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在我国,电极制品的石墨化主要采用炭粒发热的直流电阻炉(亦称Acheson炉)进行,半成品电耗较高,达4500～5500kW·h/t;并且,有的工厂的石墨化工序品级率相当低,成品率不足90％,优级品率不足60％。为了增产节能,东北工学院和兰州炭素厂合作,结合大修改造了兰炭2组10~*炉,作为工业试验炉。该炉长14.4m,由三台3340kVA硅整流机组并联供电。在炉体结构、装炉方式、供电制度这三方面进行了技改探索。所采用的主要技措有11
In China, the graphitization of electrode products is mainly carried out by the carbon resistance heating furnace (also known as Acheson furnace), semi-finished products higher power consumption, reaching 4500 ~ 5500kW · h / t; and, some factories graphitization process grade The rate is quite low, the finished product rate is less than 90%, the excellent product rate is less than 60%. In order to increase energy efficiency, Northeastern University of Technology and Lanzhou Carbon Factory cooperation, combined with overhaul modified Lanzheng 2 10 ~ * furnace, as an industrial test furnace. The furnace length 14.4m, by the three 3340kVA silicon rectifier units in parallel power supply. In the furnace structure, loading furnace, power supply system in these three areas to explore technological innovation. The main technical measures adopted are 11