Recent progress on laser-induced breakdown spectroscopy for the monitoring of coal quality and unburned carbon in fly ash
Recent progress on laser-induced breakdown spectroscopy for the monitoring of coal quality and unburned carbon in fly ash
Lei Zhang (张雷), Zhi-Yu Hu (胡志裕), Wang-Bao Yin (尹王保,), Dan Huang (黄丹), Wei-Guang Ma (马维光), Lei Dong (董磊), Hong-Peng Wu (武红鹏), Zhi-Xin Li (李志新), Lian-Tuan Xiao (肖连团), Suo-Tang Jia (贾锁堂)
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Laser Spectroscopy Laboratory, Shanxi University, Taiyuan 030006, China
Abstract:Our recent progress on developments of laser-induced breakdown spectroscopy (LIBS) based equipments for on-line monitoring of pulverized coal and unburned carbon (UC) level of fly ash are reviewed. A fully software-controlled LIBS equipment comprising a self-cleaning device for on-line coal quality monitoring in power plants is developed. The system features an automated sampling device, which is capable of elemental (C, Ca, Mg, Ti, Si, H, Al, Fe, S, and organic oxygen) and proximate analysis (Qad and Aad) through optimal data processing methods. An automated prototype LIBS apparatus has been developed for possible application to power plants for on-line analysis of UC level in fly ash. New data processing methods are proposed to correct spectral interference and matrix effects, with the accuracy for UC level analysis estimated to be 0.26%.
. Recent progress on laser-induced breakdown spectroscopy for the monitoring of coal quality and unburned carbon in fly ash[J]. Frontiers of Physics, 2012, 7(6): 690-700.
Lei Zhang (张雷), Zhi-Yu Hu (胡志裕), Wang-Bao Yin (尹王保), Dan Huang (黄丹), Wei-Guang Ma (马维光), Lei Dong (董磊), Hong-Peng Wu (武红鹏), Zhi-Xin Li (李志新), Lian-Tuan Xiao (肖连团), Suo-Tang Jia (贾锁堂). Recent progress on laser-induced breakdown spectroscopy for the monitoring of coal quality and unburned carbon in fly ash. Front. Phys. , 2012, 7(6): 690-700.
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