The information from the metallurgical characterization program was also used for the calibration of a Comminution Economic Evaluation Tool (CEET) Model. This tool was used in conjunction with the grindability values and the mine block model to forecast the grinding circuit capability and to identify potential bottlenecks. Through this characterization program the following steps were achieved:
Another key characteristic of the steam cycle is that production (or kilowatt-hours) is governed by the steam rate or mass flow through the cycle processes. Steam or energy that is bled out of the processes via leaking valves is not being put to beneficial use and thus may be proportionately reducing the amount of electricity or revenue being produced.
Note: The following troubleshooting procedures are intended to familiarize you with some basic types of systems. For detailed instructions on particular zone valves, refer to the manufacturer’s spec sheets.
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[G01L] MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G) [4]
[H04J] MULTIPLEX COMMUNICATION (peculiar to transmission of digital information H04L 5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N 7/08; in exchanges H04Q 11/00)
In more recent years the Republic of Suriname, through a geological reconnaissance program lead jointly by the Geological and Mining Service of Suriname (Geologisch Mijnbouwkundige Dienst van Suriname, abbreviated to GMD) and the University of Amsterdam, conducted large-scale mapping over vast portions of the country, including the Saramacca area. Various photogeological studies, field studies, and mapping programs, focussing primarily on gold and bauxite, were performed until the 1970s by the GMD. No specific study appears to have been executed on the Saramacca gold project area during that time.
Interpolation is performed using ID3, with a maximum number of composites varying by pit from 12 to 20 in order to control smoothing. For each pass, the minimum number of composite is decreased to increase the number of blocks estimated. A maximum of two or three composites, from the same hole, is set to limit grade smearing. The parameters used to estimate gold grade in the block models are shown in Table 14-7.
The cuttings are going through a cyclone, a rotary splitter, and two plastic bags placed at the end for sampling. Samples are taken every 2 m and generally consist of two 5 kg bags: one bag for assaying and the other one for logging the samples and as a field duplicate and/or for re-assay. A small amount of the logging sample bag is placed on the logging table where the geologist describes the material (alteration, lithology, presence of quartz, pyrite). Pictures of cuttings are taken before placing the material in chip trays. If no picture of the cutting is taken, a picture of the chip tray is taken instead. For each interval, the sample bag for assaying is sent to the laboratory for analysis, the other bag being kept at the core shack until results are obtained and no further sampling is required.
Overall, the combination of additional drilling, updated models, and updated economics results in 73% more Indicated ounces, while inferred ounces dropped by 47%.
The Mineral Reserve at J Zone is estimated at 12.1 Mt grading 0.84 g/t Au to yield 0.33 Moz, at a stripping ratio of 4.44:1.
Abstract: An apparatus for dissolving a fragrance carrier such as a shower tablet, including a fragrance carrier holder and a mount bracket supporting a water-holding reservoir and configured so that water in the reservoir or from the reservoir can contact and dissolve the fragrance carrier on the holder. The reservoir can be provided with a valve to at least partially control flow of water from the reservoir. The valve is preferably a flapper valve, a rotatable flow regulator valve, a poppet valve or a duckbill valve. A method of dissolving the fragrance carrier is also provided.
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