Ascertaining bulk specific gravity - taking sample from each working cycle, separating over and under size grain and letting fall into container scales for wt. per unit vol.

摘要

In repeated cycles of working stages a sample amt. of fluent material is taken from the stream (3) to provide a classified corn fraction by fulling between predetermined corn boundaries. An amt is volumetrically measured out from this classfied function (10). It wt. is ascertained. The density is calculated from the relation of vol. and wt. of the sample. A sample pick-up (1) is provides as well as a sample separator (2). A sample classifier (6) is provided in the form of a sieve. Over and under sized corn are separated out. A container (14) scale (12) measures the vol. of the sample and the wt. of this vol. USE/ADVANTAGE - Ascertaining quality characteristics, e.g. to control physical state of bulk material such as mositure content, calcination grade etc. Automatic working. Prodn. processes such as burning of cement clinkers or mfr. of expanded clay or roasting of ores contg. sulphate.