Dvel

Velocity Measurement For Bulk Solids

Extremely Accurate Velocity Measurement for Bulk Solids
Measurement of Dust, powder or granules in pneumatic conveying and gravity pipes

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Product Information

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Use

The velocity measurement Dvel is used to determine the velocity of bulk material like dust, powder or granulates which are being transported in pneumatic conveying systems or by gravity in pipelines.

Function

Integrated into a control concept the value can be used to reduce product degradation / abrasion and to minimize the quantity of
required conveying gas.

In combination with a concentration measurement the mass flow rate can be determined.

The measurement principle is based on the detection of moving solid particles. Nonmoving particles are not being detected. For a runtime measurement two sensors in the instrument record signals. The time which the product needs for the distance from sensor 1 to sensor 2 is calculated by means of the two signals using a correlation calculation. Since this is an absolute measured value, a calibration is not required.
Adjustments to different products or process conditions are done automatically.

The device can not be used if the product creates an electrically conductive layer on the pipeline walls by abrasion or caking.