CONVEYOR MANUFACTURERS ASSOCIATION
From The Chairman’s Desk
W
e are starting the CMA off with a bang with the launching of a brand-new training course. The CMA Transfer Chute Design course will be held in March and all details can be found on the website www.cmasa.co.za in the Education and Training section. Transfer chutes are used as a method to transfer bulk material from one conveyor to another. There are however many poorly designed chutes that cause plant downtime, spillages and generally low plant availability due to blockages, excessive wear, impact damage to conveyor belting, misalignment due to skew loading, etc. The majority of these problems can be prevented by correctly designing the transfer chute. We present and explain the basic design principles of “guided flow” hood and spoon chutes, rock/dead box chutes and combinations of these two chute concepts. The course also covers the use of Discrete Element Modelling as a tool to supplement the traditional calculation methods. Since DEM is widely used throughout the industry, this forms an important part of the course and we focus on DEM analysis and calibration methods. The course also covers the practical aspects: • Understanding material properties – cohesion/ adhesion
• Minimising dust generation • Minimising spillages • Wear liner selection • Diverter gate selection / flopper gate design • Skirting and impact stations
Jay Pillay
The three days of theory are followed up with an (optional) assignment. Candidates who hand in the assignment may then write an examination. The course presenter is Henk Brink, who has had considerable experience in this field and is well respected in the industry. The assignments and examination are both moderated by an independent expert and successful candidates are eligible for a certificate of competency in the design of transfer chutes. Anyone interested in doing this course may contact the CMA or visit the website for dates and costs, and to download an application form. The course is generating high level interest. Numbers will be limited for practical purposes, so please do not delay if you are interested in registering for this course. Jay Pillay, Chairman
Membership at January 2020 All members subscribe to the CMA Code of Ethics Acrow Limited Actom Afripp Projects Altra Industrial Motion South Africa (Pty) Ltd Bauer Bearings International Belt Brokers Belting Supply Services BMG Bonfiglioli Power Transmissions Bosworth Brelko Conveyor Products CedoTech cc Closeal Manufacturing Collisen Engineering ContiTech South Africa (Pty) Ltd Conveyor & Engineering Equipment Conveyor & Industrial Supplies (Pty) Ltd Conveyor Watch (Pty) Ltd CT Systems David Brown Gear Industries DRA Projects SA (Pty) Ltd
Dunlop Belting Products Dymot Engineering Company ELB Engineering Services Electromote (Pty) Ltd Fenner Conveyor Belting (South Africa) Flexco SA (Pty) Ltd FLSmidth Roymec Habasit South Africa (Pty) Ltd Hägglunds Drives South Africa Hatch Africa (Pty) Ltd HMA South Africa (Pty) Ltd Hosch - Fördertechnik (SA) International Belting & Marketing (Pty) Ltd Iptron Technology cc KevConBelt (Pty) Ltd Leoka Engineering Lorbrand Magnet Service Binder CC Martin Engineering Melco Conveyor Equipment Merlin consulting (Pty) Ltd Moret Mining
Nepean Conveyors OE Bearings Oriental Rubber Industries SA Osborn Engineered Products Pegasus Industrial Services cc Rema Tip Top South Africa Ringspann South Africa Rossi Gearmotors (Pty) Ltd Rula Bulk Materials Handling SENET SEW Eurodrive Shaft Engineering (Pty) Ltd SKF South Africa Tenova Takraf ThyssenKrupp Industrial Solutions South Africa (Pty) Ltd Timken South Africa (Pty) Ltd Transvaal Rubber Company Voith Turbo Weba South Africa (Pty) Ltd WorleyParsons RSA Zest Electric Motors
BULK HANDLING TODAY
Jan/Feb 2020
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