(1) for electric arc furnace
Electric furnace steelmaking is the largest use of High Power Graphite Electrodes. The output of electric furnace steel in China accounts for about 18% of the output of crude steel, and the graphite electrode for steelmaking accounts for 70%-80% of the total amount of graphite electrode. Electric furnace steelmaking uses a graphite electrode to introduce a current into the furnace, and smelting is performed by a high-temperature heat source generated by an arc between the electrode end and the charge.
(2) used in mine electric furnace
The ore furnace is mainly used for the production of industrial silicon and yellow phosphorus. It is characterized in that the lower part of the conductive electrode is buried in the charge, an arc is formed in the layer, and the charge is heated by the heat generated by the resistance of the charge itself, wherein the current is required. Ultra High Power Graphite Electrodes are required for higher density electric furnaces. For example, about 100 kg of graphite electrode is consumed for every 1 t of silicon produced, and about 40 kg of graphite electrode is consumed for each 1 t of yellow phosphorus.
(3) for resistance furnace
The graphitization furnace for producing graphite products, the melting furnace for melting glass, and the electric furnace for producing silicon carbide are all electric resistance furnaces. The materials contained in the furnace are both heating resistors and objects to be heated. Usually, graphite electrodes for electric conduction are embedded in the resistance furnace end. In the furnace wall of the department, the graphite electrode used here is not continuously consumed.
(4) For the preparation of shaped graphite products
The graphite electrode blank is also used to process a variety of shaped graphite products such as enamel, mold, boat and heating element. For example, in the quartz glass industry, for every 1 t of the electrofusion tube, a graphite electrode blank is required to be 10 t; for each 1 t of quartz brick, a graphite electrode billet of 100 kg is consumed.
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