Carbon-molecule gasification combustion boiler engineering operation system

An operation system and gasifier technology, which is applied in the field of large-scale carbon-molecular gasification combustion boiler engineering operation system, and can solve the problems of high gas production cost, pollution and serious problems.

Inactive Publication Date: 2019-01-29
陈涛
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The efficiency of this coal-to-natural gas method is generally only about 50%, and the gas production process is very polluting, and the cost of gas production is also high, and the pollution is discharged in place

Method used

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  • Carbon-molecule gasification combustion boiler engineering operation system

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Embodiment Construction

[0006] According to the accompanying drawings, the engineering operation of the carbon-molecular gasification combustion boiler system is further explained: the entering coal 16 is first tested according to the national standard to determine the elemental composition and provide a basis for subsequent combustion; Granularity coal and pulverized coal are produced, step II pulverized coal is reinforced with sulfur agent to make pellets (the control point here is based on the sulfur content, according to the composition of Ca / S close to 1 ratio), step III coal pellets are dried, and then sent to the coal bunker together, Then use the coal stoker 2 to feed into the carbon-molecular gasification furnace 1 to realize sulfur fixation and gas production under anoxic conditions; the gasification agent 14 is added from the bottom of the furnace, and the raw coal and gasification agent move in reverse in the furnace; the sulfur-containing slag It is discharged from the ash tray 15 and use...

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Abstract

The invention provides a carbon-molecule gasification combustion boiler engineering operation system. The carbon-molecule gasification combustion boiler engineering operation system achieves the purposes of source pollution prevention and control, element reduction and high-effectiveness utilization of coal resources. The carbon-molecule gasification combustion boiler engineering operation systemhas the advantages that anaerobic sulfur fixation (Ca/S approaches 1) is conducted at a gasification section, and sulfur-containing furnace slag serves as a cement raw material; hot coal gas and air are cross-mixed and are blown downwards to combust (alpha approaches 1 and the air is generally reduced by 10% or more compared with the domestic and overseas advanced direct coal combustion technology), and generation of noxious substances such as SOx and NOx related to oxygen is prevented, controlled and reduced; the combustion volume thermal intensity is 360 kw/m3 and above, the gauge pressure of a coal gas isolating valve is less than 0 pa, and coal gas does not lead in the combustion process; the exhaust gas temperature of a boiler is lower than 106 DEG C; and the whole system is high in energy cleaning and utilization efficiency and low in cost.

Description

technical field [0001] The invention relates to a carbon-molecular gasification combustion boiler system, in particular to a large-scale carbon-molecular gasification combustion boiler engineering operation system capable of preventing and controlling pollution. Background technique [0002] Existing large-scale coal-based boilers generally use coal powder, coal-water slurry chamber combustion; small particle fluidized bed and other direct coal combustion methods to burn boilers. The congenital defect of these direct coal burning methods is that gas (gas phase volatile matter) and solid (solid phase carbon) are co-combusted in the same combustion chamber. Under this congenital defect, to completely burn the coal, an excess air of α ≥ 1.2 is used. Combustion inevitably produces toxic and harmful gases related to oxygen to pollute the atmosphere; it also reduces efficiency. At present, in order to solve the pollution problem of coal-based boilers at home and abroad, coal-fire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23B90/06F23K1/00F23K3/00F23L1/00F23L9/00
CPCF23B90/06F23K1/00F23K3/00F23K2201/20F23K2201/30F23K2201/505F23L1/00F23L9/00
Inventor 不公告发明人
Owner 陈涛
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