The wear on the spiral entry of raw coal bunkers is effectively reduced in that beneath the discharge drum 2 and before the entry chute 3 a collecting table 1 having defining walls raised at the sides and on the rear is arranged in an approximately horizontal or slightly inclined position. This collecting table is formed so that according to inclination it can retain larger or smaller quantities of loose bulk material, but in any case can preserve a natural slope which ensures a regular introduction, at reduced speed, of the bulk material into the spiral chute. Such a collecting table is especially well adapted to regularise the charging of the spiral entry from several conveyor belts, while a load- dependent controlling of the inclination of the collecting table is possible by association of a belt balance 14 with the conveyor belt or belts. IMAGE
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