Waste gas microbiological treatment equipment

Abstract

The utility model provides waste gas microbiological treatment equipment. The waste gas microbiological treatment equipment comprises a box body, an exhaust fan, a clear water spraying head and a liquid medicine spraying head, a pre-washing filter tank, a biological filter tank and a dehumidification tank are arranged in the box body; a waste gas inlet port is formed in the top of the pre-washing filter tank; the pre-washing filter tank is communicated with the biological filter tank through a first air duct; the biological filter tank is communicated with the dehumidification tank through a second air duct; a third air duct is arranged at the bottom of the dehumidification pool; the pre-washing filter tank is filled with first plastic hollow balls; the biological filter is filled with second plastic hollow balls; the dehumidification pool is filled with a plastic filler; the clean water spraying head is arranged at the upper part of the pre-washing filter tank; the liquid medicine spraying head is arranged at the upper part of the biological filter; the exhaust fan is arranged on one side of the box body and is connected with the third air duct; according to the design, the occupied space is small, and gas can be fully degraded and filtered.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a waste gas microbial treatment device. Background Technology

[0002] With rapid industrialization, industries such as chemical engineering, pharmaceuticals, food processing, and wastewater treatment emit organic and some inorganic waste gases (such as NH3 and H2S) during production processes, causing serious harm to the environment and human health. Traditional waste gas treatment methods mainly include physical adsorption, chemical scrubbing, and combustion. However, these methods generally suffer from the following problems:

[0003] High cost: Physical adsorption requires regular replacement of the adsorbent, chemical washing requires a large amount of chemical reagents, and combustion requires high temperature conditions and high energy consumption.

[0004] Secondary pollution: Chemical washing may produce waste liquid, and combustion methods may generate harmful byproducts (such as dioxins). Improper handling can easily cause secondary pollution.

[0005] Limited applicability: Traditional methods are less efficient at treating low-concentration waste gas and are difficult to remove multiple pollutants simultaneously and efficiently.

[0006] Microbial waste gas treatment technology is gaining increasing attention due to its advantages such as low cost, low energy consumption, and minimal secondary pollution. Existing microbial treatment equipment typically employs biofilters or biotrickling filters, but these have the following shortcomings:

[0007] Dispersed structure: The pre-washing, biodegradation and dehumidification units are mostly designed separately, which takes up a large area and is inconvenient to manage.

[0008] Insufficient microbial activity: The nutrient supply and humidity control of the microbial filter layer in traditional equipment are uneven, resulting in unstable degradation efficiency.

[0009] Poor dehumidification effect: Water mist in the exhaust gas is easily released with the airflow, affecting the operation of subsequent equipment and emission standards.

[0010] To address the aforementioned issues, there is an urgent need to develop an integrated, efficient, and easy-to-manage microbial waste gas treatment device to improve waste gas treatment efficiency, reduce operating costs, and minimize the risk of secondary pollution. Utility Model Content

[0011] The purpose of this invention is to provide a waste gas microbial treatment device to solve the problems mentioned in the background art.

[0012] To achieve the above objectives, this utility model provides the following technical solution:

[0013] A waste gas microbial treatment device includes a housing, an exhaust fan, a clean water spray head, and a chemical spray head. The housing contains a pre-wash filter, a biological filter, and a dehumidification tank. The top of the pre-wash filter has a waste gas inlet. The pre-wash filter and the biological filter are connected via a first air duct. The biological filter and the dehumidification tank are connected via a second air duct. The bottom of the dehumidification tank has a third air duct. The pre-wash filter is filled with a first hollow plastic sphere. The biological filter is filled with a second hollow plastic sphere. The dehumidification tank is filled with plastic filler. The clean water spray head is located on the upper part of the pre-wash filter. The chemical spray head is located on the upper part of the biological filter. The exhaust fan is located on one side of the housing and connected to the third air duct.

[0014] Further description of this utility model: a support plate, a left partition, and a right partition are installed inside the housing; the support plate is horizontally installed inside the housing; a plurality of filter holes are distributed on the support plate; the left partition is vertically fixed to the left side of the housing, the lower end of the left partition is connected to the bottom of the housing, and an opening is reserved between the upper end and the top of the housing; the right partition is vertically fixed to the right side of the housing; the upper end of the right partition is connected to the top of the housing, and the lower end is connected to the support plate; a pre-washing filter tank is located above the support plate on the right side of the right partition; a biological filter tank is located above the support plate between the right and left partitions; a dehumidification tank is located above the support plate on the left side of the left partition; a first air duct is located below the support plate on the right side of the left partition; a second air duct is formed above the left partition; and a third air duct is located below the support plate on the left side of the left partition.

[0015] In a further description of this utility model, a drain outlet is provided on one side of the housing corresponding to the second air duct; a plug is installed on the drain outlet.

[0016] In a further description of this utility model, the clean water spray head is connected to a first spray water pump outside the housing via a first pipe; the medicine spray head is connected to a second spray water pump outside the housing via a second pipe.

[0017] The beneficial effects of this utility model are as follows:

[0018] This design integrates the pre-washing filter, biological filter, and dehumidification tank into a single enclosure. A first, second, and third air duct connect the pre-washing filter, biological filter, and dehumidification tank sequentially. An exhaust fan connected to the third air duct draws in gas, while exhaust gas is introduced through the exhaust inlet and passes through the pre-washing filter, biological filter, and dehumidification tank before being discharged. This integrated design features a rational overall layout, a small footprint, and convenient management.

[0019] In the pre-washing tank, the first type of hollow plastic spheres are filled with water. Their large surface area creates a large adsorption surface, and a water spray nozzle above sprays clean water to wash away large particles in the exhaust gas, aiding in the adsorption and degradation effect of microorganisms. In the biological filter tank, a second type of hollow plastic spheres are filled with water. Their large surface area effectively creates a microbial filtration surface, adsorbing and degrading more exhaust gas. A chemical spray nozzle above sprays chemical solutions, ensuring sufficient activity of the microorganisms and providing ample nutrients. In the dehumidification tank, plastic packing is used to block water mist blown away by the wind, effectively purifying the emitted gas. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the present invention. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] like Figure 1 As shown, a waste gas microbial treatment device includes a housing 1, an exhaust fan 2, a clean water spray head 3, and a chemical spray head 4. The housing 1 contains a pre-wash filter 01, a biological filter 02, and a dehumidification tank 03. The top of the pre-wash filter 01 has a waste gas inlet 011 for connecting to a waste gas pipe to supply waste gas. The pre-wash filter 01 and the biological filter 02 are connected by a first air duct 04; the biological filter 02 and the dehumidification tank 03 are connected by a second air duct. 05 is connected; the dehumidification tank 03 is provided with a third air duct 06 at the bottom; the pre-wash filter tank 01 is filled with a first hollow plastic ball 012; the biological filter tank 02 is filled with a second hollow plastic ball 021; the dehumidification tank 03 is filled with plastic filler 031; the clean water spray head 3 is located on the upper part of the pre-wash filter tank 01; the chemical spray head 4 is located on the upper part of the biological filter tank 02; the exhaust fan 2 is located on one side of the housing 1 and connected to the third air duct 06;

[0023] This design integrates the pre-washing filter 01, biological filter 02, and dehumidification tank 03 into the housing 1. A first air duct 04, a second air duct 05, and a third air duct 06 are set to connect the pre-washing filter 01, biological filter 02, and dehumidification tank 03 in sequence. The exhaust fan 2 is connected to the third air duct 06 to extract gas. The exhaust gas is sent in from the exhaust gas inlet 011 and passes through the pre-washing filter 01, biological filter 02, and dehumidification tank 03 in sequence before being discharged. The integrated design has a reasonable overall layout, occupies a small area, and is convenient for management.

[0024] In the pre-washing tank, the first hollow plastic sphere 012 is filled with a large surface area, which can generate a large adsorption area. A clean water spray head 3 is installed above to spray clean water, which can wash away large particles in the exhaust gas and help the microorganisms adsorb and degrade them. In the biological filter tank 02, the second hollow plastic sphere 021 is filled with a large surface area, which can effectively generate a microbial filter surface, adsorbing and degrading more exhaust gas. A chemical spray head 4 is installed above to spray chemical water, ensuring that the microorganisms have sufficient activity and providing sufficient nutrients. In the dehumidification tank 03, plastic packing material 031 is filled to block water mist blown away by the wind, effectively purifying the exhaust gas.

[0025] The housing 1 is equipped with a support plate 11, a left partition 12, and a right partition 13. The support plate 11 is horizontally installed inside the housing 1 and has several filter holes. The left partition 12 is vertically fixed to the left side of the housing 1, with its lower end connected to the bottom of the housing 1 and its upper end having an opening between it and the top of the housing 1. The right partition 13 is vertically fixed to the right side of the housing 1, with its upper end connected to the top of the housing 1 and its lower end connected to the support plate 11. The right side of the right partition 13, above the support plate 11, is a pre-wash filter tank 01. The area between the right partition 13 and the left partition 12, above the support plate 11, is... The structure consists of a biological filter 02; a dehumidification tank 03 is located above the support plate 11 on the left side of the left partition 12; a first air duct 04 is located below the support plate 11 on the right side of the left partition 12; a second air duct 05 is formed above the left partition 12; and a third air duct 06 is located below the support plate 11 on the left side of the left partition 12. The structure of each tank and air duct is formed by the support plate 11, the left partition 12, and the right partition 13. The structure is simple and the cost is low. When the exhaust fan 2 is working, the exhaust gas enters the pre-wash filter 01 from the exhaust gas inlet 011, and then passes through the first air duct 04, the biological filter 02, the second air duct 05, the dehumidification tank 03, and the third air duct 06 in sequence before being discharged.

[0026] The box 1 is provided with a drain outlet 051 on one side corresponding to the second air duct 05; a plug is installed on the drain outlet 051. After the plug is removed, the water falling into the pre-wash filter tank 01 and the biological filter tank 02 can be discharged through the drain outlet 051.

[0027] The clean water spray head 3 is connected to the first spray water pump 31 outside the box 1 through the first pipe; the medicine spray head 4 is connected to the second spray water pump 41 outside the box 1 through the second pipe.

[0028] The above description is not intended to limit the technical scope of this invention. Any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this invention shall still fall within the scope of the technical solution of this invention.

Claims

1. A waste gas microbial treatment device, characterized in that: The device includes a housing, an exhaust fan, clean water spray heads, and chemical spray heads. The housing contains a pre-wash filter, a biological filter, and a dehumidification tank. The pre-wash filter has an exhaust gas inlet at its top. The pre-wash filter and the biological filter are connected via a first air duct. The biological filter and the dehumidification tank are connected via a second air duct. The dehumidification tank has a third air duct at its bottom. The pre-wash filter is filled with a first hollow plastic sphere. The biological filter is filled with a second hollow plastic sphere. The dehumidification tank is filled with plastic packing material. The clean water spray heads are located on the upper part of the pre-wash filter. The chemical spray heads are located on the upper part of the biological filter. The exhaust fan is located on one side of the housing and connected to the third air duct.

2. The waste gas microbial treatment equipment according to claim 1, characterized in that: The housing contains a support plate, a left partition, and a right partition. The support plate is horizontally installed within the housing and has several filter holes. The left partition is vertically fixed to the left side of the housing, with its lower end connected to the bottom of the housing and its upper end having an opening between it and the top of the housing. The right partition is vertically fixed to the right side of the housing, with its upper end connected to the top of the housing and its lower end connected to the support plate. A pre-washing filter is located above the support plate on the right side of the right partition. A biological filter is located between the right and left partitions above the support plate. A dehumidification tank is located above the support plate on the left side of the left partition. A first air duct is located below the support plate on the right side of the left partition. A second air duct is formed above the left partition. A third air duct is located below the support plate on the left side of the left partition.

3. The waste gas microbial treatment equipment according to claim 2, characterized in that: A drain outlet is provided on one side of the housing corresponding to the second air duct; a plug is installed on the drain outlet.

4. The waste gas microbial treatment equipment according to claim 1, characterized in that: The clean water spray head is connected to a first spray water pump outside the box via a first pipe; the medicine spray head is connected to a second spray water pump outside the box via a second pipe.

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