摘要:
The present invention relates to a rollers cleaning device (100) comprising: a support frame (1), cleaning means (2) supported by the frame (1) so as to be movable with respect to the frame (1) and configured so as to be put in contact with the rollers (20) and to clean the outer surface thereof; one or more locking means (10) configured so as to fix the frame (1) in a predetermined position with respect to the rollers (20), while the rollers (20) are moved; the locking means (10) are configured so as to be moved vertically with respect to the frame (1). Moreover, the present invention relates to a rollers cleaning method.
摘要:
After molten metal has been poured from a ladle 6 into a converter, metal 6b adhering to the ladle 6 is dropped into the ladle 6 on-line, and molten metal is poured from an electric furnace into the ladle 6 into which the metal 6b has been dropped. As a result, the metal 6b is melted and is recovered as a material.
摘要:
The invention concerns a demolition arrangement for a remote-controlled working machine (1 ) equipped with a manoeuvrable arm (9), which machine, electrically powered and able to be driven on tracks (17), is principally intended for destruction and demolition work through the demolition processing with an impact tool (50) that operates through a hydraulically powered hammer (32) and where an operator walking next to the machine controls its various movements with a remote-control unit (4), which machine has a chassis (5) with an upper part (6) that is mounted in bearings on a lower part (7) in a manner that allows rotation for the rotation of the upper part in a horizontal plane around a vertical axis (8), whereby the manoeuvrable arm is supported at the upper part and including a series of arm parts (10, 1 1, 12) mutually joined to each other and that can be manoeuvred in a vertical plane by associated hydraulic cylinders (13, 14, 15), a link system (20) arranged at the free end of the arm that can be adjusted by means of a hydraulic cylinder (29) and designed as a combination of a coupling arrangement (21 ) for the attachment of a tool and a tilt or demolition arrangement (22) for the controlled oscillation around the centre of an axis (23) at the free end of the manoeuvrable arm of an impact tool inserted into the hammer. In order to make the work of demolition efficient, a rotary joint (35) is arranged at one of the arm sections (12) that are a component of the manoeuvrable arm (9), which rotary joint allows, through the influence of a rotator (36) a forward arm subsection (12:2) of the arm section, on which arm subsection the link system (20) is located, to place the end of the impact tool (50) that is located farthest forward against a working point in space though the forward arm subsection (12:2) being rotated around the longitudinal axis (A) of the arm section (12).
摘要:
Bei einer Tragrollenwechselvorrichtung (18) zum Wechseln einer Tragrolle (2) eines Rollenherdofens (1), aufweisend: ein abdichtbares Gehäuse (16) mit einer Schleuse (17), über die ein Zugang unter Ausschluss der Umgebungsatmosphäre auf eine zu demontierende Tragrolle (2) des Rollenherdofens (1) vom Inneren des Gehäuses (16) aus möglich ist, und wenigstens eine zum Demontieren und Montieren von Tragrollen (2) ausgebildete Tragrollenhandhabungsvorrichtung (15, 15'), die in dem Gehäuse (16) verfahrbar angeordnet ist, soll eine Lösung geschaffen werden, durch die ein Tragrollenwechsel möglich ist, ohne dass Staub und Faserreste in der Öffnung des Rollenherdofens vorhanden sind, wenn eine neue Tragrolle eingesetzt bzw. montiert wird. Dies wird dadurch erreicht, dass eine zum Reinigen einer in einer Seitenwand (8) des Rollenherdofens (1) ausgeformte Öffnung (19), durch die hindurch eine Tragrolle (2) in den Rollenherdofen (1) einbringbar und herausnehmbar ist, ausgebildete Reinigungsvorrichtung (20) innerhalb des Gehäuses (16) angeordnet ist.
摘要:
Direct reduction process and plant for producing DRI comprising a reduction reactor and at least one reducing gas heater typically comprising a convective heating section and a radiant heating section for raising the reducing gas temperature to a level adequate for iron oxides reduction to metallic iron, typically above 850° C., wherein the reducing gas fed to the reduction reactor comprises a stream of reducing gas recycled from the reduction reactor and a make-up stream of coke oven gas containing carbon compounds which may form carbon deposits in the heating path of said heater, namely BTX and other complex carbon compounds. The heater is provided with means for feeding oxidizing agents, for example steam, steam and air and/or oxygen at predetermined heating tubes successively for eliminating the carbon deposits which may form inside the heating tubes of said heater without interrupting the operation of the plant. The make-up stream of cold COG can be combined with the recycled gas at a point in the gas heating path of the heater where the tubes have a skin wall temperature of at least 700° C., or when the mixture of recycled gas and COG is at a temperature above 700° C. for minimizing clogging or fouling of heating equipment.
摘要:
The invention relates to a flexible and foldable thin-walled container (20) which can be inflated by means of an explosive mixture and which comprises a wall (22) having an inlet opening (25), surrounding an interior space (21) for the explosive mixture. The thin-walled container (20) is designed for use in a method for removing by blasting technology deposits from the surfaces of cavities of containers to be cleaned. The wall (22) of the thin-walled container (20) is designed, at least in sections, such that when an explosive mixture present in the interior space (21) of the thin-walled container (20) explodes, particles (24) are released which, accelerated by the blast, are suitable to act upon deposits in the interior space of a container and to remove at least part thereof.
摘要:
The invention relates to a device (1) for cleaning installations (2), in particular incinerators, scrubbers, and silos, comprising a first arm (3) containing or carrying at least one explosive and connected to a second arm (5) for manipulating the first arm (3) inside an installation (2). The second arm (5) comprises two or more parallel elongated elements (6) interconnected at a plurality of longitudinal positions.