Control method and apparatus for continuous casting steel pouring

Patent metadata

Field	Value
Publication number	US-10369624-B2
Application number	US-201214408873-A
Country	US
Kind code	B2
Filing date	Dec 10, 2012
Priority date	Jun 29, 2012
Publication date	Aug 6, 2019
Grant date	Aug 6, 2019

Abstract

A control method and apparatus for continuous casting steel pouring are provided, wherein the amount of the molten steel flow of the ladle is controlled, thereby improving the yield of the molten steel and decreasing the production cost.

First claim

The invention claimed is:

1. A control apparatus for continuous casting steel pouring, comprising: a steel ladle, a sliding nozzle, a steel ladle long nozzle, a tundish, a sliding nozzle driving cylinder, a cylinder driving unit, an inferential controller comprising a unit for receiving data, analyzing the received data, computing at least one value based on the analyzed data, and output a control function, and a PI controller, wherein the steel ladle long nozzle connects the steel ladle and the tundish;
wherein further, the inferential controller is configured to:
obtain a steel slag amount signal from a steel slag measurement sensor;
determine that the steel slag amount signal is greater than a manually set steel slag amount value;
in response to the steel slag amount signal being greater, determine a cylinder control signal; and
send the cylinder control signal to the PI controller;

wherein the PI controller is configured to determine a degree of opening of the sliding nozzle based on the cylinder control signal and outputs a second signal to the cylinder driving unit based on the determined degree of opening of the sliding nozzle; and
wherein, upon receipt of the second signal, the cylinder driving unit is configured to adjust the degree of opening of the sliding nozzle based on the second signal by sending one or more third signals to the sliding nozzle driving cylinder.

2. The control apparatus of claim 1 , further comprising a steel slag measurement sensor, a steel slag measurement signal amplifier, a steel ladle position sensor, a cylinder piston position sensor, an alarm, and a steel pouring optimization control computer.

3. The control apparatus of claim 2 , wherein the steel ladle position sensor is installed on a turntable of the steel ladle, and wherein the steel ladle position sensor outputs a signal to an on-site process control computer.

4. The control apparatus of claim 3 , wherein the on-site process control computer outputs a steel ladle position signal to a process signal interface unit.

5. The control apparatus of claim 4 , wherein the process signal interface unit outputs the steel ladle position signal to the steel pouring optimization control computer.

6. The control apparatus of claim 2 , wherein the cylinder piston position sensor is installed on the sliding nozzle driving cylinder, and wherein the cylinder piston position sensor outputs a signal to the steel pouring optimization control computer.

7. The control apparatus of claim 6 , wherein computer connects with the cylinder driving unit and an alarm” with—an output of the steel pouring optimization control computer connects with the cylinder driving unit and the alarm.

Assignees

• Baoshan Iron & Steel

Inventors

• Tang Anxiang
• Shentu Lifeng
• Hu Jikang
• Cao Dean
• Wang Xingyu
• Chen Chen
• Yao Jianqing
• Lu Xinghua
• Chen Jinsong
• Feng Aiping
• Yu Xiaoguang

Classifications

• B22D11/10

  Supplying or treating molten metal (B22D41/00 takes precedence) · CPC title

• B22D41/50

  Pouring-nozzles · CPC title

• B22D11/18 Primary

  for pouring (B22D11/20 takes precedence) · CPC title

• B22D41/00

  Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like (B22D39/00, B22D43/00 take precedence) · CPC title

• B22D11/001

  of specific alloys · CPC title