Online Continuous Measuring, Real-Time display of the Ash Content The instrument is based on the principle of the reactions that take place inside the nucleus of the elements being analysed. Due to the excitation of the nucleus, different elements will emit Gamma rays with their own characteristics, This system is programmed to identify the different nucleus types by analysing the y-ray peak value emitted and quantify the elements through the analysis of y-ray peak area.
The detection device is placed above the conveyor belt while the radioactive source is positioned below the belt. When coal flow through the analysis section which is irradiated by the Radioactive source, some radio nuclide will produce inelastic scattered reaction with high-energy neutrons to emit characteristic y-rays. The arrangement of the detector and the neutron generator has a slow integration and some high-energy neutrons will become low-energy ones because of this slow integration The low-energy neutrons generate and emit characteristic y-rays. The detection system analyses element types contained in the material based on y-ray energy and determine weight percentage content based on the corresponding peak area.
Uses Dual y(Gamma Ray) source: Am-241 and Cs-137
Model | Online Coal Ash Analyzer |
Range | Low Ash Coal (ash content <15%), basic error: < 0.5%. |
Accuracy | Medium Ash Coal (ash content of 15% to 25%, basic error: < 1%. |
| High Ash Coal (ash content> 45%), basic error: <+-2%. | |
Repeatability | Repeated measurements of the same coal of 5 minutes' frequency displayed an average coefficient of variation less than 1%. |
Static stability | The instrument system can operate at temperatures upto 50 deg C |
| Can measure different types of incoming coal on the belt. The probe has to be calibrated as per coal type or previous calibration values selected. | |
| Permits signal transmission within 1000 meters without interference. Additional signal amplifiers can be integrated for larger distances | |
Power supply voltage | AC 220V 10V, 50Hz, |
Power consumption | 500W approximately |
Note: Due to process of continuous improvements, specifications are subject to change without prior notice
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