Aspiration and filtration system for coal boilers fumes

Fumes extraction system made in Chile for a company operating in the food sector

For fume aspiration from three coal-fired boilers 3 AIRCOM sleeves filters were installed with a total treated air flow of 185,500 m3 / h. For the collection of the pollutant, the extracted air is sucked below the filtering sleeves. The dust contained in the extracted air, due to the considerable decrease in speed, precipitates in the hopper and evacuated by screw conveyor while air cross filtering sleeves passing from outside to inside, depositing the impurities on external part of them.

During the work, the filter is kept perfectly efficient, through a counter-current cyclic cleaning system. The sleeves of the 3 filters, 5 m in length, are made of 100% PTFE fabric (700 g / m2), designed to solve the filtration problem guaranteeing the best durability. For added strength, the sleeve support is made of AISI 316. The necessary depression is guaranteed by a high efficiency centrifugal fan which moves filtered air to the atmosphere through the exhaust pipe. The chimney is also provided with stairs and gallery to be able to carry out the analysis of emissions at the points established by the regulations.

Type of system: N.03 coal-fired boilers fumes extraction and filtration
Air flow: 52,500 m³/h; 66,500 m³/h; 66,500 m³/h
Filter Type: Aircom Sleeves filter 360-5.0 with settling room sleeves 5.0 m. PTFE – Aircom Sleeves filter 432-5.0 with settling room sleeves 5.0 m. PTFE – Aircom Sleeves filter 432-5.0 with settling room sleeves 5.0 m. PTFE
Fan: PRU1120 / T 75 kW in SS316 – PRU1250 / T 75 kW in SS316