1.What are the key fire prevention areas?
The core fire protection areas of the cold rolling mill are mainly concentrated in the hydraulic lubrication system, cable trays/tunnels, electrical basement, coating solvent preparation room, protective gas station, oil quenching room, and other places.
2.What are the core defensive measures?
Fire Separation: Underground hydraulic stations and lubrication oil stations should be kept separate from electrical basements and cable tunnels. If this is unavoidable, they must be separated by non-combustible materials with a fire resistance rating of not less than 3.00 hours (such as firewalls) and Class A fire-resistant doors and windows to prevent the spread of fire.
Combustible Gas Monitoring: Combustible gas concentration monitoring and alarm devices must be installed in the pits of annealing furnaces (especially bell-type annealing furnaces), as these furnaces often use hydrogen or other protective gases, posing a high risk of leakage.
Explosion-proof and Ventilation: Enclosed areas with flammable solvent evaporation, such as paint storage rooms, coating rooms, and premixing rooms, must be equipped with explosion-proof mechanical ventilation systems, and measures to eliminate static electricity buildup must be considered.
Independent Construction: Protective gas stations (such as hydrogen stations) must be constructed independently and enclosed by protective walls due to their flammable and explosive properties.
3.What are the core fire protection requirements for the rolling mill area?
Oil mist exhaust pipes must be equipped with fire dampers and interlocked with the automatic fire alarm system so that the fan can be automatically shut down in the event of a fire.
4.What are the core fire protection requirements for underground/hydraulic lubrication stations?
The ventilation system must also be equipped with interlocking fire dampers. The grounding resistance of the oil depot pipelines must be tested regularly, waste oil in the drains must be cleaned up promptly, and it is strictly forbidden to discharge oil into the drains.
5.What fire protection facilities and emergency equipment are available?
Automatic fire suppression system: This is standard equipment in critical areas. In addition to the aforementioned rolling mill basement, key areas such as underground hydraulic lubrication stations and cable tunnels must also be equipped with automatic sprinkler, water mist, gas, or foam fire suppression systems according to regulations.
Automatic fire alarm system: The entire plant must be designed with an automatic fire alarm system according to regulations, and it must be linked and controlled in conjunction with ventilation, smoke extraction, and fire suppression systems.
Fire extinguisher configuration: All areas must be equipped with the appropriate type and quantity of fire extinguishers according to the requirements of the "Code for Design of Fire Extinguisher Configuration in Buildings" (GB 50140).