Lane control gas supply side line underground gasification furnace

Abstract

The invention provides an underground lane control gas supply side line gasification furnace. The furnace comprises a coal gas passage, multi-drill holes which are drilled directionally on the bottom of a coalbed in the coal gas passage, a gas supply lane, a gas supply pipe and a plurality of temperature pressure and flow testing instrument valves arranged in a base plate rock of the coalbed, and a gas supply branch pipe between the gas supply lane and the multi-drill holes. The system has a simple structure, easy configuration and reliable operation. The furnace capable of carrying out simultaneous multi-point gasification has the advantages of higher output, gas supply protection, controllability, adjustment as required, and the like. The furnace can solve a plurality of problems of poor gasification effect, discontinuous and unstable gas production, small gas output, low gasification rate, and the like.

Description

technical field [0001] The invention relates to the field of underground coal gasification, in particular to underground gasification furnace technology. Background technique [0002] Underground coal gasification technology is a clean coal technology that burns coal buried underground in a controlled manner, generates combustible gas through the chemical reaction and thermal action of coal, and transports it for application. With the technological characteristics of integrating the three major processes of well construction, coal mining and gasification, it is known as the second-generation coal mining method and is deeply valued by countries all over the world. However, the underground coal gasification engineering technology is still far from perfect, and there are many problems that need further research, optimization and improvement, such as gasification intensity, continuous and stable gas production, gas production components, and gasification rate. [0003] The exis...

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Problems solved by technology

[0004] The technical task of the present invention is to provide an underground coal gasification furnace and a corresponding new process system for furnace making, gas supply and operation in view of the deficiencies in the prior art. The system is simple in structure, easy to set up, reliable in operation, and can simultaneously Gasification has the advantages of increasing production, realizing gas supply protection, controllability, and adjustment on demand. It can simultaneously solve multiple problems such as poor gasification effect, uncontinuous and stable gas production, low gas production, and low gasification rate.

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