SU869946A1 - Apparatus for automatic feeding of metal into open ended mould of metal continuous casting machine - Google Patents

Description

The invention relates to the field of foundry, and more particularly to continuous casting of metals, and can be used in devices for supplying metal to the mold on continuous metal casting machines.

A device is known for automatically feeding metal into the mold on continuous metal casting machines, comprising an intermediate bucket, a metering cup with a longitudinal channel, a stopper, a metal level sensor in the mold, a metal level regulator and an actuating mechanism that acts on the stopper (1].

Closest to the invention in technical essence is a device for automatically feeding * 0 metal into the mold on continuous metal casting machines, containing an intermediate bucket, a metering cup with a longitudinal channel, a sliding shutter, a metal level sensor * 5 metal, an actuator that controls the flow of metal to the mold [2].

The device operates as follows. . thirty

The signal from the metal level sensor in the mold is fed to the metal level controller, the imbalance signal of which controls the actuator. The actuator acts on the sliding shutter, changes the flow rate of the metal through the channel of the dosing cup, thereby maintaining the level of metal in the mold in accordance with the set value.

A disadvantage of the known devices is that when casting steel, deoxidized with aluminum or with a carbon content of 0.15% or more, a stable supply of metal to the mold occurs, i.e. disrupted technology.

The aim of the invention is to increase the yield of metal and improving the quality of the ingot.

In accordance with the invention, this goal is achieved by the fact that additionally introduced into the known device containing an intermediate bucket, a metering cup with a longitudinal channel, a sliding shutter, a metal level sensor in the mold, a metal level regulator, an actuator controlling the flow of metal into the mold ring inductor, covering the metering cup with a longitudinal channel, a contactor that connects the ring inductor to the power supply, and a speed switch zyaschego shutter. ⁵ The drawing shows a diagram of the device. _

The device comprises an intermediate bucket 1, on the bottom of which a sliding shutter 2 is fixed, regulating the degree of opening of the longitudinal channel in the metering nozzle 3, a sensor> metal level 4 in the mold, a metal level regulator 5, which controls the actuator 15 min 6, the switch 7, which through the contactor 8 includes a ring inductor 9.

The device operates as follows. 20

The signal from the metal level sensor 4 in the mold is fed to the metal level controller 5, the imbalance signal of which controls the actuator 6. The actuator b acts on the sliding shutter 2, thereby changing the metal flow rate through the channel of the metering nozzle 3. If the metal is cast from intermediate bucket _ 1 channel of the metering cup 3 '' is tightened '', as evidenced by an increase in the degree of opening of the sliding shutter by 65-70%, the limit switch 7, which turns on the mains, is activated through factor 8, ring-35 inductor 9. After heating the metering nozzle 3, non-metallic deposits are opened in the longitudinal channel, and the actuator b returns to its initial 4Q state, and the limit switch 7 disconnects the ring inductor 9. From the mains, the process casting by continuous casting machine is not broken.

The advantage of the proposed device is that when casting steel, deoxidized with aluminum or with a carbon content of 0.15% or more, the technological process of casting metal on MNLE is not violated.

According to preliminary calculations, the economic effect of using the proposed invention will be about 80 thousand rubles. in workshops with a capacity of 3.5 million tons of steel per year.

Claims (2)

By introducing a metal into the mold, an annular inductor is additionally introduced. It covers the metering cup with a longitudinal channel, a contactor that connects the annular power inductor and the slide gate movement switch. The layout of the circuit is shown in the drawing. The device contains an intermediate bucket 1, on the bottom of which a sliding bolt 2 is fixed, regulating the degree of opening of the longitudinal channel in the metering cup 3, 4 metal levels in the mold, metal level regulator 5, controlling, actuating mechanism .6, limit switch 7, which through the contactor 8 includes a ring inductor 9 in the network. The device operates in the following way. . The signal from the metal level 4 sensor in the crystallizer is fed to the metal level 5 regulator, the imbalance signal of which controls the actuating mechanism 6. The actuating mechanism 6 acts on the sliding gate 2, thereby changing the metal consumption through the channel of the metering cup 3, If During the process of metal pouring from the tundish 1, the channel of the dosing cup 3 is tightened, as evidenced by an increase in the opening degree of the slide valve by 65-70%, the limit switch 7, which switches to the network, is activated through the contact torus 8, annular inductor 9. After warming up the metering cup 3, the nonmetallic deposits in the longitudinal channel open, and the executive Mechanism b returns to its original state, and the limit switch 7 disconnects the annular inductor 9 from the network. Thus, the casting process on the machine continuous casting is not disturbed. The advantage of the proposed device is that when casting steel, deoxidized with aluminum or with a carbon content of 0, and more, the technological process of casting metal on a continuous casting machine is not disturbed. According to preliminary calculations, the economic effect from the use of the proposed invention will be about 80 thousand rubles. in workshops with a capacity of 3.5 million tons of steel per year. Apparatus of the Invention A device for automatically feeding metal into a crystallizer of a continuous metal casting machine, comprising an intermediate ladle, a metering cup with a longitudinal channel, a sliding slide, a metal level sensor in the crystallizer, a metal level regulator, an actuator, characterized in that, in order to increase the yield of a suitable metal and an increase in the quality of the ingot; a ring inductor, covering the dosing cup, with a longitudinal channel, a contactor and a limit switch escheni sliding shutter, wherein the contactor output is connected to the input inductor and the input of the contactor is connected to the output of the track switch, which is connected to yhod sliding shutter. Sources of information taken into account during the examination 1. Margolin MM. and Karlik V.A. Electrical equipment and automation of continuous casting of steel. M., Metallurgists, 1969, pp.142-144. 2.Steee Times 1978, 206, No. 12, 90.