The rotary furnace body is conducive to loosening the charge during the smelting process to increase the permeability, expand the reaction area and prolong the life of the furnace lining, and is mostly used in electric furnaces that produce high silicon alloys. The bottom plate of the furnace is usually a horizontal plate, which is floated on the I-beam bent frame placed on the concrete foundation, and a good air passage can be formed through the I-beam bent frame to cool the furnace bottom. The side walls are equipped with tap holes, 1-2 for the stationary electric furnace and 5-6 for the rotary electric furnace, the latter is beneficial for the furnace body to rotate to any position for tapping. The furnace shell is welded or riveted by 15-25mm thick steel plate and vertical and horizontal stiffening plates.

There is a gap of about 90-140mm between the furnace shell and the refractory brick, and the clay particles and asbestos board are filled as an elastic layer to partially absorb the expansion of the refractory brick and reduce the heat dissipation of the furnace lining. The refractory material needs to have high refractoriness and good physical and chemical indicators.Ĭommonly used refractory materials are clay bricks, carbon bricks, magnesia bricks, etc. The temperature of the reaction zone of the molten pool of the reduction furnace is as high as 2000-2200 ℃, and it is in a strong electric field. Most of the three electrodes in a row and the six electrodes in three phases are rectangular or elliptical furnace bodies Ī round furnace body is commonly used, which has a compact structure, high rigidity and is easy to manufacture. The shape of the furnace body depends on the arrangement of the electrodes. According to the electrode arrangement in the submerged arc furnace, the furnace type of the submerged arc furnace has the electrode triangular arrangement type, which includes a circular furnace and a triangular furnace Įlectrode linear arrangement type, it includes rectangular furnace and oval furnace.

Submerge arc furnace