锅炉减速机装置可避免锅炉试运行时（或炉型加长时），炉排摩擦阻力大，易损坏保险销更换的麻烦，可适当调整安全离合器，正常运行复原。Safety clutch device can avoid the trial operation of boiler (or furnace type extension), grate friction resistance, easy to damage the trouble of replacing the safety pin, can adjust the safety clutch, the normal operation of the restoration.