Device for burning waste gases

 

(57) Abstract:

The invention relates to industrial ecology and can be used for purification of waste gases in industry. The device contains a coaxially mounted in the cylindrical housing, the inner surface of which is coated with a catalyst, a source of infrared rays, a spiral swirl and disk elements with the guide edges, the catalyst coating on the outer surface and end-to-end channels, co-directed channels helical swirl. 1 Il.

The invention relates to industrial ecology and can be used in flameless purification of waste gases of industrial plants.

A device for combustion of waste gases containing cylindrical body, the inner surface of which is coated with a catalyst that is installed at the entrance in case a spiral swirl with the guide channels and coaxially with the housing installed in its cavity, a source of infrared rays (SU, ed.St. N 788896, CL F 23 G 7/06, 1986).

The disadvantages of this device are low gas purification efficiency and high energy consumption.

The technical result of the invention is to improve a device for combustion of waste gases, containing cylindrical body, the inner surface of which is coated with a catalyst that is installed on the casing inlet spiral swirl with the guide channels and coaxially with the housing installed in its cavity, a source of infrared rays, according to the invention, equipped with disk elements with the guide edges, made with continuous channels, inclined to the body axis at the angle of gradient forming guide channels helical swirl, and a catalyst coating on the outer surface.

This allows to increase the efficiency of gas cleaning by providing increased likelihood of contact with catalyst pollutant and intensification of mass transfer in the gas stream and to reduce the energy intensity by increasing the probability of contact of the activated infrared pollutant with the catalyst in comparison with its transition in the equilibrium state.

The drawing shows a diagram of the device.

Device for burning waste gases comprises a cylindrical housing 1, the inner surface of which is coated with a catalyst that is installed at the inlet of the housing 1 swirl 2 with the guide channels 3 and coaxially to the casing oral channels 6, inclined to the axis of the housing 1 at the elevation angle of helix forming guide channels 3 swirl 2, and the catalyst coating on the outer surface.

When the device is a gas release serves into the body 1 through the spiral channels 3 swirl 2 in which the pollutant molecules are activated by an infrared radiation source 4 and are oxidized to harmless substances on the surface of the catalyst coating of the housing 1 and the disk element 5 to move in the equilibrium state. This is because when the interaction of the gas flow with the disk elements 5 is an intensive contact with them axial layers of the gas flow and deformation to the periphery of the housing 1, where it is intensively covered washes the catalyst surface of the housing 1. At the same time part of the axial layers of the gas stream passes through the disk elements on channels 6, which arrangement provides the lowest energy consumption, because the directed movement of a gas stream, organized by the swirler 2, which leads to the ejection of gas from the peripheral layers in the axial region of the housing 1 in the rarefaction zone and intensive washing of the opposite surface of the disk elements 5. Thus, it is day, and enhances the probability of contact of the activated infrared contaminant from the surface of the catalyst compared to the probability of return in equilibrium. The result is a more efficient purification of a gas stream from a contaminant at a lower energy consumption for the activation of the contaminant. The thus treated gas stream is discharged from the housing 1 and is discharged into the atmosphere.

Thus, the proposed device provides improved efficiency of gas purification and reduction of energy consumption.

Device for burning waste gases containing cylindrical body, the inner surface of which is coated with a catalyst that is installed at the entrance in case a spiral swirl with the guide channels and coaxially with the housing installed in its cavity, a source of infrared rays, characterized in that it is provided with a disk elements with the guide edges, made with continuous channels, inclined to the body axis on the elevation angle of helix forming guide channels helical swirl, and a catalyst coating on the outer surface.

 

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