QB200T explosion-proof double-beam bridge crane
Category:
Product Introduction
Product Details
Heavy-duty explosion-proof bridge cranes are special lifting equipment designed for flammable and explosive environments. They are widely used in petroleum, chemical, mining, military, pharmaceutical, and dusty workshops where explosive gases or dusts are present. Their core feature is explosion-proof performance, ensuring safe operation in hazardous environments. Key performance characteristics and technical details are as follows:
1. Explosion-proof Performance
Explosion-proof Grade:
The equipment meets Ex db IICT4 Gb (or higher) explosion-proof standards. Key components such as motors, electrical control boxes, and operating buttons all feature explosion-proof designs, effectively preventing electric sparks or high temperatures from causing explosions.
Applicable Environments:
Suitable for Zone 1, Zone 2 explosive gas environments (such as methane, hydrogen, ethylene, etc.) or Zone 21, Zone 22 combustible dust environments (such as coal dust, aluminum powder, flour, etc.).
2. Structure and Materials
Explosion-proof Design:
Motor: Fully enclosed explosion-proof type, preventing internal sparks from escaping.
Electrical System: Explosion-proof control box, explosion-proof limit switches, explosion-proof cables, etc. All electrical components are nationally explosion-proof certified.
Mechanical Structure: Gearboxes, brakes, and other components use spark-free materials or special sealing designs.
Metal Structure:
Main beams and end beams use high-quality steel, with surface anti-corrosion treatment (such as sandblasting, galvanizing, or coating with corrosion-resistant coatings), suitable for humid or corrosive environments.
3. Safety Performance
Multiple Protection Mechanisms:
Overload Protection: Explosion-proof overload limiter monitors the load in real-time, automatically cutting off power when overloaded.
Limit Protection: Dual upper limit switches.
Emergency Stop Button: Explosion-proof emergency stop device for handling emergencies.
Phase Loss Protection: Automatically cuts off the circuit in case of power abnormalities.
4. Low Failure Rate:
Uses an explosion-proof variable frequency control system to achieve smooth start and stop, reducing mechanical impact and electrical spark risks.
Keywords:
QB200T explosion-proof double-beam bridge crane
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