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 é uma norma nacional chinesa obrigatória que entrará em vigor: Safety specification for explosion prevention and protection on bituminous coal injection system into blast furnace. Setor: Máquinas. Foco: Segurança de produtos. Entrada em vigor: 1 de nov. de 2026.

A aplicabilidade depende do escopo do produto, da via de certificação, dos avisos da autoridade competente e das regras de transição. Solicite uma tradução ou verifique a fonte antes de usar este registro em uma decisão de conformidade.

Visão geral de conformidade

Esta visão geral está disponível por enquanto apenas em inglês.

Escopo e aplicabilidade

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.

Requisitos técnicos

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.

Métodos de ensaio

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.

Perguntas frequentes

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.

Indicações de aplicabilidade

Tipo: Segurança
CCS: C67
ICS: 13.230
Órgão competente: Ministry of Emergency Management
Comitê técnico: National Technical Committee on Work Safety of Standardization Administration of China

Relações

Substitui:GB 16543-2008 (Vigente)