Patent ID: 6510729
Filing Date: 2003-01-28
Classification: B02C,G01N

Abstract:
Device for determining the corrosion of the grinding bodies in a rotary mill comprising a cylindrical shell ring (10) revolving about its longitudinal axis and containing a grinding charge comprising grinding bodies made of metal alloy, the mill having the material that is to be milled pass longitudinally through it, characterized in that at least one grinding body (30) identical to those that make up the grinding charge is fixed to an elastomer or rubber pedestal (28), itself fixed to the interior surface of the shell ring, and in that this grinding body (30) is exposed to the conditions inside the mill and is associated with a reference electrode (36) from which it is electrically insulated, in that the said reference electrode (36) is protected from impact knocks of the charge in the mill that is in electrical contact with the pulp in the mill and in that the said grinding body (30) and the said electrode (36) are electrically connected to a measurement apparatus (18) fixed outside the shell ring of the mill.