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一、前言 近年来,高炉正向着大型化方向发展。截止目前为止日本共投产有效容积4000立米级以上的大型高炉12座,尚有3座在建设之中。包括建设中的高炉目前世界上共有约24座4000立米级的大型高炉。与此同时高炉炉顶煤气压力也增加到1.5～2.5公斤/厘米~2。因此采用膨胀透平发电装置把高炉炉顶煤气压力的潜在能量转换成电能供给电网,是节省钢铁工业能源消耗的一个重要措施。利用这种方法,一座有效容积4000立米,日产生铁10000吨,以2.0公斤/厘米~2的炉顶压力操作的高炉可回收12000瓩的电能。国外从1962年起就开始了这项技术的试验,现已获得成
First, the foreword In recent years, the blast furnace is toward large-scale development. So far Japan has put into operation a total of 12 large-scale blast furnaces with an effective volume of more than 4,000 cubic meters, with 3 still under construction. Including the blast furnace under construction There are currently about 24 4000-meter-long large-scale blast furnaces in the world. At the same time blast furnace top gas pressure also increased to 1.5 ~ 2.5 kg / cm ~ 2. Therefore, it is an important measure to save the energy consumption of the steel industry by converting the potential energy of blast furnace top gas pressure into electrical energy by using an expansion turbine power generation device. Using this method, an effective volume of 4000 cubic meters, the daily output of 10,000 tons of iron, with a roof pressure of 2.0 kg / cm ~ 2 operating blast furnace can recover 12,000 瓩 of electricity. Foreign countries have been experimenting with this technology since 1962 and have now achieved success