Circulating fluidized bed boiler for purely burning furfural residues

A technology of circulating fluidized bed and fluidized bed, which is applied in the direction of fluidized bed combustion equipment, fuel burned in a molten state, and combustion methods, etc., can solve problems such as difficulty in meeting national environmental protection requirements and pollution, and achieve enhanced self-cleaning ability, avoid corrosion, and prevent the effect of poor feeding

Inactive Publication Date: 2016-06-01
TAIYUAN BOILER GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the furfural slag is used in the following ways: using small fixed grate furnaces to burn, but it is difficult to meet the national environmental protection requirements; or natural stacking, waste, and pollution

Method used

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  • Circulating fluidized bed boiler for purely burning furfural residues
  • Circulating fluidized bed boiler for purely burning furfural residues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Such as figure 1 and figure 2 As shown, a circulating fluidized bed boiler for purely burning furfural slag includes a drum 7, a membrane water-cooled hearth 5, a high-temperature panel superheater 6 and a fluidized bed combustion chamber 3, wherein: it also includes a secondary hot air inlet Furnace branch pipe 17, water-cooled air chamber 1, water-cooled slag discharge pipe 2, ignition device 16, adiabatic cyclone separator 13, material return system 14, evaporation tube bundle 8, low-temperature superheater 9, economizer 10, shaft flue 11, air Preheater 12, low energy consumption self-balancing return valve 15, water-cooled air distribution plate 19 and bell-type hood 20, the high-temperature panel superheater 6 is arranged in the upper part of the membrane-type water-cooled hearth 5, and the fluidized bed The combustion chamber 3 is arranged at the lower part in the membrane type water-cooled hearth 5, and the furfural slag fuel inlet 4 communicating with the flui...

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PUM

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Abstract

The invention belongs to the technical field of fluidized bed boilers and particularly relates to a circulating fluidized bed boiler for purely burning furfural residues. According to the circulating fluidized bed boiler for purely burning the furfural residues, a high-temperature platen superheater is arranged in a hearth; a fluidized bed combustion chamber is arranged on the lower portion of the interior of the hearth; a wind distribution plate is arranged at the bottom of the fluidized bed combustion chamber; a wind cap is arranged on the wind distribution plate; a wind chamber is arranged below the wind distribution plate; a residue discharge pipe is arranged in the wind chamber; an ignition device is arranged on the wind chamber; the upper portion of a separator communicates with an outlet in the upper portion of the hearth; a lower vertical pipe of the separator is connected with the upper portion of a material return system; the lower portion of the material return system communicates with the fluidized bed combustion chamber; a low-energy-consumption self-balancing material return valve is mounted on a vertical pipe of the material return system; an inlet of a vertical shaft flue communicates with an outlet tube in the center of the upper portion of the separator; an evaporation pipe bundle, low-temperature superheaters, economizers and an air preheater are all arranged in the vertical shaft flue; and the vertical shaft flue is further provided with soot blowing points.

Description

technical field [0001] The invention belongs to the technical field of fluidized bed boilers, in particular to a circulating fluidized bed boiler which uses furfural slag as a single fuel and purely burns furfural slag. Background technique [0002] Furfural slag is the waste residue produced when furfural is extracted from corncobs. It has high volatile content, high water content, and a little acid residue, and low ash content. Most of the furfural slag can be used in the following ways: burning in a small fixed grate furnace, but it is difficult to meet the national environmental protection requirements; or stacking and discarding naturally, resulting in pollution. Due to the increasingly strict national environmental protection policies and the gradual improvement of people's living standards, it is urgent to seek a new technology to fully utilize furfural slag from its original state to meet the dual requirements of economic and environmental benefits. [0003] Charact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C10/10F23C10/20F23C10/26
CPCF23C10/10F23C10/20F23C10/26
Inventor 张一珍贺辉宝刘爱成张建春王占奎翟永军延岐李艳芳阴志青王阳樊竹娟刘建光姬育敏郭义博
Owner TAIYUAN BOILER GROUP
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