A method for controlling the rolling and conveying speed of medium and heavy plates

A technology of speed control and control method, applied in the direction of roll speed control, etc., can solve problems such as not meeting process requirements

Active Publication Date: 2017-04-26
BAOSHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0054] Aiming at the actual production problem that the difference between the finish rolling temperature and the cooling start temperature of some products adopting TMCP technology is relatively small, and the conventional roller table transportation method cannot meet the process requirements, the technical solution of the present invention provides a method including the final stage of the rolling mill. The automatic speed control method of the second rolling process, the conveying process of the steel plate from the finishing mill to the roller conveying process of the controlled cooling device, and the pre-straightening process

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  • A method for controlling the rolling and conveying speed of medium and heavy plates
  • A method for controlling the rolling and conveying speed of medium and heavy plates
  • A method for controlling the rolling and conveying speed of medium and heavy plates

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Embodiment

[0197] It is assumed that the medium and heavy plate production line is arranged in the order of finishing mill, pre-leveler and controlled cooling device. The roller table group is divided into 6 groups, and the names of each roller table group are FX1, FX2, FX3, FX4, FX5, AC1, FX5 The connecting position with AC1 is the position of the first handover point, and the distance from the first handover point to the finishing mill S f is 58 meters, the distance S between the first handover point and the second handover point L is 5 meters, and the distance Sa from the second junction point to the inlet of the control cooling device is defined as 1.8 meters. The connecting position between FX1 and FX2 is defined as the switching point of the transportation process.

[0198] Added speed control module C2 for global coordination and calculation of speed map parameters g . Change C2 f , C1, C1a, C2a, increase communication with C2g and change the original speed control function. ...

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Abstract

The invention relates to an automatic speed control method in a final rolling process of a rolling mill, in a roller way conveying process of steel plates from a finish rolling mill to a control cooling device and in a pre-straightening process, and aims to satisfy the TMCP process parameter requirements of smaller difference between the final rolling temperature of finish rolling and the cooling beginning temperature of some products. The technical scheme of the invention is suitable for a modern medium-thickness plate production line arranged by a finish rolling mill, a pre-straightener and a control cooling device and having an automatic control system. The technical scheme of the invention gives a velocity diagram (10) of integrated steel plate operation satisfying the seamless speed joint between the steel polishing process and the steel plate transportation process in final rolling considering the final rolling temperature and cooling beginning temperature process requirements; and the technical scheme newly adds a speed control module for global coordinative calculation of parameters of the velocity diagram for realizing the velocity diagram of integrated steel plate operation, and improves new speed control schemes of speed control modules of traditional all units.

Description

technical field [0001] The invention relates to the field of automatic control of a medium and thick plate rolling production line. Specifically, the present invention relates to a method for controlling steel plate rolling and conveying speed of a medium and heavy plate rolling production line, and especially relates to a control method according to rolling mill, pre-leveler, control The overall coordinated speed automatic control method of the steel plate on the medium and heavy plate rolling production line arranged by the cooling device from the finishing mill to the rolling mill that controls the cooling device, the output roller table after the rolling mill, and the pre-leveler, that is, the last pass of the finishing mill An overall coordinated speed control method for the manufacturing process and the roller conveyor process. Background technique [0002] At present, in the field of metallurgy, modern medium and heavy plate rolling production lines are usually equipp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B37/46
Inventor 苗雨川王全胜汤风鸣
Owner BAOSHAN IRON & STEEL CO LTD
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