1、|BRITISH STANDARDBS EN12013:2000ICS83.200NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWRubber and plasticsmachines Internalmixers Safetyrequirements+A1:2008ThisBritishStandard,waspublishedundertheauthorityoftheStandardsCommitteeandcomesintoeffecton15August2000 BSI2009ISBN 978
2、 0 BS EN 12013:2000Amendments/corrigenda issued since publicationNational foreword+A1:2008This British Standard is the UK implementation of EN 12013:2000+A1:2008. It supersedes BS EN 12013:2000 which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the tex
3、t 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 abThe UK participation in its preparation was entrusted by Technical Committee MCE/3, Safeguarding of machinery, to Subcommittee MCE/3/2, Rubber and pla
4、stics machines - Safety.A list of organizations represented on this subcommittee 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.Compliance with a British Standard c
5、annot confer immunity from legal obligations.580 55853 5Date Comments 30 June 2009 Implementation of CEN amendment A1:2008EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12013:2000+A1 August 2008 ICS 83.200 Supersedes EN 12013:2000 English Version Plastics and rubber machines - Internal mixers
6、- Safety requirements Machines pour les matires plastiques et le caoutchouc - Mlangeurs internes - Prescriptions de scurit Kunststoff- und Gummimaschinen - Innenmischer - Sicherheitsanforderungen This European Standard was approved by CEN on 25 May 2000 and includes Amendment 1 approved by CEN on 8
7、June 2008. 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 national standards may be ob
8、tained 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 and notified to the CEN Mana
9、gement 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, Luxembourg, Malta, Netherlands, No
10、rway, 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: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any f
11、orm and by any means reserved worldwide for CEN national Members. Ref. No. EN 12013:2000+A1:2008: EEN 12013:2000+A1:2008 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 4 2 Normative references 4 3 Definitions 6 4 List of hazards8 5 Safety requirements and/or measures 20 6 Verification of safe
12、ty requirements and/or measures31 7 Information for use 33 Annex A (informative) Examples of possible technical measures to prevent fire hazards in the case where certain exothermically reacting compounds cannot be released from the mixing chamber in the event of a power failure .36 Annex ZA (inform
13、ative) !Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC“.37 Annex ZB (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC“.38 BS EN 12013:2000+A1:2008 EN 12013:2000+A1:2008 (E) 3 Forew
14、ord This document (EN 12013:2000+A1:2008) has been prepared by Technical Committee CEN/TC 145 “Plastics and rubber machines“, the secretariat of which is held by UNI. This document shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the
15、latest by February 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This document includes Amendment 1, approved by CEN on 2008-06-08. The main changes compared to the previous version are: Modification of the main element of the title. Editorial modificati
16、on of Annex ZA. Addition of Annex ZB. Editorial changes of EN 292-1:1991 to EN ISO 12100-1:2003 and of EN 292-2:1991 to EN ISO 12100-2:2003 in the following clauses: Introduction, 2, 5, 5.1.8, 5.4, Table 1, 7.1. Minor changes in clause: Foreword, 7th paragraph and in sub-clauses: 7.1.4, third indent
17、; 7.2, second and third indents. This document supersedes EN 12013:2000. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade
18、Association, and supports essential requirements of EU Directive(s). !For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document.“ According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countri
19、es are bound to implement this European Standard: 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,
20、 Sweden, Switzerland and United Kingdom. BS EN 12013:2000+A1:2008 EN 12013:2000+A1:2008 (E) 4 Introduction This European standard is a type C Standard as defined in !EN ISO 12100“ and has been elaborated by CEN/TC 145/WG7. The extent to which hazards are covered is indicated in the scope of this sta
21、ndard. In addition, machinery shall comply as appropriate with !EN ISO 12100“ for hazards which are not covered by this standard. 1 Scope This standard applies to internal mixers for rubber and plastics as defined in 3.1. The safety requirements and/or measures specified in this standard apply to al
22、l internal mixers irrespective of their size and irrespective of the control modes of the hopper front door and discharge door. The safety requirements for the design of exhaust systems and ancillary equipment are not covered by this standard. The safety requirements for the interaction between inte
23、rnal mixers and ancillary equipment are specified. This standard covers the significant hazards listed in Clause 4. This standard is not applicable to internal mixers which are manufactured before the date of publication of this standard by CEN. 2 Normative references This European standard incorpor
24、ates provisions from other publications by dated or undated references. These normative references are cited at the appropriate places in the text and the publications are listed below. For dated references, subsequent amendments or revisions of these publications apply to the European standard only
25、 when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies (including amendments). !deleted text“ EN 294:1992, Safety of Machinery- Safety distances to prevent danger zones being reached by the upper limbs EN 418:1992, Safety
26、of Machinery - Emergency stop equipment, functional aspects - Principles for design EN 563, Safety of Machinery - Temperatures of touchable surfaces - Ergonomics data to establish temperature limit values for hot surfaces EN 574:1996, Safety of Machinery - Two-hand control devices - Functional aspec
27、ts - Principles for design EN 811, Safety of Machinery - Safety distances to prevent danger zones being reached by the lower limbs EN 953:1997, Safety of Machinery - Guards - General requirements for the design and construction of fixed and moveable guards EN 954-1:1996, Safety of Machinery - Safety
28、-related parts of control systems - Part 1: General principles for design BS EN 12013:2000+A1:2008 EN 12013:2000+A1:2008 (E) 5 EN 982, Safety of Machinery - Safety requirements for fluid power systems and their components - Hydraulics EN 983, Safety of Machinery - Safety requirements for fluid power
29、 systems and their components - Pneumatics EN 999, Safety of Machinery - The positioning of protective equipment in respect of approach speeds of parts of the human body EN 1037, Safety of Machinery - Prevention of unexpected start-up EN 1088:1995, Safety of Machinery - Interlocking devices associat
30、ed with guards - Principles for design and selection EN 1127-1, Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and methodology EN 60079-14, Electrical apparatus for explosive gas atmospheres - Part 14: Electrical installations in hazardous areas (other than mine
31、s) (IEC 60079-14:1996) EN 60204-1:1997, Safety of Machinery - Electrical equipment of machines - Part 1: General requirements (IEC 60204-1:1997) prEN 60204-11:1998, Safety of machinery - Electrical equipment of machines - Part 11: General requirements for voltages above 1000 Va.c. or 1500 Vd.c and n
32、ot exceeding 36 kV EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989) EN 61310-1, Safety of Machinery - Indication, marking and actuation - Part 1: Requirements for visual, auditory and tactile signals (IEC 61310-1:1995) EN ISO 4871, Acoustics - Declaration and ve
33、rification of noise emission values of machinery and equipment (ISO 4871:1996) EN ISO 11202, Acoustics - Noise emitted by machinery and equipment Measurement of emission sound pressure levels at a work station and at other specified positions - Survey method in situ (ISO 11202:1995) EN ISO 11688-1,
34、Acoustics - Recommended practice for the design of low-noise machinery and equipment - Part 1: Planning (ISO/TR 11688-1:1995) !EN ISO 11688-2, Acoustics - Recommended practice for the design of low-noise machinery and equipment - Part 2: Introduction to the physics of low-noise design (ISO/TR 11688-
35、2:1998)“ !EN ISO 12100-1:2003, Safety of machinery - Basic concepts, general principles for design - Part 1: Basic terminology, methodology (ISO 12100-1:2003) EN ISO 12100-2:2003, Safety of machinery - Basic concepts, general principles for design - Part 2: Technical principles (ISO 12100-2:2003)“ !
36、EN ISO 14122-1, Safety of machinery - Permanent means of access to machinery - Part 1: Choice of fixed means of access between two levels (ISO 14122-1:2001) EN ISO 14122-2, Safety of machinery - Permanent means of access to machinery - Part 2: Working platforms and walkways (ISO 14122-2:2001) EN ISO
37、 14122-3, Safety of machinery - Permanent means of access to machinery - Part 3: Stairs, stepladders and guard-rails (ISO 14122-3:2001) EN ISO 14122-4, Safety of machinery - Permanent means of access to machinery - Part 4: Fixed ladders (ISO 14122-4:2004)“ BS EN 12013:2000+A1:2008 EN 12013:2000+A1:2
38、008 (E) 6 CENELEC Report R-044-001, Safety of Machinery - Guidance and recommendations for the avoidance of hazards due to static electricity 3 Definitions For the purposes of this standard the following definitions apply: 3.1 internal mixer A mixing machine for the discontinuous production of rubbe
39、r or plastic compounds. Its main parts are (Figure 1): two counter rotating horizontal rotors (a) within a mixing chamber (b); a feed hopper (c) with several openings:- at the feed side, a feed opening equipped with a door (hopper front door) (d); at the side opposite to the feed side, an inspection
40、/access opening (hopper rear opening) equipped with a fixed or moveable guard (hopper rear door) (e); possible additional feed openings for connection to feeding ducts (f); a floating weight which applies pressure to the materials to be mixed (g); a drop type or sliding type discharge door (h). BS E
41、N 12013:2000+A1:2008 EN 12013:2000+A1:2008 (E) 7 Figure 1 Principal parts of an internal mixer BS EN 12013:2000+A1:2008 EN 12013:2000+A1:2008 (E) 8 3.2 ancillary equipment Equipment which interacts with the internal mixer. For the purposes of this standard this includes upstream and downstream equip
42、ment. Examples: belt conveyors, bin tippers, powder or liquid feeding systems, two-roll mills, extruders. 3.3 major cleaning a cleaning operation which requires suspension of production, the mixer to be emptied and access to the mixing chamber 4 List of hazards 4.1 Mechanical hazards The significant
43、 mechanical hazards which are specifically associated with internal mixers are described in 4.1.1 to 4.1.6; the significant mechanical hazards which are not specifically associated with internal mixers are described in 4.1.7 and 4.1.8. The mechanical hazards associated with major cleaning, maintenan
44、ce and repair operations are included in 4.8. 4.1.1 Hazards in the loading area (Figure 2) 4.1.1.1 Hazards due to power operated movement of the hopper front door, automatically or manually controlled a) Closing movement Hazards of shearing and/or crushing between the door and the edges of the feed
45、opening (location a). See also 4.1.3 c). b) Opening movement Hazards of crushing between the hopper front door and fixed parts, particularly its stops (location b). 4.1.1.2 Hazards through the feed opening a) Hazards of severing, shearing and/or crushing due to movement of the floating weight betwee
46、n the floating weight and the fixed bridge member or upper edge of the feed opening on the upstroke of the floating weight (location c); between the floating weight and the lower edge of the feed opening on the downstroke of the floating weight (location d). b) Hazards of severing, shearing and/or c
47、rushing between the rotors, or between the rotors and the walls of the mixing chamber (location e) in the case of: reaching through the opening; falling through the opening. c) Hazards of injury to the eyes or skin in the case of splashing of process oil from the fluid injectors (location f). BS EN
48、12013:2000+A1:2008 EN 12013:2000+A1:2008 (E) 9 4.1.1.3 Hazard of entanglement with strip-fed material (location g) 4.1.2 Hazards through the additional feed openings (Figure 2) a) Hazards of severing, shearing and/or crushing between the floating weight and the edges of these openings (location h);
49、b) Hazards of severing, shearing and/or crushing between the rotors or between the rotors and the walls of the mixing chamber (location i); c) Hazards of injury to the eyes or skin in the case of splashing of process oil from the fluid injectors (location j). BS EN 12013:2000+A1:2008 EN 12013:2000+A1:2008 (E) 10 Figure 2 Locations of the mechanical hazards in the loading area and at the additional feed openings
