Pulverized coal combustor capable of being ignited with little gasified oil

Abstract

The invention relates to a pulverized coal combustor capable of being ignited with little gasified oil, which comprises a little gasified oil gun, a little gasified oil combustion chamber, a pulverized coal conveying pipeline, a primary combustion chamber, a secondary combustion chamber and a third-level combustion chamber, wherein the pulverized coal conveying pipeline is connected to a pulverized coal inlet of the primary combustion chamber, the little gasified oil combustion chamber is connected to the front side of the primary combustion chamber, the little gasified oil gun is connected to an air inlet of the little gasified oil combustion chamber, the secondary combustion chamber is connected to the rear side of the primary combustion chamber, a third-level stable combustion chamber is connected to the rear side of the second combustion chamber, and the three-level stable combustion chamber consists of an alpha-angle tapered drum and a straight drum from front to back, wherein the inner diameter of the angle-angle tapered drum is enlarged from front to back. The invention provides the pulverized coal combustion which is capable being ignited with little gasified oil and has the advantages of higher combustion efficiency and oil saving rate.

Description

technical field [0001] The invention relates to a pulverized coal burner, in particular to a gaseous micro-oil cold-state ignition and ultra-low-load stable combustion burner. Background technique [0002] At present, the phenomenon of my country's energy shortage is becoming more and more prominent. From the "electricity shortage" in the Yangtze River Delta to the "coal shortage" and "oil shortage" in Northeast China, East China, South China, and Southwest China, it shows that oil shortages and high oil prices are gradually increasing. It has become a major bottleneck restricting economic and social development. From the perspective of my country's oil supply and demand, industrial oil accounts for about half of oil consumption, of which fuel oil accounts for about 35% of industrial oil. Thermal power plants are large consumers of fuel oil. Usually, the start-up and shutdown of coal-fired boilers in thermal power plants and the stable combustion at low loads all use the met...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages of low combustion efficiency and poor fuel saving rate of existing pulverized coal burners, the present invention provides a pulverized coal burner which is ignited by gasification micro-oil, which has high combustion efficiency and fuel saving rate, In order to effectively alleviate the pressure of increasing power generation costs on power plants due to rising oil prices

Images