METHOD OF BATCH WEIGHT PROPORTIONING Russian patent published in 1995 - IPC

FIELD: weight measuring technology. SUBSTANCE: reference weight is added to mass of material and with the aid of auxiliary (instrumental) meter, mass of bin with material and reference weight is measured, after which mass of bin with material is measured with the aid of working meter; then command is formed for closing the gate of proportioner at the moment when mass of material in bin reaches present magnitude which is less than preset magnitude of batch of material by preset value; regularly, every 10 to 20 cycles of proportioning, reference weight is disconnected during picking of one batch of material and mass of bin with material is measured by means of auxiliary and working meters; than amount of correction of working meter signal is determined as difference between magnitude of signals of working and auxiliary meters; signal of working meter is corrected by the value of found correction in the course of picking next batches of material; mass of material is determined by the calculation formula. EFFECT: enhanced accuracy of proportioning materials. 3 dwg