CEM India - Abstract

Abstract Information :

Fine dust pollution from industrial plants is one of the important issues that affects the lives of many people. The use of ever-improving filter technologies and the long-term reduction in emission limit set by many international environmental authorities is therefore very welcome. However, measurement technology must also be improved and adapted as lower limit values create difficulties in proving compliance with the required industry standards. Validating continuous particle monitors for initial correlation testing and annual audit is becoming increasingly difficult. In addition to this, further problems are encountered when the process conditions change in the stack, i.e., during co-firing, change in plant operation (half load / full load), and degradation of filter hoses due to small leakages. For this case, our customers come to SICK for advice around a solution for “their” problems, because during a filter degradation the proportion of coarse particles increases, and the reported dust readings could be implausible. The same effect can occur, maybe vice versa with increasing fine particles during co-firing with biomass or change of plant operation. In the current situation the correlation curve that was determined during the calibration process under “normal” operation is no longer valid. To make things worse, customers mainly use a linear correlation, which clearly cannot reproduce the large and rapid changes in dust level. To overcome the problems in the current dust measurement technology, SICK is developing a serial device for measuring particulate mass and particle size distribution continuously. Through measuring the particle size distribution, the device is sensitive for particle size changes of the emission source. It also measures the mass concentration of dust directly after an initial calibration and comes with a minimum measurement range of 0.1mg/m³. In this talk, we want to present field test data and experience with real operation of industrial plants regarding measurement results and insights from them, as well as experiences with calibration and maintenance. We also provide insights into our current and future work and enable the use of this technology in all industries.