EXPERIMENTAL PROCEDURE
The scheme of the vibrating feeder used in our
experiment is given in figure 7.
The changeable parameters, which govern the regime of
movement and thus affect the efficiency of separation, are
the amplitude and frequency of the vibration, angle of
surface incline, and surface area characteristics, which
determine its friction coefficients.
We have used a commercial laboratory vibrating feeder,
manufactured by Popper Engineering, Haifa, Israel. A
frequency of 3000 cpm was selected by trial and error, as
the one, which gave the most consistent and reproducible
results. The inclination of the vibrating surface was also
determined by trial and error and varied from 4-14°. Two
types of surfaces, acrylic painted steel and stainless steel,
were investigated. Both are common surfaces used in
vibrating feeders. Based on the manufacturer’s experience,
EXPERIMENTAL PROCEDUREThe scheme of the vibrating feeder used in ourexperiment is given in figure 7.The changeable parameters, which govern the regime ofmovement and thus affect the efficiency of separation, arethe amplitude and frequency of the vibration, angle ofsurface incline, and surface area characteristics, whichdetermine its friction coefficients.We have used a commercial laboratory vibrating feeder,manufactured by Popper Engineering, Haifa, Israel. Afrequency of 3000 cpm was selected by trial and error, asthe one, which gave the most consistent and reproducibleresults. The inclination of the vibrating surface was alsodetermined by trial and error and varied from 4-14°. Twotypes of surfaces, acrylic painted steel and stainless steel,were investigated. Both are common surfaces used invibrating feeders. Based on the manufacturer’s experience,
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