Milling

Milling

The raw mill has a separate baghouse in older cement plants only. In new plants however, for energetic reasons, the exhaust gas from the kiln passes the raw mill and goes to a combined baghouse.

When dedusting the finish mill, the requirements depend in particular on the fineness of the cement and of its aggregates. A fineness of up to 7,000 cm²/g can only be attained with high-tech filter media. Grinding pure slag or slag sand also often requires an increased efficiency of the filter media. KAYSER offers a great number of needlefelts for this with special Multitex fibre blends, microfibre content or membrane technology.

Case history: Raw millCase history: Finisch mill
Filtering area2 x 2.400 m²9.900 m²
A/C1,2 m/min0,97 m/min
Dust load420 g/Nm³240 g/Nm³
Temp.90 - 120°C
Fineness.3.500 - 4.200 Blaine
Filter mediaPES needlefelt, water and oil repellentPES/PAN Multitex microfibre needlefelt

KAYSER FILTERTECH GmbH