Key Takeaways & Executive Findings
- •• Non-invasive measurement system using electrical and optical signals overcomes sensor vibration inaccuracies in flip-flow screens. • Trajectory tracking algorithm and laser reflection enable visual measurement of screen-body and screen-plate kinematics. • Wi-Fi and Bluetooth-based tracer particle tracking electrically measures mineral particle kinematics. • Achieves intelligent fusion and perception of kinematic information for all components, enhancing monitoring and fault detection.
Abstract
Flip-flow screens offer unique advantages in grading fine-grained materials. To address inaccuracies caused by sensor vibrations in traditional contact measurement methods, we constructed a non-invasive measurement system based on electrical and optical signals. A trajectory tracking algorithm for the screen-body was developed to visually measure the kinematics. Employing the principle of laser reflection for distance measurement, optical techniques were performed to capture the kinematic information of the screen-plate. Additionally, by using Wi-Fi and Bluetooth transmission of electrical signals, tracer particle tracking technology was implemented to electrically measure the kinematic information of mineral particles. Consequently, intelligent fusion and perception of the kinematic information for the screen-body, screen-plate, and particles in the screening system have been achieved.
1. Introduction
Screening, a key step in mineral processing and the preparation of metallurgical raw materials, mainly facilitates grading operations [1–4]. Screening operations ensure that the feeding particle size requirements of the sorting equipment are met [5–6], allowing only raw ores with acceptable particle sizes to proceed to subsequent sorting and quality improvement processes.
Screening is mainly used for mineral classification, desliming, dehydration, and media removal operations [7–9]. In metallurgical processes, inspection and screening are performed prior to feeding sintered ore into the blast furnace to control particle size composition and mitigate fluctuations in material layer permeability, thereby enhancing the utilization coefficient of the blast furnace. Therefore, the stable and reliable operation of screening equipment is crucial for effective material classification [10–13].
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Weinan Wang, Chenlong Duan, Songxue Zhang, Jiahao Pan, Xu Hou, Pengfei Mao, Tatiana Aleksandrova (2025). Intelligent perception of kinematic information for a flip-flow screening system based on non-invasive measurement. Int. Journal of Minerals, Metallurgy and Materials (矿物冶金与材料学报). https://doi.org/10.1007/s12613-025-3147-1
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Frequently Asked Questions
What is the main advantage of the non-invasive measurement system proposed in this paper?
The non-invasive measurement system eliminates inaccuracies caused by sensor vibrations in traditional contact measurement methods, providing more reliable kinematic data for flip-flow screens.
How is the kinematic information of the screen-body measured?
A trajectory tracking algorithm is developed to visually measure the screen-body's kinematics, likely using optical signals.
What techniques are used to measure the screen-plate and particle kinematics?
Laser reflection is used for distance measurement to capture screen-plate kinematics, while Wi-Fi and Bluetooth transmission of electrical signals enable tracer particle tracking for particle kinematics.
What is the significance of intelligent fusion and perception in this context?
It allows for real-time monitoring and fault detection in flip-flow screening systems, improving operational efficiency and reducing downtime.
What are the potential applications of this technology?
The technology can be applied in mineral processing and metallurgical industries for intelligent monitoring of screening equipment, enhancing process control and maintenance.
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