EP0319681B1 - Dispositif pour le traitement thermique d'une large bande de textile en déplacement continu - Google Patents

Dispositif pour le traitement thermique d'une large bande de textile en déplacement continu Download PDF

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Publication number
EP0319681B1
EP0319681B1 EP88117350A EP88117350A EP0319681B1 EP 0319681 B1 EP0319681 B1 EP 0319681B1 EP 88117350 A EP88117350 A EP 88117350A EP 88117350 A EP88117350 A EP 88117350A EP 0319681 B1 EP0319681 B1 EP 0319681B1
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EP
European Patent Office
Prior art keywords
hot air
length
zone
heating zone
heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88117350A
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German (de)
English (en)
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EP0319681A2 (fr
EP0319681A3 (fr
Inventor
Jörg Müller
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.)
Brueckner Trockentechnik GmbH and Co KG
Original Assignee
Brueckner Trockentechnik GmbH and Co KG
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Application filed by Brueckner Trockentechnik GmbH and Co KG filed Critical Brueckner Trockentechnik GmbH and Co KG
Priority to AT88117350T priority Critical patent/ATE81399T1/de
Publication of EP0319681A2 publication Critical patent/EP0319681A2/fr
Publication of EP0319681A3 publication Critical patent/EP0319681A3/fr
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Anticipated expiration legal-status Critical
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Classifications

    • 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
    • F26B13/06—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path
    • F26B13/08—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path using rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply

Definitions

  • the invention relates to a device for heat treatment, in particular for drying and condensing, of a continuously transported, broadly guided textile web, according to the preamble of patent claim 1.
  • a special application for such a heat treatment device is the heat treatment of textile webs, which are made entirely or partially from natural fibers and are to be made easy to care for, heat-resistant and shrink-resistant by a synthetic resin treatment, the heat treatment to be carried out to condense the applied synthetic resin materials.
  • the material web must be brought to a predetermined temperature and left at this temperature for a predetermined time.
  • Such an approach i. H. targeted heating and lingering of the material web, occurs in textile finishing not only in the aforementioned condensation, but also in other processes, some of which are similar, e.g. B. in the thermal insulation of textile webs.
  • the heating zone formed with upright treatment channels and impact jet nozzle boxes is immediately followed by the dwell zone in the form of a hot flue. If there are now webs with different basis weights or different humidities are to be treated, the energy requirement for heating the material web changes, while the temperature and the dwell time of the dwell zone remain constant. In such a device there is usually a constant amount of material, which results in a fixed relationship between the achievable treatment speed and the sum of the heating and residence time. If the heating-up time (length of stay in the heating-up zone) changes, the dwell time (length of stay in the heating-up zone) is automatically influenced accordingly.
  • the material web - via the impact jet nozzle boxes - is to be subjected to particularly intense hot air and heated in the desired manner, while in the subsequent dwell zone, only as much thermal energy needs to be supplied to the material web via the ventilation boxes and the resulting hot air , as is necessary for a constant residence temperature.
  • the invention is based on the object of improving a device of the type required in the preamble of claim 1 in such a way that a web to be treated is brought to the required temperature in the heating zone in a particularly targeted, economical and easily adjustable manner and also in the dwell zone can be kept at the heated temperature in a particularly economical manner and with relatively simple means.
  • this device first of all, by arranging a partition wall between the heating zone and the immediately downstream dwell zone that only leaves a web passage opening, it is ensured that when the temperature in the heating zone changes, in particular an increase, the hot air from the heating zone and hot air are mixed from the subordinate dwell zone is avoided. In this way, an increase in the hot air temperature has a very targeted effect only in the heating zone, which can be carried out particularly economically.
  • the heat treatment device according to the invention can essentially — as shown in the drawing — have a common housing 1 for all treatment zones. Through this device, a textile fabric web 2 is continuously transported through in a known manner in a wide manner (cf. arrows 3).
  • two treatment zones are accommodated in the housing 1 of the device, namely a heating zone 4 heating the web 2 to a predetermined temperature and a heating zone 4 downstream of the heating zone 4, the web 2 at a predetermined temperature for a predetermined time dwell zone 5.
  • a number of essentially upright, adjacent treatment channels 6 are provided, each of which is delimited by two approximately upright rows of impact jet nozzle boxes 7, the nozzle surfaces 7a of which face the respective web side are provided with nozzle openings 8, which are approximately perpendicular to the associated, opposite web side are directed.
  • deflection and guide rollers 9 for the web 2 are arranged in the heating zone 4 in such a way that the treatment channels 6 are passed through in a roughly zigzag fashion one after the other by the web 2.
  • nozzle surfaces 7a (with the nozzle openings 8) of the impact jet nozzle boxes 7 facing the web sides in a slightly inclined manner in adaptation to the previously mentioned web path, so that the nozzle surfaces 7a are each approximately parallel to that in the associated treatment channel 6 extending web 2 are aligned.
  • crushing rollers 11 are preferably driven by a drive device, not shown, with a peripheral speed adapted to the web transport speed.
  • this heating zone 4 can be divided, so to speak, into two heating fields in such a way that the - viewed in the web transport direction (arrows 3) -
  • the two upright channels 6 first passed through the web 2 form a first heating field and the two upright treatment channels 6 (ie the third and fourth treatment channels 6) thereafter passed through the web 2 form a second heating field.
  • this can of course also be done with only one such heating field, i.e. H. So be equipped with only two upright treatment channels 6, or with more than two such heating fields.
  • the impact jet nozzle boxes 7 of the heating zone 4 are all connected together to the pressure side 12a of a first hot air blower device 12.
  • This first hot air blower device 12 is preferably designed in the manner of a circulating air blower device known per se and is preferably arranged in the lower part of the heating zone 4 (as illustrated in the drawing).
  • This first hot air blower device 12 thus contains in the usual way a hot air fan 13 with a drive motor 14 and a normal hot air circulating flowed through heat exchanger 15, which is connected to the vacuum side (suction side) 13a of the hot air fan 13.
  • a type of distributor line 16 is provided as a hot air line connection between the pressure side 12a of this first hot air blower device 12 and the front inflow openings 7b of the impact jet nozzle boxes 7.
  • adjustable throttle valves 17 (cf. FIG. 2) can be arranged in at least some inflow openings 7b of the impingement nozzle boxes 7, which are provided as a type of means for controlling the speed and / or quantity of the hot air to be supplied to the impingement jet boxes and to be able to adjust.
  • bypass flap 18 and a bypass opening 19 may also be advantageous to provide a bypass flap 18 and a bypass opening 19 at a suitable point, for example at the upper end (shown in FIG. 2) of the distributor line 16, in such a way that at least a part (possibly even the whole amount) of the circulating hot air then can be temporarily derived from the associated zone if the air pressure at the nozzle boxes has to be removed when the device is at a standstill in order to avoid blowing the stationary web too sharply and thus reducing the quality.
  • a measuring device 20 for measuring the surface temperature of the web 2 at least at the end of the heating zone 4, but preferably at the end of each heating field, these measuring devices preferably being able to be arranged approximately in the area of the housing cover 1a.
  • the measurement signals of these measuring devices 20 can then be applied to the control means described above for the first hot air blower device, for example via a control box indicated at 21, for setting the hot air temperature.
  • the control box 21 could, for example, be connected to the drive motor 14 of the hot air fan 13 in terms of control.
  • the heating power should be variable and quickly adaptable by means of the circulating hot air, as mentioned at the beginning, the hot air used in the holding zone 5 only needs to be kept at a constant holding temperature to become.
  • at least one second hot air blower device which is simple to control compared to the first hot air blower device can be provided in the dwell zone 5.
  • the dwelling zone 5 is constructed overall in the form of a hot flue with upper and lower rows of deflection and guide rollers 22 for loop-shaped guidance of the web 2.
  • This dwelling zone 5 preferably has at least two immediately successive ones Dwell fields 5a, 5b (only two fields are shown in FIG. 1).
  • Each dwell field 5a and 5b is assigned its own second hot air blower device 23a, 23b, each of which can be constructed in principle in the same way as the first hot air blower device 12 of the heating zone 4, but without the complex control and setting means, because - how mentioned - the treatment temperature of the circulating hot air should be set constantly.
  • each dwell field 5a, 5b of the dwell zone 5 contains a number of ventilation boxes 24 connected to the pressure side of the associated second hot-air blower device 23a or 23b, the nozzle openings (slots, rows of holes or 24a) are directed into the respectively opposite open fabric web loops 2a, these nozzle openings 24a extending approximately over the entire width of the product web 2.
  • the hot air is inflated in each dwell 5a, 5b on only one side of the web 2 and in two successive adjacent dwellings 5a, 5b on opposite sides of the web, the hot air as shown in Fig. 1 dashed arrows 25 is indicated.
  • the second hot-air blower device 23a together with its ventilation boxes 24 in the first dwell 5a in the lower part of the device and the second hot-air blower device 23b with their ventilation boxes 24 in the upper part of the device (in each case associated dwell field) arranged, as can be clearly seen in Fig. 1.
  • the web of material is only ventilated from one side in each dwell field 5a, 5b, but the side of the ventilation alternates from dwell field to dwell field, i. H. 1, the web 2 in the first dwell 5a only from below and in the second dwell 5b only from above with hot air, then both sides of the web of possible reaction residues, eg. B. formaldehyde to be freed.
  • FIG. 1 An important feature of the invention in this heat treatment device can also be seen from FIG. 1.
  • a partition wall 26 - which may be sufficiently insulating - which extends transversely through the housing 1 and which only leaves a just sufficiently large web passage opening 27 through which the web moves from the heating zone 4 into the immediately following first dwelling field 5a of dwelling zone 5.
  • the arrangement of this partition wall 26 creates a clear division of the device or the housing 1 into an intensely ventilated heating zone 4 and a somewhat mildly ventilated dwell zone 5, which accommodates the different energy requirements of the two zones and the possibility of influencing the heating in the dwell zone 5 operational changes in the heating zone 4 to a minimum, possibly even completely reduced.
  • the heating zone 4 the targeted and necessary to the extent necessary, controllable heating of each Supported web 2 to be treated in a particularly economical manner.
  • the web 2 is heated - as already indicated - in the heating zone 4 by vigorous, intensive impingement jet ventilation (with hot air jets hitting the web vertically), while in the dwelling zone the web 2 is subjected to parallel or longitudinal ventilation by the hot air (arrows 25) is blown into the web loops formed.
  • the hot air speed and / or quantity and / or temperature can be regulated in a relatively simple and rapid manner during the current treatment process, so that the web has reached the desired state at the end of the heating zone 4.
  • This can be done, for example, by the aforementioned speed control of the hot air fan 13 or its drive motor 14 and / or the throttle valves 17 in the region of the inflow openings 7b of the impact jet nozzle boxes 7.
  • control can take place via the measuring devices 20 for the surface temperature of the web 2.
  • such a control can of course also be carried out with other known devices, for example - as is known per se - by determining the heat energy exchange by measuring the temperatures in the area of the hot air inflow and outflow and the further via the temperature difference Control of the hot air in the heating zone 4 mentioned above is carried out.
  • the embodiment of the heat treatment device according to the invention previously described with reference to FIGS. 1 and 3 is particularly advantageously and economically suitable for carrying out the condensation described above of textile webs treated with synthetic resin or the like.
  • the device can also be adapted in a suitable manner to other heat treatment processes in textile finishing, for example for drying or the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Drying Of Solid Materials (AREA)

Claims (9)

  1. Dispositif de traitement thermique, en particulier de séchage et de condensation d'une nappe de produit textile (2) transportée en continu et guidée en étant étalée à plat, comprenant
    a) une zone de chauffage (4) portant la nappe de produit (2) à une température prescrite et dans laquelle chacun de plusieurs canaux de traitement (6) sensiblement verticaux, disposés les uns à côté des autres et par lesquels la nappe de produit passe successivement, est délimité par deux rangées de caissons (7) à ajutages de projection de jets rebondissants, dont les orifices (8) des ajutages sont orientés à peu près perpendiculairement sur les deux côtés de la nappe de produit et qui sont raccordés au refoulement (12a) d'un premier dispositif (12) de soufflage d'air chaud, des rouleaux de renvoi et de guidage (9) étant disposés au-dessus et au-dessous des canaux de traitement (6) de manière que la nappe de produit (2) passe globalement à peu près en zig-zag par ces canaux de traitement (6),
    b) une zone (5) de maintien en condition, qui est montée en aval de la zone de chauffage (4) et maintient la nappe de produit à la température prescrite pendant un temps prédéterminé et qui comprend à la manière d'une hot-flue des rangées supérieure et inférieure de rouleaux (22) de renvoi et de guidage de la nappe de produit (2) de manière à lui conférer la forme de boucles, ainsi que plusieurs caissons de ventilation (24) raccordés au refoulement d'au moins un second dispositif de soufflage d'air chaud (23a, 23b) et dont les orifices des ajutages (24a) sont orientés dans les ouvertures des boucles (2a) de la nappe de produit (2) approximativement sur la largeur de cette dernière,
    caractérisé en ce que
    c) une cloison (26) ne laissant subsister qu'une ouverture (27) de passage de la nappe de produit est disposée entre la zone de chauffage (4) et la zone (5) de maintien en condition qui lui fait immédiatement suite,
    d) des organes de commande et de réglage de la vitesse et/ou du débit de l'air chaud dirigé sur les caissons (7) à ajutages de projection de jets rebondissants sont affectés au premier dispositif (12) de soufflage d'air chaud de la zone de chauffage (4),
    e) le second dispositif de soufflage d'air chaud (23a, 23b) est réglable dans le sens d'une température constante de maintien dans la zone (5) de maintien en condition.
  2. Dispositif selon la revendication 1, comprenant un ventilateur à air chaud (13) que comporte le premier dispositif (12) de soufflage d'air chaud, caractérisé en ce que les organes de commande de la vitesse et/ou du débit de l'air chaud sont formés par une commande (14) à vitesse variable du ventilateur (13) à air chaud.
  3. Dispositif selon la revendication 1, caractérisé en ce que des clapets d'étranglement (17) sont disposés au moins dans certains des orifices (7b) d'admission d'air chaud des caissons (7) à ajutages de projection de jets rebondissants.
  4. Dispositif selon la revendication 1, dans lequel chaque dispositif de soufflage d'air chaud comprend au moins un ventilateur à air chaud, caractérisé en ce que des canalisations d'arrivée d'air chaud (par exemple 16) sont prévues entre les dispositifs de soufflage d'air chaud (12, 23a, 23b) et les caissons correspondants à ajutages ou de ventilation (7, 24), un dispositif de dérivation (18, 19) comprenant des clapets de dérivation (18) étant prévu au moins dans la canalisation (16) d'arrivée aux caissons (7) à ajutages de la zone de chauffage (4).
  5. Dispositif selon la revendication 1, caractérisé en ce que tous les dispositifs de soufflage d'air chaud (12, 23a, 23b) sont prévus sous la forme de dispositifs de soufflage à circulation d'air dans la zone correspondante de traitement (4, 5) et comprennent des échangeurs de chaleur (par exemple 15) dans leur côté en dépression.
  6. Dispositif selon la revendication 1, caractérisé en ce qu'un dispositif (20) de mesure de la température de la surface de la nappe de produit (2) est disposé au moins à l'extrémité de la zone de chauffage (4), ses signaux de mesure étant envoyés aux organes de commande du premier dispositif de soufflage d'air chaud (12) pour le réglage de la température de l'air chaud.
  7. Dispositif selon la revendication 1, caractérisé en ce que les caissons (7) à ajutages de projection de jets rebondissants qui délimitent les canaux de traitement (6) de part et d'autre de la nappe de produit (2) sont interrompus approximativement à mi-hauteur par un intervalle (10) dans lequel des rouleaux de déviation (11) parallèles aux rouleaux supérieurs et inférieurs de renvoi et de guidage (9) sont disposés dans chaque canal de traitement (6) en étant décalés de manière que la nappe de produit soit légèrement déviée de son parcours vertical à mi-hauteur dans chaque canal de traitement afin qu'elle soit guidée en étant sensiblement tendue, les surfaces (7a) des caissons (7) à ajutages de projection de jets rebondissants qui sont tournées vers les côtés de la nappe de produit étant légèrement inclinées sur la verticale de manière correspondant au parcours de la nappe de produit.
  8. Dispositif selon la revendication 1, caractérisé en ce que la zone de chauffage (4) comprend un domaine ou plusieurs domaines successifs de chauffage, chaque domaine de chauffage comprenant deux canaux verticaux de traitement (6) et le premier dispositif (12) de soufflage d'air chaud étant prévu en commun pour tous les domaines de chauffage.
  9. Dispositif selon la revendication 1, caractérisé en ce que la zone (5) de maintien en condition est subdivisée en au moins deux domaines (5a, 5b) qui se succèdent immédiatement, un second dispositif propre de soufflage d'air chaud (23a, 23b) étant affecté à chaque domaine de maintien en condition de manière que dans chaque domaine de maintien en condition, l'air chaud (25) ne soit projeté que contre un côté de la nappe de produit (2) et de plus qu'il soit projeté sur les côtés opposés de la nappe de produit dans les deux domaines successifs (5a, 5b) de maintien en condition.
EP88117350A 1987-12-10 1988-10-18 Dispositif pour le traitement thermique d'une large bande de textile en déplacement continu Expired - Lifetime EP0319681B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88117350T ATE81399T1 (de) 1987-12-10 1988-10-18 Vorrichtung zur waermebehandlung einer breitgefuehrten textilen warenbahn.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3741876 1987-12-10
DE19873741876 DE3741876A1 (de) 1987-12-10 1987-12-10 Vorrichtung zur waermebehandlung einer breitgefuehrten textilen warenbahn

Publications (3)

Publication Number Publication Date
EP0319681A2 EP0319681A2 (fr) 1989-06-14
EP0319681A3 EP0319681A3 (fr) 1991-05-15
EP0319681B1 true EP0319681B1 (fr) 1992-10-07

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ID=6342297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88117350A Expired - Lifetime EP0319681B1 (fr) 1987-12-10 1988-10-18 Dispositif pour le traitement thermique d'une large bande de textile en déplacement continu

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EP (1) EP0319681B1 (fr)
AT (1) ATE81399T1 (fr)
DE (2) DE3741876A1 (fr)

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DE19618900A1 (de) * 1996-05-10 1997-11-27 Titv Greiz Verfahren zur Steuerung sowie zur Regelung der Wärmebehandlung von bahnförmigem Gut, insbesondere einer textilen Warenbahn
DE10136966A1 (de) * 2001-07-28 2003-02-27 Brueckner Trockentechnik Gmbh Verfahren zur Wärmebehandlung einer textilen Warenbahn
CN103234335B (zh) * 2013-04-26 2016-12-28 上海长园电子材料有限公司 风干装置
US9714479B2 (en) * 2014-06-04 2017-07-25 Teresa Catallo Heat setter for delicate and/or sensitive knit fabrics
DE102015101321B3 (de) * 2015-01-29 2016-05-25 Schlatter Deutschland Gmbh & Co. Kg Luftkasten einer Ausrüstungsmaschine
CN109945602B (zh) * 2019-03-18 2024-02-06 江苏九盛印染设备有限公司 拉幅定型机烘箱系统
CN113203272A (zh) * 2020-01-31 2021-08-03 Ykk株式会社 干燥机
CN114775205B (zh) * 2022-04-20 2023-11-24 武汉军旭实业有限责任公司 一种防静电抗菌面料制备设备及其制备方法
CN115950233A (zh) * 2022-10-08 2023-04-11 苏州东奕盛材料科技有限公司 一种用于纺织布料的高效脱水装置及其使用方法
CN116408962B (zh) * 2023-06-12 2023-08-11 天津市天缘电工材料股份有限公司 一种聚酰亚胺薄膜的加工装置及其控制方法

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Also Published As

Publication number Publication date
DE3875226D1 (de) 1992-11-12
ATE81399T1 (de) 1992-10-15
DE3741876A1 (de) 1989-06-22
EP0319681A2 (fr) 1989-06-14
EP0319681A3 (fr) 1991-05-15

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