| dc.description.abstract | In this article, a mechanical sieving machine with an automatic control and vibrator was developed.
It is a device that can be used to sieve granulated materials such as sand for industrial purposes
and food for agricultural and domestic purposes to obtain the required grain sizes. Sieving, either
for industrial, agricultural, or domestic purposes can be done either manually (manual labor) or
mechanically by using an appropriate machine (sieving machine). The manual sieve taking longer
hours and tedious while mechanical sieving takes shorter time with just an operator overseeing the
smooth running of the machine. In industrial operations where sand is required such as for
aggregate mixing in construction or molds for casting in foundry operations, the grain size of the
sand for the particular purpose is very important. Using a sieving machine will enhance the work
and make the sieving faster either for construction or for foundry. The machine uses an electric
motor connected to a reciprocating sieve screen through a connecting rod. There is a switch and
motion sensor that controls the speed and on and off the motor which in turn increases or reduces
the vibration of the screen. Overall, this article provides an overview of the mechanical sand
sieving machine with an automatic and control vibrator, its working principle, design, and
operation. It also highlights the challenges faced in the construction of the machine and makes
recommendations to improve its efficiency. | en_US |
