Oxygen-enriched burning device burning inferior coal

A technology of oxygen-enriched combustion and low-quality coal, which is applied in the direction of combustion methods, combustion equipment, and non-flammable liquid/gas transportation, etc. It can solve the problems of poor adaptability of coal types, single oxygen-enriched channels, and research on the use of low-quality coal for oxygen-enriched combustion There are fewer problems, and it is convenient to replace equipment, save money, and shorten the construction period.

Inactive Publication Date: 2010-07-07
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This device can burn low-quality coal very well, but the oxygen-enriched channel is too single, which cannot ensure sufficient and uniform mixing with primary air and coal powder, and is not very adaptable to coal types
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Method used

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  • Oxygen-enriched burning device burning inferior coal
  • Oxygen-enriched burning device burning inferior coal
  • Oxygen-enriched burning device burning inferior coal

Examples

Experimental program
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Embodiment approach

[0018] figure 1 It is a schematic diagram of the oxygen-enriched combustion device involved in the present invention, and the oxygen-enriched combustion device includes an oxygen-enriched nozzle 1, an outer casing 2, a sliding device, an oxygen-enriched channel, an inner sleeve 8 and a combustion component 9; the combustion component 9. The inner casing 8 and the outer casing 2 are arranged concentrically, the combustion part 9 is arranged inside the inner casing 2, and from the inside to the outside are the combustion part, the inner casing and the outer casing. Combustion part 9 can adopt conventional burner, and air and pulverized coal are sprayed into from this burner. The oxygen-enriched channel is composed of a heat-resistant tube 5 and a ceramic tube 6 arranged inside the heat-resistant tube. The oxygen-enriched channel is nested and fixed in the sliding device, and can be moved along the inner sleeve 8 and the outer sleeve 2. Sliding in the direction of the central ax...

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PUM

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Abstract

The invention relates to an oxygen-enriched burning device burning inferior coal. The device comprises oxygen-enriched nozzles, an outer sleeve, a sliding device, oxygen-enriched channels, an inner sleeve and a burning part, wherein the burning part, the inner sleeve and the outer sleeve are distributed in a concentric circle way, and the burning part is arranged at the innermost layer. The oxygen-enriched channel consists of a heat-resisting pipe and a ceramic pipe, and the ceramic pipe is sleeved in the heat-resisting pipe; and the oxygen-enriched channels are nested and fixed in the sliding device and can slide radially between the inner and the outer sleeves. The sliding device is composed of a sliding block fixed on the heat-resisting pipe, an outer chute fixed on the outer sleeve and an inner chute fixed on the inner sleeve. More than two oxygen-enriched channels are uniformly distributed between the inner and the outer sleeves; and a group of oxygen-enriched nozzles are arranged on each oxygen-enriched channel. The oxygen-enriched nozzles are arranged at the outlets of the oxygen-enriched channels, and each oxygen-enriched nozzle has a 15-75-degree angle with the axis of the burning part. The device solves the problems of unstable burning, low burning intensity and narrow adaption range of coal when the inferior coal is used on a furnace and a kiln, thereby improving the burning efficiency of the inferior coal.

Description

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Claims

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Application Information

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IPC IPC(8): F23L7/00
CPCY02E20/34
Inventor 张衍国蒙爱红李清海陈梅
Owner TSINGHUA UNIV
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