Industrial boiler of multi-fuel burning using ultrafine coal dust as main fuel

A fuel co-combustion and industrial boiler technology, applied in the boiler field, can solve the problems of low thermal efficiency, waste of energy, limited application of pulverized coal combustion, etc.

Inactive Publication Date: 2008-12-31
姜政华
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a kind of industrial boiler with multi-fuel co-combustion mainly based on ultra-fine coal powder, which mainly solves the problem of environmental pollution and low thermal efficiency of existing industrial boilers burning raw coal , waste of energy, high cost of gas and oil, and limited application of pulverized coal combustion

Method used

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  • Industrial boiler of multi-fuel burning using ultrafine coal dust as main fuel
  • Industrial boiler of multi-fuel burning using ultrafine coal dust as main fuel

Examples

Experimental program
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Embodiment 1

[0012] Embodiment 1, referring to Figures 1 and 2, is processed into a boiler shell 5, and an insulation layer 6 and a furnace wall 7 are sequentially installed in the shell 5, and the left and right membrane water cooling walls 3 and the front membrane water cooling wall 4 are installed in the furnace wall 7 , the left and right membrane water walls 3 and the front membrane water wall 4 adopt the angle tube type full water wall structure, the boiler drum 1 is installed on the upper left part of the shell 5, the front downcomer 2 is installed on the lower part of the drum 1, and the front downcomer 2 is installed on the lower part The front header 8 is connected to the connecting pipe 24 and the upper connecting pipe 25 in the middle part of the right side of the drum 1, the lower part of the upper connecting pipe 25 is connected to the connecting pipe 26, and the upper header 28 is installed on the lower part of the connecting pipe 26. After the lower part of the upper header 2...

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Abstract

The invention discloses an industrial boiler for mixed combustion of various fuels mainly based on ultrafine coal powder, which is mainly based on ultrafine coal powder (coal-water slurry) and supplemented by natural gas or oil products , is an industrial boiler with high combustion efficiency, low cost, automatic control, and reduced environmental pollution, especially suitable for small and medium-sized industrial boilers.

Description

Technical field: [0001] The invention relates to the technical field of boilers, in particular to an industrial boiler for co-firing of various fuels based on superfine pulverized coal. Superfine pulverized coal can be co-combusted with natural gas or oil. Product mixed firing, suitable for small and medium industrial boilers. Background technique: [0002] At present, the industrial boilers currently in use all use a single fuel, that is to say, coal-fired boilers cannot burn oil and gas, and oil-fired and gas-fired boilers cannot burn coal. Most small and medium-sized industrial boilers generally use raw coal, coal Combustion is accompanied by severe dust, sulfur dioxide (SO 2 ), carbon dioxide (CO 2 ) and nitrogen oxides (NO X ) and other air pollutants, seriously pollute the environment, and the thermal efficiency is low, wasting energy; the cost of directly burning natural gas and oil products is high, which has brought serious troubles to enterprises and people's li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23C1/00F23C7/06F23C3/00F23D17/00F23J15/02F23N5/00
Inventor 姜政华于建华刘德胜崔爱珍鹿理友
Owner 姜政华
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