Control method of medium-thickness plate rolling and conveying speed

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

Active Publication Date: 2016-01-06
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • 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

Method used

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  • Control method of medium-thickness plate rolling and conveying speed
  • Control method of medium-thickness plate rolling and conveying speed
  • Control method of medium-thickness plate rolling and conveying speed

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Embodiment

[0197] The medium and heavy plate production line is arranged in the order of finishing mill, pre-straightening machine and control 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 connection position with AC1 is the position of the first junction point, and the first junction point is far from the finishing mill S f is 58 meters, the distance S between the first junction point and the second junction point L is 5 meters, and the distance Sa from the second junction point to the control cooling device inlet is defined as 1.8 meters. Define the connection point between FX1 and FX2 as the transition point of the transport process.

[0198] Added speed control module C2 for globally coordinated calculation of speed map parameters g . Change C2 f , C1, C1a, C2a, increase the communication with C2g and change the original speed control function. Through the above addition and rec...

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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 heavy plate rolling production line, in particular, the present invention relates to a method for controlling the rolling and conveying speed of steel plates in a medium and heavy plate rolling production line, The overall coordinated speed automatic control method of the steel plate on the plate rolling production line with the cooling device arrangement 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. The overall coordinated speed control method of 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 equipped with heating furnaces, rolling mills, controlled cooling devices, thermal straighteners, e...

Claims

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Application Information

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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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