ISO 616-1995 Coke - Determination of shatter indices《焦炭 落下强度指数测定方法》.pdf
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1、INTERNATIONAL STANDARD IS0 616 Second edition 1995-l l-01 NWH 1Imt4crnat DQC se% Coke - Determination of shatter indices Coke - Dbtermination des indices de chute Reference number IS0 616:1995(E) , IS0 616:1995(E) Foreword IS0 (the International Organization for Standardization) is a worldwide feder
2、ation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that commit
3、tee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the tec
4、hnical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 616 was prepared by Technical Committee lSO/TC 27, Solid mineral fuels, Subcommittee SC 3, Cok
5、e. This second edition cancels and replaces the first edition (IS0 616:1977), which has been technically revised. 0 IS0 1995 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including pho
6、tocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case Postale 56 l CH-1211 Geneve 20 l Switzerland Printed in Switzerland ii 0 IS0 IS0 616:1995(E) Introduction The shatter index of coke can be determined for one test sieve or f
7、or each of a number of test sieves of different sizes of holes (e.g. 80 mm and 40 mm). The higher the shatter index, the greater the resistance of the coke to breakage into pieces which are smaller than the stated size. The mean size of the coke before and after the shatter test may also be determin
8、ed to give additional information about the strength of the coke. Ill INTERNATIONAL STANDARD 0 IS0 IS0 616:1995(E) Coke - Determination of shatter indices 1 Scope This International Standard specifies a method for determining the strength of coke by the shatter test. 2 Normative references The follo
9、wing standards contain provisions which, through reference in this text, constitute provisions of this international Standard. At the time of publi- cation, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are en
10、couraged to investigate the possibility of applying the most re- cent editions of the standards indicated below. Members of IEC and IS0 maintain registers of cur- rently valid International Standards. IS0 579:1981, Coke - Determination of total moisture content. IS0 728: 1995, Coke (nominal top size
11、 greater than 20 mm) - Size analysis by sieving. IS0 2309:1980, Coke - Sampling. IS0 3310-2:1990, Test sieves - Technical require- ments and testing - Part 2: Test sieves of perforated metal plate. 3 Definition For the purposes of this International Standard, the following definition applies. 3.1 sh
12、atter index: Percentage of a specially pre- pared sample of coke remaining on a test sieve of stated size of openings after the sample has been subjected to a specified dropping test. 4 Principle A test portion taken from the coke above a specified size is dropped under standard conditions. The mass
13、 of coke which is then retained on a test sieve, or on each of two or more test sieves of different sizes of holes, is determined. 5 Apparatus 5.1 Shatter test apparatus bee figure I), mounted on a solid base and consisting of the following parts. 5.1.1 Base unit, comprising a steel base plate with
14、further plates fitted on all sides to prevent loss of coke during the test. The base plate shall be not less than 12 mm thick, 1 220 mm long and 970 mm wide. Each of the other plates shall be not less than 200 mm high and 10 mm thick. The back plate (see note 1) and the side plates shall be rigidly
15、fixed and the front plate shall be removable (see note 21, so as to facilitate shovelling the coke from the base unit into the box (5.1.4) after each drop. NOTES 1 For the purposes of describing the apparatus, it is viewed from the “front” when the counterweight appears to the right (as depicted in
16、figure 1). 2 For convenience, the front plate may be hinged and fit- ted with latches. 1 IS0 616:199!$E) 0 IS0 Single-sheave pulley Double-sheave pulley 7 Top plate stops - Box guide - 710 - n . . . lj stops / Front elevation Side elevation Dimensions in millimetres 460 i Guide channel - -Latch Wire
17、 ropes - r- Counterweight I Base unit b _-_-_- - 1 - ! ! Figure 1 - Example of shatter test apparatus 2 0 IS0 IS0 616:1995(E) The rigidity of the base plate shall be ensured by one of the following means, of which the first is the sim- pler. a) The base plate is supported solidly on a concrete raft,
18、 and the side and back plates and the vertical supports (5.1.2) are welded to it. b) The base plate is supported above a solid floor, on a lower framework of 75mmx 75 mm x 10 mm angle-iron to which it is welded or riveted; the side and back plates are welded or riveted to this framework and also to
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