PREPARATION OF PETROLEUM PITCH-WATER SLURRY

摘要

A grain sorter for use in a rotary type rice hulling and sorting device comprising a hulling part, a pneumatical sorting part, sorting cylinders rotatably installed so that mixed rice grains may be fed from one end and the sorter rice grains may be discharged from the other end. The sorting cylinders have a large number of recesses formed on their internal surface and troughs for taking out the sorted rice grains received by the recesses which are installed inside the sorting cylinder. The troughs consist of (1), a plurality of troughs for taking out finished sorted rice grains of the sorted rice grains received by the recesses and (2) a plurality of troughs for taking out sorted rice grains, which must be sorted again, of the sorted rice grains received by the recesses.