Ultra-low concentration gas double-oxidation device
An ultra-low concentration, double oxidation technology, used in incinerators, combustion methods, combustion types, etc., can solve the problems of poor safety and economy, and the inapplicability of gas oxidation reaction devices, so as to improve the safety of the device and improve the economy of the device. The effect of improving safety and security
Pending Publication Date: 2018-10-26
SHANXI WENLONG COAL MINE ENG DESIGN
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[0004] In order to solve the problem that the existing gas oxidation reaction device is not suitable for coal mine gas treatment with a concentration of 0.3% to 3%, and has poor safety and economical efficiency, the present invention provides an ultra-low concentration gas double oxidation device
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[0024] The specific embodiment of the present invention will be further described in conjunction with the accompanying drawings.
[0025] Such as figure 1 , figure 2 As shown, the structure diagram of the ultra-low concentration gas double oxidation device described in the present invention.
[0026] The ultra-low-concentration gas double oxidation device of the present invention adopts a symmetrical layout, including two regenerative catalytic chambers; the regenerative catalytic chambers are filled with honeycomb thermal storage ceramics 4, honeycomb catalysts 5, and ceramic pellets 6 sequentially from bottom to top. The filling height of the honeycomb thermal storage ceramics 4 is 300mm-500mm; the filling height of the honeycomb catalyst 5 is 100mm-300mm; the filling height of the ceramic balls 6 is 300mm-500mm. Honeycomb thermal storage ceramics 4 are used to recover the heat of low-temperature flue gas and preheat low-concentration gas. The honeycomb catalyst 5 is use...
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The invention belongs to the technical field of ultra-low concentration gas treatment, and particularly relates to an ultra-low concentration gas double-oxidation device which solves the problems thatan existing gas oxidation reaction device is not suitable for treating coal mine gas with the concentration being 0.3%-3%, and security and economical efficiency are poor. The ultra-low concentrationgas double-oxidation device is used for treating the gas with the methane concentration being 0.3%-3%, and comprises a heat storage catalyst chamber, the heat storage catalyst chamber is internally provided with honeycomb thermal storage ceramic, a ceramic small ball and a honeycomb catalyst arranged between the honeycomb thermal storage ceramic and the ceramic small ball, the ultra-low concentration gas enters the device from the honeycomb thermal storage ceramic and is discharged from the ceramic small ball after being oxidized by the honeycomb catalyst, the ultra-low concentration gas is in contact with the honeycomb catalyst to make a reaction, and the reaction temperature is 350 DEG C-450 DEG C. By means of the device, the oxidation device treatment concentration upper limit is allowed to be increased to 3%, and the safety and the economical efficiency of the oxidation device are improved.
Description
technical field [0001] The invention belongs to the technical field of ultra-low-concentration gas treatment, and in particular relates to an ultra-low-concentration gas double oxidation device, which uses heat storage and catalytic technology to oxidize and decompose coal mine gas with a concentration of 0.3% to 3% into carbon dioxide and water. , and a device that produces high-temperature flue gas. Background technique [0002] The existing ventilated gas oxidation device is used to treat gas with a methane concentration lower than 1.2%. It uses thermal storage oxidation reaction for treatment, and the reaction temperature is 800-900 degrees. This technology is relatively mature and has good environmental protection performance. The treated product Direct discharge, the economic benefit is relatively poor. [0003] For ultra-low-concentration gas, coal mine gas with a concentration of methane less than 3%. The gas in this concentration range is far below the explosion l...
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Login to View More IPC IPC(8): F23G7/07
CPCF23G7/068F23G7/07F23G2202/60F23G2206/10
Inventor 江河闫风强萧琦
Owner SHANXI WENLONG COAL MINE ENG DESIGN