EP0707109B1 - Perfectionnements aux tamis d'épuration, notamment pour la pâte à papier - Google Patents
Perfectionnements aux tamis d'épuration, notamment pour la pâte à papier Download PDFInfo
- Publication number
- EP0707109B1 EP0707109B1 EP95402233A EP95402233A EP0707109B1 EP 0707109 B1 EP0707109 B1 EP 0707109B1 EP 95402233 A EP95402233 A EP 95402233A EP 95402233 A EP95402233 A EP 95402233A EP 0707109 B1 EP0707109 B1 EP 0707109B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sieve
- circles
- stack
- ring
- tie rods
- 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 - Lifetime
Links
Images
Classifications
-
- 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
- D21D5/16—Cylinders and plates for screens
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
Definitions
- the present invention relates to a sieve consisting of a stack of circular elements stacked on top of each other the others and held together by a plurality of tie rods parallel to the generatrices of the cylinder, in which each circular element is constituted by a U-shaped curved so as to form a circle.
- the U-shaped elements are fixed without have recourse, as was the case previously to the soldering or placing a jumper on the ends branches of the U.
- the tie rods are associated with two upper crowns and lower to form a cylindrical framework rigid on which the U-shaped circles are threaded; the pre-tensioning said circles being carried out by tightening on the stack of an additional crown.
- FIGS. 1 and 2 represent a sieve of known type, as described in patent No. 88.10863 of 08/12/1988.
- the U-profile thus prepared is then bent, which after which either we spirally wrap it or else cut it into pieces of the same length so that make circles that are stacked on top of each other other.
- the U-profile When the sieve must operate in centrifugal mode (i.e. when the material to be filtered is inserted inside the cylinder), the U-profile is arranged so that the two side walls of the U are facing outwards. In contrast, when the sieve must operate in centripetal regime (i.e. when the material to be filtered circulates outside to inside), the side walls of the U are turned inward.
- the profile is produced U-shaped circles of the same diameter. For that or else bend the U-section so as to obtain several windings, then cut sections which allow to form circles with the desired diameter; or else cut the U-shaped section into sections of the same length and we bend them to form a circle.
- crown 2 at the base of the stack and top another crown 3.
- tie rods 4 are threaded at their two ends of so as to be able to receive nuts 6 which allow tighten large enough for the circles be kept clear of each other others in operation.
- each tie 4 is screwed into the lower crown 2 and is fitted a nut 6 its upper part; but he is possible to put a nut 6 at each end, the two crowns 2 and 3 then being identical.
- This relative elasticity is a big advantage, but it has a disadvantage for large sieves diameters, i.e. for sieves whose diameter is greater than 1 meter.
- tie rods not to tighten the U against each other but to constitute, in cooperation with two crowns, a framework rigid cylindrical on which the U are threaded the one after the other.
- Elastic tightening with pre-tension U is then done by means of a crown additional, called tightening crown which is screwed precisely on said rigid frame.
- the framework rigid cylindrical is produced by bars 14 which are, by means of screws 15 fixed securely to a upper crown 10 and lower crown 12. So the two crowns 10-12 and the bars 14 form a kind of solid cage. To improve the rigidities of the assembly, the ends 14a and 14b of the bars 14 are fitted in housing correspondents in crowns 10 and 12.
- a crown 13 is then placed on the circle in a U which is the first of the stack and this crown 13 is tightened by a plurality of screws 17 on the upper crown 10.
- the lower face 13a of the crown 13 thus exerts a clamping pressure on stacking circles 11.
- shims 16 there is between the lower face 13a of the tightening ring 13 and the first circle 11 one or more shims 16.
- the shims 18 we can determine with precision the tightening stroke of the crown 13 on the crown 10 and therefore, given the thickness of the shims 16, the exact value of the pre-tension at which is subject to the stacking of the circles 11 in a U-shaped profile.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Combined Means For Separation Of Solids (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9412267 | 1994-10-14 | ||
FR9412267A FR2725737B1 (fr) | 1994-10-14 | 1994-10-14 | Perfectionnements aux tamis d'epuration, notamment pour la pate a papier |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0707109A1 EP0707109A1 (fr) | 1996-04-17 |
EP0707109B1 true EP0707109B1 (fr) | 1999-01-13 |
Family
ID=9467851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95402233A Expired - Lifetime EP0707109B1 (fr) | 1994-10-14 | 1995-10-06 | Perfectionnements aux tamis d'épuration, notamment pour la pâte à papier |
Country Status (13)
Country | Link |
---|---|
US (1) | US5697503A (fi) |
EP (1) | EP0707109B1 (fi) |
JP (1) | JPH08206600A (fi) |
KR (1) | KR100391996B1 (fi) |
AT (1) | ATE175739T1 (fi) |
BR (1) | BR9504352A (fi) |
CA (1) | CA2160222C (fi) |
DE (1) | DE69507243T2 (fi) |
ES (1) | ES2129781T3 (fi) |
FI (1) | FI110525B (fi) |
FR (1) | FR2725737B1 (fi) |
NO (1) | NO306567B1 (fi) |
TW (1) | TW305897B (fi) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101676048B (zh) * | 2008-09-19 | 2011-11-09 | 赵仁理 | 圆筒形自动铆接装置 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2794478B1 (fr) | 1999-06-04 | 2001-08-03 | Lamort E & M | Tamis cylindrique, notamment pour la pate a papier |
AU2003296064A1 (en) * | 2002-12-27 | 2004-07-29 | Tsukasa Industry Co., Ltd. | Circular-cylinder sieve |
CN101171390B (zh) | 2005-05-09 | 2011-04-13 | 纺织过滤材料股份有限公司 | 筛网筐及装配筛网筐的方法 |
CA2509966A1 (en) * | 2005-06-01 | 2006-12-01 | Accent Manufacturing, Inc. | Internally fed rotary screen manure separator |
CN101910509B (zh) | 2007-11-14 | 2012-08-08 | 纺织过滤材料股份有限公司 | 筛网篮 |
CN106391461A (zh) * | 2016-11-28 | 2017-02-15 | 新乡市振英机械设备有限公司 | 一种直线筛网地脚固定装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NZ182084A (en) * | 1976-09-17 | 1981-02-11 | Contra Shear Holdings | Rotating drum screen |
FR2635344A1 (fr) | 1988-08-12 | 1990-02-16 | Lamort E & M | Perfectionnements aux tamis pour epurateurs et classificateurs de pate a papier et procedes de realisation de tels tamis |
ES2035609T3 (es) * | 1988-08-12 | 1993-04-16 | E & M Lamort | Tamices para depurador y clasificador de pasta de papel. |
US4986900A (en) * | 1989-04-04 | 1991-01-22 | A. Ahlstrom Corporation | Sectional screen cylinder |
FR2676076B1 (fr) * | 1991-05-03 | 1993-08-06 | Lamort E & M | Couronne d'extremite de tamis cylindrique pour epurateur et classificateur de pate a papier et son procede de realisation. |
-
1994
- 1994-10-14 FR FR9412267A patent/FR2725737B1/fr not_active Expired - Fee Related
-
1995
- 1995-10-06 ES ES95402233T patent/ES2129781T3/es not_active Expired - Lifetime
- 1995-10-06 DE DE69507243T patent/DE69507243T2/de not_active Expired - Lifetime
- 1995-10-06 EP EP95402233A patent/EP0707109B1/fr not_active Expired - Lifetime
- 1995-10-06 AT AT95402233T patent/ATE175739T1/de not_active IP Right Cessation
- 1995-10-10 BR BR9504352A patent/BR9504352A/pt not_active IP Right Cessation
- 1995-10-10 CA CA002160222A patent/CA2160222C/fr not_active Expired - Fee Related
- 1995-10-11 NO NO954037A patent/NO306567B1/no not_active IP Right Cessation
- 1995-10-12 KR KR1019950035031A patent/KR100391996B1/ko not_active IP Right Cessation
- 1995-10-12 TW TW084110704A patent/TW305897B/zh not_active IP Right Cessation
- 1995-10-12 US US08/542,012 patent/US5697503A/en not_active Expired - Lifetime
- 1995-10-13 JP JP7290633A patent/JPH08206600A/ja active Pending
- 1995-10-13 FI FI954885A patent/FI110525B/fi active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101676048B (zh) * | 2008-09-19 | 2011-11-09 | 赵仁理 | 圆筒形自动铆接装置 |
Also Published As
Publication number | Publication date |
---|---|
CA2160222A1 (fr) | 1996-04-15 |
DE69507243T2 (de) | 1999-09-02 |
FR2725737A1 (fr) | 1996-04-19 |
ES2129781T3 (es) | 1999-06-16 |
NO954037L (no) | 1996-04-15 |
TW305897B (fi) | 1997-05-21 |
FI954885A (fi) | 1996-04-15 |
CA2160222C (fr) | 2006-09-12 |
DE69507243D1 (de) | 1999-02-25 |
NO306567B1 (no) | 1999-11-22 |
NO954037D0 (no) | 1995-10-11 |
JPH08206600A (ja) | 1996-08-13 |
ATE175739T1 (de) | 1999-01-15 |
FR2725737B1 (fr) | 1997-01-31 |
KR100391996B1 (ko) | 2003-11-13 |
EP0707109A1 (fr) | 1996-04-17 |
BR9504352A (pt) | 1997-09-02 |
KR960014532A (ko) | 1996-05-22 |
US5697503A (en) | 1997-12-16 |
FI954885A0 (fi) | 1995-10-13 |
FI110525B (fi) | 2003-02-14 |
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