Porous metal medium burner capable of burning low heat value gas

A low calorific value gas, porous metal technology, applied in the direction of gas fuel burners, burners, combustion methods, etc., to achieve the effects of reducing pollution, saving energy, and reducing content

Inactive Publication Date: 2006-07-19
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the deficiencies of the existing porous media burner for low calorific value gas used in the meta

Method used

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  • Porous metal medium burner capable of burning low heat value gas
  • Porous metal medium burner capable of burning low heat value gas

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Embodiment Construction

[0025] like figure 1 , figure 2 As shown, the main body of the burner is composed of 1 refractory casing, 2 large-pore medium in the combustion zone, 3 small-pore medium in the preheating zone, 4 burner shell, 5 dust removal metal mesh or metal brush, 6 gas pipeline, 7 premixing chamber and 8 air pipes, in the cavity formed by the burner casing 4 and the refractory sleeve 1, the large-pore medium 2 in the combustion zone, the small-pore medium 3 in the preheating zone, and the combustion zone are arranged in sequence from top to bottom. The materials of the inner large-pore medium 2 and the small-pore medium 3 in the preheating zone can all be made of high-temperature-resistant stainless steel. The top of the small hole medium 3 in the preheating zone is flush with the top of the burner shell 4, the large hole medium 2 in the combustion zone and the small hole medium 3 in the preheating zone can be a whole, it is best to design a number of large holes Small hole. From the ...

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Abstract

The invention relates to a porous metallic medium burner which burns the gas with low caloricity. The invention comprises a fire-proof tube, the big porous medium in the burning area, and the small porous medium in the preheating area, the burner case, the dust-cleaning metallic network or metallic brush, a pre-mixing room, and an air channel. The burning area with big porous medium and the preheating area with small porous are arranged from up to down in the burner while both of them uses high-temperature resistant stainless steel to be integrated into a whole; the fire-proof tube packs the outer wall of the upper part of air channel to the upper part of burning area; the dust-cleaning metallic network or metallic brush is arranged under the small porous medium. The invention can burn the gas fuel with the caloricity less than 1000kcal.m3 as blast furnace coal gas, to save the energy source and reduce the nitride and sulfide in the burned product to reduce the pollution. The invention can apply the industries as metallurgy and chemical plant.

Description

technical field [0001] The invention relates to a burner used in the metallurgical industry, in particular to a porous metal medium burner for burning low calorific value gas. Background technique [0002] At present, the metallurgical industry produces by-product gas with a calorific value below 1000 kcal, such as blast furnace gas, CO, H 2 , CnHm and other combustible components are low, and the combustion efficiency in the burner is not high, resulting in a large amount of low calorific value gas emissions, which wastes energy and pollutes the environment. As early as 1979, some scholars proposed the idea of ​​adding porous media to the burner, and many related experimental work later found that premixed combustion in porous media has many advantages: smaller lean burn limit, higher combustion rate And stability, wide range of load adjustment, high combustion intensity, small burner volume, etc., and the content of pollutants such as nitrides and sulfides in the combusti...

Claims

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Application Information

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IPC IPC(8): F23D14/02F23D14/66
CPCY02E20/34
Inventor 李本文刘慧陈海耿赫冀成赵长颖陶文铨
Owner NORTHEASTERN UNIV
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