Automatic on-line width adjustment control system for continuous casting and process control method

Abstract

The invention discloses an automatic on-line width adjustment control system for continuous casting and a process control method and belongs to the field of continuous casting machines and process control. According to the automatic on-line width adjustment control system for continuous casting and the process control method, on the basis of an existing basic automated information computer and a width adjustment control execution unit, a crystallizer hot width adjustment control system is additionally arranged; and in the pouring process, the control system automatically acquires casting flow pouring plan information, current pouring length information, current casting flow liquid surface control information, current casting flow pulling rate information, ladle tonnage information, tundish tonnage information and casting flow crystallizer copper plate pulling heat information from the basic automated information computer and a production management computer, reading, judging and controlling execution of related information are carried out according to the rule set by the system, and related information and an alarm are output in the execution process to remind an operator. By the adoption of the automatic on-line width adjustment control system for continuous casting and the process control method, the continuous casting automatic hot width adjusting function can be achieved, on-site unmanned operation is achieved, operation is simplified, meanwhile the safety of the hot width adjustment work of a casting machine can be guaranteed, and quality control and production anomaly accidents are prevented.

Description

technical field [0001] The invention belongs to the field of continuous casting machine equipment and process control, and in particular relates to an automatic on-line width adjustment control system and a process control method for a slab continuous casting machine. Background technique [0002] The thermal width adjustment of the casting machine is also an important means to improve the production efficiency of slab continuous casting and reduce the production cost. Although the mechanical principle of the thermal width adjustment function of the slab caster is various, there are hydraulic cylinders with position sensors Servo hydraulic cylinder type, servo motor type, mechanical screw type, etc., and their width adjustment process principles are also different, but their purpose is the same, all of which are adjusted by adjusting the position of the copper plate on the short side of the crystallizer during the pouring process. and taper value to change the width dimensio...

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Problems solved by technology

[0008] So far, there is no mature automatic thermal width adjustment function in China. After years of hard work, the applicant's company has realized the remote control function of thermal width adjustment in 2013, but this remote control still cannot get rid of the need for central control and on-site operation. Confirmation and cooperation of personnel. At the same time, the central control personnel should also do a lot of confirmation on the preparation and implementation of thermal widening and the status after widening

[0009] Some advanced foreign enterprises, such as some large iron and steel production enterprises in Japan, have basically realized the function of automatic thermal width adjustment, but the related system configuration and process methods have not been disclosed. The rate is very low, usually once a day, and the stability of its process control is very high, and the accuracy of equipment functions is slightly higher than that in China. Therefore, the risk of thermal width adjustment is much smaller than that in China.

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