Abstract:
Die Erfindung betrifft eine Bandschleuse (1 ) zur Abdichtung eines ersten Raumes (2) gegenüber einem zweiten Raum (3), wobei beide Räume (2, 3) von einem Band (4), insbesondere einem Metallband, passiert werden, wobei zur Abdichtung der Räume (2, 3) mindestens zwei Rollen (5, 6) vorgesehen sind, die sich beidseitig des Bandes (4) dichtend an dieses anlegen. Um eine verbesserte Dichtwirkung zu erreichen, sieht die Erfindung vor, dass mindestens eine Rolle (5, 6) in einem ihrer axialen Endbereiche (7) ein Dichtelement (8) aufweist, das zur seitlichen Anlage an die Bandkante (9) des Bandes (4) ausgebildet ist, wobei Einstellmittel (10) vorgesehen sind, mit denen die Rolle (5, 6) samt Dichtelement (8) in axialer Richtung (a) positioniert werden kann.
Abstract:
A sealing device used for preventing the risk of explosion or fire caused by the electrostatic spark occurring at the sealing section of doorway of a partition using flammable gases liable to cause explosion or fire in a continuous annealing furnace for conducting bright annealing or nonoxidative annealing of metal strips, continuous coating equipment, and the like, and for preventing the surface of a strip from being scuffed or scratched. The device is provided in the sealing section and comprises a combination of metallic sealing pieces (16), elastic pads (17) provided on the surface of each piece (16), and elastic rotating rolls (18) pressed against a metal strip (1) and the pads (17). The pad (17) has a surface resistivity of 10 -10 OMEGA .cm and is made of a carbon-containing fiber, a chemical fiber made from polypyrrole, which is a conductive polymer with a conjugated electron system, a fiber prepared by treating an acrylic fiber with a copper (II) compound and a sulfur compound, or a conductive nonwoven fabric mainly comprising these fibers.
Abstract:
Die Erfindung betrifft eine Bandschleuse (1 ) zur Abdichtung eines ersten Raumes (2) gegenüber einem zweiten Raum (3), wobei beide Räume (2, 3) von einem Band (4), insbesondere einem Metallband, passiert werden und wobei zur Abdichtung der Räume (2, 3) mindestens ein Dichtmittel (5) vorgesehen ist. Um in einfacher Weise eine gute Dichtwirkung zu erreichen, sieht die Erfindung vor, dass das Dichtmittel (5) mindestens zwei relativ zueinander verschiebliche Blendenelemente (6, 7, 8, 9) aufweist, die zumindest eine Dichtfläche (10, 11, 12, 13) haben, die der Randkontur des abzudichtenden Bandes (4) angepasst ist.
Abstract:
In order to reduce as much as possible a leaking quantity of a furnace gas from between a flexible seal pad (5) and a flexible rotary roll (6) of a seal apparatus (2) at a zone outlet/inlet of a heat-treatment furnace using a reducing atmosphere gas containing a hydrogen gas for conducting heat-treatment such as annealing, stain relieving annealing, etc., under the state where an oxide film is not formed on the surface of a metal strip, and to stably secure excellent sealability for an extended time, the present invention disposes a plurality of sets of pressing mechanisms (7) operated from outside a side plate (3a) of a furnace wall (3) in an axial direction of the flexible rotary roll (6), and presses only the necessary portion of the flexible seal pad (5) in the direction of the flexible rotary roll (6) from the inner side of the furnace by the press member (7b) of the pressing mechanism (7) through a seal plate (4), so as to positively close only the portion, from which the furnace gas leaks, between the flexible seal pad (5) and the flexible rotary roll (6). The present invention constitutes the surface layer portion of the flexible seal pad (5) by a material satisfying a limiting oxygen index LOI value of at least (26) and outer surface of the flexible rotary roll (6) preferably by a specific flexible member having heat-resistance so as to prevent the drop of the sealability even when a fire develops in the proximity of the seal apparatus (2) for a short time.
Abstract:
A sealing device for a vessel (12) to achieve a fluid-tight seal in an aperture (14) made in the lateral wall (18) of said vessel (12), into which aperture (14) a shaft (11) is inserted. The sealing device comprises first sealing means (24) disposed in contact with the shaft (11) in the zone of said aperture (14), and second sealing means, comprising a containing body (22) and a flexible connection element (43). The first sealing means (24) comprise a plurality of sealing rings (25), disposed coaxial to the shaft (11) and in contact with the latter, and a containing tube (32) to contain the sealing rings (25). The lateral wall (18) of the vessel (12) comprises an interface flange (17). A closing flange (37) is connected to the interface flange (17) and to a flanged end (23) of the containing body (22) by means of attachment means (47, 48) and is positioned in contact with the containing tube (32) and with the flexible connection element (43) to keep the first sealing means (24) in a determinate axial position with respect to the shaft (11).
Abstract:
A shielding device, and a device for distributing charging material into a furnace or reactor enclosure are disclosed. A charging chute for directing material into the enclosure is movable relative to the enclosure throughout a distribution trajectory, and a housing defines an aperture, the aperture receiving the chute, the chute and the housing defining at least one excursion channel from the enclosure. A chute shielding means comprises a plurality of shielding elements arranged to block the excursion channel such that at any given point in the trajectory of the chute, at least one of said elements spans a portion of the excursion channel.
Abstract:
A continuous pusher furnace (10) includes a product carrier (36) assembly forming a traveling gas barrier. The product carrier (36) assembly comprises a pusher plate (38) disposed to receive product thereon and a gas barrier (46) extending upwardly from the pusher plate. The perimeter of the gas barrier is sized and configured to fit within a vestibule (22) between heating chambers in the furnace with a clearance gap (54) with the vestibule selected to increase a gas flow velocity through the vestibule (22) sufficient to overcome a gas diffusion velocity through the vestibule in a direction opposite to the gas flow. In this manner, gas is unable to diffuse into an upstream heating chamber. In an alternative embodiment, an exhaust outlet (60) may also be provided in the vestibule or chamber to exhaust gas from upstream and downstream heating chambers from the furnace.
Abstract:
The invention is directed to improving a sealability on end surfaces of elastic rolls and reducing a rotating load. A sealing device (20) is provided for gastightly sealing outlet/inlet of a bright annealing furnace (22) with respect to a metallic web (21). The metallic web (21) is held on both side thereof between a pair of elastic rolls (23) so that it can pass therebetween while being gastightly sealed thereby. Provided between end surfaces of the elastic rolls (23) and a side wall (26) of a casing (25) are skin members (34) and end surface sealing members (39), which are formed of an elastic material, for positive sealing. Provided between the skin members (34) and the end surface sealing members (39) are first support members (35), second support members (36), outer bearings (37) and inner bearings (38), all of which made from a rigid material, to attain reduction of a rolling load.