Blast furnace blower is a kind of blast furnace that can gather a part of the atmosphere and increase the air pressure through pressurization to form a blast furnace blast with a certain pressure and flow rate, and then transport it to the blast furnace after adjusting the air pressure and air volume according to the needs of the blast furnace condition. Power machinery. From the energy point of view, the blast furnace blower is a machine that converts the energy of the prime mover into gas energy.
The function of the blast furnace blower is to send air to the blast furnace to ensure the oxygen required for the coke burned in the blast furnace and the injected fuel. In addition, there must be a certain air pressure to overcome the resistance of the air supply system and the material column, and to maintain a certain top pressure of the blast furnace.
Blast furnace blower is the most important power equipment of blast furnace. It not only directly provides the oxygen required for blast furnace smelting, but also provides the gas power required to overcome the resistance of the blast furnace material column. The blowers used in modern large and medium blast furnaces are mostly centrifugal blowers and axial blowers driven by steam turbines. In recent years, large-capacity synchronous electric blowers have been used. Although this kind of blower consumes a lot of power, it is easy to start, easy to maintain and less investment. Blast furnace smelting requires that the blower can supply a certain amount of air to ensure the combustion of a certain amount of carbon; the required air volume is not only proportional to the furnace capacity, but also related to the degree of strengthening of the blast furnace, generally based on the unit furnace capacity of 2.1～2.5m3/min Equipped with air volume. But in fact, many blast furnaces are equipped with a fan capacity that is greater than this ratio considering the development of production.
