WALKER – A Portable Meter of Ash Content in Hard and Brown Coal and Lignite – Without Isotope

Fully automatic, quick measurement of ash content in coal at storage yard and dumping ground, in tanks and wagons.

APPLICATION
Quick quality assessment of:
– run-of-mine,
– preparation products,
– screening products,
– coal blends,
– unknown coals before preparation,
– feed to coal preparation plants and power stations.

ADVANTAGES:
– high accuracy of measuring,
– simple calibration and operation,
– cost, time and energy saving,
– operation with computer: data base, reports.

TECHNICAL DATA:
Principle of operation: Measurement of natural gamma radioactivity of coal.
Battery life between charging: Depends on working temperature; accumulator.
12 V/1,8 Ah; Min. 5 hours’ continuous operation at ~20 oC.
Working temperature: -20 oC to 50 oC.
Number of stored calibration: 16 different calibrations can be straight forward and undertaken by a customer.
Number of measurements per pile: 99.
Measurement time: 5 – 999 s (to be chosen).
Readings of Ash %: Instant.
Accuracy: Depends on type of coal: mean ó = 1 % ash.
Data Computerization: The data can be loaded down to a computer for later analysis; RS 232 (9600,n,8,1).
Weight: < 7 kg (total)