(1) The production cycle is long. The production cycle of ordinary power graphite electrodes is about 45 days, the production cycle of ultra-high power graphite electrodes reaches more than 70 days, and the production cycle of graphite electrode joints that require multiple impregnations is longer.
(2) High energy consumption. It takes about 6000kW · h to produce 1t graphite graphite electrode with normal power, thousands of cubic meters of gas or natural gas, and about 1t of metallurgical coke particles and metallurgical coke powder.
(3) There are many production processes. The production process includes raw material calcination, crushing and milling, batching, kneading, molding, roasting, impregnation, graphitization, and mechanical processing.
(4) A certain amount of dust and harmful gases are generated during the production process, and it is necessary to take perfect ventilation and dust reduction and environmental protection measures to eliminate harmful gases.