1. Used in electric arc steelmaking furnace. Electric furnace steelmaking is a big user of graphite electrodes. The output of electric furnace steel in my country accounts for about 18% of the output of vinegar tanks, and graphite electrodes for steelmaking account for 70% to 80% of the total consumption of graphite electrodes. Electric furnace steelmaking uses graphite electrodes to introduce current into the furnace, and uses the high temperature heat source generated by the arc between the electrode end and the charge for smelting. At present, the domestic consumption of graphite electrodes per ton of electric furnace steel is 1.5-6kg. In 2004, the output of electric furnace steel in my country was 45 million tons, and electric furnace steelmaking needs 150,000 to 200,000 tons of graphite electrodes.

2. Used in ore thermal electric furnace. The submerged electric furnace is mainly used to produce industrial silicon and yellow phosphorus. Its characteristic is that the lower part of the conductive electrode is buried in the charge, forming an arc in the charge layer, and using the heat energy emitted by the resistance of the charge itself to heat the charge, which requires current The higher density submerged electric furnace needs graphite electrodes. For example, it consumes about 199kg of graphite electrode to produce 1t of silicon, and about 40kg of graphite electrode is needed to produce 1t of yellow phosphorus.

Main application areas of graphite electrodes

3. For resistance furnace. Graphitization furnaces for the production of graphite products, melting furnaces for melting glass, and electric furnaces for the production of silicon carbide are all resistance furnaces. The materials in the furnace are both heating resistors and objects to be heated. Generally, conductive graphite electrodes are embedded at the end of the resistance furnace. In the furnace head wall of the part, the graphite electrode used here is discontinuously consumed.

4. Used to prepare special-shaped graphite products. The blanks of graphite electrodes are also used for processing into various crucibles, molds, boats and heating elements and other special-shaped graphite products. For example, in the quartz glass industry, 10t of graphite electrode blank is required for every 1t of fused tube produced; 100kg of graphite electrode blank is required for every 1t of quartz brick produced.

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