Welcome to visit us!

[email protected]
Online service

Anytime 24/7

How to find us

Zhengzhou High-tech Zone, China

MENU
MENU
NEWS
  1. Home
  2. >
  3. Alex-Grinding-Machine

Alex-Grinding-Machine

Bord and pillar mining Next This diagram shows the traditional method of bord and pillar mining Miners first extracted coal along roadways or bords while the coal in between the bords acted as pillars holding up the roof Then the outer pillars were mined leaving the roof to collapse in a controlled way as miners retreated to the exit

Get a Quote Send Message

Hot Products

Please Leave A Message

More Details

Bordandpillar mining in inclined orebodies
Bordandpillar mining in inclined orebodies

improved productivity Mechanized bordandpillar mining is thus considered as a supplement to conventional mining which accounts for the majority of current mining operations on Amandelbult Bordandpillar mining is applicable to horizontal to flat dipping thin tabular orebodies where the surrounding hangingwall and the ore itself are

Learn More
Bordandpillar mining explained  Illawarra Mercury
Bordandpillar mining explained Illawarra Mercury

May 31 2017 · Bordandpillar mining is used in first workings of a deposit and when irregularly shaped deposits or sensitive environmental conditions call for a lighter touch This method is used at Wongawilli after the longwall miner was buried in a roof collapse Longwall mining is newer and revolutionised coal mining

Learn More
Mining Weekly  No future for conventional mining methods
Mining Weekly No future for conventional mining methods

Nonetheless he highlighted that South Africa did have mechanised mines but that they mostly used the bordandpillar mining method with lowprofile mining technologies which were mostly imported

Learn More
Mechanised mining in the spotlight  Miningmx
Mechanised mining in the spotlight Miningmx

Jul 16 2010 · “In the context of the types of support designs applied in bord and pillar mechanised mining and other methods for that matter “one size definitely does not fit all’’ According to Shepherd “a new more stringent blanket support ruling would almost certainly lead to reduced extraction rates lower efficiency lower production and higher costs at affected mines’

Learn More
Bord and Pillar mining
Bord and Pillar mining

Our cutting tools for bord and pillar mining fit either continuous miners or roadheader machines They feature a hardened steel bodyshank fitted with a wear and impact resistant tungsten carbide tip Depending on the application we also

Learn More
LV 08  Design of Pillar Support System for TM3 at Depth I
LV 08 Design of Pillar Support System for TM3 at Depth I

Although the use of mechanised bordandpillar type mining with pillar support is common in the shallow 500m below surface bushveld chrome mines the platinum mines have traditionally employed narrowwidth scraper mining as their stoping method using pillars and

Learn More
PDF Underground Mining Methods Room and Pillar method
PDF Underground Mining Methods Room and Pillar method

 It is the most common supported pillar method designed and used primarily for mining flatlying seams or tabular orebodies or gently dipping bedded ore deposits of limited thickness like

Learn More
EVALUATION OF BORD AND PILLAR MINING SYSTEM IN
EVALUATION OF BORD AND PILLAR MINING SYSTEM IN

EVALUATION OF BORD AND PILLAR MINING SYSTEM IN MCL COAL MINES A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF Bachelor of Technology In Mining Engineering By RAM CHANDRA NAYAK 10605015 SANGRAM KESHARI DALAI 10605027 Department of Mining Engineering National Institute of Technology Rourkela

Learn More
Room and pillar mining  Wikipedia
Room and pillar mining Wikipedia

This means that today room and pillar mining is mostly used for high grade but small deep deposits Disadvantages Due to a recovery rate as low as 40 in some cases room and pillar mining cannot compete in terms of profitability with many modern more mechanized types of mining such as Longwall or surface Abandoned mines have a tendency to collapse

Learn More
Mechanisation in Indian underground coal mines rock
Mechanisation in Indian underground coal mines rock

Mechanised mining using Continuous Miner CM bord and pillar sections has been successfully introduced into Indian coal mines for more than a decade This milestone was possible only with the concurrent introduction of advanced technology with rock bolting to provide reliable safe support

Learn More
Ppt For Continuous Mining In Bord And Pillar
Ppt For Continuous Mining In Bord And Pillar

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

Learn More
Board  Pillar  Coal Colliery and Mining Forum
Board Pillar Coal Colliery and Mining Forum

Mar 24 2013 · All the mines Ive worked in using Bord and Pillar were mechanised BGs Marblaegis Mine used drill rigs faces were drilled fired and mucked out using Wagner Scoop Trams LHDs They now use Joy continuous miners

Learn More
Bord  Pillar  Mining Science and Technology
Bord Pillar Mining Science and Technology

As bord and pillar workings are developed roof support becomes a major consideration and operating cost item Support requirements vary considerably and are dependent on the physical conditions in the seam which are often depth dependent and the length of

Learn More
Case Studies of Tendon Support Design In Bord And Pillar
Case Studies of Tendon Support Design In Bord And Pillar

Abstract Southern African underground Platinum and Chrome Mines exploit the tabular platinum and chromebearing orebodies using either conventional mining methods making use of jackhammers and air legs mechanized bordroom and pillar mining layouts or a combination of the two locally referred to as Hybrid mining methods

Learn More
BORD AND PILLAR METHODpptx  Under Ground Mining
BORD AND PILLAR METHODpptx Under Ground Mining

Roomandpillar mining is the most common unsupported method used primarily for flatlying seams or bedded deposits like coal trona limestone and salt

Learn More
Cutting and bolting tools  Sandvik Mining  Rock
Cutting and bolting tools Sandvik Mining Rock

Sandvik offers a wide range of extremely productive and reliable continuous miner cutting tools for bord and pillar mining Cutting tools for roadheaders and miners Sandvik has a wide selection of highly productive conical mining tools for roadway development

Learn More
Major Mines  Projects  SAEC Mine
Major Mines Projects SAEC Mine

Coal mining of the 1 m thick seams is primarily carried out by Cat 993 or 994 loader and Cat 785 rear dump haul truck which is well proven method of coal operations The Klipspruit is predominantly an underground bord and pillar mining operation with small open pit operations which is planned to be completed around December 2014

Learn More
200501 Change over from Board and pillar TCut to
200501 Change over from Board and pillar TCut to

200501 Change over from Board and pillar TCut to Dip pillar 4 19 Mining method proposal 20002001 Bord and Pillar Introduction During the later part of 2000 the Global conditions changed to such a extent that mining the UG2 became very lucrative and a

Learn More
Room and Pillar Mining Method  SlideShare
Room and Pillar Mining Method SlideShare

Oct 22 2014 · Room and Pillar Mining Method 1 Hassan Z Harraz hharraz2006 2014 2015 This material is intended for use in lectures presentations and as handouts to students and is provided in Power point format so as to allow customization for the individual needs of course instructors

Learn More
Design of Bord and Pillar method in coal mines
Design of Bord and Pillar method in coal mines

Feb 27 2016 · Design of Bord and Pillar method in coal mines 1 Design of BORD AND PILLAR method in coal mines AASHUTOSH CHHIROLYA MINING 6TH SEM AKS UNIVERSITY SATNA MP 2 INTRODUCTION The importance of mining is definitely significant to human civilization

Learn More
Ribsnook petency in mechanised depillaring of the
Ribsnook petency in mechanised depillaring of the

The stability of a natural support like pillar fender ribsnook is fundamental for the success of a bord and pillar mining In fact the stability of these supports becomes more important at the

Learn More
DMR backs down on Aquarius  Miningmx
DMR backs down on Aquarius Miningmx

Jul 20 2010 · “In the context of the types of support design applied in bord and pillar mechanised mining and other methods for that matter “one size definitely does not fit all’’ That’s a reference to the fact that the DMR apparently based its directive on steps taken by Implats to reduce bord widths to six metres last year after a rockfall at its 14 Shaft

Learn More
Optimising underground coal mining  Miningreview
Optimising underground coal mining Miningreview

Oct 28 2009 · The LCM methodology uses a similar continuous miner equipment set as used in bordandpillar underground mining but changes the way the equipment is assembled operated and sequenced It allows for cutting machine utilisation to be increased from about 30 to above 60 depending on mining conditions

Learn More
PTM considers transition to hybrid mining method at
PTM considers transition to hybrid mining method at

The proposed change in the primary mining method will result in a move away from the current highervolume mechanised bordandpillar mining method to a process involving mechanised access drives

Learn More
Bord And Pillar Mining Equipment
Bord And Pillar Mining Equipment

bord and pillar mining Newest Crusher Grinding Mill bord and pillar mining Room and pillar mines Mining Techniques Underground Mining Room and pillar is also known as bord and pillar is a mining system in which the mined material is taken out across a horizontal plane while leaving pillars of

Learn More
Optimisation of a Mechanised Platinum Mining Section
Optimisation of a Mechanised Platinum Mining Section

Optimisation of a Mechanised Platinum Mining Section by CHRIS EVAN FRANKLIN • Allowing the mine to achieve trackless mechanised stoping at heights below 12m with after converting the XLP section from a Room Pillar layout to a Breast layout and employing longer panels 2125m the XLP section finally achieved the target performance

Learn More
bord and pillar mining equipment  rodiziogrillbe
bord and pillar mining equipment rodiziogrillbe

Bord And Pillar Mining India Henan Mining Machinery and Bord And Pillar Mining India Prompt Caesar is a famous mining equipment manufacturer wellknown both at home and abroad major in producing stone crushing equipment mineral separation equipment limestone grinding equipment etc Price Bord and pillar working with LHDSDL SlideShare

Learn More
and pillar mining equipment
and pillar mining equipment

Room and pillar mines Mining Techniques Underground Room and pillar Room and pillar is also known as bord and pillar is a mining system in which the mined material is taken out across a horizontal plane while leaving pillars of unscathed material to support the overstrain leaving open regions or rooms underground

Learn More
Mechanized face drilling and bolting  Mining
Mechanized face drilling and bolting Mining

We offer a wide range of premium quality mechanized face drilling and bolting tools Our face drilling and bolting products include a shank adapter coupling drifter rod and bitreaming bit all manufactured for long life and to increa se your productivity

Learn More

The Latest News