In industrial production, it is often necessary to cool high-temperature flue gas to a suitable temperature range in order to treat it. Especially in the metallurgy, cement and power industries, the exhaust temperature of industrial kilns is as high as 300 ～ 600 ℃, even thousands of degrees Celsius, and the working conditions are extremely unstable, which brings great difficult to the bag filter of the latter stage. An air cooler is a device that uses air as a cooling medium to cool the process medium (heat flow) to the required temperature (final cooling temperature).

In general, air cooling is more economical than water cooling. Compared with water cooling, the rapid development of air coolers is mainly due to the following three reasons: First, the rapid development of industry has caused a large increase in industrial water consumption, and there is insufficient water supply. To a large extent, it solves the problem of industrial water supply in water-scarce areas. The second is that it has a higher economy. Even in areas with abundant water sources, under general conditions, air cooling is more economical than water cooling. The third is the requirement to protect the environment. If the enterprises close to the river use river water for cooling and discharge, it is itself a thermal pollution of the water source. The rise of the river temperature will destroy the ecological balance in the river. If the cooling equipment leaks, it will cause pollution to the river more serious. Air cooling reduces water pollution in industrial areas and improves environmental quality.

Air cooler is also called air heat exchanger, referred to as air cooler.. Mechanical air cooler is a kind of flue gas cooling equipment produced by our company. This product is an indirect tube heat exchanger. The heat medium to be cooled is fed from the upper part of the cooler. The heat medium moves turbulently in the pipe and transfers the heat to the cooling pipe, and then turns from the lower part of the cooler to the outlet bin. Drained, the dust in it is retained in the ash bin by inertial force. The cold wind outside the densely packed tubes is sent by several axial fans on the side of the densely packed cooling tubes. This part of the cold wind makes a circular movement outside the row of tubes in the fork row to take away the heat of the cooling tubes and cool it. The other side of the device is discharged into the atmosphere.

The mechanical air cooler is mainly composed of upper header, cooling tube bundle, fan, ash hopper, takeover, unloader, etc.

The tube bundle is the basic component of heat transfer. It is composed of a steel pipe, a tube box, a support beam and a side beam. When the cooled medium passes through the steel pipe, its heat is taken away by the air flowing outside the pipe, and the medium in the pipe cool or condense.

The fan is used to drive air through the tube bundle and take away the heat of the cooling medium, thereby promoting the cooling of the heating medium. The air cooler uses an axial fan.