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首钢股份焦粉粒级优化实践

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为提高烧结矿产量和质量、优化烧结机参数,采用对辊+四辊破碎工艺替代原有对辊破碎工艺.通过一系列工艺改进措施,焦粉粒级+5 mm含量由20.16%降至9.45%,-3 mm粒级含量由62.98%增加至70.64%;烧结机参数得到优化,其中终点温度降低17.13℃,总管温度降低9.15℃;烧结矿产量提高140 t/d,转鼓强度提高1.24%,平均粒径提高0.45 mm,-10 mm粒级含量降低1.02%,燃耗降低0.72kg/t.
Practice of Particle Size Optimization of Coke Powder in Shougang
In order to improve the output and quality of sinter and optimize the parameters of sinter machine,the double-roll+four-roll crushing process is adopted to replace the original double-roll crushing process. Through a series of measures,the content of coke powder with a size of+5mm decreases from 20.16% to 9.45%,and the content of coke powder with a size of-3mm increases to 70.64% from 62.98%. The parameters of the sinter machine are optimized,the end point temperature is reduced by 17.13 ℃ and the main tube temperature is reduced by 9.15 ℃. The sinter output increases by 140 tons/day,the drum strength increases by 1.24%,the average particle size increases by 0.45 mm,the content of-10 mm particle size decreases by 1.02%,and the fuel consumption decreases by 0.72 kg/t.

fuel particle sizefour-roll crushingsintercoke powderparameter optimization

贺道山、朱旺、郑雅青、周建沣、翟登科、马怀营

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北京首钢股份有限公司,河北 唐山064404

首钢集团有限公司技术研究院,北京100043

燃料粒级 四辊破碎 烧结矿 焦粉 参数优化

2024

矿业工程
中冶北方工程技术有限公司,中国冶金矿山企业协会

矿业工程

影响因子:0.282
ISSN:1671-8550
年,卷(期):2024.22(5)