The Mechanism of Coking Pressure Generation II: Effect of Low Rank Coking Coal, Semi-Anthracite and Coke Breeze on Coking Pressure and Contraction
One of the most important considerations in designing a coal blend is to limit the oven wall pressure generated during coking so that battery life is maximized. The effect of semi-coke contraction on coking pressure and the effect of organic additives on contraction have been studied. A link between contraction of the resolidifying coal/semi-coke and coking pressure has been demonstrated. The interaction between this contraction and the local bulk density in and around the plastic layer, which influences the permeability of the plastic layer, is discussed as a possible mechanism for the generation of coking pressure. The effect on semi-coke contraction and coking pressure of blending a low rank coal and semi-anthracite coals with high rank, high coking pressure coals is also discussed. As various researchers have demonstrated relationships between semi-coke contraction and ease of pushing, these studies are also potentially relevant in assessing oven pushing difficulties.
coking pressure carbonization coke oven cokemaking plastic layer permeability contraction
Mahoney Merrick Nomura Seiji Fukuda Koichi Kato Kenji Le Bas Anthony Jenkins David McGuire Sid
BHP Billiton Technology, Newcastle Technology Centre, off Vale St Shortland, NSW 2307, Australia Nippon Steel Corporation, Environment and Process Technology Center, 20-1, Shintomi, Futtsu, Chiba 2 CSIRO, Mathematical and Information Sciences, Macquarie University Campus, North Ryde, NSW. 1670, Au BHP Billiton Mitsubishi Alliance, GPO Box 1389 Brisbane, Qld 4001, Australia
国际会议
The 5th International Congress on the Science and Technology of Ironmaking(第五届国际炼铁科技大会 ICSTI09)
上海
英文
392-395
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）