The Gross Rosebel concession (RGM concession) (Geological Mining Department (GMD) No. 468/02) covers an area of 170.0 km² in the north central part of the Republic of Suriname at a latitude of 5° 25 North and a longitude of 55° 10 West. The RGM concession lies in the district of Brokopondo, between the Suriname River to the east and the Saramacca River to the west, approximately 80 km south of the capital city of Paramaribo (Figure 4-1).
(Signed & Sealed) Stéphane Rivard Stéphane Rivard, P.Eng., (OIQ #118538) Director Metallurgy IAMGOLD Corporation
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Blast design flexibility is limited to pit constraints including operating width, bench height, ore movement direction, etc. Most of these constraints make it necessary to identify post blast priorities of each shot and to design the shot accordingly. The achievement of optimal slope angles and stable inter-ramps, within the hard rock, requires a well implemented program of wall control blasting. The program requires a substantial reduction in the size of blasting blocks along the perimeter wall and the use of well-engineered blast designs that include free faces and suitable timing.
Trash screen undersize reports directly to a 53 m x 2.9 m high rate thickener. The slurry is thickened from 35% (w/w) solid to 50% (w/w) solid prior pumped to the leach tanks. The thickener overflow is flowed to the process water tank.
[B61G] COUPLINGS SPECIALLY ADAPTED FOR RAILWAY VEHICLES; DRAUGHT OR BUFFING APPLIANCES SPECIALLY ADAPTED FOR RAILWAY VEHICLES
Inventor(s): David Link (Costa Mesa, CA), Hongkun Liang (Zhongshan, , CN) Assignee(s): DOSKOCIL MANUFACTURING COMPANY, INC. (Arlington, TX) Law Firm: Global IP Counselors, LLP (9 non-local offices) Application No., Date, Speed: 15008063 on 01/27/2016 (930 days app to issue)
The production starts at a rate of 67.3 Mtpa in 2019 and steadily increases to a rate of 74.0 Mtpa from the RGM pits and 30 Mtpa from the Saramacca pit until 2021. The production rate stays relatively constant until 2026 from the RGM pits and is steady at 30 Mtpa from the Saramacca pit until 2029, then it starts to decline until the end of production in 2033. In the later years, production rates are reduced due to longer haulage distances, higher percentage of fresh rock, and the number of available working areas at the pit bottoms, which are not as productive as on the upper benches.
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All geological logging including lithology, alteration, mineralization, and down hole structure was performed by IAMGOLD-RGM geologists. Data entry was done directly in CoreLogger (Gems module) using Panasonic Toughbooks. CoreLogger includes some validation tools to prevent nested intervals, intervals deeper than the end of a hole and duplicate sample numbers.
Abstract: An apparatus including a memory operably coupled to a processor. The processor is configured to determine whether to use an intra smoothing filter for a rectangular prediction unit (PU) based on a lookup table (LUT) used for square PUs, wherein a width of the rectangular PU is not equal to a height of the rectangular PU.
In total, 10 Haulmax 3900 series trucks with a payload of 80 t will be used to for long haul route between Saramacca and the Rosebel processing plant. The estimated return cycle time is 94 min (1.57 hr). During the first three years of operation there is a lack of mined rock available to construct several waste dump buttresses. Due to this waste rock will be back hauled from the RGM pits. A maximum of ten trucks will be required to haul 2.24 Mtpa of ore at an average productivity of 43 to 49 tph, respectively for soft to hard rock.
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