BS PD CEN TR 16829-2016 Fire and explosion prevention and protection for bucket elevators《斗式升运机的防火和防爆》.pdf
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1、PD CEN/TR 16829:2016 Fire and explosion prevention and protection for bucket elevators BSI Standards Publication WB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06PD CEN/TR 16829:2016 PUBLISHED DOCUMENT National foreword This Published Document is the UK implementation of CEN/TR 16829:2016. Ea
2、rlier guidance on protection of bucket elevators from internal dust explosions was based on large scale experimental work carried out by the Health and Safety Laboratory and was published in the I Chem E guide to dust explosions. Since then many bucket elevators have been fitted with explosion prote
3、ction based on this advice, as a result the number of explosions in bucket elevators has reduced in recent years. This seems likely to be the consequence of improved controls over ignition sources in the elevators, as described in this TR. The UK committee cannot see a justification for retrofitting
4、 older elevators built to I Chem E guidelines in order to meet the venting advice in this TR. Moreover, provided the details of an installation closely follow that used in the HSL research, a bucket elevator fitted with vents according to the I Chem E guide, and other features as described in this T
5、R, then it should meet the requirements of DSEAR, and the reasonably practical precautions required by the HSW Act. The Approved Code of Practice and further guidance on the Regulations can be found in HSE publication L138. The UK participation in its preparation was entrusted to Technical Committee
6、 EXL/23/1, Flame arresters. 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. The British Standards Institution
7、 2016. Published by BSI Standards Limited 2016 ISBN 978 0 580 89235 6 ICS 13.220.40; 13.230; 53.040.10 Compliance with a British Standard cannot confer immunity from legal obligations. This Published Document was published under the authority of the Standards Policy and Strategy Committee on 3 1 Oct
8、ober 2016. Amendments/corrigenda issued since publication Date Text affectedPD CEN/TR 16829:2016TECHNICAL REPORT RAPPORT TECHNIQUE TECHNISCHER BERICHT CEN/TR 16829 August 2016 ICS 13.220.40; 13.230; 53.040.10 English Version Fire and explosion prevention and protection for bucket elevators Prvention
9、 et protection contre lincendie et lexplosion des lvateurs godets Brand- und Explosionsschutz fr Becherwerke This Technical Report was approved by CEN on 13 July 2015. It has been drawn up by the Technical Committee CEN/TC 305. CEN members are the national standards bodies of Austria, Belgium, Bulga
10、ria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Tur
11、key and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members.
12、Ref. No. CEN/TR 16829:2016 EPD CEN/TR 16829:2016 CEN/TR 16829:2016 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 5 4 Bucket elevators 6 4.1 General 6 4.2 Bucket elevator types 6 5 Fire and explosion hazards 6 5.1 General 6 5.2 Explosion hazard
13、s . 7 5.2.1 Presence of explosive atmospheres . 7 5.2.2 Presence of potential ignition sources 8 5.2.3 Effect of ignition: smouldering product, fire, explosion, propagation of explosion 10 5.2.4 Risk assessment 10 5.3 Fire hazards 10 6 Fire and explosion prevention and protection of bucket elevators
14、 11 6.1 General . 11 6.2 Fire prevention and protection . 12 6.2.1 Fire prevention . 12 6.2.2 Fire protection 12 6.3 Explosion prevention and protection . 13 6.3.1 Prevention of explosive atmospheres 13 6.3.2 Prevention of ignition sources 14 6.3.3 Protective measures . 19 7 Information for use . 19
15、 7.1 Markings 21 Annex A (informative) Examples/types of bucket elevators . 22 Annex B (informative) Guidance on explosion venting . 28 Annex C (informative) Guidance on explosion suppression 33 Annex D (informative) Example of an ignition hazard assessment 36 Annex E (informative) Example of a name
16、plate . 61 Annex F (informative) Guidance for assessing the probability of generating explosive atmospheres 62 Bibliography . 63 PD CEN/TR 16829:2016 CEN/TR 16829:2016 (E) 3 European foreword This document (CEN/TR 16829:2016) has been prepared by Technical Committee CEN/TC 305 “Potentially explosive
17、 atmospheres Explosion prevention and protection”, the secretariat of which is held by DIN. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent ri
18、ghts. PD CEN/TR 16829:2016 CEN/TR 16829:2016 (E) 2PD CEN/TR 16829:2016 CEN/TR 16829:2016 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 5 4 Bucket elevators 6 4.1 General 6 4.2 Bucket elevator types 6 5 Fire and explosion hazards 6 5.1 General
19、6 5.2 Explosion hazards . 7 5.2.1 Presence of explosive atmospheres . 7 5.2.2 Presence of potential ignition sources 8 5.2.3 Effect of ignition: smouldering product, fire, explosion, propagation of explosion 10 5.2.4 Risk assessment 10 5.3 Fire hazards 10 6 Fire and explosion prevention and protecti
20、on of bucket elevators 11 6.1 General . 11 6.2 Fire prevention and protection . 12 6.2.1 Fire prevention . 12 6.2.2 Fire protection 12 6.3 Explosion prevention and protection . 13 6.3.1 Prevention of explosive atmospheres 13 6.3.2 Prevention of ignition sources 14 6.3.3 Protective measures . 19 7 In
21、formation for use . 19 7.1 Markings 21 Annex A (informative) Examples/types of bucket elevators . 22 Annex B (informative) Guidance on explosion venting . 28 Annex C (informative) Guidance on explosion suppression 33 Annex D (informative) Example of an ignition hazard assessment 36 Annex E (informat
22、ive) Example of a nameplate . 61 Annex F (informative) Guidance for assessing the probability of generating explosive atmospheres 62 Bibliography . 63 PD CEN/TR 16829:2016 CEN/TR 16829:2016 (E) 3 European foreword This document (CEN/TR 16829:2016) has been prepared by Technical Committee CEN/TC 305
23、“Potentially explosive atmospheres Explosion prevention and protection”, the secretariat of which is held by DIN. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any
24、 or all such patent rights. PD CEN/TR 16829:2016 CEN/TR 16829:2016 (E) 3PD CEN/TR 16829:2016 CEN/TR 16829:2016 (E) 4 1 Scope This European Technical Report applies to bucket elevators that may handle combustible products capable of producing potentially explosive atmospheres of dust or powder inside
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