Process for discharging impurities from a hydrocyclone and a hydrocyclone
US6284096A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 5, 2000 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | Jul 5, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04C11/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A hydrocyclone and a process for discharging impurities from a suspension containing paper fibers using a hydrocyclone having a radially inner area. The hydrocyclone includes an inflow for introducing the suspension to be purified, an accepted stock outflow for discharging the purified suspension, a separating part, a reject discharge device for discharging impurities of the suspension, at least one element for adding a diluting liquid at an addition point which is located in a radially inner area of the hydrocyclone, wherein the at least one element has at least one aperture opening axially and opposite to a discharge direction of the impurities. The process includes adding a diluting liquid into the suspension in the radially inner area of the hydrocyclone, wherein the diluting liquid is added in a flow direction opposite to an axial discharge direction of the impurities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.