Mixing apparatus having plurality of different blades with multiple functions
US4037826A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1976 |
| Grant date | Jul 26, 1977 |
| Priority date | — |
| Expiry date | Apr 26, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F35/7547
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A mixing apparatus for mixing particulate material is described in which a plurality of different shaped blades are employed for thorough rapid mixing as the material moves downward through a mixing chamber and for impelling the mixed material downward through a discharge opening at the bottom of such chamber. A pair of convoluted lower mixing blades, which spiral downward and inward, are used to mix, to impel the material downward through the discharge opening, and to scrape such material from the conical bottom surface of the mixing chamber. First and second pairs of longitudinal intermediate mixing blades of different lengths positioned above the convoluted blades mix and scrape the material from the cylindrical side surface of the mixing chamber. A plurality of upper deflector blades are attached to the periphery of an upper baffle plate to deflect the material downward after it is thrown outward from the rotating baffle plate when the material is fed onto such baffle plate through the inlet openings of the mixing apparatus. A pair of separate screw conveyor feeding means are employed to transmit two different materials separately into the mixing chamber. For example, a first m…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.