Liu Ran, Wang Xingjuan, Liang Chunchao, Lü Qing, Zhang Shuhui, Du Linsen, Feng Shuai. Research on the Influence of Preheating on Combustion Characteristics of Pulverized Coal[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(2): 82-86. doi: 10.7513/j.issn.1004-7638.2014.02.016
Citation:
Liu Ran, Wang Xingjuan, Liang Chunchao, Lü Qing, Zhang Shuhui, Du Linsen, Feng Shuai. Research on the Influence of Preheating on Combustion Characteristics of Pulverized Coal[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(2): 82-86. doi: 10.7513/j.issn.1004-7638.2014.02.016
Liu Ran, Wang Xingjuan, Liang Chunchao, Lü Qing, Zhang Shuhui, Du Linsen, Feng Shuai. Research on the Influence of Preheating on Combustion Characteristics of Pulverized Coal[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(2): 82-86. doi: 10.7513/j.issn.1004-7638.2014.02.016
Citation:
Liu Ran, Wang Xingjuan, Liang Chunchao, Lü Qing, Zhang Shuhui, Du Linsen, Feng Shuai. Research on the Influence of Preheating on Combustion Characteristics of Pulverized Coal[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(2): 82-86. doi: 10.7513/j.issn.1004-7638.2014.02.016
By using two kinds of pulverized coal(namely,bitumite JM and anthracite FD) for BF injection from Handan Iron and Steel Co.,Ltd.as raw materials,the differential thermal analysis(DTA) of the pulverized coal preheated under different temperature was carried out and its combustion ratio determined.Experimental results show that the weight loss start temperatures of the two kinds of the pulverized coal are approximately the same at about 50℃.Without preheating,the weight loss finish temperature of JM is about 470℃,and FD about 640℃,while in the case of preheating at 300℃,the former decrease to about 460℃,and the latter to about 620℃.After preheating,the pulverized coal's surface structures have noticeably changed,and the increase of layered and pore structures results in improvement of combustion ratio.
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