Novel cyclone bias pulverized coal burner

Abstract

The invention discloses a novel cyclone bias pulverized coal burner. The novel cyclone bias pulverized coal burner is characterized by comprising a central pipe, a pulverized coal concentration device, a primary air channel, a pulverized coal bias separating cylinder, a central pipe flaring, a primary air pipe flaring, a secondary air channel, a cyclone, a tertiary air channel and a tertiary air pipe flaring from inside to outside. According to the novel cyclone bias pulverized coal burner, the ignition and the burning of anthracite are supported in a mode of supplementing high-quality bituminous coal, the effect of increasing volatile matters of pulverized coal in a disguised form is achieved in the preliminary burning stage of the pulverized coal, and the timely ignition, the stable burning and the efficient burnout of low-volatile-matter pulverized coal are guaranteed. The novel cyclone bias pulverized coal burner is simple in structure, convenient to transform, and capable of efficiently burning the low-volatile-matter coal and particularly suitable for the structural transformation of burners of medium and small-sized industrial boilers, and can be widely applied to burning of low-volatile-matter anthracite duff for the industrial boilers.

Description

technical field [0001] The invention relates to the technical field of pulverized coal combustion devices, in particular to a novel swirling dense and thin pulverized coal burner suitable for burning anthracite pulverized coal. Background technique [0002] China is a big country of coal production and consumption. At present, coal provides about 75% of my country's primary energy. In the near future and many years later, the energy structure dominated by coal will not change much. Coal resources will also be in the present and future. For a long time, it has occupied the dominant position in my country's industrial energy use. [0003] my country is rich in anthracite reserves, accounting for about 19% of the total coal reserves. Due to the low volatile content, slow volatile release rate, high ignition temperature, and poor flammability of this coal, it is extremely difficult to ignite and burn out, and peak-shaving operation is more difficult. is very difficult. Compared ...

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Problems solved by technology

[0003] my country is rich in anthracite reserves, accounting for about 19% of the total coal reserves. Due to the low volatile content, slow volatile release rate, high ignition temperature, and poor flammability of this coal, it is extremely difficult to ignite and burn out, and peak-shaving operation is more difficult. is very difficult

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