Hurricane SD System to Reduce Particulate Concentration into an ESP
FOREWORD
Advanced Cyclone Systems, S.A. (ACS) designed and supplied a Hurricane Cyclone System type SD for particulate matter reduction from the flue gas of a biomass boiler. Central de Biomassa Terras de Santa Maria (CBTSM) is a thermoelectric power plant in Portugal. CBTSM produces electricity from forestry biomass residues. All electricity produced at the plant is exported to the utility grid system. The electric power of the biomass plant is 10 MWe. The estimated annual production is about 82 GWhe, enough to serve around 20,000 households.
IDENTIFYING THE PROBLEM AND SOLUTION
CBTSM was facing several problems due to the malfunctioning of the existing multi cyclone. This equipment was suffering heavy wear due to the abrasion caused by aggressive fly ash released by the boiler and therefore needed to be replaced very often. In addition, it the multicyclone was operating with very high pressure drop, overloading the ID fan and representing very high energy costs. Also, the low efficiency was causing a large amount of particles to be dragged into the ESP, consequently its maintenance and operating costs were higher and its lifetime reduced at a higher rate than expected. ACS was contacted to solve this problem. After all data was gathered and analised, ACS proposed 2 SD cyclones to replace the multicyclones. ACS target was not only to reduce the inlet concentration into the ESP but also to prevent the premature wear of the equipment. The SD cyclones were filled with ceramic based cement thereby reducing maintenaince to near zero. The installation was very demanding due to the very short time frame the client had to complete the project. With a huge team effort, ACS was able to deliver the project just 10 weeks after receiving the order.
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