Charging device, especially charging stock preheater

F - Mech Eng,Light,Heat,Weapons – 27 – D

Patent

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Details

F27D 13/00 (2006.01) F27D 3/04 (2006.01) F27D 3/06 (2006.01)

Patent

CA 2546473

To facilitate a trouble-free charging of scrap metal having differing constitution such as light and heavy scrap metal, from a lower discharge opening of a shaft- shaped charging device (1) into a melting vessel by a pusher (13), the lateral surface of the pusher (13) are formed so as to converge from the upper side to the lower side and the actuating device (2) of the pusher (13) is pivotably supported in a frame structure (3) about a horizontal axis. In addition, the upper boundary of the discharge opening for the charging stock from the shaft (2) is formed by a horizontal, rotatably supported roller (26), preferably with engaging elements (30) distributed on the circumferential surface. Sections of the charging, device that are severely mechanically stressed are formed by steel billet sections connected to form a structural unit. Preferably, the charging device is formed as a charging stock pre-heater.

L'invention vise à permettre un chargement aisé de ferrailles de différentes compositions, comme de la ferraille légère et de la ferraille lourde, issues d'un orifice de sortie inférieur d'un dispositif de chargement (1) en forme de puits et délivrées à une cuve de fusion par l'intermédiaire d'un coulisseau (13). A cet effet, les surfaces latérales du coulisseau (13) convergent de la face supérieure à la face inférieure et le dispositif d'actionnement (2) du coulisseau (13) est monté pivotant autour d'un axe horizontal dans une structure cadre (3). En outre, la délimitation supérieure de l'orifice de sortie de la charge cédée par le puits (2) est formée par un rouleau (26) horizontal qui est monté pivotant et présente, de préférence, des éléments entraîneurs (30) distribués sur sa surface circonférencielle. Des sections du dispositif de chargement, fortement sollicitées mécaniquement, sont constituées de sections de billettes d'acier reliées à une unité structure. De préférence, le dispositif de chargement est réalisé sous la forme d'un dispositif de préchauffage de la charge.

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