Bulletin . C O Figure 12.—V-type classifiers. TYPES OF CLASSIFIERS USED. As stated previously, the usual type of classifier used is a series ofV-boxes with hydraulic flow, placed in consecutive order above eachtable, the overflow from one box flowing through a launder to the nextbox. The hydraulic water entere each box at a point near the methods of feeding water and pulp are shown in figure 12. Intype A, figure 12, the pulp is fed into the classifier at a. The relativelycoarser and heavier particles drop into the sorting column, throughthe current of water rising from pipe e,
Bulletin . C O Figure 12.—V-type classifiers. TYPES OF CLASSIFIERS USED. As stated previously, the usual type of classifier used is a series ofV-boxes with hydraulic flow, placed in consecutive order above eachtable, the overflow from one box flowing through a launder to the nextbox. The hydraulic water entere each box at a point near the methods of feeding water and pulp are shown in figure 12. Intype A, figure 12, the pulp is fed into the classifier at a. The relativelycoarser and heavier particles drop into the sorting column, throughthe current of water rising from pipe e, and pass through the dischargepipe d onto the table. The lighter particles pass under the baflEle cand overflow at 5, passing through the launder to the next classifier. 80 MINING AND MILLING OF LEAD AND ZINC TV/^ i^/£^ The baffle c is placed at right angles to the flow of the feed to retardthe speed of the flowing current. Most of the classifiers of the V-box t3pe used in themills have baffles. Type 5, figure 12, is thesame as type A^ exceptthat a wooden block c,shaped like the frustum ofa pyramid, is placed ininverted position at thehead of the sorting column,the four sides being parallelwith and equidistant fromthe sloping sides of theclassifier. The pulp, as itdrops down through thenarrow passage thus form-ed, meets the rising currentof water from the pipe e;hence all the particles dis-charged through d mustpass through this upwardflow. The block c is fas-tened to a vertical shaftthat can be raised or low-ered, thus varying thewidth of the aperture. Theaperture, measured at rightangles to the sides, is usu-ally \ inch to f inch wide,depending on the size of thematerial passing into theclassifier. In C, figure 12, the wateris forced in through a ver-tical pipe e from the top,and not th
Size: 1760px × 1420px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou
