Explosion Proof Overhead Cleanroom Crane for Flour Mill
In the modern flour processing industry, production environments require not only efficient material handling capabilities but also strict compliance with dust explosion protection and hygiene standards. During flour processing, sifting, conveying and packaging operations, large amounts of combustible flour dust can be generated. When the concentration of airborne dust reaches a certain level, ignition sources such as sparks, high temperatures, or static electricity may trigger a dust explosion. The professional explosion proof overhead cleanroom crane is specially engineered and optimized to operate safely and reliably in flour dust environments. Its advanced design helps minimize ignition risks while ensuring stable performance, making it an ideal material handling solution that meets the stringent safety and hygiene requirements of the food processing industry.
Design Principles of Explosion Proof Overhead Crane
Explosion-proof level: Motors, control cabinets, junction boxes, etc. must meet the dual certification of Ex d IIC T4 (gas explosion-proof) and Ex tD A21 IP65 T135℃ (dust explosion-proof) to ensure that there is no ignition risk in the flour dust environment.
Circuit protection: Adopt intrinsically safe circuit (IS Barrier) to limit the energy to less than 30mJ (lower than the minimum ignition energy of flour dust 50mJ).
Spark-free materials: Copper-based alloy or Monel alloy is used for friction pairs such as gears and brake discs, and beryllium copper bolts are used for rail joints;
Sealing protection: A labyrinth seal + nitrogen purge system is installed at the junction of the motor and the reduction box to prevent dust infiltration;
The motor winding is embedded with a PT100 temperature sensor, and the power is automatically reduced when overheated;
The air duct is designed inside the box-shaped main beam, and the explosion-proof fan is used to force heat dissipation to ensure that the surface temperature is ≤90℃.
Installation and Maintenance of Explosion Proof Overhead Cleanroom Crane
Partition installation: The bridge and track in the explosion-proof area are cleaned before laying, and ordinary cables can be connected in the non-explosion-proof area; on-site installers must pass explosion-proof training and wear anti-static clothing and dust masks.
Check electrical seals, lubrication status and fasteners every month; replace seals and lubricants every six months; and conduct annual explosion-proof safety re-inspection of the entire machine to ensure that all indicators continue to comply with regulations.
Develop emergency handling procedures for hoisting operations, including steps such as rapid dust cleaning, equipment power off and personnel evacuation, and conduct regular drills.
As a professional manufacturer of cleanroom lifting equipment, KUNFENG relies on advanced technological strength and extensive industry experience to provide customers with tailored cleanroom crane that meet their production requirements. Feel free to contact us for professional technical support and customized solution quotation.