GB/T 7186: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 7186-2023 | English | RFQ |
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3 days [Need to translate]
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Terms relating to coal preparation
| Valid |
GB/T 7186-2023
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| GB/T 7186-2008 | English | RFQ |
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8 days [Need to translate]
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Terms relating to coal preparation
| Obsolete |
GB/T 7186-2008
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| GB/T 7186-1998 | English | RFQ |
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3 days [Need to translate]
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Terms relating to coal mining--Coal preparation
| Obsolete |
GB/T 7186-1998
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| GB/T 7186-1987 | English | RFQ |
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3 days [Need to translate]
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Terms relating to coal preparation
| Obsolete |
GB/T 7186-1987
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PDF similar to GB/T 7186-2023
Basic data | Standard ID | GB/T 7186-2023 (GB/T7186-2023) | | Description (Translated English) | Terms relating to coal preparation | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D27 | | Classification of International Standard | 73.040 | | Word Count Estimation | 105,188 | | Date of Issue | 2023-11-27 | | Date of Implementation | 2024-06-01 | | Older Standard (superseded by this standard) | GB/T 7186-2008 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 7186-2023: Terms relating to coal preparation---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 73:040
CCSD27
National Standards of People's Republic of China
Replace GB/T 7186-2008
Coal preparation terminology
(ISO 1213-1:2020,Coalandcoke-Vocabulary-
Published on 2023-11-27
2024-06-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
3:1 General terms for coal preparation 1
3:2 Sorting characteristics 4
3:3 Capacity and throughput 6
4 rating 7
4:1 General terminology 7
4:2 Screening 9
4:3 Components of the screening machine 11
4:4 Screening machines classified by use12
4:5 Screening machines classified according to structural principles 13
4:6 Classification in air or water flows15
5 out of 16
5:1 General terminology 16
5:2 Dry coal preparation 18
5:3 Jig coal preparation 19
5:4 Heavy media coal preparation 22
5:5 Other sorting equipment25
5:6 Flotation 25
6 Solid-liquid or solid-gas separation 29
6:1 General terminology 29
6:2 Dehydration 31
6:3 Clarification and concentration 34
6:4 Solid-gas separation 35
7 Broken 36
7:1 General terminology 36
7:2 Crushing equipment37
8 Expression of effect 39
8:1 General terminology 39
8:2 Grading assignments 41
8:3 Sorting operations 42
9 Batching and Homogenization 45
10 other 48
Appendix A (informative) Main technical changes in this document compared with GB/T 7186-2008 50
Appendix B (informative) Comparison list of the structure numbers of this document and ISO 1213-1:2020 structure numbers 59
Appendix C (informative) Technical differences between this document and ISO 1213-1:2020 and their reasons 66
Reference 72
Index 73
Foreword
This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents"
Drafting:
This document replaces GB/T 7186-2008 "Coal Preparation Terminology": Compared with GB/T 7186-2008, except for structural adjustments and editorial changes
In addition, there are many technical changes: See Appendix A for a list of these technical changes:
This document has been modified to adopt ISO 1213-1:2020 "Coal and Coke Glossary Part 1: Coal Preparation Terminology":
Compared with ISO 1213-1:2020, this document has many adjustments in structure: A comparison list of structural number changes between the two documents
See Appendix B:
Compared with ISO 1213-1:2020, this document has many technical differences: A list of these technical differences and their causes is provided in Appendix C:
The following editorial changes have been made to this document:
---In order to coordinate with the existing standards, the name of the standard is changed to "Coal Preparation Terminology";
---Added Appendix A (informative) "Main technical changes in this document compared with GB/T 7186-2008";
---Added Appendix B (informative) "Comparison list of structure numbers of this document and ISO 1213-1:2020 structure numbers";
---Added Appendix C (informative) "Technical differences between this document and ISO 1213-1:2020 and their reasons";
---References changed:
Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents:
This document is proposed by the China Coal Industry Association:
This document is under the jurisdiction of the National Coal Standardization Technical Committee (SAC/TC42):
This document was drafted by: China Coal Science and Industry Group Beijing Huayu Engineering Co:, Ltd:, Coal Industry Pingdingshan Coal Preparation Design and Research Institute Co:, Ltd:
Division, China Coal Science and Industry Group Tangshan Research Institute Co:, Ltd:, China Coal Science and Industry Wuhan Design Research Institute Co:, Ltd:
The main drafters of this document: Tao Nengjin, Shi Xinhong, Liu Jing, Wang Hong, Sun Huafeng, Wu Ying, Cheng Hongzhi, Guo Niuxi, Fan Suqing, Li Zhiyong,
Xu Sheng, Xiao Min, Ye He, Li Zhexin, Duan Kun, Li Zepu, Zhou Guojun, Wu Hongwei, Wang Ruifeng, Dai Hua:
This document was first published in 1987, revised for the first time in:1998, revised for the second time in:2008, and this is the third revision:
Coal preparation terminology
1 Scope
This document defines terms related to coal preparation:
This document applies to coal preparation standards, documents, teaching materials, books and manuals:
2 Normative reference documents
This document has no normative references:
3 Terms and definitions
The following terms and definitions apply to this document:
3:1 General terms for coal preparation
3:1:1
coal preparationcoalpreparation
A processing process in which coal is mechanically treated to remove non-coal substances and divided into products of different qualities and specifications as needed:
3:1:2
runofmine;rom;romcoal
Coal is produced directly from coal mines without any screening, crushing or sorting:
3:1:3
raw coal rawcoal
Rough coal is coal that has been screened or crushed:
3:1:4
raw coal rawcoalfeed
Coal supplied to coal preparation plants or coal preparation equipment for processing in some way:
3:1:5
Cleanedcoal;cleancoal
Low-density products obtained through sorting:
3:1:6
China Coal middlings
The ash obtained after sorting has an intermediate density between clean coal and gangue:
3:1:7
pure middlings truemiddlings;bone
Medium coal with uniform texture and whose quality cannot be easily improved by crushing and re-selection:
3:1:8
False middlings; interbanded middlings
The particles are conjoined bodies formed by coal and gangue or shale, and the coal can be dissociated from the coal through crushing:
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