Dry powder batch activation system
US5947596A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 1997 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Jun 10, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2101/2805
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system for mixing dry powder and water having a non-pressurized make-up reservoir (10). The make-up water is transferred by a booster pump (14) through a transfer pipe (20) at a predetermined flow rate and pressure for operation of a dry powder eductor (26) fed through powder hopper (28). The educted powder is instantly wetted through an area causing a high shear environment (25). A solution mix tank (32) is placed within the reservoir tank (10) having a turbine mixer (40) for maintaining the polymer solution in a uniform state. The mixed solution is maintained at a predetermined level and is available for transfer through discharge port (50) in batch, upon demand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.