Mining Engineers' Handbook, Volume 2Robert Peele, John Adams Church J. Wiley & sons, Incorporated, 1941 |
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Halaman 25-22
... limited are likely to contain at least 25 to 100 % more ore than can be actually assured . Example I. ( Question 1 ) A deposit was limited at one end by a property line across which the orebody passed to an adjoining mine , while the ...
... limited are likely to contain at least 25 to 100 % more ore than can be actually assured . Example I. ( Question 1 ) A deposit was limited at one end by a property line across which the orebody passed to an adjoining mine , while the ...
Halaman 40-10
... limited to low press and low capac services ( less than 250 lb per sq in and 250 boiler hp ) ; are low in first cost , but can not be operated at high ratings with sustained effic . WATER- TUBE BOILERS ( Fig 10 ) are header or drum ...
... limited to low press and low capac services ( less than 250 lb per sq in and 250 boiler hp ) ; are low in first cost , but can not be operated at high ratings with sustained effic . WATER- TUBE BOILERS ( Fig 10 ) are header or drum ...
Halaman 40-16
... limited to 2 or 3 stages , due to friction losses . In PRESSURE STAGING , the construction is cellular , with a single row of moving buckets in each cell and nozzles in the separating diaphragms . With the reac- tion principle ...
... limited to 2 or 3 stages , due to friction losses . In PRESSURE STAGING , the construction is cellular , with a single row of moving buckets in each cell and nozzles in the separating diaphragms . With the reac- tion principle ...
Isi
AND SORTING OF ORES | 15 |
ELECTRIC POWER | 16-1 |
sion Wiring | 19-1 |
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adjustment Aerial Tramway anthracite approx assay aver borax buckets Bur Mines capac carriers cars charge chute claim coal mines compressor concentrate conveyer copper cost crusher crushing cu ft cupel cyanide deflection diam discharge distance drill dust elev engineer explosions feed filter fire firedamp gold grade hoisting horiz intercooler labor lamp less litharge loaders loading lode long ton machine material mechanical metal method mill mineral motor operation pipe plant plate plumb-bob pump pyrite rock safety lamps sample screen shaft sheave short ton side silver sizes Sodium carbonate solution speed station steel stopes surface survey Table tape telescope temp tension tests timber tion tons Total towers track cable traction rope tramway Trans transit traverse underground usually valve vein vertical wire zinc