The Ash Eye is a much improved instrument based upon the previous Bretby Gammatech Natural Gamma Coal Quality Monitor (NGCQM). It is a non-contacting, fully on-line ash monitor providing second-by-second information on the ash content of conveyed coal.

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Description

Ash Eye On-line ash monitor

The Ash Eye is a much improved instrument based upon the previous Bretby Gammatech Natural Gamma Coal Quality Monitor (NGCQM).
It is a non-contacting, fully on-line ash monitor. Providing second-by-second information on the ash content of conveyed coal.
 
The Ash Eye contains no radio active sources as it uses Natural Gamma Technology. The Ash Eye incorporates a new and improved algorithm leading to greater consistency in ash measurement.
 

Principle of operation

 
The dirt associated with coal contains a much higher concentration of radioactive material than the coal itself. The signal from a natural gamma detector mounted under the conveyor belt contains ash information. When combining this signal with the mass of the material from a belt-weigher you can get a measurement of the ash content.

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