The slurry electromagnetic flowmeter is based on Faraday's law of electromagnetic induction. When conductive slurry flows through a magnetic field, an induced electromotive force is generated, and its magnitude is proportional to the flow velocity.
The slurry electromagnetic flowmeter is a flow measurement instrument specifically designed for measuring the flow of slurries containing solid particles, with high concentration and high viscosity (such as mineral slurry, coal slurry, paper pulp, cement slurry, food slurry, etc.).
Structure and Features
Wear-resistant and Corrosion-resistant Design
- Lining Materials: Commonly used materials include polyurethane, neoprene rubber, PFE with mesh, ceramic, etc., which are wear-resistant and corrosion-resistant, suitable for high-wear media such as pulp and cement slurry.
- Electrode Materials: 316L stainless steel, Hastelloy B/C, titanium, tantalum, tungsten carbide, etc., selected based on the corrosiveness and wearability of the slurry.
Functional Features
- No Obstructive Components: The measuring tube has no moving parts, no pressure loss, and has low requirements for straight pipe sections (upstream ≥ 5DN, downstream ≥ 3DN).
- Strong Resistance to Impurities: Suitable for slurries containing solid particles and suspended matter, and is not prone to clogging.
- High Protection Grade: IP65/IP68 protection grade, suitable for harsh working environments.
Core Performance Indicators
| Parameter Category |
Standard Model |
Extra Wear-resistant Model |
High Viscosity Model |
| Solid Content |
≤15% |
≤30% |
≤20% (Viscosity ≤ 1000cP) |
| Conductivity |
≥5μS/cm |
≥10μS/cm |
≥20μS/cm |
| Flow Rate Range |
0.05-10m/s |
0.1-8m/s |
0.2-6m/s |
| Accuracy Class |
±0.5%FS |
±0.5%FS |
±0.3%FS |
| Protection Class |
IP67 |
IP68 (10m underwater) |
IP68 |
Application scenarios
- Mining and metallurgy: Measuring mineral pulp, coal pulp, tailings pulp, etc., for process control in mineral processing and smelting.
- Paper industry: Measuring pulp, wood pulp, etc., for the pulp-making and paper-making processes.
- Food : Measuring fruit pulp, milk pulp, medicinal pulp, etc., requiring sanitary design (such as 316L stainless steel + PTFE lining).
- Building materials and environmental protection: Measuring cement pulp, sludge, etc., for building materials production and environmental treatment.