In the configuration of Graphite Electrodes for Steelmaking Electric Arc Furnaces, it is necessary to follow the basic principle of “normal power electric furnaces with ordinary power graphite electrodes, high-power electric furnaces with high-power graphite electrodes, and ultra-high-power electric furnaces with ultra-high-power graphite electrodes“.
Configuration Scheme of the Graphite Electrode for AC Steelmaking Electric Arc Furnace
For AC steelmaking electric arc furnace,
- The 10~30t electric furnace is equipped with graphite electrodes with a diameter of 300~400mm.
- The 30-50t electric furnace is equipped with graphite electrodes with a diameter of 450mm.
- The 60~80t electric furnace is equipped with graphite electrodes with a diameter of 500mm.
- The 100~170t electric furnace is equipped with graphite electrodes with a diameter of 550~600mm.
- The 200t electric furnace is equipped with graphite electrodes with a diameter of 600~700mm.
- The 250~300t electric furnace is equipped with a 700mm diameter graphite electrode.
Configuration Scheme of the Graphite Electrodes for DC Steelmaking Electric Arc Furnace
For DC steelmaking electric arc furnace,
- The 30t electric furnace is equipped with graphite electrodes with a diameter of 450mm.
- The 60t electric furnace is equipped with graphite electrodes with a diameter of 500mm.
- 70~80t electric furnace is equipped with graphite electrodes with a diameter of 600mm.
- The 100~130t electric furnace is equipped with a 700mm diameter graphite electrode.
- The 150t electric furnace is equipped with graphite electrodes with a diameter of 750mm.
Rongsheng Group, one of the graphite electrodes suppliers, provides you with Graphite Electrodes for Steelmaking Electric Arc Furnaces.
FAQ1 How to choose the electrode correctly in the electric arc furnace steelmaking?
According to the design characteristics of the electric arc furnace, reasonably select the electrode that meets the production of the electric arc furnace, and select the product with the best cost performance. It is very necessary to carefully select the electrode suitable for each furnace. The special performance of the steelmaking furnace, the feeding method, the maximum current intensity, the length of the electrode column under the holder, the distance between the sidewall of the furnace and the electrode circumference, etc., are all factors that must be considered when choosing the electrode for the electric arc furnace.
FAQ2 Why is the electrode required to be parallel and centered with the top hole of the furnace cover when steelmaking in an electric arc furnace?
The electrode column and the top hole of the furnace cover should be centered. The electrode column should avoid friction with the furnace cover, otherwise, friction with the furnace cover during lifting and lowering will cause the furnace cover to break the electrode. For AC furnaces, the three-phase electrode columns should be kept as parallel as possible.
FAQ3 What effect does the resistivity performance have on the use of electrodes in steelmaking?
The resistivity of the graphite electrode is a physical index that reflects the conductivity of the electrode and is related to the manufacturing process of the electrode. The country has qualitatively specified values for the resistivity of graphite electrodes of different specifications. Generally speaking, when steel mills choose electrodes of certain specifications, they must choose the resistivity range specified by the national metallurgical standards. Too high resistivity will cause the electrode to become red and hot when it is energized, and increase electrode oxidation consumption.