ABSTRACT
Technology of milling and grinding machine is one of the simplest methods
of processing agricultural raw materials alternative to the traditional
methods of grain/tuber processing using stone, mortar and pestle. However,
machines constructed using metal plates results in tearing and wearing
away of the materials of construction. The effect of this is the contamination
of the processed foodstuff. This is known to have negative health
implications when accumulated and consumed in large quantities. In this
study a magnetic sieve grinding machine was designed, constructed and the
performance evaluation undertaken in order to remove the toxic metal filing
contaminants that cause the health hazard in food when consumed. The
machine consists of a 0.04m3 capacity hopper, a machine housing, a blower
with 13.35m/s air speed, a cyclone, set of hammers that effect the size
reduction of the materials been fed, 12cm width rotor pulley, a shaft of
50cm in length and a magnetic sieve that separate metal filings from the
grounded food stuff. The machine is powered by a 5.96 kW diesel engine.
Performance evaluation showed that 10.5g of the machine parts were worn
out after 10hours of grinding. The throughput capacity and the efficiency of
the machine are 600kg/hr and 87.5% respectively. Thus, from the results of
the investigation, the objectives of the study were achieved. The use of the
magnetic sieve grinding machine by local food processors will help reduce
the rate of food contaminations during post harvest processing of
biomaterials and also safeguard people’s health through food security.
AUDU, N (2021). Design, Construction And Performance Evaluation Of A Magnetic Sieve Grinding Machine. Afribary. Retrieved from https://tracking.afribary.com/works/design-construction-and-performance-evaluation-of-a-magnetic-sieve-grinding-machine
AUDU, NGABEA "Design, Construction And Performance Evaluation Of A Magnetic Sieve Grinding Machine" Afribary. Afribary, 13 May. 2021, https://tracking.afribary.com/works/design-construction-and-performance-evaluation-of-a-magnetic-sieve-grinding-machine. Accessed 13 Nov. 2024.
AUDU, NGABEA . "Design, Construction And Performance Evaluation Of A Magnetic Sieve Grinding Machine". Afribary, Afribary, 13 May. 2021. Web. 13 Nov. 2024. < https://tracking.afribary.com/works/design-construction-and-performance-evaluation-of-a-magnetic-sieve-grinding-machine >.
AUDU, NGABEA . "Design, Construction And Performance Evaluation Of A Magnetic Sieve Grinding Machine" Afribary (2021). Accessed November 13, 2024. https://tracking.afribary.com/works/design-construction-and-performance-evaluation-of-a-magnetic-sieve-grinding-machine