How To Improve E Plosive Efficiency In Opencast Mines

Energy efficiency assessment of electric shovel operating in opencast mine

Energy efficiency benchmarking for mining system has been developed by Wang et al. and Sahoo et al. [7,8]. Electric shovels consume about 32% of the total electrical energy usage in an opencast mine [9]. Energy efficiency indices have been used by researchers to assess energy efficiency in mining process.

INFLUENCE OF ROCK AND EXPLOSIVES PROPERTIES …

In opencast coal mines, massive overburden is removed to reach the coal ... rock is more liable to crushing and hence there is an increase in fines. 2.2.3 Porosity

Study of efficiency and productivity growth in opencast

References [4, 13] used the DEA model version of the Malmquist index for studying the growth of efficiency and productivity of the coal mining sector in India over the period 1985-1997. e results ...

Integration of TanDEM-X and SRTM DEMs and Spectral …

increasing demand of mine resources, widespread opencast mining has led to significant changes in LULC and caused substantial damage to the environment. An e cient approach of detecting mining activities at large scales is of critical importance in mitigating their potential impacts on downstream settlements and in assessing LULC characteristics.

Operational safety for mining and quarrying

GooD PrACTICe GUIDeLINeS // HEALTH AND SAFETY AT OPENCAST MINES, ALLUIAL MINES AND QUARRIES 72 The use of explosives to break rock at a mine or quarry is a hazardous process. The blasting procedure must be managed to protect workers and the general public from the adverse consequences of a blast. This section describes:

How digital innovation can improve mining productivity

The global mining industry is under pressure. In the short term, falling commodity prices are squeezing cash flow. Looking ahead, many existing mines are maturing, resulting in the extraction of lower ore grades and longer haul distances from the mine face; ore-body-replacement rates are in decline; and new-mine-development times are increasing.

A Review on Blast Performance Monitoring …

To overcome such situations, Highwall mining method may be looked as an opportunity to increase the coal production from worked out surface coal mines as well as thin seams left unmined due to ...

Improving Slope Stability in Open Cast Mines via Machine …

Slope stability has been a matter of concern for most geologists, mainly due to the fact that unstable slopes cause a greater number of accidents, which in turn reduces efficiency of mining operations. In order to reduce the probability of these slope instabilities, methods like tension crack mapping, inclinometer measurements, time domain reflectometry, borehole …

Dump Slope Stability Rating and Risk Assessment in Opencast Coal Mines

In Indian scenario, majority of large opencast coal mines are facing overburden dump stability problems (dump slide) as it results in loss of production, extra stripping cost to remove land slide material, reforming overburden dump benches, diversion of haul roads, production delays and sometimes loss of human lives and heavy earth moving machinery …

INNOVATIONS OF DEEP OPENCAST MINING WITH …

The operating cost of mechanized opencast mines has escalated with an increase in prices of essential inputs, like materials, spares, haul-road maintenance, spiraling wages, and improved welfare ...

Analyzing Overall Equipment Effectiveness of HEMM …

Open-pit or surface mining is considered to be one of the most capital extensive industries in the world. Massive costing and condensed productivity are enforcing organizations for automation of mining machinery especially heavy earth moving machineries (HEMMs) like dumpers, shovel and dozers.

Optimization of Blasting Parameters of Opencast Mines

ANFO and other powder explosives. In opencast mining both vertical and inclined holes practiced with the bench face. The holes drilled in a row may be single or multiple. So those …

The Mine Call Factor

With rising costs in the mines and rising pay limits, the actual decision process to mine or not to mine a stope becomes of increasing importance in the maintenance of a reasonable Mine Call Factor and, thus, of an efficient producing gold mine. G. Reference de Jager, E.J. (1996) "the analysis of the Mine Call Factor in gold mining, with specific

Maintenance and Performance Analysis of Draglines …

Table 3 Mining Parameters Of An Opencast Mine SSH II. Methodology The Dragline Performance and Maintenance Data Is Collected From The Reputed Mine. This Data Will Give The Annual Output Of Dragline Based On The Data. The Ownership And Operating Cost Is Also Calculated. 3.1 Availability (A) And Utilization (U):

Energy efficiency assessment of electric shovel operating in opencast mine

Energy efficiency benchmarking for mining system has been developed by Wang et al. and Sahoo et al. [7, 8]. Electric shovels consume about 32% of the total electrical energy usage in an opencast mine [9]. Energy efficiency indices have been used by researchers to assess energy efficiency in mining process.

Overall Equipment Effectiveness of Shovel-Dumper Operation in Opencast …

One of the principal costs in opencast mine is related to application of loading and haulage equipment. The real challenge of mine management of an opencast mines is to select the proper fleet size of dumpers and shovels and to utilize them effectively; it secures the production needs of a mine as well as minimizes costs of production. Overall equipment …

Optimization of Blasting Parameters in opencast Mines

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 explosive …

A new algorithm to improve the energy efficiency of a coal …

DOI: 10.1504/ijogct.2021.118649 Corpus ID: 240398106; A new algorithm to improve the energy efficiency of a coal-fired thermal power plant by determining the optimum excavation parameters in an opencast lignite mines

Rock fragmentation control in opencast blasting

1. Introduction. Rock fragmentation distribution influences a range of mining and milling processes including load and haul rates, crushing and grinding performance and ore recovery in beneficiation processes (Michaud et al., 1997).In opencast mining, where blasting is employed for excavation, the overall cost effectiveness of the production operations is …

Reclamation of Degraded Landscapes due to Opencast Mining

1. Introduction. Even though it is regarded as a crucial economic activity worldwide, mining has a significant negative impact on environment. Due to its nature, especially opencast mining inevitably leads to serious degradation on ecological and aesthetic values of …

Skip Conveying – An Approach to optimise Cost and Energy Efficiency …

The major advantages of the new system are highlighted through a concrete example and may give operators food for thought when planning or redesigning mines in the future. Typical Opencast Mining Operations. Fig. 1 shows a typical opencast mine for copper and gold ore with its steep banks and winding roads.

OVERVIEW OF BLASTING PARAMETERS OPTIMIZATION …

slurries, water gels, ANFO and other powder explosives. In opencast mining both vertical and inclined holes practiced with the bench face. The holes drilled in a row may be single or …

Productivity in mining operations: Reversing the downward …

Worldwide mining operations are as much as 28 percent less productive today than a decade ago, according to new McKinsey research. The results from McKinsey's new MineLens Productivity Index (MPI), which adjusts for declining ore grades and mine cost inflation, show that the pronounced decline in productivity is evident across different commodities and is …

Energy Factor-Based Blast Design in Large Opencast Coal …

Recently, the explosive's engineering community has largely occupied themselves with applying technology to subsets of the design problem – how to improve or …

Advances in coal mining technology and sustainable mining …

Loaders can increase the efficiency of the mining cycle by decreasing wait time of shuttle cars where very large-capacity CMs are used. ... Status of air pollution due to opencast coal mining and its control in Indian context. Undefined. Google Scholar. Government of Canada, 2021. Government of Canada. (2021, November 29).

Emerging trends in drilling and blasting technology

to enhance efficiency, economy and environmental safety. Generally, modern opencast mines are larger and deeper than the earlier operations, giving rise to a higher percentage of overburden, thereby requiring greater blasting area. Solutions to these problems call for in-depth understanding of the basic parameters involved in the process of ...

A Guide To The Essential Tools for Blasting in Opencast Mines

Blasting operations are a crucial aspect of opencast mining, essential for efficient extraction and processing of minerals. To execute these operations safely and effectively, miners rely on a ...

Water and energy assessment for dewatering in opencast mines

A dewatering system of an opencast mine has parallel pumps to remove mine water for accessibility of production. The mine water increases with the increase in pit area and depth. The objective of this work is to predict the water removal rate and energy requirement for water pumping in opencast mines and analyse the variations with the depth as ...

High angle conveying in opencast mines can be green, efficient …

High angle conveying in opencast mines can be green, efficient, economic and flexible. July 2021; Journal of Mines Metals and Fuels 69(5):141; ... easily concluded that with an increase of mine ...

Optimization of blasting parameters in opencast mine with

The artificial neural network is an expert system which became more popular recently after advancement in computing power. A neural network is loosely based on the neural connections and workings of our own human brain. It consists of a number of nodes and connections which form …