Equal-thickness screening
is a critical part of mineral processing;
recently, the multistage variable-inclination equal-thickness screen
(MSVIETS) has been utilized in the mining industry across the world.
In this work, a model of the collision mechanics between particles
and the multistage variable-inclination screen surface was established.
The maximum collision force (
F
max
) was
found to be closely related to amplitude, frequency, screen surface
inclination, and number of stages. The time-frequency response characteristics
of multistage (3-, 4-, and 5-STAGE) screen surfaces were studied by
the vibration test analysis system. The permeation screen distribution
law of grain groups on the screen surface was revealed. The obtained
results show the best screening performance can be obtained from the
5-STAGE scheme with a screening efficiency of higher than 95% and
total mismatch content of less than 2%. The synergistic mechanism
between two of the parameters was revealed by Box–Behnken response
surface methodology (BBRSM). Then, the correlation between the screening
evaluation index and the multiple parameters was obtained, and the
significant order of the parameters influencing the screening evaluation
index was
F
t
>
f
>
n
.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.