System and method for measuring ash content and calorified value of coal
US8989344B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2012 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Sep 13, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N23/20091
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and a method for measuring an ash content and a calorific value of a coal are provided. The system comprises: an X ray device, disposed over the coal and configured to emit an X ray to the coal; at least one X ray measuring device, disposed over the coal and configured to measure an energy spectrum of an X ray reflected by the coal; a distance sensor, disposed over the coal and configured to measure a distance between the coal and the at least one X ray measuring device; and a computing device, configured to receive the energy spectrum and the distance from the at least one X ray measuring device and the distance sensor and to compute the ash content and the calorific value of the coal according to the energy spectrum and the distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.