System, apparatus, and method for reducing moisture content of particulate material
US6584701B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2002 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Jan 17, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B21/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system for drying particulate material in a drying hopper (DH) has a plurality of gas flow paths, one (FP1) of which extends from a compressed gas inlet (16) to a first sub-system (SS1) that includes a membrane dryer(MD) and a heater (EH′), whereby dried and heated gas is supplied to a lower portion (36) of the hopper, and another (FP2) of which extends from the inlet (16) to a second sub-system (SS2) that includes a mixing device (30) and a heater (EH). The mixing device uses compressed gas to induce a flow of gas from the hopper and mixes the compressed gas with gas withdrawn from the hopper. The mixed gases are heated and supplied to a second portion (34) of the hopper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.