Study on shearer drum structure design and coal-breaking
umns of the mining face, Su (2019) used the comprehensive expansion technology of expansive agent and coal mining machine to break hard rock. The mining results …
Evaluation of the Effect of Fault on the Stability of
Appropriate evaluation of the effect of the fault on the stability of the underground workings is a requisite for safe design of the underground mining structures. In this paper, a study has been carried out to assess the effect of the fault on the stability of underground coal mines by numerical simulation with distinct element method (DEM).
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Regional Institutes | Central Mine Planning & Design Institute
Central Mine Planning & Design Institute Limited Regional Institute - I West End, G.T.Road Asansol - 713 301 (WB), India Tel: +91 341 2253504 Fax: +91 341 2250935 email: rdri1[dot]cmpdi[at]coalindia[dot]in: Central Mine Planning & Design Institute Limited Regional Institute - II Koyala Bhawan, Koyla Nagar Dhanbad - 826 005 (Jharkhand), India
Properties and Application of Backfill Materials in Coal …
The distance from the roof of the coal seam to the floor of the aquifer is 52.3 m. The coal thickness is 21 m, but the design mining height is only 2 m, and many coal pillars were set up to prevent water inrush so …
Mechanical Model of Underground Shaft Coal Pocket and
In order to provide a theoretical basis for the design of underground shaft coal pocket and support parameters in coal mines, a mechanical model and a dynamic analysis of the silo wall are established based on the engineering background of Ganhe Coal Mine. The numerical calculation is carried out by using the new model. The back …
Longwall top coal caving design for thick coal seam in very poor
Fully mechanized LTCC mining method is a good recovery for ultra-thick coal seams especially seams above 7 m. Developing technologies increases the recovery rate for LTCC more than working in slice panels (Wang et al. 2015).Different drawing alternatives effect the recovery rate of the top coal as also outlined by Wang et al. (), and it proposed …
Coal mining | Definition, History, Types, & Facts
Coal mining, extraction of coal deposits from the surface of Earth from underground. Coal has been used since the Bronze Age, 3,000 to 4,000 years ago, and was the basic energy source that fueled the …
A precise TIN clipping algorithm for the digital mining design of …
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 …
Green infrastructure: a planning concept for the urban
Green infrastructure is a concept aimed at realizing a strategically planned network of valuable natural and semi-natural areas, designed and managed to deliver a wide range of ecosystem services and to protect biodiversity in rural and urban settings. In the general post-mining context of China and Germany, this paper suggests and outlines an …
Schissler AP (2004) 485-494 Coal Mining, Design and …
strip mining A surface system of mining that removes coal in rectangular and parallel pits. The design and methods of coal mining is made up of the use of land, labor, and …
Review and Challenges in the Geophysical Mapping of Coal Mine
Generally, the water-bearing structures of coal mines mainly include coal seam, roof, coal seam, floor, and goaf, while the main water-conducting structures include faults, collapsed columns, and collapsed goaf areas. The most commonly used methods for the detection of the above structures include the seismic method, high-density electrical …
Phase Planning for Open Pit Coal Mines through Nested Pit
This paper presents a phase planning method specially designed for coal deposits with nearly horizontal, bedded coal seams. The geology of this type of deposit is modeled into a column model, instead of a block model, to avoid coal-rock mixing in blocks. A nested pit generation algorithm is developed for producing a series of nested, least …
Coal Mining and Processing
The U.S. coal industry serves a vital role in the nation's economy by producing fuel for more than half of its electricity. Despite the industry's importance, industry financial data for 2005—the strongest year for the coal industry in recent years—shows that it is a relatively small industry with revenues totaling $20 billion to $25 billion and net income between $1 …
Design of Surface Mine Haulage Roads
However, safe road design criteria should be sufficiently comprehensive to allow application to all machine types. This complication required that design criteria be based on the one type of surface mining equipment that exhibits the lowest safety potential. Research of engineering data for all major types of surface mine machinery revealed
OPERATION AND MAINTENANCE OF CRUSHER HOUSE …
Table 1: India Coal Grades Details Crusher A crusher is a machine designed to reduce large Coal into smaller Coals, gravel, or rock dust. crushers are machines which use a metal surface to break or compress materials. Mining operations use crushers, commonly Figure 1: Coal Handling Plant
Pros & Cons of Coal Energy | Sciencing
Pros of Coal Use. Coal has three primary advantages compared to other fuel sources, both non-renewable and renewable: abundance, affordability and low capital expense needed to build coal-powered generation plants. Coal deposits can be found in over 70 countries around the world, with estimates on global reserves of just under 1 …
Research on Mine Safety Monitoring System Based on WSN
Therefore, it has momentous practical significance to apply this new technology and new method in the design of coal mine Safety Information System[1]. 2. STRUCTURE OF THE SYSTEM This paper designed a mine safety monitoring system, It is based on ZigBee2007 wireless communication protocol, adopts the CC2530 chip …
Study on shearer drum structure design and coal-breaking
The mining eciency helps the miners to provide the same amount of output by using minimum input. Meanwhile, in the mining site, the mining efficiency improves the eciency of haul truck drivers with minimum energy and fuel. It can also mean that mining operators can monitor more equip-ment simultaneously. As a result, complicated seams fre-
Retrofitted carbon capture and storage for negative emissions in …
The relatively new fleet of coal-fired power facilities in China is expected to lock in substantial carbon dioxide (CO 2) emissions for the next several decades.Coal–biomass co-firing power ...
Coal
Global coal consumption reached an all-time high in 2022 and the world is heading towards a new record in 2023. Global coal demand reached a record high in 2022 amid the global energy crisis, rising by 4% year-on …
Studio Prize: Mining Appalachia | Architect Magazine
Situated at an abandoned coal mine in West ia, the property is rich with historic industrial structures, and the students were encouraged to use these as precedents to inspire their own detail-focused designs. Investigation: Dating back to the late 1800s, the riverside mining complex in Nuttallburg, W.Va., is an industrial ghost town. …
Study on the characteristic of overburden rock structure and …
The coal seam is in a monoclinic structure with an inclination angle of 5°–10°.The 1202 working face picks up the upper layer of a coal seam, while the 1200-2 working face picks up the lower ...
Construction and application of a high precision 3D simulation
The high-precision 3D simulation model for geomechanics of a complex coal seam is the necessary premise for the research on intelligent shearer and unmanned mining. However, at present, a ...
(PDF) Surface Mine Design
surface mining methods; open pit planning and design; open pit terminology; stripping ratio; factors governing strip mining; calculation of overburden ratio; initial data collection checklist ...
Design of Haul Roads in Open Cast Mines in India—A Mechanistic Design
About 80% of total mining in India is carried out in coal sector through open cast mines where heavy dumpers are plying on the haul roads. Mine haul roads have witnessed an enormous increase in traffic density as well as hauling payloads in the recent past due to increase in coal mining activities. In the Indian scenario, the majority of …
Coal Mine Structures | SpringerLink
Coal Mine Structures is based on a six-year study, carried out at the University of Newcastle upon Tyne between 1976 and 1982 and financed by the National Coal Board …
Coal | Geoscience Australia
Coal is a combustible rock mainly composed of carbon along with variable quantities of other elements, mostly hydrogen, sulphur, oxygen and nitrogen. Coal occurs as layers, called coal beds or coal seams, that are found between other sedimentary rocks. Coal is slightly denser than water but less dense than most of the rocks of the Earth's crust.
Numerical investigation of impacts of geological faults on coal …
In addition, although a regional scale mobilisation of a fault plane due to coal mining is unlikely to occur, many local issues can be expected when the mining takes place in close vicinity of such structures (Galvin 2016; Iannacchione and Tadolini 2016; Vardar et al. 2018). The clamping forces on a fault plane reduce as the mining activity ...
STRUCTURE magazine | Building Above …
A coal seam is considered mineable by underground methods when it is at least 30 inches thick. Because of the number of mineable seams in West ia and Pennsylvania, these states contain the most areas with …