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 cooling system for a grate bar of an incinerator of solid materials is provided includes a feed grate having a plurality of grate bars, at least one of the grate bars including a body having a top surface, a bottom surface, a first end and a second end, a first aperture in the body and a second aperture in the body, and an internal passageway defined within the body and fluidly connecting the first aperture to the second aperture, the first aperture arranged to receive a gas therethrough into the body, and the second aperture arranged to provide an egress for the gas out of the body. The cooling system further includes a manifold duct fluidly coupled to the second aperture for receiving the gas from the second aperture. The gas is independent of the primary combustion air of the incinerator.

A grate block for a combustion grate, wherein consecutive grate blocks are arranged in a staircase and are designed to rearrange and convey the combustible material during combustion through pushing motions. The grate block includes a block body, an upper wall forming a supporting surface, and an extension parallel to a longitudinal axis L of the body. The supporting surface drops into a pushing surface formed by a front wall, which has at least one air supply opening for supplying air to the combustion grate, which extends at a right angle or slant to the pushing surface. In the lowest region of the front wall, formed as a foot, which lays on the supporting surface of a grate block, is adjacent in the pushing direction. The front resting edge of the pushing surface is arranged in a plane E extending at a right angle to the longitudinal axis L.

A grate block for a combustion grate, wherein consecutive grate blocks are arranged in a staircase and are designed to rearrange and convey the combustible material during combustion through pushing motions. The grate block includes a block body, an upper wall forming a supporting surface, and an extension parallel to a longitudinal axis L of the body. The supporting surface drops into a pushing surface formed by a front wall, which has at least one air supply opening for supplying air to the combustion grate, which extends at a right angle or slant to the pushing surface. In the lowest region of the front wall, formed as a foot, which lays on the supporting surface of a grate block, is adjacent in the pushing direction. The front resting edge of the pushing surface is arranged in a plane E extending at a right angle to the longitudinal axis L.

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.

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.

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 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 cooling system for a grate bar of an incinerator of solid materials is provided includes a feed grate having a plurality of grate bars, at least one of the grate bars including a body having a top surface, a bottom surface, a first end and a second end, a first aperture in the body and a second aperture in the body, and an internal passageway defined within the body and fluidly connecting the first aperture to the second aperture, the first aperture arranged to receive a gas therethrough into the body, and the second aperture arranged to provide an egress for the gas out of the body. The cooling system further includes a manifold duct fluidly coupled to the second aperture for receiving the gas from the second aperture. The gas is independent of the primary combustion air of the incinerator.

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.