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Rolling mill breakdown normality simulating set rolling method

A technology of faults and rolling mills, applied in the direction of rolling mill control devices, metal rolling, metal rolling, etc., to achieve the effect of ensuring normal and solving long-term parking

Active Publication Date: 2013-08-21
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: how to quickly deal with the abnormal situation in the rolling process to realize the continuous automatic control of the hot continuous rolling finishing stand, how to solve the problem of mutual confirmation between the program and the field equipment when a certain stand fails, How to solve the stability between hot continuous rolling finishing stands and greatly reduce downtime

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] According to the failure of the rack equipment, the operator selects the INACTIVE or OUT OF SERVICE function button through the man-machine dialogue interface. After selecting an empty rack, the computer controls the hydraulic press release valve of the rack to be energized, the oil supply valve is de-energized, the servo valve is not set, the press cylinder is lifted, the release valve and oil supply valve model: 4WE6D6X / EG24N9K4, Servo valve model: 4WSE3EE32-4X / 1000B8; For electrical faults, set the local / remote control switch to local, and it is remote control when it is normal, and select local when it is faulty, so that the normal rolling will not be affected when the empty rack is processed. Various valve controls are realized through point-to-point; electric transmission control is realized through PROFIBUS and GDM communication.

[0011] The computer completes the corresponding judgment process according to the selection flag. If the INACTIVE mode is selected, ...

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Abstract

The invention belong to the control field of a hot continuous rolling strip steel line, and particularly relates to a rolling mill breakdown normality simulating set rolling method. In the process of rolling of a plurality of rolling mills, when one or more rolling mills break down, normal operation of breakdown rolling mills is simulated through a computer so that the rolling mills without breakdowns can conduct rolling operation normally. According to the rolling mill breakdown normality simulating set rolling method, once a position sensor breakdown, a hydraulic breakdown and a transmission system breakdown of a downward pressing system of a certain rack occur in the process of rolling, automatic control can be conducted rapidly, the problem that the rolling mills stop for a long time is solved, and normal hot rolling production is guaranteed.

Description

technical field [0001] The invention belongs to the control field of hot continuous rolling strip steel rolling line, in particular to a rolling method for idling when the rolling mill fails. Background technique [0002] In hot-rolling enterprises, Tongcheng has multiple hot-rolling mills performing hot-rolling synchronously during the hot-finishing process. Usually, it is the basic condition for rolling that all hot-rolling mill equipment in the finishing-rolling system, main transmission system, etc., but during the rolling process, sometimes the position sensor and hydraulic failure of a rack pressing system and the failure of the transmission system occur, resulting in long-term production shutdown and huge economic losses to the hot continuous rolling mill . Contents of the invention [0003] The technical problem to be solved by the present invention is: how to quickly deal with the abnormal situation in the rolling process to realize the continuous automatic contr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/00
Inventor 张世厚闫丰梅闫峥嵘
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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