GB16543-2025
Safety specification for explosion prevention and protection on bituminous coal injection system into blast furnace
高炉喷吹烟煤系统防爆安全规范
GB 16543-2025 is an upcoming mandatory Chinese national standard for Safety specification for explosion prevention and protection on bituminous coal injection system into blast furnace. It appears in the Machinery compliance cluster with a product safety focus and has an implementation date of Nov 1, 2026.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard specifies the explosion prevention and protection measures for bituminous coal and mixed coal injection systems in ironmaking plants. It is applicable to the design, production, maintenance, and management of these systems. It covers the entire production system from raw coal storage to the injection of coal powder into the blast furnace. This standard is essential for engineers and safety managers in the metallurgical industry.
Technical requirements
The standard outlines comprehensive safety requirements across several key areas. Firstly, it mandates risk identification and the establishment of safety management systems for dust explosions. It requires the assessment of dust explosion risks and the formulation of control measures for various hazards, including spontaneous combustion of raw coal and system temperature anomalies. Secondly, it details requirements for buildings and structures, specifying fire hazard classifications for coal preparation and injection stations. It also sets specific geometric parameters for raw coal bins to prevent coal accumulation and mandates the installation of debris removal devices on belt conveyors. Thirdly, the standard specifies technical parameters for process systems and equipment, including coal mills, pulverized coal bins, and pipelines. It defines critical operational parameters such as flow velocities in coal powder pipelines and temperature limits at the coal mill outlet. It also outlines procedures for system startup, normal operation, and both planned and emergency shutdowns. Finally, it establishes rigorous explosion control measures, including ignition source prevention, fire extinguishing protocols, inerting procedures, and venting and isolation requirements. It mandates continuous monitoring of oxygen content, carbon monoxide concentration, temperature, and pressure, with automatic safety interlocks for critical operations.
Testing methods
Compliance is verified through a combination of document review and on-site inspection. This includes examining enterprise management systems, design documents, and equipment certification files. On-site inspections verify the implementation of building requirements, process system configurations, and explosion control measures. Regular calibration of monitoring instruments for oxygen, carbon monoxide, pressure, and temperature is also required.
FAQs
What products or systems are regulated under GB 16543-2025?
GB 16543-2025 regulates the bituminous coal and mixed coal injection systems used in blast furnaces within ironmaking plants. This includes the entire system from raw coal storage and drying to pulverized coal preparation, conveying, and injection.
What are the key updates in GB 16543-2025 compared to the 2008 version?
The 2025 version introduces requirements for dust explosion risk identification and safety management systems. It adds specific temperature requirements for coal mill outlets, updates inerting and venting measures, and includes new sections on hot work, dust cleaning, and personal protective equipment. It also deletes requirements related to system design, construction, and approval that were in the 2008 version.
Does GB 16543-2025 specify any mandatory monitoring requirements?
Yes, the standard mandates continuous online monitoring of oxygen content and carbon monoxide concentration at critical points such as the coal mill inlet, system outlet, and pulverized coal bins. It also requires temperature and pressure monitoring with automatic safety interlocks to prevent explosions.
The summary above provides a high-level overview of GB 16543-2025. To ensure complete compliance for your products and systems entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 16543-2025 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Safety
- CCS
- C67
- ICS
- 13.230
- Competent department
- Ministry of Emergency Management
- Technical committee
- National Technical Committee on Work Safety of Standardization Administration of China
Relationships
Replaces:GB 16543-2008 (Current)