Abstract
The paper presents a concept of dynamic bulk density estimation of a particulate matter stream using a 3-d image analysis system and a conveyor belt scale. A method of image acquisition should be adjusted to the type of scale. The paper presents some laboratory results of static bulk density measurements using the MS Kinect time-of-flight camera and OpenCV/Matlab software. Measurements were made for several different size classes.
Highlights
Importance and range of bulk density measurementsCalled an apparent density, is defined as the mass per unit volume of loosely piled granular material (eg. coal or coke)
The paper presents a concept of dynamic bulk density estimation of a particulate matter stream using a 3-d image analysis system and a conveyor belt scale
The coal bulk density depending on its particle size, impurities, moisture may be in the range of 700 to 1100 kg/m3
Summary
Called an apparent density, is defined as the mass per unit volume of loosely piled granular material (eg. coal or coke). The bulk density, like the material volume, is important for aggregates used in civil engineering [1, 2] since they act as volume fillers to concrete mixes. This parameter is important for coal [3], especially in the case of measuring the stored coal amount in the landfill. It should be noticed that, in accordance with [3] the regulation method of calculating the weight of the stored coal on the basis of the volume and bulk density, is only valid for coarse size classes. Therfore, the analysis performed in this paper was restricted to the coarse size classes
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