Laminated piece extension type water treatment filler

The present invention relates to a folding spread water treatment, filling material, and is characterized by that before it is spread it is a folded form, and is a kind of lamination formed from several semicircular, circular, semi-ring or polygonal sheets which are identical in shape and area and a...

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Bibliographic Details
Main Authors JISUN CHEN, HAIQING PENG, HONGBIN WEI
Format Patent
LanguageEnglish
Published 18.12.2002
Edition7
Subjects
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Summary:The present invention relates to a folding spread water treatment, filling material, and is characterized by that before it is spread it is a folded form, and is a kind of lamination formed from several semicircular, circular, semi-ring or polygonal sheets which are identical in shape and area and are mutually alternative and fixedly connected together. When it is used, said lamination can be spread in the mode of linear form or arc form, i.e. one or several porous support tubes are inserted into the holes of said lamination, said lamination can be spead leanerly, then the spread laminate canbe fixed by adopting pin or screw-thread combination mode or said lamination can be spread into arc form, its outer most two sheets are connected together so as to obtain the invented water treatmentfilling material.
Bibliography:Application Number: CN2001112857