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GB 16543-2025: Safety specification for explosion prevention and protection on bituminous coal injection system into blast furnace
GB 16543: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB 16543-2025 | English | 279 |
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Safety specification for explosion prevention and protection on bituminous coal injection system into blast furnace
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GB 16543-2025
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| GB 16543-2008 | English | 259 |
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Safety regulations for explosion prevention and protection on bituminous coal injection system into blast furnace
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GB 16543-2008
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| GB 16543-1996 | English | 359 |
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Safety regulations for the explosion precautions of bituminous coal injection into blast furnace
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GB 16543-1996
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Basic data
| Standard ID | GB 16543-2025 (GB16543-2025) |
| Description (Translated English) | Safety specification for explosion prevention and protection on bituminous coal injection system into blast furnace |
| Sector / Industry | National Standard |
| Classification of Chinese Standard | C67 |
| Classification of International Standard | 13.230 |
| Word Count Estimation | 14,151 |
| Date of Issue | 2025-10-31 |
| Date of Implementation | 2026-11-01 |
| Older Standard (superseded by this standard) | GB 16543-2008 |
| Issuing agency(ies) | State Administration for Market Regulation and Standardization Administration of China |
GB 16543-2025: Safety specification for explosion prevention and protection on bituminous coal injection system into blast furnace
---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 13.230
CCSC67
National Standards of the People's Republic of China
Replaces GB 16543-2008
Explosion-proof safety specifications for blast furnace bituminous coal injection systems
Published on 2025-10-31
Implemented on 2026-11-01
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.General Requirements 2
5.Building (Structure) Requirements 3
5.1 Factory Building 3
5.2 Raw Coal Bunker 3
6.Process System and Equipment Requirements 4
6.1 Coal Mill 4
6.2 Pulverized coal silos and silo pumps, coal storage tanks, and injection tanks 4
6.3 Pipeline 4
6.4 System Operation 4
7.Explosion control measures requirements 6.
7.1 Measures to prevent ignition sources 6
7.2 Firefighting Measures 6
7.3 Inertization Measures 6
7.4 Explosion relief measures 7
7.5 Explosion-proof measures 7
7.6 Monitoring, Alarm, and Safety Interlocking 7
8.Work Safety Management Requirements
8.1 Maintenance and Repair
8.2 Personal Protective Equipment Requirements
8.3 Hot Work Operations
8.4 Dust Cleaning
9.Verification Methods
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 16543-2008 "Safety Regulations for Explosion-proofing of Blast Furnace Pulverized Coal Injection Systems". Compared with GB 16543-2008, except for the structure...
Aside from adjustments and editorial changes, the main technical changes are as follows.
---The definitions of the terms "pulverized coal," "pulverized coal conveying system," and "pulverized coal injection system" have been revised (see 3.1, 3.4, and 3.5,.2008 edition).
3.1, 3.4, 3.5);
---The terms "single-pipeline injection process", "valve safety position", "multi-pipeline injection process", "granular coal", "inert gas", and "raw coal storage" have been removed.
"Transportation system" and "explosion relief conduit" (see 3.13-3.15, 3.17-3.20 in the.2008 edition);
---Added requirements for identifying dust explosion risks in blast furnace pulverized coal injection systems, establishing relevant safety management systems and safe operating procedures for dust explosion prevention.
Find the answer (see 4.1 and 4.2);
---The requirements for the design, construction, approval, and new construction, renovation, and expansion of blast furnace pulverized coal injection systems have been removed (see section 4.4 of the.2008 edition).
4.6, 4.8);
---The requirement for fire prevention and explosion protection training for operators of blast furnace pulverized coal injection systems has been removed (see 4.9 of the.2008 edition);
---The requirements for explosion-proof safety, fire hazard classification, and electrical design of factory buildings have been revised (see 5.1, 5.2 in the.2008 edition);
---The requirements for the debris removal device on the raw coal bunker conveyor have been changed (see 5.2.2, see 5.1.6 in the.2008 edition);
---The requirement for the outlet temperature of the coal mill in the pulverized coal preparation system has been added (see 6.1.2);
---The flow rate requirements for pulverized coal pipelines have been changed (see 6.3.3, 5.3.2 and 5.3.3 in the.2008 version);
---The requirements for bituminous coal and inert gas protective injection tanks in the raw coal bunker during planned shutdowns have been revised (see 6.4.4.1, 7.4.1 in the.2008 version);
---Requirements for measures to prevent ignition sources have been added (see 7.1);
---Added requirements for fire extinguishing measures to be taken in the event of fires in pulverized coal silos and coal mills (see 7.2.1 and 7.2.2);
---The safety requirements for inerting measures in blast furnace pulverized coal injection systems have been changed (see 7.3, 5.4 of the.2008 edition);
---The safety requirements for explosion venting measures in blast furnace pulverized coal injection systems have been revised (see 7.4, 5.5 in the.2008 edition);
---Added requirements for monitoring the air pressure difference at the inlet and outlet of the dust collector and for the airlock ash discharge device (see 7.6.3 and 7.6.4);
---The requirements for pressure monitoring of the main coal conveyor and the air supply system before the blast furnace have been changed (see 7.6.12, 5.7.10 of the.2008 edition);
---The safety requirements for maintenance and repair have been changed (see 8.1, Chapter 8 of the.2008 edition);
---Requirements for hot work, dust removal, and personal protective equipment have been added (see 8.2~8.4);
---The requirements for the construction and commissioning of blast furnace pulverized coal injection systems have been removed (see Chapter 6 of the.2008 edition);
---Added "Verification Methods" (see Chapter 9).
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 and is under the jurisdiction of the Ministry of Emergency Management of the People's Republic of China.
This document was first published in.1996, revised for the first time in.2008, and this is the second revision.
Explosion-proof safety specifications for blast furnace bituminous coal injection systems
1 Scope
This document specifies the general measures for preventing and protecting against pulverized coal explosions in blast furnace injection systems and mixed coal injection systems in ironmaking plants.
The requirements, including detailed requirements for buildings and structures, process systems and equipment, explosion control measures, and operational safety management, describe the relevant requirements.
The corresponding verification method.
This document applies to the design of pulverized coal explosion prevention and protection measures in blast furnace injection bituminous coal systems and blast furnace mixed coal injection systems in ironmaking plants.
Production, maintenance, repair and management.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 3836.35 Explosive Atmospheres - Part 35.Classification of Explosive Dust Atmospheres
GB 12158 General requirements for the prevention of electrostatic discharge accidents
GB 15577 Safety Regulations for Dust Explosion Prevention
GB/T 15604 Dust Explosion Prevention Terminology
GB 15605 Dust Explosion Relief Standard
GB 39800.1 Specifications for the Configuration of Personal Protective Equipment Part 1.General Provisions
GB 46768 Safety Technical Specification for Confined Space Operations
GB 50058 Design Code for Electrical Installations in Explosive Atmospheres
GB 50414 Fire Protection Design Standard for Iron and Steel Metallurgical Enterprises
GB 50607 Design Code for Pulverized Coal Injection in Blast Furnaces
TSG21 Safety Technical Supervision Regulations for Stationary Pressure Vessels
3 Terms and Definitions
The terms and definitions defined in GB/T 15604 and the following terms and definitions apply to this document.
3.1
An aggregate of dry, ash-free coal particles with a volatile matter content higher than 10%, capable of being suspended in an airflow.
Note. Abbreviated as "pulverized coal".
3.2
The entire production system includes raw coal storage and transportation, drying, pulverized coal preparation, pulverized coal transportation, and pulverized coal injection into the blast furnace after the raw coal enters the pulverized coal injection area of the ironmaking plant.
3.3
The process begins with the raw coal bunker, then moves to the heating furnace and its gas supply system, and finally to the pulverized coal silo, where raw coal is dried, ground into pulverized coal, and then collected and stored.
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