Radiation Thermometer Arm for Cast Slab Temperature Measurement
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Solution Overview
Problem
Existing temperature measuring devices for cast slabs in continuous casting machines face challenges in maintaining accurate measurements due to steam and dust interference, difficulty in measuring edge temperatures, and poor maintainability, leading to issues with measurement accuracy and maintenance efficiency.
Innovation Solution
A temperature measuring device with a radiation thermometer mounted on a rotatable arm member, adjustable in height and length, allowing for precise positioning between 1.0 to 4.5 meters from the cast slab surface, and featuring a telescopic mechanism for easy movement and maintenance, reducing steam interference and facilitating maintenance without stopping the casting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the radiation thermometer is positioned close to the cast slab surface for accurate measurement, then measurement precision is improved, but steam and dust interference increases
Solution Approach 1:
The patent introduces an intermediary substance (steam-generating agent) that is sprayed between the thermometer and the cast slab. This intermediary creates a controlled steam barrier that prevents dust and unwanted steam from reaching the thermometer lens, while the thermometer remains positioned close to the slab surface for accurate measurement. The steam generated by the intermediary substance acts as a protective medium rather than a harmful factor.
2Reliability
If the thermometer is fixed in position for continuous measurement, then measurement stability is improved, but maintenance difficulty increases
Solution Approach 1:
The patent transforms the fixed thermometer position into a dynamic, adjustable configuration. The thermometer is mounted on a movable support structure that allows it to be repositioned along the cast slab. This enables the thermometer to remain in an optimal measurement position during operation while allowing easy access for maintenance by moving the thermometer to a serviceable location, thus combining measurement stability with maintenance ease.
3Adaptability or versatility
If the thermometer is positioned at the edge of the casting area, then edge temperature measurement is enabled, but measurement accuracy decreases due to environmental interference
Solution Approach 1:
The patent applies local quality by positioning the steam-generating intermediary substance specifically at the edge measurement location. The steam barrier is localized to the area where the thermometer measures edge temperature, creating a protected micro-environment that shields the thermometer from environmental interference such as dust and unwanted steam. This localized approach enables accurate edge temperature measurement without requiring the thermometer to be positioned far from the slab surface.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively suppresses steam and dust effects, enabling accurate surface temperature measurement across the cast slab width, including edges, while simplifying maintenance by allowing the thermometer to be moved without interrupting the casting process, thus improving measurement accuracy and maintainability.
Implementation Method 1
a radiation thermometer (19) which is provided at a distal end portion of the arm member (17)
Data Source
AI summary
A temperature measuring device, which is used in a continuous casting machine, measures the surface temperature of a part or all of a cast slab in a width direction of the cast slab, which is drawn from a mold and conveyed by rollers, in a secondary cooling zone of the continuous casting machine. The temperature measuring device includes a support member that is installed on the side of roller support parts by which the rollers are rotatably supported; an arm member of which a proximal portion is rotatably mounted on the support member; and a radiation thermometer which is provided at a distal end portion of the arm member and of which a light receiving opening is disposed at a position corresponding to a height in the range of 1.0 to 4.5 m from the surface of the cast slab.