SE9601915L - Dust removal device - Google Patents

Dust removal device

Info

Publication number
SE9601915L
SE9601915L SE9601915A SE9601915A SE9601915L SE 9601915 L SE9601915 L SE 9601915L SE 9601915 A SE9601915 A SE 9601915A SE 9601915 A SE9601915 A SE 9601915A SE 9601915 L SE9601915 L SE 9601915L
Authority
SE
Sweden
Prior art keywords
throttling
enlargement
suction
inlet
forming
Prior art date
Application number
SE9601915A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9601915D0 (en
SE506595C2 (en
Inventor
Anders Tommy Linden
Harry Ingemar Myren
Lars-Erik Oennerloev
Original Assignee
Valmet Karlstad Ab
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 Valmet Karlstad Ab filed Critical Valmet Karlstad Ab
Priority to SE9601915A priority Critical patent/SE506595C2/en
Publication of SE9601915D0 publication Critical patent/SE9601915D0/en
Priority to DE0912802T priority patent/DE912802T1/en
Priority to EP97907517A priority patent/EP0912802B1/en
Priority to CA002252909A priority patent/CA2252909C/en
Priority to JP54213297A priority patent/JP4001351B2/en
Priority to DE69713331T priority patent/DE69713331T2/en
Priority to PCT/SE1997/000382 priority patent/WO1997044525A1/en
Priority to AT97907517T priority patent/ATE219188T1/en
Priority to US08/861,400 priority patent/US5878462A/en
Publication of SE9601915L publication Critical patent/SE9601915L/en
Publication of SE506595C2 publication Critical patent/SE506595C2/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G3/00—Doctors

Landscapes

  • Paper (AREA)
  • Cleaning In General (AREA)
  • Cyclones (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Percussion Or Vibration Massage (AREA)

Abstract

An apparatus for removing dust released, for instance, during the production of a soft crepe paper web (1) which is creped off a Yankee cylinder (2) and spread laterally comprises a dust suction box (18) consisting of a housing (20) with an inner suction chamber (21), said housing (20) having a first inlet (24) in the form of a suction gap, a main part (25) and first and second parts (26, 27) which define said suction gap (24) between them. According to the invention the main part is in the form of part of a cylinder to provide a corresponding curved inner side (34) in the suction chamber, and the suction gap comprises an outer gradual throttling (29) and an inner gradual enlargement (30), said throttling and enlargement merging at a transition (31) where said throttling is maximal. The first inlet forming part (26) comprises a flat surface (33) that defines its side of said enlargement whereas the second part (27) forming the inlet comprises both a curved surface (36) having predetermined radius and such an arc length that it defines the whole of its side of the throttling (29) and an initial part of the enlargement (30), and also an inner, flat surface (37) extending at a tangent from the curved surface (36) and forming an acute angle alpha with a tangent to the curved surface at said transition.
SE9601915A 1996-05-21 1996-05-21 Dust removal device SE506595C2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
SE9601915A SE506595C2 (en) 1996-05-21 1996-05-21 Dust removal device
AT97907517T ATE219188T1 (en) 1996-05-21 1997-03-06 DUST REMOVAL DEVICE
JP54213297A JP4001351B2 (en) 1996-05-21 1997-03-06 Dust removal equipment
EP97907517A EP0912802B1 (en) 1996-05-21 1997-03-06 Dust removal apparatus
CA002252909A CA2252909C (en) 1996-05-21 1997-03-06 Dust removal apparatus
DE0912802T DE912802T1 (en) 1996-05-21 1997-03-06 DEDUSTING DEVICE
DE69713331T DE69713331T2 (en) 1996-05-21 1997-03-06 dedusting
PCT/SE1997/000382 WO1997044525A1 (en) 1996-05-21 1997-03-06 Dust removal apparatus
US08/861,400 US5878462A (en) 1996-05-21 1997-05-21 Dust removal apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9601915A SE506595C2 (en) 1996-05-21 1996-05-21 Dust removal device

Publications (3)

Publication Number Publication Date
SE9601915D0 SE9601915D0 (en) 1996-05-21
SE9601915L true SE9601915L (en) 1997-11-22
SE506595C2 SE506595C2 (en) 1998-01-19

Family

ID=20402627

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9601915A SE506595C2 (en) 1996-05-21 1996-05-21 Dust removal device

Country Status (7)

Country Link
EP (1) EP0912802B1 (en)
JP (1) JP4001351B2 (en)
AT (1) ATE219188T1 (en)
CA (1) CA2252909C (en)
DE (2) DE69713331T2 (en)
SE (1) SE506595C2 (en)
WO (1) WO1997044525A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8034192B2 (en) * 2007-11-16 2011-10-11 Andritz Fiber Drying Ltd. Method and system for collecting paper dust
EP3269875B1 (en) * 2016-07-12 2019-03-20 Valmet S.p.A. A dust-handling device for collecting and handling dust in a paper-making environment
CN110840102B (en) * 2019-12-09 2021-07-02 江西白莲智能科技集团有限公司 Library is with dustproof bookshelf
CN115268244B (en) * 2022-08-03 2024-07-09 深圳市佳马钟表有限公司 Intelligent quartz watch

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE459105B (en) * 1987-10-01 1989-06-05 Valmet Paper Machinery Inc KEEPING AND DEVICE FOR DISPOSAL OF DAMS RELEASED DURING THE DISPOSAL OF A PAPER COAT
SE463317B (en) * 1989-03-15 1990-11-05 Valmet Paper Machinery Inc DEVICE BY A CRAZY CREATOR
US5011574A (en) * 1990-02-28 1991-04-30 Valmet Paper Machinery, Inc. Creping doctor with two suction chambers in the support beam

Also Published As

Publication number Publication date
EP0912802A1 (en) 1999-05-06
JP2000510918A (en) 2000-08-22
EP0912802B1 (en) 2002-06-12
DE69713331D1 (en) 2002-07-18
CA2252909C (en) 2003-07-29
ATE219188T1 (en) 2002-06-15
SE9601915D0 (en) 1996-05-21
CA2252909A1 (en) 1997-11-27
DE912802T1 (en) 1999-10-07
JP4001351B2 (en) 2007-10-31
DE69713331T2 (en) 2003-01-09
WO1997044525A1 (en) 1997-11-27
SE506595C2 (en) 1998-01-19

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Legal Events

Date Code Title Description
NUG Patent has lapsed