knudsen gold concentrator the larger grinding

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It is an object of this invention to provide a method and system of grinding in which a considerable portion of the grin...

  • Category: Grooms
  • Published: 29/08/2014
  • Current Rating: /5 0 Vote

    Description

    It is an object of this invention to provide a method and system of grinding in which a considerable portion of the grinding media, such as steel balls or non-ferrous pebbles, is passed through the mill together with the material being ground,<a href="http://www.sellercrusher.com/project/knudsen-gold-concentrator.html">knudsen gold concentrator</a> at least some of the grinding media being returned to the mill with the feed.A further object of the invention is to provide a method and system of grinding in which grinding media are discharged from the mill with the material being ground, and are thereafter separated, the larger grinding media only being returned to the mill with the feed. In this way grinding media which are too small to grind efficiently are removed from the mill.


    A still further object of the invention is to provide a method and system of grinding in which grinding media are discharged from a primary mill together with the material being treated, and the discharge is divided into four parts of which the first, constituting the larger balls, is returned to the primary mill with the feed; a second, constituting smaller balls,<a href="http://www.sellercrusher.com/project/ball-mill-germany.html">ball mill germany</a> is fed to a secondary mill; a third part, consisting of the larger particles of ground material, is fed into the primary mill together with said first portion; and the fourth, consisting of finer particles of ground material, is fed to the secondary mill. A still further object of this invention is to provide a grinding system and method involving a primary grinding mill and a secondary grinding mill provided with means for discharging Loth grinding media and material therefrom; means for separating the discharge of the prima.


    ry mill into large and small grinding media and coarse and fine material; means for returning the larger grinding media and coarse particles to the feed end of the primary mill; means for conveying the small grinding media and fines into the feed end of the secondary mill; means for discharging pulp and grinding media from the secondary mill; and means for separating said discharge into (a) grinding media of useful limensions which are returned to the feed end of said secondary mill, (b) grinding media and pieces of lining of dimensions too small for efficient use, which are rejected from the circuit, and (c) ground material.


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