Working of dragline | PPT
3. DRAGLINE • Walking draglines are for many years the most popular machine for opencast mining due to their flexibility, utility and availability. • their low operating costs for waste mining • Draglines are deployed wherever there is scope for side casting Overburden above coal seam into the de-coaled area. • It is very cost effective …
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Analysis of Accidents Due to Slope Failure in Indian Opencast Coal
The opencast method is a dominant method and accounts for more than 90% of the total coal produced in India. In opencast mining, overburden (waste rock) is removed to access the coal seam (Dash ...
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Lesson 7.3: Mechanical Surface Mining Methods
In order to improve dust pollution control in opencast coal mines, this study combines prospect theory with evolutionary game theory, analyzing the evolutionary …
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Blast design in opencast mining | PPT
59 likes • 13,875 views. gopal karmakar. Follow. Its a presentation about the design aspect of open cast mine. The author believes it will surely help the mining engineering students at the beginning level. Technology. 1 of 17. Blast design in opencast mining - Download as a PDF or view online for free.
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Explosives and blasting in underground coal …
60 likes • 15,527 views. V. Group. ppt on explosives and blasting in ug coal mines. Engineering. 1 of 13. Download Now. Download to read offline. Explosives and blasting in underground …
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(PDF) Underground and Opencast Coal Mining Methods in …
The underground method is suitable for. extraction of deeper coal seams, whereas opencast method is suitable for shallow coal seams. However, due to less production cost, mechanisation, and less ...
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INNOVATIONS OF DEEP OPENCAST MINING WITH …
The Coal vision 2025 of India estimates that the total domestic coal production is projected to increase to 1086 MT in 2025, of which the opencast production will be 902 MT (83%). In India...
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Optimization of Blasting Parameters in open cast mines
With the growing demand of different minerals, there is an upsurge in interest and action in opencast mining because of improvement of productivity, recovery and safety of mining operations . There has been observed an improvement in production. 1. Large capacity open cast mines 2. Continuous mining system 3. Explosive and …
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Opencast coal mining in India: Analyzing and addressing …
By 2016, coal production from opencast mining in India had risen to about 600 million tonnes (Mt), which represented about 70 percent of total coal production. The increasing trend toward opencast ...
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Mass Production Technologies for Underground Coal Mining …
As opposed to the global trend, India is producing about 95% of coal from opencast mining methods . Figure 2 illustrates that coal production from opencast mining is continuing to grow during the last ten years and that from underground mining is declining . This is not the sustainable scenario for India given the limited land resources …
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Dilip Buildcon bags massive 25 year MDO mining …
India's Dilip Buildcon (DBL) has received a letter of acceptance (LOA) from Coal India-owned Mahanadi Coalfields Ld (MCL) for a Mine Developer cum Operator (MDO) contract for the development …
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List of Equipment Used in Opencast Coal Mining | Mining
At Kudremukh Iron Ore Project, one of the largest opencast mines in India, the capacities of some of the machines are : shovels 10.7 m 3, production trucks 108 te, front end loaders 10 m 3, electric drills for 310 mm dia. blast holes, gyratory crushers 4000 te/hr. Equipment # …
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Mining Methods Guide | PPT
For opencast mining, the main methods described are shovel and dumper, dragline, surface miner, and bucket wheel excavator. Underground mining methods discussed include continuous miners, longwall mining, and road headers. New concepts being implemented in India such as highwall mining, punch longwall mining, and …
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Concept of oc mine planning & design(final) | PPT
Mining ppt 2014. Mining ppt 2014 Ajoy ... Ideal conditions for Opencast Mining 1. Thickness of coal seams - > 5m 1. Flat gradient - < 1 in 6 1. Strike length - > 1 km 1. No.of seams - Less the better, with higher thickness 5. Coal without stone bands 6. Free from surface structures / features. 7. Preferably non-forest land. 8. ...
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recovery by opencast pillar mining in the Witbank …
mining method referred to as opencast pillar mining, with an aim of maximizing coal recovery from the pillars. The selection and design process of the opencast pillar mining method was also influenced by the coal production rates and demand from the power station. Three seams are being mined; the no. 4 lower seam (S4L), no. 2 seam (S2), and …
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Study of Illumination System in Open Cast Coal …
JBIET- Hyderabad (India) 3. Abstract: Illumination is undoubtedly a vital aspect in mining operations. Properly designed and. implemented lightning system would provide the mine workers with ...
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Blast-Casting Mechanism and Parameter Optimization of a
Specifically speaking, once the blast-casting technique is applied in opencast coal mines for overburden removal, 30–65% of the materials can be directly thrown ... and 9 #. Of the three coal seams, 5 # is partially mineable. As for 9 # coal seam, its mining authority is restricted within the scope of mineral rights. Therefore, 6 # composite ...
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Opencast coal mining in India: Analyzing and …
Opencast coal mining in India: Analyzing and addressing the air environmental impacts - Ghose - 2007 - Environmental Quality Management - Wiley …
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Design of an Effective Illumination System for an Opencast Coal …
Research studies carried out on opencast mine illumination by different investigators are limited in both India and abroad. Mayton [] investigated different surface mining operations in various regions of the United States using visual task evaluation, a method used by the CIE and the IES and data were collected for surface mines and …
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Rock fragmentation control in opencast blasting
Presently, seams R-V and R-VI are being extracted by opencast method of mining. The mine is producing about 4.5 Mt of coal and removal of overburden is about 12 Mm 3. The stripping ratio of the mine is 1:4.72, i.e. 4.72 m 3 of overburden is to be removed for mining of 1 t of coal. The total coal reserve of the mine is 188.26 Mt.
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Safety and health in opencast mines
92-2-107103-0 [ISBN] Download: pdf - 0.5 . This code applies to any situation or operation involving occupational safety and health aspects in opencast mines, and calls for attention to be paid to them by the competent authorities with responsibility for safety and health and working conditions with regard to opencast mining. The …
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Design of openpit mining | PPT
Design of openpit mining. Mar 12, 2012 •. 144 likes • 56,004 views. S. SATYANARAYANA I. Technology Business. 1 of 25. Design of openpit mining - Download as a PDF or view online for free.
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Opencast Mining
Opencast Mining. Opencast mining destroys landscapes, forest, and wildlife habitat at the mining site when trees, plants, and topsoil are cleared from the mining area. From: Coal …
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coal mining training report | PPT
3. INTRODUCTION The parent company and subsidiary of DRC UG Mine is COAL INDIA LIMITED and WESTERN COALFIELD LIMITED. The head office of WCL is at NAGPUR( Maharastra). The mine is situated at WARDHA RIVER BELT. Durgapur Rayatwari Colliery is the largest underground mine of Chandrapur Area. approximately …
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MINING VARIOUS TOPICS PPTs
CLICK ME TO DOWNLOAD PPT ON S upport of ug excavations. CLICK ME TO DOWNLOAD PPT ON Scenario of underground coal mining India. Mine Portal - India's Mining Exams Test Series Provider, Mine Portal is the favorite choice of thousands of mining professional aspirants for online exam preparation.
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Opencast coal mining in India: Analyzing and addressing …
Opencast coal mining in India: Analyzing and addressing the air environmental impacts. Mrinal K. Ghose, Mrinal K. Ghose. Indian School of Mines, Dhanbad. Search for more papers by this author. Mrinal K. Ghose, Mrinal K. Ghose. Indian School of Mines, Dhanbad.
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Assessment of air pollution around coal mining area: …
Coal dust is reported as the major pollutant in the air of open cast coal mining areas (Vallack and Shillito, 1998). The primary source of fugitive dust at fully operational surface mine may include overburden (OB) removal, blasting, mineral haulage, mechanical handling operations, minerals stockpiles and site restoration (Appleton et al., …
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A precise TIN clipping algorithm for the digital mining …
The triangulated irregular network (TIN) clipping algorithm is one of the vital algorithms for the digital mining design of opencast coal mines based on the geological digital elevation model (DEM) described by TIN. This paper gives a precise TIN clipping algorithm applied in the digital mining design of the opencast coal mine. To improve the …
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Life cycle assessment of opencast coal mine production: a
Opencast coal mining leads to the destruction of local ecological environment and the loss of natural conditions (Milder et al. 2013). China is one of the largest coal production countries in the world, with the coal production of 3680 Mt and 46.6% of the world's production. Coal production is also the main source of greenhouse …
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SAFETY IN COAL MINES
Coal companies have adopted a well-defined safety policy, which is the core of all safety initiatives. There are well designed Safety Management Plans in place for all mines to ensure safety with an aim to achieve "Zero Harm Potential (ZHP)". Statutory Frame Work for Coal Mine Safety: Coal mining, world over, is highly regulated industry due to
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