工程科学学报2017，Vol.39Issue(2)：283-293,11.DOI:10.13374/j.issn2095-9389.2017.02.017
高炉休风时供氧管网压力对氧气调度的影响
Effects of oxygen pipe-network pressure on the oxygen scheduling during blast furnace blow-down
摘要
Abstract
To study the scheduling problem in the captive oxygen plant of a large-scale integrated steel mill, a mixed integer line-ar program ( MILP) model was developed to minimize the oxygen emission. On the basic of the model, the oxygen production schedu-ling during blast furnace ( BF) blow-down was studied as a case, and the effect of initial pipe network pressure ( at the beginning of the BF blow down) on the oxygen emission ratio was analyzed. The system presents the oxygen emission when the initial pipe network pressure is larger than a critical value. The oxygen emission ratio increases with the increase of initial pressure in an approximately lin-ear relationship, and the larger the buffer capacity of the high-pressure pipe network, the bigger the slope of this linear relationship. When there is the oxygen emission and for the same initial pressure of high-pressure pipe network, the bigger the buffer capacity of high-pressure pipe network, the smaller the oxygen emission ratio. This relationship tends to become inconspicuous as the initial pres-sure increasing, when the initial pressure is equal to the maximum allowed pressure, the oxygen emission ratio is unaffected by the buffer capacity of the high-pressure pipe network.关键词
钢铁冶金/空分装置/氧气调度/放散率/混合整数规划Key words
iron and steel Metallurgy/air separation unit/oxygen scheduling/emission ratio/mixed integer programming分类
矿业与冶金引用本文复制引用
张培昆,王立..高炉休风时供氧管网压力对氧气调度的影响[J].工程科学学报,2017,39(2):283-293,11.基金项目
国家自然科学基金资助项目(51306015) （51306015）
高等学校博士学科点专项科研基金资助项目(20130006120015) （20130006120015）
