Apparatus to convey pulverized material
US11261040B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 2019 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Sep 17, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G53/48
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A conveyor for pulverized material comprises in combination a conduit, a screw rotatably mounted within the conduit having an material inlet end and material discharge end, means for rotating the screw, means for supplying material to the screw at the material inlet end, whereby the material will be compacted as it is advanced by the screw to the material discharge end, and means for admitting a gas under pressure to the compacted material at the material discharge end to render it fluent. In a portion of the screw a material seal is formed by the compacted material being advanced by the screw, wherein there are material pockets formed between adjacent screw flights, wherein the pocket size volume is at its maximum nearest the material inlet end and at its minimum nearest the material outlet end, with at least twice as many pockets of minimum size as of maximum size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.