Method for cleaning a nozzle arrangement in a spray drying apparatus, and spray drying apparatus for carrying out the method
US10443933B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2013 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Aug 2, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B9/027
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a spray drying apparatus, comprising in a usual manner a drying chamber, an air disperser, and at least one pressure nozzle arrangement (4), means are provided for emptying the feed in the nozzle arrangement(s) (4) after the supply of feed from a feed system (5) is halted and before the nozzle arrangement(s) (4) are removed from the drying chamber and positioned in a cleaning system (7). The emptying takes place while maintaining atomization in the nozzle arrangement (4). The feed emptying system (6) comprises a pump (60), a pressurized air/gas source (61) and a conduit (62), and the spray drying apparatus at least one valve (45, 53, 63, 64, 65, 66) allowing switching from the feed system (5) to the feed emptying system (6).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.