Mining Engineers' Handbook, Volume 1Robert Peele, John Adams Church J. Wiley & sons, Incorporated, 1941 |
Dari dalam buku
Hasil 1-3 dari 71
Halaman 8-17
... pump in firmer , and the sack - borer in softer , soils . Mammoth pump ( Fig 17 ) is essentially an air - lift pump ( Sec 15 ) . Inside the hollow stem of the trepan is a small pipe carrying compressed air to a point near bottom of the ...
... pump in firmer , and the sack - borer in softer , soils . Mammoth pump ( Fig 17 ) is essentially an air - lift pump ( Sec 15 ) . Inside the hollow stem of the trepan is a small pipe carrying compressed air to a point near bottom of the ...
Halaman 13-19
... Pump runners ' wages are thus saved . Automatically controlled pumps keep the water in the sump at a predetermined ... Pump Strainer Check - Valve Drain Valve Blow - off L2 L1 A - Sump Switch B - Priming Pump Starter LL B C - Priming ...
... Pump runners ' wages are thus saved . Automatically controlled pumps keep the water in the sump at a predetermined ... Pump Strainer Check - Valve Drain Valve Blow - off L2 L1 A - Sump Switch B - Priming Pump Starter LL B C - Priming ...
Halaman 13-21
... pump , or to top of the first stage of a multi - stage pump . The remaining stages need not be primed . When a centrifugal takes water from a dam ( Fig 27 ) , no priming is required . As the water rises behind the dam , it also rises in ...
... pump , or to top of the first stage of a multi - stage pump . The remaining stages need not be primed . When a centrifugal takes water from a dam ( Fig 27 ) , no priming is required . As the water rises behind the dam , it also rises in ...
Edisi yang lain - Lihat semua
Istilah dan frasa umum
angle Ariz aver bench black powder blasting block bottom broken caps cars caving chalcocite chalcopyrite churn drills chutes coal copper core cost per ft cribbed cross-sec crosscuts crystals Data deposits depth diam driven dynamite excavation explosives face filled stopes floor footwall ft deep ft high ft long ft wide fuse gelatin grizzly ground hammer drills hanging wall haulage level hematite hoisting holes horiz igneous rocks inclined intervals iron jackhammers labor lagging limestone loading magnetite manway Mesabi Range method minerals mining mucking orebody pillars pipe porphyry posts powder pump pyrite pyrrhotite quartz quartzite raises rock rods samples sand schist scraper sets shift shovel shrinkage stopes side sill sinking slice sludge soft sphalerite square-set steel stope stulls sub-level sulphide surface Table thick timber tons top-slicing Total tunnel usually veins ventilation waste width