Effects of Surface Finish of Nonwoven Fabric Bag Filters on Filter Efficiency

被引：10

作者：

Fukasawa, Tomonori ^{[1
]}

Kanaoka, Chikao ^{[2
]}

Ishigami, Toru ^{[1
]}

Fukui, Kunihiro ^{[1
]}

机构：

[1] Hiroshima Univ, Grad Sch Adv Sci & Engn, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima 7398527, Japan

[2] Kanazawa Univ, Grad Sch Nat Sci & Technol, Kanazawa, Ishikawa 9201192, Japan

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2022年 / 45卷 / 01期

关键词：

Air permeability distribution; Filter efficiency; Nonwoven filtration media; Pressure drop; Surface finish; PILOT-SCALE; OPERATING-CONDITIONS; AEROSOL FILTRATION; CAKE FORMATION; DUST EMISSION; JET; PARAMETERS;

D O I：

10.1002/ceat.202100351

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The effects of the surface finish of the bag filter for industrial use on the spatial distributions of the fiber mass, air permeability, and thickness were examined using a nonwoven fabric filter made of polytetrafluoroethylene (PTFE) with no surface finish and two nonwoven fabric filters made of PTFE with different surface finishes, i.e., resin finish and membrane finish. The surface finish had no impact on the non-uniformity in air permeability distribution. However, the air permeability of the filters was reduced with the use of a surface finish. In addition, the specific filtration resistance of the filter media increased by approximately 1.2 times in the case of the resin finish and 4.2 times for the membrane finish. Hence, the influence of the membrane finish on the filter efficiency is extremely strong.

引用

页码：92 / 99

页数：8

共 35 条

[1] Numerical and experimental study of pulse-jet cleaning in fabric filters [J].