• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to drying and m. used in textile and chemical industries. The purpose of the invention is to increase the drying efficiency. The cloth of material 4 impregnated with a thermosetting synthetic resin is blown with coolant in the first 5 and second 7 drying zones at a speed of 1.5-1.53 m / s and at 140-180 ° C. At the same time, the fabric of material 4 is subjected to radiant heating at 160-200 ° C. C. The device for drying the web contains the impregnation bath 1 and the working chamber 3 with the first drying zone 5, the cooling chamber 6, the second drying zone successively placed in the course of movement of the material 4. On the walls 13, 14 of the working chamber 3, radiating heating systems are placed; 5 ^ > &
    公开号:SU1715214A3
    申请号:SU853898651
    申请日:1985-04-01
    公开日:1992-02-23
    发明作者:Мино Такеяси；Харада Мицуаки
    申请人:Синтер Лимитед (Фирма)；
    IPC主号:
    专利说明:

    body elements in the form of pipelines 15, which from the web of material 4 are provided with shields 16. Working chamber 3
    enclosed in a sealed insulated casing filled with warm air. 2 sp, and 2 zp f-ly, 5 ill.
    The invention relates to drying, is intended for drying a web of material impregnated with a thermosetting synthetic resin, and can be used in the textile, chemical and other industries.
    The aim of the invention is to increase the drying efficiency.
    FIG. 1 shows a plant for drying a web of material impregnated with thermosetting synthetic resin, a longitudinal section; in fig. 2 - pipeline, whose fio transmits heating means (with a screen), partial tearing; in FIG. 3, a partial digging out of a pipe laid in the form of a coil, through which the heating means flows; in fig. 4, the form of the pipeline in the form of three coils; in fig. 5 - installation for drying, the cross section.
    The drying device comprises an impregnating bath 1 filled with synthetic resin 2, a working chamber 3 having successively arranged the first drying zone 5, the cooling chamber 6, the second drying zone 7, the output rollers 8, the slits 9 for the passage of the material web 4, air closures 10, air supply devices 11, exhaust air exhaust branch pipes 12, walls 13 of the first drying zone 5, walls 14 of the second drying zone 7, radiating heating elements made in the form of pipelines 15, screens 16, heaters 17 air spirit, made in the form of heat exchangers, blowers 18, guide rollers 19, sealed insulated casing 20, platform 21, ladder 22, fan 23.
    The device works as follows.
    The web of material 4 is passed through the impregnation bath 1, then passes through the first drying zone 5 from the bottom up, and then through the cooling chamber 6, through the second drying zone 7 from top to bottom. Next, the fabric material 4 enters the system output rollers 8 and from there comes for further processing.
    The drying zones 5 and 7 are sealed to the slits 9, through which the web of material 4 is passed through. In the vicinity of the slits 9, air shutters 10, 5
    preventing air from entering the atmosphere from the working chamber 3. At the bottom of the working chamber 3 on both sides of the material web 4 are devices 11 for supplying air, through which the preheated air is fed from the bottom upwards parallel to the material web 4. This air flows in the first drying zone 5 in the form of a laminar flow from the bottom up to the nozzle 12, through
    which goes exhaust air.
    On walls 13 and 14 of the first 5 and second 7 zones a pipeline 15 is placed, which is laid in the form of a coil and through which the heating means is passed.
    Densely laid coils of the pipeline 15 from the side of the web of material 4 are closed by the screen 16. The oil flowing through the pipeline 15 evenly heats the screen. 16 and the radiation heat is supplied in the direction of the web of material 4 moving in the first 5 and second 7 zones of drying.
    Fresh air entering the air supply units 11 is preheated in the preheater 17 and then with
    using blowers 18, is supplied to working chamber 3 in this way.
    FIG. 2 shows a portion of the pipeline T5 through which the oil is supplied, along with screen 16. Screen 16 represents
    a wall of the working chamber 3, which prevents the formation of turbulence in the air flow.
    FIG. 3 schematically shows the structure of the pipeline 15 in the form of a coil with
    screen 16 facing the web of material 4. It should be noted that to create a stable temperature regime, the web width of material 4 must be less than the width of the screen 16.
    Another embodiment is shown in FIG. 4. It presents three parallel arranged along the width of the canvas of the pipeline 15, made in the form of coils. These separate pipelines 15
    are fed from various sources, which allows the heat distribution to vary across the width of the web of material 4. In the example shown in FIG. 4, at the edges of the web of material 4 by means of pipelines 15
    other drying conditions may be created that are different from those created in the center of the web of material 4,
    FIG. 5 shows a cross section of the entire installation with both drying zones 5 and 7 through which the web of material 4 is fed. First 5 and second 7 drying zones are located in an insulated casing 5 20 filled with air heated, for example, to 90 ° C. Around this tower-like the structure is a platform 21, on which it is possible to climb stairs 22..
    FIG. 1 shows the air supply. In line with this, the exhaust air from the drying zones 5 and 7 is supplied via a fan 23 to an air cleaning unit. The amount of exhaust air supplied to the cleaning can be 15–90% of the amount of fresh air supplied. As a result of this adjustment of the amount, an excessive pressure is created in the drying zones 5 and 7. A substantial part of the exhaust air can be transported again to the preheater 17, made in the form of a heat exchanger, while a small part of the exhaust air is fed through the fan 23 for cleaning.
    The method is carried out in an installation with: 25. the first 5 and second 7 drying zones with a height of 10m.
    EXAMPLE 1 The web speed of the material 4 is 1.5 m / min. In the first drying zone 5, the air temperature is 30–170 ° C, and the radiant heating temperature is maintained at 200 ° C. The air velocity is maintained at 1.50 m / s.
    In the second drying zone 7, the air temperature is 180 ° C, and the temperature of 35 radiant heating is maintained at 200 ° C. The air flow rate is 1.53 m / s.
    EXAMPLE 2 In the first zone 5, the air temperature is 140 ° C, and the radiant heating temperature is 160 ° C. 40
    In the second drying zone 7, the air temperature is 150 ° C and the radiant heating temperature is 165 ° C.
    Heat is supplied to the web of material 4 in the form of radiant energy, and air is supplied 45 to the working chamber 3 as an adjustable stream of fresh preheated air and. passes in zones 5 and 7 along the web of material 4 in the form of a laminar flow mainly parallel to the web of material 4.
    This leads to the fact that particles of the resin, which might otherwise settle on the walls of the working chamber 3, are not blown off the surface of the material 4 web. If 55 this happens, over time these resin particles undergo dispersion solidification and carbonization. In this state, these carbonized resin particles can be separated from the walls of the working
    chambers 3 and fall onto the web of material 4, with the result that so-called black spots are formed on the final product. The invention avoids the formation of these so-called black spots on the final product. Therefore, it is also no longer necessary to stop the proposed installation from time to time and to clean the resin particles that have settled on the walls.
    Since fresh air is supplied at a relatively low speed and in the form of a laminar flow, this avoids vibrations of the web of material 4, which under certain circumstances leads to a deterioration in product quality. Specially selected ratios in the fresh air flow do not cause uneven loads in the web of material 4, causing distortion or damage to the relatively thin web of material 4. In the fabric of material 4 there are only loads caused by its own weight, but they are evenly distributed and do not cause any damage.
    Due to the laminar flow distribution and pre-heating of fresh air, and also due to that. that the web of material 4 is not directly blown by hot air, a film is not formed on the wet surface of the resin, preventing the solvent from being released from the resin. This film also contains the solvent in the vapor state, which further leads to the destruction of the surface layer and the formation of needle-like cracks. In addition, the solvent 3 of this film acts as a brake. According to the invention, these phenomena are excluded.
    Optimum conditions are created due to the relatively high throughput at a small height of the working chamber 3, favorable conditions of air exhaust and more: high product quality. These optimal results are partly due to the fact that, as a result of the interaction of heat from radiation and relatively strongly preheated fresh air, unlike the existing methods, on the one hand, the material 4 web is heated more rapidly and. on the other hand, drying takes place from the inside to the outside without film formation, WHICH has been mentioned above, and without the formation of so-called needle-like cracks in the final product. Besides. It is also necessary to mention that the proposed method makes it possible to shorten the residence time in the gel state of the synthetic resin used.
    It is preferable to heat the fresh air to a temperature within the temperature of the heat of radiation. This means that the web of material 4 does not heat up slowly, as has been the case so far. You dreamed that a relatively fast heating of the web of material 4 in combination with other signs of the solution avoids the formation of a surface film.
    For example, fresh air can be heated to 140-180 ° C, preferably up to a temperature of 160 ° C, and the temperature of the radiant heating is 160-200 ° C, preferably 180 ° C.
    In contrast to the prior art, the process is carried out at significantly lower air supply rates. The fresh air feed rate is 1-3 m / s, and the known methods are 10-30 m / s. At the same time, fresh air is supplied in such quantities as to create a three-fourfold safety margin relative to explosive limits.
    For example, since approximately 5% more air is introduced into the working chamber 3 than is vented, there is always a slight pressure in the working chamber 3 compared to the atmosphere. This overpressure contributes to the fact that through the inevitable gaps, for example, at the entrance of the web of material 4 into the working chamber 3 and at its exit from the working chamber 3, cold fresh air does not get into it. This allows uniformity of the drying and polymerization process.
    In the case when the material web passes upwards through the first drying zone 5 and after changing the direction from top to bottom through the second drying zone 7, the material web 4 in the cooling chamber 6 is cooled with outside air before turning. Although this has an effect on a portion of the heating section during the drying process, however, cooling permits an unexpected way to increase the speed of passage of the web of material 4 and to obtain a higher quality. In addition, the treatment process in the second drying zone 7 is improved, in which the web of material 4 is moved from top to bottom. This also reduces the installation height, since the rotation takes place earlier, and as a result, the top-down section is used more intensively.
    According to another modification of the invention, the web of material 4 undergoes
    differential heating width, i.e. a certain temperature gradient is created across the width of the web, so that the drying process proceeds across the width of the web in different ways, which makes it possible to obtain a different flowability across the width of the dried web. In particular, at the edges a flowability can be chosen than in the center of the web.
    0 In addition, it is possible, at high air flow rates, to supply fresh air in at least two different places of the working chamber 3, for example, from where the material web is introduced into the working chamber and in the cooling chamber 6. This leads to the fact that smaller amounts of air are supplied in the respective areas and thus the requirements regarding the flow laminarity are fulfilled.
    The invention solves the problem with the help of the installation, which is characterized by the fact that as a device for heating the web of material, which is in the working chamber 3,
    5 at least one radiating heating element.
    The heating element includes at least one pipelines through which the heating
    0 environment and which is made as a coil mounted on walls 13 and 14 on the working chamber 3. In particular, this heating element is covered by screen 16 on the web side of the material 4, so that the pipes 15 do not protrude inside the working chamber 3. This avoids harmful turbulent eddies in the air flow. In addition, the screen 16 allows to obtain a favorable distribution
    0 heat on the canvas. In accordance with this solution, the pipeline 15 can be placed in the walls 13 and 14 of the working chamber 3, for differentiated drying in the direction of the web of material 4
    5 or in the transverse direction, either a different pitch in the coil in the direction of movement of the web of material 4 or several transverse separate pipelines fed from
    权利要求:
    Claims (4)
    [1]
    0 different sources, which makes it possible to measure the width of the web of material 4 drying conditions and to obtain at the same time different flow width, respectively, different residence time of the resin in the gel state. In addition, with this device, during installation operation, the flowability of the resin can be influenced on the left, in the center or on the right of the web. In accordance with another very significant modification of the invention, the working chamber 3 can be placed in a sealed insulated casing 20 filled with warm air. If in working chamber 3 there exists, for example, a temperature of 180 ° C, then the air temperature in this insulated casing 20 is approximately 80 ° C. Such a structure in the form of a kiln-in-oven has various advantages. The advantage is a higher uniformity and stability of the temperature regime inside the working chamber 3. In addition, it is possible to collect the polluted air flowing out from the working chamber 3 and direct it to the purification device. This meets the requirements for maintaining the purity of the surrounding atmosphere, since relatively small amounts of polluted air are to be cleaned. Claim 1. Method of drying the material web impregnated with thermosetting synthetic resin, by successively moving it from the bottom upwards through the first drying zone, cooling zone and from the top down through the second drying zone, simultaneously blowing the material in the drying zones with simultaneous radiant heating and subsequent partial removal, together with the coolant, of gaseous substances released during the drying process, characterized in that, in order to increase the efficiency and drying process, to blow the heating medium is fed at a rate of 1.51 and 53 m / s temperature ° C ,: 140-180 preferably 160 ° C, and radiant heating temperature was maintained 160-200 ° C, preferably 180 ° C.
    [2]
    2. Device for drying a web of material impregnated with thermosetting synthetic resin, containing an impregnated bath and a working chamber with the first and second drying zones successively placed along the material movement and between them a cooling chamber, connected to the working chamber an air supply device equipped with a heater and regulator the flow rate, and the exhaust air exhaust pipes, and the working chamber in the first and second drying zones is equipped with at least one radiating heating element; nym on both sides of the material to be dried and made as a conduit for passage of heating medium, wherein e o f that. in order to increase the efficiency of the drying process, screens are placed in the first and second zones of drying on both sides of the material being dried, and the heating element is placed between the screen and the walls of the working chamber and is made in the form of separate coils, each of which is connected to an independent source of heating medium.
    [3]
    3. The device according to claim 1, of which it is. that the coils are made with a variable step in the course of movement of the material web.
    [4]
    4. The device according to claim 1, characterized in that the working chamber is additionally enclosed in a sealed insulated casing filled with warm air.
    FIG. 2
    Fig
    /
    L
    g
    2 /
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1715214A3|1992-02-23|Method and device for drying web material impregnated with thermosetting synthetic resin
    CN1058927C|2000-11-29|Method of, and apparatus for, heat treating material web provided with liquid or paste-like preparation
    US4952145A|1990-08-28|Apparatus for the heat treatment and/or drying of a web of material passing continuously through
    US5536158A|1996-07-16|Apparatus for drying solvent based film
    US4135098A|1979-01-16|Method and apparatus for curing coating materials
    US3351329A|1967-11-07|Wire coating oven apparatus
    US2896335A|1959-07-28|Drying of fabrics, papers, cardboards, and other lengthy materials
    KR101256246B1|2013-04-18|Method and installation for coating a metal strip with a coating containing a solvent and for drying and/or cross-linking said coatin
    PT85205B|1995-03-01|APPARATUS FOR THE APPLICATION OF GLASS MATERIAL IN GRANULES TO HIGH TEMPERATURE HOLDERS
    US3403454A|1968-10-01|Heat treating apparatus for web and sheet material
    CA1075871A|1980-04-22|Continuous curing device for longitudinally extended products
    US3235973A|1966-02-22|Heat treating apparatus for sheet or web like material
    IE47077B1|1983-12-14|Heat treatment of fibrous mats
    US3318017A|1967-05-09|Heat treating method and apparatus
    US20090181181A1|2009-07-16|Method and device for powder coating wood substrates
    US3134654A|1964-05-26|High velocity dryer tube
    JPH05192932A|1993-08-03|Thermal treatment of web material and its device
    US5191725A|1993-03-09|Venting system for heat treating flat material webs
    JPS6264532A|1987-03-23|Treating device for striplike matter
    US4534120A|1985-08-13|Dryer for a continuous textile fabric
    GB1586076A|1981-03-18|Apparatus for the continuous printing of textile webs
    SU521439A1|1976-07-15|Dryer
    SU566099A2|1977-07-25|Plant for drying lengthy materials
    SU653318A1|1979-03-25|Apparatus for thermal treatment of textile material
    SU1092340A1|1984-05-15|Method of drying textile material and device for effecting same
    同族专利:
    公开号 | 公开日
    ES541878A0|1985-12-01|
    PL252625A1|1985-11-19|
    DK148285D0|1985-04-01|
    NO851318L|1985-10-03|
    FI82766C|1991-04-10|
    EP0157403B1|1990-01-17|
    PT80204B|1997-04-30|
    FI851305A0|1985-04-01|
    DE3575465D1|1990-02-22|
    FI82766B|1990-12-31|
    EP0157403A3|1986-03-19|
    MD442C2|1996-06-30|
    BR8501502A|1985-11-26|
    IL74742D0|1985-06-30|
    UA7035A1|1995-03-31|
    ES8603062A1|1985-12-01|
    PT80204A|1985-05-01|
    BG44039A3|1988-09-15|
    HU205450B|1992-04-28|
    CS271312B2|1990-09-12|
    DD232320A5|1986-01-22|
    DK167712B1|1993-12-06|
    PL142952B1|1987-12-31|
    YU44686B|1990-12-31|
    HUT41109A|1987-03-30|
    RO92353A|1987-08-31|
    TR22993A|1989-01-05|
    DK148285A|1985-10-03|
    US4697355A|1987-10-06|
    EP0157403A2|1985-10-09|
    MX164488B|1992-08-19|
    CA1236354A|1988-05-10|
    FI851305L|1985-10-03|
    NO163206C|1990-04-18|
    IE56408B1|1991-07-17|
    IE850805L|1985-10-02|
    YU51085A|1987-12-31|
    CS238485A2|1990-02-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3112919A|1960-10-27|1963-12-03|Vac Hyd Proc Corp|Vacuum furnace|
    US3262494A|1963-11-14|1966-07-26|Hupp Corp|Radiant heater having independent sinuous internested tubes|
    US3510960A|1967-06-10|1970-05-12|Hisayoshi Kubodera|Vertical drying machine|
    DE1814461A1|1968-12-13|1970-06-25|Juergen Schulz|Drying device|
    US3584846A|1969-11-14|1971-06-15|Lyle E Mccoy|Heating apparatus for elongate material|
    US3793741A|1972-01-07|1974-02-26|Smitherm Industries|Drying apparatus with moisture profile control|
    GB1351085A|1972-05-10|1974-04-24|Kubodera H|Drying and curing apparatus|
    DE2655972C3|1976-12-10|1980-03-06|Hoechst Ag, 6000 Frankfurt|Process for uniform pre-drying of textile webs|
    DE2735075C2|1977-08-04|1986-03-06|Brückner-Apparatebau GmbH, 6120 Erbach|Device for drying a continuously moving web of material|
    CH629354A|1980-03-06|1982-04-30|DE3811620C2|1988-04-07|1992-05-07|Vits Maschinenbau Gmbh, 4018 Langenfeld, De|
    DE3917627A1|1988-07-01|1990-01-04|Aeg Isolier Kunststoff|Arrangement for drying a product web in a treatment chamber|
    US5263265A|1989-10-23|1993-11-23|Despatch Industries|Convection/radiation material treatment oven|
    CH679931A5|1990-04-18|1992-05-15|Brandwijk Systems Programming|
    EP0508254A1|1991-04-12|1992-10-14|Van Brandwijk Systems Programming B.V.|Process and apparatus for heat treatment of a web having a fluid or paste-like composition applied to it|
    EP0508253A1|1991-04-12|1992-10-14|Van Brandwijk Systems Programming B.V.|Process and apparatus for heat treatment of a web having a fluid or paste-like composition applied to it|
    JP2949121B2|1995-03-13|1999-09-13|桐山義行|Ultraviolet curing method|
    DE19626662A1|1996-07-03|1998-01-08|Abb Research Ltd|Welding device with a heating device for heating thermoplastic fiber composite strips|
    WO1998041376A1|1997-03-17|1998-09-24|Solipat Ag|Method and device for gelification and/or foaming one or two-sided coated strips of material|
    EP0942092A1|1998-03-06|1999-09-15|Solipat Ag|An apparatus for drying and/or polymerizing an impregnated web material|
    TWI275760B|2004-05-13|2007-03-11|Lg Chemical Ltd|Treater oven for manufacturing prepreg|
    CN101676662A|2008-09-18|2010-03-24|株式会社Eco|Short infrared ray radiation drying device|
    CN102384642A|2010-09-02|2012-03-21|河南省杂粮先生食品有限公司|High-temperature efficient energy-saving roller dryer|
    CN102501340B|2011-11-22|2015-02-25|上海凡顺实业有限公司|Energy-saving implementation method applied to preparing composite materials by means of vertical drying and curing|
    FR2994201B1|2012-07-31|2014-08-08|Saint Gobain Isover|PROCESS FOR COOKING A CONTINUOUS MATTRESS OF MINERAL OR VEGETABLE FIBERS|
    JP2014104440A|2012-11-29|2014-06-09|Nitto Denko Corp|Method and device of producing photo-reaction product sheet|
    FR3026044B1|2014-09-18|2017-06-23|Centre Technique Des Ind Mec|HOT-SHAPING PROCESS OF THERMOPLASTIC MATERIAL AND INSTALLATION FOR IMPLEMENTING THE SAME|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP1984048636U|JPS6333116Y2|1984-04-02|1984-04-02|
    JP4863584U|JPS60159993U|1984-04-02|1984-04-02|
    [返回顶部]