FLK Gas Sampling System - MPIP - Free

SQ250 FLK Gas Sampling System
4. Maintenance
4.1 General information
The following maintenance work must be carried out by the user to keep the equipment in an operational state: The sampling
device, drive motor, traverse rails, valve combination and heat exchanger unit must be thoroughly cleaned of dust and dirt at
least once per week.
• When restarting the Kiln in the first month, the probe should be checked for baked-on deposits and damage each time it
is withdrawn. and also when significant changes to the raw meal mixture occur.
• Regular checking of the coolant circuit.
• Compressed-air and measuring-gas lines, limit switches and particularly the moving parts must be checked for damage
and repaired or renewed if necessary.
- Checks to the cooling circuit
• Here, the flow and level of the coolant fluid should be checked. If required, the coolant should be topped up. As an aid
there is a level mark for 180°C on the expansion vessel. If this is undercut at the corresponding temperature, the
coolant should be topped up.
• If the level mark "min." is undercut in the hot condition, then it is essential to closely examine the cooling system for
leakage. This may occur on the heat exchanger unit, connection hoses or on and in the probe.
• Any unsealed points must be rectified as soon as possible.
• If the flow indicator is no longer in the maximum range, the coolant filter must be removed and cleaned.
The check of the measuring gas line is mainly just a visual check. Here, attention should be given to any water pockets,
blockages or damage that has arisen.
The flow in the analyzer unit should also be checked. A reducing flow indicates that the measuring gas lines are becoming
choked.
An interval of one week between checks is recommended.
Note: Further maintenance measures can be taken from the operating manuals of the separate components.
4.2 Optimizing the complete equipment
It is imperative that optimization of the complete equipment is carried out after start-up.
This can however only take place with normal operation of the kiln or precalcination facility and after the addition of the raw
meal. Optimization involves the following points:
4.2.1 Probe cooling circuit
4.2.2 Automatic insertion / retraction of the probe
4.2.3 Purging duration and interval
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