High-temperature flue gas treatment device

Abstract

The invention provides a high-temperature flue gas treatment device, which comprises a mixer and an ozone generator, wherein the mixer has a shell, a gas inlet connected with high-temperature flue gasis formed in the bottom of the shell, a gas outlet is formed in the top of the shell, a plurality of partition plates are arranged in the shell and divide the interior of the shell to form a gas flowchannel, one end of the gas flow channel communicates with the gas inlet, the other end of the gas flow channel communicates with the gas outlet, the partition plates are of hollow structures, the hollow structures of the partition plates communicate with the ozone generator, and through holes are formed in the partition plates. According to the invention, the contact time of high-temperature flue gas and ozone is effectively prolonged, and ozone is supplemented in time, so that the ozone in the gas flow channel is always in a high-concentration state so as to rapidly oxidize formaldehyde andphenol in the high-temperature flue gas, and the content of formaldehyde and phenol in the high-temperature flue gas is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of waste treatment, in particular to a high-temperature flue gas treatment device. Background technique [0002] In the production process of magnesia carbon bricks, phenolic resin needs to be added as a binder. During the curing process of phenolic resin, some formaldehyde and phenol gases will volatilize into the air, which will pollute the atmosphere as they are discharged out of the furnace. Existing technologies generally use UV photolysis to treat waste gas. The principle of UV photolysis is to use ultraviolet light-emitting lamps to irradiate phenol and formaldehyde, and generate ozone ions to oxidize phenol and formaldehyde to decompose phenol and formaldehyde. However, UV photolysis The amount of ozone produced is very small. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a high-temperature flue gas treatmen...

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Problems solved by technology

[0002] In the production process of magnesia carbon bricks, phenolic resin needs to be added as a binder. During the curing process of phenolic resin, some formaldehyde and phenol gases will volatilize into the air, and will pollute the atmosphere as they are discharged out of the furnace.

Existing technologies generally use UV photolysis to treat waste gas. The principle of UV photolysis is to use ultraviolet light-emitting lamps to irradiate phenol and formaldehyde, and generate ozone ions to oxidize phenol and formaldehyde to decompose phenol and formaldehyde. However, UV photolysis Produces very little ozone

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