铬铁粉矿球团化预处理分析
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摘要
介绍了以工程实际采用的南非铬铁矿粉矿、土耳其铬铁矿粉矿为原料,采用磨矿、圆盘造球、干燥预热、氧化焙烧的工艺流程预处理铬铁粉矿,重点研究了铬粉矿、还原剂、粘合剂、预热焙烧温度制度等因素对铬铁粉矿造球的影响。结果表明,采用本工艺流程对铬铁粉矿进行处理,在合适的原料配比、适当的还原剂及粘结剂使用情况下可以得到适合大型铬铁密闭矿热炉冶炼所需的球团矿。
The paper introduced the technological process of chromite ore fine pretreatment includes grinding,disc balling,preheating and drying,oxidation roasting,of which used chromite ore fine from South Africa and Turkey as actual operation. The research was mainly focused on the influence of chromite ore fine,reducing agent,adhesive,preheating and roasting temperature system to the chromite ore fine pelletizing. The results showed that dealing with chromite ore fine in this process can be suitable for large ferrochrome submerged arc furnace in the case of appropriate ratio of raw materials,the proper reducing agent and binder.
The paper introduced the technological process of chromite ore fine pretreatment includes grinding,disc balling,preheating and drying,oxidation roasting,of which used chromite ore fine from South Africa and Turkey as actual operation. The research was mainly focused on the influence of chromite ore fine,reducing agent,adhesive,preheating and roasting temperature system to the chromite ore fine pelletizing. The results showed that dealing with chromite ore fine in this process can be suitable for large ferrochrome submerged arc furnace in the case of appropriate ratio of raw materials,the proper reducing agent and binder.
引文
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[2]邱伟坚.铁合金矿粉冷压球团成球机理及固结[J].铁合金,2003(06):7-10.
[3]贾艳桦等.冷压球团技术在高碳铬铁生产中的应用[J].铁合金,2011(02):4-11.
[4]李志忠.铬矿预还原生产铬铁新工艺[J].铁合金,2011(06):7-9.
[5]陈文国.奥图泰生产高碳铬铁工艺设计实践[J].铁合金,2017(07):1-5.
[6]徐薇等.矩形竖炉生产铬矿球团的研究与实践[J].铁合金,2017(09):31-34.
[7]GB50735-2011,合金工艺及设备设计规范[S].北京:中国计划出版社,2012.
[8]GB50632-2010,铁企业节能设计规范[S].北京:中国计划出版社,2011.
[9]鲍荣华等.2010年南非矿产资源及其开发利用[J].国土资源情报,2011,11:20-24.
[10]王惠永等.中国高碳铬铁产业发展现状浅析[J].铁合金,2016(02):45-48.
[11]李东海.铬铁矿制粒烧结工艺优化研究[D].重庆大学,2012.
[12]朱德庆等.铬铁精矿球团烧结工艺与机理[J].中南大学学报(自然科学版),2010,41(05):1658-1667.
[13]王海娟等.南非铬铁粉矿球团烧结工艺的探索[J].铁合金,2013,44(01):6-11.