抄録
A fabric filter is a high efficiency dust collector. However, large penetration is observed during the use of a virgin fabric and at the beginning of the filtration cycle after the cleaning operation.
In this paper, the characteristics of penetration of felt fabrics, i. e. changes in diameter and concentration of dust penetrating the fabric, are discussed based on the data obtained using the isokinetic sampling technique with a small probe and a particle counter with light scattering. The following conclusions are obtained:
1) Penetrations become larger as dust particle size and the weight of felt fabrics decrease.
2) Instantaneous penetrations for various particle sizes decrease almost exponentially with dust load. The decrease rates depend not on particle diameter, but on the kind of fabrics.
3) Air humidity does not have much effect on particle penetration.
