The advantages of carbon electrodes for furnaces mainly include the following aspects:
High cost-effectiveness: The production of carbon electrodes does not require graphitization process, so the cost is low. The construction cost of graphitization workshop is high, and the subsequent capacity expansion fee and power supply are involved; in addition, graphitization consumes a lot of electricity, which increases the production cost. In contrast, carbon electrodes do not need graphitization and are cheaper than graphite electrodes.
Excellent conductivity: The carbon electrode has low resistivity, low electrode self-consumption, high volume density, low ash content, good antioxidant performance, and significant power saving. In use, it can improve the thermal efficiency of the submerged arc furnace, shorten the smelting time, and increase the output.
Excellent environmental protection performance: Carbon electrodes are not easy to break hard during use, and soft break can be eliminated, with less unnatural loss. In addition, carbon electrodes can reduce environmental pollution by replacing electrode paste, because electrode paste will emit a large amount of asphalt fume during use, which seriously pollutes the environment and affects human health.
Wide range of applications: Carbon electrodes are suitable for various submerged arc furnaces, especially in the production of industrial silicon, ferroalloys, calcium carbide, yellow phosphorus and other metal or non-metal smelting processes. Its physical and chemical indicators can fully meet the requirements of downstream industries for production of products, and have great potential to replace graphite electrodes and electrode paste