Presenter:
Simon Curry
Employment: Project Development Manager at FLEXCO
Current chairman of the Conveyor Manufacturer’s
Association.
Actively involved in the conveyor industry since 1981
covering all aspects in the design, manufacture,
installation, commissioning, operating and forensic
investigation of conveyor systems.
CONVEYOR MANUFACTURERS
ASSOCIATION
What is the CMA, what does it do to industry?
Focus on safety around belt conveyors!
OVERVIEW
AIM OF THE ASSOCIATION
BRIEF HISTORY
CODE OF ETHICS
ACTIVITIES
TECHNICAL
EDUCATIONAL
ANNUAL EVENTS
CONFERENCES – BELTCON / SAFECON
SAFETY ISSUES
CMA DOCUMENT – SAFETY AROUND BELT CONVEYORS
CONCERNS ABOUT SANS 971
AIM OF THE ASSOCIATION
The aim of the Association
is to actively promote the
excellence of belt
conveying in southern
Africa
BRIEF HISTORY
CMA founded in 1973
Started with 5 member companies
2013 – 73 member companies
All companies are South African based
but
Interest shown from North Africa to join
Keen to develop relationship with alliance partners
Similar efforts with mining houses patron association
CODE OF ETHICS
 CMA established a code of ethics for the industry
 Signing of the code is a pre-requisite for
membership
 Enforced by the member companies
ETHICS OF THE ASSOCIATION
A member of the CMA shall not offer:
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payment of any private commissions to client employees
payment of any client related accommodation, fares and other travel costs,
unless agreed upon prior to the event by senior management of both
parties.
to use the strength of the Association to challenge increases in the
costs of raw materials and ancillary components
to pay for holiday or weekend accommodation of any client or client's
employees
to exchange irregular favours against threats from the employees of a client
favours or gratuities in return for invitations to tender, award of contracts,
orders or confidential client information
goods or services which are outside the normal business of the member
company to clients free of charge or at artificially low prices
ETHICS OF THE ASSOCIATION
Collusion between CMA members and CMA and non-CMA companies will not
be permitted. Arrangements such as Joint Ventures, Consortiums or Alliance
partners are however permitted.
CMA members may not apply negative selling techniques against any other
CMA member company, its products or services.
All published editorials and articles are to be truthful, not misleading and deal
with matters of a current nature.
TECHNICAL FORUM
NATIONAL STANDARDS THAT THE CMA HAS INFLUENCED:
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Pulley specification (SANS 1669 parts 1 & 2)
Idler specification (SANS 1313 parts 1 to 3)
Conveyor tubing specification (SANS 657 part 3)
Steelcord belting (SANS 1366)
Ply belting (SANS 1173)
Solid woven belting (SANS 968)
Fire resistant properties methods of testing (SANS 971)
Splicing of ply belts – hot vulcanised SANS 484 part1
Splicing of ply belts – cold vulcanised SANS 484 part 2
Splicing of steelcord belts – SANS 485
Splicing of solid woven belts – SANS 486 (finger splice)
TECHNICAL FORUM
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Annual SABS review of the all the related standards (TC1049)
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CMA STANDARDS available at www.cmasa.co.za
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Safety around belt conveyors
Clamps for belt conveyors
Geared reducers for conveyors
Static shaft conveyor pulleys
CMA/SAIMH JOINT FORUM
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Review the relevant specifications
Amend the specifications when required
Introduce new specifications when required
SANS working group Idlers current activity
SANS working group Belting current activity
Quarterly technical presentations
CMA TECHNICAL HANDBOOK
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Currently work in progress
EDUCATION
CMA CONVEYOR DESIGN DIPLOMA
6 day programme comprising theory, practical, assessments and
culminating in an open book exam (6 CPD credits)
CMA BELT SPLICING REFRESHER COURSE
5 days
CMA BELTSMAN CERTIFICATE COURSE
1 day
CMA OPERATING AND MAINTENANCE CERTIFICATE COURSE
3 days including written exam
ANNUAL CMA MEMBER EVENTS
ANNUAL GALA DINNER SPECIAL EVENT
Prestigious annual dinner facilitates networking of
industry professionals
Forum for presenting awards – acknowledge inputs from deserving
individuals
ANNUAL GOLF DAY SPECIAL EVENT
Yearly event for promoting interaction with clientele
INDUSTRY INTERACT & AGM WEEKEND
Annual event to confirm compliance with the aims of the CMA
Promote interaction between member companies
CONFERENCES
 The CMA co-sponsors the biennial
Beltcon conference
 CMA annual Safety Symposium (SAFECON)
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First symposium was held in 2010 with follow ups in
2011, 2012 and SAFECON now planned for 2014.
SAFECON will alternate with BELTCON.
CMA – SAFECON
OBJECTIVES OF SAFECON
 ADVISE ALL PARTIES OF THE LEGAL REQUIREMENTS
 ESSENTIALLY INVOLVE OEM COMPANIES AT BASE
LEVEL AND END USERS
 LEARN FROM AND SHARE ALL EXPERIENCES
 JOINT APPROACH TO SAFETY AROUND CONVEYORS
OPEN ISSUES FROM MOST RECENT SAFETY
CONFERENCE
 RUN BACK IDLERS or BELT GRABS (HOLDBACKS)
 DMR ACCEPTANCE OF THE CMA SAFETY SPEC
CMA – SAFECON
MISSION STATEMENT
PROMOTING THE
SAFETY ASPECTS
IN THE DESIGN, CONSTRUCTION
AND OPERATING OF BELT
CONVEYORS WHILE STRIVING FOR
EXCELLENCE
IN THE FIELD OF BELT CONVEYING
IN SOUTH AFRICA
CMA – SAFECON
ASPECTS TO BE COVERED
 CURRENT LEGAL REQUIREMENTS
 PRESENT AND EXAMINE CASE STUDIES
 SAFETY STATISTICS
 DESIGNING SAFE CONVEYOR INSTALLATIONS
CMA – SAFECON
CURRENT LEGAL REQUIREMENTS
CREATING AN INDUSTRY PLATFORM TO INFORM AND
ADVISE ON THE CURRENT LEGAL REQUIREMENTS
PERTAINING TO ALL ASPECTS OF SAFETY AROUND
BELT CONVEYORS
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BIENNIAL REVIEW OF SAFETY LEGISLATION
REVIEW PROPOSED AMENDMENT(S) TO THE LEGISLATION
PROPOSE IMPROVEMENTS TO CURRENT LEGISLATION FROM
AN OPERATING AND DESIGN PERSPECTIVE
ULTIMATELY BECOME SELF REGULATING ON SAFETY ISSUES
CMA – SAFECON
PRESENT AND EXAMINE CASE STUDIES
PRESENT AND EXAMINE CASE STUDIES OF ACCIDENTS
INVOLVING BELT CONVEYORS WITH THE VIEW OF
INFORMING AND IMPROVING SAFETY AROUND BELT
CONVEYORS
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CASE STUDIES TO BE PRESENTED BY END USERS FOR THE
PURPOSE OF INFORMING ON POSSIBLE DEFICIENCIES IN
DESIGN OR LEGISLATION
CASE STUDIES TO BE PRESENTED BY DESIGNERS IN THIS
REGARD AS TO HOW DEFICIENCIES CAN BE RESOLVED OR
MITIGATED
CMA – SAFECON
STATISTICS
REVIEW AND EXAMINE STATISTICS OF ACCIDENTS
INVOLVING BELT CONVEYORS TO IDENTIFY HAZARDS
AND RISKS WHEN OPERATING AND MAINTAINING BELT
CONVEYORS
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REVIEW ALL THE STATISTICAL DATA PERTAINING TO
INCIDENTS DIRECTLY AND INDIRECTLY RELATED TO BELT
CONVEYORS
EXAMINE STATISTICS WITH THE VIEW OF IDENTIFYING
ACCIDENT TRENDS PERTAINING TO CONVEYORS
 LOCATION OF ACCIDENTS AND OBVIOUS SIMILARITIES
 IDENTIFY HUMAN INTERFACE
CMA – SAFECON
DESIGNING SAFE CONVEYOR INSTALLATIONS
PURSUE THE INVOLVEMENT OF DESIGNERS TO
NURTURE THE MIND-SET FOR DESIGNING CONVEYOR
INSTALLATIONS WHICH ARE SAFE TO BUILD, OPERATE
AND MAINTAIN
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CONVEYOR DESIGNERS TO PRESENT DESIGNS CONSIDERED
TO BE SAFE FROM AN OPERATING ASPECT
PRESENT AND DISCUSS STANDARD OPERATING
PROCEDURES FOR CONVEYORS
PRESENT AND DISCUSS STANDARD CODES OF PRACTICES
BOTH FROM THE DESIGN AND OPERATING PERSPECTIVE OF
BELT CONVEYORS
CMA – Safety around belt conveyors
CMA - SAFETY AROUND BELT CONVEYORS
THIS DOCUMENT COMPRISES
INTRODUCTION
PURPOSE
SAFETY ISSUES
CONVEYOR SYSTEM PROTECTION
BASICS OF CONVEYOR GUARDING
APPENDIX A – MINE HEALTH AND SAFETY ACT
APPENDIX B – RISK ASSESSMENT FORM
APPENDIX C – AS1755 2000
CMA – Safety around belt conveyors
INTRODUCTION
Belt conveyors are probably the most efficient means of
transporting bulk materials. However, they are considered
dangerous due to the sheer size of the installation which prevents
clear and unimpeded visibility down the length of the system.
Conveyors can be one of the most hazardous mine or plant
equipment installations if safety regulations are not strictly
followed or if the conveyors are not properly maintained.
The South African Mines Health and Safety Act (Act 4 of 1996.
Section 21) states that the onus is on the supplier to
provide the correct conveyor design taking into consideration
the risk to the health and safety of operating personnel.
CMA – Safety around belt conveyors
PURPOSE
The purpose of this document is to serve as a minimum
specification for the design of safe operating conditions
and fulfilment of safety requirements for belt conveyors in
accordance with the statutory regulations and Acts
pertaining to machinery, particularly those sections
applicable to conveyors.
CMA – Safety around belt conveyors
SAFETY ISSUES
3.1 Safety Requirements for Maintenance ........................................... 3
3.2 Stored Energy (Trapped energy) ................................................. 4
3.3 Lock out Systems ........................................................................... 4
3.4 Personnel Training in Safe Working and Operating Procedures .... 4
3.5 Safe Operating Procedures ............................................................ 4
3.6 Basic Check List Prior to Re-starting a Conveyor ........................... 5
CMA – Safety around belt conveyors
CONVEYOR SYSTEM PROTECTION
4.1 Belt Control ..................................................................................... 5
4.2 Belt Alignment ................................................................................. 7
4.3 Belt Overload .................................................................................. 8
4.4 Belt Slip Protection ......................................................................... 8
4.5 Take-up Over-travel ........................................................................ 9
4.6 Transfer Chute Plug or Blocked Chute ........................................... 9
4.7 Bin Level ........................................................................................ 10
4.8 Pull-cord Stations ........................................................................... 10
4.9 Rip Detectors ................................................................................. 11
4.10 Fire Detection ............................................................................... 12
4.11 Lightning Protection ...................................................................... 12
4.12 Dust Suppression ......................................................................... 12
CMA – Safety around belt conveyors
BASICS OF CONVEYOR GUARDING
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REACHING UP
UPPER LIMB REACH DISTANCE WITH FIXED
FENCES
REACHING AROUND WITH UPPER LIMBS
REACHING IN AND THROUGH REGULAR OPENINGS
OPENINGS OF IRREGULAR SHAPE
LOWER LIMB REACH DISTANCE
CMA – Safety around belt conveyors
APPENDIX A – MINE HEALTH AND SAFETY ACT
AMENDMENTS TO MINES HEALTH AND SAFETY ACT
GAZETTED ON 23 AUGUST 2013
I SUSAN SHABANGU, Minister of Mineral Resources, under
section 98 (1) of the Mine Health and Safety Act, 1996 (Act
No. 29 of 1996) and after consultation with the Council, hereby
amends Chapter 8 of the Regulations in terms of the Mine
Health and Safety Act, as set out in the Schedule.
SUSAN SHABANGU
MINISTER OF MINERAL RESOURCES
CMA – Safety around belt conveyors
APPENDIX B – RISK ASSESSMENT FORM
CMA – Safety around belt conveyors
APPENDIX B – RISK ASSESSMENT FORM
CMA – Safety around belt conveyors
APPENDIX C – AS1755 2000
REACHING UP
REACHING IN AND THROUGH
REGULAR OPENINGS
UPPER LIMBS REACH DISTANCE
WITH FIXED FENCES
OPENINGS OF IRREGULAR
SHAPE
REACHING AROUND WITH
UPPER LIMBS
LOWER LIMB REACH
DISTANCE
CMA – Related safety issues
OTHER SAFETY ISSUES (SANS 971)
Fire resistant properties methods of testing
 This standard is a critical issue from the industry and CMA
perspective
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Steelcord belting (SANS 1366)
Ply belting (SANS 1173)
Solid woven belting (SANS 968)
Fire resistant properties methods of testing (SANS 971)
 SABS technical working group input complete
 The standard currently needs to be issued by the SABS in
order for it to become official
 Interrelated with the belting suite of specifications
CMA – SANS 971
Conveyor belting and fire hazard in mining
Mine fires linked to conveyor belts
prompted development of
conveyor belt testing and
specifications
Build up of heat by
friction was, and still is,
the primary cause of fire
4 parameters usually
specified in safety
standards test
CMA – SANS 971
Conveyor belting and fire hazard in mining
4 parameters usually specified in safety
standards test
• Flame test - resistance to ignition
• Friction test - resistance to heat build up
through friction
• Flame propagation test - resistance to fire
propagation
• Electrical resistance test - resistance to
static discharge
CMA – SANS 971
Conveyor belting and fire hazard in mining
Country
Standard
Australia
AS4606 / AS1332
Canada
CAN/CSA M422-M87
China
MT914
Europe
EN12881 EN14973
India
IS3181
South Africa
SANS 971
USA
MSHA
CMA – SANS 971
Conveyor belting and fire hazard in mining
Region
Australia
Canada
China
Europe
India
South Africa
USA
Ignition Friction Propagation Electrical
CMA – SANS 971
Conveyor belting and fire hazard in mining
Ignition test
Assess how quickly
standard size sample will
self extinguish after being
subjected to standard
flame.
CMA – SANS 971
Conveyor belting and fire hazard in mining
Friction test - drum friction
Assess for fire, glow
and temperature rise
when subjected to
standard friction
conditions.
CMA – SANS 971
Conveyor belting and fire hazard in mining
Fire propagation test - ‘full scale gallery’
Assess how much of
the standard sample
has no fire damage
after standard flame
has been applied for
standard time.
CMA – SANS 971
Conveyor belting and fire hazard in mining
Fire propagation test - Test methods for Europe
• UK high energy test
4m long sample 1000mm width 7.5kg propane burned
for 50 minutes.
Test replaced by ‘equivalent’ mid scale test
• Belgium and France - 2m long sample, standard
energy burner. Still in use for textile reinforced belts.
For steel cord and aramid reinforced conveyor belts
high energy test used where 5.2kg propane burned for
20 minutes.
• Germany - very high energy burning, roadway test
(Brandstrecke test)
CMA – SANS 971
Conveyor belting and fire hazard in mining
Fire propagation test - ‘full scale gallery’
SANS 1366 type F
SANS 1366 type M
Assess how much of
the standard sample
has no fire damage
after standard flame
has been applied for
standard time.
CMA – SANS 971
Conveyor belting and fire hazard in mining
New fire testing standard for South Africa
SANS 971:2013
•This new testing standard likely to come into
force in September 2013.
•The same methods of testing will be applied to
all constructions of conveyor belting
•Existing drum friction test, electrical resistance
test and flame ‘initiation’ test to be retained with
minor changes.
•Addition of mid scale fire propagation test
CMA – SANS 971
Conveyor belting and fire hazard in mining
Mid scale fire propagation test
Designed to achieve the
same results as full scale
test but with reduced
smoke emission to ensure
that the test can be
performed without
negative environmental
impact.
THANK YOU FOR
YOUR ATTENTION
QUESTIONS?
Please refer to the CMA website
www.cmasa.co.za