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首页> 外文会议>National Seminar on "Application of Chemical Engineering for Utilisation of Natural Resources (CHEMINAR-2001)", Feb 16-18, 2001, Bhubaneswar >Utilisation of LD Slag in Sintermaking
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Utilisation of LD Slag in Sintermaking

机译：LD战斗在烧结厂中的运用

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The steel making in Integrated Steel plant is carried out in several unit processes each producing one or other by-products many of which are rich in iron, flux and fuel value. Dumping of these costs money, indicates improper utilisation of natural resources, causes deterioration of environment and puts it in the category of waste. Recycling of these converts waste into value. The environmental awareness and recognition of the mineral values in wastes have resulted in attempts of its recycling and recovering the associated mineral up to the extent possible. Sinter plant, which originally was developed to convert the waste iron ore fines into blast furnace feed further offers for converting steel plant wastes into value by allowing recycling of a large number of wastes in various quantities through sinter without appreciably impairing its performance and product quality. Among by-products of steel plant the LD slag figures predominantly for its bulk, mineral value and cost saving potential. The high lime content of this material makes it an ideal replacement for limestone. Besides calcium oxide the reasonably high content of iron oxide makes it further attractive. The phosphorus content is coming in the way as a restricting parameter for its use. Utilisation of LD slag decreases the cost of sinter produced and hence the cost of steel made. Today almost all the steel plants of the world are utilising LD slag as a replacement of limestone in sintermaking feed material. Present paper outlines its generation, characterisation, the quantity being utilised through sinter at Tata Steel and discusses its influence on sintering and highlights the technical problems, which restricts its further recycling.
机译：综合钢铁厂的炼钢是通过几个单元过程进行的，每个过程都会生产一种或其他副产品，其中许多副产品富含铁，助熔剂和燃料。倾销这些东西要花钱，表明对自然资源的利用不当，导致环境恶化，并将其归类为废物。这些废物的回收将废物转化为价值。环保意识和对废物中矿物质价值的认可导致人们试图对其进行回收和尽可能多地回收相关矿物质。烧结厂最初是将废铁矿石粉转化为高炉原料而开发的，它还提供了将钢铁厂废料转化为价值的方法，该方法允许通过烧结回收大量不同数量的废料，而不会明显损害其性能和产品质量。在钢铁厂的副产品中，LD炉渣的主要来源是其体积，矿物价值和节省成本的潜力。这种材料的高石灰含量使其成为石灰石的理想替代品。除氧化钙外，合理高含量的氧化铁使其更具吸引力。磷的含量成为其使用的限制参数。 LD渣的利用降低了生产烧结矿的成本，从而降低了钢铁的成本。如今，世界上几乎所有的钢铁厂都在用LD炉渣代替烧结矿原料中的石灰石。本文概述了它的产生，特性，塔塔钢铁公司通过烧结利用的数量，并讨论了其对烧结的影响，并着重指出了技术问题，从而限制了其进一步的回收利用。

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