Mining Engineers' Handbook, Volume 2Robert Peele, John Adams Church J. Wiley & sons, Incorporated, 1941 |
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Hasil 1-3 dari 82
Halaman 26-3
... steel grades is 121 000 lb per sq in , and with factor of safety of 3.5 , the working ten- sion is 34 600 lb per sq ... steel Diam , in Special steel Smooth - coil cables Cast steel Plow steel Wt , lb per ft Breaking Working Breaking ...
... steel grades is 121 000 lb per sq in , and with factor of safety of 3.5 , the working ten- sion is 34 600 lb per sq ... steel Diam , in Special steel Smooth - coil cables Cast steel Plow steel Wt , lb per ft Breaking Working Breaking ...
Halaman 8
... steel fittings range from 50 000 to 850 000 ton ; steel consumption , 0.005-0.05 lb per ton crushed , aver near 0.02 lb per ton . Attendance . Special attendance , such as is required for primary crushers , is not needed . In general ...
... steel fittings range from 50 000 to 850 000 ton ; steel consumption , 0.005-0.05 lb per ton crushed , aver near 0.02 lb per ton . Attendance . Special attendance , such as is required for primary crushers , is not needed . In general ...
Halaman 40-7
... steel ...... Buildings : Brick . Wood or wood frame .. Cables and feeders ..... Coal and ash machinery . Compressors , air .. Condensers .. Cranes ... Economizers and air preheaters . Electric generators .. Electric motors ... Engines ...
... steel ...... Buildings : Brick . Wood or wood frame .. Cables and feeders ..... Coal and ash machinery . Compressors , air .. Condensers .. Cranes ... Economizers and air preheaters . Electric generators .. Electric motors ... Engines ...
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