surface coal mine opencast drill and blast

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  • H BLASTING IN SURFACE EXCAVATION

    Appropriate blast design is important in order to lessen the production of over size Secondary blasting can be done by pop shooting (blockholing) and plaster shooting (mudcapping) Shaped charges are sometime used in secondary blasting, but this is much more expensive Cast Blasting When overburden is removed from a coal or mineral deposit it...

  • Blasthole Drilling

    Surface Mining, US Department of the Interior, located in Denver, Colorado The module is an example of the technical assistance the Federal government furnishes States to assist them in meeting the requirements of the Surface Mining Control and Reclamation Act of 1977, upon which their State surface coal-mine regulating programs are based...

  • Blasting in Mines

    ROCK BLASTING FOR MINING , Hence drilling and blasting are considered to be the first phase of the production cycle in most of the , For surface explorations, in opencast mining opera tions...

  • Arno La Grange

    Geita Gold Mine (Blast Hole and Grade Control Drilling) 6 x DML Blast hole drill rig, 2 x D65 Blast Hole drill rig, 1 x EDM 2000 Grade Control Rig Overview: Started working as a Production Supervisor promoted to Production Drill and Blast Manager within less than 1 year...

  • Rotary blasthole drill rigs

    Our 1190E electric-powered blasthole drill is designed for coal and metal mining applications It drills holes with a diameter of 229 - 349 millimeters (9 - 13 ¾ inches) with a single-pass depth of up to 198 meters (65 feet) or a multi-pass depth of up to 85 meters (279 feet)...

  • Blasting in Mines

    Explosives Blasting in Mines: The only way to get coal or any ore or mineral out of the ground is to dig it out Digging means drilling and blasting Therefore, every mines, whether underground or opencast (surface) mines, drilling blasting activities are one of most important...

  • Excavation, Drilling and Blasting Solutions

    Excavation, Drilling and Blasting Solutions At Divestic Mining Services we provide three key engineered and innovative steps of mining solutions for all opencast mining operations Our personnel is efficiently trained and competent to ensure maximum production, safety and efficiency...

  • Drilling and blasting

    Drilling and blasting is the controlled use of explosives and other methods such as gas pressure blasting pyrotechnics, to break rock for excavation It is practiced most often in mining, quarrying and civil engineering such as dam, tunnel or road construction The result of rock blasting is ,...

  • Opencast coalminingatKrielColliery

    ground mine to produce 4 million tons of coal per annum and an opencast mine to produce 4,5 million tons ofcoal per annum, with aresultant increase in , surface observations haveprovided adetailed knowledge , drilling and blasting operations Back-up equipment...

  • open pit mine blasting

    Nov 29, 2010· blasting in northern bc...

  • Drilling and Blasting Services

    Civil blasting, Surface blasting and Quarry blasting , To become the preferred Drilling and Blasting Company in Africa, conducting our business in an ethical and professional manner, building sustainable relationships with our valued clients along the way , are utilized by development, mining, and penetrating and impacting organizations...