Vertical flashback type coal burning boiler

A technology for burning coal and boilers, which is applied in the field of vertical reverse combustion coal-fired boilers, can solve the problems of polluting the environment, low fuel utilization rate, and a large amount of black smoke, and achieves the effect of reducing the use cost and improving the fuel utilization rate.

Inactive Publication Date: 2007-12-26
徐昌延
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  • Abstract
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Problems solved by technology

This kind of direct-fired coal-fired boiler will produce a lot of black smoke when burning, which not only has low fuel utilization rate, but also pollutes the environment

Method used

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  • Vertical flashback type coal burning boiler

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0011] A vertical reverse combustion coal-fired boiler, the furnace body includes a gas generating chamber 11, a combustion chamber 4 and a burnout chamber 3, adopts the reverse combustion coal combustion method, the boiler furnace body is vertical, and the upper part of the furnace body is provided with a chimney 1 and two A dust removal door 2, the chimney 1 is located in the middle of the upper part of the furnace roof, and the dust removal door 2 is located on both sides of the upper chimney 1 of the furnace roof; the lower part is provided with a return pipe 10; the gas generating room 11 is provided with a coal storage bin 12 and a coal filling port 5 , two air inlets 6 and a slag removal outlet 8, the coal inlet 5 is in the middle of the front of the gas generating chamber 11; Above the coal bunker 12, the wind is directed downward to form rev...

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Abstract

This invention relates to a vertical back-fire coal-burning boiler, in which a body includes a gas generating chamber, a firebox and a burn-off chamber characterizing in applying a back-fire coal-burning mode and a vertical boiler, the upper part of which is set with a chimney and an ash-cleaning door, the lower part is set with a return pipe, the gas generating chamber includes a bunker, a feed mouth, an air inlet and a dregs cleaning port, the feed mouth and the air inlet are set with air duct, fire grates are set in the combustion chamber isolated by several water-jacket clapboards, and gas goes along two symmetrical dual-S, and multiple convection pipes are set in the burn-off chamber, which increases usage of fuel by two symmetrical dual-S paths of fuel and reduces temperature to 130deg.C from 300deg.C and applies natural air without blast or inducing so as to reduce cost greatly.

Description

technical field [0001] The invention relates to a coal-fired boiler, in particular to a vertical reverse-fired coal-fired boiler. Background technique [0002] The small multi-purpose boilers currently used are generally direct-fired. The smoke exhaust channel from the furnace of the direct-fired coal-fired boiler to the convection heating section is generally above the fire grate in the furnace. When working, the coal is on the fire grate. Adequate air must be introduced into the furnace to allow the coal to burn completely under the condition of sufficient oxygen. When the coal is burned, the air enters from the bottom of the grate, and the high-temperature flue gas after the coal is burned in the furnace comes from the smoke exhaust channel above the furnace. Discharged into the convection heating section. This kind of direct-fired coal-fired boiler will produce a lot of black smoke when burning, which not only has low fuel utilization rate, but also pollutes the environ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H1/44
Inventor 徐昌延
Owner 徐昌延
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