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Separation and classification

The efficient operation of separation and classification processes, whether wet or dry, relies on continuous particle sizing for:

  • Precise and automated closed loop control.
  • Upset detection.
  • Filter breakthrough detection.
  • Minimizing waste/unnecessary recycle.
  • Attaining exemplary product quality.

Separation and classification processes divide an incoming stream into two on the basis of particle size – a product or feed for further processing, and a return/waste flow.

Real-time particle size data ensure precise control of the cut point between these two streams, optimizing product quality and minimizing waste. In cement finish milling circuits, for example, automated control of the classifier is a proven strategy for meeting cement specifications while maximizing mill throughput, by reducing recycle rates.

The ability to instantly detect a problem safeguards product quality. For certain separation processes, it may also prevent uncontrolled release of particulate matter. A typical example is the use of flocculation and classification within the minerals industry to recycle water.

For both wet and dry separation processes, Malvern works in partnership with equipment suppliers and customers, bringing the analytical know-how to engineer analytical solutions that seamlessly within existing control platforms and accelerate the development of effective automated control strategies.


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Particle sizing for mill control and optimization Article (English)

Laser diffraction analysis provides the information needed to optimize particle size and increase milling efficiency in cement manufacturing processes. Milling circuit optimization helps reduce environmental footprint and improves efficiency.

Keywords: Powders and granules English Article Insitec Dry Particle size Laser diffraction Cement Milling and grinding Separation and classification Plant optimization 

Using real-time particle size analysis to automate cement milling Article (English)

When Sacci moved to automate its material analysis operations, it assessed its options for online particle size measurement. This article considers the company's experience with online analysis while examining in some detail the benefits obtained.

Keywords: English Article Insitec Dry Particle size Laser diffraction Cement Milling and grinding Separation and classification Plant optimization 

Online Particle Size Analysis for Optimal Spiral Jet Milling Article (English)

This article examines the principles of operation of industrially important mills and how real-time laser diffraction particle size measurement facilitates optimization and automated control.

Keywords: Powders and granules English Article Particle size Milling and grinding Separation and classification Plant optimization Pharmaceutical manufacturing 

Automated control of the milling circuit Article (English)

This article examines the need for optimal control and looks at automated mill control that uses on-line particle size measurement .

Keywords: English Article Insitec Dry Particle size Mining, minerals and metals Milling and grinding Separation and classification Plant optimization 

Using in-line particle size analysis to reduce the cost of production Article (English)

Ferrari Granulati transitions from manual off-line analysis of its marble granulates and powders and reports significant business advantages due to increased throughput, reduced energy consumption and improved product quality.

Keywords: Powders and granules English Article Parsum IPP 70-S Particle size Spatial filter velocimetry Minerals Separation and classification Plant optimization 
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