Two-stage micronizer and process for reducing oversize...

Details Two-stage micronizer and process for reducing oversize... Two-stage micronizer and process for reducing oversize...

B - Operations, Transporting

02

C

B02C 7/04 (2006.01) B02C 19/00 (2006.01)

Patent

CA 2342106

Integrated first stage (30) and second stage (40) reduction mechanisms reduce coal, minerals, biomass, and other materials. A portion of the reductive work is done in the first stage by passing centrally fet feed material (F) centifugally from rotating rings (24a) to counter rotating rings (24b) with destructive effects. The resulting material significantly reduced in size, subsequently is stripped of oversize in the second stage by passing through closely spaced and specially contoured final pair of annular rings (42a, b) or crushing elements between which particles larger than the limited space are crushed.

L'invention concerne des mécanismes de réduction à premier (30) et second étage (40) intégrés, servant à réduire la dimension du charbon, de minéraux, de la biomasse et d'autres matières. Une partie du travail de réduction s'effectue dans le premier étage. La matière constituant l'alimentation passe par le centre et par centrifugation, des anneaux tournants (24a) aux anneaux tournants opposés(24b) aux effets destructifs. La matière obtenue a une taille réduite de façon significative et est ensuite débarrassée de sa surépaisseur dans le second étage par passage à travers une dernière paire d'anneaux circulaires (42a, b) étroitement espacés et spécialement profilés, ou par broyage des éléments entre lesquels des particules plus grosses que l'espace, limité défini par lesdits éléments, sont broyées.

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