Flat filtering element with a membrane forming a lamellar filtration cell and a tangential flow pressure filter including stacks of such elements
US4816150A · kind A · utility
Inventors
Key dates
| Filing date | Apr 17, 1987 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Apr 17, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D63/082
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Filtration module formed by a stack of tubular membranes shaped as flat cases (1) 0.2 to 2 mm thick and intercalated drains (2) formed as a cloth or a lattice which leaves uncovered the end parts of the case, which are covered by tight and rigid tongues (3). The stack, sandwiched between two rigid plates (5) and integrally mounted to two end flanges (6, 7) which sealingly engage a tubular body, while providing input openings (71) and output openings for the product to be filtered and the filtered product, in parallel for all the cases. The plates provide a free space for the filtrate discharge between the stack and the body. The path length of the filtered product is between 10 and 50 cm and the discharge path length of the filtrate is between 3 and 10 cm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.