偏心底出钢(EBT)电弧炉冶炼工艺（The smelting process of the steel (EBT) arc furnace）.doc

偏心底出钢(EBT)电弧炉冶炼工艺（The smelting process of the steel (EBT) arc furnace） Even partial decarburization to melt period ahead of schedule, and after melt oxidation refining and heating period only and is not suitable for the control of carbon in the charging period to join more easily oxidation and add quantity larger ferroalloy melt, to shorten the smelting cycle, reduce consumption, increase productivity special favor. The EBT electric furnace is used for the retention of steel residue. The molten pool is readily available at the beginning of the melting, which can be used to strengthen the blowing oxygen and the bottom blow, so as to provide a good condition for the early metallurgical reaction. From improve productivity and reduce the consumption into consideration, melt furnace with the shortest time and fastest speed and the least amount of auxiliary time fill (such as a furnace, charging, replacing electrode, tapping, etc.), In order to achieve the best economic benefit. (1) rapid melting and temperature rise is the most important function of the current arc furnace, and the first basket of scrap steel is added to the furnace, and the process begins. To melt scrap steel in the shortest possible time and make the liquid steel temperature of steel tapping temperature, generally USES the following in the EBT electric furnace to complete: with maximum possible power supply, a burner to fuse and oxygen blowing oxygen melting and mixing, bottom blowing stirring, slag foaming, and other techniques such as strengthening smelting and warming. These are all aimed at achieving the ultimate metallurgical target, which is the premise that the composition and temperature of the outside refining are in accordance with the requirements of the initial steelmaking liquid, so there should be good metallurgical operation. (2) the three elements of dephosphorization operation of dephosphorization are the key factors for the distribution of phosphorus in slag steel: oxidation, lime con