Flow Measurement for Blast Furnace Cooling
Increase Reliability of Critical Furnace Cooling Circuit Leak Detection
Accurate and reliable furnace cooling water flow measurement
Water is used to cool the tuyeres that inject air into the blast furnace. The flow of cooling water at the inlet and outlet of the cooling circuits is monitored to determine if there is a leak in the cooling circuit, which would show up as a difference between the two flows. The flow measurement must be as accurate as possible to quickly identify a leak, and reliable to prevent unnecessary alarms and shutdowns.
A leak in the cooling water circuit changes the dynamics of the cooling system, impacting the reaction in the furnace, and decreasing the performance and efficiency of the furnace. If the leak is not detected in a timely manner and water is injected into the furnace, hydrogen is produced resulting in dangerous safety conditions and causing erosion in the furnace walls and roof that can be expensive and time consuming to repair.
Click to continue reading Accurate and reliable furnace cooling water flow measurement
Product Solutions
A dual-compartment transmitter housing provides isolation from the external environment. Advanced diagnostics and through-the-glass Local Operator Interface offer unparalleled process insight.
- Continually monitor meter health and performance without stopping the process with Smart Meter Verification
- Prevent moisture ingress with dual-compartment transmitter housing
- Improve process management with advanced Digital Signal Processing
Sensor compatibility
Compatible with Rosemount 8705, 8711, and 8721sensors. Compatible with AC and DC powered sensors ofother manufacturers.
Transmitter coil drive current
500mA
Flow rate range
Capable of processing signals from fluids that are travelingbetween 0.04 and 39 ft/s (0.01 to 12 m/s) for both forwardand reverse flow in all sensor sizes. Full scale continuouslyadjustable between –39 and 39 ft/s (–12 to 12 m/s).
Intuitive Local Operator Interface with dedicated keys enhance ease of use and enables instant access to all diagnostic information. Ideal for hazardous environments or difficult-to-reach locations.
- Intuitive Local Operator Interface with dedicated keys for ease of use
- Maximize uptime with Smart Meter Verification which monitors meter health and performance without stopping the process
- Optimize control in noisy applications with High Process Noise diagnostic and Selectable Coil Drive Frequency options
Accuracy
Up to ±0.15% of volumetric flow rate accuracy over 13:1 flow turndowns, ±0.25% over 40:1 flow turndown.
Diagnostic
In Situ Meter Verification, Grounding & Wiring Fault Detection, High Process Noise Detection, Tunable Empty Pipe Detection, Transmitter Fault Detection, Sensor Fault Detection
Compatibility
All Rosemount manufactured Sensors: 8705, 8711, 8721, 8707
Universal capabilities allow E-Series transmitters to be compatible with AC and DC powered sensors from other manufacturers.
Universal capabilities allow E-Series transmitters to be compatible with AC and DC powered sensors from other manufacturers.
Rosemount 8705 Flanged Magnetic Flow Meter Sensors provide long-lasting, reliable performance in even the most challenging applications. An all-welded construction provides a hermetic seal that protects against moisture and other contaminants. The sealed housing ensures maximum sensor reliability by protecting all internal components and wiring from even the most aggressive environments. A removable and replaceable terminal block enables easy repair in the field without the need to replace the entire meter.
- For maximum protection, a fully welded sensor housing provides a hermetic seal
- Avoid process shutdown with a removable and replaceable terminal block that enables repairs in the field
- Capture any potential process fluid leakage with optional secondary containment compartments to surround electrodes
Accuracy
Up to 0.15% of volumetric flow rate accuracy over 13:1 flow turndowns, 0.25% over 40:1 flow turndown
Line Sizes
½-36 inch (15-900 mm)
Liner Materials
PTFE, ETFE, PFA, Polyurethane, Neoprene, Linatex Natural Rubber
The 8782 Slurry Transmitter is ideal for high noise applications where the highest levels of performance are required. Incorporating our latest in advanced signal processing, the 8782 is able to stabilize an otherwise noisy process flow signal without having to compromise on responsiveness. Advanced signal processing and real-time diagnostics deliver measurement confidence and the ability to automatically control the loop leading to: improved product quality, a reduction in raw material cost, minimizing waste and re-work required, and more peace of mind.
- Optimize customizable signal processing settings in noisy applications with high process noise diagnostic and selectable coil drive frequency options
- Selectable levels of advanced signal processing allows for the elimination of signal spikes and noise while maintaining responsiveness
- Increase uptime with Smart Meter Verification which monitors meter health and performance without stopping the process signal
Reference Accuracy
±0.25% with optional ±0.15% high accuracy
Consult Product Data Sheet for full accuracy specifications
Consult Product Data Sheet for full accuracy specifications
Diagnostics
Standard: Grounding and wiring fault, tunable empty pipe, electrode saturation, reverse flow detection and general electronics and meter circuit diagnostics
Optional: Process diagnostics with coated electrode detection and high process noise detection
Optional: Smart Meter Verification Professional
Optional: Process diagnostics with coated electrode detection and high process noise detection
Optional: Smart Meter Verification Professional
Power Supply
AC: 90 to 250V AC, 50-60Hz
DC: 12 to 42V DC
DC: 12 to 42V DC
The MS Slurry Sensor is a robust solution for difficult to measure applications such as sand, high solid content fluids, long pulp fibers, or installations that generate excessive process noise. Designed with these difficult to measure applications in mind, the MS Slurry Sensor overcomes common flow signal challenges to deliver a stable yet responsive flow output.
- Reduce sensor inventory with a dual calibration option
- Ensure reliability in the harshest environments with an all-welded sensor housing
- Guard against installation damage and leading-edge wear with optional lining protectors
