1、BRITISH STANDARDBS EN 12012-4:2006Plastics and rubber machines Size reduction machines Part 4: Safety requirements for agglomeratorsICS 83.200g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g
2、60g3g38g50g51g60g53g44g42g43g55g3g47g36g58+A1:2008BS EN 12012-4:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 December 2006 BSI 2009National forewordThis British Standard is the UK implementation of EN 12012-4:2006+A1:2008. It supers
3、edes BS EN 12012-4:2006 which iswithdrawn.The UK participation in its preparation was entrusted by Technical Committee MCE/3, Safeguarding of machinery, to Subcommittee MCE/3/2, Rubber and plastics machine Safety.A list of organizations represented on this subcommittee can be obtained on request to
4、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 cannot confer immunity from legal obligations.Amendments/ corrigenda issued since publication+A1:2008The start a
5、nd 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 a b.ISBN 978 0 580 61058 5Date Comments 31 May 2009 Implementation of CEN am
6、endment A1:2008EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12012-4:2006+A1 September 2008 ICS 83.200 Supersedes EN 12012-4:2006 English Version Plastics and rubber machines - Size reduction machines - Part 4: Safety requirements for agglomerators Machines pour les matires plastiques et le c
7、aoutchouc - Machines fragmenter - Partie 4: Prescriptions de scurit relatives aux agglomrateurs Kunststoff- und Gummimaschinen - Zerkleinerungsmaschinen - Teil 4: Sicherheitsanforderungen fr Agglomeratoren This European Standard was approved by CEN on 11 October 2006 and includes Amendment 1 approve
8、d by CEN on 8 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 stand
9、ards 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 and notified t
10、o 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, Luxembourg, Malta, N
11、etherlands, 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: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploit
12、ation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12012-4:2006+A1:2008: EEN 12012-4:2006+A1:2008 (E) 2 Contents Page Foreword4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .7 4 List of significant hazards 8 4.1 Mechanical hazard
13、s.8 4.2 Thermal hazards 8 4.3 Noise hazards.8 4.4 Hazards generated by dust, fumes and gases .8 4.5 Hazards due to electrical energy9 4.6 Hazards due to unexpected start-up9 4.7 Falls from height9 5 Safety requirements and/or protective measures9 5.1 General9 5.2 Mechanical hazards.9 5.2.1 Access th
14、rough openings in the agglomerator chamber9 5.2.2 Feed material that is not pre-cut 9 5.2.3 Ejection of parts or materials from the agglomerator chamber .10 5.2.4 Strength 10 5.3 Thermal hazards 10 5.4 Noise hazards.10 5.4.1 Noise reduction at source by design.10 5.4.2 Noise reduction by protective
15、measures 11 5.4.3 Information connected with noise hazards.11 5.5 Hazards generated by dust, fumes and gases .11 5.6 Hazards due to electrical energy11 5.6.1 Electrical equipment11 5.6.2 Accumulation of electrostatic charges12 5.7 Unexpected start-up 12 5.8 Falls from height12 6 Verification of conf
16、ormity with the safety requirements and/or protective measures.13 7 Information for use 14 7.1 Instruction manual.14 7.2 Marking .15 Annex A (normative) Noise test code16 A.1 Scope 16 A.2 Determination of sound power levels16 A.2.1 Basic standards .16 A.2.2 Measurement uncertainty .16 A.3 Determinat
17、ion of emission sound pressure level at the workstation(s)17 A.3.1 Basic standards .17 A.3.2 Measurement uncertainty .17 A.4 Installation and mounting conditions for the noise measurement 17 A.5 Operating conditions.17 A.6 Information to be recorded and reported18 A.6.1 General18 BS EN 12012-4:2006+
18、A1:2008EN 12012-4:2006+A1:2008 (E) 3 A.6.2 General agglomerator data.18 A.6.3 Agglomerator chamber data.18 A.6.4 Standards .18 A.6.5 Noise data.18 A.6.6 Specified test parameters.19 A.6.7 Installation and operating conditions .19 A.7 Declaration and verification of noise emission values .19 Annex ZA
19、 (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC20 Annex ZB (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC“21 Bibliography22 BS EN 12012-4:2006+A1:2008EN 12012-4:20
20、06+A1:2008 (E) 4 Foreword This document (EN 12012-4:2006+A1:2008) has been prepared by Technical Committee CEN/TC 145 “Plastics and rubber machines”, the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by publication of an identica
21、l text or by endorsement, at the latest by March 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: addition of Annex ZB minor changes of
22、 Foreword, sub-clause 7.2, second and third indents, Annex A, A.7, 2nd indent. This document supersedes EN 12012-4:2006. 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 C
23、ommission and the European Free Trade Association, and supports essential requirements of EU Directive. !For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document.“ This is the fourth in a series of standards on the safety of size reduction m
24、achines. Part 1 deals with blade granulators. Part 2 deals with strand pelletisers. Part 3 deals with shredders. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgari
25、a, 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. BS EN 12012-4:2006+A1:2008EN 12012
26、-4:2006+A1:2008 (E) 5 Introduction This European Standard is a type C standard as stated in EN ISO 12100:2003. The machinery concerned and the extent to which hazards, hazardous situations and events are covered are indicated in the scope of this European Standard. When provisions of this type C sta
27、ndard are different from those that are stated in type A or B standards, the provisions of this type C standard take precedence over the provisions of the other standards, for machines that have been designed and built in accordance with the provisions of this type C standard. BS EN 12012-4:2006+A1:
28、2008EN 12012-4:2006+A1:2008 (E) 6 1 Scope This European Standard specifies the essential safety requirements applicable to the design and construction of agglomerators used to densify plastic scrap, reducing its size and/or volume. The limits of the agglomerator are as follows: the outer edge of the
29、 feed opening, or outer edge of the fixed feed device (e.g. hopper) or the interface between the feed system (e.g. conveyor) and the agglomerator chamber and the outer edge of the discharge opening of the agglomerator chamber or the interface between the agglomerator chamber and the discharge system
30、. Only the significant hazards listed in Clause 4 and dealt with in Clause 5 are subject to this European Standard. This European Standard does not deal with hazards caused by processing materials (such as Expanded Polystyrene (EPS) and Polyurethane (PU) foam) which, when heated, may lead to a risk
31、of fire and release of toxic gases. This European Standard does not deal with hazards caused by upstream and/or downstream equipment. This European Standard is not applicable to agglomerators manufactured before the date of its approval as EN. 2 Normative references The following referenced document
32、s are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 294:1992, Safety of machinery Safety distances to prevent danger zones being re
33、ached by the upper limbs EN 418:1992, Safety of machinery Emergency stop equipment, functional aspects Principles for design EN 811:1996, 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
34、 design and construction of fixed and moveable guards EN 954-1:1996, Safety of machinery Safety-related parts of control systems Part 1: General principles for design EN 1037:1995, Safety of machinery Prevention of unexpected start-up EN 1088:1995, Safety of machinery Interlocking devices associated
35、 with guards Principles for design and selection EN 60204-1:2006, Safety of machinery Electrical equipment of machines Part 1: General requirements (IEC 60204-1:2005 modified) BS EN 12012-4:2006+A1:2008EN 12012-4:2006+A1:2008 (E) 7 EN ISO 4871:1996, Acoustics Declaration and verification of noise em
36、ission values of machinery and equipment (ISO 4871:1996) EN ISO 9614-1:1995, Acoustics Determination of sound power levels of noise sources using sound intensity Part 1: Measurement at discrete points (ISO 9614-1:1993) EN ISO 9614-2:1996, Acoustics Determination of sound power levels of noise source
37、s using sound intensity Part 2: Measurement by scanning (ISO 9614-2:1996) 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 d
38、esign Part 2: Technical principles (ISO 12100-2:2003) EN ISO 13732-1:2006, Ergonomics of the thermal environment - Methods for the assessment of human responses to contact with surfaces - Part 1: Hot surfaces (ISO 13732-1:2006) EN ISO 14122-1:2001, Safety of machinery Permanent means of access to ma
39、chinery Part 1: Choice of fixed means of access between two levels (ISO 14122-1:2001) EN ISO 14122-2:2001, Safety of machinery Permanent means of access to machinery Part 2: Working platforms and walkways (ISO 14122-2:2001) EN ISO 14122-3:2001, Safety of machinery Permanent means of access to machin
40、ery Part 3: Stairs, stepladders and guard-rails (ISO 14122-3:2001) EN ISO 14122-4:2004, Safety of machinery Permanent means of access to machinery Part 4: Fixed ladders (ISO 14122-4:2004) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 12100-1:200
41、3 and the following apply. 3.1 agglomerator machine (sometimes called densifier) for reducing the size and volume of thermoplastic scrap in a chamber. The material is cut or kneaded, mixed, heated by friction and, thus, densified, if required by using water. Feeding the scrap can be by hand or by fe
42、ed system 3.2 opening in the agglomerator chamber opening designed and constructed for feeding the material, discharging the material, inspecting the process inside the agglomerator chamber and/or maintaining the blades 3.3 blade cutting/kneading tool, that can be fixed or rotating and is used to cu
43、t/knead and heat by friction the material being processed 3.4 feed system power operated equipment (conveyor belts, nip roll feeders, feed screws etc.) used to feed the agglomerator BS EN 12012-4:2006+A1:2008EN 12012-4:2006+A1:2008 (E) 8 3.5 fixed feed device non power operated equipment (hopper, fe
44、ed table etc.) used to feed the agglomerator 3.6 discharge system power operated equipment such as extruder, output slides etc. used to discharge the material from the agglomerator chamber 4 List of significant hazards 4.1 Mechanical hazards The following can generate hazards: crushing/shearing betw
45、een the rotating blades and fixed blades or housing; cutting/severing by the rotating and fixed blades; crushing/shearing by the moving discharge systems; crushing/shearing by the feed system; entanglement by the material and being drawn into the agglomerator chamber in the case of material that has
46、 not been pre-cut before being fed into the agglomerator; falling into the agglomerator chamber through the feed opening; ejection of materials from the agglomerator chamber. 4.2 Thermal hazards Contact with: hot materials ejected or falling out of openings; steam ejected from openings where water i
47、s used; hot materials inside the agglomerator chamber; hot external surfaces of the agglomerator chamber. 4.3 Noise hazards Noise can result in deafness, physiological disorders, accidents due to interference with auditory signals and speech communication. Main noise sources on agglomerators are the
48、 agglomerating process, motors and transmission components. 4.4 Hazards generated by dust, fumes and gases Contact with, or inhalation of, dust, fumes or gases escaping from the openings. BS EN 12012-4:2006+A1:2008EN 12012-4:2006+A1:2008 (E) 9 4.5 Hazards due to electrical energy Electric shock or b
49、urns caused by direct contact with live conductive parts, or with parts that have become live due to electrical fault. Electric shock due to accumulation of electrostatic charge. 4.6 Hazards due to unexpected start-up 4.7 Falls from height Falling hazards due to slipping or tripping on working platforms, steps or walkways in accessible areas of the machine. 5 Safety requirements and/or protective measures 5.1 General Machinery shall comply with the safety requirements and/or protecti
