摘要:
When drying a web-formed material (1), preferably glass fibre, the web-formed material is passed, in contact with a gas-permeable dryer screen (3), through a drying plant (21). One or more fans (27) blow hot process air against, and through, the web-formed material (1) in order to dry it. A chamber (27a), surrounding the fan or the fans (27), has a limiting surface that is essentially parallel to the surface of the web-formed material. This limiting surface has an opening (29a) that extends essentially across the whole width of the web-formed material (1). A distributing member (20), in the form of an arcuate perforated, sheet-formed element (90), placed outside the chamber (27a), covers the opening (29a) completely. With the distributing member (20) a first flow of process air is divided into a large number of jets, distributed over essentially the whole of the angular area that faces the web-formed material (1). Thereafter, the jets are allowed to mix with one another again to form a second flow of process air, which is passed through a flat perforated, sheet-formed element (2a) that is positioned close to and extends over essentially the whole of the web-formed material (1), and then against and through the web-formed material (1) lying on the gas-permeable dryer screen (3).
摘要:
The invention relates to a method for drying preferably plate-shaped products containing water in a multistage continuous dryer as well as such a dryer for carrying out said method. The invention is characterized in that humid air accumulated below the housing (2) in a dryer of said type is sucked off and is conveyed into the suction zone (12) of the axial fans (9) located in the lower stages, whereupon humid air is admixed in a differentiated manner to an amount of drying air and is delivered to the nozzle boxes (5) of the dryer.
摘要:
Bei einer Anlage zur kontinuierlichen Behandlung von textilen Warenbahnen sind zwischen parallel nebeneinander angeordneter Transportwalzen (15) Luftzuführdüsen (9) in Düsenkästen (10) eingesetzt. Die Düsenkästen (10) sind mittels zu den Achsen der Walzen (15) parallel liegenden Rollen (23) auf den Peripherien (25) der Walzen (15) abgestützt. Die Düsenkästen (10) lassen sich axial aus der Anlage (1) herausziehen.
摘要:
A micropore drying apparatus having a variable wet flow resistance. The flow resistance preferably decreases in the machine direction. The micropore drying apparatus may comprise a single integral unit having a decreasing wet flow resistance from the beginning to the end of the unit. Alternatively, the micropore drying apparatus may comprise a plurality of discrete units, each unit having a successively lesser flow resistance than that of the preceding unit. Alternatively, a hybrid arrangement may be used wherein each discrete unit has a successively decreasing flow resistance within that unit. The micropore drying apparatus may comprise one or more micropore drying media. The micropore drying media have pores which allow air flow therethrough. The pores are disposed in a grid, to form a field of pores. The decreasing flow resistance may preferably be provided by adjusting one or more of said pores, which affect the flow resistance through a single pore or through the entire field of the pores.
摘要:
The present invention relates to an industrial drier (1) for drying a piece of fabric (140). It comprises a heating chamber (100) which, in turn, comprises an air conditioning system (110). The drier further has a moving system (120) for the fabric (140) comprising at least two conveyor belts (121.b, 121.c) and means for moving (124) the conveyor belts (121.b, 121.c). The belts define a pathway (141) developing along the heating chamber (100). Each of the moving means (124.b) is dedicated to an individual conveyor belt (121.b) and is suitable to move that conveyor belt (121.b) independently of any other conveyor belt (121.c).
摘要:
A through-air dryer is disclosed. The through-air dryer includes a cylindrical deck (26) made from a plurality of deck plates (70) that support a throughdrying fabric (24). The deck plates are supported by opposing hubs (52,54). Each of the hubs is in communication with a bearing (72,74) that is mounted to a stationary shaft (50) for allowing the cylindrical deck and the hubs to rotate. The bearings are positioned so as to create a through-air dryer structure that remains stable during operation and allows for easy calculation of loads on the dryer.
摘要:
Disclosed are a device and a method for compacting a continuously conveyed fiber composite (V) by means of heat (W) impingement. A heated treatment medium (L) is blasted towards the fiber composite (V) by means of at least one nozzle arrangement (2a, 2b). Said nozzle arrangement (2a, 2b) comprises a plurality of adjacent blasting nozzles (4) which are disposed at a distance (a) from each other. An intermediate space (5) is formed between two adjacent nozzles (4). Said intermediate space (5) between blasting nozzles (4) is essentially closed to the fiber composite (V) counter to the conveying path (F) such that an overpressure (P) can be created in a pressure chamber (6) located between the nozzle arrangement and the surface (O) of the fiber composite (V), whereby the treatment medium (L) can be blasted through the entire thickness of the fiber composite (V) even when said fiber composite has a great thickness.
摘要:
Eine Vorrichtung zum Führen einer zu trocknenden Faserstoff-Bahn zusammen mit einem porösen Stützband (15) durch eine Trockenvorrichtung, mit einer Anordnung zum Führen der Bahn und des Stützbandes (5) auf einem im wesentlichen geraden Laufweg von einem heizbaren Trockenzylinder (11), der auf einem Teil seines Umfangs von der Bahn und dem Stützband umschlungen wird und dabei die Bahn berührt, zu einer Umlenkwalze (10), die auf einem Teil ihres Umfangs vom Stützband umschlungen wird und dabei das Stützband berührt, zu einem weiteren Trockenzylinder (12), einem in dem Zwickel zwischen den Trockenzylindern (11,12) und der Umlenkwalze (10) angeordneten, an einen Absaugkanal (18) angeschlossenen Saugkasten (14), der im Bereich der Ablaufstelle (A) vom ersten Trockenzylinder (11) eine Pick-up-Zone aufweist, welche durch eine vor der Ablaufstelle (A) gelegene, sich quer zur Bahnlaufrichtung erstreckende erste Dichtleiste und eine nach der Ablaufstelle gelegene, sich quer zur Bahnlaufrichtung erstreckende zweite Dichtleiste (36) begrenzt und an einen Absaugkanal (3) angeschlossen ist, zeichnet sich dadurch aus, dass die Pick-up-Zone mit einem höheren Unterdruck beaufschlagt ist als der Saugkasten (14).
摘要:
A device (10) for drying rotary cut wood veneer comprises at least two conveyor loops (11) facing each other along an outbound path to define between them a conveyance passage for the rotary cut veneer. Along the outbound path are present drying means (18) acting on the conveyance passage. The two conveyance loops comprise conveyance chains (13) supporting transversely to the direction of conveyance a sequential jointed plurality of rigid elements (12) providing facing and essentially unbroken conveyance surfaces along said outbound path to delimit the conveyance passage.
摘要:
A method and an apparatus for treating a fibre product containing a thermocuring binder wherein oppositely directed gas streams are introduced into the fibre product opposites sides thereof in at least one zone from and wherein the gas streams introduced into the fibre product leave the fibre product on the same side as and in zones which are adjacent to the zones into which the gas streams are introduced into the fibre product.