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 …
Life cycle assessment of opencast coal mine …
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Opencast Mining Technology Higher Production and …
WEB10 POTENTIAL AREAS FOR IMPROVEMENT IN OPENCAST MINING TECHNOLOGYNCLEquipment selection : Incorporate high performance equipment and …
Coal mining projects – Coal 2020 – Analysis
In September 2020, Pembroke was granted mining leases for the Olive Downs coking coal project, allowing project construction to start. First coal from the AUD 1 billion opencast mine is expected in 2022. The first stage has an expected production rate of 4.5 Mtpa of …
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 …
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 ...
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 …
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 …
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.
Technology Roadmap for Coal Sector
Dragline mining is the most cost-effective technology for the bedded deposits and is the first-choice technology for large opencast mining. Total of 32 draglines are in use in …
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. ...
An Investigation into Statistical Correlations Between Coal
In India, demand for coal exceeds its countrywide supply, despite its natural abundance, due to failure to achieve high production targets, especially in opencast mines, which are responsible for 94.98% of total raw coal production within the country. Employment of technological solutions, such as surface miners, is key to achieving …
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 ...
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 # …
Optimization of Blasting Parameters in opencast Mines
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. Explosives contribute currently about 5% of the direct cost of production and if the aggregate cost of drilling and blasting is taken together, this ...
(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 ...
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 …
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 …
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 …
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 ...
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 …
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 …
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 ...
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 …
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...
Lesson 7.3: Mechanical Surface Mining Methods
Open Cast Mining. Open cast mining is usually associated with coal or other tabular deposits that are more or less flat-lying. A significant difference between open pit and open cast mining methods is that in open cast mining, overburden that is removed to gain access to the ore is immediately placed in the previously mined cut.
INNOVATIONS OF DEEP OPENCAST MINING WITH …
Output in 2019 of 783 Mt and. around 90% production is from open-pit mining. Opencast reserves are getting deeper and. innovations are require d for sustainability and viability. Large equipment ...
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 …
Optimization of Blasting Parameters in opencast …
Development of a Blast Optimization Model. Selection of proper explosive in any blasting round is an important aspect of optimum blast design. Basic parameters include VOD of …
Dust control practices in open cast mining industry. | PPT
3. In mining activity excavation is basically done by drilling and blasting and can be pinpointed as contributions to dust generation. With an increased level of mechanization and the pressing demand to boost production for minimizing the supply gap, generation of air borne respirable dust is increasing. Prolonged exposure of coal mine …
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.
