| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 237927 | Powder Technology | 2011 | 9 Pages |
Instead of the frequently applied monochromatic light probes a whie light fibre optic system was employed at the Laboratory of Mechanical Process Design, TU Dortmund University, in order to exploit the color in formations for concentration measurements within bulk solid.The system is applied to obtain local particle concentrations of blue- and red-colored quartz sand within the bed of a rotary drum. 16 solid mixtures with one or two particle sizes from 100 μm to 2000 μm and different species concentration were analyzed and the relationship between probe measurement values and red sand content was determined by statistical regression methods.After transformation of the data, linear models were found to derive the red sand content from given measurement values. Based thereupon, an all-purpose scheme for mono- and bi-disperse solid mixtures was developed and verified in an example with a mean error of 5%.
Graphical AbstractFigure optionsDownload full-size imageDownload as PowerPoint slideA fibre optic system was employed to exploit the color in formations for concentration measurements within bulk solids. Colored Solid mixtures with different particle sizes and species concentration were analyzed and the relationship between probe measurement values and component content was determined by statistical regression methods. Furtheron an example for technical usage is shown.Research Highlights► A new measurement system was described to analyze particle mixtures quantitatively. ► The system works very well for particles below 0.6 times probe diameter. ► The usability was shown for the analysis of segregated mixtures in rotary kilns.
