Rolling mill control system and control method

A technology of control system and rolling mill control, which is applied in general control system, control/regulation system, program control in sequence/logic controller, etc. It can solve the problems that the DC speed control device cannot receive the start signal and the rolling mill cannot be turned on, etc.

Inactive Publication Date: 2018-07-24
SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the master station PLC, slave station PLC, and speed control device are composed of a series system, when the slave station PLC fails, it will directly force the information transmission to be interrupted, and the DC speed control device cannot receive the start signal, and at the same time, the rolling mill cannot be started.

Method used

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  • Rolling mill control system and control method

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Embodiment Construction

[0017] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with specific embodiments.

[0018] Such as figure 1 As shown, the present invention includes main control PLC, sub-control PLC, DC motor control system, alarm control system and dust removal control system; said sub-control PLC, DC motor control system are respectively connected with active PLC; said dust removal control system, alarm The control system is connected with the sub-control PLC. It also includes a cooling control system connected with a sub-control PLC.

[0019] The cooling control system includes a temperature sensor connected to the sub-control PLC and an air-cooling device; the temperature sensor is connected to the sub-control PLC through an AD conversion circuit; the sub-control PLC is connected to a relay through a DA conversion circuit, and the relay is conn...

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Abstract

The invention discloses a rolling mill control system and a control method; the control system comprises a main control PLC, a sub-control PLC, a DC motor control system, an alarm control system and adustproof control system; the sub-control PLC and the DC motor control system are respectively connected with the main control PLC; the dustproof control system and the alarm control system are connected with the sub-control PLC. By using the technical scheme, the rolling mill start-stop control system can use the main control PLC to singly control the sub-control PLC and the DC motor control system, thus allowing a DC speed regulator to normally work when the sub-control PLC fails, and further improving the stability of the control system in the rolling mill control process.

Description

technical field [0001] The invention relates to a control system and a control method for controlling a rolling mill in the iron and steel production industry. Background technique [0002] A rolling mill is the equipment that realizes the metal rolling process. Generally refers to the equipment that completes the whole process of rolling production, including main equipment, auxiliary equipment, lifting and transportation equipment and auxiliary equipment. The control of modern steel rolling production equipment is based on the complex control system formed by the communication network. The general control process is: the master station PLC communicates with the slave station PLC to transmit signals such as the start and stop of the rolling mill, and then the slave station PLC communicates with the DC speed control device. The control signal is transmitted (most rolling mills are driven by DC motors), and the DC speed control device starts and controls the rolling mill dri...

Claims

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Application Information

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IPC IPC(8): G05B19/05
CPCG05B19/054G05B2219/1103
Inventor 廖能王洪开张建文陈建明彭志明麦吉昌
Owner SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD
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