Mixing apparatus and processes
US4832500A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 1987 |
| Grant date | May 23, 1989 |
| Priority date | — |
| Expiry date | Feb 2, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15D1/009
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Apparatus for mixing or otherwise agitating fluid material comprises an elongated vessel (1) to contain the material, means (6, 7, 9, 10) to impose oscillatory motion upon the material in a lengthwise direction, and a plurality of stationary obstacles (19, 35) mounted on the inner wall (2) of the vessel and arranged in sequence lengthwise. The obstacles present sharp ridge-form tips (20, 37) each ridge pointing in a direction (30) at right angles to that of the oscillating motion. Each adjacent pair of obstacles and the length of vessel wall between them define a trough-shaped space (26) in which the oscillating motion repeatedly forms vortices and then ejects those vortices vigorously into the remainder of the fluid outside the trough, so promoting the agitation of that fluid. The invention applies particularly to cylindrical vessels in which the obstacles are ring-shaped (19) or are constituted by the successive turns of a helix (35). A steady longitudinal motion of the fluid through such a vessel may be imposed upon the oscillatory one; also the means to introduce two fluids separately at one end of such a vessel and withdraw them as a mixture from the other end. The specificati…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.