FIELD: metallurgy.
SUBSTANCE: reverberating furnace consists of case formed with refractory external side, front and back end walls, of storage bath and tilted platform restricted with hearth and walls, of discharge notch, of turning-rotary chute, of gas duct and of welded frame poured with concrete with filler of chamotte chips and having two heat insulating layers out of light-weight brick under bottom and three heat insulating layers out of light-weight brick under tilted platform. In side walls there two loading and two slag windows. Devices for doors lifting and lowering facilitate reliable pressure tightness forming a L-shaped lock. Two rows of gas injection burners of medium pressure are installed in the furnace; also, the lower row of the burners is directed into charge, while the upper one is directed onto the bath. The furnace can operate on natural or forced draught with system of powder-gas cleaning. The turn-rotary chute consists of three connected telescopic sections arranged on a carriage and rotating in the process of liquid metal casting, and of a revolving cup with a lip. The revolving cup is mounted on a channel coaxially to the rotating chute and has a metal case with refractory and heat insulated layer under it. From beneath to the metal case of the revolving cup there is welded a shaft resting on a support ball and facilitating turn of the revolving cup at angle of 120° for successive casting of melt metal into casting equipment installed in a sector at angle of 120°.
EFFECT: re-melting scrap, non-graded from foreign inclusions, and reduced burn-off and heat losses in furnace.
8 cl, 4 dwg
