Mining Engineers' Handbook, Volume 1Robert Peele, John Adams Church J. Wiley & sons, Incorporated, 1941 |
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Halaman 23-42
... EXPLOSIONS The number of deaths annually from coal mine explosions in the US rose steadily until 1907 , when 956 men were killed , including 361 in the disaster at Monongah , West Va , the worst that has occurred in this country . The ...
... EXPLOSIONS The number of deaths annually from coal mine explosions in the US rose steadily until 1907 , when 956 men were killed , including 361 in the disaster at Monongah , West Va , the worst that has occurred in this country . The ...
Halaman 23-43
... explosions . Firedamp was formerly believed to be the only cause of explosions , but bituminous and lignitic dust are now known to be more important means of propagation . CH , rarely exists in explosive proportions throughout large ...
... explosions . Firedamp was formerly believed to be the only cause of explosions , but bituminous and lignitic dust are now known to be more important means of propagation . CH , rarely exists in explosive proportions throughout large ...
Halaman 23-71
... Explosions Trans A IME , 60. Explosive Mine Gases and Dusts . Chamberlin . US Geol Surv , Bull 383 61. American Coal - dust Investigations . Rice . Trans Instn Min Engs ( England ) , Vol 49 ; Trans A IME ( 1914 ) . Review of . Rice ...
... Explosions Trans A IME , 60. Explosive Mine Gases and Dusts . Chamberlin . US Geol Surv , Bull 383 61. American Coal - dust Investigations . Rice . Trans Instn Min Engs ( England ) , Vol 49 ; Trans A IME ( 1914 ) . Review of . Rice ...
Isi
COMPRESSED AIR PRACTICE | 15-2 |
Appli | 15-15 |
Hydraulic Compressors | 15-22 |
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adjustment Aerial Tramway anthracite approx assay aver borax buckets Bur Mines capac carriers cars charge chute claim coal mines compressed 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 hoisting horiz intercooler labor lamp less litharge loaders loading lode long ton machine 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 vein vertical wire zinc