Steam heated dryer drum having stationary siphon and spoiler bars
US4538360A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1984 |
| Grant date | Sep 3, 1985 |
| Priority date | — |
| Expiry date | Mar 26, 2004 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F5/028
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Substantially uniform heat transfer through the cylindrical heat transfer wall of a steam heated hollow dryer drum is attained by longitudinal spoiler bars effecting turbulence of condensate throughout a major extent of the inner surface of the heat transfer wall, and condensate turbulence is generated in a narrow annular area from which a stationary siphon intake head withdraws the condensate from the steam chamber. A turbulence promoter is carried by the intake head and may comprise rigid or yieldably supported structure, e.g. a brush, rigid or flexible bar structure, an array of fingers, mounted on the downstream or off-running side of the intake head having regard to the direction of rotation of the drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.