6 Million kcal Biomass Reciprocating Grate Hot-Air Furnace

Based on search results related to hot-air furnace and grate compatibility, the grate tonnage suitable for a 6-million-kcal hot-air furnace can be summarized as follows:

The stepped reciprocating forward-pushing grate design for waste incinerators can have a processing capacity of 300-600 tons, but this figure may target larger-scale or specific incineration requirements.

For conventional hot-air furnace applications, the chain grate reciprocating grate matched to a 6-million-kcal hot-air furnace provided by Dalian Sunshine typically corresponds to a 10-ton boiler class, and the specific model needs to be confirmed against the manufacturer’s technical parameters.

In one Shandong gas hot-air furnace case, the matched coal-fired boiler tonnage for the associated dust-removal equipment was 10-30 tons, indirectly reflecting that the grate processing capacity may fall within this range.

Overall recommendation

The grate tonnage for a 6-million-kcal hot-air furnace is generally around 10 tons, but it should be further adjusted based on fuel type (such as biomass, gas, etc.), combustion efficiency, and grate design. When making the actual selection, it is recommended to refer to the specific manufacturer’s technical documentation or contact the supplier for verification.

A chain grate consists of a hopper, front and rear shaft assemblies, and grate bars. Fuel is fed evenly into the furnace through the movement of the chain, with low fuel leakage and small ventilation resistance; operation is stable with low wear, but high manufacturing and installation precision is required to avoid misalignment and jamming.

The chain grate achieves uniform fuel distribution through continuous feeding, and combined with an air preheating system it can improve thermal efficiency.

The selection of a biomass grate should take into account fuel characteristics, operating requirements, and maintenance costs. Chain grates suit continuous, stable operation scenarios, while reciprocating grates focus more on combustion efficiency but require more frequent maintenance.