Magnetite slurry flow measurement
Release time:
2026-06-04
The sonar volumetric flowmeter overcomes the technical limitations of other flowmeters—such as electromagnetic and ultrasonic flowmeters—through its sonar‑based measurement method, while offering excellent cost‑effectiveness.
1. Benefits
- Unaffected by magnetic materials—when the density or phase composition of the measured medium changes, the ultrasonic flowmeter requires no recalibration.
- Suitable for pipelines made of various materials—steel, PVC, HDPE, with or without liners
- Suitable for solids content at any level—ranging from clean fluids to slurry at the highest concentrations—without the need for recalibration.
- The design that avoids contact with the measured medium eliminates the risk of wear, ensuring an exceptionally long instrument service life.
- Clamp‑on installation eliminates the need to cut or shut down pipelines, saving both production costs and time.
2. Process
In the processing of iron ore or other ores, the mass flow rate of magnetite must be measured accurately to properly balance the grinding and separation systems; moreover, it enables assessment of its impact on actual production output. Precise mass‑flow measurement requires accurate determination of volumetric flow rate and slurry specific gravity.
3. Challenge
Despite their limitations, electromagnetic flowmeters and ultrasonic flowmeters based on the Doppler effect remain the most commonly used instruments for measuring the flow rate of magnetite slurry.
However, to date, the sonar flowmeter remains the only electromagnetic flowmeter capable of accurately measuring the flow rate of magnetite slurry. Doppler ultrasonic flowmeters struggle to maintain high accuracy and stability over long periods, while the magnetic particles in magnetite can interfere with the measurement results of electromagnetic flowmeters; although compensation is possible, its scope is limited. When the slurry contains relatively large particles, wear can lead to electrode failure and pipeline leakage, thereby compromising measurement. Moreover, malfunctions in electromagnetic flowmeters often necessitate unscheduled maintenance and replacement, further increasing production costs.
4. Solution
Using sonar flow meters can effectively overcome the limitations associated with other types of flow meters, delivering accurate and stable measurements while their exceptionally long service life helps reduce costs. An increasing number of customers are opting for sonar flow meters as a replacement for ultrasonic and electromagnetic flow meters.
Sonar flow meters can be used to monitor:
- Concentrate pipeline
-Residue pipeline
- Cyclone feed pipeline
- Cyclone overflow pipeline
- Mill feed pipeline
- Mill discharge pipeline
The sonar flowmeter can be easily clamped onto existing pipelines without requiring shutdown or calibration. When the pipeline is replaced or dismantled, the flowmeter can also be removed with ease.
Solution
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Address:
Building 21, Yangtze Headquarters Base, No. 5 Puzhu North Road, Jiangbei New Area, Nanjing City
Phone:+86 025 58234466\52701863
Email:sli@plapl.com.cn