Reducing Pressure Drop in Cyclones by a Stick

It is found that a thin stick inserted into a cyclone separator can substantially reduce the pressure drop. The percentage reduction in pressure drop is dependent on the cross-section shape, size, and placed position of the stick. By using talcum powder (mass mean diameter is 10.14 mu m) as the test powder, the experiment results show that the stick can reduce the pressure drop of the cyclone by approximately 20% at the same total separation efficiency and flow rate. If the cyclone is used in a two-stage separation system and a reduction of the efficiency within 5% is permitted, the pressure drop can be reduced more than 50%.