Importance

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Abstract

A method and an abatement device for destroying the low concentration coalmine methane is disclosed. Low concentration coalmine methane can be destroyed automatically by passing through the device described in the following process: (A) Heating the oxidization bed electrically till its temperature rises up to at least 800° C.; (B) Passing the airflow that contains low concentration coalmine methane into the oxidization bed, where the methane is oxidized quickly, releasing thermal energy; (C) Reserving of the thermal energy generated to maintain the reactions continuously; (D) Discharging of waste gas from the oxidization bed after oxidizing reaction; (E) Reversing airflow direction and passing the low concentration coalmine methane from the opposite direction into the oxidization bed, where methane is oxidized and releasing the thermal energy; and (F) Reserving and outputting excess thermal energy. These steps from (B), (C), (D), (E) and (F) are repeated. The device is comprised of a reversal valve mechanism, oxidization bed, recovery mechanism, gas inlet system, as well as monitoring and measuring system. The reversal valve mechanism is mounted in the oxidization bed and attached to the recovery mechanism and the gas inlet system, which are assembled as a whole package. The invention is featured with energy saving, environmental protection, high efficiency, safety, prompt and complete reaction and it is applied in the engineering project of destroying low concentration coalmine methane or other similar projects.

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First Claim