The Linear Link System

The Linear Link System PowerPoint PPT Presentation


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Identified Industries. Underground long-wall miningOpen Cut Well Head manipulation (oil

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The Linear Link System

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1. The Linear Link System The new Linear Link System was designed to overcome numerous problems with regard to the protection of vital cables in many different industries.

2. Identified Industries Underground long-wall mining Open Cut Well Head manipulation (oil & gas) Submersible Cable handling

3. Product Design The linear Link system has been designed for a range of differing designs pending applications. From rectangular twin pull to elliptical single and double pull variants.

4. The mining industry The following presents the Linear Link System and how it contributes to the mining industry Long-wall Mining

5. Downtime You are the operator of an Australian longwall mine; if something was to cause production at your mine to stop, The cost to you would be measured in millions of dollars per day Article published Oct 07 ; unplanned downtime of equipment at Tahmoor colliery reported to cost Centennial coal mines $1 million per day. Article published Oct 07 ; unplanned downtime of equipment at Tahmoor colliery reported to cost Centennial coal mines $1 million per day.

6. The cable handler The cable handler is that something that could cause mine downtime… Emphasis on vulnerability of shearer cable and hoses, their entire dependence on cable handler (spinal cord / back bone analogy). Suggest idea that almost any problem with cable handler will pose immediate & fatal risk to vulnerable & delicate cables within. Cable handler problem -> Fatal cable problem -> Shearer downtime -> operation halt -> millions per day. The cable handler is that something that could cause mine downtime… Emphasis on vulnerability of shearer cable and hoses, their entire dependence on cable handler (spinal cord / back bone analogy). Suggest idea that almost any problem with cable handler will pose immediate & fatal risk to vulnerable & delicate cables within. Cable handler problem -> Fatal cable problem -> Shearer downtime -> operation halt -> millions per day.

7. The ideal handler is functional gives maximum protection to enclosed cables & hoses is robust & durable is quick & easy to service allows quick & easy access to cables & hoses What makes an ideal cable handler…. (?) It works properly, ie functional. Affords maximum protection to enclosed cables & hoses Is strong robust durable Quick and easy to service Quick and easy to access cables and hoses. What makes an ideal cable handler…. (?) It works properly, ie functional. Affords maximum protection to enclosed cables & hoses Is strong robust durable Quick and easy to service Quick and easy to access cables and hoses.

8. Cable handler A (Bretby) In most mines today Twin pull Link held together by two wire clips Plates slotted & recessed to allow for clips Common; but not ideal Clyde Bergman Senior Thermal Tiger Bretby General Unenthusiastic overview of tiger, hint of problems to come, explain how link is assembled Touch on “twin pull” if not already introduced Clyde Bergman Senior Thermal Tiger Bretby General Unenthusiastic overview of tiger, hint of problems to come, explain how link is assembled Touch on “twin pull” if not already introduced

9. The wire clip slot & recess vulnerable to debris obstruction clips vulnerable to bending and fatigue Seized clips No cable access Lengthy service downtime ($ per hour) Again common but Not ideal briefly explain how the clip design works. The main problems with the wire clip should be addressed here, As well as any anecdotes (rock falls, etc) causing lengthy (costly) failures because of clip design.briefly explain how the clip design works. The main problems with the wire clip should be addressed here, As well as any anecdotes (rock falls, etc) causing lengthy (costly) failures because of clip design.

10. Compromised Plates Plates are slotted & recessed to allow for retaining clips Compromised plate strength Compromised link robustness & durability Compromised cable & hose protection In use but Not ideal Todo: cross section image of compromised tiger plateTodo: cross section image of compromised tiger plate

11. Ideal handler vs. Handler A functional max protection to cables & hoses robust & durable quick & easy to service quick & easy access to cables & hoses yes Plates compromised Plates compromised Clips are Unreliable & Unpredictable Occasionally

12. Handler B - Centre Pull Single pull Cables & Hoses retained by ‘nibs’ Effectively single piece link Common; but not ideal

13. Handler B - Centre Pull Single pull, no redundancy Low link stiffness Not robust & durable Link not enclosed, cables poorly retained Risk of cable loss “out the side” Poor cable & hose protection In use but Not ideal

14. Handler B - Centre Pull No in situ access to cables & hoses No in situ access to coupling bolt handler must be hoisted to service link or cables cables must be ‘levered’ out to remove Not quick & easy Also in use - Not ideal

15. Ideal handler vs. Handler B functional max protection to cables & hoses robust & durable quick & easy to service quick & easy access to cables & hoses yes Poor cable & hose protection Low link stiffness No No in situ access to cables and hoses

16. The Linear Link Twin pull, fully enclosed Excellent cable and hose protection HVME Handler Overview (introducing) Cover ‘work properly’ & ‘protect enclosed cables’ Twin pull = fully enclosed = excellent protection to cables and hoses Made from Nylon 66 HVME Handler Overview (introducing) Cover ‘work properly’ & ‘protect enclosed cables’ Twin pull = fully enclosed = excellent protection to cables and hoses Made from Nylon 66

17. Sliding interlock design Quick & easy access to cables & hoses Rapid top plate replacement in situ ( quick & easy to maintain) -> Sliding interlock( quick & easy to maintain) -> Sliding interlock

18. Full thickness plate No slots or recesses to compromise strength Longer lasting; superior robustness & durability Robust & long lasting -more plate materialRobust & long lasting -more plate material

19. Handler Comparison Table comparing the ‘Ideal link’ & the 3 ‘real’ linksTable comparing the ‘Ideal link’ & the 3 ‘real’ links

20. Product development Cad design, computer stress optimised Finite element images, etc. FEM = Finite Element Method Cad design, computer stress optimised Finite element images, etc. FEM = Finite Element Method

21. Production Capability Initial Capability: 300 – 400 m per week 10,000 links per month - single mould 30,000 links per month – tri-moulds

22. END Conclusion / call to action / thankyou Conclusion / call to action / thankyou

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