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Combustion method of fossil fuel and equipment thereof

A combustion device, a technology for fossil fuels, applied in combustion methods, burners for burning powder fuels, burners, etc., can solve problems such as rapid progress of adverse reactions, and achieve the effects of reducing burden, environment-friendly operation, and improving combustion efficiency.

Inactive Publication Date: 2007-05-23
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Too low oxygen concentration is obviously not conducive to the rapid progress of the reaction

Method used

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  • Combustion method of fossil fuel and equipment thereof
  • Combustion method of fossil fuel and equipment thereof
  • Combustion method of fossil fuel and equipment thereof

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Embodiment Construction

[0014] A combustion method for increasing the oxygen concentration of powder-containing airflow provided by the present invention is characterized in that oxygen is added before the primary airflow carrying powder fuel enters the combustion chamber, so that its oxygen concentration is appropriately increased, and the oxygen concentration is 22 ~35%, the powder-containing airflow before entering the combustion chamber includes the airflow carrying fuel powder entering the primary air duct, or the concentrated airflow after passing through the thick-lean separator. Fig. 1 is a schematic structural principle diagram of an embodiment provided by the present invention. It is mainly composed of a primary air duct 1, an oxygen inlet channel 2 and a combustion chamber 3; the oxygen inlet channel is arranged on the primary air duct 1.

[0015] In order to save oxygen, on the basis of the above scheme, the present invention is combined with the rich-lean combustion technology (ie, the r...

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Abstract

The invention is the combustion method of a petrifaction fuel and its equipment, and relates to a combustion technology that uses the petrifaction fuel as the powder floating combustion. The technological characteristics of the invention are: add oxygen before the airflow of the powder fuel going into the combustion chamber and increase the oxide concentration of the fuel; the said oxygen concentration is 22-35%; the said powder airflow comprises the powder air mixing airflow into the primary air tube, the concentrating airflow separated by the separator, the mixing airflow of the pre-heating chamber. The invention makes the volatilization of the fuel faster and more concentrate, and is good for the stability of the air lighting and reduces the production of NOx and increases the concentration of CO2 in the smoke.

Description

technical field [0001] The present invention relates to a fossil fuel combustion technology and equipment, in particular to a combustion technology and equipment that use fossil fuels (including coal, coke powder, and petroleum coke) as powdery suspension combustion, mainly for boilers, and can also be kilns , heating furnace, coal gasification generator, etc. It belongs to the field of combustion technology and equipment technology. Background technique [0002] During the pulverized suspension combustion of fossil fuels (including coal, coke powder, and petroleum coke), fuel particles are in a state of constant motion and chemical reactions in the combustion chamber. The nitrogenous component in fuel (i.e. fuel nitrogen) is NO x main source of . After the fuel particles are pyrolyzed, part of the fuel nitrogen is precipitated together with the volatile matter and becomes volatile nitrogen, while the rest remains in the coke-shaped fuel and becomes coke nitrogen. Volati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23C7/00F23L7/00F23D1/00
Inventor 张海吕俊复刘青岳光溪
Owner TSINGHUA UNIV
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