Simplified Flow Diagram of Fine Coal Dense Medium Plant
R1500,00
Description
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Spontaneous Combustion of Coal and Coal-shales
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Laboratory testing of samples from South African collieries using two Wits self-heating indices alongside proximate and ultimate analysis, for ventilation and safety engineers assessing burning shale risk.
What this report foundTesting of 28 coal and coal-shale samples showed the coals to be more liable to spontaneous combustion than the shales, though reactive coal-shales still...
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Testing of 28 coal and coal-shale samples showed the coals to be more liable to spontaneous combustion than the shales, though reactive coal-shales still self-heat and pyrite in them speeds the process. Higher carbon, moisture, hydrogen, volatile matter and nitrogen with lower ash all raised proneness to self-heating, so proximate and ultimate analysis can serve as a screening tool.
Causes, Symptoms, Prevention and Alleviation of Soil Compaction on Mined Land
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A review of South African opencast coal experience, written for environmental officers and mine management who must correct legacy compaction and plan operations that avoid creating more.
What this report foundCompaction on rehabilitated opencast land restricts effective rooting depth so severely that only a small proportion of arable and grazing areas reach their...
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Compaction on rehabilitated opencast land restricts effective rooting depth so severely that only a small proportion of arable and grazing areas reach their stated capability. The review sets out the causes and symptoms, argues that symptoms are usually treated without addressing the cause, and recommends site specific, resource based management, mechanisation choices weighed against compaction, and land capability standards aligned with international codes.
Real-time Plant Efficiency Measurement
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Assessment of the measurement and control equipment available to coal preparation plants, with recommendations for plant metallurgists on which instruments to add first.
What this report foundNo single method gives a continuous, real time report on how a coal preparation plant is performing.
R1500,00
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No single method gives a continuous, real time report on how a coal preparation plant is performing. Mass meters converted to yield values, on-line ash and moisture monitors, load cell chutes and automatic medium density control together supply most of what is needed. Measuring discard and slimes tonnages, particularly slimes disposal, remains the weakest point in plant accounting.