Regarding the price of graphite electrodes, whether it is ordinary power products or high-power products, the increase in a certain period of time has exceeded 10%, and the average price can be doubled. Graphite electrodes are mainly made of petroleum coke and needle coke as raw materials, coal tar pitch as a binding agent, calcination, batching, kneading, pressing, roasting, graphitization, and machining. It is a conductor that releases electric energy in the form of an electric arc in an electric arc furnace to heat and melt the charge. According to its quality index, it can be divided into ordinary power graphite electrodes, high power graphite electrodes, and ultra-high power graphite electrodes.
Graphite electrodes are completely different from graphene. Although the names are a little bit different, the properties are far too far. As mentioned above, the graphite electrode is a conductive electrode made of needle coke as the main raw material. Mainly used in electric arc steelmaking furnaces, mine thermoelectric furnaces, resistance furnaces, etc. In the vernacular, graphite electrodes are mainly used for steelmaking, and graphite electrodes for steelmaking account for about 70% to 80% of the total amount of graphite electrodes.
And graphene can be “tall” a lot, known as “black gold”! At present, the average price of graphite electrodes does not exceed about 30,000 yuan per ton, while the price of graphene is as high as 1 million yuan per ton! From an industry perspective, graphite electrodes are also completely different from graphene. Graphite electrodes have already been mass-produced, with a large number of related companies, and a complete industrial chain has been formed upstream and downstream. At present, there are more than 40 companies with graphite electrode production capacity exceeding 10,000 tons in China. The total production capacity of the companies is about 1.1 million tons. The output in 2016 was about 500,000 tons.
From a logical point of view, the concept of graphite electrodes is gradually catching up with the development of electric furnace steelmaking technology. The enlargement of electric furnaces, the increase of electric power per furnace capacity, and the use of DC electric arc furnaces have continuously put forward new requirements for the variety and performance of graphite electrodes. The use of high-power and ultra-high-power electric furnaces for steelmaking can shorten the melting time of the charge, increase production efficiency, reduce power consumption, and reduce the consumption of graphite electrodes.
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