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Pennsylvania glass sand streamlines mining methods
Latest hydraulic dredging techniques were introduced at Newport, NJ plant to provide increased efficiency in mining, handling and storing silica; 12 in. hydraulic dredge can transport material over extended pipe line lengths as size of pit increases; dredge, capable of operating to depth of 40 ft can easily mine material from average 35-ft below-water-level depth of pits; cutterhead can dig into clay and sand agglomerate; capable of pumping material through maximum pipe line length of 4000 ft, dredge has total of 910 connected hp. (See also Rock Products v 67 n 11 Nov 1964 p 75, 110)
Pennsylvania glass sand streamlines mining methods
Latest hydraulic dredging techniques were introduced at Newport, NJ plant to provide increased efficiency in mining, handling and storing silica; 12 in. hydraulic dredge can transport material over extended pipe line lengths as size of pit increases; dredge, capable of operating to depth of 40 ft can easily mine material from average 35-ft below-water-level depth of pits; cutterhead can dig into clay and sand agglomerate; capable of pumping material through maximum pipe line length of 4000 ft, dredge has total of 910 connected hp. (See also Rock Products v 67 n 11 Nov 1964 p 75, 110)
Pennsylvania glass sand streamlines mining methods
Excavating Engr
Excavating Engineer ; 58
1964
3 pages
Aufsatz (Zeitschrift)
Englisch
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Pennsylvania glass sand streamlines mining methods
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