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一、改造锻造加热炉,提高热效率我国机械工业中,各类锻造加热炉约一万余台,每年耗用能源折成标准煤约为80～100万吨,其中燃料油约占30～40％。长期以来,由于能源基础工作差,炉型结构陈旧,燃烧系统不完善,烟道余热不回收。散热损失大,热工操作不培训,生产安排不均衡等等。锻造加热的热效率十分落后,全国平均计算锻造加热炉的热效率在5％左右,同先进工业国相比约低2～5倍。我厂三台室式加热炉,分别同三吨自由锻锤、1500吨机械压力机、560公斤,400公斤两台空气锤配套。在改造前,每吨锻件耗重
First, the transformation forging furnace, improve thermal efficiency China’s machinery industry, all kinds of forging furnace about more than 10,000 units, annual energy consumption converted into standard coal is about 80 to 1 million tons, of which fuel oil accounts for about 30 to 40% . For a long time, due to poor energy base work, the old furnace structure, the combustion system is not perfect, the flue heat is not recycled. Heat loss, thermal operation is not training, production scheduling is not balanced and so on. Forging heating thermal efficiency is very backward, the average calculated forging furnace thermal efficiency at about 5%, compared with advanced industrial countries about 2 to 5 times lower. I plant three room-type furnace, respectively, with three tons of free forging hammer, 1500 tons of mechanical presses, 560 kg, 400 kg two air hammer matching. Before the transformation, the weight per ton of forging