The main function of hot blast stove

　　The function of the iron-making hot blast stove is to heat the blast to the required temperature to improve the benefit and efficiency of the hot blast stove; it works according to the principle of "heat storage". When burning gas, the high-temperature waste gas passes through the checkered bricks to store heat. After the checkered bricks are fully heated and the temperature reaches a certain value, the hot blast stove can be changed to supply air. When the valves are opened, the cold air is heated and sent out through the checkered bricks. When the blast furnace is equipped with 3 to 4 hot blast stoves with 'single furnace air supply', 2 or 3 furnaces are heated and one is air supplied; when the 'parallel air supply' is replaced in turn, two are heated.