B - Operations – Transporting – 07 – B
Patent
B - Operations, Transporting
07
B
341/110, 341/33
B07B 1/42 (2006.01) B03B 9/00 (2006.01) B07B 1/08 (2006.01) B07B 9/00 (2006.01) B07B 13/18 (2006.01) B28C 7/00 (2006.01) B65G 43/08 (2006.01)
Patent
CA 1156742
ABSTRACT OF THE DISCLOSURE A control system for a particulate material treatment plant comprises a rotating screen which produces undersize and oversize fractions and which is controllable to vary one size fraction relatively to the other size fraction, preparation or dense medium washer producing a relatively low ash oversize fraction and a relatively high ash oversize fraction and two storage bunkers for the undersize fraction and for the relatively low ash oversize fraction, respectively. The control system has sensors for sensing the amounts of particulate material in each of the two storage bunkers and for deriving signals indicative of the sensed amounts. Control means receive the derived signals and control the operation of the rotating screen in accordance with the received signals.
379907
Coal Industry (patents) Limited
Fetherstonhaugh & Co.
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