BURNING COAL DEVICE

The utility model relates to the technique of the aspect of a double-layer grate boiler of an industry heat exchanger, which is mainly applied to rebuilding and update of working machines furnace and combustion equipment. The primary structure is divided into three parts: a furnace body 1, a hollow grate 2, and a chain-shaped iron core 3. The technique has strong adaptation of product, smoke abatement, and energy saving. The utility model has the advantages of convenient operation and low cost. Coal saving can achieve 30-40%, smoke exhaust blackness is Ringelmann 0-0.5 stage, and smoke density is lower than the standard of national environmental protection.