Dragline Dictionary

Version 2.3 01_03_11 Page 1

Second Edition 2011

Dragline Dictionary

Dragline Dictionary

Version 2.3 01_03_11 Page 2

Dragline Dictionary

Second Edition

2011

GBI Mining Intelligence

Dragline Dictionary

Version 2.3 01_03_11 Page 3

Published by

Ground Breaking Innovations Pty Ltd

ABN 60 098 705 410 Unit 2, 53 Brandl St, Brisbane Technology Park, Eight Mile Plains, Queensland, 4113 Australia www.gbimining.com Telephone: +617 31478300 Facsimile: +617 31478305 Email: dragline.dictionary@gbimining.com Chief Executive Officer: Graham Lumley Chief Operating Officer: Trevor Trott Distribution Copies available from publisher Advertising enquiries refer to the publisher

© COPYRIGHT 2011 Ground Breaking Innovations Pty Ltd All rights reserved. Copying or reproduction of this publication in any form, on-selling or re-selling of the contents, or storage in a retrieval system for the purposes of commercial gain constitute a breach of copyright. The publishers of the Dragline Dictionary have exercised the utmost care in the composition of this publication; however, Ground Breaking Innovations Pty Ltd cannot be held responsible for errors, inaccuracies, or omissions resulting from the nature of the information provided or previously published, or through typographical compilation.

Dragline Dictionary

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Dragline DictionaryDragline DictionaryDragline DictionaryDragline Dictionary Second Edition 2011Second Edition 2011Second Edition 2011Second Edition 2011

The First Edition of this dragline dictionary was started in 2005 and first released in 2007. Many hundreds of hours were spent sourcing photos and writing information. It proved to be very popular and was universally recognized as being a tremendous resource for anyone working in any capacity with draglines. We were motivated by the number of new people working in and around draglines not being familiar with the terminology and jargon. This includes operators, supervisors, maintenance people, engineers and managers. All need this resource available at some time. Special recognition is made of the work of Bevin Horton in the early stages. He collated, travelled, photographed and generally provided the foundations to what is now a comprehensive publication. More recently, Jan Eike Sapper has shouldered the organising role and contributions have been made by Trevor Trott. I started working on the dictionary in early 2008. I added a lot of the productivity information and reformatted it firstly to an A4 size and now the A5 size. Three years of work has led to this second edition of the Dragline Dictionary. A number of new entries have been made along with a large number of photos and expanded writing on productivity issues. There will always be variations in terminology across sites and it would be impossible to capture all of these. We do however continue to encourage your input. If there is something not included in this dictionary please send us details and if possible photos. Send to: dragline.dictionary@gbimining.com Wherever we use information and/or photos provided by people outside GBI we will acknowledge this if the entry is printed in future editions. Our aim is to produce the Third Edition in 2013. This is a hard copy of the publication which we think is necessary for people to have available in the field. Like the Cat Handbook® we will continue to produce this in hard copy as an ongoing resource. At some point in the not too distant future we will produce an online version. Graham Lumley CEO GBI

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ContentsContentsContentsContents

2 Way Radio - A Communication System ............................................................ 17

3dDig - Dragline planning software ...................................................................... 18

A Frame - The anchor for the boom and mast ....................................................... 19

Access Stairs - Stairway for entry onto dragline ................................................... 20

AC - Alternating Current ....................................................................................... 21

Air Compressor - Air Supply for Dragline Functions ........................................... 22

Air Conditioner Unit - Cabin - Cooling for the Cabin.......................................... 23

Air Dryers - Extract Moisture from the Compressed Air ...................................... 24

Air Horns - Signal Horns ...................................................................................... 25

Air Hoses - Delivering Compressed Air ............................................................... 26

Air Receiver Tank - Holds the Supply of Compressed Air ................................... 27

Adaptor - Fitted to the Nose of the Bucket ............................................................ 28

Ancillary Equipment - Equipment that is Associated with the Dragline. .............. 29

Angle of Repose - The Degree of Slope of Resting Overburden. ......................... 30

Advance Bench - Bench ahead of the Current Dragline Strip ............................... 31

Anomalous Damage - Damage from an action outside normal operations ........... 32

Anteroom - Room behind the operators cabin ....................................................... 33

Aquila - Monitor (Caterpillar) .............................................................................. 34

Arch - (Bucket) ..................................................................................................... 35

ASL - Actual Suspended Load .............................................................................. 36

Basket - The Bucket Frame ................................................................................... 36

Backblading - Pushing material with the back of a full bucket ............................ 37

Bailing Mud - Digging Mud .................................................................................. 37

Big Muskie - The Largest Dragline ....................................................................... 38

Batter - The Slope of the High or Low Wall ......................................................... 40

BCM / BCY - Bank Cubic Metre / Yard. .............................................................. 41

Bucyrus Erie (Bucyrus International) - BE ........................................................... 42

Bench - The Levelled Area where the Dragline Sits and Operates. ...................... 44

Bench End Wall - Start or Finish of the Pre-strip Bench ...................................... 45

Benchmark - A Measure of Performance and Productivity of a Dragline, Operator or Process. ............................................................................................................. 46

BER - Bucket Efficiency Ratio ............................................................................. 48

Berm - A Mound of Material Placed near the Edges of an Excavation. ................ 50

Blackjack - Heavy Lubricant ................................................................................. 50

Blast - The Area that is Loaded with Explosives and Fired. ................................. 51

Blast Profile - The Shape of the Overburden after a Blast .................................... 52

Block - The Marked out Area the Dragline is Digging ......................................... 53

Boat (Parts Boat) - Sled for Carrying Spare Rigging Parts ................................... 54

Boom - The Structure that Protrudes from the Front of the House ....................... 55

Boom Angle - Angle of the boom from horizontal ............................................... 56

Boom Foot - The lower end of the boom that attaches to the revolving frame ..... 57

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Boom Point Sheaves - The Pulleys that Guide the Hoist Ropes round the Top End of the Boom. .......................................................................................................... 58

Boom Stress - The load put on the boom during operation ................................... 59

Boom Suspension Ropes - The Wire Ropes that Hold and Support the Boom and Load. ..................................................................................................................... 61

Box Cut - The initial excavation that is dug when opening up a new pit .............. 62

Brake Air Isolators - Isolate Air to Brakes ............................................................ 63

Bridge - When the Dragline Builds a Pad / Bench over a Previous Pit Void ........ 64

Bucket - A Tool the Dragline uses to Remove Waste Material............................. 65

Bucket Filling - How spoil moves into the bucket ................................................ 69

Bucket - BE - Bucyrus ......................................................................................... 75

Bucket - CQMS - Central Queensland Mining Supplies ...................................... 76

Bucket - ESCO ...................................................................................................... 76

Bucket - Bradken ................................................................................................... 77

Bucket - P & H ...................................................................................................... 77

Bucket - VR ........................................................................................................... 78

Bucket Factor - Volumetric measure of payload. .................................................. 78

Bucket Arch - Part of the Front Ring of a Conventional Style Bucket.................. 79

Bucket Inertia - The resistance of the bucket to swinging .................................... 80

Bucket Weight - Total in-service weight of bucket. .............................................. 80

Bulldozing (bucket) - Bucket pushing spoil in front of itself and not filling efficiently .............................................................................................................. 81

Bund (normally called Berm) - A Mound of Material Placed near the Edges of an Excavation. ............................................................................................................ 82

Buttress - Support or reinforcing ........................................................................... 83

Cable - Power Lead that Delivers Power to the Dragline ...................................... 84

Cable Access - Roadway for Cable ...................................................................... 85

Cable Boat - A Structure with an Arch that Raises the Trailing Cable ................. 86

Cable Covers - Pipes that Cover the Cable ........................................................... 87

Cable Handling - Moving the Cable either Manually or by Machinery ................ 88

Cable Loops - Storing excess cable ....................................................................... 89

Cable Plug Sled - Boat for Towing Cable and Plug .............................................. 89

Cable Pipes - Enable Cable Access under Roadways ........................................... 90

Cable Plug Stands - Keeps Cable Plugs off the Ground ........................................ 91

Cable Towers - Supporting Cable above Roadways ............................................. 92

Cable Winch - At the Rear of the Dragline for Lifting and Carrying the Cable while Walking ....................................................................................................... 93

Cable Winch Rail - At the Rear of the Machine for Lifting and Carrying the Cable while Walking ....................................................................................................... 94

Cam - The Mechanical Device that Facilitates the Walking Action ..................... 95

Carry angle - The Angle the Bucket is carried at to the horizontal ....................... 96

Carrying Spoil Down the Pit ................................................................................. 96

Carry over the Cable - Swinging a Loaded Bucket over the Cable ....................... 97

Cast Blast - A blast that throws overburden into the mined out strip .................... 98

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Access Stairs - Stairway for entry onto dragline

There are a number of access stairs in and around the dragline. The stairs used most are the access from the ground to the operator’s cabin. Some are air or electrically operated and some are fixed. All personnel must take particular care using the stairs as 25% of all lost time injuries related to the dragline occur getting on and off the dragline. It is every employees responsibility to learn the mine’s procedures for getting on and off and follow them at all times.

Access Stairs

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Air Compressor - Air Supply for Dragline Functions

The air compressors supply high pressure air to activate the braking system. Brakes are attached to all drive motors in the 4 functions, swing, hoist, drag, and propel. There are a couple of safety systems incorporated in the dragline involved with air. If the compressed air supply fails, or gets below a set pressure level, the brakes will set and the excitation will drop, and the machine will come to a stop. There are 2 air compressors supplying air to a large air tank and distributed by pipes to points around the machine, including the boom and mast. The pumps on the lube system also require air to operate. Air is also used during maintenance days to power air tools and air is used as well to blow dust out of the dragline house, the motors, MG sets and other electrical installations.

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Isolation Lockout - A System to Positively Remove Power from the Functions

An Isolation lockout is a safety device to prevent unauthorised movement of the dragline functions while the machine is under repair or maintenance conditions.

There are many methods of isolation and the photos are an example of one of these.

Figure 1 shows the Excitation Isolator locked, then the key to the lock is put into the box in Figure 2.

Personnel working on the machine then used their locks to complete the process.

All mines must have a Safety Management plan and process for Positive Isolation under the existing legislation.

Figure 1

Figure 2

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Revolving Frame - Main Chassis of the Dragline

The revolving frame is the main chassis of the dragline. It sits just above the tub on the swing rollers and rotates as required. All the working machinery, A frame, gantry, mast and boom, and house are all attached to the revolving frame.

Revolving Frame