2016/05 - Bullk Handling Today

BULK

HANDLING Endorsed by: CMA l LEEASA l SAIMechE l SAIMH

T O D A Y

May 2016

MOTORIZED PULLEYS

AFRICA’S PREMIER SUPPLIER OF CONVEYOR IDLERS, FRAMES, STRUCTURE & MOTORISED PULLEYS

setting up in chile operating in difficult terrain

BULK

HANDLING

BULK HANDLING TODAY

T O D A Y

May 2016

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The South African Institute of Materials Handling

Sample

The South African Institute of Materials Handling (SAIMH) is a Non-Profit organisation set up with an objective to encourage the transfer of knowledge associated within the fields of Bulk Materials Handling (conveyors, stacker, reclaimers, tipplers, train loading systems, etc.) through a combination of seminars and networking sessions.

The SAIMH is made up of professional engineers, each practising their trade in a variety of organisations who volunteer their time to execute the SAIMH’s objective. The main aim is thus to promote the advancement of the art, science, theory and practice of the Bulk Materials Handling principles and techniques.

Company Affliates as at May 2016 Afripp Projects cc Brelko Conveyor Products (Pty) Ltd Bulkcon CPM Engineering CT Systems cc Conveyor Watch (Pty) Ltd David Brown Gear lndustries (Pty) Ltd ELB Engineering Services (Pty) Ltd Engicon Systems (Pty) Ltd Facet Engineering cc Flexco (SA) (Pty) Ltd

Hagglunds Drives SA (Pty) Ltd Hansen Transmissions SA (Pty) Ltd Hatch Goba (Pty) Ltd lllustech J & A Engineering Services Kimrae Engineering Prolects Loadtech Load Cells (Pty) Ltd MacsteelVRN Martin Engineering Melco Conveyor Equipment Morris Material Handling SA (Pty) Ltd

Osborn Engineered Products (Pty)Ltd PD Engineering Services cc PH Projects Holdings (Pty) Ltd Rio Carb (Pty) Ltd Sandvik Materials Handling Africa Screw Conveyors & Material Handling Senet SEW Eurodrive Spar Western Cape SSAB South Africa (Pty) Ltd Tenova Zest Electric Motors (Pty) Ltd

4 BULK 2016 Tel: (011)HANDLING 867-0902TODAY l Fax:May (011) 867-0036 l Email: saimh@global.co.za l www.saimh.co.za

Simon Curry

BULK HANDLING TODAY

May 2016

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ENDORSER OF “BULK HANDLING TODAY”

LIFTING EQUIPMENT ENGINEERING ASSOCIATION OF SA

LEEASA, formed in 2003, is a division of the Chamber of Engineering Technology (COET), a non-profit organisation. The association’s objectives include, but are not limited to: the transfer of knowledge and training within the field of the Lifting Industry, to improve safety, promote the use of standards and to promote Professional and Ethical practices.

I

t is represented on the Engineering Council of South Africa (ECSA) and a number of ECSA committees as well as on various task teams at the South African Bureau of Standards (SABS).

What’s in it for you:

As an Individual member who is registered as a Lifting Machinery Inspector (LMI), you may qualify for any concessionary fee granted by ECSA (this could save you over R1 000 a year).

ECSA registered COET / LEEASA members are awarded one Continuing Professional Development (CPD) credit in category

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3 each year. CPD is an ECSA requirement to retain registration.

Members obtain a discount on training and seminars validated by the association, especially useful in earning ECSA CPD credits.

Members benefit from the collective power of a recognised and established association and collective co-ordination in dealing with authorities in policy making and matters concerning the industry.

LEEASA has some 500 members (Individuals and Companies).

LIFTING EQUIPMENT ENGINEERING ASSOCIATION OF SOUTH AFRICA Head Office: 8 Boris Road Bordeaux, Randburg, Johannesburg P.O.Box 2348, Pinegowrie. 2123, Republic of South Africa Tel: 074 900 8378 • www.leeasa.co.za Secretary: Arni Sommer • email: arni@leeasa.co.za

BULK HANDLING TODAY

May 2016

BULK HANDLING TODAY

February 2012

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LIFTING G

” UIDE

“

2016/17

“T

here is a real need in our industry for a one-stop reference guide that can be used by our members and users alike to navigate through the many safety and inspection requirements in manufacturing, selling, owning and operating lifting equipment,” says Ken Greenwood, Chairman of LEEASA (Lifting Engineering Equipment Association of SA).

“Having had a long history of putting together a bi-annual Lifting Guide, together with Promech Publishing, publishers of “Bulk Handling Today”, we intend the revised issue of the Guide (2016/2017) to be a comprehensive and a deKen Greenwood Chairman of LEEASA finitive publication, so much so that I would have no hesitation in recommending it as an authoritative self-standing training manual in our industry,” Ken adds.

“This is an important mouthpiece for LEEASA as the only dedicated annual guide we endorse. It will be an accessible and clear guide on everything you need to know about lifting engineering equipment.”

The Guide will include: An in-depth explanation of the Regulations governing the lifting industry Clear information on which standards apply to the industry and how to interpret any grey areas Broad guidelines for manufacturers of lifting equipment and how to address safety concerns in this arena.

Information on maintenance: inspection criteria, intervals and accompanying documentation Updated information on the various types of lifting equipment on the market.

LIFTING gUIDE 2014/15 Also publishers of “Bulk Handling Today”

If you would like your product or service to feature in this definitive Guide, Contact: Lyn Patricio

Tel: 011 781 1401 / 083 637 7122 E-mail: bulkhandling@promech.co.za BULK HANDLING TODAY

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Figure 1: Well-known horizontal take-up trolley design

Figure 2: Transfer of forces

Figure 3: Side view of optimised trolley

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BULK HANDLING TODAY

May 2016

Existing design

Optimised design

Ratio

Structural mass (kg)

968

395

0.4 of existing

Total weld length (m)

23.2

15.6

0.67 of existing

Capacity to mass ratio

413 KN/kg

1329 KN/kg

3.2

Table1: Summary of measurable improvements

Figure 4: Isometric view of optimised trolley

Figure 5: Nonlinear limit analysis of optimised design

Figure 6: Nonlinear limit analysis of existing design

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DRIVING TECHNOLOGY DELIVERING PRODUCTIVITY Sandvik Mining is your single-source design, project construction and management provider for multi-disciplinary mining systems projects. Whatever your bulk materials handling need, we’ve got you covered. We specialize in underground, in-plant and long complex overland conveying systems, crushing and screening plants, total stockyard systems including stackers and reclaimers, spreader systems, IPCC systems, shiploaders and export terminals.

For enquiries, please contact +27 (0) 11 657 4600 MINING.SANDVIK.COM

Pedro Javier Vega, technical advisor at Weba South America

BULK HANDLING TODAY

May 2016

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SPECIALIST IN BULK MATERIALS HANDLING SOLUTIONS

BMG is Africa's foremost single-source supplier with a world of engineering components and service solutions for materials handling.

We provide valuable insight into the technical requirements of your operating process as well as foresight as to how our technical expertise, design and onsite maintenance capabilities and training can all be applied to maximise your production efficiencies • • •

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Bearings • Seals • Power Transmission • Drives & Motors Materials Handling • Fasteners & tools • Hydraulics • Pneumatics Filtration • Lubrication • Valves • Technical resources • Field Services

BULK HANDLING TODAY

May 2016

Christo Venter of GaNala Plant Hire

BULK HANDLING TODAY

May 2016

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Coralynne & Associates +27 (011) 849 3142

ABSOLUTE MATERIAL FLOW CONTROL

ABSOLUTE MATERIAL FLOW CONTROL

• Optimum material flow • Up to 80% decrease in material degradation • Reduced dust and noise levels • Virtually maintenance free • Greatly reduced spillage • Significant reduction in belt damage

TM

SOUTH AFRICA

Phone: +27 (0) 11 827 9372 Email: info@webachutes.com

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BULK HANDLING TODAY

May 2016

BULK HANDLING TODAY

May 2016

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Brett DeVries, Flexible Steel Lacing Company, USA

LAGGING TYPES TESTED Diamond Full Medium Diamond Conditions rubber ceramic ceramic rubber ceramic Clean & Dry Yes Yes Yes Yes Wet Yes Yes Yes Yes Muddy Yes Yes Yes Yes Table 1. Lagging tests Full ceramic

Medium ceramic

Plain rubber Yes Yes No

Diamond rubber Diamond rubber ceramic

Plain rubber

Table 2. Lagging types

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Figure 1. Lagging test fixture

Figure 2. Lagging test fixture

Figure 3. Lagging test fixture in use

Figure 4. Lagging shear plate with bonded lagging

BULK HANDLING TODAY

May 2016

Figure 5. Classic friction behaviour

Figure 6. Pull force vs. displacement, 207 kPa, plain rubber lagging, clean and dry conditions

Figure 7. Pull force vs. displacement, 414 kPa, plain rubber lagging, clean and dry conditions

Figure 8. Close up of bottom cover damage

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Figure 9. Friction coefficient vs. pressure, plain rubber lagging, clean and dry conditions

Figure 10. Friction coefficient vs. pressure, full ceramic lagging, clean and dry conditions

Figure 11. Friction factor vs. pressure, clean and dry conditions

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BULK HANDLING TODAY

May 2016

Figure 12. Friction factor vs. pressure, wet conditions

Figure 13. Friction factor vs. pressure, muddy conditions

Figure 14. Pulley segment

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Figure 15. Available driving shear stress, clean and dry conditions

Figure 16. Available shear stress, wet conditions

Figure 17. Available shear stress, muddy conditions

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BULK HANDLING TODAY

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Appendix A – Instron Test Setup

Figure 18. Isometric view

Figure 19. Side view

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BULK HANDLING TODAY

Figure 20. Front view

May 2016

Figure 22. Balanced shear stress

Shear Stress (N/mm 2)

Pressure (N/mm 2)

Figure 21. Accumulated length difference

Angle ÎŚ (deg) Pressure and Shear Stress as Functions of Rotation Angle for Belt.

(Tension T 1 = T 2 = 450 N/mm. Roller diameter is 1 250mm, roller lagging thickeness 15mm, steel cable belt cover thickness 8mm) 2 Figure 23. Pressure and shear stress on a non-driven pulley

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BULK HANDLING TODAY

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Arcoplate is often specified to protect equipment, chutes and containers in applications involving extreme temperatures or abrasion.

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• Motorised cable reeling drums • Slipring assemblies (low & medium voltage) • Spring-driven cable reeling drums • Slipring assemblies (Accessories)

The smooth, dense metal alloy face and hard steel back plate resist gouging, erosion and extreme temperatures

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BULK HANDLING TODAY

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BULK HANDLING TODAY

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Solutions should meet the individual requirements of a company

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BULK HANDLING TODAY

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MARKET FORUM

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BULK HANDLING TODAY

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MARKET FORUM

www.flsmidth.com • +27 (0)10 210 5000

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MARKET FORUM

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BULK HANDLING TODAY

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MARKET FORUM

Lifting Solutions That Work.

Divisions of

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MARKET FORUM

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BULK HANDLING TODAY

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MARKET FORUM

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MARKET FORUM

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BULK HANDLING TODAY

May 2016

Conveying Excellence with High-End Conveyor Belts Every conveyor belt, every climate zone and every topography calls for perfect conveyor belt technology. ContiTech provides knowledge, experience, a globally encompassing and competent network and a broad product range to give your conveyor belt applications a technological lead. More than 140 years of rubber expertise make us a strong partner, enabling our customers to benefit from the synergies within the Continental corporation. We implement innovative conveyor belt technology reliably, sustainably and safely from development to commissioning and after-sales service.

conveying excellence

+27 (0) 11 248 9300 www.contitech.co.za

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