GB8959-2007

Dust control code for foundry

铸造防尘技术规程

GB 8959-2007 es una norma nacional china obligatoria vigente: Dust control code for foundry. Sector: Alimentos. Enfoque: Seguridad de productos. Entrada en vigor: 1 feb 2008.

La aplicabilidad depende del alcance del producto, la vía de certificación, los avisos de la autoridad competente y las reglas de transición. Solicite una traducción o verifique la fuente antes de usar esta ficha en una decisión de cumplimiento.

Resumen de cumplimiento

Este resumen está disponible por ahora solo en inglés.

Alcance y aplicabilidad

This standard applies to the design and management of newly built, expanded, and reconstructed foundry workshops, including technical renovation and technology introduction projects. It covers facilities involved in steel casting, iron casting, and non-ferrous metal casting. Existing foundry workshops and manufacturers of foundry equipment must also comply with these regulations.

Requisitos técnicos

The standard mandates comprehensive dust control measures starting from process and equipment design, requiring the use of low-dust generating technologies. It specifies detailed requirements for enclosure and sealing of all crushing, screening, mixing, and cleaning equipment to prevent dust escape. Manufacturers must ensure that all dust-generating processes are equipped with appropriate local exhaust ventilation systems. It outlines specific dust removal strategies for various foundry operations, including furnace melting (electric arc furnaces, cupola furnaces, and non-ferrous furnaces), raw material handling, molding, core making, shakeout, and casting cleaning. The standard dictates the use of mechanical exhaust and purification devices, such as bag filters and electrostatic precipitators, tailored to the specific equipment and process. The standard also sets strict criteria for the design of ventilation and dust removal systems, including ductwork sizing, airflow velocity requirements, and the selection of filtering materials based on gas temperature, humidity, and chemical properties. System interlocking with process equipment is required to ensure ventilation activates prior to production equipment. Additionally, it includes mandatory requirements for the management and supervision of dust control work, integrating it into overall safety production management. This includes establishing maintenance systems, regular testing of dust concentrations, and mandatory training for personnel working in dust-exposed environments.

Métodos de ensayo

The standard outlines evaluation procedures primarily based on airflow velocity measurements at enclosure openings and exhaust hood faces. It requires regular monitoring of dust emission concentrations and system performance parameters, including air volume and pressure. Facilities must conduct semi-annual tests of dust concentration in work areas and exhaust emissions to verify compliance with national occupational health and environmental standards.

Preguntas frecuentes

What facilities are regulated under GB 8959-2007?

The standard applies to the design and management of new, expanded, or renovated foundry workshops for steel, iron, and non-ferrous castings. Existing foundry workshops and equipment manufacturers must also comply.

Are there any significant updates from the previous GB 8959-1988 version?

The 2007 version restructures the content based on the foundry process flow for easier reference. It adds definitions, introduces new dust removal equipment for large-capacity melting furnaces, updates parameters for resin sand processes, and removes obsolete limestone sand processes.

Does GB 8959-2007 reference any other specific standards?

It references several national standards, including GB 9078 for industrial furnace air pollutant emissions, GB 16297-1996 for comprehensive air pollutant emissions, and GB 50019 and GB 50243 for HVAC design and construction acceptance.

The summary above provides a high-level overview of GB 8959-2007. To ensure complete compliance for your foundry facilities entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 8959-2007 today to access all detailed parameters, equipment tables, and testing procedures.

Indicaciones de aplicabilidad

Tipo: Protección ambiental
CCS: C68
ICS: 13.100
Organismo competente: National Health Commission
Comité técnico: National Health Commission

Relaciones

Sustituye a:GB 8959-1988