Specifically designed couplers, drill bits and bit stabilizers have been used and will be discussed.An extensive blast monitoring program, far beyond the requirements of the contract, was undertaken and all vibration data is analyzed. Low frequency vibrations were monitored with three Instantel DS-677...
Bucyrus recently introduced a new Rotary Bit Change Carousel and Forked Pipe Wrench for its 49 Series Rotary Blasthole Drills. Fully automating the drill bit and pipe change process will eliminate the safety risks and lost production tim... - 《Coal Age》 被引量: 0发表: 2009年 Blasthole dri...
When he isn’t putting 100+ hours into the latest Atlus release, he’s playing board games with his partner or blasting a mid-2000s punk record. Music, film, writing, and games are his biggest passions, and he hopes to one day unite all of those in some way or another. Next Up :...
865,935. Blasting. SANDVIKENS JERNVERKS AB. Oct. 2, 1959 [Oct. 3, 1958], No. 33500/59. Class 68(1). [Also in Group XXII] A method of drilling interpenetrating holes involves securing in the first of the holes drilled a guide member 11 having on the outer surface one or more ...
Multi-planar detection optimization algorithm for the interval charging structure of large-diameter long hole blasting design based on rock fragmentation aspects. Eng. Optim. 2018, 50, 2177–2191. [CrossRef] 65. Peng, H.; Nie, W.; Cai, P.; Liu, Q.; Liu, Z.Q. Development of a novel...