On-line monitoring device for roll gap of plate blank continuous casting machine

Abstract

The invention relates to an on-line monitoring device for roll gap of a plate blank continuous casting machine, which belongs to the technical field of metallurgy professional measurement device. The middle part of a displacement sensor of the device is fixed on the middle part of the internal surface of an upper measurement positioning board through an upper positioning seat of a measuring rod, and the lower end of the displacement sensor is movably inserted in a lower positioning seat of the measuring rod; a sensing end of the displacement sensor is extended out of the upper and lower measurement positioning boards respectively; the upper and lower positioning seats of the measuring rod are movably sleeve and connected with each other; the two sides of the internal surface are fixedly connected with two upper guide rod positioning seats respectively, and the two upper guide rod positioning seats are movably sleeved and connected with the two lower guide rod positioning seats respectively; and the upper and lower measurement positioning boards are extended toward the two ends along the width direction respectively so as to form support heads which contact with an upper continuouscast roller and a lower continuous cast roller during measurement respectively. In the invention, the abnormal changes of the roll gap can be found in time by the displacement sensor tracking the measuring value of the roll gap and analyzing the trend in an on-line manner, and the overhauling work can be quantitatively instructed, thereby improving the overhauling efficiency and being favorable to improving the capacity and reducing the mass loss.

Description

technical field [0001] The invention relates to a monitoring device, in particular to an online monitoring device for roll gaps of a slab continuous casting machine, and belongs to the technical field of metallurgical measuring instruments. Background technique [0002] Due to the long-term influence of thermal stress, slab impact force and billet drawing force on the slab continuous casting machine, the roll gap value (also called opening) of the runner is prone to change. The slab continuous casting machine generally needs to be overhauled twice a month to meet the process requirements, which restricts the increase in the continuous casting slab production. In order to guide the overhaul of the continuous casting machine in a targeted manner, shorten the overhaul time and improve the overhaul efficiency, it is necessary to quickly and accurately grasp the specific situation of the roll gap change. [0003] At present, the roll gap of the continuous casting machine is gene...

AI Technical Summary

Problems solved by technology

After the measuring instrument is hoisted in place, walks through the runner once and exports the data (about two hours), the roll gap value of a certain pair of rolls can be obtained, and then the adjustment can be carried out, which takes a long time and affects the continuous casting machine's operation rate

[0006] 2) It can only be used when the machine is shut down, and the roll gap cannot be continuously monitored online, which is not conducive to timely detection of roll gap abnormalities and reduces the loss of casting slab quality

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