A prepyrolysis type civil heating furnace and heating method thereof

Abstract

The invention provides a pre-pyrolysis type civil heating furnace and its heating method. The heating furnace includes a furnace body, and the furnace body is provided with a longitudinal partition on the top wall of the furnace, which divides the interior of the furnace body into a first cavity connected at the bottom. Chamber and the second chamber, the first chamber is a convective heat exchange area, the middle of the second chamber is equipped with a fire grate, which divides the chamber into upper and lower areas, above the fire grate is an oxygen-free pyrolysis area, and below the fire grate It is a semi-coke combustion zone, and a feeding port is set on the furnace wall exiting the anaerobic pyrolysis zone, a primary tuyere is set under the grate between the anaerobic pyrolysis zone and the semi-coke combustion zone, and a communication port is set in the second chamber. The heat pipe of the anaerobic pyrolysis zone and the semi-coke combustion zone; the area connected to the bottom of the first chamber and the second chamber is the burnout zone, and the slagging grate is arranged between the semi-coke combustion zone and the burnout zone, so The second tuyere is set in the burnout zone. The invention improves and optimizes the furnace body of the heating furnace, reduces the emission of pollutants from the heating furnace, controls the combustion, and reduces the labor intensity of operation.

Description

technical field

[0001] The invention belongs to the field of coal combustion equipment, and relates to a prepyrolysis type civil heating furnace and a heating method thereof. Background technique

[0002] In areas that cannot be covered by urban heat pipe networks, the heating of small regional boiler rooms using civil heating furnaces has developed rapidly. Civil heating stoves mainly refer to small household coal-fired stoves that use loose coal as fuel (including bituminous coal and anthracite) for heating purposes; civilian heating stoves also include stoves that use honeycomb coal and briquettes as fuel.

[0003] A large number of experimental studies have shown that the current civilian stoves on the market have problems such as incomplete combustion and poor environmental performance. After adding coal, they will heat up rapidly, and volatiles will precipitate rapidly, resulting in a large amount of sulfur and nitrogen oxides. Rapid precipitation and emission . [0...

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