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Wysłany: Wto 11:30, 09 Lis 2010
Temat postu: ugg boots sale Column Cartridges lateral caving mi
Column Cartridges lateral caving mining method in the application of tin copper pit
If the Secretary in the room, proved to be safe. There is no proper air-blast safety distance is calculated, as much amount of each drug, based on experience, blasting will not cause damage. 2.6 Effect of application of lateral underground large diameter deep hole blasting test success, to fill the gaps in underground mine blasting technology, pioneering in the country. March 24, 1989 start of the lateral blast was successfully achieved 9l orebody lateral caving purposes. Initiation of new and reliable equipment, explosives, and stable performance. The amount of time can be controlled caving in between 0.5 to 2 million t. Surface after blasting to a new level and tidy, no backlash phenomenon, that shock measures are successful. Though the large explosion bigger than the VCR method,
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, but still within the acceptable range. Match the explosive suitable and lithology, pore network parameters and reasonable method blasting explosives consumption slightly lower than the VCR. 2 of the original rock with explosives compared to the power conversion unit consumption by weight can reduce the 3O, cost can be reduced 16N27, and achieved satisfactory results and economic benefits of technology. That the underground large diameter hole is a cheap side caving mining method for ore. 3, the tasks and prospects of the future today Zhan task 0.1 (1) the use of blasting mechanism to establish the blasting station management model, bursting with computer optimized design direction for future work. 0) choose more suitable for the nature of the explosives, ore, labor intensity lame lightly armed drugs (such as the development can flip the granular ANFO), by improving the distribution of explosives in the hole to improve the crushing quality and reduce the consumption of explosives. (3) Development of high reliability,
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, high accuracy, multi-stage non-electric millisecond detonator, to further improve the low-energy detonating cord booster feasibility. (4) data analysis based on the best non-electric initiation systems also exist on-line 3 ‰ initiation of misfire, the worst of up to l0. This will cause the hole after ignition misfire can not handle the situation. To this end, develop a new, safe, high-precision cylindrical electric medicine from the supplement Zhaoyou Sen color 1} i6 chest caving mining method used in the copper pit tin 1J. 9 critical systems, the use of portable devices and capacitive line before and after initiation of the testing equipment that allows initiation network capacity, to achieve the purpose of a large number of caving. 3.2 uncle morning to the prospect of issuing caving caving the side safe, efficient, low cost, has become an overseas qualified underground metal mines to accelerate the popularization and application of advanced mining methods more commonly used VCR Farah is currently cutting groove , http lot of blasting to the caving method. But with the successful drilling application patio, you can end the stope l ~ 2 条 first hit the courtyard, directly lateral caving by blasting, thus greatly reducing the recovery period, and further increase economic efficiency. Using the lateral hole caving to the Dachang tin copper is extremely huge economic benefits, according to the actual data available, only an explosive (dynamite rock, compared with 2) pit copper tin 0l, 92 The total ore reserves of the two No. 45000000 Heavy t of ore estimated to count, which can be used 7O% of large diameter deep hole mining, mining for ore and lateral collapse of share s / 4, the use of a 1-350/50 zA Emulsion ANFO and the economic benefits will save 6.5 million yuan or so, look at the total cost will save tens of millions of mining,
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, the outlook is clear. THEAPPLICATIONOFSIDEASTBYCOLUMNCHARGEINTONGKENGTINMINEZkaoYousen (ChangshaInstituteofMiningResearch) AB $ TRACTTheretreatslicingblastofVCRwasreplacedbysideblastingwithmorethan10thousandtonsofblastedoreeachtime. AndtheMastpatteninVCRhaeenimproved. Anintroductiontothecausesofsideblastinghaeendescribed. andthedesigncriterionforsideblastingandtheresultsofpracticalapplicationaregiven. Meanwhile, theexistingproblemsandfuturaltrendarepointedt. '. . KEYWORDSVCRminingmethod,
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, Sideblasting,
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, Verticalslicing
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