A Novel Principle for Molten Steel Level Measurement in Tundish by Using Temperature Gradient

He, Qing; Su, Zhiqi; Xie, Zhi; Zhong, Zhifeng; Yao, Qian

doi:10.1109/tim.2017.2668598

Cited by 20 publications

(4 citation statements)

References 43 publications

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“…In the same way, in [25] properties of mold slags were measured to observed the behavior between crystalline layers of slag and steel surface quality. Correspondingly researches in the literature focus on level measurement [26], slag detection, slag measurement [27] and others [28][29] to improve the quality materials.…”

Section: Feature Descriptors Applied To Slag Characterization On Castmentioning

confidence: 99%

Feature Descriptors Applied to Slag Characterization on Casting Process

Romero-González¹,

Herrera-Navarro²,

Jiménez-Hernández³

et al. 2020

IJISME

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Vision systems are increasingly entering the field of metallurgy, carrying out operations where a human operator is not possible due to the process conditions. The purpose of these systems is the monitoring and control of the process to improve the quality and manufacturing of the products. Nevertheless, the amount of slag, the presence of gases and high temperatures are the main problems that make this task difficult. In this proposal the characterization of the slag is treated, through the analysis of the light changes with the functions of Fourier and Gabor, which allow to identify or locate the location of the slag in the material, so that, in future works the slag It can be segmented, measured or used to detect the level of the metal in the refractory. In addition, results obtained when evaluating sensitivity and precision curves are presented, with which the information recovered by the algorithms is evaluated.

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Section: Feature Descriptors Applied To Slag Characterization On Castmentioning

confidence: 99%

Feature Descriptors Applied to Slag Characterization on Casting Process

Romero-González¹,

Herrera-Navarro²,

Jiménez-Hernández³

et al. 2020

IJISME

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“…Liquid level measurement plays an important role in various industrial processes [1]. It implies the need to measure level under different situations such as environmental conditions, vessels forms, liquid density, corrosiveness, temperature and viscosity [2,3]. Thus, there are several kinds of level sensors available whereby capacitive, optical fiber, radar, ultrasound, time-domain reflectometry, hydrostatic, superconducting, displacer, laser, among others [4,5,6].…”

Section: Introductionmentioning

confidence: 99%

Displacer-Type Liquid Level Sensor with Liquid Density Auto-Compensation

Souza

Carvalho

Canuto

et al. 2020

JICS

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In the classic displacer-type liquid level measuring method, liquid level is calculated via the buoyancy force exerted by the liquid on a displacer. This technology has high linearity, precision, accuracy, ease of installation and low cost. Nonetheless, displacer level sensors have significant sensitivity to variations in liquid density, which hinder its use in industrial applications that such quantity is not held constant. In this paper a novel displacer-type liquid level sensor is presented and analyzed. The method consists of adding another displacer and thus calculating the new measured value by the quotient of the buoyancy forces of both displacers. Therefore, the new measurement is ideally insensitive to the variations in liquid density. A prototype was built and prototype results presented high linearity, being able to mitigate the sensitivity to the liquid density, increasing accuracy in the measurements.

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“…2) The heat loss from the side walls and the bottom of the tundish. 3) The temperature drop of molten steel at the ladle shroud due to the heat loss from the ladle . Based on the idea of induction heating, Ueda et al proposed a patent in order to compensate for the temperature loss of molten steel in the tundish by channel type induction heating .…”

Section: Introductionmentioning

confidence: 99%

Fluid Flow and Heat Transfer in a Tundish with Channel Type Induction Heating

Yang

Lei

et al. 2018

steel research int.

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Because of the high heating efficiency, channel type induction heating is utilized in the tundish in order to reduce the temperature fluctuations of the molten steel in the process of continuous casting. In order to have a deep insight into the complex MHD (magneto hydrodynamic) process in the tundish with channel type induction heating, water model and mathematical model are performed to describe the fluid flow and the heat transfer in the tundish. A non-isothermal water model with channel heater is built to investigate the thermal convection in the tundish. The electromagnetic force and Joule heating are introduced into the momentum equations and the energy conservation equation as a source term, and the coupled flow and temperature field are solved by the finite volume method. The results show that the predicted flow field and temperature field agree with the experimental data. In the case of channel type induction heating, there are two spiral flow in the channel due to electromagnetic force, and the temperature difference of molten steel is 12 C between the inlet and the outlet of the channel due to Joule heating.

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A Novel Principle for Molten Steel Level Measurement in Tundish by Using Temperature Gradient

Cited by 20 publications

References 43 publications

Feature Descriptors Applied to Slag Characterization on Casting Process

Feature Descriptors Applied to Slag Characterization on Casting Process

Displacer-Type Liquid Level Sensor with Liquid Density Auto-Compensation

Fluid Flow and Heat Transfer in a Tundish with Channel Type Induction Heating

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