drilling and blasting of iron ore in philippines

SELECTION OF THE MOST PROPER DRILLING AND

The results of this study show that the drilling pattern with a spacing of 5 m burden 4 m hole depth 10 m and hole diameter 15 cm is the most suitable one The stemming length and powder factor of the sug-gested pattern are 23 m and 26 gr/cm3 respectively Keywords Drilling and blasting pattern Sangan Iron Ore Mine AHP TOPSIS...

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FORGING THE FUTURE OF DRILLING IN THE MINING INDUSTRY JSW

Mar 15 2019 0183 32 Since the 1980s the JSW team has been specialising in production drilling and blasting exploration drilling and grade control successfully completing projects from large scale bulk iron ore and coal mining projects to mid-scale gold and lithium projects Drawing on this experience and its solutions-focused approach the company is solving...

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NQS Drilling Blasting

NQS is a rock-drilling and blasting company on the east coast We have equipment and experienced labor force necessary to fulfill any rock-removal challenge 4568 Frye Bridge Rd Clemmons NC 27012...

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Chapter 8 BLAST DESIGN

may represent as much as 80 percent of the total drilling and blasting costs mainly because of utilization of the lower cost explosive By contrast in the northeastern United States hard rock formations exist in a relatively wet environment where the explosives costs can be as much as 70 percent of the total drilling and blasting expense...

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Practical Aspects of Blast Hole Drilling

Nov 14 2018 0183 32 In these series article we will introduce the key knowledge on blast drilling according to our many years practical experience in Hardrock Drills Below is the lecture overview which will be introduced item by item today we will start from Modern systems for surface blasting drilling Lecture Overview Modern systems for surface blasting drilling Blast...

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CALCULATION OF DRILLING AND BLASTING PARAMETERS FOR

The preface to research the result of the study on physical and mechanical properties of iron ore is in Haji gak iron ore mine in order to design the optimal blasting parameters during mining...

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Mount Gibson on track to restart Koolan Island project

Drilling and blasting in the upper levels of the main pit commenced in early November and by the end of the month just under one million tonnes of waste material had been moved Mining is currently focused in the upper levels of the eastern end of the main pit with the first benches of high-grade iron ore expected to be accessed in February 2019...

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Iron Ore Drilling Machine Suppliers Manufacturer

Alibaba offers 66 Iron Ore Drilling Machine Suppliers and Iron Ore Drilling Machine Manufacturers Distributors Factories Compani There are 30 OEM 33 ODM 8 Self Patent Find high quality Iron Ore Drilling Machine Suppliers on Alibaba...

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PDF Design of controlled blasting pre

Table 3 Speciļ¬cations of test no 1 Test location Southern wall of mine No1 working bench 11 blasting pattern no 168 Materials Iron ore and waste rocks Spacing of joints and cracks Minimum 01 and maximum 15 m Location of nearby faults 8 m behind the pre-split row Status of underground water Average water height of 4 measured holes was...

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Blastability evaluation for rock mass fragmentation in

Jan 01 2015 0183 32 Extraction operation of iron ore in the studied mines are done by opencast mining Extraction stages include drilling operations blasting loading and hauling Hole drilling is done by rotary and percussion machinery in different diameter 165 200 and 251 mm...

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Drilling And Blasting In Open Cast Iron Ore Mines

Machine Requirement For Drilling In Iron Ore Wagon drilling machine iron ore open cast mining rock rc drilling has become standard practise in most mines across the worldirst developed in australia in the 1970s the drilling technique was originally conceived as a solution to drilling difficulties encountered when using open hole techniques in soft iron ore...

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Robe Valley Drilling and Blasting Project JSW Australia

ROBE VALLEY PROJECT CLIENT CPB Contractors PROJECT Robe Valley PROJECT START DATE 2019 PROJECT END DATE Current LOCATION Pilbara Western Australia COMMODITY...

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Underground Drilling and Blasting Training DVD

The Australian Centre for Geomechanics has developed this safety training DVD for underground metalliferous mine workers To purchase this product or find ou...

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Rock Drilling

Rotary drilling performed by roller-cone bits is employed for drilling holes of large diameters which are needed for oil and gas drilling or surface drilling of large holes eg in iron-ore quarri An example of roller-cone bits is shown in Figure 1 c The roller cones rotate together with the drill rod and cut the rock without percussion...

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Ep 19 Drilling Blasting in Mines Using IoT AI with

How well do mines know the rock they are drilling and blasting The Internet of Things is changing the mining landscape and automation continuously to integrate into systems across all sectors We sat down with a company who has integrated autonomous solutions IOT Internet Of Things cloud data technology and digital high resolution imaging into a system that accurately provides rock...

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Drilling And Blasting Of Iron Ore

Drilling And Blasting Of Iron Ore Roughly 98 of iron ore on the global market is used in iron and steel productionMining and processingCommon methods of extracting the iron ore consist of blasting drilling or general excavating Most iron ore is produced from open-pit minAfter the iron ore is out of the ground it may be shipped to the iron and steel manufacturing...

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Mine Services

Our Mine Site Services Division has provided safe efficient and innovative grade control drilling blast hole drilling and blasting services to the Australian mining industry since 1998 Our fleet includes custom-built grade control rigs modified blasting rigs and all accompanying support vehicles and equipment We can provide the latest drill rigs with proven technology to...

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Drilling and Blasting Technical Aspects of Mining

Blasting in a mine generally occurs in two phases primary blasting and secondary blasting Blasting Primary Blasting is the activity in which in-situ rock is broken in both development and stoping and in surface mining by drilling holes in the rock charging them with explosives and detonating the holes in a planned sequence...

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drilling and blasting practices in iron ore mine in india

An approach to improve blasting efficiency in an iron ore ABSTRACT This paper presents an approach to improve overall blasting efficiency in an iron ore mine The problems existing in the mines were oversize fragmentation severe backbreak frequent secondary drilling and blasting operations sloping bench faces and...

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H BLASTING IN SURFACE EXCAVATION

Blasthole diameter D Generally the cost of drilling and blasting decreases as hole diameter increas The relation between blasthole diameter and face height is approximately D = 0001 to 002 H A new iron ore deposit is to be worked by surface mining methods with 15 m benches using 150 mm diameter blasthol Since the prevailing...

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Drilling and Blasting Cost Estimation

Drilling and blasting are an essential part of most mining operations and are commonly major operating cost centr The effectiveness of blasting can have a significant influence on all subsequent activities and hence overall operating costs Drilling and blasting systems must be compatible with the overall mining method to minimise total costs and ensure operational...

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Underground Drilling and Blasting Training DVD

Oct 24 2012 0183 32 The Australian Centre for Geomechanics has developed this safety training DVD for underground metalliferous mine workers To purchase this product or find ou...

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PDF Optimization of blasting parameters in opencast

Drilling and blasting are the major unit operations in opencast mining Inspite of the best efforts to introduce mechanization in the opencast mines blasting continue to dominate the production Therefore to cut down the cost of production optimal fragmentation from properly designed blasting pattern has to be achieved Proper adoption of drilling and blasting can contribute significantly...

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Optimization of Blasting Parameters in opencast Mines

designed blasting pattern has to be achieved Proper adoption of drilling and blasting can contribute significantly towards profitability and therefore optimization of these parameters is essential Introduction Rock breaking by drilling and blasting is the first phase of the production cycle in...

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Comparative Costs of Drilling

Exploration drilling totaled 9756 million metres in 2007-08 an increase of 1301 million metres 15 from 2006-07 This continued the trend of increased exploration drilling evident since the trough in mineral exploration in 2001 Drilling levels remain below the peak in 1996-97 which was associated with large amounts of shallow drilling for...

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641 Blasting Safety Mining PPTs View free download

View Blasting Safety Mining PPTs online safely and virus-free Many are downloadable Learn new and interesting things Get ideas for your own presentations Share yours for free...

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BEST PRACTICES IN DRILL AND BLAST

the mining sector drilling blasting operations are being conducted through more strategic avenu Mining companies recognise the need to improve analysis of site data select appropriate tools and technologies achieve higher fragmentation and improve Oversized fragments at an iron ore mine in Western Australia 1 2 3...

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Blasting Course

Do you have the most up-to-date information in drilling and blasting to tackle common problems such as drill fleet optimization explosive selection and...

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