Magnetite Slurry Flow Measurement
Release time:
2025-12-22
The sonar volumetric flowmeter overcomes the technical limitations of other flowmeters—such as electromagnetic flowmeters and ultrasonic flowmeters—through its sonar measurement method, and offers excellent cost-effectiveness.
1. Benefits
- Not affected by magnetic substances—When the density or mixing state of the measured medium changes, the sonar flowmeter does not require recalibration.
- Suitable for pipelines made of various materials—steel, PVC, HDPE, with and without liners.
- Suitable for solids content at any level—from clean fluids to slurries at the highest concentrations—no recalibration required.
- The design that does not come into contact with the measured medium eliminates the risk of wear and tear, ensuring an exceptionally long service life for the instrument.
- The clamp-on installation method eliminates the need to break the pipe or halt production, thereby saving both production costs and time.
2. Process
In the processing of iron ore or other ores, the mass flow rate of magnetite needs to be measured accurately in order to properly balance the grinding system and the separation system. Moreover, accurate measurement of the mass flow rate enables us to determine its impact on actual production output. Accurate measurement of the mass flow rate requires precise measurement of both the volumetric flow rate and the specific gravity of the slurry.
3. Challenge
Despite their shortcomings, electromagnetic flowmeters or ultrasonic flowmeters based on the Doppler effect are still widely used today for measuring the slurry flow rate of magnetite.
However, to date, the ultrasonic 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 the long term, while magnetic substances present in magnetite can affect the measurement results of electromagnetic flowmeters. Although compensation is possible, its scope is limited. When the slurry contains relatively large particles, electrode failure and pipeline leakage may occur due to abrasion, thereby compromising measurement accuracy. Moreover, failures in electromagnetic flowmeters can lead to unscheduled maintenance and replacements, increasing production costs.
4. Solution
Using sonar flow meters can effectively overcome the limitations associated with other types of flow meters, providing accurate and stable readings. Moreover, their exceptionally long instrument lifespan helps reduce costs. An increasing number of customers are switching to sonar flow meters as a replacement for ultrasonic and electromagnetic flow meters.
Sonar flow meters can be used to monitor:
-Concentrate pipeline
- Residue pipeline
- Feed pipeline for the hydrocyclone
- Hydrocyclone overflow line
- Mill feed line
- Mill discharge pipeline
The sonar flowmeter can be easily clamped onto existing pipelines without requiring shutdown or calibration. When the pipeline is replaced or removed, the flowmeter can also be effortlessly taken off.
Industry Applications
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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