Novel abrasion-proof circulating fluidized bed

A circulating fluidized bed, a new type of technology, applied in the field of circulating fluidized bed, to achieve the effects of low wear, reasonable design and reduced wear

Inactive Publication Date: 2009-08-12
王有良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So as to fundamentally solve the wear and tear of the recirculation zone at the lower part of the circulating fluidized bed

Method used

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  • Novel abrasion-proof circulating fluidized bed
  • Novel abrasion-proof circulating fluidized bed
  • Novel abrasion-proof circulating fluidized bed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1, accompanying drawing have provided the specific embodiment of the present utility model, according to figure 1 , figure 2 , image 3 As shown, the furnace body of the utility model is a circular furnace body, and 1 in the figure is a membrane water-cooled wall in the recirculation zone. The water-cooled wall 1 and the membrane-type water-cooled wall 2 in the advection area are excessively connected in a streamlined manner.

Embodiment 2

[0011] Embodiment 2, body of heater of the present utility model is square body of heater, as Figure 4 As shown in the figure, 1 is the membrane water cooling wall in the recirculation area, the membrane water cooling wall 1 in the recirculation area is inclined outward, and the inclination angle is 0.8 degrees, and the membrane water cooling wall 1 in the recirculation area is streamlined with the membrane water cooling wall in the advection area For over-connection, the four corners of the membrane water wall in the recirculation area are sealed and connected by fins 3 .

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PUM

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Abstract

A new circulating fluidized bed radically improves the structure of circulating fluidized beds in the prior art, comprising membrane walls. The bed is characterized in that the membrane wall in a recirculation region leans outward and the membrane wall in the recirculation region is in an excessive connection with the membrane wall in an advection region in a streamlining way. The invention has reasonable design and simple structure, compared with the prior art, downstream material granular flow in the recirculation region can leave the membrane wall to greatly reduce the abrasion of the water wall, simultaneously the reflux material flow along the wall can better resist the impact of other material granules from hearth on side walls, thus reducing the abrasion of the water wall to the least and prolonging service life.

Description

Technical field: [0001] The present invention relates to a circulating fluidized bed. Background technique: [0002] The circulating fluidized bed in the prior art usually adopts a vertical water-cooled wall, and the bottom of the water-cooled wall is provided with a pouring layer, and the external structure is equipped with a cyclone separator and a feeding mechanism, etc., and has strong adaptability to boiler fuel, high combustion efficiency, high-efficiency desulfurization, It has the advantages of low emission of nitrogen oxides and easy realization of comprehensive utilization of ash and slag. However, in this kind of circulating fluidized bed, the membrane-type water-cooled wall in the recirculation area is in an upright state, and the material circulating in the furnace flows back along the wall and the granular material often causes serious wear and tear on the corresponding part of the bedside wall, especially the middle and lower water-cooled walls, so that the us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/24F23C10/18F23M5/08
Inventor 王有良梅杰赵勇
Owner 王有良
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