The Design Of The Infrared Line Scanning Hot Metal Detector

In the industrial modernization rapid development modern days, precise industrial control increasingly reflects its importance, in energy-intensive polluting metallurgy industry is even more so. In scientific development and a low carbon economy of the environment, more steel companies go through increasing technical investments, increasing automatic control equipment to cut costs, improve efficiency. This design of hot metal detector is non-contact measurement and control system, applied to the hot-rolling mill.Hot-rolled billet in rolling mill from crude exports after head tail often can appear billet tongue or tail shape defects, in order to guarantee the follow-up production run smoothly, need to strip into the stands of billet before head and cut to the tail. Optimization shear system usually fine rolling the flying shear installed in the front position of rough rolling or export. So can greatly reduce the loss of the head and tail shear billet and improve the yield.Hot metal detector in strip optimization shear system plays an important role. Hot metal detector system to provide for the entire optimization shear triggers a time signal and signal. It directly influences the precision degree of optimizing the good will of shear system, control the accuracy of cutting the head and tail. Good hot metal detector can lower the head and tail delay, eliminate breakpoints, greatly improve the production efficiency, increase corporate profits.This article from the flying shear control principle and digital image processing, research on the optimization of basic types and methods of shear, design the whole optimization shear system scheme of and the equipment selection. Using a digital signal processing method and optical non-contact measuring principle, key is designed on the basis of photoelectric diode array of new infrared scanning hot metal detectors. Use circuit filter and digital filter combination of methods, emphasis is designed on the basis of digital signal processing of hot metal detector program.Hot metal detector technology research is a practical application value problem, and the use of digital signal processor and photoelectric diode with non-contact measurement, high accuracy, easy to computer processing, easy to control automation and so on a series of advantages. Therefore, this research of hot metal detector has great practical significance and good application value.