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近几年来,梅山高炉工作者着重加强原料准备和改进高炉操作。为改善烧结矿质量,在实验室进行了一系列改善烧结矿冶金性能的试验,并改进了烧结生产工艺(如改进点火器、增添保温段、严格控制点火温度、提高碱度、增加料层厚度和增加梅山精矿粉配比等)。在烧结矿强度不变的情况下,FeO含量由13%降至11%左右,提高了烧结矿的还原性;同时在装入高炉前进行过筛,减少入炉粉末。在高炉工艺操作方面,认真总结分析了高炉的冶炼规律和调节规律,运用上下部调剂谋求最有利的操作制度,以实现合理的炉料分布和煤气流分布,在保持炉料顺行的情况,不断地提高煤气能
In recent years, Meishan blast furnace workers focus on strengthening raw material preparation and improvement of blast furnace operation. In order to improve the quality of sinter, a series of tests have been carried out in the laboratory to improve the metallurgical properties of sinter and improve the sintering production process (such as improving igniter, adding insulation section, strictly controlling ignition temperature, raising alkalinity, increasing material thickness And increase Meishan concentrate ratio, etc.). In the same intensity of sinter, FeO content decreased from 13% to 11%, improve the sinter ore reducibility; at the same time before loading into the blast sieve to reduce the furnace powder. In the blast furnace process operation, the blast furnace smelting law and regulation are conscientiously summaried, and the most favorable operation system is adjusted by adjusting the upper and lower parts so as to achieve reasonable charge distribution and gas flow distribution. While keeping the charge flowing smoothly, Improve gas energy