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在钢铁形势日趋严峻的当下,节能减排是烧结厂得以生存的必由之路。基于物料平衡和热平衡原理建立的烧结工序流评价模型,可以从宏观和微观两方面反映出烧结工序的流走向,从而挖掘其节能潜力所在。对某一典型烧结厂的流分析研究结果表明,该烧结过程固体燃料和混合料的分别占收入的73.59%和17.28%,热烧结矿的物理、烧结机损和烟气的热量分别占支出的47.42%、30.34%和21.63%,该烧结工艺的普遍效率和目的效率分别为69.66%和48.02%,具有较大的节能潜力。可以采用优化配矿、厚料层烧结、烟气循环烧结、余热发电等技术措施来提高效率,最终实现烧结工序节能减排的目的。
At a time when the steel industry is getting tougher, energy conservation and emission reduction are the only ways for sinter plants to survive. Based on the principle of material balance and heat balance, the sintering process and flow evaluation model can reflect the flow direction of sintering process in macroscopical and microscopic ways, so as to excavate the potential of energy saving. The result of flow analysis of a typical sinter plant shows that the solid fuel and mixture in the sintering process account for 73.59% and 17.28% of the revenue, respectively. The physical properties of the sinter, the sintering machine and the flue gas heat, Accounting for 47.42%, 30.34% and 21.63% of their respective expenditures. The general, efficiency and purpose efficiency of the sintering process are 69.66% and 48.02%, respectively, which has great potential for energy saving. Optimization of ore distribution, thick material layer sintering, flue gas cycle sintering, waste heat power generation and other technical measures to improve efficiency, and ultimately achieve the purpose of energy-saving emission reduction sintering process.