Analysis of electrostatic precipitation characteristics of coal fired in Vietnam and engineering application
Haibao Zhao1,2,*, Song Shou1, Lin Zhao1, Dingfei Yang1, Miaochun Fan1, Hao Ma1
* The author to whom correspondence should be addressed.
1 Zhejiang Feida environmental science & technology CO., LTD, Zhuji, 311800, China
2 Key Laboratory of Coal-fired flue gas purification equipment research of Zhejiang Province, Zhuji, 311800, China
Abstract
The electrostatic precipitation (ESP) characteristics of 16 kinds of Vietnamese coal smoke and dust are counted and compared with 51 kinds of China coal. It finds that the Na2O content of Vietnamese coal ash is significantly low and resulting in poor ESP performance. A comparison is made between the emission indicators of coal-fired flue gas and dust at home and abroad, and it find that the Vietnamese standard requirements are relatively low. The selection and design of the ESPs for the Yongxin project in Vietnam are carried out. After the project is put into operation, the performance of the project is tested and compared. The results shows that the core components of the ESP, which were produced in China, could achieve an export dust concentration of 30.2 mg m-3 and a dust removal efficiency of 99.93%, far superior to the owner's requirement of 98 mg m-3 and Vietnam 200 mg m-3 Emission standards when burning lowquality Vietnamese coal, which have the advantages of compact structure, low cost, and great potential for international market promotion.
Keywords - Coal power plan, electrostatic precipitator (ESP), foreign applications, outlet dust concentration, Vietnamese coal.