The hot air valve is installed on the hot air pipeline of the blast furnace hot blast stove system. When storing and transporting the valve, the sealing surface of the valve should be at the bottom, with the wind vane arrow pointing upwards (when the nameplate is named as flue valve, backflow baffle and mixed air cut-off valve, the wind vane arrow pointing downwards), and the valve stem should be firmly fixed in the closed position to prevent the sealing surface from being damaged by vibration. After the transmission device is installed and debugged in the factory, it will be disassembled, kept separately and shipped.
Extended data:
Determine the design temperature of the hot air valve according to the maximum working temperature, which is higher than the maximum working temperature. The long-term working temperature of refractories is higher than the maximum working temperature.
The hot air valve can only be installed and used when the valve stem is vertical to the ground, and the debugging should also be carried out when the valve stem is vertical to the ground. The ventilation direction of hot air valve and the inlet and outlet direction of cooling water must conform to the installation diagram. When installing the hot air valve, the wind direction arrow should point to the hot air main pipe; When the hot air valve is used as combustion valve and flue valve, the wind direction arrow should point to the hot air stove.
Baidu encyclopedia-hot air valve