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Particle measurement without dispersion does not work. Therefore Parsum offers a wide range of dispersion equipment for their inline probes – the IPP-series. These small accessories, mounted directly on the probes, are being operated with compressed air and dilute and separate various particle streams with different properties. There are dispersers with low shearing forces ensuring a sensitive treatment of the granules, while particles below 100 µm can be dispersed with high shearing forces, such as found in milling processes. Thus, sticky, wet and most adhesive particles can be separated as needed. As well as for dispersion in liquids and the extraction of dispersed partial currents, there are suitable solutions available.
This means that the growth of particles in fluidised beds or high shear processes can be tracked in real time. A moisture content of 20 % and more does not interfere the measurement. Even if layers of powder settle on the surface and the windows of the processing chamber, the optics of the probe remain free, due to an elaborate beam design. In continuous processes this enables cleaning intervals of up to several weeks and months.
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