rotary kiln means you can optimize your production and emission values. One particular advantage is that you can specifically monitor the condition of the cement (hydraulic properties) and so be assured of its quality. Sophisticated systems are required for this type of analysis, especially for extracting the gas from the rotary kiln, due to the hard conditions involved including:

• High gas temperatures up to 1,400 °C (2,552 °F)
• Very high dust loads up to 2,000 g/m³ (874 gr/ft³)
• High mechanical stress
• High alkaline, sulfate and chloride content

Compact design, high-grade materials an an efficient water cooling ensure a high mechanical and thermal stability.

The system comprises a device for a periodical rotation of the probe tube of about ±45° as a special feature. Due to this rotation deposits are permanently shaken off and a backing to the probe surface could be prevented.

The sampling system SCP3000 was designed with the specific needs of the cement industry in mind. An aperture on the gas extraction probe is designed specifically to extract gas with a particularly low dust contnt from the rotary kiln.

This sample gas is then purified further in a heated gas filter and supplied to the analysis system. The dust filter and the gas extraction pipe can be cleaned using compressed air on a regular basis or whenever the need arises. The gas extraction probe is mounted on a motorized retraction device. If a malfunction occurs, the probe is retracted automatically to protect it from damage.

All control and monitoring functions are then carried out by a programmable logic controller (PLC).