatment device for anti-corrosion spraying of steel structure, comprising a purification tank and a gas storage tank, a partition is arranged in the purification tank, and the partition divides the interior of the purification tank into a liquid space and a gas space; purified water is contained in the liquid space, a water inlet is arranged at the upper part of the liquid space, a water outlet and a sewage outlet are arranged at the lower part of the liquid space, and the sewage outlet is located below the water outlet; an air inlet pipe and an air suction port are arranged at the top of the purification tank, a connecting pipe is arranged between the air inlet pipe and the air suction port, a first axial flow fan is installed in the connecting pipe, the bottom end of the air inlet pipe passes through the purification tank and the partition and is arranged in the purified water, and an air outlet is arranged on the top of the partition; a filter layer is arranged at the bottom of the gas space, an exhaust pipe is arranged at the bottom of the purification tank close to the filter layer, and the exhaust pipe is connected to the gas storage tank.

[0005] Optionally, the air intake port comprises an air intake duct, the top of the air intake duct is an open structure, and a plurality of air intake branches are evenly connected to the outside of the air intake duct.

[0006] Optionally, trumpet-shaped air collecting hoods are installed on the top of the air intake duct and the end of the air intake branch pipe.

[0007] Optionally, a filter is installed on the gas collecting hood.

[0008] Optionally, the filter medium in the filter layer is activated carbon.

[0009] Optionally, a second axial flow fan is installed in the exhaust duct.

[0010] The waste gas treatment device for anti-corrosion spraying of steel structures of the utility model has the following advantages:

[0011] (1) The purification tank can collect and preliminarily purify the exhaust gas, reduce the time the exhaust gas is exposed to the environment, preliminarily reduce the harmful components in the exhaust gas, and then concentrate the exhaust gas in the gas storage tank, waiting for further purification treatment.

[0012] (2) Multiple pipes at the air intake can improve the device's ability to collect exhaust gas.

[0013] (3) The second axial flow fan can prevent the waste gas from accumulating in the gas space and promptly draw the waste gas into the gas storage tank for storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure numbers: 1. purification tank; 2. gas storage tank; 3. partition; 4. liquid space; 5. gas space; 6. purified water; 7. water inlet; 8. water outlet; 9. sewage outlet; 10. air inlet pipe; 11. air suction pipe; 12. air suction branch pipe; 13. air collecting hood; 14. connecting pipe; 15. axial flow fan; 16. air outlet; 17. filter layer; 18. activated carbon; 19. exhaust pipe; 20. second axial flow fan. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] like Figure 1 As shown, an exhaust gas treatment device for anti-corrosion spraying of steel structures includes a purification tank 1 and a gas storage tank 2. A partition 3 is provided in the purification tank 1, and the partition 3 divides the interior of the purification tank 1 into a liquid space 4 and a gas space 5. The liquid space 4 contains purified water 6, and a water inlet 7 is provided at the upper part of the liquid space 4 for replenishing water into the liquid space 4. A water outlet 8 and a sewage outlet 9 are provided at the lower part of the liquid space 4. The sewage outlet 9 is located below the water outlet 8. The water outlet 8 is used to discharge sewage in the liquid space 4, and the sewage outlet 9 is used to discharge impurities at the bottom of the liquid space 4.

[0018] The top of the purification tank 1 is provided with an air intake pipe 10 and an air intake port, the air intake port includes an air intake pipe 11, the top of the air intake pipe 11 is an open structure, and the outside of the air intake pipe 11 is evenly connected with a plurality of air intake branches 12, and the top of the air intake pipe 11 and the end of the air intake branch 12 are both installed with a trumpet-shaped air collecting hood 13, and multiple air intake branches 12 and the air collecting hood 13 can improve the ability of the device to collect waste gas and reduce the time that the waste gas is exposed to the environment. The air collecting hood 13 is installed with a filter to filter large volume impurities in the environment to avoid being sucked into the device. A connecting pipe 14 is provided between the air intake pipe 10 and the air intake pipe 11, and a first axial flow fan 15 is installed in the connecting pipe 14. The bottom end of the air intake pipe 10 passes through the purification tank 1 and the partition 3 and is arranged in the purified water 6. The top of the partition 3 is provided with an air outlet 16, and the axial flow fan sucks the waste gas into the liquid space 4, and after the initial treatment of the purified water 6, it is discharged into the gas space 5 from the air outlet 16.

[0019] A filter layer 17 is provided at the bottom of the gas space 5. The filter medium in the filter layer 17 adopts activated carbon 18, which can absorb moisture and some organic compounds in the exhaust gas and preliminarily purify the exhaust gas. An exhaust pipe 19 is provided at the bottom of the purification tank 1 near the filter layer 17. The exhaust pipe 19 is connected to the gas storage tank 2. A second axial flow fan 20 is installed in the exhaust pipe 19, which can draw the preliminarily treated exhaust gas into the gas storage tank 2 for storage.

[0020] The working process of the waste gas treatment device is as follows: the first axial flow fan 15 is running, which can suck the spraying waste gas in the environment into the liquid space 4. After the waste gas enters the purified water 6, some components combine with the purified water 6, dissolve in the purified water 6 or settle at the bottom of the purified water 6, and the remaining waste gas enters the gas space 5 from the gas outlet 16. The second axial flow fan 20 is running, which can draw the waste gas in the gas space 5 into the gas storage tank 2. In this process, the waste gas will pass through the filter layer 17, and the activated carbon 18 in the filter layer 17 absorbs the moisture and some organic compounds in the waste gas, and performs preliminary purification treatment on the waste gas. The waste gas after preliminary treatment is stored in the gas storage tank 2. When the waste gas inventory reaches a certain level, it is transported to other purification equipment for further purification treatment, and all harmful components in the waste gas are removed and then discharged. The purification tank 1 can collect waste gas in time and perform preliminary purification treatment on the waste gas, reduce the time the waste gas is exposed to the environment, improve the working environment, preliminarily reduce the harmful components in the waste gas, reduce the difficulty of subsequent purification treatment, and improve the quality and efficiency of waste gas treatment.

[0021] The embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the utility model.

Claims

1. An exhaust gas treatment device for anti-corrosion spraying of steel structures, characterized in that: It includes a purification tank and a gas storage tank. A partition is arranged in the purification tank, and the partition divides the interior of the purification tank into a liquid space and a gas space. Purified water is contained in the liquid space, and a water inlet is arranged at the upper part of the liquid space, and a water outlet and a sewage outlet are arranged at the lower part of the liquid space, and the sewage outlet is located below the water outlet. An air inlet pipe and an air suction port are arranged on the top of the purification tank, and a connecting pipe is arranged between the air inlet pipe and the air suction port. A first axial flow fan is installed in the connecting pipe, and the bottom end of the air inlet pipe passes through the purification tank and the partition and is arranged in the purified water, and an air outlet is arranged on the top of the partition. A filter layer is arranged at the bottom of the gas space, and an exhaust pipe is arranged at the bottom of the purification tank close to the filter layer, and the exhaust pipe is connected with the gas storage tank.

2. The exhaust gas treatment device for anti-corrosion spraying of steel structures according to claim 1, characterized in that: The air intake port comprises an air intake duct, the top of which is an open structure, and the outer side of the air intake duct is evenly connected with a plurality of air intake branches.

3. The exhaust gas treatment device for anti-corrosion spraying of steel structures according to claim 2, characterized in that: The top of the air intake duct and the end of the air intake branch pipe are both equipped with trumpet-shaped air collecting hoods.

4. The exhaust gas treatment device for anti-corrosion spraying of steel structures as claimed in claim 3, characterized in that: A filter is installed on the gas collection hood.

5. The exhaust gas treatment device for anti-corrosion spraying of steel structures according to claim 1, characterized in that: The filter medium in the filter layer is activated carbon.

6. The exhaust gas treatment device for anti-corrosion spraying of steel structures according to claim 1, characterized in that: A second axial flow fan is installed in the exhaust duct.

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