论文部分内容阅读
要降低钢铁的总能耗,与铁矿石原料有密切关系,但矿山如何节能,却往往被忽视。本文试图通过对选矿厂能源构成的分析,探讨铁矿选矿生产的节能。一、选矿能耗在钢铁生产总能耗中的■量我国■矿平均含铁32%,要2.5吨原矿选1吨铁精矿,要4吨原矿炼1吨铁,4.3吨原矿产1吨钢。按此通过统计和计算,从采矿到钢材吨钢的总能耗为1.75吨标煤,图1为钢材生产各个过程的能耗比例。得知吨钢总能耗中选矿占6～7%,是
To reduce the total energy consumption of steel, and iron ore raw materials are closely related, but how to save energy, but are often overlooked. This paper attempts to analyze the energy composition of the concentrator to explore energy-saving iron ore beneficiation production. First, the total energy consumption of mineral processing in the steel production in the amount of ■ China’s mine average iron content of 32%, to 2.5 tons of ore to pick 1 ton of iron concentrate, to 4 tons of ore refining 1 ton of iron, 4.3 tons of raw ore 1 ton steel. According to this, through statistics and calculations, the total energy consumption from mining to steel ton of steel is 1.75 tons of standard coal, Figure 1 shows the proportion of energy consumption in each process of steel production. It is learned that the total energy consumption per ton of steel beneficiation accounted for 6 to 7%