EP0139852B1 - Process for a drying and an immediately following fixing treatment of a running web material and tenter for carrying out the process - Google Patents
Process for a drying and an immediately following fixing treatment of a running web material and tenter for carrying out the process Download PDFInfo
- Publication number
- EP0139852B1 EP0139852B1 EP84107770A EP84107770A EP0139852B1 EP 0139852 B1 EP0139852 B1 EP 0139852B1 EP 84107770 A EP84107770 A EP 84107770A EP 84107770 A EP84107770 A EP 84107770A EP 0139852 B1 EP0139852 B1 EP 0139852B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- treatment
- tenter
- energy
- stream
- per unit
- 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
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
- D06C3/02—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by endless chain or like apparatus
-
- 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
- F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
Definitions
- the invention relates to a method according to the first part of claim 1 and extends to a clamping frame for performing the method.
- the temperatures prevailing over the treatment section are measured continuously in order to correct the amount of energy expended depending on the deviations from the target temperatures required for the optimal treatment and, if necessary, to adapt the treatment rate to an average of the temperature deviations, so that For example, the speed at which a material web is guided through a tenter frame is slowed to the extent and for the duration that the temperature falls below or falls below the target temperatures.
- temperature sensors In order to determine the temperature profile over the length of a treatment section as precisely as possible, temperature sensors must be provided in a correspondingly dense sequence along the treatment section. Contactless temperature sensors such as radiation pyrometers are very expensive. Their use to determine the temperature profile over the treatment line allows an optimization of the web speed and thus an energy saving, but the investment required to do so largely removes the operating cost advantage. Inexpensive non-contact temperature measuring devices are also known (see “Textil cleanse” April 1981, p. 55), but they have to be arranged within a boundary layer that is only a few millimeters thick, so that touching the measuring devices with the web cannot be excluded and markings on the web can arise.
- the amount of heat given off by the heated treatment medium to the material web which is proportional to the difference between the temperature of the incoming treatment medium and the temperature of the goods, is a function of the difference between the temperature of the arriving treatment medium and the temperature of the reflected or flowed through treatment medium certainly.
- this measuring method delivers a temperature profile corresponding to the web temperature.
- the invention has for its object to optimize the duration of treatment in the heat treatment of a textile web, and also to determine the temperature profile of the textile material over the treatment line, as in the method known from DE-A-31 48 576, but without this
- the respective temperature of the textile goods must be measured directly or the temperatures of the treatment medium flowing in and out must be measured.
- the material web speed is regulated.
- the procedure can be such that values of the amounts of energy expended per unit of time are fed to a computer which compares the location of the treatment path with the maximum value deviation and corrects the target path of the treatment path and corrects the material web speed accordingly by a predetermined dryness - and to adhere to the fixing time.
- the method according to the invention takes advantage of the knowledge that the amounts of heat supplied are, for example, proportional to the degree of opening of valves of the treatment medium flows.
- the valve positions can be tapped electrically in a manner known per se and displayed, for example, by means of light-emitting diodes.
- the stenter In order to make the transition point between the dry treatment and the fixing treatment clear, the stenter is first heated. After the temperature has been reached, a certain heat consumption occurs with the valve positions also determined. The resulting measurement values can be trimmed to zero. In this way, the idle power of the stenter, that is, the portion that results from machine-related losses, can be eliminated. After the web has been retracted into the stenter, new measurement values are obtained which only correspond to the proportion for heating up the web and evaporating the water. In this way, the transition point on the treatment line between the dry treatment and the fixing treatment can be displayed.
- a stenter frame consisting of several drying and fixing fields, each with a fan circulating a stream of a gaseous treatment medium in the circuit and a heating device for maintaining the flow at the treatment temperature for carrying out the method according to the invention, is preferably equipped in such a way that the probe of a thermometer is arranged in the circuit of the treatment medium, which is connected to a heating controller to which a valve which changes the amount of energy flowing to the heating device per unit of time is connected, the respective position of which can be detected.
- the heating device consists of a heating register arranged on the suction side of the fan or a gas or oil burner, the probe of the thermometer being arranged behind the heating device in the flow direction.
- a web 1 is guided in a wide-stretched state between nozzle boxes 2 and 3 and acted upon by a gaseous treatment medium flowing essentially in the circuit.
- a burner 5 arranged on the suction side of a fan 4 heats up the treatment medium, the temperature of which is continuously measured on the pressure side of the fan 4. Via a line 6, the temperature is given to a heating controller 7 as an actual value, to which a setpoint is additionally given via a line 8.
- a heating valve 10 in a fuel supply line 11 is controlled via a line 9, via which the burner 5 is supplied with a corresponding amount of fuel. The respective position of the heating valve 10 is made visible by a display instrument 12.
- the temperature of the treatment medium is thus measured in the flow direction behind the burner 5 and before the material web 1 is loaded.
- the actual value determined in this way is compared in heating controller 7 with the setpoint, i.e. the set temperature. If the actual value is below the target value, the heating controller 7 opens the heating valve 10 and closes it again step by step if the actual value is greater than the target value.
- a specific valve position of the heater is thus assigned to a specific heat consumption of the stenter.
- the heat balance of a drying and fixing process can be represented as follows, for example:
- the heat quantities under a), b) and c) form the idle heat requirement of the stenter.
- the heat quantities under d) and e) are the quantities to be applied for the goods. It can be seen from this that the drying process requires a multiple of the thermal energy of the fixing process.
- each stenter frame is equipped with a heating valve and a display instrument that shows the valve position, the decrease in heating energy consumption over the length of the treatment section from one measuring point to the next can be determined, which indicates the point on the treatment section where the drying process ends is and the fixing process begins.
- a display instrument 13 symbolizes the length of a schematically illustrated clamping frame 14 from seven fields 15 arranged one behind the other over the treatment path.
- the transition point between drying and fixing treatment should lie in the tenter 14 where this is cut by a line 16.
- the display instrument 13 shows that the fixing path 17 that is too short results from the selected web speed, which is preceded by a drying path 18 that is dimensioned too long.
- FIG. 3 illustrates a fixing section 17 that is too long and a drying section 18 that is too short.
- the fixing section 17 and the drying section 18 are coordinated with one another in such a way that their transition through line 16 is determined. Only in this example is the web speed optimal, so that the dry treatment time as well as the fixing treatment time is as short as possible, but also as long as necessary.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Fiber Materials (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren nach dem ersten Teil des Anspruches 1 und erstreckt sich auf einen Spannrahmen zur Durchführung des Verfahrens.The invention relates to a method according to the first part of
Bei derartigen, allgmein bekannten Verfahren erfolgt eine dauernde Messung der über die Behandlungsstrecke herrschenden Temperaturen, um je nach den Abweichungen von den für die optimale Behandlung erforderlichen Solltemperaturen eine Korrektur der aufgewendeten Energiemenge herbeizuführen und um erforderlichenfalls auch die Behandlungsgeschwindigkeit einem Mittelwert der Temperaturabweichungen anzupassen, so dass beispielsweise die Geschwindigkeit, mit der eine Warenbahn durch einen Spannrahmen geführt wird, verlangsamt wird in dem Masse und für die Dauer, in dem bzw. für die Solltemperaturen unterschritten werden.In such generally known methods, the temperatures prevailing over the treatment section are measured continuously in order to correct the amount of energy expended depending on the deviations from the target temperatures required for the optimal treatment and, if necessary, to adapt the treatment rate to an average of the temperature deviations, so that For example, the speed at which a material web is guided through a tenter frame is slowed to the extent and for the duration that the temperature falls below or falls below the target temperatures.
Es ist bekannt, dass bei gleichmässigen Trocknungsbedingungen Textilgut so lange eine nahezu konstante Temperatur beibehält, bis eine bestimmte, je nach Faserart verschiedene kritische Restfeuchte erreicht ist, worauf die Trocknungsgeschwindigkeit merklich absinkt und die Textilguttemperatur gleichmässig ansteigt (vgl. «Melliand Textilberichte» 8/1965, S. 887). Ist das Gewebe vollkommen trocken, findet naturgemäss keine Wasserverdampfung mehr statt, für die während des Trocknungsprozesses ein entsprechender Energieanteil aufzuwenden war. Das Gewebe erreicht somit wiederum eine annähernd konstante Temperatur über die restliche Behandlungsdauer.It is known that, with uniform drying conditions, textile goods maintain an almost constant temperature until a certain critical residual moisture, which differs depending on the type of fiber, is reached, whereupon the drying speed drops noticeably and the temperature of the textile goods rises evenly (see «Melliand Textile Reports» 8/1965 , P. 887). If the fabric is completely dry, there is naturally no more water evaporation for which a corresponding amount of energy had to be used during the drying process. The tissue in turn reaches an almost constant temperature over the remainder of the treatment.
Für die Einstellung einer optimalen Behandlungsgeschwindigkeit, durch die beispielsweise das Verhältnis Trockenbehandlungsdauer:Fixier- behandlungsdauer bestimmt wird, ist es erforderlich, die Stelle auf der Behandlungsstrecke zu ermitteln, an der das Textilgut die kritische Restfeuchte aufweist. Wegen des an dieser Stelle einsetzenden Temperaturanstiegs wurde daher schon vorgeschlagen, statt des schwieriger zu messenden Feuchtigkeitsgehaltes des Textilgutes den Temperaturwechsel zu ermitteln und aus diesem Rückschlüsse auf den Feuchtigkeitsgehalt des Textilgutes zu ziehen. Es wurde daher angeregt, stetig die Temperatur des Textilguts direkt, aber kontaktlos mittels Temperaturfühler zu messen.In order to set an optimal treatment speed, by means of which, for example, the ratio of dry treatment time: fixing treatment time is determined, it is necessary to determine the point on the treatment line at which the textile material has the critical residual moisture. Because of the temperature rise that begins at this point, it has therefore already been proposed to determine the temperature change instead of the more difficult to measure moisture content of the textile material and to draw conclusions from this about the moisture content of the textile material. It was therefore suggested to continuously measure the temperature of the textile goods directly, but without contact, using a temperature sensor.
Um den Temperaturverlauf über die Länge einer Behandlungsstrecke möglichst genau zu ermitteln, müssen Temperaturfühler in entsprechend dichter Folge entlang der Behandlungsstrecke vorgesehen werden. Kontaktlos arbeitende Temperaturfühler, wie Strahlungspyrometer, sind aber sehr aufwendig. Ihre Verwendung zur Ermittlung des Temperaturprofils über die Behandlungsstrecke ermöglicht zwar eine Optimierung der Warenbahngeschwindigkeit und damit eine Energieeinsparung, der dazu erforderliche Investitionsaufwand hebt aber den Betriebskostenvorteil zu einem wesentlichen Teil wieder auf. Kostengünstige kontaktfrei arbeitende Temperaturmessgeräte sind zwar auch bekannt (vgl. «Textilbetrieb» April 1981, S. 55), müssen aber innerhalb einer nur wenige Millimeter dicken Grenzschicht angeordnet werden, so dass Berührungen der Messgeräte mit der Warenbahn nicht auszuschliessen sind und Markierungen auf der Warenbahn entstehen können.In order to determine the temperature profile over the length of a treatment section as precisely as possible, temperature sensors must be provided in a correspondingly dense sequence along the treatment section. Contactless temperature sensors such as radiation pyrometers are very expensive. Their use to determine the temperature profile over the treatment line allows an optimization of the web speed and thus an energy saving, but the investment required to do so largely removes the operating cost advantage. Inexpensive non-contact temperature measuring devices are also known (see “Textilbetrieb” April 1981, p. 55), but they have to be arranged within a boundary layer that is only a few millimeters thick, so that touching the measuring devices with the web cannot be excluded and markings on the web can arise.
Aus der DE-A-31 48 576 ist ein Verfahren zur Kontrolle der kontinuierlichen Wärmebehandlung einer textilen Warenbahn bekannt, welches ein in der Industriepraxis genügend genaues Messergebnis liefert, die Steuerung und/oder Regelung der jeweiligen Parameter aufgrund des Messergebnisses erlauben und mit einem Aufwand zu erstellen sowie zu beschreiben sein soll, der durch die Ersparnis an Energie und Produktionszeit voll ausgewogen werden soll. Zur Kontrolle der kontinuierlichen konvektiven Wärmebehandlung einer textilen Warenbahn bei stetiger berührungsloser Messung der Temperatur der Bahn wird dazu vorgeschlagen, so zu verfahren, dass bei einer Anströmung und/oder Durchströmung der Bahn mit erhitzter Luft etwa parallel und/oder quer zum Bahnförderweg die der Temperatur der Warenbahn proportionale, an die Bahn abgegebene Wärmemenge als Funktion der Differenz der Temperatur der auf die Bahn auftreffenden Luft und der Temperatur der an der Bahn reflektierten bzw. durch die Bahn geströmten Luft gemessen wird.From DE-A-31 48 576 a method for controlling the continuous heat treatment of a textile web is known which provides a measurement result which is sufficiently precise in industrial practice, which allows the control and / or regulation of the respective parameters on the basis of the measurement result and at a cost should be created and described, which should be fully balanced by the savings in energy and production time. To control the continuous convective heat treatment of a textile web with constant non-contact measurement of the temperature of the web, it is proposed to proceed in such a way that when the air is heated and / or flowed through with heated air, approximately the temperature of the web is parallel and / or transverse to the web conveying path Material web proportional amount of heat given off to the web is measured as a function of the difference between the temperature of the air hitting the web and the temperature of the air reflected from the web or flowing through the web.
Nach diesem bekannten Verfahren wird somit die von dem erhitzten Behandlungsmedium an die Warenbahn abgegebene Wärmemenge, die der Differenz der Temperatur des ankommenden Behandlungsmediums und der Temperatur der Ware proportional ist, als Funktion der Differenz der Temperatur des ankommenden Behandlungsmediums und der Temperatur des reflektierten oder durchströmten Behandlungsmediums bestimmt. Bei Messungen an mehreren aufeinanderfolgenden Stellen auf der Behandlungsstrecke des zuströmenden und des abströmenden Behandlungsmediums liefert dieses Messverfahren ein der Warenbahntemperatur entsprechendes Temperaturprofil.According to this known method, the amount of heat given off by the heated treatment medium to the material web, which is proportional to the difference between the temperature of the incoming treatment medium and the temperature of the goods, is a function of the difference between the temperature of the arriving treatment medium and the temperature of the reflected or flowed through treatment medium certainly. When measuring at several successive points on the treatment path of the inflowing and outflowing treatment medium, this measuring method delivers a temperature profile corresponding to the web temperature.
Der Erfindung liegt die Aufgabe zugrunde, bei der Wärmebehandlung einer textilen Warenbahn die Behandlungsdauer zu optimieren, und dazu wie bei dem aus der DE-A-31 48 576 bekannten Verfahren gleichfalls das Temperaturprofil des Textilgutes über die Behandlungsstrecke zu ermitteln, jedoch ohne dass dazu die jeweilige Temperatur des Textilguts unmittelbar oder die Temperaturen des jeweils zu- und abströmenden Behandlungsmediums gemessen werden müssen.The invention has for its object to optimize the duration of treatment in the heat treatment of a textile web, and also to determine the temperature profile of the textile material over the treatment line, as in the method known from DE-A-31 48 576, but without this The respective temperature of the textile goods must be measured directly or the temperatures of the treatment medium flowing in and out must be measured.
Ausgehend von einem Verfahren zur Trocken-und unmittelbar anschliessenden Fixierbehandlung einer durch einen aus mehreren Feldern bestehenden Spannrahmens geführten textilen Warenbahn, die in jedem Feld mit einem Strom eines im wesentlichen im Kreislauf geführten gasförmigen Behandlungsmediums beaufschlagt wird, wobei die für jeden Strom des Behandlungsmedi- ums pro Zeiteinheit aufgewendete Energiemenge gemessen wird und eine Veränderung dieser Energiemenge entsprechend der Solltemperatur im betreffenden Feld des Spannrahmens erfolgt, wird zur Lösung der gestellten Aufgabe erfindungsgemäss vorgeschlagen, so zu verfahren, dass den Feldern des Spannrahmens zunächst im Leerlaufbetrieb aufgeheiztes Behandlungsmedium zugeleitet wird und die pro Zeiteinheit erforderliche Energiemenge für jeden Strom zur Aufrechterhaltung der Solltemperatur in den Feldern gemessen wird, worauf die zu behandelnde Warenbahn in den Spannrahmen eingeführt wird und die daraufhin zur Aufrechterhaltung der Solltemperatur in jedem Feld pro Zeiteinheit erforderliche Energiemenge gleichfalls gemessen und die Differenz der beiden Energiemengen eines jeden Stromes ermittelt wird und dass schliesslich in Abhängigkeit von der Stelle der Behandlungsstrecke, an welcher die maximale Abweichung der ermittelten Differenzwerte der Energiemenge für die Ströme aufeinanderfolgender Felder auftritt, die Warenbahngeschwindigkeit geregelt wird.Starting from a method of dry and immediately following fixing treatment of a guided through a multi-fields tenter textile web, which is acted upon in each field with a stream of substantially the recycled gaseous treatment medium, the g for each stream of Behandlun smedi - The amount of energy expended per unit of time is measured and a change in this amount of energy in accordance with the target temperature is carried out in the relevant field of the stenter, to solve the problem, it is proposed to proceed in such a way that the fields of the stenter are first supplied with heated treatment medium in idle mode and the amount of energy required per unit of time for each current to maintain the target temperature in the fields is measured , whereupon the material web to be treated is introduced into the stenter and the amount of energy required to maintain the target temperature in each field per unit of time is also measured and the difference between the two amounts of energy of each stream is determined and finally depending on the location of the treatment line the maximum deviation of the determined difference values of the energy quantity for the streams of successive fields occurs, the material web speed is regulated.
Nach einer besonders vorteilhaften Ausgestaltung der Erfindung kann so verfahren werden, dass Werte der pro Zeiteinheit aufgewendeten Energiemengen einem Rechner zugeleitet werden, der die Stelle der Behandlungsstrecke der maximalen Wertabweichung in Vergleich setzt mit einer Sollstelle der Behandlungsstrecke und die Warenbahngeschwindigkeit entsprechend korrigiert, um eine vorgegebene Trocken- und Fixierdauer einzuhalten.According to a particularly advantageous embodiment of the invention, the procedure can be such that values of the amounts of energy expended per unit of time are fed to a computer which compares the location of the treatment path with the maximum value deviation and corrects the target path of the treatment path and corrects the material web speed accordingly by a predetermined dryness - and to adhere to the fixing time.
Das erfindungsgemässe Verfahren macht sich die Erkenntnis zunutze, dass die zugeführten Wärmemengen beispielsweise dem Öffnungsgrad von Ventilen der Behandlungsmedienströme proportional sind. Die Ventilstellungen lassen sich in an sich bekannter Weise elektrisch abgreifen und beispielsweise durch Leuchtdioden anzeigen.The method according to the invention takes advantage of the knowledge that the amounts of heat supplied are, for example, proportional to the degree of opening of valves of the treatment medium flows. The valve positions can be tapped electrically in a manner known per se and displayed, for example, by means of light-emitting diodes.
Um den Übergangspunkt zwischen der Trokkenbehandlung und der Fixierbehandlung deutlich zu machen, wird zunächst der Spannrahmen aufgeheizt. Nach Erreichen der Temperatur stellt sich ein bestimmter Wärmeverbrauch ein bei ebenso bestimmten Ventilstellungen. Die sich daraus ergebenden Messwerte können gegen Null getrimmt werden. Auf diese Weise ist die Leerlaufleistung des Spannrahmens, also der Anteil, der aus maschinenbedingten Verlusten resultiert, eliminierbar. Nachdem die Warenbahn in den Spannrahmen eingefahren ist, ergeben sich neue Messwerte, die allein dem Anteil zum Aufheizen der Warenbahn und zum Verdampfen des Wassers entsprechen. Auf diese Weise lässt sich der Übergangspunkt auf der Behandlungsstrecke zwischen der Trockenbehandlung und der Fixierbehandlung anzeigen.In order to make the transition point between the dry treatment and the fixing treatment clear, the stenter is first heated. After the temperature has been reached, a certain heat consumption occurs with the valve positions also determined. The resulting measurement values can be trimmed to zero. In this way, the idle power of the stenter, that is, the portion that results from machine-related losses, can be eliminated. After the web has been retracted into the stenter, new measurement values are obtained which only correspond to the proportion for heating up the web and evaporating the water. In this way, the transition point on the treatment line between the dry treatment and the fixing treatment can be displayed.
Ein Spannrahmen aus mehreren Trocken- und Fixierfeldern mit je einem einen Strom eines gasförmigen Behandlungsmediums im Kreislauf umwälzenden Ventilators und einer den Strom auf Behandlungstemperatur haltenden Heizeinrichtung zur Durchführung des erfindungsgemässen Verfahrens ist vorzugsweise so ausgerüstet, dass im Kreislauf des Behandlungsmediums die Sonde eines Thermometers angeordnet ist, das mit einem Heizregler in Verbindung steht, an dem ein die pro Zeiteinheit der Heizeinrichtung zufliessende Energiemenge veränderndes Ventil angeschlossen ist, dessen jeweilige Stellung erfassbar ist.A stenter frame consisting of several drying and fixing fields, each with a fan circulating a stream of a gaseous treatment medium in the circuit and a heating device for maintaining the flow at the treatment temperature for carrying out the method according to the invention, is preferably equipped in such a way that the probe of a thermometer is arranged in the circuit of the treatment medium, which is connected to a heating controller to which a valve which changes the amount of energy flowing to the heating device per unit of time is connected, the respective position of which can be detected.
Nach einer Ausgestaltung des erfindungsgemässen Spannrahmens besteht die Heizeinrichtung aus einem auf der Saugseite des Ventilators angeordneten Heizregister oder einem Gas- oder Ölbrenner, wobei die Sonde des Thermometers in Strömungsrichtung hinter der Heizeinrichtung angeordnet ist.According to one embodiment of the clamping frame according to the invention, the heating device consists of a heating register arranged on the suction side of the fan or a gas or oil burner, the probe of the thermometer being arranged behind the heating device in the flow direction.
Zur Erläuterung der Erfindung sind in der Zeichnung ein Ausführungsbeispiel eines Spannrahmens zur Durchführung des Verfahrens sowie über einem Anzeigeinstrument graphische Darstellungen der über die Länge des Spannrahmens (=Behandlungsstrecke) zugeführten unterschiedlichen Energiemengen und ein Gerät zur Steuerung der Warenbahngeschwindigkeit wiedergegeben: Wie der in Fig. 1 schematisch dargestellte Querschnitt durch das Feld eines Spannrahmens zeigt, wird eine Warenbahn 1 in breitgespanntem Zustand zwischen Düsenkästen 2 und 3 geführt und mit einem im wesentlichen im Kreislauf strömenden gasförmigen Behandlungsmedium beaufschlagt.To illustrate the invention, the drawing shows an exemplary embodiment of a tenter for carrying out the method and, via a display instrument, graphical representations of the different amounts of energy supplied over the length of the tenter (= treatment path) and a device for controlling the web speed: As in FIG. 1 schematically shown cross-section through the field of a tenter, a
Ein auf der Saugseite eines Ventilators 4 angeordneter Brenner 5 heizt das Behandlungsmedium auf, dessen Temperatur auf der Druckseite des Ventilators 4 laufend gemessen wird. Über eine Leitung 6 wird die Temperatur einem Heizregler 7 als Istwert aufgegeben, dem zusätzlich über eine Leitung 8 ein Sollwert aufgegeben wird. Über eine Leitung 9 wird ein Heizventil 10 in einer Brennstoffzuführleitung 11 gesteuert, über die der Brenner 5 mit einer entsprechenden Brennstoffmenge versorgt wird. Die jeweilige Stellung des Heizventils 10 wird durch ein Anzeigeinstrument 12 sichtbar gemacht.A
Die Temperatur des Behandlungsmediums wird somit in Strömungsrichtung hinter dem Brenner 5 und vor der Beaufschlagung der Warenbahn 1 gemessen. Der dabei ermittelte Istwert wird im Heizregler 7 mit dem Sollwert, d.h. der eingestellten Temperatur, verglichen. Liegt der Istwert unter dem Sollwert, öffnet der Heizregler 7 das Heiiventil 10 und schliesst dieses wiederum schrittweise, wenn der Istwert grösser ist als der Sollwert.The temperature of the treatment medium is thus measured in the flow direction behind the
Der Wärmehaushalt des Spannrahmens stellt sich wie folgt dar:
- Über den
Brenner 5 wird die Heizenergie an das im wesentlichen im Kreislauf geführte Behandlungsmedium abgegeben, wodurch dieses auf die Solltemperatur gebracht wird. Das Behandlungsmedium verliert die Wärmeenergie durch das Aufheizen der Ware, durch das Aufheizen und Verdampfen des in der Ware befindlichen Wassers, durch das Aufheizen der dem Kreislauf zugeführten FrIschluft sowie durch Abstrahlungsverluste beispielsweise der Warentransportkette und des Trockenraumes.
- Via the
burner 5, the heating energy is given off to the treatment medium which is essentially circulated, whereby this is brought to the desired temperature. The treatment medium loses the thermal energy due to the heating up of the goods, the heating and evaporation of the water in the goods, the heating of the fresh air supplied to the circuit and radiation losses, for example of the goods transport chain and the drying room.
Da die Temperatur des Behandlungsmediums durch die Wärmeabgabe sinkt, muss sie durch Aufheizung wieder auf Solltemperatur angehoben werden. Einem bestimmten Wärmeverbrauch des Spannrahmens ist somit eine bestimmte Ventilstellung der Heizung zugeordnet.Since the temperature of the treatment medium drops due to the heat, it must pass through Heating can be raised again to the target temperature. A specific valve position of the heater is thus assigned to a specific heat consumption of the stenter.
Die Wärmebilanz eines Trocken- und Fixierprozesses kann sich dabei beispielsweise wie folgt darstellen:
- Die Wärmemengen unter a), b) und c) bilden den Leerlaufwärmebedarf des Spannrahmens. Die Wärmemengen unter d) und e) sind die für die Ware aufzubringenden Mengen. Daraus wird ersichtlich, dass der Trockenprozess ein Vielfaches der Wärmeenergie des Fixierprozesses benötigt.- The heat quantities under a), b) and c) form the idle heat requirement of the stenter. The heat quantities under d) and e) are the quantities to be applied for the goods. It can be seen from this that the drying process requires a multiple of the thermal energy of the fixing process.
Da jedes Spannrahmenfeld mit einem Heizventil und einem die Ventilstellung sichtbar machenden Anzeigeinstrument versehen ist, lässt sich auch das Absinken des Verbrauchs an Heizenergie über die Länge der Behandlungsstrecke von einer Messstelle zur nächsten bestimmen, wodurch die Stelle auf der Behandlungsstrecke angezeigt wird, wo der Trockenprozess beendet ist und der Fixierprozess beginnt.Since each stenter frame is equipped with a heating valve and a display instrument that shows the valve position, the decrease in heating energy consumption over the length of the treatment section from one measuring point to the next can be determined, which indicates the point on the treatment section where the drying process ends is and the fixing process begins.
Wie die Fig. 2 bis 4 zeigen, symbolisiert ein Anzeigeinstrument 13 die Länge eines schematisch dargestellten Spannrahmens 14 aus sieben über die Behandlungsstrecke hintereinander angeordneten Feldern 15.As shown in FIGS. 2 to 4, a
Um die Trocken- und Fixierbehandlung bei einer optimalen Warenbahngeschwindigkeit durchführen zu können, soll die Übergangsstelle zwischen Trocken- und Fixierbehandlung im Spannrahmen 14 dort liegen, wo dieser durch eine Linie 16 geschnitten wird.In order to be able to carry out the drying and fixing treatment at an optimal web speed, the transition point between drying and fixing treatment should lie in the
In Fig. 2 gibt das Anzeigeinstrument 13 zu erkennen, dass sich aus der gewählten Warenbahngeschwindigkeit eine zu kurze Fixierstrecke 17 ergibt, der eine zu lang bemessene Trockenstrecke 18 vorausgeht. Demgegenüber veranschaulicht Fig. 3 eine zu lang bemessene Fixierstrecke 17 und eine zu kurz bemessene Trockenstrecke 18. In Fig. 4 sind dagegen die Fixierstrecke 17 und die Trockenstrecke 18 so aufeinander abgestimmt, dass ihr Übergang durch die Linie 16 bestimmt wird. Nur in diesem Beispiel ist die Warenbahngeschwindigkeit optimal, so dass die Trockenbehandlungsdauer wie auch die Fixierbehandlungsdauer so kurz wie möglich, aber auch so lang wie nötig ist.In FIG. 2, the
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT84107770T ATE32538T1 (en) | 1983-08-08 | 1984-07-04 | PROCESS FOR THE DRYING AND IMMEDIATELY FOLLOWING FIXING TREATMENT OF A TEXTILE WEB AND TENTERING FRAME FOR PERFORMING THE PROCESS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3328557 | 1983-08-08 | ||
| DE3328557A DE3328557A1 (en) | 1983-08-08 | 1983-08-08 | METHOD FOR HEAT TREATING TEXTILE MATERIALS AND TENSIONING FRAME FOR CARRYING OUT THE METHOD |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0139852A1 EP0139852A1 (en) | 1985-05-08 |
| EP0139852B1 true EP0139852B1 (en) | 1988-02-17 |
Family
ID=6206036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84107770A Expired EP0139852B1 (en) | 1983-08-08 | 1984-07-04 | Process for a drying and an immediately following fixing treatment of a running web material and tenter for carrying out the process |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4656756A (en) |
| EP (1) | EP0139852B1 (en) |
| AT (1) | ATE32538T1 (en) |
| DE (2) | DE3328557A1 (en) |
| ES (1) | ES8601352A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3523254A1 (en) * | 1985-06-28 | 1987-01-02 | Brueckner Trockentechnik Gmbh | METHOD AND DEVICE FOR THE AUTOMATIC LUBRICATION OF THE CHAIN LINKS OF AN ENDLESS CONTINUOUS RAILWAY TRANSPORT CHAIN IN A TENSING MACHINE |
| DE3608902A1 (en) * | 1986-03-17 | 1987-09-24 | Brueckner Trockentechnik Gmbh | METHOD FOR THE HEAT TREATMENT OF A MATERIAL IN A TENSING MACHINE |
| DE3710202A1 (en) * | 1987-03-27 | 1988-10-06 | Brueckner Trockentechnik Gmbh | Regulating method for operating a tentering machine for heat treatment of textile fabric webs |
| DE69017218T2 (en) * | 1990-12-05 | 1995-06-22 | Gesma Spa | Device for drying textile goods. |
| AT404641B (en) * | 1995-05-16 | 1999-01-25 | Andritz Patentverwaltung | METHOD FOR CONTROLLING AND / OR REGULATING A DRYING PROCESS, ESPECIALLY PAPER DRYING |
| DE19618900A1 (en) * | 1996-05-10 | 1997-11-27 | Titv Greiz | Control of fabric drying |
| DE19922430B4 (en) * | 1999-05-14 | 2007-04-12 | Moenus Textilmaschinen Gmbh | Device for drying and fixing a wide-guided textile web |
| WO2003029546A1 (en) * | 2001-09-28 | 2003-04-10 | Devendra Somabhai Naik | A stenter machine |
| CN103697483A (en) * | 2013-12-24 | 2014-04-02 | 东华大学 | System for burning and treating waste gas emitted by dyeing and finishing heat-setting machine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3259995A (en) * | 1964-02-03 | 1966-07-12 | Proctor & Schwartz Inc | Moving material drying method and apparatus |
| US3559882A (en) * | 1969-03-20 | 1971-02-02 | Reliance Electric Co | Process digital control |
| US3955287A (en) * | 1974-08-22 | 1976-05-11 | Astec Industries, Inc. | Superheat apparatus for drying textile products |
| DE2544590A1 (en) * | 1975-10-04 | 1977-04-14 | Buettner Schilde Haas Ag | THROTTLE DRYERS WITH THINK BODIES ABOVE AND BELOW A CONTINUOUS PRODUCT LINE |
| DE2721965C2 (en) * | 1977-05-14 | 1986-09-11 | Babcock-BSH AG vormals Büttner-Schilde-Haas AG, 4150 Krefeld | Process for monitoring and controlling the drying of veneer sheets in a continuous process |
| US4133636A (en) * | 1977-06-30 | 1979-01-09 | Blu-Surf, Inc. | Tentor |
| US4199871A (en) * | 1978-02-23 | 1980-04-29 | Ward Systems, Inc. | Automatic hold speed setting control method and apparatus used with a continuous automatic wood veneer dryer conveyor speed control monitoring computer apparatus |
| US4299036A (en) * | 1979-06-08 | 1981-11-10 | Midland-Ross Corporation | Oven with a mechanism for cascading heated gas successively through separate isolated chambers of the oven |
| DE3104556A1 (en) * | 1980-12-03 | 1982-08-26 | Brückner Trockentechnik GmbH & Co KG, 7250 Leonberg | DEVICE FOR THE HEAT TREATMENT OF RAILWAY GOODS |
| DE3148576C2 (en) * | 1981-09-08 | 1986-05-22 | A. Monforts GmbH & Co, 4050 Mönchengladbach | Device for controlling the continuous heat treatment of a textile web of material |
-
1983
- 1983-08-08 DE DE3328557A patent/DE3328557A1/en active Granted
-
1984
- 1984-07-04 DE DE8484107770T patent/DE3469382D1/en not_active Expired
- 1984-07-04 EP EP84107770A patent/EP0139852B1/en not_active Expired
- 1984-07-04 AT AT84107770T patent/ATE32538T1/en not_active IP Right Cessation
- 1984-07-31 ES ES534776A patent/ES8601352A1/en not_active Expired
-
1986
- 1986-01-09 US US06/817,171 patent/US4656756A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE3469382D1 (en) | 1988-03-24 |
| ES534776A0 (en) | 1985-11-01 |
| EP0139852A1 (en) | 1985-05-08 |
| US4656756A (en) | 1987-04-14 |
| DE3328557C2 (en) | 1989-12-14 |
| DE3328557A1 (en) | 1985-02-28 |
| ES8601352A1 (en) | 1985-11-01 |
| ATE32538T1 (en) | 1988-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2402538C2 (en) | Method and device for conditioning tobacco | |
| DE3851340T3 (en) | Method and device for controlling the pressure distribution on a material web. | |
| EP0268774B1 (en) | Continuous veneer dryer | |
| DE3446642C2 (en) | ||
| DE2904308A1 (en) | METHOD AND ARRANGEMENT FOR DRYING TOBACCO | |
| DE1758057B2 (en) | Device for melting and conditioning thermoplastic materials, in particular glass | |
| DE4325915A1 (en) | Method for measuring humidity of a material web on a continuous drier and device for carrying out the method | |
| EP0139852B1 (en) | Process for a drying and an immediately following fixing treatment of a running web material and tenter for carrying out the process | |
| EP2516949A1 (en) | Method and device for drying sheets of drywall | |
| DE3148576C2 (en) | Device for controlling the continuous heat treatment of a textile web of material | |
| DE2019369C3 (en) | Method of drying tobacco and drying conveyor | |
| WO2009132607A1 (en) | Device and method for thermally treating workpieces in particular by convective heat transfer | |
| DE2824483C3 (en) | Device for moistening, soaking or finishing a web made of paper, cardboard or foil | |
| DE2219109C3 (en) | Continuous dryer for sheet-like materials | |
| DE471664C (en) | Automatic control device for fabric tensioning and drying machines | |
| DE3202476C2 (en) | Device for regulating the temperature in an oven | |
| DE1907551B2 (en) | Method for regulating a multi-zone furnace for heating rolling stock | |
| DE4410971B4 (en) | Method for controlling the temperature in a heating furnace | |
| DE905018C (en) | Device for superheated steam cooling | |
| EP0049328A1 (en) | Device for the heat recovery of waste gases of some plants | |
| DE69722376T2 (en) | CONTROL SYSTEM FOR HEATING A GLASS BENDING OVEN | |
| DE3525063C2 (en) | ||
| DE2753520A1 (en) | Furnace with optimum performance gas burner - utilises oxygen detector for optimising combustion efficiency in all loading ranges | |
| DE3234598A1 (en) | Method and device for controlling the dwell time of a continuous material in a heat-treatment device | |
| DE2523411A1 (en) | Hot air drying system for items of variable moisture content - has exhaust air valve flap with coupled setting motor to control air flows |
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 |
|
| 17P | Request for examination filed |
Effective date: 19841004 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
| REF | Corresponds to: |
Ref document number: 32538 Country of ref document: AT Date of ref document: 19880315 Kind code of ref document: T |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
| REF | Corresponds to: |
Ref document number: 3469382 Country of ref document: DE Date of ref document: 19880324 |
|
| ET | Fr: translation filed | ||
| ITF | It: translation for a ep patent filed |
Owner name: STUDIO JAUMANN |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19880704 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19880705 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19880731 Ref country code: LI Effective date: 19880731 Ref country code: CH Effective date: 19880731 Ref country code: BE Effective date: 19880731 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| BERE | Be: lapsed |
Owner name: H. KRANTZ G.M.B.H. & CO. Effective date: 19880731 |
|
| 26N | No opposition filed | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19890201 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| ITTA | It: last paid annual fee | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19920525 Year of fee payment: 9 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19940331 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| EUG | Se: european patent has lapsed |
Ref document number: 84107770.4 Effective date: 19890510 |
|
| ITPR | It: changes in ownership of a european patent |
Owner name: CESSIONE;H. KRANTZ TEXTILTECHNIK GMBH |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19950707 Year of fee payment: 12 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19950714 Year of fee payment: 12 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Effective date: 19960704 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19970402 |