CA2235836A1 - Blowbox for use in a plant for drying a material web - Google Patents

Blowbox for use in a plant for drying a material web

Info

Publication number
CA2235836A1
CA2235836A1 CA 2235836 CA2235836A CA2235836A1 CA 2235836 A1 CA2235836 A1 CA 2235836A1 CA 2235836 CA2235836 CA 2235836 CA 2235836 A CA2235836 A CA 2235836A CA 2235836 A1 CA2235836 A1 CA 2235836A1
Authority
CA
Canada
Prior art keywords
rows
centre line
upper box
box wall
plant
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
Application number
CA 2235836
Other languages
French (fr)
Other versions
CA2235836C (en
Inventor
Ingemar Karlsson
Roger Sigvant
Claes Halldin
Lars Nilsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Andritz Technology and Asset Management GmbH
Original Assignee
Individual
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
Priority claimed from SE9503822A external-priority patent/SE505113E/en
Application filed by Individual filed Critical Individual
Publication of CA2235836A1 publication Critical patent/CA2235836A1/en
Application granted granted Critical
Publication of CA2235836C publication Critical patent/CA2235836C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Drying Of Solid Materials (AREA)

Abstract

A blow box (2) for use in a plant for drying a material web (1), comprises an essentially horizontal upper box wall (3) having formed therein circular orifices (5) and so-called eyelid perforations (6), each one of which consists of a slit (7) which extends in parallel with the centre line (C) of the upper box wall (3) and of a depression (8) formed in the upper box wall (3) adjacent one side of the slit. The eyelid perforations (6) are arranged in two rows in parallel with the centre line (C), and together they form a zigzag pattern about the centre line (6) which intersects the depressions (8) of the eyelid perforations (6) in both rows. The orifices (5) are disposed in a first and a second pair of rows (9a, 9b, and 10a, 10b, respectively) with both rows in each pair positioned on either side of and spaced equally from the centre line (C). The upper box wall (3) has a shallow continuous arcuate shape across its entire width.
CA 2235836 1995-10-31 1996-10-09 Blowbox for use in a plant for drying a material web Expired - Fee Related CA2235836C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9503822-0 1995-10-31
SE9503822A SE505113E (en) 1995-10-31 1995-10-31 Blow box for use in a plant for drying a web of material
PCT/SE1996/001277 WO1997016594A1 (en) 1995-10-31 1996-10-09 Blowbox for use in a plant for drying a material web

Publications (2)

Publication Number Publication Date
CA2235836A1 true CA2235836A1 (en) 1997-05-09
CA2235836C CA2235836C (en) 2006-01-31

Family

ID=29405513

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2235836 Expired - Fee Related CA2235836C (en) 1995-10-31 1996-10-09 Blowbox for use in a plant for drying a material web

Country Status (1)

Country Link
CA (1) CA2235836C (en)

Also Published As

Publication number Publication date
CA2235836C (en) 2006-01-31

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MKLA Lapsed

Effective date: 20151009