Pulverizing system purging
US6435431B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | May 8, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C23/18
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A powderizing assembly includes a product line for receiving product sized powderized material from a powderizing mill, and a purger assembly for receiving non-product sized material from the mill. Non-product sized material is periodically removed from the mill and fed to the purger. The purger assembly includes a purge line in parallel with the product line for receiving material from the mill. The purge line includes a cyclone separator and a filter. A first valve is operable to direct material from the mill to one of the product line or the purge line. The first valve and a second valve are operable to isolate the product line from the purge line. A method of purging a powderizing mill includes providing a purger assembly in communication with the powderizing mill, diverting flow from a product line in communication with the powderizing mill to the purger assembly, and interrupting a size classifier of the powderizing mill to allow non-product sized material from the powderizing mill to be fed to the purger assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.