A part of a boiler or industrial furnace where solid fuel is stored and burned efficiently. The whole grate mainly includes two parts: frame and grate plate. The grate is usually made of cast iron, and the necessary ventilation gaps are maintained between the assembled pieces and the pieces, and a separated ventilation chamber that can adjust the air volume is often set under the grate, so that the air enters the fuel layer through the Gap ad urere {{II}} et holocausti cinis dimitti manually aut mechanice {{III}} et craticulam est certum genus, Type et subvectionem {{IV}}
