Hammer mill
US4690339A · kind A · utility
Inventor
Key dates
| Filing date | Aug 29, 1986 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | Aug 29, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S241/604
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The hammer mill comprises a horizontally arranged grinding chamber (1), at the periphery of which several supply ducts (4) with an inlet (7a) for the coarse material to undergo size reduction are distributed, each supply duct (4) being associated with a corresponding adjacent discharge duct (5) with an outlet (7b) for the product of reduced size. The inlets (7a) and the outlets (7b) are alternately arranged and uniformly distributed over the periphery of the grinding chamber and the grinding chamber (1) is thereby subdivided peripherally into a corresponding number of mill segments which are each defined by a supply duct (4) with an inlet (7a) and an associated discharge duct (5) with an outlet (7b). A special feed proportioning apparatus is provided with coaxial cells (21, 22) and several proportioning screws (23) so as to continuously provide the supply ducts (4) of the hammer mill with various coarse materials from corresponding cells (21, 22). The hammer mill and the feed proportioning apparatus are both suitable for various loose materials and size reduction operations and offer particular advantages for the preparation of mixed fodder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.