一、前言常规的配料方法需要在每次开炉前分析原材料的化学成份,然后根据经验或半经验公式进行计算。这样,配料的正确与否在很大程度上依赖于化学分析的正确程度,这对于缺乏分析手段或分析数据很不可靠的工厂,很难获得符合要求的铁水。本文根据铁水经多次重熔,其中的元素含量将最终达到平衡值的原理,经过简单的数学推导,得出配料计算的简便方法。使用这种方法,尽管回炉料成份在重熔中不断变化,只要使用基本稳定的其它原材料,可以采用经常不变的配料比例,获得化学成份稳定的铁水。二、估算法的原理及公式 1、每次熔炼铁水成份的计算公式 S=a_xη_回q_回+a_1η_1q_1+a_2η_2q_2+……(1) 式中:a_x、a_1、a_2——分别表示回炉料、生铁、废钢、铁合金中某元素的成份; η_回、η_1、η_2……分别表示回炉料、 I. Preface Conventional ingredients require that the chemical composition of the raw material be analyzed before each firing and then calculated based on empirical or semi-empirical formulas. Thus, the correctness of the ingredients depends largely on the correctness of the chemical analysis, which makes it difficult to obtain the required hot metal for plants that are not reliable for lack of analytical means or analytical data. Based on the principle that molten iron will be remelted several times and the content of elements in it will eventually reach the equilibrium value, a simple mathematical derivation results in a simple and convenient method for calculating ingredients. With this method, a chemically stable hot metal can be obtained with a constant ratio of ingredients, as long as the rest of the feedstock material is constantly changing during remelting, as long as other materials that are substantially stable are used. Second, the principle and formula estimation method 1, each time the formula for calculating the molten iron S = a_xη_ back q_ back + a_1η_1q_1 + a_2η_2q_2 + ... (1) Where: a_x, a_1, a_2-- respectively, back to the charge, Pig iron, scrap, iron alloy in the composition of an element; η_ back, η_1, η_2 ...... respectively, back to the charge,