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Mining Methods - SlideShare

PlotMaker Mining Methods Blackout day presentation - 5 th December 2008 VENKAT M. Team Lead – Minex, INDIA ... sir can u explain punch longwall please.. by the way useful info. thanx for such ppt ... Highwall Mining 63. Punch Longwall

Monitoring and Stability Assessment of a Punch Longwall ...

A continuous highwall mining system (CHM) was used to develop the roadways for a proposed punch longwall operation at Kenmare 2. The aim of the research project was to monitor, evaluate and model the roadway performance during the initial roadway driveage and subsequent widening using CHM.

Punch Longwall Mining | Introduction | underground …

punch longwall mining Punch Longwall Mining This is a rather specialized type of mining which is only applicable where a seam is exposed at the highwall of an open cut mine which has reached the economic limit for open cut mining.

Longwall |authorSTREAM

Direction of retreat FACE Bottom Gate TOP Gate LONGWALL GENERAL LAYOUT Dip direction Longwall mining method includes drivage of two long roadways in coal and joining them at the end by a perpendicular drivage forming a face. ... Punch Longwall - Developing longwall panels directly off high walls of OC .

GREGORy CRinuM MinE - CRinuM nORTH COAL …

The mine is a punch Longwall Mining Operation driven from the J Block Highwall. The design comprises of seven longwall panels, with each of the initial four longwall maingates comprising of two portal ... MinE - CRinuM nORTH COAL DRivEAGE …

long wall mining method - hardrockintrl.com

Punch Longwall Mining; Figure opposite shows a general layout of punch longwall mining. The aim of this method is to mine coal form the highwall of an open cut operation, in which the stripping ratio is far outweighs the production cost of …

MODERN MINING TECHNOLOGY FOR COAL …

MODERN MINING TECHNOLOGY FOR COAL EXTRACTION Chandrani Prasad Verma Dr. John Loui P ... as two punch longwall operation is independent of each other ... Here Punch Longwall mining is the means of secondary extraction of coal CASESTUDY IN AUSTRALIA. LONGWALL TOP COAL

Punch Multi-slice Longwall Mining System for …

30 Punch Multi-Slice Longwall Mining System for Thick Coal Seam under Weak Geological Conditions A new multi-slice top coal caving mining method based on the concept of punch longwall and top coal caving methods is proposed. The concept of …

longwall ltcc afc - namesprojectsouthflorida.org

longwall ltcc afc. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including quarry, aggregate, and different kinds of minerals.

Longwall Mining - SlideShare

Retreat Longwall Mining Disadvantages Over Advance Longwall Mining Delay in getting production for the preparation of first panel. 27. ... Punch Longwall - Developing longwall panels directly off high walls of OC 118. Punch Longwall …

Punch Longwall Mining ~ Mining Engineering Science

May 26, 2017· The contents of this article is a collection of science Mining Engineering, which aims to share insights with the activists and searchers of the world of mine science both students and the general public.

Effect of Punch Longwall Retreat on Highwall …

2016 Coal Operators' Conference The University of Wollongong 10 –12 February 2016 509 EFFECT OF PUNCH LONGWALL RETREAT ON HIGHWALL STABILITY Luke Clarkson1 Abstract: Punch longwall mining takes advantage of the final highwall exposure in an open cut coal mine, driving gateroads straight into the targeted coal seam then …

punch longwall mining method advantages - …

Shortwall Mining. This method of mining was developed in the late 1960's to take advantage of the then recent development of suitable hydraulic longwall supports, coupled with the productivity and low capital cost of continuous miners and shuttle cars.

Australian LongWalls - LongWall

Mines Period January 2011 – December 2011 Prepared by: Ken Cram & Carol Mische, Coal Services Pty Limited – Febuary 2012 Click on mine name for details

Punch Longwall Mining - LongWall

Figure opposite shows a general layout of punch longwall mining. The aim of this method is to mine coal form the highwall of an open cut operation, in which the stripping ratio is far outweighs the production cost of coal mined.

Longwall Mining Overview | Introduction | underground …

punch longwall mining ; shortwall mining; alternative shortwall mining method - gretley colliery ... The modern longwall face is supported by hydraulically powered supports and these supports are progressively moved across to support the newly extracted face as slices are taken, allowing the section where the coal had previously been excavated ...

joy mining in sccl for longwall mining technology

joy mining in sccl for longwall mining,chain dryer machine for insulator - chain linbelt rs16 bx2 120 10 ft for coal mining longwall top caving coal mining technology in india joy mining in sccl for longwall mining technology, chain linbelt rs16 bx2 120 10 ft for coal mining.

Mine Punch Out - YouTube

Jun 23, 2011· This is a miner punching out of the hill at a coal mine in Mingo County, WV.

longwall mining method ppt – Grinding Mill China

longwall mining method ppt [ 4.8 - 7718 Ratings ] The Gulin product line, consisting of more than 30 machines, sets the standard for our industry. We plan to help you meet your needs with our equipment, with our distribution and product support system, and the continual introduction and updating of products. ... punch longwall mining method ...

The Singareni Collieries Company Limited (A …

The Singareni Collieries Company Limited (A Government Company) PRESENTATION ON EXTRACITON OF STEEP SEAMS ... are mined by Longwall mining – a bulk production but capital intensive ... HIGH WALL MINING 5. PUNCH LONGWALL Existing technologies. C) LONGWALL MECHANIZATION 1. CONTINUATION IN THE …

Investor Presentation - Ouro Mining Inc

Mining: Punch longwall with continuous miners for gateroad development LW currently planned at 125m face with potential to expand to 250m faces Planned production rate over a 20 year DFS Mine Plan 53Mt in place –

long wall mining method - victorygardensdc.org

long wall mining method. ... Augur (or Punch) Mining A form of unmanned underground mining offering minimal capital cost and relatively short start up periods. Large augers or remote-controlled mine equipment bore into coal seams from roadways established on the floor of surface exposures.

longwall punch mining system - igas.be

Punch Longwall Mining. This is a rather specialized type of mining which is only applicable where a seam is exposed at the highwall of an open cut mine which has reached the economic limit for open cut mining. Contact Supplier longwall mining …

Coal companies of Australia - Wikipedia

Broadmeadow Mine, BMA's newest punch longwall underground operation on the Goonyella Riverside lease, commenced longwall mining in August 2005. Broadmeadow Mine is located 30 km north of Moranbah and 190 km south west of Mackay and has the capacity to produce over three million tonnes of high quality coking coal a year.

Standing support alternatives in western United …

placed on these supports by longwall mining, coupled with ... ate contuct layer. the crib blocks will punch into the Can and initial capacity of the Can will be reduced to that ... Standing support alternatives in western United States longwalls NIOSH ...

MODERN MINING TECHNOLOGY FOR COAL …

MODERN MINING TECHNOLOGY FOR COAL EXTRACTION Chandrani Prasad Verma Dr. John Loui P Dr. N. R. Thote ... as two punch longwall operation is independent of each other ... Here Punch Longwall mining is the means of secondary extraction of coal CASESTUDY IN AUSTRALIA.

longwall punch mining system - primaryteachers.in

Punch Multi-slice Longwall Mining System for Thick … Most of coal is produced from open-cut mines in Southeast Asian countries. However, the conditions of their surface mines are worsening each year: the stripping ratio ...

punch longwall mining method advantages - stari …

machine punch for mining. machine punch for mining - crusherasia Punch mining system - ProductsBulk materials handling, punch longwall mining method advantages . read More advantages and disadvantages of stone crusher

miningst.com

LONGWALL PUNCH MINING FROM OPEN CUT HIGHWALLS By Bruce W. Robertsonl, Greg O'Regan2 and Mark McKew3 ABSTRACT 'Rapid access longwall mining' or 'longwall punch mining' is a proposed extraction method whereby longwall gate roads are driven into a seam directly from an opencut highwall. The

The Dangers in Longwall Mining - popularmechanics.com

Modern longwall mining was introduced to the U.S. in the 1950s, and now more than 100 such mines, mostly in central Appalachia, …

punch longwall - Mining Magazine

Power chains. As longwall cut-and-load speeds increase, face conveyors have to keep pace, including thicker chains...

GrEGOry CriNUM MiNE - CriNUM NOrTH STONE …

Scope of WorkS The Gregory Crinum Mine is located approximately 50 kilometres north east of Emerald. Crinum North is a punch Longwall Mining Operation driven from the J …