KilnLoq probe and Extraction device - Webshop, Gas Analysis ...

Unit Operation InstructionKilnLoq probe & EXDthe cooling jacket. The hot water returns by the centre “chamber” and exits the wateroutlet.6.3.3 HEATED SAMPLE PIPEThe purpose with the heated pipe is to transport the sample gas from the cement process tothe filter house. The heated sample pipe consists of a stainless inner pipe, heating cable,insulation material and an outer pipe assembled with two flanges. The power supply for theheating cables enters between the two flanges. To avoid mechanical tensions the inner pipeis “fixed” in only one end. To avoid condensation, the temperature of the gas path throughthe heated pipe is controlled by the Gas Monitoring Unit. The temperature set point isadjusted on the temperature controller for heated sample pipe. The controller is located inthe Gas Monitoring Unit and the default temperature setting is found in data sheets.6.3.4 FILTER HOUSEThe purpose with the filter house is to clean the sample gas from dust before it enters theheated sample hose to the Gas Monitoring Unit. The filter house consists of a stainlesshouse, lid and filter. The house is bolted directly to the heated sample pipe and sealed withan O-ring. The house is heated with four heating elements and it contains connectors forblow back air and sample hose. The stainless sintered filter is fixed only in the removablelid. This gives easy maintenance and allows the filter to extend when the house is heated.To avoid condensation, the temperature of the filter house is controlled by the GasMonitoring Unit. The temperature set point is adjusted on the temperature controller forfilter house. The controller is located in the Gas Monitoring Unit and the default temperaturesetting is found in data sheets.6.3.5 FUNCTIONIn normal operation the gas flows through the heated pipe to the filter house, through thefilter and out to the heated sample hose. The dust is then collected at the inside of thesintered filter. After a pre-adjusted duration the sample stops and the filter is cleaned bycompressed air connected to the filter house and lid. To avoid condensation, thetemperature of the entire gas path through the KilnLoq probe is controlled by the GasMonitoring Unit.6.3.6 COOLING JACKET TIP CLEANING SYSTEMIn order to keep the cooling jacket tip clean from build up the system can be equipped witha cooling jacket cleaner.The cooling jacket cleaner consists of valve that controls airflow. Cooling jacket cleaning isperformed during probe cleaning sequence. Air is lead between the inner of cooling jacketand Heated pipe approximately 1-8 seconds during first part of cleaning sequence.Page 12 of 27