SU515580A1 - The device for automatic control of the metal level in the mold - Google Patents

Description

The invention relates to the automation of production processes in the ferrous metallurgy and is intended for automatic control of the continuous casting process.

A device is known for automatically controlling the level of a metal in a crystallizer of a continuous casting plant, which provides for automated control of the level of a metal in a crystallizer with an impact on the flow of a liquid metal into a crystallizer. The control system contains a sensor and a setting unit for metal levels in the mold, connected to the controller inputs, the output of which is connected to the executing mechanism, which is not suitable for the bucket stopper.

At present, methods for continuous casting of steel directly from a steel trowel to a mold are used. During the casting process, the level of metal in the ladle 1 is continuously changing from its maximum value to zero. This is one of the main disturbances in the level control system of the metal in the mold. The known system does not take into account this factor, which leads to a deterioration in the quality of the stabilization of the level of the metal in the mold, and hence to the violation of the ingot crystallization process.

The aim of the invention is to improve the quality of controlling the level of metal in the unit and improving the quality of the ingot.

This is achieved by the fact that the device for automatic adjustment of the metal level in the mold contains a channel for adjusting the transmission coefficient of the regulator for the metal level in the ladle, consisting of a metal level sensor in the ladle, the output of which is through a converter with regulator; crista tlizatore.

This embodiment of the device makes it possible to take into account the change in the level of the metal in

with a gourmet bowl, i.e., read the magnitude and nature of the disturbance in the control system.

The drawing shows the structure of the device, where 1 is the metal level sensor in

mold: 2 - level indicator met ;; lla in the mold; 3 - mold; 4 - regulator; 5 - I1spoln} 1te, 1n mechanism; 6 - stopper; 7 - ladle; 8 - metal level sensor in the steel ladle; 9 - converter; 10 - liquid metal.

The device works as follows.

Continuously during the casting process using a sensor I and the level of metal in the

mold 3. Depending on the magnitude of the mismatch between the measured (from the sensor) and the set (from the setter 2) value of the metal level in the mold 3, the controller 4 issues a command to the actuator “M3: Mu 5, which does not hold the stopper 6 of the steel-teeming ladle 7, maintaining the specified the value of the consumption of metal 10 in the mold. In order to improve the quality of metal level control in the mold, an 8 level metal sensor in the casting ladle 7 was additionally introduced. The torus 4, which gives the appropriate command for stirring, the stopper 6 towards the stabilization of the flow rate of the liquid metal 10 from the casting ladle.

Claims (1)

Invention Formula A device for automatic level control of the metal in the crystallizer, consisting of a sensor and a metal level gauge in the crystallizer, connected to the controller inputs, the output of which is connected to the actuator of the steel-teeming ladder, differs in that in order to improve the quality of control of the casting process and improving the quality of the ingot, oio contains a drop of correction of the transfer coefficient of the regulator for the level of the metal in the ladle, consisting of a metal level sensor in the ladle, the output of which is through The actuator is connected to the metal level regulators in the mold. Krasnov B.I. The optimal control of continuous casting modes of steel M., “. Metallurgists, 1970, p. 97 - 98.