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SpeedFlow 2.0 - Velocity measurement for solids

Velocity measurement for solids

  • Usable in free fall and in pneumatics
  • Continuous speed measurement of solids (powder, granules, dust ) in metal pipes
  • Measurement directly in the conveying stream / entrained flow
  • Measurement is completely independent of material
  • Simple retrofitting using a welding socket

 

Use

The SpeedFlow was specially developed for the continuous measurement of the speed of solids such as granules, powder and dust in metal pipes.
The sensor can be used in free fall lines or in pneumatic conveyors. The measurement is completely independent of the material. The range of application can start with a material speed as low as 0.75 m/s.

Function

The SpeedFlow uses the triboelectric effect. When solid particles fly past and impact the 2 sensor rods, this leads to a charge transfer (induced voltage). These electric signals are fed to the correlator, which precisely determines the runtime between the two rods. With the defined distance of 8 mm between the two rods, the speed can thus be determined. The commissioning takes place in the installed state. The speed is output as a 4 ... 20 mA signal.

Mounting and Installation

For the assembly of the sensor, the installation location is specified in accordance with the conveyed inlet and outlet paths. The socket is welded on at the specified installation location and then a borehole of 20 mm is drilled through the socket and through the line. The sensor is then adjusted to the wall thickness, inserted and fixed with the help of the coupling nut. The distance between sensor and analysis unit can be a maximum of 300 m.

Technical Data

Application examples

Velocity measurement of grains in free fall
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Velocity measurement of PVC granules
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Velocity measurement of bitumen granules
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