Mining Engineers' Handbook, Volume 1Robert Peele, John Adams Church J. Wiley & sons, Incorporated, 1941 |
Dari dalam buku
Hasil 1-3 dari 88
Halaman 4-17
... dynamite dry , especially the ammonia dynamites , as they contain hygroscopic salts , and in humid climates may eventually attract enough moisture to impair their sensitiveness and strength . When dynamite is shipped in winter at very ...
... dynamite dry , especially the ammonia dynamites , as they contain hygroscopic salts , and in humid climates may eventually attract enough moisture to impair their sensitiveness and strength . When dynamite is shipped in winter at very ...
Halaman 4-18
... dynamite . If made up above ground , they should be taken into mine at a separate time and in separate car from other explosives . In opening dynamite cases , use no metal tools other than those made of non - sparking materials ; wooden ...
... dynamite . If made up above ground , they should be taken into mine at a separate time and in separate car from other explosives . In opening dynamite cases , use no metal tools other than those made of non - sparking materials ; wooden ...
Halaman 4-19
... dynamite on heated stoves , rocks , sand , bricks , or metal , nor in an oven ; don't thaw dynamite in front of , near , or over , a steam boiler , forge , or fire of any kind . Don't heat thawing - house with pipes containing steam ...
... dynamite on heated stoves , rocks , sand , bricks , or metal , nor in an oven ; don't thaw dynamite in front of , near , or over , a steam boiler , forge , or fire of any kind . Don't heat thawing - house with pipes containing steam ...
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