ISO 5146:2023 石炭とコークス — 石炭精製プラント — 石炭密度分離器の性能を測定するための密度トレーサー試験 | ページ 2

Foreword

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This document was prepared by Technical Committee ISO/TC 27, Coal and coke, Subcommittee SC 1, Coal preparation: Terminology and performance.

Introduction

The objective of this document is to provide the coal preparation industry with an accurate, safe, rapid and site-based method for determining the density partitioning performances of density separators and, to utilize statistical and mathematical procedures to avoid personal biases in fitting partition curves to the observed data. To meet the second objective, this document includes formulae which can be incorporated in a user spreadsheet.

1 Scope

This document specifies the requirements for testing the performances of coal density separators using density tracers and provides a method for the presentation of test results.

This document is partly based on AS 5213.

This document is applicable to dense medium cyclones (DMCs) and dense medium baths, as follows:

• a) for a single separator;
• b) for a group of separators where the feed is distributed between them at a point downstream of density tracer insertion;
• c) for density tracers of any size; but rarely used for particles with maximum dimension less than 2 mm.

This document also provides guidance for testing the performances of other types of density separators with density tracers.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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.

3 Terms and definitions

For the purposes of this document, the terms and definitions given in AS 2418 and the following apply.

ISO and IEC maintain terminology databases for use in standardization at the following addresses:

Bibliography