B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
Dispositif de separation granulometrique selective de matieres pulverulentes solides, a action centrifuge, et procede d'utilisation d'un tel dispositif
Appareil de separation a air pour separer des materiaux constitues de petites particules de materiaux constitues de grosses particules en utilisant un courant d'air