pulverized coal combustion channel

Abstract

A combustion channel, especially a pulverized coal combustion channel suitable for pulverized coal boiler corollary equipment. The whole is a shaft structure. The front end of the flame expansion section is a flange in front of the furnace, which is used to install the pulverized coal burner. The rear end of the flame stabilization section is equipped with a mounting flange, which is used to connect with the boiler body; It is composed of the furnace front flange, the tertiary air inlet pipeline, the tertiary air gas collection ring, the rear end plate of the tertiary air gas collection ring, and the tertiary air oblique long nozzle hole. The tertiary air inlet pipeline is arranged under the flame expansion section , the tertiary air inlet pipeline is connected to the tertiary air gas collecting ring located inside the flame expansion section, the rear end plate of the tertiary air gas collecting ring has holes, the flame stable combustion section is made of high alumina bricks, and the flame stable combustion section is below There is a circulating flue gas inlet, which is connected tangentially to the flame stabilization section, and the circulating flue gas inlet channel is poured with castables. The invention has the advantages of simple structure, high efficiency, no pollution in the working process, and environmental protection.

Description

technical field [0001] The invention relates to a combustion channel, in particular to a pulverized coal combustion channel suitable for high-efficiency, energy-saving, green and environment-friendly pulverized coal boiler supporting equipment. Background technique [0002] At present, my country is a big country in the production and use of industrial boilers in the world. Due to the contradictions caused by the lack of natural gas resources in my country and the increasingly stringent requirements for energy conservation and environmental protection, pulverized coal-fired industrial boilers will be my country's mainstay for a long period of time in the future. Leading products. Although the previous pulverized coal-fired boilers adopted clean combustion technology to achieve high efficiency, energy saving, and low pollution, the combustion channel on the pulverized coal boiler is a water-cooled structure, which is difficult to manufacture and has a long construction period,...

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Problems solved by technology

[0003] The present invention aims at the disadvantages of the prior art that the structure is cumbersome, the production period is long, and maintenance and replacement are inconvenient, and provides a pulverized coal combustion channel with simple structure, short production time, easy maintenance and replacement, and low nitrogen emission in the boiler system.

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