Thae Il Gwang, a researcher at the Faculty of Mining Engineering, has built an experimental jaw crusher for analyzing the working properties of jaw crushers commonly used in stoping faces and concentrating mills.
It is composed of a jaw crusher, sensors and a control circuit.
The crusher consists of a body with a fixed jaw, a movable jaw, an eccentric shaft, a connecting rod, a drawbar and a spring. Some structural modification was made to the drawbar and eccentric shaft to install necessary units for experiments.
Sensors are installed on the connecting rod and the eccentric shaft, respectively. They are used for measuring compressive force on the connecting rod and angular displacement on the eccentric shaft.
The control circuit can be connected with a computer to control the jaw crusher and to collect and send measured data.
The data sent to the computer is analyzed by an application for working properties and the computer displays angular displacement, angular velocity and moment of the eccentric shaft, crushing force on the movable jaw, and power consumption for crushing.
This device is used for analyzing fracture mechanism of different ores or for improving working properties of jaw crushers.
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