The invention relates to a method for fitting or retrofitting a sinter cooler (1), which sinter cooler (1) comprises a cooler grate chain with an endless chain of cooler cars (2). In order to provide means for increasing the effectiveness of the sinter cooler, the invention provides that the method for fitting comprises, for at least one cooler car (2), installing a lamella grate (10) for holding sinter material and allowing air flow through the grate so that a support structure (13) is connected to the cooler car (2) and a plurality of lamellae (12) are supported by and individually movable with respect to the support structure (13), and are disposed to allow air flow between neighbouring lamellae (12). The support structure (13) comprises at least one support element (14) disposed underneath the plurality of lamellae (12) to support the plurality of lamellae (12), and at least one downholder (15) that is adapted to limit an upward motion of at least one lamella (12) is installed such that at least a portion of the downholder (15) is disposed above the at least one lamella (12). In case of retrofitting a sinter cooler (1) comprising a rigid grate (5) for holding sinter material, the method for retrofitting further comprises removing the rigid grate (5) before installing the lamella grate (10).

A cooler for cooling bulk material, such as cement clinker, for example, may include an aeration floor through which cooling gas can flow. The aeration floor may be configured to receive bulk material and to transport the bulk material in a conveying direction. The aeration floor comprises a plurality of conveying beams that are mounted so as to be movable in the conveying direction and counter to the conveying direction. A seal is mounted between two adjacent conveying beams, and the seal has at least two sealing elements mounted so as to be movable relative to one another. The sealing elements each have a sealing profile, which interact with one another such that a sealing gap is formed between them. The sealing gap has a double or multiple U-profile.

A method for fitting or retrofitting a sinter cooler, which sinter cooler has a cooler grate chain with an endless chain of cooler cars, the method including, installing a lamella grate for holding sinter material and allowing air flow through the grate so that a support structure is connected to the cooler car and a plurality of lamellae are supported by and individually movable with respect to the support structure, and are disposed to allow air flow between neighbouring lamellae, where the support structure has at least one support element disposed underneath the plurality of lamellae to support the plurality of lamellae, and at least one downholder that is adapted to limit an upward motion of at least one lamella installed such that at least a portion of the downholder is disposed above the at least one lamella.

Embodiments of the invention relate to a grate bar front section and a matching grate bar rear section and to a grate bar including the grate bar front section and/or the grate bar rear section configured such that, by releasably connecting the grate bar front section to the grate bar rear section, manufacture and maintenance costs are reduced.

Embodiments of the invention relate to a grate bar front section and a matching grate bar rear section and to a grate bar including the grate bar front section and/or the grate bar rear section configured such that, by releasably connecting the grate bar front section to the grate bar rear section, manufacture and maintenance costs are reduced.

A grate bar (for forming a plank of a conveyor grate for transporting bulk material) includes at least an up-facing surface for supporting bulk material, a down-facing surface for supporting the grate bar on at least one grate bar rest, front end and rear-end sides, first and second profiled narrow sides. The first and second profiled narrow sides are complementary to one another and form a moving gap therebetween if and/or when the first profiled narrow side of the chosen grate bar is positioned adjacent to the second profiled narrow side of a neighboring grate bar (that is identical to the chosen grate bar at least with respect to the profile of the second profiled narrow side). The grate bar can be easily replaced if a front edge between the up-facing surface and the front-end side has a front edge curvature, a rear edge between the up-facing surface and the rear-end side has a rear edge curvature and the rear edge curvature is complementary to the front edge curvature.

A grate bar (for forming a plank of a conveyor grate for transporting bulk material) includes at least an up-facing surface for supporting bulk material, a down-facing surface for supporting the grate bar on at least one grate bar rest, front end and rear-end sides, first and second profiled narrow sides. The first and second profiled narrow sides are complementary to one another and form a moving gap therebetween if and/or when the first profiled narrow side of the chosen grate bar is positioned adjacent to the second profiled narrow side of a neighboring grate bar (that is identical to the chosen grate bar at least with respect to the profile of the second profiled narrow side). The grate bar can be easily replaced if a front edge between the up-facing surface and the front-end side has a front edge curvature, a rear edge between the up-facing surface and the rear-end side has a rear edge curvature and the rear edge curvature is complementary to the front edge curvature.

A clinker inlet distribution grate for feeding a conveyor grate with clinker, previously discharged from a kiln onto the clinker inlet distribution grate wherein the clinker inlet distribution grate comprises at least a chute with at least two grate elements being arranged one besides the other providing a chute enables to easily remove clinker agglomerations, so called snowmen if at least a first of said at least two grate elements is static and that at least a second of said at least two grate elements is movable orthogonally to the cross direction of the chute.

A grate plate used in a grate cooler for bulk material, comprising a first region alternately covered by a further grate plate during use and having at least one pocket for holding bulk material as an autogenous wear protection layer, and a second region not covered during use, and also having at least one bulk material pocket and at least one cooling air opening leading to a grate plate underside. The height of the first region pockets is smaller than the second region pockets height. The base of the first region pockets is formed by multiple segments having upper surfaces as bulk material contact surfaces and between which gap-like cooling air channels are formed. Openings of the cooling air channels are oriented at an angle to vertical, such that an acute angle occurs between the conveying direction and the direction of the cooling air flow via these openings.

A clinker inlet distribution grate for feeding a conveyor grate with clinker, previously discharged from a kiln onto the clinker inlet distribution grate wherein the clinker inlet distribution grate comprises at least a chute with at least two grate elements being arranged one besides the other providing a chute enables to easily remove clinker agglomerations, so called snowmen if at least a first of said at least two grate elements is static and that at least a second of said at least two grate elements is movable orthogonally to the cross direction of the chute.