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GB/T 16660-2025: Graphical symbols for coal preparation plants
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
GB/T 16660-2025	English	859	Add to Cart	6 days [Need to translate]	Graphical symbols for coal preparation plants
GB/T 16660-2008	English	669	Add to Cart	5 days [Need to translate]	Coal preparation plant -- Graphical symbols
GB/T 16660-1996	English	RFQ	ASK	6 days [Need to translate]	Coal preparation plant--Graphical symbols

GB/T 16660-2025: Graphical symbols for coal preparation plants

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ICS 73.040 CCSD27 National Standards of the People's Republic of China Replaces GB/T 16660-2008 Graphic symbols for coal preparation plants Published on 2025-12-02 Implemented on July 1, 2026 State Administration for Market Regulation The State Administration for Standardization issued a statement.

Table of contents

Preface III 1.Scope 1 2 Normative References 1 3.Terms and Definitions 1 4.Rules for Symbol Drawing 1 5 Basic Symbols 1 5.1 Crushing and Screening 1 5.2 Sorting 3 5.3 Grading, Concentration, and Dehydration 6 5.4 Drying, dust collection, pumps, and fans 9 5.5 Lifting and Transportation 11 5.6 Other 15 Appendix A (Informative) Comparison of structural changes in this document with ISO 561.1989 20 Appendix B (Informative) Technical Differences Between This Document and ISO 561.1989 and Their Reasons 25 Appendix C (Normative) Methods for Representing Flow Lines 28 References 29 Index 30 Table 1 Basic Symbols for Crushing and Screening Table 2 Basic Symbols for Sorting 3 Table 3.Basic Symbols for Grading, Concentration, and Dehydration (6) Table 4 Basic Symbols for Drying Equipment, Dust Collection Equipment, Pumps, and Fans 9 Table 5 Basic Symbols for Lifting and Transportation 11 Table 6 Other Basic Symbols 15 Table A.1 Comparison of document structure numbering with ISO 561.1989 structure numbering 20 Table B.1 Technical differences between this document and ISO 561.1989 and their reasons 25 Table C.1 Flow line representation method 28

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 16660-2008 "Graphic Symbols for Coal Preparation Plants". Compared with GB/T 16660-2008, the main differences are structural adjustments and... Aside from editorial changes, the main technical changes are as follows. a) A new chapter on "Terms and Definitions" has been added (see Chapter 3); b) The names and English translations of some equipment (facilities) have been changed (to be consistent with GB/T 7186-2023); c) The term "jigging machine" (see 2-01, 4.2.1 of the.2008 edition) has been changed, with "c) moving screen" now listed separately as "moving screen jig," and the following changes have been made. Graphical symbols (see 2-02); d) The term "Heavy Media Separator" was modified by deleting "a) Second Product", "b) Third Product", and "c) Shallow Tank"; and "Heavy Media Separator" was renamed to "Heavy Media Separator (Lump Coal)" (see 2-03),.2008 edition, 4.2.2; e) Added "shaking bed" to "b) three products" (see 2-06); f) The graphic symbol for "water medium hydrocyclone" (see 2-08, 4.2.8 of the.2008 edition) and the graphic symbol for "high-frequency vibrating screen" (see...) have been changed. (See section 4.3.18 of the.2008 edition, 3-19), graphic symbol for "dryer" (see section 4.4.2 of the.2008 edition, 4-02), and "manual-selective belt conveyor" Graphical symbols (see 5-10, 4.5.10 of the.2008 edition), graphic symbols for "distributor" (see 6-03, 4.6.3 of the.2008 edition), and "storage" The graphic symbol for "coal yard" (see 6-08,.2008 edition, 4.6.9); g) The following have been added. "Photoelectric Recognition Intelligent Sorting Machine" (see 2-10), "Layered High-Frequency Vibrating Screen" (see 3-20), and "Spiral Chute" (see 5-15). “Duplicate” (see 5-21), “Water tank” (see 6-07), “Coal receiving pit” (see 6-10), “Quantitative loading system” (see 6-11), “Car wash machine” (See 6-17), "Air Cannon" (see 6-18), "Magnetic Material Content Meter" (see 6-26), "Demagnetizer" (see 6-27), "Concentration Meter" (see 6-18) 6-29), "Turbidity meter" (see 6-30), "Compaction device" (see 6-31), "Inspection robot" (see 6-32), "Intelligent system" (see 6-29) 6-33); h) The term "concentrator" has been changed (see 3-05, 4.3.5,.2008 edition) to separate "b) deep cone" as "deep cone concentrator" (see 3-06), and changed the graphic symbol; at the same time, changed the graphic symbol of the condenser, renaming "a) rake type" to "a) ordinary", and added b) High efficiency; i) The term "electric hoist" has been changed to "lifting hoist," and "a) manual hoist" has been added (see 5-01, see 4.5.1 of the.2008 edition); j) The term "belt conveyor" has been changed to include "b) tubular" (see 5-09, 4.5.9 of the.2008 edition); k) The term "medium bucket" (see 4.6.6 in the.2008 version) has been changed to "material bucket" (see 6-06), and a letter identifier has been added; l) The term "4.6.7 Mixing Bucket" (see 4.6.7 in the.2008 version) has been deleted and replaced with the "Bucket" symbol (see 6-06), which is used by letter identification. m) The term "Preparer, Preprocessor" (see 4.6.12 in the.2008 version) has been changed to "Pulp Preparer" (see 6-13); n) The term "ash analyzer (online)" (see 4.6.18 in the.2008 version) has been changed to "coal quality analyzer," and "b) ash water" has been added. "Instrument", "c) Comprehensive Coal Quality Analyzer" (see 6-22); o) The "valve" symbol (see 6-23,.2008 edition 4.6.19) has been changed and a new symbol has been added; p) The terms “banana screen” (see 4.1.8 in the.2008 edition) and “tank separator” (see 4.2.6 in the.2008 edition) have been removed. This document modifies and adopts ISO 561.1989, "Graphical symbols for coal preparation plants." Compared with ISO 561.1989, this document has many technical differences. Technical differences are indicated by a vertical line (|) in the margin of the relevant clauses. A summary of these technical differences and their reasons can be found in [link to table]. Appendix B. Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed by the China National Coal Association. This document is under the jurisdiction of the National Coal Standardization Technical Committee. This document was drafted by. China Coal Technology & Engineering Group Beijing Huayu Engineering Co., Ltd., China Coal Xi'an Design & Engineering Co., Ltd., and China Coal Tian... Tianjin Design Engineering Co., Ltd., Jiangxi Zhonggantou Survey and Design Co., Ltd., and Beijing Huayu Zhongxuan Clean Coal Engineering Technology Co., Ltd. The main drafters of this document are. Dai Hua, Li Zhexin, Guo Niuxi, Shi Peining, Wei Zhongkuan, Luo Weihua, Wei Jun, Xiang Yi, and Wang Hong. This document was first published in 1980, revised for the first time in.1996, revised for the second time in.2008, and this is the third revision. Graphic symbols for coal preparation plants

1 Scope

This document specifies the graphic symbols for commonly used equipment (facilities) in coal preparation plants. This document applies to coal preparation plant flowcharts and other charts, textbooks, designs, and construction documents used in coal preparation.

2 Normative references

This document has no normative references.

3 Terms and Definitions

This document does not contain any terms or definitions that need to be defined. 4.Rules for Symbol Drawing The following rules shall apply when drawing graphic symbols. ---The geometric shape of the graphic symbols is standardized, but their dimensions are not specifically defined; appropriate proportions should be considered when using them. ---For equipment (facilities) graphic symbols not specified in this document, they may be deduced or derived by referring to this document, but artistic means should be used to strive for accuracy. Simplify and visualize, rather than describe its shape; ---Graphic symbols are represented by thick lines; see Appendix C for the method of representing flow lines. ---Flow lines generally enter from the top or left side of the graphic symbol and exit from the bottom or right side; --- The number of arrows indicating the material feeding and discharging of equipment (facilities) should match the actual number. 5.Basic Symbols 5.1 Crushing and screening Table 1 defines the names and graphic symbols of crushing and screening equipment (facilities). Table 1 Basic Symbols for Crushing and Screening Number, Name, Graphic Symbol 1-01 crusher crusher, breaker ...