1、July 2009DEUTSCHE NORM English price group 12No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 73.100.40!$Xt“1538196www.
2、din.deDDIN EN 12321Underground mining machinery Specification for the safety requirements of armoured face conveyors(includes Amendment A1:2009)English version of DIN EN 12321:2009-07Bergbaumaschinen unter Tage Sicherheitsanforderungen an Kettenkratzerfrderer (enthlt nderung A1:2009)Englische Fassun
3、g DIN EN 12321:2009-07SupersedesDIN EN 12321:2003-08See start of validitywww.beuth.deDocument comprises 22 pagesDIN EN 12321:2009-07 2 Start of validity This standard takes effect on 1 July 2009. DIN EN 12321:2003-08 may be used in parallel until 28 December 2009. National foreword This standard inc
4、ludes safety requirements. This standard has been prepared by Technical Committee CEN/TC 196 “Machines for underground mines Safety” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Bergbau (Mining Standards Committee), Technical Committee
5、NA 008-05-05 AA Einzelteile fr Frderer. Representatives of manufacturers and users of equipment and components, and of the responsible authorities contributed to this standard. Amendment of the European Machinery Directive has made it necessary to review the previously valid standard, EN 12321:2003,
6、 in terms of the essential requirements of the new European Machinery Directive, 2006/42/EC. This standard contains specifications meeting the essential requirements set out in Annex I of the “Machinery Directive”, Directive 98/37/EC, (valid until 28 December 2009) and the “revised Machinery Directi
7、ve”, Directive 2006/42/EC, which takes effect on 29 December 2009, and which apply to machines that are either first placed on the market or commissioned within the EEA. This standard serves to facilitate proof of compliance with the essential requirements of the directives. Once this standard is ci
8、ted in the Official Journal of the European Union, it is deemed a “harmonized” standard and thus, a manufacturer applying this standard may assume compliance with the requirements of the Machinery Directive (“presumption of conformity”). Amendments This standard differs from DIN EN 12321:2003-08 as
9、follows: a) The foreword makes reference to the newly added Annex ZB. b) In clause 7.2 “Marking”, the information relating to the manufacturer has been rendered more precise. c) In clause 7.2 “Marking”, the designation of the machinery has been added. d) Hazards due to noise are excluded from this s
10、tandard. e) Annex ZB (informative) “Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC” has been added. Previous editions DIN EN 12321: 2003-08 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12321:2003+A1 April 2009 ICS 73.100.40 Supersedes EN
11、 12321:2003English Version Underground mining machinery - Specification for the safety requirements of armoured face conveyors Machines dexploitation souterraine - Spcification relative aux prescriptions de scurit des transporteurs blinds chane raclettes Bergbaumaschinen unter Tage - Sicherheitsanfo
12、rderungen an Kettenkratzerfrderer This European Standard was approved by CEN on 11 March 2003 and includes Amendment 1 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 s
13、tatus of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national 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)
14、. A version in any other language made by translation under the responsibility of a CEN member into its own language and 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 Repu
15、blic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE
16、 NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights 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 Introducti
17、on . 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 6 4 List of significant hazards 7 5 Safety requirements/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
18、 areas . 11 5.8 Warning signs 11 5.9 Transport, installation, operation and maintenance 11 5.10 Guarding . 12 5.11 Chain 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) Verifi
19、cation data for safety requirements . 16 Annex ZA (informative) !Relationship between this European Standard and 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“ .
20、19 Bibliography 20 DIN EN 12321:2009-07 EN 12321:2003+A1:2009 (E) 3 Foreword This document (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
21、 of a national standard, either by publication of an identical text or by endorsement, at the 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 1
22、2321:2003. The start and finish of text introduced or altered by amendment is indicated in the 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). !Fo
23、r relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts 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
24、: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. DIN EN
25、12321:2009-07 EN 12321:2003+A1:2009 (E) 4 Introduction This European Standard is a type C 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 w
26、ith good engineering practice, taking account of expected shocks and vibrations and calculation 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 asbes
27、tos are not used; components are kept in good repair and working order, so that the required 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
28、 restraining devices). DIN EN 12321:2009-07 EN 12321:2003+A1:2009 (E) 5 1 Scope 1.1 This 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 Europe
29、an Standard does not apply to stage loader ancillaries, armoured face conveyors which 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 p
30、owered machines, or to the interfaces between the elements of the conveyor and other machine 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 th
31、e face roof support and the extraction machine if required. This European Standard deals 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 Europ
32、ean Standard does not cover any hazards resulting from the electrical equipment associated 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
33、in preparation where hazards due to noise will be addressed. It is intended for manufacturers 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 Europ
34、ean Standard. 1.3 This European Standard applies to armoured face conveyors which are 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 referen
35、ces are cited at the appropriate places in the text and the publications are listed hereafter. 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 la
36、test edition of the publication referred to applies (including amendments). EN 292-1:1991, 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 prin
37、ciples and specifications. EN 457, Safety of machinery Auditory danger signals General 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 Ergon
38、omics data to establish temperature limit values for hot surfaces. EN 894-1, Safety of 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 re
39、quirements for the design of displays and control actuators Part 2: Displays. DIN EN 12321:2009-07 EN 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
40、requirements for the design and construction of fixed and movable guards. EN 982, Safety 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
41、:2000, Ergonomics of the thermal environment Temperatures of touchable hot surfaces - 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 613
42、10-2:1995). EN ISO 8030, Rubber and plastic hoses Methods of test for flammability (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 t
43、he purposes of this European Standard, the following terms and definitions, together, 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 c
44、onveyor drive assembly comprising drive frame, sprocket gearbox, coupling and motor 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 assem
45、bly 3.6 scraper element in the chain assembly which pushes conveyed rock and mineral 3.7 tensioning device means of tensioning the chain assembly DIN EN 12321:2009-07 EN 12321:2003+A1:2009 (E) 7 3.8 chainlocking device means of preventing movement of the chain assembly at the coupling and de-couplin
46、g point 3.9 anchorage means of securing the armoured face conveyor or drive frame 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 armour
47、ed face conveyor 4 List of significant hazards Table 1 List of significant hazards 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 - m
48、achine parts or workpieces, e.g.: a) shape; b) relative location; c) mass and stability; 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.
49、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, 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 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,
