1、May 2016 English price group 10No part of this translation 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 75.160.10!%UVx“2505185www.din.deDIN
2、EN ISO 17831-2Solid biofuels Determination of mechanical durability of pellets and briquettes Part 2: Briquettes (ISO 17831-2:2015);English version EN ISO 17831-2:2015,English translation of DIN EN ISO 17831-2:2016-05Biogene Festbrennstoffe Bestimmung der mechanischen Festigkeit von Pellets und Brik
3、etts Teil 2: Briketts (ISO 17831-2:2015);Englische Fassung EN ISO 17831-2:2015,Englische bersetzung von DIN EN ISO 17831-2:2016-05Biocombustibles solides Dtermination de la rsistance mcanique des granuls et des briquettes Partie 2: Briquettes (ISO 17831-2:2015);Version anglaise EN ISO 17831-2:2015,T
4、raduction anglaise de DIN EN ISO 17831-2:2016-05SupersedesDIN EN 15210-2:2011-01www.beuth.deDocument comprises 15 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.05.16 DIN EN ISO 17831-2:2016-05 2 A comma is used as the decimal
5、 marker. National foreword This document (EN ISO 17831-2:2015) has been prepared by Technical Committee ISO/TC 238 “Solid biofuels” in collaboration with Technical Committee CEN/TC 335 “Solid biofuels” (Secretariat: SIS, Sweden). The responsible German body involved in its preparation was DIN-Normen
6、ausschuss Materialprfung (DIN Standards Committee Materials Testing), Working Committee NA 062-05-82 AA Biogene Festbrennstoffe. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 3310-1 DIN ISO 3310-1 ISO 14780 E DIN EN ISO 14780 ISO 1655
7、9 DIN EN ISO 16559 ISO 17225-1 DIN EN ISO 17225-1 ISO 18134-1 DIN EN ISO 18134-1 ISO 18134-2 DIN EN ISO 18134-2 ISO 18135 E DIN EN ISO 18135 Amendments This standard differs from DIN EN 15210-2:2011-01 as follows: a) the content of EN ISO 17831-2 (based on EN 15210-2) has been adopted in full; b) th
8、e German translation of “solid biofuels” has been changed throughout the document from Feste Biobrennstoffe to Biogene Festbrennstoffe; c) references to EN Standards have been replaced by references to the relevant ISO Standards and have been updated; d) Clause 5 “Apparatus” has been revised; e) the
9、 standard has been editorially revised. Previous editions DIN CEN/TS 15210-2: 2006-03, 2006-07 DIN EN 15210-2: 2011-01 DIN EN ISO 17831-2:2016-05 3 National Annex NA (informative) Bibliography E DIN EN ISO 14780, Solid biofuels Sample preparation DIN EN ISO 16559, Solid biofuels Terminology, definit
10、ions and description DIN EN ISO 17225-1, Solid biofuels Fuel specifications and classes Part 1: General requirements DIN EN ISO 18134-1, Solid biofuels Determination of moisture content Oven dry method Part 1: Total moisture Reference method DIN EN ISO 18134-2, Solid biofuels Determination of moistu
11、re content Oven dry method Part 2: Total moisture Simplified method E DIN EN ISO 18135, Solid biofuels Sampling DIN ISO 3310-1, Test sieves Technical requirements and testing Part 1: Test sieves of metal wire cloth DIN EN ISO 17831-2:2016-05 4 This page is intentionally blank EUROPEAN STANDARD NORME
12、 EUROPENNE EUROPISCHE NORM EN ISO 17831-2 December 2015 ICS 75.160.10; 27.190 Supersedes EN 15210-2:2010English Version Solid biofuels - Determination of mechanical durability of pellets and briquettes - Part 2: Briquettes(ISO 17831-2:2015) Biocombustibles solides - Dtermination de la rsistance mcan
13、ique des granuls et des briquettes - Partie 2: Briquettes (ISO 17831-2:2015) Feste Biobrennstoffe - Bestimmung der mechanischen Festigkeit von Pellets und Briketts - Teil 2: Briketts (ISO 17831-2:2015) This European Standard was approved by CEN on 27 November 2015. CEN members are bound to comply wi
14、th 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 obtained on application to the CEN-CENELEC Mana
15、gement 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-CENELEC Management Centre has the same st
16、atus as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Mal
17、ta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN
18、 All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 17831-2:2015 E-European foreword .3Introduction 51 Scope . 62 Normative references 63 Terms and definitions . 64 Principle 65 Apparatus . 75.1 Briquette tester. 75.2 Sieve . 85.3 Bal
19、ance . 86 Test sample preparation 87 Procedure. 97.1 Tumbling procedure . 97.2 Sieving procedure . 98 Calculation of the mechanical durability 109 Performance characteristics 1010 Test report . 10Bibliograpy 11Contents PageDIN EN ISO 17831-2:2016-05 EN ISO 17831 2:2015 (E)-2Foreword .4European forew
20、ord This document (EN ISO 17831-2:2015) has been prepared by Technical Committee ISO/TC 238 “Solid biofuels“ in collaboration with Technical Committee CEN/TC 335 “Solid biofuels” the secretariat of which is held by SIS. This European Standard shall be given the status of a national standard, either
21、by publication of an identical text or by endorsement, at the latest by June 2016, and conflicting national standards shall be withdrawn at the latest by June 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELE
22、C shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 15210-2:2010. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. According to the CEN-CENELEC Internal Regulations,
23、 the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, La
24、tvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 17831-2:2015 has been approved by CEN as EN ISO 17831-2:2015 without any modification. DIN EN ISO 1783
25、1-2:2016-05 EN ISO 17831 2:2015 (E)-3 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body
26、interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotech
27、nical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO d
28、ocuments should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held respon
29、sible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given f
30、or the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following UR
31、L: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 238, Solid biofuels.ISO 17831 consists of the following parts under the general title Solid Biofuels Determination of mechanical durability of pellets and briquettes: Part 1: Pellets Part 2: BriquettesDIN EN
32、 ISO 17831-2:2016-05 EN ISO 17831 2:2015 (E)-4 IntroductionCompressed solid biomass fuel is usually assigned to either pellets or briquettes, of which pellets usually have a diameter below 25 mm, while for briquettes, the diameter is higher (see ISO 17225-1). To account for the different particle di
33、mensions, it was necessary to define different test apparatuses.DIN EN ISO 17831-2:2016-05 EN ISO 17831 2:2015 (E)-5 1 ScopeThis part of ISO 17831 defines a method for determining the mechanical durability of briquettes. The mechanical durability is a measure of the resistance of compressed fuels to
34、wards shocks and/or abrasion as a consequence of handling and transportation.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated re
35、ferences, the latest edition of the referenced document (including any amendments) applies.ISO 3310-1, Test sieves Technical requirements and testing Part 1: Test sieves of metal wire clothISO 14780, Solid biofuels Sample preparation1)ISO 16559, Solid biofuels Terminology, definitions and descriptio
36、nsISO 18134-1, Solid biofuels Determination of moisture content Oven dry method Part 1: Total moisture Reference methodISO 18134-2, Solid biofuels Determination of moisture content Oven dry method Part 2: Total moisture Simplified methodISO 18135, Solid Biofuels Sampling1)3 Terms and definitionsFor
37、the purpose of this document, the terms and definitions given in ISO 16559 apply.4 PrincipleThe test portion is subjected to controlled shocks by collision of briquettes against each other and against the walls of a specified rotating test chamber. The durability is calculated from the mass of the s
38、ample remaining after separation of abraded and fine broken particles.1) In preparation.DIN EN ISO 17831-2:2016-05 EN ISO 17831 2:2015 (E)-6 5 Apparatus5.1 Briquette testerThe briquette tester (durability drum) shall be a cylindrical steel drum with a nominal volume of 160 l, having the following di
39、mensions (see Figure 1): internal length or depth: (598 8) mm; internal diameter: (598 8) mm.The drum shall be made of minimum 1 mm steel plate. The internal surface area of the drum shall be smooth and any disturbances of the surface such as ridges or furrows shall be avoided.The durability drum sh
40、all be equipped with a rectangular steel baffle having the following dimensions: length: (598 8) mm; height: (200 2) mm; thickness: 2 mm.The baffle shall be welded on its length to the full height of the internal curved surface of the drum, parallel to the axis of the drum and perpendicular to the t
41、angent of the curve. The baffle tip shall be shaped in a smooth curve of 90 to obtain a rim perpendicular to the baffle. The curve shall have a radius of r = 10 mm and the curved tip shall have a total vertical height of 30 mm. The direction of rotation and further details are illustrated in Figure
42、1.The drum is open on one of the ends. This opening shall be fitted with a dustproof lid of the same diameter as the internal diameter of the drum (598 8) mm. When the lid is in position, it shall be approximately flush with the side of the cylinder. This lid shall be made of minimum 1 mm steel plat
43、e.It shall be possible to fasten the lid securely by four rotating bolts (or any other suitable mechanism) fixed on the external part of the drum.The drum shall be capable of being constantly driven at (21 0,1) r/min by an electric motor, by suitable pulleys or gearings, in order to avoid vibrations
44、. A rotation counter should be connected to the drum.The rotation counter can also be connected to the motor so that the latter is automatically switched off after a defined number of rotations.DIN EN ISO 17831-2:2016-05 EN ISO 17831 2:2015 (E)-7 Dimensions en millimtresKey1 drum2 baffle3 motorFigur
45、e 1 Principle of the durability drum5.2 SieveDepending on the briquette diameter, a sieve with a metal wire cloth conforming to ISO 3310-1 shall be chosen so that the aperture size is approximately equivalent to 2/3 of the briquettes diameter or diagonal but not exceeding 45 mm. The sieve is selecte
46、d from the series between 16 mm and 45 mm in accordance with ISO 3310-1. The sieve shall have a diameter of 400 mm or above.5.3 BalanceA balance with a weighing capability of at least 2 kg and capable of measuring the mass to the nearest 0,1 g.6 Test sample preparationThe laboratory sample used for
47、the determination of mechanical durability shall be obtained, and if necessary, divided in mass in accordance with ISO 18135 and prepared in accordance with ISO 14780. The size of the laboratory sample shall conform to the requirements of this part of ISO 17831 (depending on the nominal top size) bu
48、t shall be at least 25 kg. For briquettes of type A, as defined in Table 1, the minimum required laboratory sample mass shall be 10 kg.Divide the laboratory sample to obtain two test samples: one to be used for moisture content determination (5 kg), as received, the other for the mechanical durability test. Th
