| 摘要 |
Continuously operating filtering devices are voluminous when accommodated in a casing. The casing serves to maintain a determined pressure around the filter, for instance by use of released gases. It is the ojective of the present invention to keep the volume as small as possible. This is achieved by using plastic material for the carrier belt. Up to the present, rubber carrier belts have been used. These however impose limitations on the diameter of the guide rollers. A limitation of the roller diameter to 25% in comparison to rubber carrier belts is possible with the use of plastic. In addition, plastic has a better resistance to aggressive substances.
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