ABC 7: Cyclone Plug-Up Detector

Wherever cyclones are used as separators, blockages of the cellular wheel sluice, which are caused by material accumulation, may occur. Material and dust will then escape into the atmosphere. Production interruptions and pollution of the environment are the result. The GreCon Cyclone Plug-Up Detector ABC 7 monitors the material flow in critical zones. Accumulation of material will trigger an alarm which will cause the shut-down of fans. Infrared transmitters and receivers are mounted on the cyclone walls to monitor the material flow. Unlike usual light barriers, the infrared signal penetrates the material flow and is registered by the receiver.

An increase in density of the material flow will interrupt the infrared signal. If the receiver does not register any signal, an alarm will be immediately activated, and the material flow to the cyclone will be automatically stopped.

To avoid that short-term increases in material density lead to an alarm and shut-down of the relevant plant area, an alarm threshold is integrated in the system. The time period, after which the system should react, can be determined.