Abstract
Three kinds of FeCrAl fibers with different pore sizes were prepared by design, fabrication, sintering and repression. The pore size, resistance and capacity were tested. The results show that the initial resistance and efficiency is reduced, while the capacity is increased with the increase of pore size. The pulse-jet cleaning of fibers were operated based on VDI3926 standard at different face velocity and cleaning pressure. The result indicates sample 3 with 22 μm fiber diameter have the longest cleaning lifespan. The four stages of the standard VDI3926 are completed in the face velocity of 0.06 m/s, the dust concentration of 2 g/m 3 and pressure drop prior to pulse-jet cleaning is 3500 Pa. The sample increment weighing reaches 12.31 g, the average efficiency is as high as 98.5% and consumed time is 3 h after 30 times artificial aging. The fiber with 22 μm diameter shows the longest lifespan.
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