pulverized coal burner

Abstract

A pulverized coal burner comprises an outer barrel, an inner barrel, a secondary wind blade, a wind screen, an ignition wind blade, a coal preventing plate, a cone, a coal blade, an electric actuator, a fire observing pipe I, a pulverized coal pipe, a fire observing pipe II, a burning torch, an ignition wind pipe and a wind pipe, and further comprises a pre-burning cone loop, and the pre-burning cone loop is connected above the outer barrel; the pulverized coal pipe is connected with the inner wall of the outer barrel, and is connected with the inner wall of the ignition wind pipe through the ignition wind blade; the outer wall of the ignition wind pipe is connected with the wind screen; the wind screen is connected with the inner wall of the inner barrel through the secondary wind blade; the wind pipe is connected with the outer barrel and the ignition wind pipe; the coal preventing plate is connected with the cone; the cone is connected with the coal blade; and the coal blade is connected with the pulverized coal pipe. The structure of the pulverized coal burner is cooled through air cooling, the burner operates normally, the problem that the burner is burnt out during water cooling or the wall of a pre-burning chamber generates fissures is solved, accidents are avoided, and the problem that ash accumulation caused by coking is easy to generate in the pulverized coal burner in the prior art is solved.

Description

Technical field [0001] The invention relates to the field of boiler combustion, in particular to a pulverized coal burner. Background technique [0002] At this stage in our country, there are still a large number of chain furnaces with low efficiency, high energy consumption and high pollution. Among them, the combustion rate of pulverized coal in chain furnaces is only 65%, and the combustion rate of pulverized coal in fluidized bed boilers is only 85%, which cannot be clean. Combustion has the problem of low efficiency and high energy consumption. However, the oil and gas boiler has the problem of regional energy supply. In addition, the existing pulverized coal boiler burner is prone to coking and ash accumulation, which requires manual cleaning on a regular basis, which is time-consuming and labor-intensive. Summary of the invention [0003] In summary, the object of the present invention is to provide a pulverized coal burner. [0004] The purpose of the present invention is ...

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Problems solved by technology

[0002] At the present stage in our country, there are still a large number of chain furnaces with low efficiency, high energy consumption and high pollution. Among them, the pulverized coal combustion rate of the chain furnace is only 65%, and the pulverized coal combustion rate of the fluidized bed boiler is only 85%, which cannot achieve cleanliness. Combustion, there are energy utilization problems of low efficiency and high energy consumption, while oil and gas boilers have regional energy supply problems, and the existing pulverized coal furnace burners are prone to coking and ash, which requires manual cleaning on a regular basis, which is time-consuming and labor-intensive

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