焦化工序水流图构建及其应用分析

来源期刊：钢铁2010年第7期

论文作者：董辉 喻志强 肖圣雁 杜涛 蔡九菊

文章页码：89 - 93

关键词：焦化工序； 水循环； 物质流； 水流图； 用水评价指标

Key words：coking process； water cycle； material flow； water flow chart； evaluation index of water-using

摘    要：运用物质流分析理论中的跟踪观察法(即拉格朗日法),借鉴系统节能分析方法中的中小循环理论,根据焦化工序的工艺流程特点构建了钢铁企业焦化工序水流图及其用水评价指标,在此基础上对钢铁企业焦化工序的用水情况进行了分析。并通过对某钢铁企业焦化厂2008年数据的调研与分析,构建了该厂焦化工序的水流图和用水评价指标,借助水流图和评价指标对其用水情况进行分析评价,指出其用水现状和存在的不足,对其用水系统进行优化,优化前后的对比表明:需要补充的工业新水量减少了0.554 m³/t(焦);外排废水量减少了0.264 m³/t(焦);水的资源效率增加了21.25;水的环境效率增大63.09 t/m³,结果表明此方法对于焦化工序节水和用水优化有很好的指导作用。

Abstract: Based on the work flow of coking process,the water flow chart of coking process was built and its valuation index of water-using was confirmed by using the tracking observation principle(the Lagrangian principle) of the material flow analysis theory combined with medium and small cycle theory of system energy conservation.Based on the work above mentioned,the water-using situation of coking process in the iron and steel corporation was analyzed.Through investigation and analysis of the data of the coking process in a certain iron and steel enterprises in 2008,the water flow chart and valuation index of water-using of coking process was built,its water-using situation and the deficiencies of water system were analyzed and evaluated.The comparison show that:the amount of new industrial water decreases by 0.554 m³/t(coke),efflux wastewater decreases by 0.264 m³/t(coke),water resource efficiency increases by 21.25,water environmental efficiency increases by 63.09 t/m³.The results indicate that this method has certain directive significance to the water-saving and water-using optimization of coking process.