Graded wind-adjusting low NOX multi-fuel combustion device

A burner and co-firing technology, applied in the field of boiler combustion devices, can solve the problems of single fuel, insufficient fuel, waste, etc., and achieve the effects of strong adaptability, reduction of production volume, and reduction of emissions

Active Publication Date: 2008-12-03
XUZHOU KERONG ENVIRONMENTAL RESOURCES CO LTD
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Problems solved by technology

[0002] At present, due to the single fuel and some defects in the structure of ordinary boiler burners, it will cause incomplete and insufficient combustion, which is no

Method used

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  • Graded wind-adjusting low NOX multi-fuel combustion device

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Embodiment Construction

[0009] In the figure, the burner consists of primary air duct 10, secondary air duct 14, cold air duct 16, tertiary air duct 15, secondary air rotating blade 8, tertiary air adjustable rotating blade 9, oil gun tube 3, gas pipe 11. Composed of flame detector 3, pulverized coal pipe 13 and igniter 12; its feature is: the burner is composed of tubular primary air pipe 12, gas pipe 11, cold air pipe 16, pulverized coal pipe 13, and secondary air pipe 14 and the tertiary air duct 15 are set and fixed in the order of the coaxial centers; the tubular oil gun tube 3 is inserted into the port of the primary air duct 10 from back to front, and is flush with the port, and is fixed on the axis of the primary air duct 10. center; the tail ends of the primary air pipe 10 and the gas pipe 11 are respectively connected with the horizontal cold air inlet flange 16, the primary air inlet flange 1 and the gas pipe inlet flange 4; the pulverized coal pipe 13 is set on the cold air pipe 16 periph...

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Abstract

The invention relates to a multi-channel low NOx co-combustion burner. The burner comprises a tubular oil gun barrel, a primary air pipe, a combustible gas pipe, a cold air pipe, a coal flow pipe, a secondary air pipe and a tertiary air pipe, which are sleeved and fixed coaxially and sequentially. A flame detector is arranged between the combustible gas pipe and the primary air pipe. A secondary air whirling blade and a tapered secondary air baffle are arranged between the secondary air pipe and the coal flow pipe. A screw rod regulating shaft is arranged on one side of the tapered secondary air baffle. A tertiary air flow regulating tube is sleeved outside the tertiary air pipe and has the same diameter as the tertiary air pipe. A tertiary air adjustable whirling blade is arranged between a tertiary air conical tube and the secondary air pipe. A screw rod regulating shaft is arranged on one side of the tertiary air adjustable whirling blade. The burner can burn oil, combustible gas and coal independently or at the same time, has high adaptability to coal qualities, ensures stable and complete combustion of fuels, minimizes the formation of NOx and reduces the discharge of harmful substances.

Description

technical field [0001] The invention relates to a combustion device for a boiler, in particular to a grading-adjusting air-conditioning low-NO fuel that can simultaneously burn oil, gas and pulverized coal or a certain kind of fuel. x Mixed burner. Background technique [0002] At present, due to the single fuel and some defects in the structure of ordinary boiler burners, it will cause incomplete and insufficient combustion, which is not only wasteful, but also emits many harmful substances. Due to the adaptability to coal quality Narrower, so the adaptability is poor, and there is no ideal solution for this at present. Contents of the invention [0003] In order to solve the problems existing in some boilers, the present invention provides a graded air conditioning low NO x Mixed combustion burner, the burner can not only burn oil, gas and pulverized coal at the same time, but also burn a certain fuel separately. It has wide adaptability to coal quality, and it can mak...

Claims

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Application Information

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IPC IPC(8): F23D17/00
Inventor 王文举李鹏云
Owner XUZHOU KERONG ENVIRONMENTAL RESOURCES CO LTD
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