CA1200787A - Method and apparatus in screening fibre suspensions - Google Patents
Method and apparatus in screening fibre suspensionsInfo
- Publication number
- CA1200787A CA1200787A CA000418953A CA418953A CA1200787A CA 1200787 A CA1200787 A CA 1200787A CA 000418953 A CA000418953 A CA 000418953A CA 418953 A CA418953 A CA 418953A CA 1200787 A CA1200787 A CA 1200787A
- Authority
- CA
- Canada
- Prior art keywords
- reject
- conduit
- flow
- accept
- screen
- 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.)
- Expired
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 18
- 239000000835 fiber Substances 0.000 title claims abstract description 17
- 238000012216 screening Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000012298 atmosphere Substances 0.000 claims abstract description 4
- 230000005291 magnetic effect Effects 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 2
- 230000002706 hydrostatic effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0009—Paper-making control systems
- D21G9/0018—Paper-making control systems controlling the stock preparation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
- B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
- B01D33/763—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes for continuously discharging concentrated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/804—Accessories integrally combined with devices for controlling the filtration
- B01D33/806—Accessories integrally combined with devices for controlling the filtration by flow measuring
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/28—Position of the filtering element
- B01D2201/282—Filtering elements with a horizontal rotation or symmetry axis
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8200073-8 | 1982-01-08 | ||
| SE8200073A SE426328B (sv) | 1982-01-08 | 1982-01-08 | Sett och anordning vid silning av en fibersuspension i en trycksil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1200787A true CA1200787A (en) | 1986-02-18 |
Family
ID=20345660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000418953A Expired CA1200787A (en) | 1982-01-08 | 1983-01-05 | Method and apparatus in screening fibre suspensions |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4479872A (OSRAM) |
| EP (1) | EP0098270B1 (OSRAM) |
| AU (1) | AU1042583A (OSRAM) |
| BR (1) | BR8208047A (OSRAM) |
| CA (1) | CA1200787A (OSRAM) |
| DD (1) | DD209491A5 (OSRAM) |
| DE (1) | DE3269908D1 (OSRAM) |
| FI (1) | FI72758C (OSRAM) |
| GR (1) | GR77172B (OSRAM) |
| IT (1) | IT1153922B (OSRAM) |
| PL (1) | PL239881A1 (OSRAM) |
| PT (1) | PT76058B (OSRAM) |
| SE (1) | SE426328B (OSRAM) |
| WO (1) | WO1983002470A1 (OSRAM) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL81713A (en) * | 1987-02-27 | 1992-03-29 | Filtration Water Filters For A | Method for filtering a fluid and filter system therefor |
| SE470315B (sv) * | 1992-06-05 | 1994-01-17 | Sunds Defibrator Ind Ab | Sätt att styra silningsprocessen vid silning av cellulosahaltiga massasuspensioner |
| US6080274A (en) * | 1997-05-06 | 2000-06-27 | Valmet Corporation | Method for controlling a multi-phase screening apparatus |
| US6165370A (en) * | 1998-01-21 | 2000-12-26 | Voith Sulzer Paper Technology North America, Inc. | Pressure screen monitoring apparatus and method |
| US6585116B1 (en) * | 2000-02-22 | 2003-07-01 | Voith Sulzer Paper Technology North America, Inc. | Screening apparatus for fiber suspension |
| DE10125975A1 (de) * | 2001-05-29 | 2002-12-05 | Voith Paper Patent Gmbh | Verfahren zur Abscheidung von Anteilen aus einer Faserstoffsuspension |
| US6646072B2 (en) * | 2002-01-23 | 2003-11-11 | Equistar Chemicals, Lp | Process for making polyolefin compositions containing exfoliated clay |
| SE0303260D0 (sv) * | 2003-12-04 | 2003-12-04 | Metso Paper Inc | Screening apparatus for screening pulp suspensions with monitoring means |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3410409A (en) * | 1966-01-18 | 1968-11-12 | Bird Machine Co | Screening apparatus control |
| US4042503A (en) * | 1973-12-10 | 1977-08-16 | Beloit Corporation | Classifier and process for recycled fiber separation |
| US4126542A (en) * | 1977-04-22 | 1978-11-21 | Canadian Ingersoll-Rand Company | Pressure drop device for fluid suspensions |
-
1982
- 1982-01-08 SE SE8200073A patent/SE426328B/xx unknown
- 1982-12-14 EP EP82903602A patent/EP0098270B1/en not_active Expired
- 1982-12-14 BR BR8208047A patent/BR8208047A/pt not_active IP Right Cessation
- 1982-12-14 US US06/537,452 patent/US4479872A/en not_active Expired - Lifetime
- 1982-12-14 DE DE8282903602T patent/DE3269908D1/de not_active Expired
- 1982-12-14 WO PCT/SE1982/000427 patent/WO1983002470A1/en not_active Ceased
- 1982-12-14 AU AU10425/83A patent/AU1042583A/en not_active Abandoned
- 1982-12-28 IT IT25001/82A patent/IT1153922B/it active
- 1982-12-30 PT PT76058A patent/PT76058B/pt unknown
- 1982-12-30 PL PL23988182A patent/PL239881A1/xx unknown
-
1983
- 1983-01-05 CA CA000418953A patent/CA1200787A/en not_active Expired
- 1983-01-07 DD DD83247100A patent/DD209491A5/de unknown
- 1983-01-07 GR GR70219A patent/GR77172B/el unknown
- 1983-09-08 FI FI833215A patent/FI72758C/fi not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IT8225001A0 (it) | 1982-12-28 |
| PT76058A (en) | 1983-01-01 |
| PT76058B (en) | 1986-01-16 |
| GR77172B (OSRAM) | 1984-09-10 |
| US4479872A (en) | 1984-10-30 |
| WO1983002470A1 (en) | 1983-07-21 |
| AU1042583A (en) | 1983-07-28 |
| EP0098270A1 (en) | 1984-01-18 |
| PL239881A1 (en) | 1983-07-18 |
| FI833215L (fi) | 1983-09-08 |
| DD209491A5 (de) | 1984-05-09 |
| SE8200073L (sv) | 1982-12-27 |
| SE426328B (sv) | 1982-12-27 |
| BR8208047A (pt) | 1983-11-22 |
| DE3269908D1 (en) | 1986-04-17 |
| FI72758B (fi) | 1987-03-31 |
| IT8225001A1 (it) | 1984-06-28 |
| EP0098270B1 (en) | 1986-03-12 |
| IT1153922B (it) | 1987-01-21 |
| FI72758C (fi) | 1988-05-16 |
| FI833215A0 (fi) | 1983-09-08 |
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| NO178348B (no) | Fremgangsmåte og anordning for fremstilling av cellulosemasse med forbedrede kvalitetsegenskaper | |
| JP2002509204A (ja) | 改善された品質のセルロースパルプの製造方法及び装置 | |
| FI80739B (fi) | Saett att reglera ett spetsfloede i ett hydrocyklonaggregat och ett reglersystem foer att genomfoera saettet. | |
| CA2399881A1 (en) | Method for controlling quality of pulp | |
| US7077930B2 (en) | Method for controlling screening by measuring flow amount consistency of the pulp | |
| US3237763A (en) | Method and apparatus for concentrating fibrous suspensions | |
| US20080006580A1 (en) | Method for removing impurities from a fibrous suspension | |
| FI83241C (fi) | Foerfarande vid urvattning av en cellulosafibersuspension | |
| US4126542A (en) | Pressure drop device for fluid suspensions | |
| FI73758B (fi) | Foerfarande vid uppdelning av ett fibermassafloede. | |
| CA1254153A (en) | Method for dewatering a fiber suspension in a dewatering apparatus | |
| WO1983002293A1 (en) | Method and plant for deaerating fibre suspensions | |
| WO1990000646A1 (en) | A method and arrangement for cleansing a fibre suspension from light contaminants | |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |