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The Karowe diamond mine (formerly the AK6 Project), a producer of high-quality rough diamonds, is located in the Orapa/Letlhakane Kimberlite district of north-central Botswana. The mine is being developed with an …
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"This paper summarizes the Wren (Clarifier and Accelerated Thickener) deep bed thickener operation at the EKATITM Diamond Mine in Canada's Northwest Territories. …
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In these cases, simple practical steps such as firstly improving the flocculant reagent make-up and dosing control, and secondly focusing on thickener discharge control, …
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and chrome-diopside. Mining difficulties may be experienced in the hypabyssal facies due to the irregular shapes of the intrusion. Mining in the Kimberley mines is now into the root zones of the pipes. Model of a Kimberlite Pipe The presence and degree of preservation of these zones depends upon the level of
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A strategy for improving water recovery in kimberlitic diamond mines most cases the dominant clays belong to the 2:1 smectite or swelling group of clays and the settling or solid/liquid
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In these cases, simple practical steps such as firstly improving the flocculant reagent make-up and dosing control, and secondly focusing on thickener discharge control, are the only …
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PDF | On Sep 1, 2017, Barbara H. Scott Smith published Kimberlites - from Mantle to Mine | Find, read and cite all the research you need on ResearchGate
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In this paper, 34 kimberlite mines are reviewed with regard to their geology, mantle xenolith, xenocryst and. diamond characteristics and production statistics. These mines vary greatly in size ...
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Figure 1. Open-pit diamond mines in kimberlite rock. Mining operations remove as much kimberlite as possible and leave deep pits that outline the shape of a "kimberlite pipe." A: The Cullinan mine started as an …
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reagent make-up and dosing control, and secondly focusing on thickener discharge control, are the only requirements for enhancing water recovery at the dewatering circuit. At other mine sites however, ... On the other hand, kimberlite mines that draw their raw …
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Operating strategies are discussed, with emphasis on process instrumentation and control and operating challenges.INTRODUCTIONThe EKATITM diamond mine, operated by BHP Diamonds, Inc., is located in the Northwest Territories near Lac De Gras, approximately 300 km NNE of Yellowknife, NT. 9000 dry metric tonnes of diamond-bearing kimberlite ore ...
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Diamond mining from kimberlite ore has some challenges related to sustainability: (1) low recovery of diamond, (2) high waste management cost, and (3) high process water consumption.
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2. Marine mining. Marine diamond mines are divided into three types: ancient beach mines, existing beach mines, and offshore mines, and offshore mine deposits can be mined at least 200m deep. The earliest form of marine mining was coastal diving, in which swimmers collected diamond-containing gravel from the bottom of shallow seas.
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Two Paste thickener plants are currently installed in two different diamond mining operations in Southern Africa. The first installation includes five 15 m diameter Paste thickeners at the De …
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recovered thickener overflow clarity is generally poor (Figure 3). Under this condition it is normally necessary to dose a cationic polymer coagulant before flocculant addition to achieve solid/liquid separation and good overflow clarity. As a result, operating costs are high. On the other hand, kimberlite mines that draw their raw
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Washed Run of Mine (ROM) kimberlite (-80 mm), collected in bulk bags, from Maschinen BE550 desanding equipment at the drill site, will be supplied to the front-end of the plant. Initial scrubbing and screening sends coarse -80+25 mm kimberlite to the jaw crusher, and removes all -0.85 mm fines using a slotted screen.
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JXSC factory provided a full set 100tph kimberlite clay diamond washing plant for Brazil project. Below are more details about this project. 1. Raw ore information: Diamond ore contain much clay, The type of customer's diamond mine: have 200 meters in radius and 20 meters deep of 240 million year old kimberlite which has been weathered to clay.
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This issue summarises current thinking on kimberlite petrology, geochemistry, and volcanology and outlines the outstanding questions on the genesis of kimberlites and associated diamond …
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Mine rehabilitation is a complex process and the potential of revegetating kimberlite tailings (after being co-dis posed) was evaluated in this study, with regard to physical and chemical properties.
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Figure 1. Open-pit diamond mines in kimberlite rock. Mining operations remove as much kimberlite as possible and leave deep pits that outline the shape of a "kimberlite pipe." A: The Cullinan mine started as an open-pit operation and transitioned to underground mining in 1946. Photo by DeAgostini/Getty Images. B: Active mining in one of the ...
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Of Mines, Calgary, Canada, 1999. ... A.J.C., Johnson, G., Vietti, A.J. "Case Study: Pumping high-density kimberlite tailings", Proceedings of the 14th International Conference on Slurry Handling and Pipeline ... "A description of the sedimentation process during dynamic thickener operation", 17th International Seminar on Paste and ...
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Strategy 2: Thickener Rake Make sure the tailings thickener has a rake with de-watering pickets
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is significant potential for mining at least one of the precursor kimberlite bodies attached to the main pipe. The current life of mine plan extends for 18 years, but the orebody remains open-ended at depth so there is potential for a much longer life. Petra is currently mining Block 4 at 630 m at a rate of 3.2 Mt/y at some 35 ct/100 t; expected
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