Method for producing high-silicon furnace charge ferrochrome by submerged arc furnace

The invention relates to a method for producing high-silicon furnace charge ferrochrome by a submerged arc furnace, which comprises the following specific steps: S1, the furnace charge uses 100% chromium ore roasted pellets as a source of chromium element, coke, silica and dolomite are mixed and then enter a preheating kiln to meet flue gas generated after combustion of coal gas generated by the electric furnace, the furnace charge is heated to 500-600 DEG C after reverse movement, and the furnace charge is cooled to the room temperature; the materials enter the submerged arc furnace through a material pipe; s2, elements such as Fe, Cr, Si, S and P are sequentially reduced to enter iron, refractory oxides such as silicon dioxide, aluminum oxide, magnesium oxide and calcium oxide are subjected to slagging to form slag, and the slag and the iron are layered in the furnace; and S3, after the electricity consumption reaches 120-160 MWh, molten iron and furnace slag are discharged, the molten iron is stored in a l