On-Line Size Analyzers for the Cement Industry

Automated processes and quality control place high demands on the uptime performance of on-line size analyzers, and all Malvern Process systems are designed from the outset for process use. The success of Malvern's on-line size analyzer comes from their ability to be installed almost anywhere, thanks to strong interfacing capabilities, both to the process and to the control system.

• Simple reliable concept, with proven industrial usage and acceptance
• Representative sampling to ISO 8656-1
• Flexible system integration and user interface
• Customer quality procedures easily accommodated in design

The Insitec on-line size analyzer is used for real-time measurement of final grade cement material in the finish mill. Volumetric size fractions are correlated to Blaine to allow real-time fineness estimation, as well as correlation to compressive strength data.

The most common location for an Insitec on-line size analyzer is in the final grade cement stream exiting the separator of the finish mill. The mass flow rate of the dry powder can be up to 150t/h, and the measurement will take place in a gravity chute, an air slide or at the end of a conveyor .

The Insitec on-line size analyzer can also be used to monitor size at the exit of the raw mill in clinker production.

There are several cement solutions available:

Environment		Analyzer		Accessories		Process Interface		Useful for.
High tonnage (>50t/h)		Continuous measurement, static analyzer: Insitec T		Abrasion resistant ceramics		Primary sampling: Auger Secondary sampling: Jet stream eductor		Final grade cement Raw mill exit Coal mill exit
Medium tonnage (<50t/h) continuous measurement		Continuous measurement, static analyzer: Insitec T		Abrasion resistant ceramics		Jet-stream eductor		Final grade cement Raw mill exit Coal mill exit
General QC and trouble shooting		At-line measurements, mobile analyzer: Insitec Voyager		Abrasion resistant ceramics		At-line		Finish mill Raw mill Coal mill