Apparatus for supplying recarburizer of electric furnace using tire powder and supplying method thereof

摘要

The present invention relates to a method to supply recarburizer to an electric arc furnace (EAF) using a tire powder chip which uses a tire powder chip as an auxiliary raw material of cokes and coal in a process to manufacture ferroalloy in an EAF. According to the present invention, a recarburizer supply apparatus comprises: a first lance obliquely inserted and installed in a sidewall of an EAF to supply oxygen to the EAF; a second lance inserted and installed in the sidewall of the EAF by being spaced apart from the first lance at an interval to supply the EAF with a carbon source or an auxiliary raw material as recarburizer; and a supply unit supplying the carbon source or the auxiliary raw material to the second lance. According to the present invention, the carbon source is formed with a plurality of capsules containing tire powder chips with a size of 0.01 to 9.5 mm so as to control an input quality and the speed of the carbon source; thereby being able to reduce manufacturing costs of ferroalloy.