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Big low NOx controls short for Zhejiang Province technology
From;    Author:Stand originally
Come nearly 10 years, institute of project of Zhejiang university heat energy began many theory and experimental research to control of oxide of the nitrogen in coal fired process. In the light of coal fired process medium NOx generates the rule to reach generate destroy mechanism, combine the most advanced NOx on current international to dominate research positive result, institute of project of big heat energy of short for Zhejiang Province is right each technology was controlled to undertake comprehensive ground considers to innovate after NOx aflame control and combustion, the low NOx that combined our country actual condition to form one a complete set of to have Chinese distinguishing feature controls a technology. Big low NOx controls short for Zhejiang Province the technology is given priority to with NOx is being controlled inside furnace, combinative air classifications combustion Stage-air, burn wind OFA and fuel each technology such as recrudescent Reburning and SNCR, the technical application that falls in the light of different parameter undertook comprehensive ground is optimized conformity and improve, the technology of LNB of low NOx burner that and development was developed has big distinguishing feature of short for Zhejiang Province alone -- " adjustable combustion of low NOx of coal fines shade and small negative charge light a technology firmly " , this technology gets develop ceaselessly and be perfectinged in project application in recent years, application shows this technology has low NOx to discharge as a result, small negative charge is lighted firmly, chroma is successive and adjustable, prevent knot broken bits, coal is planted reach bear to get used to the good point with strong capability, this technology already obtained national science and technology to progress at was being obtained 2005 second-class award. Big to short for Zhejiang Province low NOx controls the each core technology in the technology to undertake simple introduction and specification below.

1.1 adjustable combustion of low NOx of coal fines shade and small negative charge light a technology firmly
Adjustable combustion of low NOx of coal fines shade and small negative charge light a technology firmly to basically pass depart of coal fines shade to realize low NOx combustion, hold the effect that lights firmly concurrently at the same time. Use shade combustion technology, can export in burner local form rich fuel area, create reducing atmosphere, restrain NOx generate, can make NOx has relatively reduce substantially. Drop to extent inspects transformed administrative levels likewise and be decided, administrative levels is more, drop range is bigger. Additional, this technology still was used " shade combustion + lights body firmly " double light a technology firmly, ensure to have below small negative charge good light the effect firmly: To shedding burner to transform 1 ~ continuously quadrilateral 2 can make small negative charge does not cast oil to light the effect firmly to fall from 70% bear to 40% ~ 50% bear. Its are specific principle and its technology analysis are as follows:
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