Level Measurement for Crushers in Metal Ore Processing
Accurately measure levels in fast-moving crushing applications to optimize crusher maintenance and operations.
Monitor Fast-Moving Levels with Non-Contacting Radar Level Technology
Raw material is brought into the crusher for initial grinding and size reduction. Trucks or conveyor systems will bring material into the crusher where it is ground into smaller pieces. A screen (grizzly) may be included below the crusher to sort the rocks so that the smaller pieces go through and the larger pieces are caught for re-grinding. A minimal amount of material should be maintained on the screen to act as a buffer to protect the screen from the impact of larger rock. As the material is brought into the crusher, it moves quickly through the crushing process.
The fast-moving level must be monitored to determine when the material reaches a minimum level so that the next load can be started. The material is irregularly shaped and very dusty. The overall distance may be a far as 30 m (98 ft).
Click to continue reading Monitor Fast-Moving Levels with Non-Contacting Radar Level Technology
Product Solutions
The Rosemount™ 5408 Non-Contacting Radar Level Transmitter uses enhanced technology and Human Centered Design to deliver accurate, reliable measurements on both liquid and solid materials. Using two-wire FMCW technology the Rosemount 5408 deploys a continuous echo to maximize radar signal strength and produce a more robust and reliable measurement. Delivering ease-of-use at every touch point, the Rosemount 5408 uses an intuitive software interface to guide the operator through installation, commissioning, proof-testing and maintenance. Powerful onboard diagnostics suite proactively monitors transmitter health and alerts if there is an issue. Safety certified to IEC 61508 for SIL 2 applications, the Rosemount 5408:SIS reduces cost of risk, increases efficiency and protects people and the environment.
- Low 12V dc lift-off voltage
- Immune to intermittent power loss
- Unique PTFE seal design eliminates the need for o-rings
Accuracy
Standard: ± 0.08 in. (± 2 mm)
Ultra accuracy: ± 0.04in. (± 1mm)
Ultra accuracy: ± 0.04in. (± 1mm)
Measurement Range
492 ft (150m), 82 ft (25 m) for Rosemount 5408:SIS in Safety mode
Operating Pressure
-15 to 1450 psi (-1 to 100 bar)
The Rosemount 2555 Solids Level Switch is robust and suitable for all solids bulk media in all types of vessels. It can be used for full, demand or empty detection and is designed for low dielectric medias and extreme conditions such as high temperatures, high mechanical stress and high tensile forces.
- Suitable for most bulk materials in various applications even with high temperature and pressure
- "Active Shield Technology" protects against media build up or caking to ensure complete reliability
- Measurement of medias with dielectric constant down to 1.5
Operating Pressure
363 psi (25 bar)
Operating Temperature
-40 to 932°F (-40 to 500°C)
Certifications/Approvals
CE, ATEX, IECEx, FM, FMc, EHEDG
