Graphite electrode application
(1) For electric arc steelmaking furnace
Electric furnace steelmaking is a major user of graphite electrodes. my country's electric furnace steel production accounts for about 18% of crude steel production, and graphite electrodes for steelmaking account for 70% to 80% of the total amount of graphite electrodes. Electric furnace steelmaking is to use graphite electrodes to introduce current into the furnace, and use the high-temperature heat source generated by the arc between the electrode end and the charge to smelt.
(2) for submerged thermal electric furnace
The submerged arc furnace is mainly used for the production of industrial silicon and yellow phosphorus. Graphite electrodes are required for submerged thermal electric furnaces with high density. For example, about 100kg of graphite electrodes are consumed per 1t of silicon produced, and about 40kg of graphite electrodes are consumed per 1t of yellow phosphorus produced.
(3) For resistance furnace
Graphitization furnaces for the production of graphite products, furnaces for melting glass and electric furnaces for the production of silicon carbide are all resistance furnaces. The materials in the furnaces are both heating resistors and objects to be heated. Usually, conductive graphite electrodes are embedded in the end of the resistance furnace. In the furnace head wall of the upper part, the graphite electrodes used here are not continuously consumed.
(4) For the preparation of special-shaped graphite products
The blanks of graphite electrodes are also used for processing into various shaped graphite products such as crucibles, molds, boats and heating elements. For example, in the quartz glass industry, 10t of graphite electrode blanks are required to produce 1t of fused tubes; 100kg of graphite electrode blanks are required to be produced for each 1t of quartz bricks.
