The decision this case can inform
Use this record when raw-mix control is unstable because the analyzer or sample presentation is sensitive to moisture and material heterogeneity.
Named industry implementation report. It documents equipment, timing, and achieved LSF control but omits baseline variability and independent verification.
What the public record actually establishes
- F1
CEMMAC managed three quarry zones, and marl moisture undermined the previous contact-based analyzer.
- F2
A non-contact near-infrared analyzer and raw-mix proportioning optimizer were installed; the analyzer entered service in February 2008 and the revised strategy in February 2009.
- F3
The control strategy explicitly accounted for moisture rather than treating the measurement as dry and stable.
- F4
The report states that each 180-tonne mixing-bed segment achieved an LSF target of 80 ±5.
Facts and reported results are kept separate from the lesson a plant may choose to test.
Operating context
Moisture variation in marl undermined a contact-based sampling system and LSF often exceeded the upper process limit.
Intervention or finding
Online near-infrared analysis and a raw-mix optimization strategy accounting for moisture were installed.
Documented result
Industry report says the system achieved LSF 80 +/-5 for each 180-tonne mixing-bed segment.
Plant interpretation
Verify the measurement principle under real moisture and material-presentation conditions before closing the control loop.
Transfer boundary
Baseline variability and independent verification are not published.
Questions to verify at your plant
These are decision checks, not operating instructions. Resolve them through local risk assessment, technical review, and authorization.
- 01
Does the analyzer measurement principle remain valid across real moisture, particle size, bed depth, and presentation conditions?
- 02
How are analyzer bias and drift reconciled with representative laboratory samples?
- 03
Is target performance measured by bed segment, time period, and quarry condition rather than by a broad monthly average?
- 04
What safe fallback governs proportioning when the online measurement is unavailable or implausible?