Феррохрогм ФХ850(А)

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Феррохрогм ФХ850(А)

High Carbon Ferrochrome / Charge Chrome are produced in Submerged Electric Arc Furnace. We have 2 furnaces in-line with a name plate capacity of 45 MVA & 33 MVA with a combined annual capacity of producing 142 KTPA of High Carbon Ferro Chrome. The furnace is stationary and is semi-closed on top.

The process adopted is high temperature smelting process, in which chrome ore is reduced with the help of the reductant like coke. The gangue material in the ore is removed by suitable fluxing material. The raw materials like chrome ore, coke and fluxes are selected to obtain desired grade in the output as per the requirement of the customer. All the incoming raw materials are analyzed for quality before feeding into the furnace.

The charge mix containing chrome, coke and flux is taken into the furnace with the help of computerized batching system. The necessary heat required for a process is provided by electric energy to the charge through the electrodes. At the tip of the electrode electric arcing takes place and generates high heat energy to smelt chrome ore into HC Fe Cr/ Charge Chrome with coke (carbon) as reducing agent. In the process of smelting, gangue content in chrome ore forms the slag whose composition and fluidity are maintained by flux addition. Both hot metal and slag are tapped at regular intervals depending upon the power consumption. The slag is granulated. The metal is handled through decantation process and skimming process before cast in the metal casting beds prepared with slag dust and plastic clay. The metal after cooling is handled manually into different size fractions as per the requirement of the customer. This is a continuous process in which charge mix is taken regularly and slag & metal taped at regular intervals. Stage-wise inspection is carried out to get the quality product.