Lifting control method and device for tundish car of continuous casting machine

A lift control, continuous casting machine technology, applied in manufacturing tools, casting equipment, casting melt containers, etc., can solve problems such as affecting the quality and efficiency of slab production, and the inability of tundish trucks to be accurately positioned.

Pending Publication Date: 2019-02-01
SHANDONG IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] This application provides a lifting control method and device for a tundish car of a continuous casting machine to solve the technical proble

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  • Lifting control method and device for tundish car of continuous casting machine
  • Lifting control method and device for tundish car of continuous casting machine

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Embodiment Construction

[0042] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0043] A lifting control method for a tundish car of a continuous casting machine provided by an embodiment of the present invention is used to control the precise lifting of a tundish car, wherein, the PLC controller 1 is connected to the frequency converter 2 through communication, and the two can use PROFINET communication. The frequency c...

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Abstract

The invention discloses a lifting control method and device for a tundish car of a continuous casting machine. The lifting control device is characterized in that a PLC (programmable logic controller)is connected with frequency converters in a communication manner; the frequency converters are connected to lifting motors; the lifting motors are connected to the tundish car through lifting assemblies; and the lifting assemblies comprise speed reducers. The lifting control method comprises the following steps that the tundish car is controlled to rise/fall according to an instruction of the PLC; the rotating parameters of the lifting motors and the diameters of the speed reducers are acquired by the PLC; the instantaneous moving speed of the tundish car is calculated by the PLC according tothe rotating parameters and the diameters of the speed reducers; the real-time moving distance of the tundish car within each acquisition time period is calculated by the PLC according to the instantaneous moving speed; and the calculation results of the real-time moving distance are accumulated and then the total moving distance is acquired. According to the lifting control method and device, the PLC is connected with the frequency converters in a communication manner and kept from a high-temperature environment on the site, so that the tundish car can be more accurately positioned in real time, the lifting position of the tundish car can be more accurately controlled, and the plate blank production quality and the entire production efficiency can be improved.

Description

technical field [0001] The present application relates to the technical field of metallurgical industry control, in particular to a method and device for controlling the lifting of a tundish car of a continuous casting machine. Background technique [0002] In the process of steelmaking and metallurgy, the tundish is connected to the mold through a submerged nozzle to ensure that the molten steel will not be poured bare and the liquid level of the mold is stable. The height change of the submerged nozzle in the crystallizer and the time of local erosion in the crystallizer must be strictly controlled, so the position of the submerged nozzle needs to be adjusted according to the time period. By adjusting the height of the tundish car and changing the position where the submerged nozzle is immersed in the tundish, it is called the slag line operation. [0003] In the traditional slag line operation process, the height of the tundish car is usually detected by installing displ...

Claims

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Application Information

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IPC IPC(8): B22D11/18B22D41/12
CPCB22D11/18B22D41/12
Inventor 郭秀辉蔡森张蕾李超杜芳徐晖
Owner SHANDONG IRON & STEEL CO LTD
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