US3503136A - Method and apparatus for the treatment of gas-permeable and/or liquid-permeable materials - Google Patents

Method and apparatus for the treatment of gas-permeable and/or liquid-permeable materials Download PDF

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Publication number
US3503136A
US3503136A US781503A US3503136DA US3503136A US 3503136 A US3503136 A US 3503136A US 781503 A US781503 A US 781503A US 3503136D A US3503136D A US 3503136DA US 3503136 A US3503136 A US 3503136A
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United States
Prior art keywords
drum
permeable
treatment
pressure
materials
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Expired - Lifetime
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US781503A
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English (en)
Inventor
Heinz Fleissner
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Vepa AG
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Vepa AG
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Publication date
Priority claimed from DE19671635357 external-priority patent/DE1635357A1/de
Application filed by Vepa AG filed Critical Vepa AG
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Publication of US3503136A publication Critical patent/US3503136A/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B19/00—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00
    • D06B19/0005—Fixing of chemicals, e.g. dyestuffs, on textile materials
    • D06B19/0047—Fixing of chemicals, e.g. dyestuffs, on textile materials by air steam
    • D06B19/0058—Fixing of chemicals, e.g. dyestuffs, on textile materials by air steam wherein suction is applied to one face of the textile material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S68/00—Textiles: fluid treating apparatus
    • Y10S68/903—Perforated drum and continuous textile feed and discharge

Definitions

  • the present disclosure is directed to a method and apparatus for the treatment of gas-permeable and/or liquidpermeable materials which comprises introducing the material to be treated to a treatment housing, conveying the material on the surface of a perforated conveying element through the treatment housing while penetrating said material with a circulating treatment medium, sensing the pressure on both sides of the material being treated, thereby determining the pressure differential between the inside and outside of the conveying element and accordingly varying the capacity for circulating the treatment medium depending on said pressure differential and the material being treated.
  • the present invention relates to a method and apparatus for the treatment of gas-permeable and/or liquid-permeable materials, particularly delicate textile materials, utilizing at least one perforated conveying means, for example a sieve drum means subjected at least partially to a suction draft or to an excess pressure.
  • the material to be treated is passed through the treatment chamber which contains a device for the circulation of the treatment medium.
  • Devices with sieve drums subjected to a suction draft are well known and are used for drying, steaming, heatsetting and thermosoling as well as for curing woven and knitted fabrics and non-Wovens.
  • washing devices with sieve drums subjected to a suction draft are well known.
  • the perforated drum jacket is frequently surrounded by a fine gauge wire mesh.
  • devices are known in which the perforated drum is first covered with a wide-meshed wire mesh and then with a fine-gauge wire mesh. By utilizingtwo wire meshes it is attempted to equalize the suction draft over the entire working width of the conveying means.
  • the devices should be versatile and equally suited for any material type and treatment process regardless of the varying requirements.
  • An object of the present invention is to avoid the prior art disadvantages in the treatment of gas-permeable and/ or liquid-permeable materials.
  • Another object of the present invention is to provide an improved process and apparatus for the treatment of gaspermeable and/or liquid-permeable materials wherein a variety of different materials of varying delicacy can be effectively treated in the same apparatus.
  • a further object of the present invention is to provide an improved process and apparatus for the treatment of gas-permeable and/or liquid-permeable materials wherein delicate materials, such as for example lining fabrics, can be effectively treated without marking the lining during drying.
  • Still another object of the present invention is to provide an improved process and apparatus for the treatment of gas-permeable and/or liquid-permeable materials wherein structural fabrics of texturized polyesters can be effectively treated without flattening the structure of the material as experienced in the prior art processes and apparatus.
  • Essential for the present invention is the knowledge that the prior art disadvantages are generally due to the result of the power of the suction draft utilized, that is the differential pressure between the drum interior and the space outside the drum. Thus, for example, if delicate materials are involved, better results can be obtained when using a weaker suction draft.
  • the partial vacuum and the conveying elements for example sieve drums, and/or the pressure difference between the drum interior and the space outside the drum varies at a constant fan speed.
  • this pressure difference may, for example, be in the range of about 30 to 40 mm. water column, whereas it may increase to about 60 to mm. water column if denser materials are handled which are only slightly permeable to air.
  • the pressure difference between the interior and exterior of the drum decreases gradually from drum to drum. Conditions may be reversed in a washing device.
  • the fabric may become continually less permeable to the liquid. Accordingly, the differential pressure to be overcome at the same pump speed increases.
  • each sieve drum a device which indicates and/ or measures the differential pressure between the drum interior and the space outside the sieve drum.
  • the fan speeds can then be adapted and changed to achieve the respective and/or the desired differential pressure.
  • the measuring unit In continuous operation, that is if the devices are used as part of a continuous process line, it is frequently more advantageous, according to the present invention, to couple the measuring unit with a control device for the fan drive or the pump drive, so that a predetermined differential pressure is kept constant regardless of the respective processing material and its permeability.
  • the differential pressure can be adapted to the respective optimum processing conditions.
  • the well known devices with sieve drums subjected to a suction draft have a stationary axis to which the battle which interrupts the suction draft at that drum portion which is not covered wtih the material being treated is fastened.
  • the stationary axis preferably up to the plane which substantially halves the working width of the drum and to connect one side of the differential pressure measuring unit, for example an U-tube filled with liquid, to this boring.
  • the other side of the measuring unit is connected to a pipe which is arranged outside the drum near the drum jacket and which preferably also extends up to the plane which substantially halves the working width of the drum.
  • a pipe is mounted to the stationary bored drum axis, preferably vertical to this axis, said pipe being connected With the boring of the drum axis and extending in close proximity to the drum jacket at the drum side which is covered with the material being treated. In this way, it is ensured that the differential pressure which is exerted directly on the processing material can be clearly determined.
  • the measurement of the differential pressure can be effected in the same way with a device with blower drums. In these devices an excess pressure prevails in the drum and a normal pressure outside the drum.
  • FIGURE 1 is a longitudinal section of the apparatus of the present invention
  • FIGURE 2 is a cross section of the apparatus of the present invention according to FIGURE 1;
  • FIGURE 3 is a measuring unit for determining the differential pressure existing between the inside and outside of the sieve drum means
  • FIGURE 4 shows a regulating device for automatically controlling the suction draft or positive pressure
  • FIGURE 5 illustrates a rotary manometer used for indicating the pressure differential between the inside and outside of the conveying means.
  • the apparatus of the present invention comprises a heat-insulated housing 1 which is subdivided by a partition 2 into a treatment chamber 3 with sieve drums 4 subjected to a suction draft and into a fan chamber 5 with fan wheels 6 which are correlated to the faces of the sieve drums 4.
  • the fan chamber also contains heater batteries.
  • perforated sheets 8 are arranged for equalizing the airflow.
  • a fan drive 9 is provided with an infinitely variable gear 10 which, in the embodiment of the present invention as shown, can be varied by means of a handwheel 11. However, in general it is more expedient to operate the gear from the control desk via a servomotor.
  • each sieve drum a stationary drum axis 12 is arranged which supports a baffle 13.
  • the drum axis 12 is bored and provided with a pipe 14 which is connected with a boring 15 of the drum axis.
  • another pipe 16 is arranged outside the sieve drums 4 at the sides which are covered with the material being treated.
  • the pipe 16 as Well as the bored drum axis 12 are connected with a U-tube 17 which is filled with liquid and which is arranged at the outer face wall of the housing 1.
  • the differential pres sure can be read from a dial 18 which is correlated to the U-tube.
  • a rotary manometer (pressure gauge) 29 or a similar indicating instrument may also be used.
  • the pressure difference is indicated on scale 18 by means of a pointer 30.
  • the infinitely variable gear 10 is connected with the intermediate connecting gear 33 and servomotor 32.
  • a line 31 connects the servomotor 32 with the potential generator 28, said generator being connected to a pressure gauge device 29. Accordingly, the measuring device as well as the indicator device are coupled with the control device for regulating the suction draft or positive pressure.
  • the drum drive is effected by means of a gear 20 via a hollow shaft 19.
  • a creel 21 At the inlet of the apparatus shown a creel 21, rollers 22 and a tensioning roller 23 are arranged. Behind the creel 21, material guides 25 are provided for a material 24 to be processed. In order to permit a tensionless feeding or an overfeeding of the material onto the sieve drums 4, a driven pair of rollers 26 is arranged at the inlet of the apparatus. At the discharge end of the apparatus a cooling drum 29 is provided. The alternate arrangement of the baffles 13 as shown permits the automatic threading of the material and its passage from drum to drum when the device is started up.
  • An apparatus for the treatment of gas-permeable and liquid-permeable materials which comprises a treatment housing, means for introducing the material to be treated to the treatment housing, at least one perforated conveying means rotatably disposed with said housing, circulating means provided with a drive means and as sociated with the conveying means for at least partially subjecting said conveying means to a suction draft or a positive pressure, means associated with said drive means for varying the speed of rotation of the circulating means, thereby varying the capacity for circulating the treatment medium, and means for removing the material being treated from the treatment housing.
  • measuring means communicates with a control unit for the drive of the circulating means for controlling the suction draft or the positive pressure, depending on the differential pressure measured between the inside and the outside of the conveying means.
  • gear means contains a handwheel for mechanically varying the capacity of the circulating means.
  • control unit is a servomotor.
  • An apparatus for the treatment of gas-permeable and liquid-permeable materials which comprises a treatment housing, inlet means for introducing the material to be treated to the treatment housing, at least one sieve drum means rotatably disposed within said housing about a drum axis, a portion of said drum axis being bored out and communicating with a first pipe means which senses the pressure on the inside of the sieve drum, second pipe means disposed in the treatment chamber on the outside of the sieve drum and near the material being conveyed thereon, said second pipe means communicating with the bored out portion of the drum axis, indicator means associated with said pipe means for measuring the differential pressure between the inside and outside of the sieve drum, circulating means containing a drive means and associated with the sieve drum means for at least partially subjecting it to a suction draft or a positive pressure, means associated with said drive means for varying the capacity for circulating the treatment medium, and outlet means for removing the material being treated from the treatment housing.
  • the first pipe means communicates with the bored out portion of the sieve drum axis at about the center of the sieve drum and extends substantially perpendicular to said axis, terminating near the inside surface of the sieve drum means.
  • the second pipe means extends into the treatment chamber to about the middle of the sieve drum means and substantially parallel to the outer surface of said sieve drum and in close proximity thereto.
  • the indicator means is a U-tube filled with a liquid, and the differential pressure is read from a dial which is associated with said U-tube.
  • the indicator means communicates with a control unit for the drive of the circulating means for controlling the suction draft or the positive pressure, depending on the differential pressure measured between the inside and outside of the sieve drum means.
  • gear means contains a handwheel for mechanically varying the capacity of the circulating means.
  • the inlet means is a creel containing a plurality of rollers including a tensioning roller.
  • a method for the treatment of gas-permeable or liquid-permeable materials which comprises introducing the material to be treated to a treatment housing, conveying the material on the surface of a perforated conveying element through the treatment housing while penetrating said material with a circulating treatment medium, sensing the pressure on both sides of the material being treated, thereby determining the pressure differential between the inside and outside of the conveying element, and varying the capacity for circulating the treatment medium depending on said pressure differential and the material being treated.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
US781503A 1967-12-06 1968-12-05 Method and apparatus for the treatment of gas-permeable and/or liquid-permeable materials Expired - Lifetime US3503136A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671635357 DE1635357A1 (de) 1967-12-06 1967-12-06 Vorrichtung zum Behandeln von gas- bzw. fluessigkeitsdurchlaessigen Guetern

Publications (1)

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US3503136A true US3503136A (en) 1970-03-31

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US781503A Expired - Lifetime US3503136A (en) 1967-12-06 1968-12-05 Method and apparatus for the treatment of gas-permeable and/or liquid-permeable materials

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US (1) US3503136A (xx)
BE (1) BE724953A (xx)
FR (1) FR1594149A (xx)
GB (1) GB1229644A (xx)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3600822A (en) * 1968-07-20 1971-08-24 Vepa Ag Apparatus for drying and steaming material conveyed on rolls or drums
US3925905A (en) * 1973-08-06 1975-12-16 Gaston County Dyeing Mach Piece goods extraction apparatus and method
US3955385A (en) * 1973-07-26 1976-05-11 Bruckner Apparatebau Gmbh Apparatus for treating textile webs
JPS51109580A (xx) * 1976-02-23 1976-09-28 Azuma Sangyo Co Ltd
US4449764A (en) * 1975-08-07 1984-05-22 Transaction Security, Inc. Data processing equipment enclosures
US4589712A (en) * 1977-08-25 1986-05-20 Hastings Otis Data processing equipment enclosures
US5588223A (en) * 1994-06-14 1996-12-31 Asea Brown Boveri Inc. Restrained paper dryer
US20040250444A1 (en) * 2003-06-13 2004-12-16 P.C.T. Systems, Inc. Method and apparatus for removing liquid from substrate surfaces using suction
US20050056392A1 (en) * 2003-09-12 2005-03-17 Anderson Dennis W. Apparatus and method for conditioning a web on a papermaking machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE484074C (de) * 1925-05-21 1929-10-12 Felten & Guilleaume Carlswerk Verfahren zur UEberwachung von Trockenvorgaengen
US2919496A (en) * 1951-03-13 1960-01-05 Fleissner & Sohn Sieve drum drying machine
US3081556A (en) * 1959-09-04 1963-03-19 Fleissner Gmbh Sieve drum driers
US3140157A (en) * 1959-03-26 1964-07-07 Fleissner Gmbh Fa Drying apparatus
US3303576A (en) * 1965-05-28 1967-02-14 Procter & Gamble Apparatus for drying porous paper

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE484074C (de) * 1925-05-21 1929-10-12 Felten & Guilleaume Carlswerk Verfahren zur UEberwachung von Trockenvorgaengen
US2919496A (en) * 1951-03-13 1960-01-05 Fleissner & Sohn Sieve drum drying machine
US3140157A (en) * 1959-03-26 1964-07-07 Fleissner Gmbh Fa Drying apparatus
US3081556A (en) * 1959-09-04 1963-03-19 Fleissner Gmbh Sieve drum driers
US3303576A (en) * 1965-05-28 1967-02-14 Procter & Gamble Apparatus for drying porous paper

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3600822A (en) * 1968-07-20 1971-08-24 Vepa Ag Apparatus for drying and steaming material conveyed on rolls or drums
US3955385A (en) * 1973-07-26 1976-05-11 Bruckner Apparatebau Gmbh Apparatus for treating textile webs
US3925905A (en) * 1973-08-06 1975-12-16 Gaston County Dyeing Mach Piece goods extraction apparatus and method
US4449764A (en) * 1975-08-07 1984-05-22 Transaction Security, Inc. Data processing equipment enclosures
JPS51109580A (xx) * 1976-02-23 1976-09-28 Azuma Sangyo Co Ltd
US4589712A (en) * 1977-08-25 1986-05-20 Hastings Otis Data processing equipment enclosures
US5588223A (en) * 1994-06-14 1996-12-31 Asea Brown Boveri Inc. Restrained paper dryer
US20040250444A1 (en) * 2003-06-13 2004-12-16 P.C.T. Systems, Inc. Method and apparatus for removing liquid from substrate surfaces using suction
WO2005001355A1 (en) * 2003-06-13 2005-01-06 P.C.T. Systems, Inc. Method and apparatus for removing liquid from substrate surfaces using suction
US6959503B2 (en) * 2003-06-13 2005-11-01 P.C.T. Systems, Inc. Method and apparatus for removing liquid from substrate surfaces using suction
US20060005421A1 (en) * 2003-06-13 2006-01-12 P.C.T. Systems, Inc. Method and apparatus for removing liquid from substrate surfaces using suction
US7415780B2 (en) 2003-06-13 2008-08-26 P.C.T. Systems, Inc. Method and apparatus for removing liquid from substrate surfaces using suction
US20050056392A1 (en) * 2003-09-12 2005-03-17 Anderson Dennis W. Apparatus and method for conditioning a web on a papermaking machine
US7125473B2 (en) 2003-09-12 2006-10-24 International Paper Company Apparatus and method for conditioning a web on a papermaking machine

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Publication number Publication date
FR1594149A (xx) 1970-06-01
BE724953A (xx) 1969-06-05
GB1229644A (xx) 1971-04-28

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