1、BRITISH STANDARD BS EN 12321:2003 Underground mining machinery Specification for the safety requirements of armoured face conveyors ICS 73.100.30 +A1:2009National foreword This British Standard is the UK implementation of EN 12321:2003+A1:2009. It supersedes BS EN 12321:2003 which is withdrawn. The
2、start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“. The UK participation in its preparation was entrusted by Technica
3、l Committee MRE/1, Mining mechanical equipment and machinery. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.
4、 Compliance with a British Standard cannot confer immunity from legal obligations. BS EN 12321:2003+A1:2009 Amendments/corrigenda issued since publication Date Comments 30 November 2009 Implementation of CEN amendment A1:2009 This British Standard was published under the authority of the Standards P
5、olicy and Strategy Committee on 9 May 2003 BSI 2009 ISBN 978 0 580 62498 8 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12321:2003+A1 April 2009 ICS 73.100.40 Supersedes EN 12321:2003 English Version Underground mining machinery - Specification for the safety requirements of armoured face co
6、nveyors Machines dexploitation souterraine - Spcification relative aux prescriptions de scurit des transporteurs blinds chane raclettes Bergbaumaschinen unter Tage - Sicherheitsanforderungen an Kettenkratzerfrderer This European Standard was approved by CEN on 11 March 2003 and includes Amendment 1
7、approved by CEN on 24 February 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such na
8、tional standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language an
9、d notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembou
10、rg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights
11、of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12321:2003+A1:2009: EEN 12321:2003+A1:2009 (E) 2 Contents Foreword 3 Introduction . 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 6 4 List of significant hazards 7 5 Safety requirem
12、ents/protective measures 8 5.1 General 8 5.2 Starting . 9 5.3 Stopping . 9 5.4 Thermal hazards 10 5.5 Fluid power systems . 10 5.6 Hydraulic pipes and hoses . 11 5.7 Other dangerous areas . 11 5.8 Warning signs 11 5.9 Transport, installation, operation and maintenance 11 5.10 Guarding . 12 5.11 Chai
13、n locking devices and tensioning devices 12 6 Verification of safety requirements 12 7 Information for use 13 7.1 Instruction handbook 13 7.2 Marking . 15 Annex A (Normative) Verification data for safety requirements . 16 Annex ZA (informative) ! ! ! !Relationship between this European Standard and
14、the Essential Requirements of EU Directive 98/37/EC“ “ “ “ . 18 Annex ZB (informative) ! ! ! !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC“ “ “ “ . 19 Bibliography 20 BS EN 12321:2003+A1:2009EN 12321:2003+A1:2009 (E) 3 Foreword This document (
15、EN 12321:2003+A1:2009) has been prepared by Technical Committee CEN /TC 196 “Machines for underground mines - Safety“, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at th
16、e latest by October 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This document includes Amendment 1, approved by CEN on 2009-02-24. This document supersedes EN 12321:2003. The start and finish of text introduced or altered by amendment is indicated in t
17、he text by tags !“. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). !For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral p
18、arts of this document.“ Annex A is informative. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Ger
19、many, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. BS EN 12321:2003+A1:2009EN 12321:2003+A1:2009 (E) 4 Introduction This European Standard is a type C
20、 standard as stated in EN 1070. The extent to which hazards are covered is indicated in the scope of this standard. When compiling this standard it has been assumed that: components are: designed in accordance with good engineering practice, taking account of expected shocks and vibrations and calcu
21、lation codes, including all failure modes; of sound mechanical and electrical construction; made of materials with adequate strength and of suitable quality; and free of defects. harmful materials, such as asbestos are not used; components are kept in good repair and working order, so that the requi
22、red dimensions remain fulfilled despite wear; negotiations have taken place between the manufacturer or authorised representative, purchaser and/or user (e.g. for fire resistant fluids, safety equipment and load restraining devices). BS EN 12321:2003+A1:2009EN 12321:2003+A1:2009 (E) 5 1 Scope 1.1 Th
23、is European Standard specifies the safety requirements for armoured face conveyors and covers, conveyor drive units, return units, line pans, chain assemblies, devices for tensioning and locking chains. This European Standard does not apply to stage loader ancillaries, armoured face conveyors which
24、form part of mineral bunker systems or operate as spillage conveyors, to haulage systems and guides utilised by extraction machines, to the technical requirements for cable-less remote controls, to compressed air powered machines, or to the interfaces between the elements of the conveyor and other m
25、achine installations. Armoured face conveyors are designed for the transport of minerals and rock only. NOTE Armoured face conveyors can be used as a base for guiding the extraction machine and as a link between the face roof support and the extraction machine if required. This European Standard dea
26、ls with all hazards, hazardous situations and events for the use in mines, when they are used as intended and for the conditions foreseen by the manufacturer. See clause 4 for the hazards dealt with. 1.2 This European Standard does not cover any hazards resulting from the electrical equipment associ
27、ated with the machine. It does not contain any requirements relating to dust suppression or firedamp hazards. Hazards due to noise are also excluded from this European Standard, but a separate European Standard is in preparation where hazards due to noise will be addressed. It is intended for manufa
28、cturers producing and marketing complete machines, and for manufacturers assembling new parts from different origins or assembling new machines even for their own use. These are called “manufacturers” in this European Standard. 1.3 This European Standard applies to armoured face conveyors which are
29、manufactured after the date of issue of this European Standard. 2 Normative references This European Standard incorporates by dated or undated references, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed he
30、reafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 292-1:1
31、991, Safety of machinery Basic concepts, general principles for design Part 1: Basic terminology, methodology. EN 292-2:1991, Safety of machinery Basic concepts, general principles for design Part 2: Technical principles and specifications. EN 457, Safety of machinery Auditory danger signals General
32、 requirements, design and testing (ISO 7731:1986, modified). EN 547-3, Safety of machinery Human body measurements Part 3: Anthropometric data. EN 563, Safety of machinery - Temperatures of touchable surfaces Ergonomics data to establish temperature limit values for hot surfaces. EN 894-1, Safety of
33、 machinery Ergonomics requirements for the design of displays and control actuators Part 1: General principles for human interactions with displays and control actuators. EN 894-2, Safety of machinery Ergonomics requirements for the design of displays and control actuators Part 2: Displays. BS EN 12
34、321:2003+A1:2009EN 12321:2003+A1:2009 (E) 6 EN 894-3, Safety of machinery Ergonomics requirements for the design of displays and control actuators Part 3: Control actuators. EN 953, Safety of machinery Guards General requirements for the design and construction of fixed and movable guards. EN 982, S
35、afety of machinery Safety requirements for fluid power systems and their components Hydraulics. EN 1050:1996, Safety of machinery Principles for risk assessment. EN 1070:1998, Safety of machinery Terminology. EN 13202:2000, Ergonomics of the thermal environment Temperatures of touchable hot surfaces
36、 - Guidance for establishing surface temperature limit values in production standards with the aid of EN 563. EN 61310-2, Safety of machinery Indication, marking and actuation Part 2: Requirements for marking (IEC 61310-2:1995). EN ISO 8030, Rubber and plastic hoses Methods of test for flammability
37、(ISO 8030:1987) ISO 3864, Safety colours and safety signs. ISO 6805, Rubber hoses and hose assemblies for underground mining Wire-reinforced hydraulic types for coal mining Specification. 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions, togethe
38、r, where appropriate, with those given in EN 1070:1998 apply: 3.1 armoured face conveyor conveying device used to transport mineral and rock in a steel plate line pan by means of the scrapers of a chain assembly 3.2 conveyor drive assembly comprising drive frame, sprocket gearbox, coupling and motor
39、 3.3 return unit assembly comprising frame and sprocket 3.4 chain assembly comprising of scrapers and link chain 3.5 sprocket drive element which can transmit motor torque and the resulting movement to the chain assembly 3.6 scraper element in the chain assembly which pushes conveyed rock and minera
40、l 3.7 tensioning device means of tensioning the chain assembly BS EN 12321:2003+A1:2009EN 12321:2003+A1:2009 (E) 7 3.8 chainlocking device means of preventing movement of the chain assembly at the coupling and de-coupling point 3.9 anchorage means of securing the armoured face conveyor or drive fram
41、e against uncontrolled movement 3.10 line pan intermediate components between the two ends of the conveyor designed to carry the chain assembly/mineral and rock 3.11 furnishings auxiliary equipment attached to the armoured face conveyor 4 List of significant hazards Table 1 List of significant hazar
42、ds with associated requirements EN 1050:1996 annex A Hazards according to EN 1050:1996 annex A Relevant clause/subclause of this standard 1 Mechanical hazards due to: 5.9.2 5.6.1, 5.10, 5.2.1, 5.3.2 5.7, 5.9.2 5.11.1 - machine parts or workpieces, e.g.: a) shape; b) relative location; c) mass and st
43、ability; d) mass and velocity (kinetic energy of elements in controlled or uncontrolled motion); e) inadequacy of mechanical strength; 1.1 Crushing hazard 5.2, 5.3, 5.8, 5.9.1, 5.10, 5.11.1, 5.11.2 1.2 Shearing hazard 5.2, 5.3, 5.8, 5.10, 5.11.1, 5.11.2 1.3 Cutting or severing hazard 5.2, 5.3, 5.8,
44、5.10, 5.11.1, 5.11.2 1.4 Entanglement hazard 5.2, 5.3, 5.8, 5.10, 5.11.1, 5.11.2 1.5 Drawing-in or trapping hazard 5.2, 5.3, 5.8, 5.10, 5.11.1, 5.11.2 1.6 Impact hazard 5.2, 5.3, 5.7, 5.9, 5.10, 5.11.1, 5.11.2 1.8 Friction or abrasion hazard 5.2, 5.3, 5.11.1 1.9 High pressure fluid injection hazard
45、5.5.3, 5.6.1 2 Electrical hazard due to: 2.1 Contact of person with live parts (direct contact) 5.8 3 Thermal hazards, resulting in: 3.1 Burns and scalds by contact with objects or materials with an extreme high or low temperature, by flames or explosions and also by the radiation of heat sources 5.
46、4, 5.5.3, 5.8, 5.10 7 Hazards generated by materials and substances (and their constituent elements) processed or used by the machinery 7.1 Hazards from contact with or inhalation of harmful fluid, gases, mists, fumes and dusts 5.5.2, 5.8, 5.10 7.2 Fire or explosion hazard 5.4 8 Hazards generated by
47、 neglecting ergonomic principles in machinery design, e.g. hazards from: BS EN 12321:2003+A1:2009EN 12321:2003+A1:2009 (E) 8 Table 1 (continued) EN 1050:1996 annex A Hazards according to EN 1050:1996 annex A Relevant clause/subclause of this standard 8.1 Unhealthy postures or excessive effort 5.1.2,
48、 5.6.2, 5.9.1, 5.9.2 8.6 Human error 5.1.2, 5.9.2 8.7 Inadequate design, location or identification of manual controls 5.1.2 8.8 Inadequate design or location of visual display units 5.1.2 10 Unexpected start-up/over-run/over-speed (or any similar malfunction) from: 10.2 Restoration of energy supply
49、 after an interruption 5.2 11 Impossibility of stopping the machine in the best possible conditions 5.3.4 14 Failure of the control circuit 5.3 15 Errors of fitting 5.9.2 17 Falling or ejected objects or fluids 5.7, 5.9.2 18 Loss of stability/overturning of machinery 5.9.1 19 Slip, trip and fall of persons (related to machinery) 5.5.3 Additional hazards, hazardous situations and hazardous events due to mobility 22 Due to the control
