| 摘要 |
<p>An arrangement in air treatment plants and comprising a frame (2), a filter connectable with the frame (82) and a casing, which is meant to reach around the filter. The frame (82) shows holding means (5) for holding the filter to the frame. The holding means (5) comprise pivotable fastening arms (7), which are arranged to be able to be pivoted towards a flanging (9) extending from the opening (10) of the frame (2) and towards a surface of the frame. Said surface is meant to be turned towards the filter. The filter is anchored to the frame (2) by squeezing between the fastening arms (7) and the flanging (9). The filter is provided with stiffenings, partly in form of individual elements, partly produced by influence of the filter material by means of heat and pressure. The said casing is provided with closing devices permitting that a consumed filter can be wrapped up by the casing in such a way that the casing fits tight around the filter.</p> |
