Device and method for measuring surface temperature of plate blank online

Abstract

The invention relates to a device and method for measuring the surface temperature of plate blank online. The device comprises a temperature measuring probe, a temperature measuring optical fiber, a probe fixing frame, a connecting piece, a probe protection sleeve and a metal hose. The temperature measuring probe is arranged on the head of the temperature measuring optical fiber. The temperature measuring optical fiber is placed in the metal hose. The connecting piece is movably connected with the probe fixing frame. The probe protection sleeve is fixedly connected with the connecting piece. The method comprises the steps that the working position, to the plate blank, of the temperature measuring probe of the device is adjusted; temperature measuring is conducted on the plate blank through the temperature measuring probe; argon is blown into the probe protection sleeve through the metal hose; temperature data are processed through a data processing assembly. By means of the device and method, the surface temperature of different positions of the plate blank can be accurately measured, the temperature of a certain position of the plate blank can be measured continuously and the temperature data can be recorded and counted.

Description

technical field [0001] The invention relates to the technical field of metal casting, in particular to a device and method for online measuring the surface temperature of a slab. Background technique [0002] For the continuous casting process, the surface temperature of the slab is an important parameter to adjust the amount of cooling water, control the casting speed, and determine the depth of the liquid phase. Especially in the spray chamber of the secondary cooling zone, accurate knowledge of the surface temperature of the slab is of great significance for determining the casting speed, continuous casting output and final metal properties of the slab. At present, the more common solution is to estimate the actual temperature based on the empirical value summarized in practice. However, due to the wide variety of field conditions and process implementation, the conclusions drawn by the model are often not consistent with the actual value, or even differ greatly. It is h...

AI Technical Summary

Problems solved by technology

[0003] At present, hand-held infrared thermometers are mainly used to measure the temperature of the secondary cooling zone of the slab, but because the position of the hand-held thermometer is not fixed, it cannot uniformly reflect the temperature change at a certain point

At the same time, because the environment of the secondary cooling zone is high temperature and high humidity, on the one hand, the temperature measuring personnel cannot stay in this environment for a long time; Mist steam, it is very difficult to detect the surface temperature of the slab under such an environment, and the temperature measurement data is inaccurate

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