Imp mill having a uniform wear hammer arrangement
US8550389B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 2008 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Mar 23, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C2210/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A hammermill, such as an imp mill 10, for pulverizing material includes a housing 16 defining a grinding chamber 14 having a grinding apparatus 12 disposed therein. The material is fed into the grinding chamber to the grinding apparatus through an inlet conduit 24, and the resulting ground material is directed from the grinding chamber through an outlet conduit 28. The grinding apparatus includes a plurality of hammer disks 32 axially spaced along a rotor 34, wherein disks 32 are disposed within the grinding chamber 14. A plurality of rows 41-46 of hammers 30 is attached to the hammer disks 32. The hammers 30 of each respective row of hammers are circumferentially spaced around the hammer disks 32, wherein each row of hammers is formed to provide generally uniform wear across each row of hammers. The uniform wear may be achieved by forming the hammers 30 of different hardness or wear resistant qualities, and/or configuring the rows of hammers with different shapes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.