GammaScan real time data on coal quality provides better control and drives operational decisions regarding the use and management of the resource within coal fired power stations.
Sampling and laboratory analysis only provide a “snapshot” or “average” of the past whilst GammaScan can provide a vision into the future outcomes of coal quality management.
GammaScan’s many practical design features make it by far the simplest Online Coal Ash analyser to install, calibrate and operate.
GammaScan provides instantaneous, continuous, on-belt CV-in-coal data for real-time process control, rapid Return on Investment through reduced laboratory analysis, and optimisation of plant operation in real time
The GammaScan Analyser is an on-line “natural gamma measurement system which is easily installed on conveyor belts.
The system does not contain any nucleonic sources and therefore does not require a radiation licence for its use. The GammaScan measures the low levels of naturally occurring gamma radiation in the coal being transported on a conveyor. This radiation mainly arises from elements like U, K, and Th which are naturally present in coal. The amount of these elements present has been shown to correlate well with the amount of the main Ash forming elements (Si, Fe, Al, Ca) and so the gamma count rate correlates to ash content.
By combining the ash measurement with moisture, tonnage and the DAFV (Dry Ash Free Value) of the coal CV can accurately be determined.