Using high temperature air combustion with low oxygen combustion instead of the traditional ordinaryHigh temperature air combustion technology mainly include two basic techniques: one is to preheat combustion air to a higher temperature, fuel combustion point above;One is to use the combustion flue gas flow oxygen volume concentration of measures to control the combustion zone, such as less than 15%, even lower.Because in addition to the combustion air preheating temperature is very high, fuel with oxygen to produce branched chain reaction, accompanied by pyrolysis and thermal cracking, and its reaction mechanism is very complicated.Shao-jian jiang central south university and others on the combustion characteristics of experimental research show that high temperature low oxygen combustion flame volume increases exponentially, brightness, color becomes shallow, peak temperature, uniform temperature field distribution, stable combustion expanded, combustion noise is low, there is no traditional local characteristics such as high temperature and high oxygen flame;Due to the peak temperature is reduced, greatly reduce NOx combustion formed by thermal type.