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drilling blasting in iron ore mines procedure

drilling blasting in iron ore mines procedure

Drilling and Blasting Technical Aspects of Mining ...

Most blasting in mines involves charging explosives into holes drilled in rock. The entrance or mouth of a drill hole is called the collar and the end is the toe. Drilling is still carried out in some cases, in the ASM sector, by hand, using a hammer and chisel. This is obviously tedious and slow, especially in hard-rock mining conditions.

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BEST PRACTICES IN DRILL AND BLAST - IQPC

the mining sector, drilling blasting operations are being conducted through more strategic avenues. Mining companies recognise the need to improve analysis of site data, select appropriate tools and technologies, achieve higher fragmentation and improve exclusion zone management. But what’s being done and what can be done to realise these objectives? Ahead of Drill and Blast 2014, Mining ...

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Surface Mine Drilling and Blasting Procedure using Surpac

19/06/2017  Drilling and Blasting in any hard rock mine is the first process to free the ore from the in situ or host rocks. The degree and the efficiency through which drilling and blasting is done actually determines the quality of the broken material for eventual downstream processing.

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Mining of Iron Ores – IspatGuru

14/03/2014  Drilling in the benches of open pit mining is done for production of iron ore with mechanized drills specific for each mining method. The main objective of drilling operations is to create a hole of suitable diameter, depth and direction in rock for explosives to be placed for blasting

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Blaster's Training Modules - Module 4 - Blasthole Drilling

encountered during drilling that may affect blasting results or require changes in hole-loading practices. Drilling Methods The components of a drill rig are (1) the rig itself, which supplies the power to mobilize, drill rock, and remove the drill cuttings from the hole; (2) the mounting; (3) the drill steels or drill string; and (4) the drill bit. There are two basic drilling methods ...

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Optimization of Blasting Parameters in opencast Mines

MINES 3.1 Drilling. 3.2 Blasting 3.3 Recent Advancement in Drilling and Blasting Techniques 9-22 23-29 30-40 CHAPTER 4: REVIEW OF OPTIMIZATION TECHNIQUES 4.1 General 4.2 Optimization of Mine Production System through Operation Research Techniques 41-45 45-48 CHAPTER 5: DEVELOPMENT OF BLAST OPTIMIZATION MODEL 5.1 Parameters affecting explosive

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Blasting Drilling of Open Pit Mining - Hardrockdrills

23/10/2018  Blasting Drilling of Open Pit Mining. Blasting Drilling of Open Pit Mining. October 23, 2018. Lecture Overview. Introduction; Pit Geometry . Interaction deposit geometry; Design and management; Overall process. Interaction of distinct operations; Machinery – Drill Rigs, Loaders, Excavators etc. General appraisal; History. From ancient times to now; Classifications. By operation

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Surface Mine Drilling and Blasting Procedure using Surpac

19/06/2017  Surface Mine Drilling and Blasting Procedure using Surpac. Drilling and Blasting in any hard rock mine is the first process to free the ore from the in situ or host rocks. The degree and the efficiency through which drilling and blasting is done

Get Price

Mining of Iron Ores – IspatGuru

14/03/2014  Drilling in the benches of open pit mining is done for production of iron ore with mechanized drills specific for each mining method. The main objective of drilling operations is to create a hole of suitable diameter, depth and direction in rock for explosives to be placed for blasting activities. The drilling of the holes is done normally in a particular pattern which depends on the bench ...

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Blastability evaluation for rock mass fragmentation in ...

01/01/2015  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).In these mines, blast holes are controlled in ANFO (in dry conditions) and Emulite (for aqueous conditions) as the main explosive,

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Major Mines Projects FMG Mine

Drilling and blasting is used to allow areas of hard rock overburden to be removed. Drilling and blasting is undertaken in accordance with current operational procedures, which generally incorporate the following steps: 1. A series of holes are drilled into the rock. 2. The holes are filled with explosives and detonated. 3. The rock breaks up or collapses after detonation and the rock rubble ...

Get Price

Blasting Drilling of Open Pit Mining - Hardrockdrills

23/10/2018  Blasting Drilling of Open Pit Mining. Blasting Drilling of Open Pit Mining. October 23, 2018. Lecture Overview. Introduction; Pit Geometry . Interaction deposit geometry; Design and management; Overall process. Interaction of distinct operations; Machinery – Drill Rigs, Loaders, Excavators etc. General appraisal; History. From ancient times to now; Classifications. By operation

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Optimisation grade control procedures at the open pit ...

procedures at the Yandi iron -ore mine, Western Australia: geostatistical approach, Applied Earth Science Journal, v.119, No.3, p.132-142 ... 5318 drill holes 664 drill holes 222 drill holes which cost $3.03M which cost $0.38M which cost $0.13M Economics: OPEX vs. Cost of Lost/Gained metal . Summary and Conclusions Efficiency of Grade control depends on sampling grid and samples quality.

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Blast Hole Drilling: The Basic Process RPM Drilling

24/08/2017  Blast hole Drilling is a technique used in mining whereby a hole is drilled into the surface of the rock, packed with explosive material, and detonated. The aim of this technique is to induce cracks in the inner geology of the surrounding rock, in order to facilitate further drilling and associated mining activity. The initial hole into which the explosives are packed is known as the “blast ...

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HANDLING OF MISFIRES IN MINES – Mining and Blasting

30/12/2011  HANDLING OF MISFIRES IN MINES: Dealing with it is potentially most dangerous activity. 1. INTRODUCTION – Misfire means the complete or partial failure of a blasting charge to explode as planned.The explosive or pyrotechnical products that remain in the ground or in the muckpile might be triggered by any mechanical effect during the digging, milling or crushing stages of the mining

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Reduce Drill and Blast Cost - Orica

Advanced blasting technology and clever blast design can improve the utilisation of the drilling fleet and reduce capital and operating costs without compromising productivity. Matching explosive energy to geology enables expanded patterns without affecting fragmentation. This in turn increases the drilling yield, providing more tonnes per drill metre. Products and procedures for safely ...

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Project Technoblast

It includes Mine Planning, Excavation, Drilling, Blasting, Dump Management, Screening, Crushing and Loading the finished goods in to dispatch trucks. Excavation of waste is 72 Lacs MT / per annum and finished ore is 40 Lacs MT/per annum from this Mine. 15 Yrs: Drilling Blasting Services at Boriya Tiphu iron ore mines: 10 Yrs: Clients. HINDALCO INDUSTRIES LIMITED, Gare Palma IV/4 and IV/5 ...

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Mining of Iron Ores – IspatGuru

14/03/2014  Drilling in the benches of open pit mining is done for production of iron ore with mechanized drills specific for each mining method. The main objective of drilling operations is to create a hole of suitable diameter, depth and direction in rock for explosives to be placed for blasting activities. The drilling of the holes is done normally in a particular pattern which depends on the bench ...

Get Price

Environmental Blast Management Procedure

The paper “Scientific Evaluation of Fauna Sensitivity to Blasting” authored by Martin (2012) documents a seismic blasting trial completed by Rio Tinto at a Pilbara Iron ore mine that monitored the blast vibration generated at a PLNB colony for a total of 6 explosives charges and correlated the data to bat monitoring data. In summary the ...

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(7) Drilling for mining operations

Drilling for Mining Operations. Importance of Drilling and Sampling: • Important mineral exploration procedure • Delineate subsurface conditions • Expensive • Number of techniques • Tests ideas and theories developed during prospect and target generation • LOCATES AND DEFINES ECONOMIC MINERALISATION. Drilling Techniques • 3 main techniques used in Goldfields – RAB (Rotary Air ...

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Major Mines Projects FMG Mine

Drilling and blasting is used to allow areas of hard rock overburden to be removed. Drilling and blasting is undertaken in accordance with current operational procedures, which generally incorporate the following steps: 1. A series of holes are drilled into the rock. 2. The holes are filled with explosives and detonated. 3. The rock breaks up or collapses after detonation and the rock rubble ...

Get Price

Mining - LKAB

The method is based on mining the ore in descending levels through drilling and blasting. The thickness of the slabs, known as the bench height, is 15 metres, and the slabs are worked downwards. Bench mining is an effective and well established mining method, which allows maximum extraction from the rock with a high degree of safety.

Get Price

HANDLING OF MISFIRES IN MINES – Mining and Blasting

30/12/2011  HANDLING OF MISFIRES IN MINES: Dealing with it is potentially most dangerous activity. 1. INTRODUCTION – Misfire means the complete or partial failure of a blasting charge to explode as planned.The explosive or pyrotechnical products that remain in the ground or in the muckpile might be triggered by any mechanical effect during the digging, milling or crushing stages of the mining

Get Price

Blast Hole Drilling: The Basic Process RPM Drilling

24/08/2017  Blast hole Drilling is a technique used in mining whereby a hole is drilled into the surface of the rock, packed with explosive material, and detonated. The aim of this technique is to induce cracks in the inner geology of the surrounding rock, in order to facilitate further drilling and associated mining activity. The initial hole into which the explosives are packed is known as the “blast ...

Get Price

Major Mines Projects Sishen Mine

Four types of hard iron ore, namely massive, laminated, conglomerated and brecciate iron ore are mined. Blast hole drilling is a continuous process and blasting is done once a day, typically in the early afternoons between 12h00 and 14h00, at each of the active mining areas within the mine pit.

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NPI Emission Estimation Technique Manual for Mining

This manual describes the procedures and recommended approaches for estimating emissions from facilities engaged in the mining of coal and metalliferous minerals. The mining industries covered in this manual are: coal, iron ore, bauxite, copper ore, gold ore, nickel ore, silver-lead-zinc ore, uranium ore and other metallic ores. EET MANUAL:

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Reduce Drill and Blast Cost - Orica

Advanced blasting technology and clever blast design can improve the utilisation of the drilling fleet and reduce capital and operating costs without compromising productivity. Matching explosive energy to geology enables expanded patterns without affecting fragmentation. This in turn increases the drilling yield, providing more tonnes per drill metre. Products and procedures for safely ...

Get Price

Drilling and blasting iron ore mine - YouTube

10/12/2016  Now chatting: leawaysschool/solution.htmlContact Us: leawaysschooldrilling and blasting for iron oreShift Foreman: Blasting, Ku...

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(7) Drilling for mining operations

Drilling for Mining Operations. Importance of Drilling and Sampling: • Important mineral exploration procedure • Delineate subsurface conditions • Expensive • Number of techniques • Tests ideas and theories developed during prospect and target generation • LOCATES AND DEFINES ECONOMIC MINERALISATION. Drilling Techniques • 3 main techniques used in Goldfields – RAB (Rotary Air ...

Get Price

Blast Hole Drilling: The Basic Process RPM Drilling

24/08/2017  Blast hole Drilling is a technique used in mining whereby a hole is drilled into the surface of the rock, packed with explosive material, and detonated. The aim of this technique is to induce cracks in the inner geology of the surrounding rock, in order to facilitate further drilling and associated mining activity. The initial hole into which the explosives are packed is known as the “blast ...

Get Price

Major Mines Projects FMG Mine

Drilling and blasting is used to allow areas of hard rock overburden to be removed. Drilling and blasting is undertaken in accordance with current operational procedures, which generally incorporate the following steps: 1. A series of holes are drilled into the rock. 2. The holes are filled with explosives and detonated. 3. The rock breaks up or collapses after detonation and the rock rubble ...

Get Price

Reduce Drill and Blast Cost - Orica

Advanced blasting technology and clever blast design can improve the utilisation of the drilling fleet and reduce capital and operating costs without compromising productivity. Matching explosive energy to geology enables expanded patterns without affecting fragmentation. This in turn increases the drilling yield, providing more tonnes per drill metre. Products and procedures for safely ...

Get Price

Environmental Blast Management Procedure

The paper “Scientific Evaluation of Fauna Sensitivity to Blasting” authored by Martin (2012) documents a seismic blasting trial completed by Rio Tinto at a Pilbara Iron ore mine that monitored the blast vibration generated at a PLNB colony for a total of 6 explosives charges and correlated the data to bat monitoring data. In summary the ...

Get Price

HANDLING OF MISFIRES IN MINES – Mining and Blasting

30/12/2011  HANDLING OF MISFIRES IN MINES: Dealing with it is potentially most dangerous activity. 1. INTRODUCTION – Misfire means the complete or partial failure of a blasting charge to explode as planned.The explosive or pyrotechnical products that remain in the ground or in the muckpile might be triggered by any mechanical effect during the digging, milling or crushing stages of the mining

Get Price

PROCEDURES FOR BLASTING

Modification of blasting procedures should include limiting the size and frequency of blasts to limit the production of noxious fumes, and stripping of the overburden prior to blasting and excavating the shot rock immediately after blasting to allow the venting of gases. The use of vent holes or vent pits may also be necessary. The action plan should cover both building occupants and ...

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Mining - LKAB

The method is based on mining the ore in descending levels through drilling and blasting. The thickness of the slabs, known as the bench height, is 15 metres, and the slabs are worked downwards. Bench mining is an effective and well established mining method, which allows maximum extraction from the rock with a high degree of safety.

Get Price

Major Mines Projects Sishen Mine

Four types of hard iron ore, namely massive, laminated, conglomerated and brecciate iron ore are mined. Blast hole drilling is a continuous process and blasting is done once a day, typically in the early afternoons between 12h00 and 14h00, at each of the active mining areas within the mine pit.

Get Price