Origin searching device and method for continuous casting crystallizer vibration system

Abstract

The invention discloses an origin searching device and method for a continuous casting crystallizer vibration system, and belongs to the technical field of continuous casting crystallizer vibration control. The origin searching device comprises a crystallizer, a vibration rack, an electric cylinder and a positioning base. An origin searching detection assembly is arranged on the positioning base and comprises an adjusting support, a proximity switch I, a proximity switch II and a proximity switch III. The distance between the proximity switch I and the proximity switch III is equal to the maximum stroke of the action track of the electric cylinder. The height of the proximity switch II is flush with the height of the movable end of the electric cylinder when the vibration rack is horizontal after returning. The origin searching device and method have the beneficial effects that the origin searching device is simple in structure, convenient to install and adjust, high in universality and long in service life, automatic control over origin searching is achieved, the efficiency and precision of the origin searching operation are improved, the labor intensity of workers is lowered, therhythm of continuous casting is accelerated, mechanical faults of the electric cylinder are reduced, steel leakage accidents are reduced, and the quality of casting blanks is improved.

Description

technical field [0001] The invention relates to the technical field of continuous casting crystallizer vibration control, in particular to an origin finding device and method for a continuous casting crystallizer vibration system. Background technique [0002] The continuous casting vibration system uses computer calculation to generate the sinusoidal or non-sinusoidal curve of the crystallizer vibration, so that the crystallizer can move accordingly, and combined with the casting speed to accurately control the crystallizer's up and down vibration, so that the vibration waveform can maintain accurate frequency and amplitude. , negative slip time, positive slip time, and waveform skew rate, etc., and finally obtain the crystallizer vibration trajectory that meets the process requirements. After the vibration is finished and returned to its position, the vibration system often cannot return to the mechanical origin due to various reasons. To complete these complex and precise...

AI Technical Summary

Problems solved by technology

After the vibration is finished and returned to its position, the vibration system often cannot return to the mechanical origin due to various reasons. To complete these complex and precise vibration trajectories for the crystallizer, the vibration system must be started at the mechanical origin, and the origin must be searched before each vibration. Otherwise, it will affect the quality of the slab, and even cause a steel breakout accident or a major equipment accident

[0003] The traditional operation of finding the origin is to manually press the button of "finding the origin" on the operation box, and the vibration system searches for the origin according to the step distance of lifting and lowering. However, because the operator does not know whether the vibration system has gone through a vibration cycle, It often happens that the number of adjustments exceeds the set value and does not reach the mechanical origin, resulting in the failure of the origin-finding operation; at this time, only manual lifting control is used to find the origin. Through the walkie-talkie, one person observes the state of the vibration table, and the other operates the operation box until The vibration table is in a horizontal position and the vibration table can only be successfully debugged after a vibration cycle, so it needs to be repeated many times to succeed

This traditional origin-finding operation is time-consuming and labor-intensive. In the harsh environment, the labor intensity of workers is high, and it seriously affects the rhythm of continuous casting slab casting, and even directly affects the quality of continuous casting slab, which brings considerable losses to the enterprise.

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