• 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:
    In a group of drying cylinders constituting of a multiple cylinder dryer for drying a paper web or another equivalent product, having a drying felt or drying wire which is common for all drying cylinders of the particular group, arrangements serving to eliminate the need of the web to travel unsupported between drying cylinders and also to eliminate the objectionable feature of arrangements of prior art, where a single drying felt or drying wire has been provided for all cylinders of the group, namely, that on every second drying cylinder the web is not interposed between the cylinder surface and the felt or wire but, instead, the felt or wire intervenes between the web and cylinder. The invention is particularly, characterized in that by the aid of guiding rollers or equivalent the drying felt or wire, together with the web, has been guided to travel from one drying cylinder to the next cylinder in the same group so that the drying cylinders all lie outside the drying felt or wire loop, thus causing the web to travel between the surface of the drying cylinder and the drying felt or wire in every instance. The drying cylinders may be disposed in one or several rows, preferably substantially parallel, the web being conducted from the last cylinder in one row to the next drying cylinder row. Various preferable placements of the guiding rollers with reference to the drying cylinders are specified. It is further suggested that the space formed within the felt or wire loop is enclosed by means of side walls and a vacuum is maintained in this space, in which case it is advantageous to make the guiding rollers foraminous, whereby they are able to operate as traverse flow dryers, and possibly to provide them with blowing hoods, which may contain a heat source.
    公开号:SU712044A3
    申请号:SU731970916
    申请日:1973-11-12
    公开日:1980-01-25
    发明作者:Соининен Маури；Копонен Мартти；Холопайнен Веса
    申请人:Валмет Ой (Фирма)；
    IPC主号:
    专利说明:

    I
    The invention relates to drying equipment, in particular multi-fluid dryer for belt material, and can be used in the woodworking and paper industry.
    Multi-cylinder dryers for belt material are known, which contain a device for transporting material, heated rotary cylinders and guide rolls made perforated and used to dry the material (1).
    Closest to the proposed technical entity is a myogylindrical dryer for tape material, which contains a device for transporting material along a zigzag path, made in the form of an endless belt forming a closed loop, and heated or rotating 1 or outside the circuit in one row (2 | .
    A common disadvantage of the known dryers is that there are strong air flows between the cylinders, which create airflow (curtain cracks, frequent fuvioTii breaks, and refueling pressure).
    The aim of the invention is to increase the productivity and quality of the drying.
    This is achieved by the fact that, in the proposed dryer, between the cylinders inside a contour formed by an endless conveyor belt, there are guide rollers whose axes are to the price range outside the planes passing through the axes of the cylinders. The guide rolls can be made perforated and the axes of the guide rolls are located outside the planes tangent to the surface of the cylinders.
    FIG. 1 shows schematically the proposed multi-cylinder dryer with the arrangement of the axles of the single-flush rolls for
    5 outside planes passing through the axes of the cylinders; in fig. 2 dryer with perforated guide rollers.
    权利要求:
    Claims (2)
    [1]
    The dryer contains heated rotating cylinders I, 2, 3, 4, 5, and 6, guide rolls 7, HKG-congmy grain spore, entu 8, recirculated, for example, from drying felt, n; and zhpyg sue 1, conveyor 10, podakini HMcyiiiMn; io ioo no. exactly 1 I to su111I. In addition, the pipes 12 and the casing 13 for drying the web, the exhaust ventilation system including the suction pipe 14 with the fan 15, and the device 16 for filling the web into the dryer. The dried web, when it enters the heated cylinders, from the conveyor 10 all the way through the dryer, is tightly supported by a belt 8, which eliminates the possibility of web breaks. The passage is successively through heated rotating cylinders; the web is gradually dried. At the same time, the arrangement of the guide rolls outside the planes passing through the axes of the cylinders or tangent to them provides the maximum circumference of the heating surface of the cylinders and convenient filling of the web between the cylinders and the conveyor belt. Claim 1. Multi-cylinder dryer for belt material, mainly paper web, containing a device for transporting material along a zigzag path, made in the form of an endless belt forming a closed loop, and heated rotating cylinders placed outside the circuit in at least one row, characterized in that, in order to increase the productivity and quality of drying, between the cylinders inside the contour are located the guide rolls, whose axes are placed outside the area of bones, passing through the cylinder axis. 2. A dryer according to claim 1, characterized in that the guide rollers are perforated. 3. Dryer according to claim I, characterized in that the axes of the guide rolls are located outside the planes tangent to the surface of the cylinders. Sources of information taken into account in the examination 1. US patent number 3283415, cl. 34-111, 1964.
    [2]
    2. US patent number 3084447, cl. 34--115, 1960.
    2
    类似技术:
    公开号 | 公开日 | 专利标题
    SU712044A3|1980-01-25|Multicylinder dryer for tape material
    US3110575A|1963-11-12|Porous belt drying apparatus
    US3303576A|1967-02-14|Apparatus for drying porous paper
    SE8400927L|1984-09-02|POCKET VENTILATION DEVICE FOR A PAPER MACHINE MULTI-CYLINDER DRY
    GB1426248A|1976-02-25|Drying apparatus
    US2344686A|1944-03-21|Paper drier and method
    US6128833A|2000-10-10|Dryer-section concept and method in the drying of a paper/board web
    SE9002240L|1991-01-08|DEVICE FOR DRYING A MATERIAL COAT
    US3337968A|1967-08-29|Dryer section pocket ventilation
    FI57457B|1980-04-30|CYLINDERTORK FOER PAPPERSMASKIN
    US3576078A|1971-04-27|Paper drying process and apparatus
    US1470953A|1923-10-16|Paper-making machine
    GB1153038A|1969-05-21|Improvements in or relating to the Drying of Flexible Material such as Paper and Board Formed from Cellulosic Fibrous Materials
    US6237248B1|2001-05-29|Convection drier and method of use for manufacturing a material web
    GB1153387A|1969-05-29|A Method and Means for the Ventilation of a Cylinder Dryer.
    GB1281351A|1972-07-12|Process and apparatus for the manufacture of paper or bonded fibre fabric
    US2061976A|1936-11-24|Process and apparatus for the drying of travelling webs
    US5522151A|1996-06-04|Single tier dryer section with dual reversing rolls
    US4212113A|1980-07-15|Apparatus for drying an air-borne web
    US2929153A|1960-03-22|Drying apparatus for sheet material
    US2616188A|1952-11-04|Web drying apparatus
    US1656853A|1928-01-17|Paper machinp
    US3634948A|1972-01-18|Drying apparatus for papermaking
    US3445938A|1969-05-27|Ventilation system for a papermaking machine
    US2981007A|1961-04-25|Willow drier
    同族专利:
    公开号 | 公开日
    US3868780A|1975-03-04|
    DE2355397A1|1974-06-12|
    PL91256B1|1977-02-28|
    CA1015154A|1977-08-09|
    GB1426067A|1976-02-25|
    IT1001739B|1976-04-30|
    FI53333B|1977-12-30|
    FI53333C|1978-04-10|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI3174/72A|FI53333C|1972-11-13|1972-11-13|TORKNINGSCYLINDERGRUPP I EN FLERCYLINDERTORK FOER EN MATERIALBANA I SYNNERHET FOER PAPPER|
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