- Industry: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
一種方法採石場爆破的炸藥放置在行的垂直孔。裝載比例從約 3 st 每磅 (6 t 千克) 的爆炸到約 7 st (14 t 公斤) 在有利條件下岩石的變化。甲板裝載通常被雇用,和強大的膠質炸藥載入在孔的底部。
Industry:Mining
回收鐵和其他金屬的廢物材料的一種方法生產的鋅和鉛礦石的冶煉。進程從克虜伯瑞方法不同,這是回收熔金屬氧化物表單中的揮發過程。金屬蒸氣氧化過量空氣,他們隨後篩選從中的煙道氣中帶走。
Industry:Mining