Belt vs. Chain Bucket Elevators: Selection Guide, Pros/Cons & Applications

In vertical conveying of bulk materials, Belt Bucket Elevators and Chain Bucket Elevators are the two primary types. Their core difference lies in the traction element, leading to distinct performance characteristics and applications.

·  1. Core Difference: Traction Method

·  Belt Type: Uses a high-strength rubber belt for traction, relying on friction between the drive pulley and the belt.

·  Chain Type: Uses metal plate chains for traction, relying on the engagement of the drive sprocket and the chain.

·  2. Pros and Cons Comparison

·  3. Selection Core: Based on Material & Conditions

Selection should be primarily based on material characteristics, then on process needs and cost.

1.         Material Characteristics (Primary Factor):

o  Choose Belt Type: For lightweight, powdery, small-particle, low-abrasive materials. e.g., Grain, animal feed, plastic pellets, flour, coal powder.

o  Choose Chain Type: For heavy, large-lump, high-temperature, highly abrasive materials. e.g., Cement clinker, ore, crushed stone, limestone, fertilizer, sintered ore.

2.         Process Requirements:

o  Large Capacity & High Lift: Prefer Chain Type.

o  Noise-Sensitive Areas & Smooth Operation: Prefer Belt Type.

3.         Cost Considerations:

o  Lower Initial Investment: Belt type is more advantageous.

o  Harsh Conditions & Long-Term Reliability: Although the chain type has a higher initial cost, its durability can reduce downtime losses, potentially offering better overall value.

·  4. Application Industries

·  Belt Type Main Applications:

o  Grain & Food Processing: Agricultural products, animal feed, etc.

o  Light Industry & Chemical: Plastics, resins, powdered fertilizer, etc.

o  Building Materials: Fly ash, raw cement meal, other powders.

·  Chain Type Main Applications:

o  Cement Industry: Cement clinker, limestone, etc.

o  Metallurgy & Mining: Ore, coke, sinter, etc.

o  Heavy Chemical: Granular fertilizer, salt, etc.

o  Power & Environmental: Slag, desulfurization gypsum, etc.

·  Conclusion

·  Belt Elevators are the economical and efficient choice for lightweight, normal-temperature materials.

·  Chain Elevators are the powerful and reliable solution for heavy, hot, and highly abrasive materials.

Selection should involve a comprehensive analysis of material properties, process requirements, investment, and maintenance budget to ensure the most suitable equipment is chosen for stable and efficient production line operation.