Air chute is an equipment using for horizontally conveying dry powdery material such as grinding clinker, cement, fine raw materials, it is made up of a number of thin steel troughs and connect together, it can form a certain slope along conveying direction. In the upper and lower shell of the tank, there are breathable layer. It has advantage such as wear-resist, easy maintenance, low power consumption, noise-free, good sealing, simple structure, safe and reliable operation and easy to change the transmission direction and multi-feeding etc.
Fans

Fans are machinery which rely on the input mechanical energy, improve the gas pressure side by side to send the gas .It is a follower of fluid mechanics.
The fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships and the ventilation, dust and cooling of buildings, ventilation and induced draft fan of boilers and industrial furnaces, air conditioning cooling and ventilation of household appliances, drying and selected of grain, wind tunnel, wind source and promoting the inflatable hovercraft.
Working principle
The working principle of the fan and turbine compressor is basically the same, only because of the flow rate of low gas, small pressure changing; generally do not need to consider the change of the gas specific volume, namely regarding the gas as incompressible fluid handling.