Ppt For Continuous Mining In Bord And Pillar

bord and pillar coal mining ppt - casaramosbe

bord and pillar coal mining ppt ppt for continuous mining in bord and pillar - Gold Ore Crusher 20121119- Coal Mining Technologies Presentation bell-pits or other Get Price And Support Online; EVALUATION OF UNDERGROUND COAL PILLAR EVALUATION OF UNDERGROUND COAL PILLAR DESIGN The most important aspect of Bord and Pillar mining is the

Room And Pillar Coal Mining Ppt - ilcapriccio-falisollebe

PPT Mining Coal PowerPoint Presentation ID:1539093 Mining Coal F ossil fuel used primarily for electricity generation in the United States Traditional Coal Mining Methods Underground Coal Mining Historic –Tunnels following coal seams Modern Room and Pillar Mining

Bord and Pillar mining by continuous Miner in HINDI - YouTube

Nov 05, 2017 · This video provides a basic description of the room & pillar mining method for extracting coal underground It includes an explanation of the different products presents : …

Continuous miner - SlideShare

Continuous Miner Continuous miner is a mass production technology for underground mining that can be used in bord & pillar (room & pillar) rib pillar and shortwall methods Continuous miner has been adopted for bord & pillar method in Anjan Hills/ NCPH of SECL and in Tandsi Mine of WCL

bord and pillar coal mining ppt - Cutting Head

31 Oct 2013 productivity improvement; lean manufacturing; underground coal mine; bord and pillar mining method; side discharge loader (SDL); lead distance 1 INTRODUCTION India has emerged as the third largest coal producer in the world after China and USA with a 9% share of the total glo- …

Continuous miners - Sandvik Mining & Rock Technology

Sandvik MC470 continuous miner is the ideal choice for room and pillar coal mines, salt and potash mines, and other operations that demand the highest cutting force The miner effectively integrates proven technologies to offer high advance rates under tough mining conditions and in restricted spaces

Increasing Production Time in Continuous Mining Methods

to Kendal Power Station at full production The method of mining is underground bord and pillar with continuous miners and shuttle cars The mine is situated approximately 19 kms off the N12 highway and some 80kms east of Johannesburg GEOLOGY Khutala is placed on the Bombardie and Cologne farms and is part of the Witbank coal fields

Coal Mining Methods - EMFI

The “continuous” version of room-and pillar mining is the most common, representing more than half of all underground production In this method, a continuous mining machine excavates the coal and loads it onto a conveyor or shuttle car in a single step Despite the term “continuous,” the machine operates only part of

room and pillar coal mining ppt - ugcnetnic

Room and pillar mining - Wikipedia 2018-10-31 Room and pillar (variant of breast stoping), also called pillar and stall, is a mining system in which the mined material is extracted across a horizontal plane, creating horizontal arrays of rooms and pillars

Room and pillar mining - Wikipedia

Room and pillar (variant of breast stoping), also called pillar and stall, is a mining system in which the mined material is extracted across a horizontal plane, creating horizontal arrays of rooms and pillars The ore is extracted in two phases

CONTINUOUS MINERS - SlideShare

INTRODUCTION : Continuous mineris a machine used for cutting and loading of coal used in underground Board and Pillar mining operation The JOY continuous minerproduct line has been developed to meet the high productivity requirements of today's underground mining industry 3

room and pillar coal mining ppt - ugcnetnic

Room and pillar mining - Wikipedia 2018-10-31 Room and pillar (variant of breast stoping), also called pillar and stall, is a mining system in which the mined material is extracted across a horizontal plane, creating horizontal arrays of rooms and pillars

Design of Bord and Pillar method in coal mines - SlideShare

One of such methods is the Bord and Pillar method of mining Bord and Pillar method of mining is one of the oldest methods 3 INTRODUCTION In India, about 98% of underground output of coal is obtained by Bord and Pillar method and barely about 2% by longwall methods

power point presentation on board and pillar mining

Bord-and-pillar mining in inclined orebodies - SAIMM Bord-and-pillar mining in inclined orebodies Reduce mining costs by increasing the production tonnage …

Gr5finalUnderground Mining Method Ppt | Mining | Economic

Coal Mining Metal Mining Bord and Pillar Unsupported Mining Supported Mining Caving mining Longwall Room and Pillar Cut and fill Longwall Blasting galllery Stope and Pillar Stull Sublevel caving Shrinkage Square set Block caving Sublevel Longwall mining method: • Complete removal of the entire seam in one operation

(PDF) Success of Continuous Miner in Bord and Pillar Method

This paper deals with the use of continuous miner and its success in bord & pillar method of underground coal mining Discover the world's research 15+ million members

UNDERGROUND COAL MINING: FACTORS, COST, AND TIME

• Pillar sizes will generally range from 30 to 100 feet and have a rectangular configuration • Extraction Ratio is the ratio of coal removed compared to estimated in-place tonnage – normal extraction ratio is from 35 to 55% – retreat mining will result in extraction ratios of up to 70%

COAL MINING TECHNOLOGY - e-library WCL

BORD & PILLAR MINING •Currently, most of CIL mines using Bord & Pillar remove coal from the face by blasting & deploy SDL or LHD for loading and transportation of coal in the active mining areas •Coal transportation to surface is either by a series of belt conveyors or rope haulage drawn coal tubs

Bord-and-pillar mining in inclined orebodies - SAIMM

mechanized bord-and-pillar mining layout for a given piece of ground (Vlakpoort and Moddergat) using a given selection of machines This piece of ground contains the PGM bearing UG2 Reef with an average thickness of 124 cm and dipping at 18° with adverse strike and dip changes Two bord-and-pillar layouts were designed for this area

Pillar Extraction using Continuous Miners | Introduction

PILLAR EXTRACTION USING CONTINUOUS MINERS Overview Now that longwall equipment has been developed to a stage where it is able to cope with most conditions satisfactorily, longwall mining is the most widely used method of secondary extraction However, there are still mines and occasions where longwall mining is not suitable eg

typical oreflow system in a bord and pillar coal mine

underground mining bord and pillar - , underground mining bord and pillar Room and pillar mining - Wikipedia Room and pillar (variant of breast stoping), also called pillar and stall, is a mining system in which the mined material is extracted across a horizontal plane, creating horizontal arrays of …

Continuous miner cutting tools - miningdevibpsandvik

We offer a wide range of continuous miner cutting tools for bord and pillar mining that increases your productivity in the most demanding conditions Extremely productive and reliable, they are used for full-scale production in bord-and-pillar operations

EVALUATION OF BORD AND PILLAR MINING SYSTEM IN …

Bord and Pillar method of mining Bord and Pillar method of mining is one of the oldest methods of mining The success of Bord and Pillar mining is selecting the optimum pillar size If the pillars are too large, then the extraction ratio decrease leading to less production and profitability and if …

Bord & Pillar Method | Mining | Coal Mining - Scribd

Gallery (bord) 2Basic parameters of bord and pillar mining system 1 Pillar 3 Junction Calculation of percentage of extraction during development • If coal from the full seam thickness is extracted the percentage of extraction during development is nearly 20% in deep mines and 35% in shallow mines 5 m and preferably 1

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ppt for continuous mining in bord and pillar Gold Ore Crusher ppt for continuous mining in bord and pillar Coal Lectures Series Mining Technology Presentation Live …

bord and pillar coal mining ppt - Roadheader Cutting Machine

bord and pillar coal mining ppt - arisesolution bord and pillar coal mining ppt - , Underground mining of thick coal seams (PDF Download Available) 3 Nov 2015 Bord and pillar in India adopted induced caving of roof

Gr5finalUnderground Mining Method Ppt | Mining | Economic

Coal Mining Metal Mining Bord and Pillar Unsupported Mining Supported Mining Caving mining Longwall Room and Pillar Cut and fill Longwall Blasting galllery Stope and Pillar Stull Sublevel caving Shrinkage Square set Block caving Sublevel Longwall mining method: • Complete removal of the entire seam in one operation

typical oreflow system in a bord and pillar coal mine

Ppt For Continuous Mining In Bord And Pillar Gold Ore Crusher mining bord and pillar mine design in coal mines Power typical oreflow system in a bord and More Info Room and pillar mining - Wikipedia The room and pillar system is used in mining coal, while in Bord & Pillar, A Maryland coal mine from 1850

power point presentation on board and pillar mining

bord and pillar coal mining ppt - artsclubinstitutein power point presentation on board and pillar mining power point presentation on board and pillar miningroom and pillar coal mining pptppt for continuous mining ,

Bord-and-pillar mining explained | Illawarra Mercury

Bord-and-pillar mining is used in first workings of a deposit, and when irregularly shaped deposits, or sensitive environmental conditions, call for a lighter touch

Bord and Pillar mining - Sandvik Mining

Our cutting tools for bord and pillar mining fit either continuous miners or roadheader machines They feature a hardened steel body/shank fitted with a wear and impact resistant tungsten carbide tip Depending on the application, we also offer conical or radial configurations

(PDF) Success of Continuous Miner in Bord and Pillar Method

One of the answers to increase both production and productivity is to use continuous miners Continuous miners are being thought of as part of appropriate technology in India

Room-and-pillar mining | coal mining | Britannica

In coal mining: Development of continuous mining …loading, developed in association with room-and-pillar mining The oldest of the basic underground methods, room-and-pillar mining grew naturally out of the need to recover more coal as mining …

EVALUATION OF BORD AND PILLAR MINING SYSTEM IN …

Bord and Pillar method of mining Bord and Pillar method of mining is one of the oldest methods of mining The success of Bord and Pillar mining is selecting the optimum pillar size If the pillars are too large, then the extraction ratio decrease leading to less production and profitability and if …

Hood Type Dust Control Systems on Continuous Miner (CM) …

Continuous Miner (CM) in an Underground Bord and Pillar Coal Mine The changing and stricter regulatory environment has caused the mining industries in South Africa to re-look at their individual mine health and safety departments In 1997, after the report of …

Conical - miningtestibpsandvik

ROCK TOOLS > BORD AND PILLAR MINING CONTINUOUS MINER CUTTING TOOLS Conical Sandvik Mining supplies a comprehensive range of equipment, tools, services and solutions that help the global mining industry excavate, transport and process ore, safely and productively

room and pillar method coal mine

Bord-and-pillar: Bord-and-pillar, or room-and-pillar, is the oldest underground mining technique and was common in NSW before longwall mining began in the 1960s This method uses a grid of tunnels and involves progressively cutting panels into the coal seam whilst leaving behind pillars of coal to support the mine

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bord and pillar coal mining ppt - centralacademyschool Bord and Pillar mining by continuous Miner in HINDI - YouTube Jul 29, 2016· Bord and pillar is an underground mining method for extracting coal from belowground of earth Various machinery combinations are used for extracting One of the combination is the continuous miner and