How to accurately measure the weight of a coal pile?
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Hello everyone. In our company, the coal piles in the coal yard are in irregular shapes. Do you have any effective methods for measuring the tonnage of these coal piles? Are there any articles and materials on this topic? ?
We basically still use the volume formula for a cone, and then multiply it by the bulk density to get the weight~~
If it is not a quadrangular pyramid or a cone, measure it in segments by treating a large pile as multiple smaller piles for calculation.
If that’s not possible, you can measure the perimeter; for the irregular parts, you can compensate by using longer lengths, and ultimately convert it into a regular calculation. Inventory counts always have some degree of error; as long as the overall figure is correct and stays within the acceptable error range, that’s fine.
It is also possible to use a forklift to shape the coal pile into a cone or a frustum before measuring its tonnage, and then calculate the volume. Everyone knows the formula for the volume of a frustum, so I won’t go into details here. Only the volume formula for a frustum of a pyramid is given: V = h/6, where V is the volume of the coal pile, h is the height of the coal pile, a and b are the side lengths of the lower base of the coal pile, and a’ and b’ are the side lengths of the upper base of the coal pile
The measurement data can be approximated as having a regular shape; the volume can be estimated by calculating it and then multiplying by the density. If possible, weigh the object twice to see if there is a significant difference.