
Khumani Iron Ore Mine paste disposal and water recovery system T. Du Toit*, M. Crozier and G. De Swart, *Khumani Iron Ore Mine ASSMANG, WesTech Process Equipment Africa (Pty) Ltd and Geotail, South Africa (Paper 24)
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Mexican iron ore mine surface paste tailings system . Mexican iron ore minesurface paste tailings system development: a case study L Botham and J Johnson 46 Paste 2018, Perth, Australia Figure 3 Benchscale rheology test result HaakeTM ViscotesterTM 550 The recommended paste type thickener for this application is the WesTech HiDenistyTM and the general dimensions of 15 m diameter, an 8 m ...
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Nov 9, 2020T. du Toit and M. Crozier, Khumani iron ore mine paste disposal and water recovery system, J. South. Afr. Inst. Min. Metall., 112 (2012), No. 3, p. 211. Google Scholar H.Z. Jiao, S.F. Wang, Y.X. Yang, and X.M. Chen, Water recovery improvement by shearing of gravity-thickened tailings for cemented paste backfill, J. Clean.
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Two-stage water recovery and paste disposal has been successfully implemented at Khumani Iron Ore Mine in a unique installation, by any standard, Du Toit says. Combined use of primary and secondary thickeners in iron ore mining has rarely been implemented.
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Paste thickening optimizes tailings disposal and water recovery 8At Khumani iron ore mine, high-rate primary-slurry and secondarypaste thickeners combined for high-percentage process-water reuse Ozone reduces concentrate stream color...12 Reverse-osmosis stream reduced to less than 30 true-color units Surge of non-dispersible debris impacts
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The primary methods used to extract minerals from the ground are: Underground mining. Surface (open pit) mining. Placer mining. The location and shape of the deposit, strength of the rock, ore grade, mining costs, and current market price of the commodity are some of the determining factors for selecting which mining method to use.
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"The two-stage water recovery and paste disposal system that has been successfully implemented at Khumani iron ore mine is a unique installation, by any standard," Du Toit said. "The combined use of primary and secondary thickeners in iron ore mining has rarely been implemented.
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Inside Mining editor, Gerhard Hope, is dwarfed by a 860E haul truck at the R1 billion Life-Of-Mine Heavy Mining Equipment workshop at Kumba Iron Ore's Sishen mine in Kathu in the ...
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Khumani Iron Ore Mine paste disposal and water recovery system T. D. Toit, M. Crozier Business, Environmental Science 2012 Traditional iron ore beneficiation plants using washing screening and jigging processes require large volumes of process water. Therefore, when a suitable large iron ore deposit is found in a. 5 Highly Influential PDF
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Paste thickening optimizes tailings disposal and water recovery 8 At Khumani iron ore mine, high-rate primary-slurry and secondary paste thickeners combined for high-percentage process-water reuse. Ozone reduces concentrate stream color...12 Reverse-osmosis stream reduced to less than 30 true-color units. Surge of non-dispersible debris impacts
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The term "paste" as used in this discussion applies to the full range of non-settling tailings that exhibit a yield stress such as "thickened tailings" and "mine paste backfill." Tailings pond life, improved water recovery, tailings dam safety, and tailings reclamation/re-vegetation are some of the major drivers to investigate the use of paste.
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Recovery of the water at the paste thickeners eliminates or greatly reduces the existence of any free standing water in the tailings deposition unlike within slurry ponds where free water pools on the surface and large volumes are lost to evaporation and allows fluidization during slurry pond dam failures.
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Khumani Iron Ore Mine paste disposal. Khumani Iron Ore Mine paste disposal and water recovery system The use of conventional large-diameter 90 m traction thickening technology was a proven process at the nearby Assmang Beeshoek iron ore operations some 60 km away However, concerns over high evaporations rates in the area, lack of suitable sites ...
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The average particle size is 75.59 μ m and the median particle size is 34.95 μ m. The specific surface area is 1685 cm 2 /cm 3. In addition, the content of >100 μ m and ≤20 μ m is 20% and 37.20%, respectively. The PSD curve is shown in Figure 1.
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on the farm Parson and the first train was loaded with iron ore at Khumani in May 2008. The overall mining area over which Khumani operates is approximately 9000ha. Today, the mine is a fully operational opencast mining operation, with an approved capacity of producing 16 million tons of iron ore per annum. The iron ore is mined from a series ...
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Jan 1, 2022The mining industry faces a major problem in regions with water scarcity and has had to implement new strategies to preserve its environmental and economic sustainability. ... Du Toit, T.; Crozier, M. Khumani Iron Ore Mine paste disposal and water recovery system.; 2012; pp. 243-258. Google Scholar ... Improved water recovery: A review of ...
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The mine still has unlawful water uses which have potential to pollute the water resources. Non-compliance to WUL conditions. ... Sishen Iron Ore Scarlet Sun Mine De Beer Micro Diamonds Mr OA Witkoei HE Louw Mrs FE Mali BM Marman Crown Resources ... Khumani Iron Ore United Manganese Kalahari Glencore: Tweefontein Complex BHP: Khuthale Colliery ...
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Read Gestión del Recurso Hídrico by Sociedad Nacional de Minería, Petróleo y Energía on and browse thousands of other publications on our pla...
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"Khumani's secondary paste thickening process delivers substantial benefits," said Lake. "Not only does it recover water, which can be reused in the plant, but it also leaves less water in the deposit site. In a paste dis- posal, because of the nature of paste tailings, the particles within it are well distributed.
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The Assmang Khumani iron ore surface mine will be significantly improving its capability to enhance operator competency with the acquisition of two CYBERMINE 4 mining simulators. Khumani mine has also purchased interchangeable cabs for Komatsus 860E AC haul truck and PC5500 hydraulic face shovel.
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See also. An experimental study on the flocculating settling of unclassified tailings An experimental study on the flocculating settling of unclassified tailings. Optimization of the Rössing countercurrent decantation circuit for high-calc ore Optimization of the Rössing countercurrent decantation circuit for high-calc ore. Khumani Iron Ore Mine paste disposal and water recovery system ...
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Conventional tailings disposal has some important disadvantages such as poor water recovery, high volume storage requirements, the need for containment structures like basins or dams (which can present stability and safety issues), and lower rehabilitation potential. ... Khumani Iron Ore Mine paste disposal and water recovery system. T. D. Toit ...
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T oit and M. Crozier, "Khumani iron ore mine pa ste disposal and water recovery system," Journal of the Southern African Institute of Mining and Metallurg y, vol., no., pp.
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Khumani Iron Ore Mine paste disposal and water recovery system particles toward the centre cone of the thickener to prevent mounds of coarse particles becoming isolated in one area of the thickener. This reduces slumping and torque spikes. A flat shelf has been avoided in order to prevent solids buildup on the shelf.
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Since 2008, Khumani has produced about 16 million tons of product annually. After primary and secondary crushing, iron-ore processing involves wet washing and screening, jigging, and fines recovery using de-grit cyclones. It all requires water in large volumes and the mine's success is dependent on water recovery.
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(Fuente: Sloote, S., et al. Paste Thickening Iron Ore Tailings. VI Brasilian Symposium on Iron Ore) Si se atiende a las características de la pulpa obtenida en el hundido producida por estos equipos existen dos principales: el contenido en sólidos y la tensión de fluencia del lodo espesado.
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Paste thickening optimizes tailings disposal and water ... 01/05/2015· Volumes up to 450 tons per hour can be buffered in each of the secondary paste thickeners for short periods of time. The paste thickeners recover at least 75 80 percent of the water by volume from the primary thickeners, increasing total water reclamation in
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To further clarify the dewatering performance and torque evolution during the tailings thickening process, a self-made rake was connected to a rheometer to monitor the shear stress and torque. The dewatering performance of the total tailings was greatly improved to a solid mass fraction of 75.33% in 240 min. The dewatering process could be divided into three stages: the rapid torque growth ...
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A method of managing water is provided, in which the water is discharged from an aggregate plant, and therefore contains a large number of fines. The water is first passed through a mesh screen to remove large particles and then collected in a sump. From the sump the water is pumped to a centrifugal cyclone, where some of the fines are separated from the water.
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This case study provides an overview of the Khumani paste disposal facility (PDF) located in the Northern Cape of South Africa. The plant uses a central ring main water reticulation circuit combined with a two stage thickening system to maximise water recovery.
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243 Khumani Iron Ore Mine paste disposal and water recovery system T. Du Toit, Assmang Ltd, South Africa; M. Crozier, WesTech Process Equipment Africa Pty Ltd, South Africa Mine backfill 261 Defining and quantifying sustainable backfill D. Green, Admixture Systems, BASF, USA; Z. Martic, MEYCO Global Underground Construction, Switzerland; B. Knight,
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Khumani Iron Ore Mine paste disposal and water recovery system The use of conventional large-diameter (90 m) traction thickening technology was a proven process at the nearby Assmang Beeshoek iron ore operations some 60 km away. However, concerns over high evaporations rates in the area, lack of suitable sites for a conventional tailings ...
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The paper presents an overview of the Khumani operations focusing on the water management and paste disposal facility, which during the initial production of 8.4 Mt/a (phase 1a) minimizes raw water consumption to levels below 0.09 m 3 /t of product. Integrated water management design considerations at Khumani mine
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Maximizing the recovery of fine iron ore using magnetic ... Performance improvements provided by Mintek: BDH Knights, JC Satyro, RA Dias, AC de Ara View. Khumani Iron Ore Mine paste disposal and water recovery system (1) 2012 3 Khumani Iron Ore Mine paste disposal and water recovery system: T du Toit, M Crozier View. ...
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khumani iron ore mine : 14. kolomela mine : 15. kumba iron ore (sishen) 16. kumba sishen hrd centre : 17. metskill pty ltd : 18. modikwa mining personnel services pty l td : 19. moyatau community development : 20. nokaneng environmental management consulting : 21. northam platinum ltd : 22. palabora copper (pty) ltd : 23. powergate training pty ...
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Paste thickening optimizes tailings disposal and water recovery. May 01, 2015· To maximize water reuse, the Khumani plant contracted with WesTech Engineering, Inc. to design and implement a two stage tailings thickening process. The first stage consists of two primary high rate traction slurry thickeners, each 295 feet in diameter, situated at ...
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Aug 10, 2021This case study provides an overview of the Khumani Paste Disposal Facility (PDF) located in the Northern Cape of South Africa. The plant uses a central ring main water reticulation circuit combined with a two stage thickening system to maximize water recovery.
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The mining industry faces a major problem in regions with water scarcity and has had to implement new strategies to preserve its environmental and economic sustainability. ... Du Toit, T.; Crozier, M. Khumani Iron Ore Mine paste disposal and water recovery system.; 2012; pp. 243-258. Google Scholar ... Improved water recovery: A review of ...
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Variations of the water and the product pulse during operation of the MDS (Mintek, 2008) Samples were collected by lifting the top sample ring sliding the sample tray in between the rings. ... Du Toit, T. and Crozier, M. 2012. Khumani iron ore mines paste disposal and water recovery system. Journal of the Southern African Institute of Mining ...
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Khumani Iron Ore Mine paste disposal and water recovery system ... The plant uses a central ring main water reticulation circuit combined with a two-stage thickening system to maximize water ...
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