DIN EN 15415-2-2012 Solid recovered fuels - Determination of particle size distribution - Part 2 Maximum projected length method (manual) for large dimension particles German versi.pdf

1、June 2012 Translation by DIN-Sprachendienst.English price group 9No 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

2、.160.10!$|t“1898191www.din.deDDIN EN 15415-2Solid recovered fuels Determination of particle size distribution Part 2: Maximum projected length method (manual) for large dimensionparticlesEnglish translation of DIN EN 15415-2:2012-06Feste Sekundrbrennstoffe Bestimmung der Partikelgrenverteilung Teil

3、2: Manuelles Verfahren zur Bestimmung der grten projizierten Lnge fr groePartikelEnglische bersetzung von DIN EN 15415-2:2012-06Combustibles solides de rcupration Dtermination de la distribution granulomtrique Partie 2: Mthode (manuelle) de projection de la longueur maximale des particules degrande

4、dimensionTraduction anglaise de DIN EN 15415-2:2012-06www.beuth.deDocument comprises 14 pagesIn case of doubt, the German-language original shall be considered authoritative.05.12 DIN EN 15415-2:2012-06 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Tec

5、hnical Committee CEN/TC 343 “Solid recovered fuels” (Secretariat: SFS, Finland). The responsible German body involved in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committee), Working Committee NA 062-05-83 AA Sekundrbrennstoffe. The DIN Standards correspondi

6、ng to the International Standards referred to in this document are as follows: ISO 565 DIN ISO 565 ISO 3310-1 DIN ISO 3310-1 ISO 3310-2 DIN ISO 3310-2 National Annex NA (informative) Bibliography DIN ISO 565, Test sieves Metal wire cloth, perforated metal plate and electroformed sheet Nominal sizes

7、of openings DIN ISO 3310-1, Test sieves Technical requirements and testing Part 1: Test sieves of metal wire cloth DIN ISO 3310-2, Test sieves Technical requirements and testing Part 2: Test sieves of perforated plates EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15415-2 April 2012 ICS 75.16

8、0.10 English Version Solid recovered fuels - Determination of particle size distribution -Part 2: Maximum projected length method (manual) for large dimension particles Combustibles solides de rcupration - Dtermination de la distribution granulomtrique - Partie 2: Mthode (manuelle) de projection de

9、la longueur maximale des particules de grande dimension Feste Sekundrbrennstoffe - Bestimmung der Partikelgrenverteilung - Teil 2: Manuelles Verfahren zur Bestimmung der grten projizierten Lnge fr groe Partikel This European Standard was approved by CEN on 9 March 2012. CEN members are bound to comp

10、ly 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 obtained on application to the CEN-CENELEC

11、 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-CENELEC Management Centre has the sa

12、me status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, P

13、ortugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and b

14、y any means reserved worldwide for CEN national Members. Ref. No. EN 15415-2:2012: EEN 15415-2:2012 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Terms and definitions .54 List of symbols and abbreviations .65 Principle 65.1 Principle of sampling 65.2 Principle of t

15、he determination of dimension 76 Apparatus .87 Procedure .87.1 Preparation of the sampling plan .87.2 Procedure for taking the field sample and producing the laboratory sample(s) 87.3 Procedure for quantification of maximum projected length .98 Precision 109 Test report . 10Bibliography . 12DIN EN 1

16、5415-2:2012-06 EN 15415-2:2012 (E) 3 Foreword This document (EN 15415-2:2012) has been prepared by Technical Committee CEN/TC 343 “Solid recovered fuels”, the secretariat of which is held by SFS. This European Standard shall be given the status of a national standard, either by publication of an ide

17、ntical text or by endorsement, at the latest by October 2012, and conflicting national standards shall be withdrawn at the latest by October 2012. 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 hel

18、d responsible for identifying any or all such patent rights. EN 15415, Solid recovered fuels Determination of particle size distribution, consists of the following parts: Part 1: Screen method for small dimension particles Part 2: Maximum projected length method (manual) for large dimension particle

19、s Part 3: Method by image analysis for large dimension particles According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Est

20、onia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 15415-2:2012-06 EN 15415-2:2012 (E) 4 Introduction Thi

21、s document is dedicated to outlining a manual method for characterizing the size of pieces of solid recovered fuel (SRF) that exhibit an irregular shape and are generally large in size. Typical examples are shredded, end-of-life tyres and demolition woods. When such products reach the end-of-life st

22、age, they continue to exhibit the very strong mechanical properties for which they were designed and fabricated. For instance, tyres are designed and fabricated to withstand cutting. Therefore, it is wise to minimise shredding when producing SRF from these end-of-life productsThis results in a gener

23、al production of SRF pieces exhibiting an irregular shape and large size. These SRF pieces cannot be characterised using the sieving method specified in EN 15415-1 which utilises well-known distribution curves and a series of test sieves. Consequently, the method specified in this document is a manu

24、al method based on the determination of the maximum projected length and accompanied by an appropriate statistical evaluation. This maximum projected length approach is needed for the sake of testing; but it is mainly needed to facilitate the use of these solid recovered fuels. Safe transportation (

25、e.g. with a conveyer) and introduction into the combustion zone are dependent on the design and operations adapted to such maximum length. In this document, the maximum projected length is determined without considering the filaments protruding from the SRF pieces (see 3.1). In EN 15415-3, an image

26、analysis method is specified which allows the characterisation of these filaments protruding from shredded tyre pieces. This document is based on CEN/TS 14243, AFNOR XP T47-751 and AFNOR XP T47-756. DIN EN 15415-2:2012-06 EN 15415-2:2012 (E) 5 1 Scope This European Standard specifies the determinati

27、on of particle size distribution of solid recovered fuels. It establishes a manual method for the determination of the maximum projected length for large dimension particles. It applies to both agglomerated and non-agglomerated solid recovered fuel pieces exhibiting an irregular shape, such as shred

28、ded end-of-life tyres and demolition woods. This document does not apply to filaments protruding from the SRF pieces. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only

29、 the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 15357:2011, Solid recovered fuels Terminology, definitions and descriptions ISO 565, Test sieves Metal wire cloth, perforated metal plate and electroformed sheet N

30、ominal sizes of openings ISO 3310-1 Test sieves Technical requirements and testing Part 1: Test sieves of metal wire cloth 3 Terms and definitions For the purpose of this document, the terms and definitions given in EN 15357:2011 and the following apply: 3.1 filaments filiform parts protruding from

31、pieces of a solid recovered fuel (SRF), generally of a metallic and/or textile nature 3.2 format of a large piece of SRF format based on the distribution of the maximum projected length DIN EN 15415-2:2012-06 EN 15415-2:2012 (E) 6 4 List of symbols and abbreviations The following symbols and abbrevi

32、ations are used in this document: LDF Lower dimension of the format (mm) HDF Higher dimension of the format (mm) L Maximum projected length MS Mass of the laboratory sample (kg) MF Mass of the fine pieces (kg) MLM Mass of the loose metal wires NCC Number of central classes NCR Number of classes in t

33、he range from LDF to HDF TNP Total number of pieces in the sample not including the fine pieces MPF Mass percentage of the fine pieces MPM Mass percentage of the loose metal wires NPL Number percentage of large pieces MPL Mass percentage of large pieces (optional) NPC Number percentage of NCC MPC Ma

34、ss percentage of NCC (optional) SRF Solid recovered fuel NOTE In this document “mass percentage“ is used for “mass fraction expressed as percent“ to maintain continuity with other symbols and their abbreviations that do not designate mass fractions. 5 Principle 5.1 Principle of sampling The main pri

35、nciple of sampling is to obtain a representative sample or representative samples from a whole lot (of defined material) from which a characteristic is to be determined. If the lot is to be represented by a sample, then it is necessary that every particle in the lot have an equal probability of bein

36、g included in the sample (i.e. probabilistic sampling). Whenever this principle cannot be applied in practice, the sampler shall define a procedure as close as possible to probabilistic sampling in their judgement (i.e. judgemental sampling) and note the limitations in the sampling plan and sampling

37、 report. In general, it is difficult to take samples in a way that satisfies the principle of correct sampling if a material is stationary (for example in a stockpile, big bag or silo). With regard to large pieces of irregular shape (e.g. pieces that include protruding filaments), it is necessary to

38、 take samples if the material is in movement. NOTE The determination of properties other than dimensions can result in different sampling requirements. This is the case when determining physical properties such as bulk density or chemical composition. DIN EN 15415-2:2012-06 EN 15415-2:2012 (E) 7 5.2

39、 Principle of the determination of dimension A laboratory sample of at least TNP 100 separate elements not passing through the LDF sieve is taken for the test. The mass of the laboratory sample, MS, is weighed to within 0,01 kg. Any elements consisting solely of metal wires released from the pieces

40、of solid recovered fuel are not counted in the TNP pieces. They are collected and weighed together (MLM in kilograms). After passing through a LDF sieve, the mass of the fine pieces, MF, is weighed to within 0,01 kg. The pieces not passing through the sieve (without loose metal wires) are used to de

41、termine the maximum lengths and constitute the test portion for determination purposes. Each piece of this test portion is treated individually. As these pieces are not usually flat, the largest length is defined as the largest length projected onto a plane on which the piece in question lies. This

42、length is measured to within 5 mm without deforming the piece and excluding protruding filaments. The measurements of the different maximum projected lengths, L, are used for drawing a histogram (see Figure 1) that is a characteristic of the distribution of the pieces of the test portion, i.e. the l

43、aboratory sample without the fine pieces and without the loose metal wires. This histogram consists of the large pieces (a class larger than the HDF threshold dimension of the large pieces) and NCR = 7 classes of the same width between the LDF and HDF dimensions. Figure 1 Example of a histogram The

44、following three characteristics of the histogram are extracted from these measurements: a) the number percentage of large pieces, NPL (and optionally, the mass percentage of large pieces, MPL, corresponding to the pieces larger than the higher dimension of the HDF format where HDF is one of the char

45、acteristics of the format of the product under consideration, e.g. 350 mm); b) the mass percentage of the fine pieces, MPF = 100 MF/MS (mass percentage of the pieces passing through the sieve with a mesh of LDF where LDF is one of the characteristics of the product format under consideration, e.g. 2

46、5 mm); c) the number percentage, NPC (and optionally the mass percentage, MPC) of the pieces in the number of central classes (NCC) (2-3-4-5-6) amongst the classes NCR = 7 between the lower and higher dimensions of the format (LDF and HDF). DIN EN 15415-2:2012-06 EN 15415-2:2012 (E) 8 6 Apparatus 6.

47、1 Vessel, large enough to contain at least 100 pieces; 6.2 Illuminated measurement plane, with a ruler graduated in millimetres for measurements up to 500 mm on this measurement plane; 6.3 Balance, with an accuracy of 0,01 kg; 6.4 Circular mesh sieve, in accordance with ISO 565 or ISO 3310-1, with a

48、 mesh of LDF. 7 Procedure 7.1 Preparation of the sampling plan First, the property required in the testing programme and the lot in relation to which it is defined, e.g. “maximum projected length on a SRF production of 300 Mg“, shall be identified. The lot size shall be based on management decisions about the production quality or specific customer requirements. It may be defined by the producer as a fixed quantity produc