Laserfiche WebLink
FLSmidth USA, Inc. <br /> 7158 S FLSmidth Drive • Midvale•UT 84047-5559• USA M ' D T H <br /> Results of the continuous fill thickening tests are summarized in Table 6. Bed compaction <br /> over time is presented in Figure 6. <br /> Table 6 : Continuous Fill Test Results <br /> Zn Ro <br /> Test Conditions Tailings <br /> Feed Suspended Solids Concentration wt% 12 <br /> Flocculent Dose Range Tested /t 15-50 <br /> Unit Area Range Tested, m2/t d 0.02-0.08 <br /> Est. Bed Sus. Solids wt% - 0.5 hr Retention 60.3 <br /> Est. Bed Sus. Solids wt% - 1 hr Retention 64.7 <br /> Est. Bed Sus. Solids, wt% - 2 hr Retention 67.0 <br /> Est. Bed Sus. Solids wt% - 3 hr Retention 68.5 <br /> Est. Bed Sus. Solids wt% - 6 hr Retention 69.8 <br /> Recommended Total Flocculent Dose /t 20-25 <br /> Design Unit Area m2/t d 0.04 <br /> Design Overflow Clarity, wt% <200 <br /> Underilow Retention Time vs. Solids Concentration <br /> Revenue Mine s Ouray Project <br /> Zo Ro Tailings <br /> ' <br /> 60% <br /> e � I <br /> r+ - <br /> L <br /> t <br /> 4S' <br /> 43% <br /> .. 41% <br /> 3796 —-- r- —z—r- <br /> 0 1 2 3 4 5 6 7 <br /> Underfloor Retention Time,fir <br /> Figure 6: CF Test - U/F Bed Compaction vs. Time Results <br /> Figure 7 and Figure 8 show the dynamic incoming feed portion of the continuous fill test and <br /> its setup. Note that the solids free settling zone remains below the bottom of the feed well. <br /> The solids bed will continue to compact once the incoming feed ceases. <br /> Page 1 13 <br />