Application of Sonar Flow Meters in the New Tangkili Project, Sierra Leone
Release time:
2026-06-04
Sierra Leone is located in West Africa and boasts favorable natural conditions and abundant mineral resources. Following the collapse of the colonial system after World War II, Sierra Leone gained independence from British colonial rule. Today, the country enjoys political stability and economic recovery, serving as a successful model of peaceful reconstruction—transforming from chaos to governance.
Sierra Leone boasts a unique geological structure and abundant mineral resources, with iron ore serving as a cornerstone of its economic development. In September 2020, Qinghua Investment Co., Ltd. of Sierra Leone took over the Shandong Iron Ore Project; Phase I commenced operations in March 2021. Since going live, the project has achieved end-to-end integration across the entire value chain—from mining and production to rail transport and port‑based maritime shipping—thereby injecting fresh momentum into the development of Sierra Leone’s iron ore industry.
Why use an ultrasonic flowmeter for magnetic iron ore?
Electromagnetic flowmeters operate on the principle of Faraday’s law of electromagnetic induction. When a slurry contains magnetic materials, the flow velocity measured by the electromagnetic flowmeter will deviate significantly from the actual velocity. Moreover, these deviations vary with changes in the slurry’s solid concentration or flow rate, and they are random and unpredictable. As shown in the test conducted by Australia’s FMG Company—data on the measurement errors of electromagnetic flowmeters when measuring magnetic slurries—customers dealing with magnetic iron ores should therefore prioritize ultrasonic flowmeters.
Sonar flowmeters are not only the ideal choice for customers dealing with magnetic iron ore; they are increasingly being adopted for any slurry containing magnetic particles, exhibiting severe abrasion, significant scaling, and entrained air bubbles. Offering precise measurement, maintenance-free operation, and an extended service life, they give mining clients peace of mind.
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