Authors: D.N. Shibaeva, P.A. Shumilov, V.V. Bulatov, S.V. Tereshchenko

Title of the article: Determination of the boundary capacity of a radiometric separator using immitation modeling

Year: 2019, Issue: 2, Pages: 39-45

Branch of knowledge: 05.05.06 Mining machines

Index UDK: 622.7

DOI: 10.26730/1816-4528-2019-2-39-45

Abstract: The article structures the factors influencing the capacity of radiometric separators. The examples of existing Russian and foreign sorting equipment specimens are given. A model stand has been designed which simulates the work of principal units of a radiometric separator. The article describes the major principles to imitate the movement of a transporting device and controlling sensors and to form a signal stream of secondary radiation from the studied sample’s surface and its registration with a photodetector. The article also presents the principles of the operation of a device for visualizing the level of a recorded signal and a device for processing and generating a control signal to the actuator.
The assessment was made of the processing velocity of the recorded stream of secondary radiation from the surface of the sample and the generation of a command for the actuator. The result has been analysed of the passage time of an ore piece through the irradiation and registration zone for the Khibiny apatite-containing ores. It was established that the registration of the apatite’s luminescence intensity for a 2 ms time is a sufficient condition for its effective separation from the mineral mixture. The calculated boundary value of the luminescent separator capacity is 119.2 t / h.

Key words: radiometric separator radiometric separator capacity modelling microcontrollers signal processing velocity apatite-containing ore luminescence kinetics

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