scholarly journals Mercury and Environment: Mercury Behavior and Control Technology in the Coal Combustion Process

2005 ◽  
Vol 16 (4) ◽  
pp. 204-212 ◽  
Author(s):  
Hiroshi Moritomi
2012 ◽  
Vol 562-564 ◽  
pp. 1087-1090
Author(s):  
Jia You Liu ◽  
Feng Zhong Sun

Nitrogen oxides (NOx) are one of the pollutants generating from coal combustion in stoker boilers, and they are very harmful to human health and environment. It is necessary to study NOx emissions control technology for stoker boilers. By explaining the formation mechanism and control methods of thermal NOx, fuel NOx and prompt NOx, NOx emissions control technologies applied in stoker boilers are introduced and research advances are given, some advice for NOx emissions control in stoker boilers is put forward.


2015 ◽  
Vol 38 (7) ◽  
pp. 1165-1186 ◽  
Author(s):  
Marco B. Quadrelli ◽  
Lincoln J. Wood ◽  
Joseph E. Riedel ◽  
Michael C. McHenry ◽  
MiMi Aung ◽  
...  

Author(s):  
I. A. Sofia Larsson ◽  
Anna-Lena Ljung ◽  
B. Daniel Marjavaara

AbstractThe flow field and coal combustion process in a pilot-scale iron ore pelletizing kiln is simulated using a computational fluid dynamics (CFD) model. The objective of the work is to investigate how the thermal effects from the flame affect the flow field. As expected, the combustion process with the resulting temperature rise and volume expansion leads to an increase of the velocity in the kiln. Apart from that, the overall flow field looks similar regardless of whether combustion is present or not. The flow field though affects the combustion process by controlling the mixing rates of fuel and air, governing the flame propagation. This shows the importance of correctly predicting the flow field in this type of kiln, with a large amount of process gas circulating, in order to optimize the combustion process. The results also justify the use of down-scaled, geometrically similar, water models to investigate kiln aerodynamics in general and mixing properties in particular. Even if the heat release from the flame is neglected, valuable conclusions regarding the flow field can still be drawn.


2013 ◽  
Vol 312 ◽  
pp. 777-781
Author(s):  
Lu Ping Liu

In the modern industrial manufacturing field, PLC plays a very important role. In this paper, through analyzing the working process and control requirements of plate shearing machine and using PLC control technology, the automation design of the plate shearing machine control system is realized.


2013 ◽  
Vol 726-731 ◽  
pp. 2017-2021 ◽  
Author(s):  
Zhao Du ◽  
Xiang Ling Yuan ◽  
Ai Ling Ren ◽  
Feng Ying Fu

According to the pharmaceutical industry produce VOCs and stench of atmospheric environment pollution, combined with typical pharmaceutical biological fermentation and chemical synthesis process of VOCs and odour pollution are classified 4 types:fermentation tail gas, recycling of exhaust gas, exhaust gas and wastewater workshop stench. The control technology should be selected according to the four types of waste characteristics.


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