GRATE ELEMENT

A grate element (1) for a grate surface, e.g. in clinker cooler, comprises a top plate (5) which is shaped in the form of a box having a surface which is plane at one end, whereas at the other end it consists of in cross section downwardly curved slats (6) which, between them, form slots (9). The gr...

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Bibliographic Details
Main Authors BENTSEN, BO, MASSARO, MICHAEL, ROBERT
Format Patent
LanguageEnglish
French
Published 14.04.1994
Edition5
Subjects
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Summary:A grate element (1) for a grate surface, e.g. in clinker cooler, comprises a top plate (5) which is shaped in the form of a box having a surface which is plane at one end, whereas at the other end it consists of in cross section downwardly curved slats (6) which, between them, form slots (9). The grate element further comprises a corrugated bottom plate (7) which is provided with longitudinal rows of slots (11) and projections (13) rising into the slots of the top plate (9), and gas channels (3) which are defined by the underside of the slats of the top plate (5) and the upper side of the bottom plate (7), and open at the slots (9, 11) in the two plates (5, 7). Hereby it is obtained that the top plate of the grate element is effectively cooled, that the pressure loss through the grate element is appropriately large, that the grate element is protected against falling-through of material and that maintenance work in connection with the replacement of grate elements is facilitated. Elément de grille (1) pour une surface de grille, par ex. dans un refroidisseur de clinker, qui comporte une plaque supérieure (5) ayant la forme d'une boîte dotée d'une surface plane sur une face, tandis que l'autre face est constituée de lames (6) incurvées vers le bas en coupe transversale qui, entre elles, forment des rainures (9). L'élément de grille comporte en outre une plaque inférieure ondulée (7) dotée de rangées longitudinales de rainure (11) et de parties saillantes (13) qui pénètrent dans les rainures de la plaque supérieure (9), et des canaux de circulation de gaz (3) qui sont limités par la face inférieure des lames de la plaque supérieure (5) et la face supérieure de la plaque inférieure (7) et sont ouverts sur les rainures (9, 11) dans les deux plaques (5, 7). Cela permet d'obtenir un refroidissement efficace de la plaque supérieure de l'élément de grille, une perte de pression suffisamment importante à travers l'élément de grille et la protection de l'élément de grille contre les matériaux qui pourraient passer à travers et cela facilite le travail de maintenance concernant le remplacement des éléments de grille.
Bibliography:Application Number: WO1993EP02600