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Broad Flame Oxy-Solid Fuel Burner

A technology of solid fuel and burner, which is applied in the direction of burner, burner and fuel supply for burning powder fuel, and can solve the problems of unstructured burner and lack of internal geometric structure characteristics, etc.

Active Publication Date: 2017-04-12
AIR PROD & CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, that burner is not configured to operate on pulverized solid fuel, and lacks any internal geometry that might be required to enable the burner to burn solid fuel in a stable attached flame, specifically in both the fuel and oxygen nozzles Structure

Method used

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  • Broad Flame Oxy-Solid Fuel Burner
  • Broad Flame Oxy-Solid Fuel Burner
  • Broad Flame Oxy-Solid Fuel Burner

Examples

Experimental program
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Embodiment Construction

[0074] For the purpose of describing this document, the following definitions are provided. A transport gas is a gaseous fluid used to transport or transport solid fuel particles and may include air, oxygen-enriched air, nitrogen, carbon dioxide, recovered flue gas, and combinations thereof. Oxygen is contained in a concentration greater than or equal to 28 mol%O 2 , preferably greater than or equal to 60 mol %O 2 , and more preferably greater than or equal to 85 mol % O 2 gas of oxygen molecules. Solid fuels are hydrocarbon fuels in solid form and may include petroleum coke; various types of coal, including anthracite, bituminous, sub-bituminous, and lignite; peat, wood, grass, and other so-called biomass materials; urban Solid waste; and combinations thereof.

[0075] Several embodiments and variations of flat flame or wide flame oxygen / powdered solid fuel burners are described herein. A flat-flame or wide-flame burner is one in which the fuel nozzle has a non-circular ...

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PUM

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Abstract

This invention relates to broad flame oxy-solid fuel burners. A wide flame solid fuel / oxygen burner comprising: a fuel nozzle having an aspect ratio of at least about 2, the aspect ratio being defined by the fuel nozzle width W measured along the major axis centerline to the fuel nozzle width W measured along the minor axis centerline The ratio of the height H is defined, and the fuel nozzle has a long wall spaced substantially symmetrically from the centerline of the major axis, the fuel nozzle has an inlet width WN; and a pair of vanes positioned on either side of the centerline of the major axis at Between the centerline of the shaft and the adjacent long wall, the vanes diverge in the flow direction at an angle relative to the centerline of the long shaft so that the vanes are closer together at the upstream end and more apart at the downstream end, thereby A central diffuser is formed between the vanes, and an outer converging nozzle is formed between each vane and one long wall.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 61 / 811.194, filed April 12, 2013, which is hereby incorporated by reference in its entirety. technical field [0003] This application relates to flat flame burners for burning solid fuels with oxygen. Background technique [0004] Solid fuels, such as petroleum coke (petroleum coke) and anthracite, are difficult fuels to ignite in a flowing stream due to their very low volatile matter content. Thus, solid fuels typically experience significant ignition delays, which cause a flame front that is substantially separate from the fuel nozzle. This is an inherently unstable situation that can lead to high levels of unburned carbon, unstable process heating conditions (heat transfer, melting, etc.), and can lead to flame extinguishing, which can make combustion very rapid and unsafe land degradation. [0005] US Patent No. 7,390,189, which is hereby incorp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23D1/00F23K3/02F23L9/00
Inventor M.D.达戈斯蒂尼S.B.普索
Owner AIR PROD & CHEM INC