A METHOD AND AN ARRANGEMENT FOR CONTROLLING OF A COMMINUTION PROCESS

The present invention relates to the field of mineral and metallurgical processes, to comminution processing or disintegrating in general and to comminution processing by crushers and tumbling mills, and more particularly to a method and arrangement for controlling of a comminution process. An arrangement for controlling of a comminution process according to the present invention has a system for monitoring the flow of ore (11) before entering a grinding circuit (10), (19) of said comminution process, which said monitoring system of said controlling arrangement comprises an imaging system (12), (20), said imaging system (12), (20) measuring 3D reconstruction measurement data (21) for reconstruction of a three-dimensional image profile (32) of said ore (11); which said controlling arrangement comprises a control block (27), (46) receiving a calculated rock size distribution data (23) of said ore (11), said rock size distribution data (23) being calculated based on said measured 3D reconstruction measurement data (21); and which said control block (27), (46) receiving one or more distinct property values for one or more rock size variables said one or more distinct property values being calculated based on said measured 3D reconstruction measurement data (21). La présente invention concerne le domaine des processus minéraux et métallurgiques, le traitement de comminution ou la désintégration en général et le traitement de comminution par concasseurs et par tambours dessableurs, et plus particulièrement un procédé et un agencement pour commander un processus de comminution. Un agencement destiné à commander un processus de comminution selon la présente invention comporte un système permettant de surveiller le flux de minerai (11) avant d'entrer dans un circuit de broyage (10), (19) dudit processus de comminution, ledit système de surveillance dudit agencement de commande comprenant un système d'imagerie (12), (20), ledit système d'imagerie (12), (20) mesurant des données de mesure de reconstruction 3D (21) pour reconstruction d'un profil d'image tridimensionnel (32) dudit minerai (11) ; ledit agencement de commande comprend un bloc de commande (27), (46) recevant des données de répartition de taille de roche (23) calculées dudit minerai (11), lesdites données de répartition de taille de roche (23) étant calculées sur la base desdites données de mesure de reconstruction 3D (21) mesurées ; et ledit bloc de commande (27), (46) recevant une ou plusieurs valeurs d