Water-gas reaction device employing pyrolysis gasification of coal gangue

Abstract

Disclosed is a water / gas reaction apparatus for pyrolysis and gasification of coal gangue, comprising a pyrolysis and gasification chamber, a material cooling apparatus, and a steam-generating apparatus. The material cooling apparatus comprises a high temperature cooling chamber, a low temperature cooling chamber, and a cooling chamber bridging arch. The top part of the high temperature cooling chamber is in communication with the bottom part of the pyrolysis and gasification chamber. The cooling chamber bridging arch is arranged between the high temperature cooling chamber and the low temperature cooling chamber and comprises a bridging arch, a steam-collecting chamber, and a steam entry pipe. A lower part opening of the steam-collecting chamber in the middle part of the bridging arch faces the low temperature cooling chamber. One end of the steam entry pipe leads to the steam-collecting chamber. The steam-generating apparatus comprises an annular hollow metal chassis, a steam drum, a steam drum input pipe, and a steam drum output pipe. A furnace water drum is formed within the annular hollow metal chassis. A steam drum input pipe of the furnace body water drum is in communication with the steam drum. A steam drum output pipe of the steam drum is in communication with another end of the steam entry pipe. The present invention utilizes the residual heat of a solid product from the pyrolysis and gasification of coal gangue to generate superheated steam, thus facilitating a water / gas reaction.

Description

technical field [0001] The invention relates to coal gangue pyrolysis gasification technology, in particular to a water gas reaction device for coal gangue pyrolysis gasification. Background technique [0002] Coal gangue - the stone selected from raw coal is the waste residue of coal preparation plants, which is not easy to deal with. In China, hundreds of millions of tons of coal gangue cannot be used every year, and it still continues to discharge about 100Mt every year. It not only accumulates and occupies land, but also It can spontaneously combust and pollute the air or cause a fire, causing serious environmental pollution. [0003] Due to coalification for hundreds of millions of years, coal gangue contains 20-30% of carbon, oil, and gas substances, of which oil and gas account for 11-15%, and carbon accounts for 7-15%. Pyrolysis and gasification of coal gangue to obtain oil and gas products and 70-80% solid products (components are silicon dioxide, aluminum oxide, f...

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Problems solved by technology

[0002] Coal gangue - the stone selected from raw coal is the waste residue of coal preparation plants, which is not easy to deal with. In China, hundreds of millions of tons of coal gangue cannot be used every year, and it still continues to discharge about 100Mt every year. It not only accumulates and occupies land, but also It can spontaneously combust to pollute the air or cause a fire, causing serious environmental pollution

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