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Horizontal type circulating fluidized bed boiler with horizontal cyclone separator

A technology of cyclone separator and circulating fluidized bed, which is applied in the directions of fluidized bed combustion equipment, fuel burned in a molten state, combustion type, etc., can solve problems such as affecting the normal operation of boilers, reburning and coking, and achieve compact structure and reduce combustion. temperature, cost reduction effect

Active Publication Date: 2014-04-02
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the content of combustible matter in the material is high, the combustible matter is easy to reburn and coke in the recycling system, affecting the normal operation of the boiler

Method used

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  • Horizontal type circulating fluidized bed boiler with horizontal cyclone separator
  • Horizontal type circulating fluidized bed boiler with horizontal cyclone separator
  • Horizontal type circulating fluidized bed boiler with horizontal cyclone separator

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Embodiment Construction

[0018] The specific embodiment of the present invention and working process will be further described below in conjunction with accompanying drawing.

[0019] figure 1 The schematic diagram of the structure principle of the horizontal circulating fluidized bed boiler with the horizontal cyclone separator provided by the present invention, it includes the main combustion chamber composed of the main combustion chamber dense phase area 2 and the main combustion chamber dilute phase area 5, the auxiliary combustion chamber Chamber 6, burnout chamber 7 and tail flue 11, the air distribution plate 1 is arranged at the lower part of the main combustion chamber, there is a second water-cooled partition wall 31 between the main combustion chamber and the auxiliary combustion chamber 6, the auxiliary combustion chamber 6 and the burnout chamber There is a first water-cooled partition wall 30 between the chambers 7 , and a V-shaped ash hopper 19 is formed at the bottom of the secondary ...

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Abstract

A horizontal type circulating fluidized bed boiler with a horizontal cyclone separator comprises a main combustion chamber, a secondary combustion chamber (6), a burnout chamber (7) and a tail gas flue (11). A horizontal cyclone separator (25) is provided in the burnout chamber (7). An outer cylinder of the horizontal cyclone separator (25) is defined by a separator spacer (8), a burnout chamber rear water-cooled wall (23) and a burnout chamber side water-cooled wall (24). The separator spacer (8) is formed by a separator upper circular-arc section (81), a separator spacer lower vertical section (26) and a separator spacer inclined section (28). A middle cylinder (9) of the horizontal cyclone separator is inserted into the burnout chamber (7) from two sides or one side of the burnout chamber side water-cooled wall (24). The separator spacer lower vertical section (26), the burnout chamber rear water-cooled wall (23) and the burnout chamber side water-cooled wall (24) define a material returning channel (27). An aeration air nozzle (17) is provided at a lower part of the burnout chamber rear water-cooled wall (23). A V-shaped ash hopper wall (32), a material chute baffle plate (29), the separator spacer inclined section (28) and the burnout chamber side water-cooled wall (24) define a material chute (18). The aeration air nozzle (17) and the material chute (18) face each other in line arrangement. The horizontal type circulating fluidized bed boiler is particularly suitable for fluidized combustion of fuels like biomass with low ash content and coal gangue with high ash content.

Description

technical field [0001] The invention relates to a circulating fluidized bed combustion equipment, in particular to a horizontal circulating fluidized bed combustion equipment with a horizontal cyclone separator, which belongs to inferior coal, solid waste, urban and industrial sludge, biomass and other inferior Fuel combustion equipment, especially suitable for circulating fluidized combustion of biomass with low ash content. Background technique [0002] At present, the main combustion equipment for low-quality fuels such as low-quality coal, solid waste, sludge, and biomass in my country are chain furnaces, water-cooled vibrating grate boilers, and circulating fluidized bed boilers. Different types of furnaces are selected according to different fuels. Different furnace types have their own characteristics. [0003] Circulating fluidized bed boiler is an efficient and clean combustion technology developed in recent years. It has wide fuel adaptability and can burn high-qua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23C10/08F23C10/18
CPCF23C10/08F23J2900/15026
Inventor 李清海张衍国康建斌王谦李俊臣周晓彬
Owner TSINGHUA UNIV
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