A method for automatic temperature measurement and sampling of molten steel in a steelmaking converter

Abstract

The invention relates to a stokehole automatic temperature measuring and / or sampling method of steelmaking converter molten steel. The method includes the steps that a steelmaking converter stokeholeautomatic temperature measuring and sampling system is adopted for temperature measuring and / or sampling, and the system comprises a stokehole automatic temperature measuring and sampling part, an automatic sleeve dismounting and mounting part and a system electronic control part; the automatic sleeve dismounting and mounting part is composed of a robot and tongs thereof, a sleeve magazine, a molten steel sample and waste sleeve collecting bin and a machine vision system; and the machine vision system measures the actual position of the head of a temperature measuring gun and / or a sampling gun, the deformation of the head of the temperature measuring gun and / or the sampling gun is calculated through preset coordinate comparison of the temperature measuring gun and / or the sampling gun, thedeformation is provided for the robot, and therefore the robot can control the displacement of the tongs according to the deformation to accurately mount various sleeves. During automatic temperaturemeasuring and sampling, a converter is turned over to a certain angle for temperature measuring and sampling, and it is avoided that traditional automatic temperature measuring is completed through vertical insertion from a fire hole.

Description

technical field [0001] The invention relates to a method for automatic temperature measurement and sampling of molten steel in a steelmaking converter, in particular to an automatic temperature measurement or sampling system in front of a steelmaking converter for automatic temperature measurement or sampling of molten steel in a steelmaking converter, or simultaneous measurement Temperature and sampling. The system involves the application of robot and machine vision to the structural design and development of automatic armor for temperature measurement and sampling casing. The method can replace manual work of temperature measurement and sampling, and belongs to the field of design and development of intelligent and automatic equipment and its application in smelting systems. Background technique [0002] At present, there are imported equipment for automatic temperature measurement and sampling of large-tonnage converter molten steel. Their working method is to verticall...

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Problems solved by technology

[0003] During the temperature measurement and sampling process of the automatic temperature measurement and sampling system, there are several problems in the following aspects: When the temperature measurement sleeve is installed in the temperature measurement gun, the insertion dimensional accuracy is high, and the thermocouple at the head of the sleeve will be damaged if it is too deep. If it is too shallow, the contact point will not be touched, and the temperature signal cannot be transmitted to the transmitting device, and it is difficult to achieve this high-precision insertion size control in the existing technology; The difference between the outer diameters of the temperature measuring gun and the sampling gun is small, and the accuracy of the alignment and installation of the casing and the gun is high; the heads of the temperature measuring gun and the sampling gun are easy to bend and deform, and under a certain amount of deformation, the casing and the gun It is difficult to install the head accurately; the outer diameters of the temperature measuring sleeve, temperature measuring protection sleeve and sampling sleeve vary within a certain range, which cannot be reliably grasped

Due to manual operation, the temperature measurement and sampling points in the furnace are different every time, and the results are unstable and fluctuate greatly

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