US3910815A - Method and apparatus for papermachine felt cleaning - Google Patents

Method and apparatus for papermachine felt cleaning Download PDF

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Publication number
US3910815A
US3910815A US454958A US45495874A US3910815A US 3910815 A US3910815 A US 3910815A US 454958 A US454958 A US 454958A US 45495874 A US45495874 A US 45495874A US 3910815 A US3910815 A US 3910815A
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US
United States
Prior art keywords
felt
width
nozzle
traversing vehicle
jet
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
Application number
US454958A
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English (en)
Inventor
Clifford D Shelor
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.)
Westvaco Corp
Original Assignee
Westvaco Corp
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 Westvaco Corp filed Critical Westvaco Corp
Priority to US454958A priority Critical patent/US3910815A/en
Priority to CA221,285A priority patent/CA1010695A/en
Priority to DE2512922A priority patent/DE2512922C2/de
Priority to SE7503485A priority patent/SE407245B/xx
Priority to GB1251975A priority patent/GB1469047A/en
Priority to JP3738275A priority patent/JPS5523959B2/ja
Priority to FR7509528A priority patent/FR2265910B1/fr
Application granted granted Critical
Publication of US3910815A publication Critical patent/US3910815A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D21F1/32—Washing wire-cloths or felts

Definitions

  • the present invention relates to the maintenance of paper web carrying felts in a clean and operatively efficient condition.
  • the web mat is transferred to a tightly woven fabric belt characterized as a press felt.
  • a press felt One function of the press felt is to provide substrate support for the web as it is threaded through a plurality of roll press nips.
  • Another function of the press felt is as an intimate contact moisture wick to draw additional water from the web.
  • the press felt will accumulate minute particles of cellulose fiber to fill, coat or otherwise obstruct the porous quality of the felt.
  • Such coatings and fillings greatly inhibit the wicking function of the felt and streak the web carried thereon.
  • each jet stream will clean a hand area about the felt circumference. With a narrow, high velocity jet stream this is accomplished by repeatedly tracing diagonal lines of jet stream impact against the felt in both directions across the felt band. Although the felt speed and circumference is of consideration to the jet stream traversal velocity, there is no assurance of total felt surface cleaning aside from mathematical probabilities.
  • An objective of the present invention is to teach a method of cleaning a papermaking felt which assures total coverage of the felt area by hydraulic jets having high energy concentration.
  • Another objective of the present invention is to teach a method of cleaning papermaking felts which requires very little water input to the felt.
  • Another objective of the present invention is to disclose a simple and reliable apparatus for traversing the entire width of a papermaking felt with a cleaning shower.
  • Another objective of the present invention is to disclose a continuously operating high energy felt cleaning shower having a traversal rate strictly coordinated with the felt speed.
  • apparatus comprising one or a small number of closely clustered, high energy jet nozzles which are caused to traverse the felt width at an extremely low velocity relative to the felt speed and in strict coordination therewith.
  • the traversal rate of the cleaning nozzles is either electrically or mechanically paced to advance the noz' zles across the felt by a distance approximately equal to the impact area width of a high energy jet for each revolution of the felt. Accordingly, the entire felt area is systematically cleaned in a single traverse.
  • FIG. 1 is a web and felt threading schematic of a papermachine wet-press section.
  • FIG. 2 is an elevational view of the invention as seen from FIG, I cut lines Il-Il.
  • FIG. 3 is an end view of the traversing mechanism for the present invention as seen from FIG. 2 cut lines III- III.
  • FIG. 4 is a plan view of the traversing mechanism for the present invention as seen from FIG. 2 cut lines IVIV.
  • FIG. 5 shows the trace pattern of a single cleaning jet pursuant to the present invention as it traverses the width of a felt moving thereunder.
  • FIG. 6 is a graphic display of the operative efficiency of a press felt maintained pursuant to the present invention as compared to the prior art.
  • FIG. I DESCRIPTION OF THE PREFERRED EMBODIMENT
  • the web press section 20 of E papermachine is shown as located between the fourdrinier l0 and dryer section 30.
  • a loosely consolidatec web W of cellulose fiber is formed on the fourdriniei table 11 from an aqueous slurry of such fiber.
  • the web W is transferred to the first press section 21 and supported on a closed loop fabric belt F, characterized as a felt.
  • Felt F carries the web W through the nip of a first pair of press rolls 24 where a portion of the water remaining in the web is expressed therefrom by nip pressure and absorbed by the felt.
  • the web W may be passed through one or more additional pressing units such as 22 and 23 wherein the previous steps are repeated through press rolls 25 and 26.
  • each press roll unit of the press section 20 is provided with respective felts.
  • Each felt is provided with a cleaning shower C to dislodge accumulated fiber from the felt and suction box S to draw out absorbed water.
  • the present invention is directed to the felt cleaning shower C which is located ahead (relative to the direction of felt travel) of the suction box S. Further description will be directed to shower C,-, but is typical for showers C and C also.
  • FIG. 2 which represents a partially sectioned elevation of shower C there is shown an l-beam support member 27 which exceeds the width of felt F Preferably, the entire length of shower C is protected by a shroud 28.
  • a rail assembly 29 is longitudinally secured to the I-beam web for support of a traversing vehicle 40.
  • the traversing vehicle includes frame plates 41 having trolley wheels 42 secured thereto.
  • a pair of hanger straps 43 supporting a nozzle block 44.
  • One or more exchangeable nozzles are screwed into the block 44 to communicate with internal fluid conduits drilled therein.
  • piping conduits 46 and 47 are also secured to the block 44 for communication with said internal block conduits.
  • Flexible pipes 48 and 49 supply cleaning fluid to the vehicle carried conduits and nozzles from a high pressure (500 psi or greater) stationary source not shown.
  • flexible pipes 48 and 49 may be protected from entanglement and injury by routing them through a line of articulated armor rings 50.
  • the discharge jet characteristics should be such as to provide the smallest possible area of impact against the felt F so as to concentrate the hydraulic energy available therefrom.
  • the drive mechanism for the traversing vehicle 40 comprises a flexible belt 60 secured at opposite ends by clasps 61 to a frame plate 41.
  • the belt periphery is threaded over a plurality of sheaves 62, sheave 63 being a drive sheave.
  • the drive sheave 63 is driven by a suitable chain or belt drive mechanism 64 from a stepping motor 65.
  • stepping motor 65 is to rotate a power output spindle for a specified number of degrees in response to a power pulse.
  • pulse generator 66 Cooperative with stepping motor 65 is pulse generator 66 coupled, either mechanically or electrically, to one of the press rolls 26.
  • pulse generator 66 is to emit a specified number of electrical pulses for each revolution of the coupled press roll 26. Accordingly, the absolute time interim between generator pulses is directly related to the speed of felt F Cooperatively then, the speed of stepping motor 65 is also directly related to the speed of felt F;,.
  • a pulsing relay may be provided between generator 66 and motor 65 to proportionalize the number of motor 65 pulses to the number of operating nozzles. In other words, if it is desired to operate only one of four noules on block 44, motor 65 would respond to only one-quarter of the total number of pulses emitted by generator 66.
  • a timing switch 68 Also coupled to the traversing vehicle drive belt 60, by tension sheave 67, is a timing switch 68.
  • the collective nature of sheave 67 and switch 68 is to allow fluid flow into supply pipes 48 and 49 so long as the movement of belt rotatively drives sheave 67. Rotation of sheave 67 repeatedly starts timer 68. Should the belt stop, however, the timer 68 will receive no restart signal from sheave 67 and after a predetermined period of time, 9 seconds for example, will interrupt fluid flow to the supply piping 48 and 49. objectively, the felt is protected from jet damage in the event of some system failure.
  • stepping motor 65 drives the traversing vehicle 40 at some predetermined speed that is directly related to the felt speed.
  • FIG. 5 reference is made to the slightly overlapping circles 70,, 70 and 70 which represent the impact area of a fluid jet from nozzle 45a for successive revolutions of the felt F
  • Each impact area 70 70 and 70 has an effective cleaning width w. Accordingly, if only nozzle 45a is operative, the vehicle 40 is translated a distance w for each passage of a felt length L.
  • Felt length L is equivalent to the peripheral distance around the closed loop of felt F
  • FIG. 5 is a graphic trace of this compound movement as seen by cutting the felt for layout in a single plane.
  • FIG. 6 One operational advantage of the present invention over the prior art is comparatively illustrated by FIG. 6 wherein the percentage of felt interstice fill within a one foot wide band around the felt by fiber and other contaminants is plotted along the ordinate. Continuous operational hours are plotted along the abscissa.
  • the dash line curve represents the prior art technique of allowing the felt to fill over a 7 hour period before cleaning.
  • the present invention is represented by the continuous saw-tooth line wherein the same felt and band width is cleaned by a single nozzle shower operated continuously at a full felt width traversal period of one hour. It should be noted from FIG. 5 that the present invention need not be driven with a reciprocating cycle.
  • the speed range and drive direction flexibility of the stepping motor 65 permits a slow advance of the vehicle 40 across the web in one direction and a rapid return travel. By slowly traversing the felt in only one direction, it is assured that each increment of the belt is regularly cleaned at the optimum period.
  • the present invention sustains a uniformly high absorption capacity of the felt as compared to the practice heretofore of letting the fabric saturate before cleaning.
  • a typical prior art felt cleaning schedule would include 3, 30 minute shower operating periods staged at 8 hour intervals for a total of 90 shower minutes per 24 hour day. If each of 25 prior art shower nozzles discharged l 9% gallons of water per minute, the total 24 hour water usage would be 3,375 gallons.
  • said traversing vehicle includes a plurality of high energy jet nozzles, each nozzle spaced transversely across said felt 2 l 60 gal/day relative to an adjacent nozzle by a distance approximately equal to the width of an impact area of a jet from said nozzles against said felt, said traversing vehicle being advanced across said felt by a distance approximately equal to a summation of the plurality of said impact area widths for each peripheral revolution of said felt.
  • An apparatus for cleaning papennaking felts having planar width and closed loop length disposed for longitudinal movement about the periphery of a closed course over at least one felt carrying roll, the width of said felt disposed in a linear plane along a portion of said course, said apparatus comprising:
  • a support member disposed transversely across said closed course, parallel with said linear plane and spaced laterally therefrom;
  • High energy hydraulic nozzle means secured to said traversing vehicle and directed against the surface of said felt;
  • Means supplying high energy hydraulic fluid connected to said nozzle means for issuing a jet of said fluid therefrom against the surface of said felt to form an impact area therewith, said impact area having a width dimension measured substantially parallel with said felt width;
  • Traverse drive means responsive to said felt speed sensing means for driving said traversing vehicle along said support member at a rate approximately equal to said impact area width dimension for each peripherial revolution of said felt about said closed course.
  • said felt speed sensing means comprises electrical pulse emitting means, the emission of electrical pulses from said emitting means being proportional to the rotational velocity of said felt carrying roll.
  • said traverse drive means comprises operational monitoring means, said monitoring means causing a discontinuance of hydraulic fluid flow to said nozzle means if said traversing vehicle remains unmoved for a predetermined period of time.
  • An apparatus for cleaning papemiaking felts having planar width and closed loop length disposed for longitudinal movement about the periphery of a closed course over at least one felt carrying roll, the width of said felt disposed in a linear plane along a portion of said course said apparatus comprising:
  • a support member disposed transversely across said closed course. parallel with said linear plane and spaced laterally therefrom;
  • Traverse drive means responsive to said felt speed sensing means for driving said traversing vehicle along said support member at a rate approximately equal to said swath width dimension for each peripheral revolution of said felt about said closed course.
  • said traverse drive means comprises operational monitoring means, said monitoring means causing a discontinuance of fluid flow to said nozzle means if said traversing vehicle remains unmoved for a predetermined period of time.
  • Apparatus as described by claim 9 comprising first fluid connection means between said fluid supply means and one of said plurality of nozzle means and second fluid connection means between said fluid supply means and the remainder of said plurality of nozzle means.
  • said felt speed sensing means comprises electrical pulse emitting means, the emission of electrical pulses from said emitting means being proportional to the rotational velocity of said felt carrying roll.

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  • Paper (AREA)
  • Nonwoven Fabrics (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
US454958A 1974-03-26 1974-03-26 Method and apparatus for papermachine felt cleaning Expired - Lifetime US3910815A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US454958A US3910815A (en) 1974-03-26 1974-03-26 Method and apparatus for papermachine felt cleaning
CA221,285A CA1010695A (en) 1974-03-26 1975-03-04 Method and apparatus for papermachine felt cleaning
DE2512922A DE2512922C2 (de) 1974-03-26 1975-03-24 Vorrichtung zur Reinigung eines umlaufenden Filztuches
SE7503485A SE407245B (sv) 1974-03-26 1975-03-25 Sett och anordning for rengoring av pappersmaskinsfiltar
GB1251975A GB1469047A (en) 1974-03-26 1975-03-25 Papermachine felt cleaning
JP3738275A JPS5523959B2 (xx) 1974-03-26 1975-03-26
FR7509528A FR2265910B1 (xx) 1974-03-26 1975-03-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US454958A US3910815A (en) 1974-03-26 1974-03-26 Method and apparatus for papermachine felt cleaning

Publications (1)

Publication Number Publication Date
US3910815A true US3910815A (en) 1975-10-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
US454958A Expired - Lifetime US3910815A (en) 1974-03-26 1974-03-26 Method and apparatus for papermachine felt cleaning

Country Status (7)

Country Link
US (1) US3910815A (xx)
JP (1) JPS5523959B2 (xx)
CA (1) CA1010695A (xx)
DE (1) DE2512922C2 (xx)
FR (1) FR2265910B1 (xx)
GB (1) GB1469047A (xx)
SE (1) SE407245B (xx)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2739681A1 (de) * 1976-09-03 1978-03-09 Huyck Corp Umlaufendes endlosband sowie vorrichtung zu seiner reinigung
WO1985001531A1 (en) * 1983-09-30 1985-04-11 Toeyrae Stig Device for flushing endless wires etc.
US4539827A (en) * 1983-03-11 1985-09-10 Westvaco Corporation Belt washing improvements
US4584058A (en) * 1983-05-20 1986-04-22 Valmet Oy Method and apparatus for dewatering a fibrous web
US4608122A (en) * 1983-03-11 1986-08-26 Westvaco Corporation Method for washing a paper fiber on a belt washer using a sonic frequency disturbance
US4619551A (en) * 1984-03-27 1986-10-28 Atlas Copco Aktiebolag Device for removing degraded concrete
US4640644A (en) * 1984-04-16 1987-02-03 Indescor Hydrodynamics Inc. Method and apparatus for removal of surface material
US4701242A (en) * 1985-04-12 1987-10-20 Albany International Corp. Mechanism for moving a shower nozzle in a paper making machine
US4753712A (en) * 1987-06-05 1988-06-28 Westvaco Corporation Papermachine felt shower oscillator
US4788732A (en) * 1985-02-01 1988-12-06 Ulrich Kollmar Cleaning device for an endless web and method of cleaning
US4854770A (en) * 1984-04-16 1989-08-08 Indescor Hydrodynamics Inc. Method and apparatus for removal of surface material
US4995944A (en) * 1988-09-16 1991-02-26 Dearborn Chemical Company Ltd. Controlling deposits on paper machine felts using cationic polymer and cationic surfactant mixture
US5223097A (en) * 1986-01-09 1993-06-29 W. R. Grace Ab Method for controlling pitch on a paper-making machine
US5595632A (en) * 1994-02-01 1997-01-21 James Ross Limited Shower for paper making machine
US5626720A (en) * 1986-01-09 1997-05-06 W.R. Grace & Co.-Conn. Method for controlling pitch on a papermaking machine
US5651812A (en) * 1994-11-22 1997-07-29 Betzdearborn Inc. Agent for treatment of paper machine press section felts and its use
US5802648A (en) * 1995-07-06 1998-09-08 Thermo Fibertek Inc. Apparatus and method of fabric cleaning
US5863386A (en) * 1995-06-29 1999-01-26 Valmet Corporation Method and device for washing the drying wire in a paper or board machine
WO1999050499A1 (en) * 1998-03-31 1999-10-07 Valmet Corporation Method and apparatus for drying a fiber web
US6364959B1 (en) * 1998-05-16 2002-04-02 Voith Sulzer Papiertechnik Patent Gmbh Process for cleaning a transport belt
US6468397B1 (en) * 1999-12-20 2002-10-22 Kimberly-Clark Worldwide, Inc. Scarfing shower for fabric cleaning in a wet papermaking process
US20070151690A1 (en) * 2005-12-30 2007-07-05 Machattie Ross K Cross-machine direction actuators for machine clothing
CN103977980A (zh) * 2014-06-04 2014-08-13 浙江德清宝丰射流系统工程有限公司 用于高压水清洗生产线的往复清洗机构
CN114210449A (zh) * 2021-11-18 2022-03-22 安徽铜冠池州资源有限公司 一种毛毡吸附选矿机

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ194626A (en) * 1979-08-16 1984-11-09 Albany Int Corp Maintaining permeability of paper machine felts
JPS56165090A (en) * 1980-05-16 1981-12-18 Sanyou Hibiya Kk Apparatus for washing dryer canvas of papermaking machine
FR2680987B3 (fr) * 1991-09-05 1993-07-09 Perfojet Sa Procede pour nettoyer et reconditionner les feutres de papeterie, et feutres traites de la sorte.
JP6317639B2 (ja) * 2014-07-18 2018-04-25 三菱製紙株式会社 電気化学素子用セパレータの製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1459161A (en) * 1919-11-17 1923-06-19 Roberts Mfg Co Cleaning device for paper-making machines
US1859508A (en) * 1930-05-14 1932-05-24 John L Harris Hydraulic felt conditioner or the like
US2273126A (en) * 1939-08-10 1942-02-17 Brown Instr Co Control system
US3135653A (en) * 1961-11-03 1964-06-02 Sandy Hill Iron & Brass Works Felt conditioner
US3739605A (en) * 1971-12-30 1973-06-19 Bird Machine Co Cleaning apparatus for materials moving in endless path

Family Cites Families (13)

* Cited by examiner, † Cited by third party
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DE117874C (xx) *
CA665506A (en) * 1963-06-25 Mcgraw-Edison (Canada) Limited Traveling shower for couch roll
US1659010A (en) * 1925-07-13 1928-02-14 Vickery Ltd Felt-cleaning machine
US1678978A (en) * 1925-08-11 1928-07-31 New Nap System Inc Apparatus for reconditioning felts of paper-making machines
US1791384A (en) * 1925-09-14 1931-02-03 Black Clawson Co Paper-making machinery
US1719969A (en) * 1928-01-19 1929-07-09 Dupuis Conrade Hector Screen-cleaning device for paper-making machines
US1888575A (en) * 1928-07-06 1932-11-22 Gilbert J Scofield Cleansing apparatus
US1853064A (en) * 1929-04-04 1932-04-12 Eugene H Lansing Felt cleaning apparatus
US2308574A (en) * 1936-07-23 1943-01-19 Vickery Inc Felt conditioning device for papermaking machines
DE804062C (de) * 1941-08-20 1951-04-16 Thomas Salvadore Jordan Verfahren und Vorrichtung zur Reinigung von Papiermaschinen-Filzbahnen
US2478059A (en) * 1945-06-22 1949-08-02 Gilbert J Scofield Interchangeable gearing
DE1141525B (de) * 1960-02-10 1962-12-20 Doerries A G O Vorrichtung zum Reinigen der Filze von Papier-, Karton- oder dergleichen Maschinen
US3135635A (en) * 1961-05-01 1964-06-02 Commercial Solvents Corp Explosive composition comprising ammonium nitrate and a mixture of higher boron hydrides

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1459161A (en) * 1919-11-17 1923-06-19 Roberts Mfg Co Cleaning device for paper-making machines
US1859508A (en) * 1930-05-14 1932-05-24 John L Harris Hydraulic felt conditioner or the like
US2273126A (en) * 1939-08-10 1942-02-17 Brown Instr Co Control system
US3135653A (en) * 1961-11-03 1964-06-02 Sandy Hill Iron & Brass Works Felt conditioner
US3739605A (en) * 1971-12-30 1973-06-19 Bird Machine Co Cleaning apparatus for materials moving in endless path

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2739681A1 (de) * 1976-09-03 1978-03-09 Huyck Corp Umlaufendes endlosband sowie vorrichtung zu seiner reinigung
US4087320A (en) * 1976-09-03 1978-05-02 Huyck Corporation Apparatus for cleaning an endless belt having an affixed signal element
US4539827A (en) * 1983-03-11 1985-09-10 Westvaco Corporation Belt washing improvements
US4608122A (en) * 1983-03-11 1986-08-26 Westvaco Corporation Method for washing a paper fiber on a belt washer using a sonic frequency disturbance
US4584058A (en) * 1983-05-20 1986-04-22 Valmet Oy Method and apparatus for dewatering a fibrous web
WO1985001531A1 (en) * 1983-09-30 1985-04-11 Toeyrae Stig Device for flushing endless wires etc.
US4619551A (en) * 1984-03-27 1986-10-28 Atlas Copco Aktiebolag Device for removing degraded concrete
US4640644A (en) * 1984-04-16 1987-02-03 Indescor Hydrodynamics Inc. Method and apparatus for removal of surface material
US4854770A (en) * 1984-04-16 1989-08-08 Indescor Hydrodynamics Inc. Method and apparatus for removal of surface material
US4788732A (en) * 1985-02-01 1988-12-06 Ulrich Kollmar Cleaning device for an endless web and method of cleaning
US4701242A (en) * 1985-04-12 1987-10-20 Albany International Corp. Mechanism for moving a shower nozzle in a paper making machine
US5223097A (en) * 1986-01-09 1993-06-29 W. R. Grace Ab Method for controlling pitch on a paper-making machine
US5626720A (en) * 1986-01-09 1997-05-06 W.R. Grace & Co.-Conn. Method for controlling pitch on a papermaking machine
US4753712A (en) * 1987-06-05 1988-06-28 Westvaco Corporation Papermachine felt shower oscillator
US4995944A (en) * 1988-09-16 1991-02-26 Dearborn Chemical Company Ltd. Controlling deposits on paper machine felts using cationic polymer and cationic surfactant mixture
US5595632A (en) * 1994-02-01 1997-01-21 James Ross Limited Shower for paper making machine
US5651812A (en) * 1994-11-22 1997-07-29 Betzdearborn Inc. Agent for treatment of paper machine press section felts and its use
US5776310A (en) * 1994-11-22 1998-07-07 Betzdearborn Inc. Method for treatment of paper machine press section felts
US5863386A (en) * 1995-06-29 1999-01-26 Valmet Corporation Method and device for washing the drying wire in a paper or board machine
US5802648A (en) * 1995-07-06 1998-09-08 Thermo Fibertek Inc. Apparatus and method of fabric cleaning
WO1999050499A1 (en) * 1998-03-31 1999-10-07 Valmet Corporation Method and apparatus for drying a fiber web
US6345453B1 (en) 1998-03-31 2002-02-12 Metso Paper, Inc. Method and apparatus for drying a fiber web
US6364959B1 (en) * 1998-05-16 2002-04-02 Voith Sulzer Papiertechnik Patent Gmbh Process for cleaning a transport belt
US6468397B1 (en) * 1999-12-20 2002-10-22 Kimberly-Clark Worldwide, Inc. Scarfing shower for fabric cleaning in a wet papermaking process
US20070151690A1 (en) * 2005-12-30 2007-07-05 Machattie Ross K Cross-machine direction actuators for machine clothing
US7811417B2 (en) * 2005-12-30 2010-10-12 Honeywell Asca, Inc. Cross-machine direction actuators for machine clothing
CN103977980A (zh) * 2014-06-04 2014-08-13 浙江德清宝丰射流系统工程有限公司 用于高压水清洗生产线的往复清洗机构
CN103977980B (zh) * 2014-06-04 2016-08-24 浙江德清宝丰射流系统工程有限公司 用于高压水清洗生产线的往复清洗机构
CN114210449A (zh) * 2021-11-18 2022-03-22 安徽铜冠池州资源有限公司 一种毛毡吸附选矿机

Also Published As

Publication number Publication date
JPS5523959B2 (xx) 1980-06-26
DE2512922C2 (de) 1983-07-07
FR2265910A1 (xx) 1975-10-24
CA1010695A (en) 1977-05-24
FR2265910B1 (xx) 1980-11-07
SE7503485L (xx) 1975-09-29
DE2512922A1 (de) 1975-10-09
JPS50132206A (xx) 1975-10-20
GB1469047A (en) 1977-03-30
SE407245B (sv) 1979-03-19

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