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AssigneeAlbert Zubragel Maschinenbau GmbH
InventorAlbert Zubragel
Estimating the term…
A method and device for determining the delivered volume of a lot of bulk material, comprising collecting at least one sample from the lot, screening the sample, filling a measuring container with the screened sample, weighing the sample, determining the bulk density of the sample by dividing the measured weight of the sample by the volume of the measuring container, and dividing the weight of the lot by the bulk density to obtain the volume of the lot. The invention includes a device for performing the method comprising a mechanically-operated screening plant comprising a rolling screen. The screening plant screens several different grain fractions in one screening passage. A fine grain fraction is screened out first and each screened grain fraction is subsequently coarser than the preceding screened fraction. Each subsequent grain fraction is screened together with the overrun of the fraction collected in the preceding passage. Thus, the composition of the screened sample is representative of the lot.
A method for determining the delivered volume of a batch or lot of bulk material, comprising the steps of:
Dependencies are inferred from the claim text.