CN220071250U - Biological trickling filter integrated device for treating organic waste gas - Google Patents

Abstract

The utility model relates to an integrated biological trickling filter tower device for treating organic waste gas. The device includes a biological trickling filter tower, which includes a tower body equipped with a packing layer and a spray device. There is an atomization box on the upper end face of the tower body. There is an atomization device inside the atomization box. There is a mixing box above the atomization box. The atomization box and the mixing box are connected through a porous partition. There is an air inlet on the mixing box. The mixing box is connected with the lower part of the tower body through the first gas pipeline. A gas purification box is also provided on the upper end face of the tower body. An exhaust port is provided on the upper part of the tower body. The exhaust port is connected to the gas purification box through a second gas pipeline. The gas purification box is provided with a gas discharge port. The atomization box, mixing box and gas purification box are all set on the upper end of the tower and integrated together, which greatly reduces the footprint of all devices. After integration, there are porous holes between the atomization box and the mixing box. The partitions are connected, which greatly saves pipelines and makes transfer more convenient.

Description

An integrated biological trickling filter tower device for treating organic waste gas

Technical field

The utility model relates to the technical field of waste gas treatment, and specifically relates to an integrated biological trickling filter tower device for treating organic waste gas.

Background technique

Volatile organic compounds (VOCs) are an important type of atmospheric pollutants and one of the main precursors for the formation of ozone. They can react with nitrogen oxides in the air to form atmospheric pollutants such as ozone and photochemical smog. VOCs not only cause great harm to the atmospheric environment, but also pose a great threat to human health. The management of volatile organic compounds is crucial. At present, the treatment technologies for volatile organic compounds mainly include combustion method, absorption method, condensation method, adsorption method, biological method, etc. Biological law has been relatively mature abroad, and relevant research has also been carried out domestically in recent years. The mechanism of this technology is mainly based on the life activities of microorganisms. This method has many advantages in treating VOCs, such as high efficiency, low operating costs, low maintenance costs, no secondary pollution to the environment, and high safety. There are three most common biological methods for treating volatile organic waste gas: biological filter tank, biological trickling filter tower, and biological scrubber.

At present, the devices that use biotrickling filter towers to treat organic waste gas mainly include towers, spray devices, circulation pumps and other structures. These structures are distributed in series. When the organic waste gas to be treated passes through the pipeline between any two structures, there is a large amount of The waste of pipeline resources and the delay of processing results make the startup time of the device longer. Moreover, the structural distribution of the device is relatively scattered, and a large amount of manpower and time resources are required to transfer the device.

Utility model content

The purpose of this utility model is to provide an integrated biological trickling filter tower device for treating organic waste gas, so as to solve the problems existing in the prior art of large floor space, long pipelines and time-consuming and labor-intensive transfer.

In order to achieve the above purpose, the utility model adopts the following technical solution for a biological trickling filter integrated device for treating organic waste gas: a biological trickling filter integrated device for treating organic waste gas, including a biological trickling filter tower, a biological trickling filter The tower includes a tower body. The tower body is provided with a packing layer and a spray device. An atomization box for storing liquid surfactant is provided on the upper end surface of the tower body. An atomization device is provided in the atomization box. The atomization box A mixing box is provided above. The atomization box and the mixing box are connected through a porous partition so that the atomized liquid can rise and pass into the mixing box. The mixing box is provided with an air inlet for organic waste gas to enter; the mixing box is provided with There is a gas outlet, and the gas outlet is connected to the lower part of the tower body through the first gas pipeline; the upper end surface of the tower body is also provided with a gas purification box for storing organic solvents, and the upper part of the tower body is provided with an exhaust port, and the exhaust port passes through the second gas purification box. The gas pipeline is connected with the gas purification box so that the gas discharged from the discharge port enters the organic solvent in the gas purification box. The gas purification box is provided with a gas discharge port.

An integrated shell is provided on the upper end face of the tower, and a vertical partition is provided inside the integrated shell. The vertical partition horizontally divides the inner cavity of the shell into a first chamber and a second chamber. The first chamber To form the gas purification box, the above-mentioned porous partition is horizontally arranged in the first chamber, and the porous partition divides the first chamber up and down into the upper mixing box and the lower atomization box.

The vertical outer side of the integrated housing is arranged flush with the outer side of the tower body.

The lower part of the tower body is provided with a liquid collection tank. The spray device includes a circulation pump installed in the liquid collection tank. The circulation pump leads the nutrient solution to the top of the filler layer through a spray pipe. The upper end of the spray pipe is provided with a sprinkler head. , the spray pipe is located inside the tower body and passes through the packing layer from bottom to top.

The atomization device includes an ultrasonic transducer sheet arranged at the bottom of the atomization box.

Beneficial effects of the utility model: organic waste gas enters the mixing box, the surfactant in the atomization box is atomized by the atomization device, and the atomized atomized liquid enters the mixing box through the porous partition and is mixed with the organic waste gas. , and then the mixed gas enters the tower through the first gas pipeline. The gas is purified through the packing layer and enters the gas purification box through the exhaust port on the upper part of the tower. The remaining waste gas is absorbed and processed by the organic solvent in the gas purification box. , the treated gas is discharged. The atomization box, mixing box and gas purification box are all set on the upper end surface of the tower body and integrated together. Compared with the existing technology, the footprint of all devices is greatly reduced, and after integration, the atomization box and It is connected to the mixing box through a porous partition, which greatly saves pipelines, saves costs, saves time and effort during transfer, and is more convenient.

Description of drawings

Figure 1 is a schematic structural diagram of an embodiment of a biological trickling filter integrated device for treating organic waste gas according to the present invention;

Figure 2 is a schematic diagram of the internal structure of the biological trickling filter integrated device for treating organic waste gas in Figure 1.

Detailed ways

An embodiment of a biotrickling filter integrated device for treating organic waste gas according to the present invention, as shown in Figures 1 and 2, includes a biotrickling filter tower 16. The biotrickling filter tower includes a tower body, and the tower body is provided with fillers. Layer and spray device, the filler layer includes a porous plate 11 and filler 12 placed on it, and microorganisms are attached to the filler. In this embodiment, the number of filler layers is two and they are spaced apart in the up and down direction. The lower part of the tower body is provided with a liquid collection tank 7. The spray device includes a circulation pump 8 installed in the liquid collection tank. The circulation pump leads the nutrient solution to the top of the uppermost packing layer through the spray pipe 6. The upper end of the spray pipe is provided with a Spray head 4, the spray pipe is located inside the tower body and passes through the packing layer from bottom to top, spraying the nutrient solution downward to provide water and nutrients for the growth of microorganisms.

An atomization box 3 is provided on the upper end of the tower body. The atomization box is used to store liquid surfactant. An atomization device is provided in the atomization box. Specifically, the atomization device includes an ultrasonic exchanger installed at the bottom of the atomization box. Can film. A mixing box 1 is provided above the atomization box. The atomization box and the mixing box are connected through a porous partition 17 so that the atomized liquid after the surfactant is atomized can rise and enter the mixing box through the porous partition. The mixing box is provided with an air inlet 2 for organic waste gas to enter. The organic waste gas enters the mixing box and is mixed with the surfactant atomization liquid. The mixing box is provided with a gas outlet, and the gas outlet is connected to the lower part of the tower body through the first gas pipeline 5. The upper end face of the tower body is also provided with a gas purification box 14 for storing organic solvents. The upper part of the tower body is provided with an exhaust port. The exhaust port is connected to the gas purification box through a second gas pipeline 13 to allow the gas discharged from the exhaust port to enter. Among the organic solvents in the gas purification box, a gas discharge port 15 is provided on the gas purification box.

In this embodiment, an integrated housing 19 is provided on the upper end face of the tower, and a vertical partition 18 is provided inside the integrated housing. The vertical partition horizontally divides the inner cavity of the housing into a first chamber and a second chamber. , the first chamber forms the above-mentioned gas purification box, and the above-mentioned porous partition 17 is horizontally arranged in the first chamber. The porous partition divides the first chamber up and down into the above-mentioned mixing box 1 in the upper part and the above-mentioned atomization box 3 in the lower part. The above-mentioned structure is simple in structure and convenient to set up. The vertical outer side of the integrated housing is arranged flush with the outer side of the tower body, which can make the entire integrated device look neat and beautiful.

In other embodiments of the present invention, the atomization device can also be other forms of atomization devices, such as compression atomizer or vibration atomizer; the number of filler layers can be adjusted according to actual needs; the spray pipe It can also be installed on the outside of the tower as needed.

Claims (5)

1. A biological trickling filter integrated device for treating organic waste gas, including a biological trickling filter tower. The biological trickling filter tower includes a tower body. The tower body is provided with a packing layer and a spray device. It is characterized in that: the tower body An atomization box for storing liquid surfactant is provided on the upper end surface. An atomization device is provided in the atomization box. A mixing box is provided above the atomization box. The atomization box and the mixing box are connected through a porous partition. The atomized liquid rises and enters the mixing box. The mixing box is provided with an air inlet for the organic waste gas to enter; the mixing box is provided with an air outlet, and the air outlet is connected to the lower part of the tower body through the first gas pipeline; the tower body is The upper end face is also provided with a gas purification box for storing organic solvents. The upper part of the tower body is provided with an exhaust port. The exhaust port is connected to the gas purification box through a second gas pipeline so that the gas discharged from the exhaust port enters the gas purification box. In organic solvents, the gas purification box is provided with a gas discharge port. 2. The biological trickling filter tower integrated device for treating organic waste gas according to claim 1, characterized in that: an integrated shell is provided on the upper end surface of the tower body, and a vertical partition is provided inside the integrated shell. The vertical partition horizontally divides the inner cavity of the housing into a first chamber and a second chamber. The first chamber forms the gas purification box. The above-mentioned porous partition is horizontally arranged in the first chamber, and the porous partition separates the first chamber. The chamber is divided up and down into the upper mixing box and the lower atomization box. 3. The biological trickling filter tower integrated device for treating organic waste gas according to claim 2, characterized in that the vertical outer surface of the integrated housing is arranged flush with the outer surface of the tower body. 4. The biological trickling filter tower integrated device for treating organic waste gas according to any one of claims 1 to 3, characterized in that: a liquid collecting tank is provided at the lower part of the tower body, and the spray device includes a liquid collecting tank. The circulation pump in the tank leads the nutrient solution to the top of the packing layer through the spray pipe. The upper end of the spray pipe is equipped with a spray head. The spray pipe is located inside the tower body and passes through the packing layer from bottom to top. 5. The biological trickling filter integrated device for treating organic waste gas according to claim 1, characterized in that: the atomization device includes an ultrasonic transducer sheet arranged at the bottom of the atomization box.