A pulverized coal burner for boiler

Abstract

The invention relates to the technical field of burner equipment, and discloses a high-efficiency pulverized coal burner for a boiler. The high-efficiency pulverized coal burner for the boiler comprises a burner body and a combustion chamber, wherein a gas collection ring is welded to the middle of the burner body and is in a circular ring shape; flow-guiding gas inlets are formed in the top partand the bottom part of the gas collection ring; and gas guiding channels are welded to the right sides of the flow-guiding gas inlets. According to the high-efficiency pulverized coal burner for the boiler, through arranging a flow guiding cabin, a jet stream hole and a flow guiding plate, a first gas flow can enter the flow guiding cabin so as to be accelerated for the first time, the acceleratedgas flow flows through the area of the jet stream hole, the flow velocity of the gas flow flowing through the jet stream hole is further promoted, the gas flow flows out finally through the guiding of the flow guiding plate, and the gas flow velocity on the inner wall of the burner body is fast in the process, so that a burning flame can be driven to eject in a perfectly straight way, the occurrence of the phenomenon that the flame in an indefinite form burns out the top part of the burner body is prevented, and the service life of the burner body is guaranteed.

Description

technical field [0001] The invention relates to the technical field of burner equipment, in particular to a pulverized coal burner for boilers. Background technique [0002] Pulverized coal burner is a kind of equipment that can fully burn pulverized coal in a short time and generate high-temperature vortex. It is used for high-temperature heating of various annealing furnaces, metal heating furnaces, boilers, quenching furnaces and other heating furnaces. [0003] see figure 1 , the traditional pulverized coal burner structure for boilers includes a burner body 1, a combustion chamber 2 is provided inside the burner body 1, a secondary air inlet 3 is provided on the top of the burner body 1, and the left side of the combustion chamber 2 is located on the combustion chamber. The inside of device body 1 is provided with mixed pulverized coal air inlet 4, and air inlet pipe 5 is installed on the left side of mixed air inlet 4, and induced draft fan 6 is installed on the end o...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a pulverized coal burner for a boiler, which has the advantages of two airflow accelerations to ensure that the flame is directly irradiated without burning the top of the combustion body to increase the service life, and the air intake is driven by the accelerated airflow to ensure combustion efficiency and no black smoke. Problems raised by the above-mentioned background technology

Images