System and method for eliminating process gas leak in a solids delivery system
US8496412B2 · kind B2 · utility
6Cited by
28References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2006 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | Jun 18, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G2207/40
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A system for controlling gas leakage in a solids delivery system is provided. The system includes a bulk solids pump comprising an inlet for a particulate material and an outlet for discharge of said particulate material. The system also includes a buffer gas channel configured to impede backflow of process gas into the bulk solids pump, such as from a downstream system or process. The system further includes a pressure differential system configured to control a flow rate of the buffer gas and maintain a positive differential in pressure between the buffer gas and the process gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.