Material drying process
US5596815A · kind A · utility
22Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1994 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Jun 2, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B1/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is provided for drying raw material that comprises solids and a substantial amount of moisture. The process in its basic form involves the steps of forming the raw material into pellets by extrusion under pressure through a forming die into pellets with the solids compacted into a cohesively secured mass and then drying the pellets thus formed to reduce the moisture to a desired percentage. Raw material that has an excessive amount of moisture such that they cannot be extruded are first mixed with a dry material to reduce the moisture content to the point where they can be extruded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.