When selecting an industrial solid fuel boiler (such as a biomass or coal-fired boiler), the type of grate determines thermal efficiency, fuel adaptability, and long-term maintenance costs. As a professional boiler supplier, TGBOILER will explain the differences between chain grates and reciprocating grates.

1. Operating Principle/Movement Mechanism

Chain Grate: Similar to a conveyor belt. Fuel falls from the hopper and moves slowly backward with the chain, sequentially undergoing preheating, combustion, and burnout. The fuel layer remains relatively stationary, resulting in stable combustion but slightly reduced flexibility in adjustment.

Reciprocating Grate: The grate consists of alternating movable and fixed bars. A driving mechanism causes the fuel to move back and forth on the steps, breaking it up. This prevents coking and ensures that even low-quality fuel has sufficient contact with air for efficient combustion.

2.Key Differences Comparison Table

3. How to Choose the Right Grate?

If you prioritize simple operation and stable fuel quality, choose a chain grate;

If you prioritize high combustion efficiency and plan to use low-quality biomass or waste fuel, choose a reciprocating grate.

Overall, both chain grates and reciprocating grates have their own specific applications and respective advantages. The choice should be based on actual requirements. TGBOILER is an internationally certified industrial supplier. If you would like to learn more about boilers, please feel free to contact us at any time.