Continuous clean combustion equipment and method for coal

Abstract

The present invention discloses one kind of continuous clean coal burning apparatus and method. There are gas generator set on one side of the combustor with gas outlet and flame outlet communicated with the combustor; and independent air chamber in the bottom of the gas generator and beside the air chamber for the combustor. The continuous clean coal burning process includes burning and gasifying granular coal in the gas generator, spraying the high temperature flame and gas flame from the gas generator to the combustor via different ports; mixed burning of the gas flame and the high temperature flame to dry distill and gasify coal inside the combustor, and blowing air to the combustor for the semi-coked coal to burn fast. The present invention has the advantages of high heat efficiency, no pollution, etc.

Description

technical field [0001] The present invention relates to a combustion device and method, more specifically to a coal continuous clean combustion device and method, applicable to various coal-fired furnaces. Background technique [0002] At present, coal-fired furnaces are usually composed of a combustion chamber and an air chamber. During work, coal is placed on the grate of the combustion chamber, and after being ignited, the air is supplied through the air chamber to make the coal burn to release heat for production and domestic heating. This combustion device has been widely used by people because of the cheap fuel of coal, especially for production and domestic heating in winter. It is more economical than burning crude oil, refined oil, natural gas, etc., and the cost is low, and my country's coal resource reserves are far more abundant than oil. But this kind of combustion device often can produce a large amount of poisonous and harmful flue gas and dust owing to direc...

AI Technical Summary

Problems solved by technology

But this kind of combustion device often can produce a large amount of poisonous and harmful flue gas and dust owing to directly adopting coal combustion to supply heat, especially when adding coal to the combustion chamber in the furnace, the volatile matter of coal has not had time to completely burn in the combustion chamber That is, it is discharged outside the furnace, because the coal cannot be burned cleanly and seriously pollutes the surrounding environment, and the soot formed by a large amount of combustible coal powder is discharged outside the furnace with low thermal efficiency, the maximum is only 72%, which greatly wastes coal resources

Moreover, this kind of combustion device often cannot use various low-priced raw coals, and can only use granular coal or briquette coal, which greatly increases the production and living heating costs.

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