Optimisation of pneumatic conveyors working conditions

Since the pneumatic conveyors are great users of electricity in woodworking companies, especially in Croatia, there are some possibilities for improving energy consumption, by means of controlling the fan rpm. During the work of the a conveyor, the changing of air pressure and velocity will be registered by means of the measuring device. The incoming value of the voltage will be converged in regulating the voltage of the frequency converter. In that way, by changing the rpm of the electric motor, it is possible to control the value of the necessary air power.