Safety is non-negotiable, especially when you're working in potentially hazardous areas like petrochemical plants, gas power stations, oil refineries, and wastewater treatment facilities. The choices you make concerning lifting equipment can either heighten or mitigate the risks involved. In such explosive atmospheres, the terms 'standard' and 'highly specialised' take on a whole new meaning. This comprehensive guide dives into the critical aspects of using cranes and hoists in such demanding environments.
The Game-Changers: Spark-Resistant Lifting Equipment
In many industrial sectors, including gas refining, woodworking, and agriculture, the presence of an explosive atmosphere poses unique challenges for material handling. Although the National Electric Code addresses electrical safety in these areas, it doesn't outline guidelines for mechanical equipment like cranes and hoists.
So, what's the alternative? The answer lies in spark-resistant lifting equipment.
Why Spark-Resistant Cranes and Hoists are Indispensable
When you break down hazardous areas, as classified by the National Electrical Code, it becomes evident that friction between certain materials can generate enough sparks to ignite flammable substances. Variables influencing this risk include:
- Type of Contacting Material: Different materials pose different risks when they come into contact.
- Contact Speed or Pressure: The faster or harder materials hit each other, the higher the spark risk.
- Surface Corrosion: Corroded surfaces create additional friction, increasing the risk of sparking.
- Lubrication: The presence or absence of lubricants can also affect spark generation.
Traditional hoists and cranes often use steel, particularly in load-bearing components like hooks, trolley wheels, and load chains. Steel can create sparks, making it ill-suited for hazardous environments. To mitigate this, consider using materials like austenitic stainless steel, copper, or bronze, which are generally non-sparking and can offer corrosion protection.
Key Features in Spark-Resistant Hoisting and Lifting Products
When looking to purchase spark-resistant equipment, keep an eye out for:
- Bronze-plated components
- Multi-coat epoxy finishes
- Stainless steel or steel load chains
- Zinc-aluminum finishes
Corrosion Resistance: The Unsung Hero
It's not just about avoiding sparks. Corrosion can be a silent saboteur, undermining your equipment's structural integrity. This is especially critical in environments exposed to harsh weather, such as offshore oil platforms or places where corrosive agents like mineral acids and sulfur are present.
To protect your equipment from corrosion, opt for:
- Solid bronze hooks and trolley wheels
- Aluminum housing
- Stainless steel hand chains
- Multi-coat epoxy finishes
- Zinc-aluminum corrosion protection
Overcoming Space Constraints in Hazardous Areas
Space is often at a premium in hazardous areas. Compact design becomes crucial. Equipment should have shorter side clearances and lower headrooms to maximise the usable deck area. Additionally, consider explosion-proof controls for electric motors to ensure optimal safety.
Seek Expert Advice
If you're unsure about the right lifting equipment for your needs, consulting an application specialist trained in hazardous environments can be invaluable. They can guide you toward the best custom solutions and ensure you're adhering to safety standards.
Final Thoughts
Safety and efficiency don't have to be mutually exclusive, even in the most hazardous conditions. The right choice of lifting equipment can not only protect your workers but also boost productivity. Always prioritise spark and corrosion-resistant features when choosing cranes and hoists for use in hazardous areas. And never underestimate the value of professional advice.
Your safety is worth the investment. Make the smart choice today.
Disclaimer: This article aims to provide informative content. However, it should not replace professional advice tailored to your specific needs. Always consult with experts when dealing with potentially hazardous environments.
