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新一代电弧炉——竖炉电弧炉的问世,已引起全世界钢铁界的极大关注,本报将搜集到的有关情况报道如下。 80年代,电弧炉炼钢技术迅速发展,奋斗的目标是:每炉冶炼时间低于1小时,每吨钢电极消耗低于2kg,每吨钢电耗低于400kWh。90年代,电弧炉技术又出现了一项重要的新发展——竖炉电弧炉。 众所周知,电弧炉废气带走的能量相当于150kWh/t,而用于预热废钢最多可回收30～ 40kWh/t。因此,充分利用废气中热量是降低电耗最有效的措施。
The advent of a new generation of electric arc furnace - shaft furnace electric arc furnace has caused great concern around the world steel industry, the newspaper will collect the relevant information reported below. In the 1980s, the EAF steelmaking technology developed rapidly. The goals of the struggle were as follows: the smelting time per furnace was less than 1 hour, the consumption per ton of steel electrode was less than 2kg, and the power consumption per ton of steel was less than 400kWh. In the 1990s, there was another important development of electric arc furnace technology - shaft furnace. As we all know, electric arc furnace exhaust energy to take the equivalent of 150kWh / t, and used to preheat scrap up to 30 ~ 40kWh / t. Therefore, taking full advantage of the heat in the exhaust gas is the most effective measure to reduce power consumption.