https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:38042 Wed 28 Jul 2021 14:23:04 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:45803 TM Classifier (RC^TM) consists of a fluidized bed housing, with a system of parallel inclined channels above. This system performs a simultaneous gravity separation and desliming of the feed material, utilising the inclined channels in order to retain the relatively fine dense particles. These particles promote the formation of an autogenous dense medium within the fluidized bed. Relatively large, low density particles are displaced from the fluidized bed and conveyed upwards through the inclined channels reporting to the overflow with other finer particles. Given the hydrodynamic role of both the particle size and density in determining the particle transport through a water based suspension, all gravity separators operate over a limited size range. In the case of the REFLUX^TM Classifier, efficient separations can be produced across a very broad size range, from nearly 10 mm down to 10 m, however, for a given application the size range is much more limited. This study was concerned with the processing of dense minerals over a broad size range, and the need for multistage processing. Here the overflow from the first stage cascades to the second stage, incorporating coarse gangue rejection. This approach is shown to deliver remarkably high grades and recovery.]]> Wed 23 Nov 2022 16:37:20 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:39781 Wed 23 Aug 2023 10:11:39 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:34792 3 in both cases. For the binary mixture, particle species of size 200 and 300 µm were used, while for the multicomponent mixture eight particle species with sizes between 49 and 421 µm were selected. The partition curves obtained from the model predictions were successfully validated with published experimental results. The separation performance of the RC was characterised by analysing how the imperfection and the d₅₀ values changed with the process variables. Furthermore, the simulation data were used for the first time to demonstrate the concentration distribution of the individual solid particle species in the fluidization and inclined sections of the RC. This study showed that the particle species with sizes closer to the d₅₀ values had a larger presence in both the vertical and inclined sections of the RC. Thus, the total concentration inside the RC mainly consisted of those particle species.]]> Wed 15 Feb 2023 09:24:51 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44629 Wed 13 Mar 2024 14:03:39 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:24556 50 and Ep values. Thus, the basic framework for incorporating the effects of shear induced lift is now in place.]]> Wed 13 Jan 2021 16:31:14 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:17146 Wed 11 Apr 2018 15:31:09 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:14125 Wed 11 Apr 2018 15:14:24 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:14124 Wed 11 Apr 2018 13:22:12 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:14592 Wed 11 Apr 2018 13:09:05 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:11274 Wed 11 Apr 2018 10:08:45 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:515 Thu 25 Jul 2013 09:10:26 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:32955 Thu 16 Aug 2018 13:35:45 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:38186 Thu 04 May 2023 11:58:16 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:9711 Sat 24 Mar 2018 08:34:35 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:8077 Sat 24 Mar 2018 08:34:27 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:8080 Sat 24 Mar 2018 08:34:26 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:1230 Sat 24 Mar 2018 08:28:33 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:1242 Sat 24 Mar 2018 08:28:30 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:2913 Sat 24 Mar 2018 08:27:58 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:12519 Sat 24 Mar 2018 08:16:02 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:10884 Sat 24 Mar 2018 08:11:33 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:19002 Sat 24 Mar 2018 08:05:33 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:20522 Sat 24 Mar 2018 08:02:34 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:20503 2h. A product grade of 75% was achieved from a feed with a grade of only 0.53%, corresponding to an upgrade of 142. Here, the recovery of the cenospheres was 41%. By increasing the overflow product rate, a significantly higher recovery of 64% was achieved, but at a much lower upgrade of 33. In both cases most of the losses were attributed to fine cenosphere particles, less than 50 μmm, being entrained to the underflow.]]> Sat 24 Mar 2018 07:59:03 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:5255 Sat 24 Mar 2018 07:46:25 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:27493 Sat 24 Mar 2018 07:25:39 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:22086 Sat 24 Mar 2018 07:15:16 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:40726 Mon 18 Jul 2022 11:41:20 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37747 Mon 08 Apr 2024 10:18:43 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:38185 Mon 06 May 2024 14:27:36 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37540 3. The fluidized sand medium, subjected to vibration, expanded towards the upper screen, permeating strongly through the large Sink-Hole, and to a lesser extent through the finer apertures. In fact, the excess sand on the upper screen then returned back to the lower fluidized bed via the fine screen apertures. The upward movement of the suspension through the Sink-Hole produced a strong density based separation of the larger tracer particles. It was possible to achieve sharp separation at different separation densities under batch conditions. This paper reports the effect of varying air rate and bed mass on the separation performance. Density cut points in the range 2500 to 3200 kg/m³ were obtained, which are significantly higher than the density of fluidised media, at separation efficiency (Ep) values of around 0.15.]]> Fri 26 Feb 2021 09:40:51 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:41090 Fri 22 Jul 2022 17:18:18 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:51085 Fri 18 Aug 2023 12:05:30 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:39674 Fri 17 Jun 2022 15:32:11 AEST ]]>