B - Operations – Transporting – 24 – B
Patent
B - Operations, Transporting
24
B
51/1
B24B 1/00 (2006.01)
Patent
CA 2009063
Abstract of the Disclosure A method and an equipment for processing of particularly finely divided material. The material is fed by means of a mechanical feeder device and a pressurized equaliza- tion tank into a fluidization chamber . A fluidized gas-solids suspension received, is accelerated through ac- celeration nozzles into a grinding chamber of a coun- ter-jet grinder so as to grind the solid particles. The ground gas-solids suspension is passed through a con- necting pipe into a centrifugal classifier . A fine fraction is removed as a gas suspension through an opening . Additional air of low pressure is passed into the connecting pipe and the coarse fraction is removed from the centrifugal classifier through a removal opening in the peripheral face of the classifier into a poc- ket outside said peripheral face, whereby the coarse fraction in the pocket is removed batchwise by means of a closing device .
Jouko Niemi
Mccarthy Tetrault Llp
Oy Finnpulva Ab
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