CA2421886A1 - Method of removing high density stickies from secondary papermaking fibers - Google Patents
Method of removing high density stickies from secondary papermaking fibers Download PDFInfo
- Publication number
- CA2421886A1 CA2421886A1 CA002421886A CA2421886A CA2421886A1 CA 2421886 A1 CA2421886 A1 CA 2421886A1 CA 002421886 A CA002421886 A CA 002421886A CA 2421886 A CA2421886 A CA 2421886A CA 2421886 A1 CA2421886 A1 CA 2421886A1
- Authority
- CA
- Canada
- Prior art keywords
- cleaners
- high density
- stage bank
- stickies
- papermaking fibers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Landscapes
- Paper (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
A hybrid method for processing papermaking fibers to remove high density stickies typically includes utilizing a multistage array of forward cleaners coupled with a flotation cell which increases overall efficiency of the system. In a preferred embodiment, a first rejects aqueous stream from a first stage bank of centrifugal cleaners is treated in a flotation cell before being fed to a second stage bank of centrifugal cleaners. With the improved technique, the accepts from the first stage bank of centrifugal cleaners may be combined with the accepts from the second stage bank of centrifugal cleaners and fed forward to a thickening device, for example. The technique is also suitably employed for removing stickies from material which has already been screened with a fine screen.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/099,610 | 2002-03-15 | ||
| US10/099,610 US7063770B2 (en) | 2000-02-04 | 2002-03-15 | Method of removing high density stickies from secondary papermaking fibers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2421886A1 true CA2421886A1 (en) | 2003-09-15 |
| CA2421886C CA2421886C (en) | 2009-01-20 |
Family
ID=28452304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002421886A Expired - Lifetime CA2421886C (en) | 2002-03-15 | 2003-03-13 | Method of removing high density stickies from secondary papermaking fibers |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2421886C (en) |
-
2003
- 2003-03-13 CA CA002421886A patent/CA2421886C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2421886C (en) | 2009-01-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20230313 |