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莱钢1880 m~3高炉在国内最先采用了粒煤喷吹技术。前期试喷吹未达到预期目标。通过采取改进高炉操作、加湿富氧、维持合适的理论燃烧温度、加强原燃料管理以及改进设备等措施,且经工业试验,使其粒煤吨铁喷吹比达90 kg、焦比达440 kg。为进一步提高粒煤喷吹比奠定了基础。
Laiwu Steel 1880 m ~ 3 blast furnace in the country adopted the first coal injection technology. Pre-test injection did not meet the expected target. By adopting measures such as improving blast furnace operation, humidifying and oxygen enrichment, maintaining proper theoretical combustion temperature, strengthening raw fuel management and improving equipment, etc., and through industrial tests, the coal injection ratio of coal, coal and iron is 90 kg and the coke ratio is 440 kg . In order to further improve the injection of coal laid the foundation.