Polymer flocculant mixing and dissolving system configured to control pressure on discharge side of regenerative mixer and method thereof
US10201788B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2016 |
| Grant date | Feb 12, 2019 |
| Priority date | — |
| Expiry date | Jan 13, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2001/007
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A mixing and dissolving system includes a tank where a polymer flocculant in a solid state is mixed with water, a liquid feed unit for feeding an aqueous solution containing the mixed polymer flocculant from the tank, one regenerative mixer comprising a casing arranged at an intermediate position of a channel for the aqueous solution discharged from the liquid feed unit, and a bladed wheel where grooves are formed in a radial pattern on an outer circumference, and is used to mix and dissolve the polymer flocculant through pressure application by rotating the bladed wheel in the casing and forming a vortex flow of the aqueous solution along an inner circumferential wall of the casing, and an adjusting unit arranged at an intermediate position of a channel for the aqueous solution that has passed through the regenerative mixer, and controls pressure on a discharge side of the regenerative mixer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.