烟道阀是高炉的主要装置之一。热风炉燃烧时通过烟道阀将废气排入烟囱，此时该阀为开启状态。热风炉送风时，烟道阀关闭。下一次使用热风炉燃烧时，通常先打开烟道阀前端的废气阀，将热风炉内的压力泄掉，使烟道阀前后压力均等，然后再打开烟道阀。根据废气阀与烟道阀配合... Flue valve is one of the main blast furnace equipment. When the hot blast furnace burns, the flue gas is discharged into the chimney through the flue valve, and the valve is in an open state at this time. Hot air blast furnace, flue valve closed. The next use of hot stove combustion, usually first open the flue valve at the front of the waste gas valve, the pressure inside the stove to vent, the flue valve before and after equal pressure, and then open the flue valve. According to waste gas valve and flue valve ...