The invention relates to the dry type tamping material field for the medium frequency furnace nozzle, especially a dry type tamping material for reducing the production cost and obviously improving the economic benefit of the medium frequency furnace nozzle and the preparation method. The ramming material is composed of the following components according to the mass percentage: the ramming material of the recovery furnace is 75 to 85%, and the waste magnesia is tied up. The material is 10% to 25%, the silicon powder is 2% to 5%, and the flux is 0.5% to 1%. The invention adopts the recovered ramming material and the magnesia knotting material as the main raw material, and makes full use of the abandoned two resources to achieve good environmental protection benefits. At the same time, the cost of production has been greatly reduced and the economic benefits have been remarkable. At present, it is widely used in the smelting of medium frequency induction furnace, and has a very broad prospect of market promotion. This invention is especially suitable for the preparation of dry ramming material for medium frequency furnace nozzle.
【技术实现步骤摘要】
中频炉炉嘴用干式捣打料及其制备方法
本专利技术涉及中频炉炉嘴用干式捣打料领域,尤其是一种中频炉炉嘴用干式捣打料及其制备方法。
技术介绍
随着经济的发展,中频感应炉冶炼已经越来越普遍,其已成为铸造行业、不锈钢冶炼行业以及特种合金冶炼的主要冶炼设备之一。中频感应炉炉衬质量的好坏直接决定其使用寿命以及生产效率的高低。中频炉冶炼相比其他冶炼工艺具有流程短,生产调节方便的特性,但是中频炉结构复杂,感应线圈通水冷却,对中频炉捣打料质量要求较高。如果干式捣打料质量不好,极易出现漏钢、爆炸等安全事故。随着短流程炼钢以及不锈钢冶炼的快速发展,对高质量的中频炉干式捣打料需求量越来越大。目前,中频炉炉嘴用干式捣打料普遍采用炉体用捣打料进行打结,但该方式生产成本过高,且寿命较低。在当前的钢铁行业形势下,在保证捣打料质量的同时,如何有效降低中频炉炉嘴捣打料生产成本及提高其使用寿命尤为重要。
技术实现思路
本专利技术所要解决的技术问题是提供一种充分降低生产成本,并且明显提高经济效益的中频炉炉嘴用干式捣打料及其制备方法。本专利技术解决其技术问题所采用的技术方案是:中频炉炉嘴用干式捣打料,所述捣打料按质量百分比计由以下的组分构成:回收炉体捣打料75~85%、废镁质打结料10%~25%、硅微粉2%~5%、助熔剂0.5%~1%。进一步的是,所述回收炉体捣打料颗粒粒级0~12mm。进一步的是,所述回收炉体捣打料的化学成分为SiO2≥98%、CaO+MgO≤0.1%、Fe2O3≤0.2%。进一步的是,所述废镁质打结料的化学成分为MgO≥85%。进一步的是,硅微粉SiO2≥92%。进一步的是,中频炉炉 ...
【技术保护点】
中频炉炉嘴用干式捣打料,其特征在于:所述捣打料按质量百分比计由以下的组分构成:回收炉体捣打料75~85%、废镁质打结料10%~25%、硅微粉2%~5%、助熔剂0.5%~1%。
【技术特征摘要】
1.中频炉炉嘴用干式捣打料,其特征在于:所述捣打料按质量百分比计由以下的组分构成:回收炉体捣打料75~85%、废镁质打结料10%~25%、硅微粉2%~5%、助熔剂0.5%~1%。2.如权利要求1所述的中频炉炉嘴用干式捣打料,其特征在于:所述回收炉体捣打料颗粒粒级0~12mm。3.如权利要求1所述的中频炉炉嘴用干式捣打料,其特征在于:所述回收炉体捣打料的化学成分为SiO2≥98%、Ca...
【专利技术属性】
技术研发人员:黎光正,陈涛,毛朋,袁兵,
申请(专利权)人:攀枝花钢城集团有限公司,
类型:发明
国别省市:四川,51
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