Abstract: A cooling grate, for cooling and transporting of cement clinker having at least one grate element with at least one support for cement clinker, having at least one cooling air channel discharging into the support which is inclined in conveying direction at least in a section adjacent to its outlet used to inject cooling air into the clinker has improved cooling characteristics if the cooling air channel is curved in conveying direction in at least a section adjacent to the outlet.

Abstract: A slider unit for a tertiary air duct between a clinker cooler and a calciner of a clinker kiln line. The slider unit has at least one shutoff device, which is insertable into a tertiary air duct to seal it without further reducing the cross section of the tertiary air duct, and provides reliable sealing of the tertiary air duct and control of the tertiary air flow, if the slider unit has at least one control device which is insertable into a section of the tertiary air duct to reduce its cross section.

Abstract: A slider unit for a tertiary air duct between a clinker cooler and a calciner of a clinker kiln line. The slider unit has at least one shutoff device, which is insertable into a tertiary air duct to seal it without further reducing the cross section of the tertiary air duct, and provides reliable sealing of the tertiary air duct and control of the tertiary air flow, if the slider unit has at least one control device which is insertable into a section of the tertiary air duct to reduce its cross section.

Abstract: A grate plate arrangement for stepped reciprocating grates includes a grate plate with a front plate fastened to a front wall in the direction of conveyance. The grate plate includes an adjustment plate being clamped between the front plate and the front wall of the grate plate for adjusting a motion gap between the front end of the grate plate and the following grate plate in the direction of conveyance which forms the next grate step. The adjustment plate is calibrated with the front plate still only loosely assembled, in its vertical position that forms the motion gap, and is held in this position by clamping the front plate.

Abstract: A cooling grate, for cooling and transporting of cement clinker having at least one grate element with at least one support for cement clinker, having at least one cooling air channel discharging into the support which is inclined in conveying direction at least in a section adjacent to its outlet used to inject cooling air into the clinker has improved cooling characteristics if the cooling air channel is curved in conveying direction in at least a section adjacent to the outlet.

Abstract: A grate plate arrangement for step grates includes box-like grate plates (4) positioned on a grate carrier (2) with a front plate (24) placed on its end wall (18) and fastened to the end wall (18) using one or more studs (26) screwed to the grate plate (4). The bolt head (32) of each stud (26) is countersunk into a recess (34) built into the front plate (24) and covered on the outside by covering (cover 38) and secured against unscrewing.