ASK MINING: Blasting Practices at Open Cast Mines
Following are some important facts related to blasting practices in open cast mines:-. 1. Drilling: There are two major types of drilling techniques being used. Down the Hole (DTH): It is used when the blast hole diameter varies from 100mm to 380mm and the depth of blast hole is 12-15m. Rotary: When the blast hole diameter > 400mm and the depth
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Increasing efficiency in opencast lignite mining in Mississippi with
Increasing efficiency in opencast lignite mining in Mississippi with the Wirtgen Surface Miner 4200 SM. But even in this mine, it made sense to increase efficiency using modern technologies,
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(PDF) METHOD FOR CALCULATION OF DRILLING-AND-BLASTING OPERATIONS
Practical implications. A new method has been developed for calculation of drilling-and-blasting operations parameters during mining with emulsion explosives application, which results in
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1. Introduction
PARAMETERS FOR AN OPENCAST MINE . 1. Dr. H. K. Naik, former Head and Associate Professor. 2. Rahul Kumar, M.Tech., Department of Mining Engineering . National Institute of Technology, Rourkela . Abstract . According to the study of performance analysis of various unit operations on opencast mines,
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Productivity Improvement in Underground Coal Mines
The different mining operations in an underground coal mine include, dewatering, dressing and supporting of face, drilling of blast holes at the coal face, charging, stemming and blasting explosives at face, fume clearance after blasting, loading of coal at the face using loaders and conveying coal to the bunker by conveyor belts etc. Productivity improvement through lean manufacturing
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Surface miners drive up savings in coal mining
Enhanced safety at the mine because no explosives need to be stored; The major cost factor in opencast mining is haulage. Surface miners improve quality and cost-efficiency.
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Chapter 8 BLAST DESIGN
The economic analysis of the use of explosives is an important part of blasting operations in mining and construction. Explosives are energy, and the efficient use of this energy is a major factor in keeping rock blasting costs under control. High-energy explosives enhance fragmentation, which ultimately produces a positive effect on production
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ON-BENCH PRACTICES FOR OPEN CUT MINES AND QUARRIES
Australian Explosives Industry And Safety Group Inc. Code of Practice ON-BENCH PRACTICES FOR OPEN CUT . MINES AND QUARRIES . Edition 1 . November 2015
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Enabling Better Blasting
Explosive suppliers, working closely with the mines, are continuously expanding and improving their oerings with a wide range of more versatile explosives. Imre notes: "This enables mines to choose the best explosives for the local conditions (rock characteristics and blasting targets) and to maximise eciency.
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New blasting techniques for productivity enhancement in underground
However, it is high time to balance the opencast and underground mine production, in view of the exhausting reserves in shallow depth and socio-environmental problems due to opencast mining. With this back-drop, Central Institute of Mining & Fuel Research (CIMFR), Regional Centre, Nagpur developed two new underground blasting techniques with simple modifications in explosive loading patterns.
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Surface Mining Methods and Equipment
appropriate mining method is selected based on technical, economic, and environmentally accountable considerations. The first step in selecting the most appropriate mining method is to compare the economic efficiency of extraction of the deposit by surface and underground mining methods . This section reviews surface mining methods and
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‘Scientific mining can prevent increasing disaster’
‘Scientific mining can prevent increasing opencast mines which is caused due to presence of weak planes along which a large chunk of the sides of an opencast mine slides down. Explosion in
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Opencast Mining (Quarrying): Methods, Advantages & Disadvantages
Opencast mining or quarrying of minerals is easier than mining by underground methods. During quarrying the alluvium and rocks below which the minerals lie, are removed and dumped, in the initial stages, in a place which is not required in future for quarrying, residential or other purposes.
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For DIPLOMA IN MINING ENGINEERING (Effective FROM 2019-20 Sessions)
As a Mining Engineer, one has to develop the basic concepts and principles of winning and working in mines. Further, he should have basic knowledge of explosives for development of mines. B. OBJECTIVES On completion of the subject, students will be able to : Develop the concept of choice of Opencast Mining.
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8 strategies for reclaiming efficiency and lowering costs in mining
1. Strengthen mine planning. To improve sector productivity, companies can: Refocus on high quality production by increasing cut off grades. Reduce capital expenditures in properties with lower production potential and shorter mine lives. Consider the benefits (and potential risks) of reducing reserves.
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Operational safety for mining and quarrying
GooD PrACTICe GUIDeLINeS // HEALTH AND SAFETY AT OPENCAST MINES, ALLUVIAL MINES AND QUARRIES 74 Mining operations must address transportation of explosives in their explosives at the mining operation PHMP including inspection and reporting on the safety of equipment and how the equipment used for transportation will be made safe.
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Operational safety for mining and quarrying
GooD PrACTICe GUIDeLINeS // HEALTH AND SAFETY AT OPENCAST MINES, ALLUVIAL MINES AND QUARRIES 74 Mining operations must address transportation of explosives in their explosives at the mining operation PHMP including inspection and reporting on the safety of equipment and how the equipment used for transportation will be made safe.
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Explosives
Our Explosives division markets and distributes commercial explosives, a wide range of specialised blasting accessories, a diversified range of bulk explosives used in underground mines, opencast mines and quarries, as well as supplying value add services to Southern Africa''s leading mining companies.
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Development and Application of Blast Casting Technique in Large-Scale
Blast casting is a high-efficiency technique applied in surface mines for overburden removal and results in stripping cost savings. According to ballistic theory and center-of-mass frame basic movement principles, key factors influencing blast casting effect were analyzed, which include bench height and mining panel width, inclined angle of blast holes, explosive unit consumption (EUC), delay
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Scott | Increasing productivity, efficiency and safety in mining
Increasing productivity, efficiency and safety in mining Mining is currently seeing the start of what will be the great convergence of IT and operational technologies. Many observers have touted it as the foundation for the industry’s next technological step change, which will be focused on an effort to facilitate productivity gains, efficiency, and safety.
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Optimization of Blasting Parameters in opencast Mines
Improvement in production has been achieved with the help of large capacity opencast machineries, continuous mining system with improved design, development of modern generation, explosives and accessories, process innovations and application of information technologies and increased adoption of computerized mine planning and control. Drilling
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Enhancement of Drilling & Blasting efficiency in Opencast
Enhancement of Drilling & Blasting efficiency in Opencast and Underground Mines *** Use of Modern precision Drilling, Electronic Delay Detonator system and other sophisticated Equipments with New-generation Emulsion Explosives are the need-of-the hour. ----- Author
explosive energy to improve blasting efficiency and he has found that there was an increase in explosive energy transmitted to rock mass, resulting in better fragmentation. Rampura Agucha opencast mine of HZL, India and Aditya Limestone mine of Aditya Birla Group, India are also
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Surface Mine Blasting
SURFACE MINE BLASTING Proceedings: Bureau of Mines Technology Transfer Seminar, Chicago, IL, April 15, 1987 Compiled by Staff, Bureau of Mines ABSTRACT The Bureau of Mines has sponsored a comprehensive research program to enhance the safe, effective, and efficient use of blasting technology by the mining industry.
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Assessment of ground rippability in opencast mining operations (Journal
Singh, R N, Denby, B, Egretli, I, and Pathan, A G. 1986. "Assessment of ground rippability in opencast mining operations." United Kingdom. abstractNote = {Ground preparation by ripping or blasting in hard and abrasive rock masses is desirable to improve the operational efficiency and performance of excavating machinery.
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Opencast Mining – Prisma Training Solutions
Increase the productivity and efficiency of your employees with a dynamic, hands-on courses in open cast mining: Prisma is a leader in professional training, and a fully MQA accredited specialist training service provider to the mining sector.
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Causes of fly rocks and remedial measures in open-pit blasting
In Opencast mine, blasting operation ROES is being developed as a more efficient way of mining orebody types that use drill and blast for It also aims to improve mining performance by more
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Blast Training Course Guide
Explosives and Mining Regulations pertaining to explosives • Identify potential safety hazards relating to explosives and how to avoid them • Conduct Job Safety Analysis (JSA) Assessments for common blasting environments Underground Shotfirer Duration 3 Days Who Will Benefit This course is designed for those who have had some association
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Optimization of Blasting Operation in Opencast Mine
engineers to achieve a better output at a lower cost of mining. Because modern mines require large amounts of explosives throughout the mine''s life, the cost of blasting operation can be significantly reduced by reducing the cost of explosives. Key Words: Optimization, Drilling, Blasting, Opencast mine, Blast model, Explosives, Machinery. 1.
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Rock blasting for mining
Dynamite is an explosive made of nitroglycerin, sorbents (such as powdered shells or clay) and stabilizers. Dynamites gained popularity due to its wide- scale use as a safer alternative to gun powder and nitroglycerin. 46. 46 3.3 Selection of explosives: Usually four types of explosives are used in surface mining operations.
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NONEL INITIATION FOR ECO-FRIENDLY BLASTING
efficiency and also optimize the cost of blasting. Keywords: NONEL, Booster, Blast Hole Drilling, Mine PNR Mines, ANFO, – Detonators INTRODUCTION . Blasting is the process of breaking of bulk rock masses into loose forms, using explosive compounds. Here, the primary role is played by the explosives. The explosives are the
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