Title :
The latest technology in air flow measurement for the cement industry
Author :
Melick, Todd ; Robinson, Andrew D.
Author_Institution :
PROMECON USA, Inc., Orrville, OH
Abstract :
Difficult process stream conditions have prevented on-line air flow measurement for hot dusty applications in cement plants in the past. This paper discusses technology that measures the velocity of high temperature (1100degC (2000degF)) dust laden gas streams. The system utilizes the triboelectric principle by aligning two metal rod sensors parallel to the longitudinal/flow axis of the duct. Electrical signals created by dust particle clouds passing the upstream and downstream sensors are cross correlated and referenced by their time shift. The time shift and distance between probes provides a flow velocity. This measurement method has no drift and thus requires no calibration, and imparts no pressure drop to the system. Various applications at different cement plants was discussed to illustrate how the ability to measure dust laden gas flows has improved monitoring, control, and process optimization of the cement making process
Keywords :
cement industry; ducts; dust; flow measurement; industrial plants; velocity measurement; air flow measurement; cement industry; cement making process; cement plants; duct; dust laden gas streams; dust particle clouds; metal rod sensors; process control; process monitoring; process optimization; time shift; Calibration; Cement industry; Clouds; Ducts; Fluid flow measurement; Pressure measurement; Probes; Sensor systems; Temperature sensors; Velocity measurement;
Conference_Titel :
Cement Industry Technical Conference, 2006. Conference Record. IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
1-4244-0372-3
DOI :
10.1109/CITCON.2006.1635723
