SU1682807A1 - Device for introducing additives into mould - Google Patents

Abstract

The invention relates to metallurgy and simplifies servicing, increases the service life of continuous work, increases the digestibility of metal additives during continuous casting of steel into the mold. The metal additive from the hopper 2, fixed on the tundish 1, enters the mold through 45-60 ° C installed at an angle to the horizon. sliding gutter, acquiring the speed necessary for penetrating the slag crust. 2 Il.

Description

Fi.g

The invention relates to metallurgy and can be used to supply metzloduobevok in the mold of a continuous casting plant.

The purpose of the invention is to simplify maintenance, increase the resource for continuous operation and increase the absorption of metal additives.

FIG. 1 and 2 shows the proposed device.

On the tundish 1 there is fixed a bunker 2 of the metal additive dosing unit, under which a feeder 3 is installed with a rotary dosing unit, for example a paddle drum (not shown), on the axis of which a ratchet 4 is fitted, equipped with a pawl 5. The pawl 5 is connected through a rod 6 with a rocking crystallizer 7 which is installed with the possibility of reciprocating vertical movement. Under the exit window of the feeder, one end of the sliding chute 8 is fixed, the other end of which is lowered at an angle of 45–60 ° to the horizon and placed above the metal 9 in the mold 7 covered with slag 10.

During steel casting, the mold 7, having made a reciprocating motion, raises the rod 6 upwards, which with the help of the hinge-connected dog 5 rotates the ratchet 4, and hence the metering body of the feeder 3. The metal additive falls on the groove 8, accelerates on it and falls into the mold. The chute 8 is installed under the yyl, which ensures the passage of the metal additive under the slag layer 10 into the metal 8

and eliminating the pyro effect, which can occur when a metal additive falls at a high rate due to it floating on the slag surface 10. Installing the hopper 2 on the fixed tundish eliminates its vibration and compaction of the metal additives, and also allows free access to the crystallizer and allows the dispenser to be charged with an additive the casting time of steel without removing the dispenser or moving it under loading, i.e. increase the duration of continuous feed modifier in the mold.

Claims (1)

Invention Formula Device for supplying metal additives to the mold, containing placed under the installed with the possibility of reciprocating vertical the displacement of the crystallizer is a tundish, a metal additive dispenser, under the bunker of which a feeder is placed with an exit window and a rotary dosing body, on the axis of which a ratchet fitted with a pawl fixed on the rod is installed, so that, in order to simplify maintenance, increase the continuous operation life and increase the absorption of metal additives, a sliding chute is inserted into it, which is installed between the output window feeder and mold at an angle to the horizon of 45-60 °. moreover, the bunker is fixed on the tundish, and rod - on the mold Fy