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On-line particle monitoring in a spray dryer

Particle & Droplet Imaging

In-situ monitoring of particles improves product quality and can help to optimize the efficiency of particle based processes.

LaVision’s ParticleMaster inspex systems visualize and analyze particle size, shape and velocity applying high magnification shadow imaging.  Particles can be solid particles, droplets or gas bubbles with physical dimensions ranging from 5µm to several millimeters in size. Good statistical sampling for robust quality control measurements is achieved recording a large number of particles at high data rates. In addition to other particle analysers, the imaging approach also reveals absolute particle number density, volume fraction and mass flux.

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ParticleMaster inspex in emitter-receiver configuration

ParticleMaster inspex measured quantities:

  • size and shape: diameter, perimeter, circularity …
  • velocity and mass flux
  • cumulated statistics D10, D32, percentiles Dv10, Dv50, Dv90
  • size histograms, scatterplots

These compact and highly integrated imaging systems are especially designed for quality control applications in industrial environments. The instruments are factory calibrated, splash-proof and eye-safe with a well-defined mechanical interface for test bench integration.

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ParticleMaster inspex
probe configuration
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The ParticleMaster inspex systems are available in a variety of setup configurations, each optimized for a your application scenario. For manual sample testing a benchtop system offers the highest flexibility for laboratory use. The on-line probe configuration offers a higher process integration for continuous particle monitoring in e.g. a bypass flow cell. Finally, the compact in-line probe can be completely installed inside the particle flow for in-situ measurements of a particle generating process.

In dilute and medium dense particle dispersions these probes work without any further sample preparation. Additional sample preparation and dilution extend the operational range to even higher density particle flows.

The ParticleMaster inspex software package automatically identifies valid particles in the recorded images and calculates all relevant particle properties with outstanding processing speed including statistical information in real-time.

As the ParticleMaster inspex systems are based on imaging, the visual feedback of highly resolved particle images gives you the necessary confidence in the quality of the measurement.

System Features
  • in-situ particle imaging: size,shape, velocity with statistics
  • no sample preparation required for transparent probe volumes
  • compact self-contained probes and lights
  • fully factory calibrated for particle size and probe volume dimensions
  • automated particle image recording and analysis
Applications
  • spray testing: water, fuel, paint, household
  • on-line control of powder, solid particles: alloys, ceramics, grains
  • inspection of bubbles: heat exchanger, industrial processes
  • particle monitoring in spray dryers

Product Information

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