Pneumatic pressure conveyor for fine material
US4067623A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1976 |
| Grant date | Jan 10, 1978 |
| Priority date | — |
| Expiry date | Jun 30, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G53/22
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
There are two superimposed pressure vessels, the upper of which has a closable material inlet connected to a source of fine material and has a lower end in the form of a cone with a bottom outlet. The lower pressure vessel has a material inlet which is connected through a valve to the bottom outlet of said cone, and has a pneumatic feed conduit connected to its lower portion as a material outlet. A conduit is connected to both vessels for equalizing the pressure therein after the inlet of the upper vessel has been closed and before said valve is opened. A plurality of nozzles are uniformly distributed throughout said cone and are connected to a source of gas under pressure for aerating material in said cone, each of said nozzles having an inside diameter between 0.2 and 0.6 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.