SE9401272D0 - Use of ultrasound in papermaking - Google Patents

Use of ultrasound in papermaking

Info

Publication number
SE9401272D0
SE9401272D0 SE9401272A SE9401272A SE9401272D0 SE 9401272 D0 SE9401272 D0 SE 9401272D0 SE 9401272 A SE9401272 A SE 9401272A SE 9401272 A SE9401272 A SE 9401272A SE 9401272 D0 SE9401272 D0 SE 9401272D0
Authority
SE
Sweden
Prior art keywords
flocculation
ultrasonic
prevent
ultrasonic energy
flocculations
Prior art date
Application number
SE9401272A
Other languages
Swedish (sv)
Other versions
SE9401272L (en
Inventor
Bo Nilsson
Original Assignee
Bo Nilsson
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bo Nilsson filed Critical Bo Nilsson
Priority to SE9401272A priority Critical patent/SE9401272L/en
Publication of SE9401272D0 publication Critical patent/SE9401272D0/en
Priority to EP95916891A priority patent/EP0755469A1/en
Priority to CN 95193438 priority patent/CN1149898A/en
Priority to PCT/SE1995/000398 priority patent/WO1995028521A1/en
Priority to CA 2187734 priority patent/CA2187734A1/en
Priority to JP7526899A priority patent/JPH09512063A/en
Priority to AU23778/95A priority patent/AU2377895A/en
Publication of SE9401272L publication Critical patent/SE9401272L/en
Priority to FI964078A priority patent/FI964078A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/10—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing sonic or ultrasonic vibrations
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0018—Devices for dispensing fibres in a fluid
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/02—Head boxes of Fourdrinier machines
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/02—Head boxes of Fourdrinier machines
    • D21F1/028—Details of the nozzle section

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)

Abstract

Method for preventing fibre flocculations to occur and to disperse already formed fibre flocculations, better to distribute additive chemicals, to increase fibrillation, to improve reaction and yield from two component chemicals, to prevent the forming of microbiological and other types of build-ups onto machine parts and other parts of the white water circulations, to prevent the filling of wires and felts, to prevent flocculation in coating equipments, to reduce content of air in the stock, and to reduce the foaming. This is achieved by that ultrasonic energy with a frequency of 15 - 60 kHz is added to the stock, machine parts, washing trays or coaters via externally mounted ultrasonic transducers or internally applied submersible ultrasonic units. The ultrasonic energy is added preferably by means of externally onto the head box mounted ultrasonic transducers or internally applied submersible ultrasonic units. The level of ultrasonic energy is controlled by in-line installed formation or flocculation size measurement systems to arrive at desired flocculation. The measured flocculation is used as a criterium for set point optimisation of weight per unit area for the paper or the board produced, and for maximum production per unit of time.
SE9401272A 1994-04-14 1994-04-14 Use of ultrasound in papermaking SE9401272L (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE9401272A SE9401272L (en) 1994-04-14 1994-04-14 Use of ultrasound in papermaking
EP95916891A EP0755469A1 (en) 1994-04-14 1995-04-12 Use of ultrasonics in connection with paper making
CN 95193438 CN1149898A (en) 1994-04-14 1995-04-12 Use of ultrasonics in paper making
PCT/SE1995/000398 WO1995028521A1 (en) 1994-04-14 1995-04-12 Use of ultrasonics in connection with paper making
CA 2187734 CA2187734A1 (en) 1994-04-14 1995-04-12 Use of ultrasonics in connection with paper making
JP7526899A JPH09512063A (en) 1994-04-14 1995-04-12 How to use ultrasonic waves in paper manufacturing
AU23778/95A AU2377895A (en) 1994-04-14 1995-04-12 Use of ultrasonics in connection with paper making
FI964078A FI964078A (en) 1994-04-14 1996-10-11 The use of ultrasound in connection with paper making

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9401272A SE9401272L (en) 1994-04-14 1994-04-14 Use of ultrasound in papermaking

Publications (2)

Publication Number Publication Date
SE9401272D0 true SE9401272D0 (en) 1994-04-14
SE9401272L SE9401272L (en) 1995-10-15

Family

ID=20393661

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9401272A SE9401272L (en) 1994-04-14 1994-04-14 Use of ultrasound in papermaking

Country Status (8)

Country Link
EP (1) EP0755469A1 (en)
JP (1) JPH09512063A (en)
CN (1) CN1149898A (en)
AU (1) AU2377895A (en)
CA (1) CA2187734A1 (en)
FI (1) FI964078A (en)
SE (1) SE9401272L (en)
WO (1) WO1995028521A1 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE352661T1 (en) † 1997-03-20 2007-02-15 Stora Enso Ab METHOD FOR PRODUCING A MATERIAL WEB
US5863387A (en) * 1997-05-01 1999-01-26 Voith Sulzer Technology North America, Inc Ultrasonic device for deflocculating fiber suspension in a paper-making machine headbox nozzle
DE10022110B4 (en) * 2000-05-08 2007-10-25 Dieter Ronnenberg Influencing a web property profile by means of at least one sound field
DE60209147T2 (en) * 2001-12-11 2006-10-05 Ufo Ab ULTRASOUND CONVERTER SYSTEM
DE10317720A1 (en) * 2003-04-17 2005-02-17 Voith Paper Patent Gmbh headbox
US7261823B2 (en) * 2003-06-27 2007-08-28 Ultra Technology Europe Ab Ultrasonic transducer system
CA2597401C (en) * 2005-02-09 2012-12-18 Nippon Paper Industries Co., Ltd. Methods for beating pulp, methods for treating process waters, and methods for producing pulp and paper
CN100587156C (en) * 2005-02-09 2010-02-03 日本制纸株式会社 Method for beating pulp
JP4606923B2 (en) * 2005-03-31 2011-01-05 日本製紙株式会社 Process water treatment method, and pulp and paper production method
JP2006257623A (en) * 2005-02-18 2006-09-28 Nippon Paper Industries Co Ltd Laminated sheet
JP2006257620A (en) * 2005-02-18 2006-09-28 Nippon Paper Industries Co Ltd Newsprint paper
JP2006257629A (en) * 2005-02-18 2006-09-28 Nippon Paper Industries Co Ltd Wallpaper-backing paper
JP2006256324A (en) * 2005-02-18 2006-09-28 Nippon Paper Industries Co Ltd Inkjet recording paper
JP2006257627A (en) * 2005-02-18 2006-09-28 Nippon Paper Industries Co Ltd Wallpaper-backing paper
JP2006257621A (en) * 2005-02-18 2006-09-28 Nippon Paper Industries Co Ltd Book printing paper
JP2006256312A (en) * 2005-02-18 2006-09-28 Nippon Paper Industries Co Ltd Inkjet recording paper
JP2006256313A (en) * 2005-02-18 2006-09-28 Nippon Paper Industries Co Ltd Inkjet recording paper
JP2006257630A (en) * 2005-02-18 2006-09-28 Nippon Paper Industries Co Ltd Release paper base paper
JP2006257626A (en) * 2005-02-18 2006-09-28 Nippon Paper Industries Co Ltd Paper-container base paper
US8123909B2 (en) 2005-11-04 2012-02-28 Nippon Paper Industries Co., Ltd. Apparatus for treating papermaking feedstock
EP2014828B1 (en) * 2006-04-21 2014-03-05 Nippon Paper Industries Co., Ltd. Cellulose-based fibrous material
JP2008038311A (en) * 2006-08-09 2008-02-21 Nippon Paper Industries Co Ltd Method for beating pulp
CA2717923C (en) * 2008-03-31 2017-04-25 Nippon Paper Industries Co., Ltd. Tissue papers for household use
CN101781862B (en) * 2009-12-09 2011-02-23 刘洁 Process for integrating pulping and bleaching by using ultrasonic wave
CN102154914B (en) * 2011-02-24 2013-03-20 钟洲 Method for preparing aramid paper and aramid paper prepared by method
CN103469668B (en) * 2012-06-07 2016-08-10 金红叶纸业集团有限公司 Paper machine, the method applying this paper machine papermaking and prepared paper
CN110574958A (en) * 2019-10-12 2019-12-17 湖北中烟工业有限责任公司 Process for improving spreading rate of reconstituted tobacco
JP6933237B2 (en) * 2019-11-12 2021-09-08 栗田工業株式会社 Suspended solids deposition suppression method, pitch failure suppression method and suspended solids deposition detection method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1185468B (en) * 1958-11-27 1965-01-14 Schickedanz Ver Papierwerk Method for eliminating resin difficulties in papermaking
GB1577664A (en) * 1977-05-10 1980-10-29 Mitsubishi Corp Process for preparing paper from lauan pulp
FI61735C (en) * 1981-03-16 1982-09-10 Valmet Oy FOERFARANDE I SAMBAND MED PAPPERSTILLVERKNING
US4552781A (en) * 1984-04-09 1985-11-12 Westinghouse Electric Corp. Method utilizing ultrasonically induced cavitation to impregnate porous sheet passing through a resin bath

Also Published As

Publication number Publication date
FI964078A0 (en) 1996-10-11
CN1149898A (en) 1997-05-14
AU2377895A (en) 1995-11-10
JPH09512063A (en) 1997-12-02
SE9401272L (en) 1995-10-15
CA2187734A1 (en) 1995-10-26
WO1995028521A1 (en) 1995-10-26
EP0755469A1 (en) 1997-01-29
FI964078A (en) 1996-10-11

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