Config

 

The Config parameter screen allows you to configure the fabric filter. The following parameter is provided:

•Fabric Filter Type: Fabric filters consist of a large number of long tubular filter bags arranged in parallel flow paths. As the ash-laden flue gas passes through these filters, much of the particulate matter is removed. Ash accumulated on the bags is removed periodically by various methods of cleaning. The available methods are:

•Reverse Gas (RG): A reverse gas fabric filter uses an off-line bag cleaning technique in which an auxiliary fan forces a relatively gentle flow of filtered flue gas backwards through the bags causing them to partially collapse and dislodge the dust cake. Over 90% of baghouses in U.S. utilities use reverse-gas cleaning.

•Reverse Gas with Sonic (RG + S): A reverse gas sonic fabric filter uses a variation of reverse gas cleaning in which low frequency pneumatic horns sound simultaneously with the flow of reverse gas to add energy to the dust cake removal process.

•Shake and Deflate (Sh + D): A shake & deflate fabric filter uses a method for off-line cleaning in which the bags are mechanically shaken immediately after or while a small quantity of filtered gas is forced back to relax the bags. The amount of filtered gas used is smaller than that used in Reverse Gas cleaning.

•Pulse-jet (PJ): A pulse-jet fabric filter uses a method for on-line cleaning in which pulses of compressed air are blown down inside and through the bags to remove dust cake while the bags are filtering flue gas. Wire support cages are used to prevent bag collapse during filtration and ash is collected outside of the bags.

Copyright © 2023-2024 University of Wyoming. All rights reserved. Visit us at https://www.iecm-online.com/