本发明涉及一种精炼废渣回用作转炉造渣剂的工艺方法,属于精炼废渣循环利用技术领域,解决了现有精炼废渣因硫含量高而限制回用、易粉化污染环境以及混合压块成型工艺流程长且成本高的问题。本发明包括以下步骤:步骤1、采用含铁物料调质剂对精炼废渣进行调质处理;步骤2、通过向精炼废渣中通入空气或氧气对精炼废渣进行氧化脱硫处理;步骤3、对精炼废渣进行快速冷却处理;步骤4、将精炼废渣破碎,得到处理后精炼废渣;步骤5、利用处理后精炼废渣造无氟低熔点炉渣进行冶炼。本发明实现了精炼废渣不用混合压块成型就能直接作转炉造渣剂的目的,减少了造渣料的消耗,缩短了冶炼时间,减少了钢渣排放和污染环境,增大钢铁企业的经济效益。
The present invention relates to a process method for reusing refining waste residue as a converter slag making agent, belonging to the field of refining waste residue recycling technology. It solves the problems of limited reuse of existing refining waste residue due to high sulfur content, easy pulverization and pollution of the environment, and long and high cost mixed pressing block forming process. The present invention includes the following steps: step 1, using an iron-containing material conditioner to regulate and treat refining waste slag; Step 2: Oxidize and desulfurize the refining waste residue by introducing air or oxygen into it; Step 3: Conduct rapid cooling treatment on refining waste residue; Step 4: Crush the refining waste residue to obtain the treated refining waste residue; Step 5: Use the treated refining waste slag to produce fluorine-free low melting point slag for smelting. The present invention achieves the goal of directly using refining waste slag as a converter slag forming agent without mixing and pressing, reducing the consumption of slag materials, shortening smelting time, reducing steel slag discharge and environmental pollution, and increasing the economic benefits of steel enterprises.