EP0372444A1 - Process for the emission-free drying of textile webs or the like - Google Patents

Process for the emission-free drying of textile webs or the like Download PDF

Info

Publication number
EP0372444A1
EP0372444A1 EP89122301A EP89122301A EP0372444A1 EP 0372444 A1 EP0372444 A1 EP 0372444A1 EP 89122301 A EP89122301 A EP 89122301A EP 89122301 A EP89122301 A EP 89122301A EP 0372444 A1 EP0372444 A1 EP 0372444A1
Authority
EP
European Patent Office
Prior art keywords
webs
treatment
dryer housing
steam
treatment agent
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.)
Withdrawn
Application number
EP89122301A
Other languages
German (de)
French (fr)
Inventor
Jürgen Dipl.-Ing. Brauns
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.)
Babcock Textilmaschinen GmbH
Original Assignee
Babcock Textilmaschinen GmbH
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 Babcock Textilmaschinen GmbH filed Critical Babcock Textilmaschinen GmbH
Publication of EP0372444A1 publication Critical patent/EP0372444A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/005—Treatment of dryer exhaust gases
    • F26B25/006—Separating volatiles, e.g. recovering solvents from dryer exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/005—Seals, locks, e.g. gas barriers for web drying enclosures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/02—Heating arrangements using combustion heating
    • F26B23/022—Heating arrangements using combustion heating incinerating volatiles in the dryer exhaust gases, the produced hot gases being wholly, partly or not recycled into the drying enclosure

Definitions

  • the invention relates to a method for low-emission treatment, in particular drying of running webs of material such as textile webs or the like, and a device for carrying out this method.
  • the moisture present on the goods and the volatile impurities are evaporated and mixed into the steam atmosphere.
  • Part of this contaminated atmosphere is constantly removed from the dryer and condensed. If necessary, the condensation process can be preceded by a compression process.
  • the contaminants are deposited with the condensate and can be removed in this state using methods known per se without getting into the surrounding atmosphere.
  • the condensation process can, for example, be combined with a post-combustion process for these contaminants. Due to the small volume of these volatile substances, the afterburning system can in this case turn out to be orders of magnitude smaller than the combustion systems for air dryers and accordingly requires lower investment and above all operating costs.
  • the required freedom from air should be achieved from the start by steam filling the treatment room.
  • a device for performing this method can be carried out in such a way that a largely or completely gas or steam-tight dryer housing is designed as a steam bell, in which the entry and exit of the webs from the bottom of the lower part of the housing arranged inlet and Outlet openings occur and that on the dryer housing a discharge connected to a heat exchange device is provided for the steam vapors generated during the drying process. It is expedient to arrange seals at the entry and exit of the webs into and out of the dryer housing, which in a preferred embodiment of a device according to the invention device should be designed as locks connected to suction devices.
  • a dryer which works according to the method according to the invention can have a larger content of goods compared to air dryers for the same dryer performance.
  • the slightly higher investment costs can be more than compensated for by the elimination of the known complex post-combustion systems in air dryers.
  • the webs can be guided in the dryer housing between the inlet and outlet in several passages one above the other or next to one another.
  • the drawing shows a dryer designed as a multi-level frame 18, through the treatment room of which the web 13 is guided for treatment by means of vertical chains (not shown) in a known manner.
  • the dryer housing 10 is, as it were, bell-shaped, ie with the inlet and outlet openings for the web at the bottom of the housing.
  • the treatment room can be largely from air, the even could be brought in with the web, keep it clear, as it is heavier than the steam used for drying and would collect in the bottom of the dryer, from where it could then be removed from the dryer.
  • a portion of the vapor atmosphere provided with contaminants evaporated from the web during drying is continuously led out of the dryer housing 10 through a line 15 and condensed in a heat exchanger 14.
  • the contaminants are deposited with the condensate and can be collected in a collecting container 20, from which they are then disposed of using known methods can without getting into the surrounding atmosphere.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

It is proposed firstly to subject the webs (13) of material to a treatment in a superheated vapour atmosphere at normal atmospheric pressure with the circulated treatment agent being blown onto the webs (13) of material, to separate a part of the treatment agent from the treatment continuously and to subject it to a condensation operation and thus to separate and collect evaporated moisture from the webs of material as well as volatile constituents originating from impurities brought in with the webs of material and finally to dispose of them in a manner known per se. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren zum emissionsarmen Behandeln, insbes. Trocknen von laufenden Warenbahnen wie Textilbahnen oder dergl., sowie eine Vorrichtung zur Durch­führung dieses Verfahrens.The invention relates to a method for low-emission treatment, in particular drying of running webs of material such as textile webs or the like, and a device for carrying out this method.

Durch die zunehmende Einschränkung der zulässigen Emissi­onswerte für mit Luft betriebene Trockner für Textilien oder dergl., insbesondere in den Industrieländern, werden in Zukunft die Aufwendungen für die Abluftreinigung stark zunehmen. Es werden jetzt schon für diese Zwecke neben Luftwaschvorrichtungen und Filtern besondere Verbrennungsan­lagen verwendet, in denen die mit der Abluft aus den Trock­nern abgeführten Verunreinigungen durch Verbrennung redu­ziert werden sollen.Due to the increasing restriction of the permissible emission values for air-operated dryers for textiles or the like, especially in the industrialized countries, the expenses for exhaust air purification will increase significantly in the future. In addition to air washing devices and filters, special combustion systems are already used for this purpose, in which the contaminants discharged with the exhaust air from the dryers are to be reduced by combustion.

Die Praxis hat nun gezeigt, daß es bei diesen mit hohem Investitions- und Betriebsaufwand verbundenen Anlagen nur zum Teil gelingt, den für die Abluftverbrennung erforder­lichen zusätzlichen Energieaufwand über Wärmerückgewinnung in den Trocknungsprozeß zurückzuführen, womit bezogen auf gleiche Trocknungsleistung der Energieaufwand nicht uner­heblich vergrößert wird.Practice has now shown that with these systems, which are associated with high investment and operating costs, it is only possible in part to return the additional energy expenditure required for the exhaust air combustion via heat recovery to the drying process, which means that the energy expenditure is increased considerably in relation to the same drying capacity.

Durch die vorliegende Erfindung sollen nun diese Mängel bekannter Trocknungsanlagen vermieden und die Aufgabe gelöst werden, mit einfachen Mitteln aufwendige Investionen für Anlage und Betrieb von Abluftreinigungsanlagen von Trocknern ganz zu vermeiden.By means of the present invention, these deficiencies of known drying systems are to be avoided and the object is to be achieved, using simple means, complex investments for the installation and operation of exhaust air purification systems Avoid drying completely.

Zur Lösung dieser Aufgabe wird erfindungsgemäß bei einem Verfahren der eingangs genannten Art vorgeschlagen, die Warenbahnen zunächst einer Behandlung in überhitzter Dampf­atmosphäre bei normalem atmosphärischen Druck mit Aufblasen des im Kreislauf geführten Behandlungsmittels auf die Warenbah­nen zu unterwerfen, einen Teil des Behandlungsmittels ständig aus der Behandlung abzuführen und einem Kondensationsvorgang zu unterwerfen und damit verdampfte Feuchtigkeit aus den Warenbahnen, sowie flüchtige, aus mit den Warenbahnen einge­brachten Verunreinigungen stammende Bestandteile abzuführen, zu sammeln und schließlich in an sich bekannter Weise zu entsorgen.To achieve this object, according to the invention it is proposed in a method of the type mentioned at the outset to subject the material webs to a treatment in a superheated steam atmosphere at normal atmospheric pressure with inflation of the treatment agent circulated onto the material webs, to continuously remove part of the treatment agent from the treatment and subject to a condensation process and thus evaporated moisture from the material webs, as well as to remove volatile components originating from impurities introduced with the material webs, to collect them and finally to dispose of them in a manner known per se.

Bei diesem Verfahren werden die auf der Ware vorhandene Feuchtigkeit sowie die flüchtigen Verunreinigungen also verdunstet und der Dampfatmosphäre beigemischt. Ein Teil dieser mit Verunreinigungen versehenen Atmosphäre wird ständig aus dem Trockner herausgeführt und kondensiert. Falls erforderlich kann dem Kondensationsvorgang auch noch ein Verdichtungsvorgang vorgeschaltet werden. Die Verunrei­nigungen schlagen sich mit dem Kondensat nieder und können mit an sich bekannten Methoden in diesem Zustand entfernt werden, ohne in die umgebende Atmosphäre zu gelangen.In this process, the moisture present on the goods and the volatile impurities are evaporated and mixed into the steam atmosphere. Part of this contaminated atmosphere is constantly removed from the dryer and condensed. If necessary, the condensation process can be preceded by a compression process. The contaminants are deposited with the condensate and can be removed in this state using methods known per se without getting into the surrounding atmosphere.

Sollten sich aus konstruktiven Gründen oder durch mit den Warenbahnen eingeschleppte Luftreste geringe Beimengungen von Luft zur Dampfatmosphäre nicht vermeiden lassen und sollten bei der Kondensation der verdampften Feuchtigkeit noch Verunreinigungen in flüchtiger Form anfallen, so kann der Kondensationsvorgang beispielsweise noch mit einem Nachverbrennungsvorgang für diese Verunreinigungen verbun­den werden. Durch das dabei nur geringe Volumen dieser flüchtigen Stoffe, kann dann die Nachverbrennungsanlage in diesem Fall um Größenordnungen kleiner ausfallen als die Verbrennungsanlagen bei Lufttrocknern und benötigt dement­sprechend geringere Investitions- und vor allem Betriebs­ko sten.If, for constructional reasons or due to air residues carried in with the material web, small additions of air to the steam atmosphere cannot be avoided and if the evaporated moisture condenses, impurities may also occur in a volatile form the condensation process can, for example, be combined with a post-combustion process for these contaminants. Due to the small volume of these volatile substances, the afterburning system can in this case turn out to be orders of magnitude smaller than the combustion systems for air dryers and accordingly requires lower investment and above all operating costs.

Um gleich beim Beginn des Trocknungsvorganges voll im Sinne der Erfindung arbeiten zu können, soll nach einem weiteren Merkmal der Erfindung die erforderliche Luftfreiheit von Anbeginn an durch eine Dampfbefüllung des Behandlungs­raumes erreicht werden.In order to be able to work fully within the meaning of the invention right at the start of the drying process, according to a further feature of the invention the required freedom from air should be achieved from the start by steam filling the treatment room.

Eine Vorrichtung zur Durchführung dieses Verfahrens kann in der Weise ausgeführt werden, daß ein weitgehend oder völlig gas- bzw. dampfdicht ausgeführtes Trocknergehäuse als Dampfglocke ausgebildet ist, bei der der Ein- und Austritt der Warenbahnen von unten am unteren Teil des Gehäuses angeordnete Ein- und Austrittsöffnungen erfolgt und daß am Trocknergehäuse eine mit einer Wärmetauschvorrichtung verbundene Abführung für die beim Trocknungsvorgang ent­stehenden Dampfschwaden vorgesehen ist. Dabei ist es zweck­mäßig, am Ein- und Austritt der Warenbahnen in das und aus dem Trocknergehäuse Abdichtungen anzuordnen, die bei einer bevorzugten Ausführungsform einer erfindungsgemäßen Vorrich­ tung als mit Absaugevorrichtungen verbundene Schleusen ausgeführt sein sollen.A device for performing this method can be carried out in such a way that a largely or completely gas or steam-tight dryer housing is designed as a steam bell, in which the entry and exit of the webs from the bottom of the lower part of the housing arranged inlet and Outlet openings occur and that on the dryer housing a discharge connected to a heat exchange device is provided for the steam vapors generated during the drying process. It is expedient to arrange seals at the entry and exit of the webs into and out of the dryer housing, which in a preferred embodiment of a device according to the invention device should be designed as locks connected to suction devices.

Da der spezifische Wärmeübergang in einer Dampfatmosphäre niedriger liegen kann als bei Lufttrocknern, kann ein Trockner, der nach dem erfindungsgemäßen Verfahren arbeitet, für gleiche Trocknerleistung einen gegenüber Lufttrocknern größeren Wareninhalt aufweisen. Die dadurch geringfügig höheren Investi­tionskosten, können durch den Fortfall der bekannten aufwen­digen Nachverbrennungsanlagen bei Lufttrocknern dadurch mehr als ausgeglichen werden. Um das Bauvolumen weiter zu verrin­gern,kann die Führung der Warenbahnen im Trocknergehäuse zwischen dem Ein- und dem Austritt in mehreren Passagen über- oder auch nebeneinander erfolgen.Since the specific heat transfer in a steam atmosphere can be lower than in air dryers, a dryer which works according to the method according to the invention can have a larger content of goods compared to air dryers for the same dryer performance. The slightly higher investment costs can be more than compensated for by the elimination of the known complex post-combustion systems in air dryers. In order to further reduce the construction volume, the webs can be guided in the dryer housing between the inlet and outlet in several passages one above the other or next to one another.

An Hand des auf der beiliegenden Zeichnung schematisch dargestellten Ausführungsbeispieles für eine erfindungsgemäße Vorrichtung soll die Erfindung nachfolgend noch weiter erläutert werden.The invention will be explained in more detail below on the basis of the exemplary embodiment for a device according to the invention, which is shown schematically in the accompanying drawing.

Die Zeichnung zeigt einen als Mehretagenrahmen 18 ausge­bildeten Trockner, durch dessen Behandlungsraum die Waren­bahn 13 mittels nicht dargestellter Vertikalketten in bekannter Weise zur Behandlung hindurchgeführt wird. Man erkennt, daß das Trocknergehäuse 10 gleichsam glockenartig, d.h. mit den Ein- und Austrittsöffnungen für die Warenbahn unten am Gehäuse, ausgebildet ist. Auf diese Weise läßt sich der Behandlungsraum weitestgehend von Luft, die even­ tuell mit der Warenbahn eingeschleppt werden könnte, frei halten, da diese schwerer ist als der für die Trocknung verwendete Dampf und sich unten im Trockner ansammeln würde, von wo sie dann aus dem Trockner abgeführt werden könnte.The drawing shows a dryer designed as a multi-level frame 18, through the treatment room of which the web 13 is guided for treatment by means of vertical chains (not shown) in a known manner. It can be seen that the dryer housing 10 is, as it were, bell-shaped, ie with the inlet and outlet openings for the web at the bottom of the housing. In this way, the treatment room can be largely from air, the even could be brought in with the web, keep it clear, as it is heavier than the steam used for drying and would collect in the bottom of the dryer, from where it could then be removed from the dryer.

Um das Einschleppen oder Eindringen von Luft in das Trock­nergehäuse möglichst ganz zu verhindern, befinden sich am Ein- und Austritt der Warenbahn in das und aus dem Trock­nergehäuse außer Dichtungen 16 noch mit einer Absaugung verbundene Schleusen 17.In order to prevent the introduction or entry of air into the dryer housing as completely as possible, there are locks 17 connected to a suction device at the entry and exit of the material web into and out of the dryer housing in addition to seals 16.

Die Führung des zur Trocknung verwendeten überhitzten Dampfes ist in der Zeichnung durch Pfeile angedeutet. Nach der Behandlung, bei der der Dampf in bekannter Weise mittels in Düsenkörpern angeordneten Düsen auf die Warenbahn 13 aufgeblasen wird, wird der Dampf aus der Behandlung abge­führt über Heizregister 19 geleitet und dann erneut auf die Warenbahn aufgeblasen.The guidance of the superheated steam used for drying is indicated in the drawing by arrows. After the treatment, in which the steam is blown onto the web 13 in a known manner by means of nozzles arranged in nozzle bodies, the steam is removed from the treatment, passed through heating register 19 and then blown again onto the web.

Ein Teil der mit aus der Warenbahn bei der Trocknung aus­gedampften Verunreinigungen versehenen Dampfatmosphäre wird durch ein Leitung 15 ständig aus dem Trocknergehäuse 10 herausgeführt und in einem Wärmetauscher 14 kondensiert. Die Verunreinigungen schlagen sich mit dem Kondensat nieder und können in einem Auffangbehälter 20 gesammelt werden, aus dem sie dann mit bekannten Methoden entsorgt werden können, ohne in die umgebende Atmosphäre zu gelangen.A portion of the vapor atmosphere provided with contaminants evaporated from the web during drying is continuously led out of the dryer housing 10 through a line 15 and condensed in a heat exchanger 14. The contaminants are deposited with the condensate and can be collected in a collecting container 20, from which they are then disposed of using known methods can without getting into the surrounding atmosphere.

Claims (8)

1. Verfahren zum emissionsarmen Behandeln, insbes. Trocknen von laufenden Warenbahnen wie Textilbahnen oder dergl., dadurch gekennzeichent, daß die Warenbahnen einer Behand­lung in überhitzter Dampfatmosphäre bei normalem atmos­phärischen Druck mit Aufblasen des im Kreislauf geführten Behandlungsmittels auf die Warenbahnen unterworfen werden, daß ein Teil des Behandlungsmittels ständig aus der Behandlung abgeführt und einem Kondensationsvorgang unterworfen wird und damit verdampfte Feuchtigkeit aus den Warenbahnen, sowie flüchtige, aus mit den Warenbahnen eingebrachten Verunreinigungen stammende Bestandteile abgeführt, gesammelt und schließlich in an sich bekannter Weise entsorgt werden.1. A method for low-emission treatment, esp. Drying of running webs such as textile webs or the like, characterized in that the webs are subjected to a treatment in a superheated steam atmosphere at normal atmospheric pressure with inflation of the treatment agent circulated on the webs, that part the treatment agent is continuously removed from the treatment and subjected to a condensation process and thus evaporated moisture is removed from the material webs and volatile constituents originating from the material webs are removed, collected and finally disposed of in a manner known per se. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß dem Kondensationsvorgang ein Verdichtungsvorgang für das abgeführte Behandlungsmittel mit den Verunreinigungen vorgeschaltet ist.2. The method according to claim 1, characterized in that the condensation process is preceded by a compression process for the removed treatment agent with the impurities. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Kondensationsvorgang mit einem Nachverbrennungs­vorgang für aus der Behandlung mit nichtkondensierbaren Behandlungsmittelanteilen abgeführte Verunreinigungen verbunden ist.3. The method according to claim 1 or 2, characterized in that the condensation process is associated with a post-combustion process for contaminants discharged from the treatment with non-condensable treatment agent portions. 4. Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß bei Beginn der Behandlung in den Behandlungsraum für die Warenbahnen eine Befüllung mit Dampf eingebracht wird.4. The method according to claim 1 to 3, characterized in that a filling with steam is introduced at the beginning of the treatment in the treatment room for the webs. 5. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß ein weitgehend oder völlig gas- bzw. dampfdicht ausgeführtes Trocknergehäuse (10) als Dampfglocke ausgebildet ist, bei der der Ein- und Austritt der Warenbahnen (13) von unten durch am unteren Teil des Gehäuses angeordnete Ein- und Austrittsöffnungen (11, 12) erfolgt und daß am Trocknergehäuse eine mit einer Wärmetauschvorrichtung (14) verbundene Abführung (15) für die beim Trocknungsvorgang entstehenden Dampfschwaden vor­gesehen ist.5. Apparatus for performing the method according to claim 1 to 4, characterized in that a largely or completely gas or vapor-tight dryer housing (10) is designed as a steam bell, in which the entry and exit of the webs (13) from below through inlet and outlet openings (11, 12) arranged on the lower part of the housing and that an outlet (15) connected to a heat exchange device (14) is provided on the dryer housing for the steam vapors produced during the drying process. 6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß am Ein- und Austritt der Warenbahnen (13) in das und aus dem Trocknergehäuse (10) Abdichtungen (16, 17) angeordnet sind.6. The device according to claim 5, characterized in that at the entry and exit of the webs (13) in and out the dryer housing (10) seals (16, 17) are arranged. 7. Vorrichtung nach Anspruch 5 und 6, dadurch gekennzeichnet, daß die Abdichtungen für die Waren bahnen (13) am Ein- (11) und auch am Austritt (12) des Trocknergehäuses (10) als mit Absaugevorrichtungen verbundene Schleusen (17) ausge­führt sind.7. Apparatus according to claim 5 and 6, characterized in that the seals for the goods webs (13) at the inlet (11) and also at the outlet (12) of the dryer housing (10) are designed as locks (17) connected to suction devices . 8. Vorrichtung nach Anspruch 5 bis 7, dadurch gekennzeichnet, daß die Führung der Warenbahnen (13) im Trocknergehäuse (10) zwischen dem Ein- (11) und dem Austritt (12) in meh­reren Passagen über- oder nebeneinander erfolgt.8. The device according to claim 5 to 7, characterized in that the guidance of the webs (13) in the dryer housing (10) between the inlet (11) and the outlet (12) in several passages one above the other or side by side.
EP89122301A 1988-12-06 1989-12-03 Process for the emission-free drying of textile webs or the like Withdrawn EP0372444A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3841005 1988-12-06
DE3841005 1988-12-06

Publications (1)

Publication Number Publication Date
EP0372444A1 true EP0372444A1 (en) 1990-06-13

Family

ID=6368513

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89122301A Withdrawn EP0372444A1 (en) 1988-12-06 1989-12-03 Process for the emission-free drying of textile webs or the like

Country Status (1)

Country Link
EP (1) EP0372444A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0779486A1 (en) * 1995-12-12 1997-06-18 Babcock Textilmaschinen GmbH Apparatus for heat treatment of running webs
NL1009726C2 (en) * 1998-07-23 2000-01-25 Klein Borculo Machine En Appar Dryer for bulk products such as foodstuffs, cow feed or animal litter, uses superheated steam or solvent vapor to capture the hot air
WO2009018996A2 (en) * 2007-08-07 2009-02-12 Mars Incorporated Method and apparatus for drying a material
DE202015106039U1 (en) 2015-11-10 2017-02-13 Autefa Solutions Germany Gmbh treatment facility

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2746927A1 (en) * 1976-10-25 1978-04-27 Erich Pagendarm Continuously operating dryer with solvent recovery - uses inert drying medium obtained by combustion of mixt. with low solvent vapour concentration
WO1980001103A1 (en) * 1978-11-15 1980-05-29 Minnesota Mining & Mfg Heat and liquid recovery using open cycle heat pump system
DE3240611A1 (en) * 1981-11-06 1983-05-26 Bachofen & Meier AG, 8180 Bülach Process and apparatus for drying continuous lengths of material
US4421794A (en) * 1980-05-30 1983-12-20 James River Corporation Solvent removal via continuously superheated heat transfer medium
DE3229903A1 (en) * 1982-08-11 1984-02-16 Mohndruck Graphische Betriebe GmbH, 4830 Gütersloh Process and device for reprocessing a drying medium used for drying solvent-containing inks, paints, adhesives or the like on paper or comparable cellulose products
DE3511950A1 (en) * 1985-04-02 1986-10-09 Babcock Textilmaschinen GmbH, 2105 Seevetal Arrangement for reducing the heat consumption in driers
DE3622589A1 (en) * 1985-07-04 1987-01-08 Fuji Photo Film Co Ltd METHOD AND DEVICE FOR DRYING A COATED MATERIAL SHEET

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2746927A1 (en) * 1976-10-25 1978-04-27 Erich Pagendarm Continuously operating dryer with solvent recovery - uses inert drying medium obtained by combustion of mixt. with low solvent vapour concentration
WO1980001103A1 (en) * 1978-11-15 1980-05-29 Minnesota Mining & Mfg Heat and liquid recovery using open cycle heat pump system
US4421794A (en) * 1980-05-30 1983-12-20 James River Corporation Solvent removal via continuously superheated heat transfer medium
DE3240611A1 (en) * 1981-11-06 1983-05-26 Bachofen & Meier AG, 8180 Bülach Process and apparatus for drying continuous lengths of material
DE3229903A1 (en) * 1982-08-11 1984-02-16 Mohndruck Graphische Betriebe GmbH, 4830 Gütersloh Process and device for reprocessing a drying medium used for drying solvent-containing inks, paints, adhesives or the like on paper or comparable cellulose products
DE3511950A1 (en) * 1985-04-02 1986-10-09 Babcock Textilmaschinen GmbH, 2105 Seevetal Arrangement for reducing the heat consumption in driers
DE3622589A1 (en) * 1985-07-04 1987-01-08 Fuji Photo Film Co Ltd METHOD AND DEVICE FOR DRYING A COATED MATERIAL SHEET

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0779486A1 (en) * 1995-12-12 1997-06-18 Babcock Textilmaschinen GmbH Apparatus for heat treatment of running webs
NL1009726C2 (en) * 1998-07-23 2000-01-25 Klein Borculo Machine En Appar Dryer for bulk products such as foodstuffs, cow feed or animal litter, uses superheated steam or solvent vapor to capture the hot air
WO2009018996A2 (en) * 2007-08-07 2009-02-12 Mars Incorporated Method and apparatus for drying a material
WO2009018996A3 (en) * 2007-08-07 2009-04-30 Mars Inc Method and apparatus for drying a material
US10006714B2 (en) 2007-08-07 2018-06-26 Mars, Incorporated Apparatus for drying a material
US10113794B2 (en) 2007-08-07 2018-10-30 Mars, Incorporated Method for drying a material
DE202015106039U1 (en) 2015-11-10 2017-02-13 Autefa Solutions Germany Gmbh treatment facility
US10724794B2 (en) 2015-11-10 2020-07-28 Autefa Solutions Germany Gmbh Treatment device and treatment method

Similar Documents

Publication Publication Date Title
DE3706073C2 (en)
EP0714006B1 (en) Process for drying a substance, in particular wood chips
CH672748A5 (en)
DE3609587C1 (en) Device for the recovery of solvent gases
EP1697016B1 (en) Evaporation process
DE2610983A1 (en) AIR CONDITIONING SYSTEM FOR THE TREATMENT OF FOOD
DE4232647C2 (en) Process and device for dry cleaning textiles
DE2951525A1 (en) METHOD FOR TREATING A GAS TO REMOVE IMPURITIES
DE3737783A1 (en) MACHINE FOR CHEMICAL CLEANING OF TEXTILES
DE2727971C2 (en) Process for the thermal treatment of a web of material
DE3823652A1 (en) METHOD FOR CLEANING SOLVENTS AND FILTER DEVICE FOR CARRYING OUT THIS METHOD
EP0372444A1 (en) Process for the emission-free drying of textile webs or the like
DE19718804A1 (en) Economical, constant pressure wood drying plant with effluent gas cleaning equipment
DE3726282A1 (en) Process and apparatus for separating pollutants from contaminated soils
DE3123792C2 (en)
DE3124388A1 (en) Process and appliance for the adsorption of substances, especially for separating organic solvents from liquids and gases
DE2901894A1 (en) PROCEDURE FOR OPERATING AN ADSORBER SYSTEM AND ADSORBER SYSTEM FOR CARRYING OUT THIS PROCEDURE
DE3933111A1 (en) Recovery of solvent - by desorption of adsorbing agent e.g. molecular sieve pack
DE351216C (en) Method and device for separating liquids from solids
DE3905133A1 (en) Process for removing readily volatile constituents from soils
EP0844916B1 (en) Process for decontamination of suspensions containing silt, pollutants and water
DE3102610A1 (en) METHOD AND DEVICE FOR PREVENTING THE SMOKE FORMATION IN THE EXHAUST GASES OF A COOKING OVEN
DE455798C (en) Method and device for the recovery of the substances taken up by adsorbents
EP1038992B1 (en) Process and apparatus for surface treatment of parts with a solvent
DE3303422C2 (en) Process for the regeneration and inertization of the adsorber units, the molecular sieve and other devices for the low-water recovery of solvents and a device for carrying out this process

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19900629

17Q First examination report despatched

Effective date: 19910205

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19920717