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

A fuel co-firing, industrial boiler technology, applied in the field of boilers, can solve the problems of limited application of pulverized coal combustion, high gas and oil costs, environmental pollution, etc., and achieve the effects of stable combustion, improved combustion efficiency, and improved burnout rate

Inactive Publication Date: 2006-01-25
姜政华
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  • Abstract
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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

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Embodiment 1

[0013] Example 1, see figure 1 , 2 , Processed into the boiler shell 5, install the insulation layer 6 and the furnace wall 7 in the shell 5, install the left and right membrane water wall 3 and the front membrane water wall 4 in the furnace wall 7, the left and right membrane water wall 3, the front Membrane water wall 4 adopts a corner tube type full water wall structure. Drum 1 is installed at the upper left of shell 5, front drop tube 2 is installed at the lower part of drum 1, and front header 8 is installed at the lower part of front drop tube 2. The middle part of the right side is connected to the connecting pipe 24 and the upper connecting pipe 25, the lower part of the upper connecting pipe 25 is connected to the connecting pipe 26, the upper header 28 is installed at the lower part of the connecting pipe 26, the rear membrane type water wall 16 is installed at the lower part of the upper header 28, the rear membrane type The water wall 16 adopts a corner tube type full...

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Abstract

The invention discloses an industrial boiler fired by multiple mixed fuels with superfine powder coal(water coal slurry) as the primary and natural gas or oil products as the auxiliary, and it is an industrial boiler with the advantages of high firing efficiency, low cost, auto control and reduction of environmental pollution, especially applied to middle-small scale industrial boilers.

Description

Technical field: [0001] The present invention relates to the technical field of boilers, in particular to an industrial boiler that uses superfine coal powder as the main fuel for co-firing of multiple fuels. The superfine coal powder can be co-fired with natural gas or oil, coal water slurry and natural gas or oil. It is suitable for medium and small industrial boilers. Background technique: [0002] The current industrial boilers are all burning a single fuel, which means that coal-fired boilers cannot burn oil and gas, and oil and gas-fired boilers cannot burn coal. Most small and medium-sized industrial boilers generally use raw coal and coal. Combustion is accompanied by severe dust, sulfur dioxide (SO 2 ), carbon dioxide (CO 2 ) And nitrogen oxides (NO X ) And other large amounts of air pollutants, which seriously pollute the environment, have low thermal efficiency and waste energy; the high cost of direct burning of natural gas and oil products will cause serious problems...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C1/00F23C7/06F23C3/00F23D17/00F23J15/02F23N5/00
Inventor 姜政华于建华
Owner 姜政华
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