The present application discloses a grate bar for a thrust grate of a furnace. The grate bar comprises an elongated recess (43) at a first side of the grate bar. The elongated recess comprises two parallel sliding surfaces which are oriented in longitudinal direction of the grate bar. An engaging element (38) is provided at a second side of the grate bar, which is opposite to the first side. The engaging element comprises two parallel sliding surfaces which are oriented in longitudinal direction of the grate bar. The elongated recess is shaped such that a corresponding neighboring engaging element of a neighboring part is movable within the elongated recess in the longitudinal direction relative to the grate bar. The grate bar further comprises two actuating surfaces (34,35) at a bottom side of the grate bar for taking up a protrusion of a grate.

A grate bar configured to include a reinforcement structure of sheet metal and structured to be manufacture at a reduced cost while exhibiting reduced wear and enhanced resistivity to hear and corrosives. A metal-ceramic compound grate (for example—an incinerator grate) utilizing such a grate bar. An incinerator and a cooling grate including such grate bar.

A grate bar has a grate bar head, two side walls, a running surface behind the head and between the side walls and an underside disposed below the surface and between the side walls. A recess in one side wall forms an air slot between the surface and underside and is arranged only on one side wall, not in its opposite side wall. In a grate bar arrangement including multiple grate bars, each including a running surface and a grate bar head, in which an upper grate bar with grate bar head is moveably arranged relative to a lower grate bar so that the head may slide over front and rear grate bar running surface areas, the running surface has air slots in the front and rear areas and the head is displaceable relative to these slots so that the opening cross section of all slots remains constant.

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 method includes producing an arrangement of grate bars for supporting fuel that is burned in an incinerator or other furnace device. The method includes positioning a pair of grate bars in adjacent side by side relation and with the respective upper sides that are configured to support the fuel, in generally aligned relation. The method further includes after positioning the grate bars, manipulating a fastener through respective recesses that extend in the grate bars, so that the grate bars are held in operative connection and in pressed together relation by the fastener. The method further includes subsequent to the fastener manipulation step, covering the recesses with at least one cover, such that the fastener is rendered inaccessible through the upper sides of the grate bars.

A grate bar has a grate bar head, two side walls, a running surface behind the head and between the side walls and an underside disposed below the surface and between the side walls. A recess in one side wall forms an air slot between the surface and underside and is arranged only on one side wall, not in its opposite side wall. In a grate bar arrangement including multiple grate bars, each including a running surface and a grate bar head, in which an upper grate bar with grate bar head is moveably arranged relative to a lower grate bar so that the head may slide over front and rear grate bar running surface areas, the running surface has air slots in the front and rear areas and the head is displaceable relative to these slots so that the opening cross section of all slots remains constant.

The present application discloses a grate bar for a thrust grate of a furnace. The grate bar comprises an elongated recess at a first side of the grate bar. The elongated recess comprises two parallel sliding surfaces which are oriented in longitudinal direction of the grate bar. An engaging element is provided at a second side of the grate bar, which is opposite to the first side. The engaging element comprises two parallel sliding surfaces which are oriented in longitudinal direction of the grate bar. The elongated recess is shaped such that a corresponding neighbouring engaging element of a neighbouring part is movable within the elongated recess in the longitudinal direction relative to the grate bar. The grate bar further comprises two actuating surfaces at a bottom side of the grate bar for taking up a protrusion of a grate.

A grate bar has a grate bar head, two side walls, a running surface behind the head and between the side walls and an underside disposed below the surface and between the side walls. A recess in one side wall forms an air slot between the surface and underside and is arranged only on one side wall, not in its opposite side wall. In a grate bar arrangement including multiple grate bars, each including a running surface and a grate bar head, in which an upper grate bar with grate bar head is moveably arranged relative to a lower grate bar so that the head may slide over front and rear grate bar running surface areas, the running surface has air slots in the front and rear areas and the head is displaceable relative to these slots so that the opening cross section of all slots remains constant.

A grate bar configured to include a reinforcement structure of sheet metal and structured to be manufacture at a reduced cost while exhibiting reduced wear and enhanced resistivity to hear and corrosives. A metal-ceramic compound grate (for examplean incinerator grate) utilizing such a grate bar. An incinerator and a cooling grate including such grate bar.