| 摘要 |
PROBLEM TO BE SOLVED: To treat a large amount of relatively large dust such as cotton dust and fiber chips with a simple constitution and to replace a filter together with a casing periodically to do maintenance by fitting the casing having a filter layer attachably/detachably to the air suction part of a blower. SOLUTION: A front part filter unit 1 having a pile type filter 24 is fitted to a housing 6 by making holes engage with hook 9. Both side parts and the upper part of the housing 6 are opened, and a coars wire net 16 with large meshes which supports a side part filter 3 and an upper part filter 4 is molded in a U-shape. In the side part and the upper part, support members 17 connecting a front wall 11 and a rear wall 12 are installed. In this way, the filter 3 and the filter 4 form the side wall, and maintenance is completed by replacing these. Relatively large dust such as cotton dust is removed by the front part filter unit 1, and fine dust such as cigarette odors is removed by the filter 3 and the filter 4. |
