Abstract: A method for supplying raw material to a sinter plant and facilitating a sinter process with reduced consumption of fossil fuels, provides that a mixed material is used to supply raw material, wherein the mixed material includes particulate iron-containing material and particulate pyrolised biomass in mixed form. The iron-containing material is preferably iron ore and/or the pyrolised biomass is preferably charcoal.

Abstract: A grate bar for mounting in arrays of adjacent grate bars in a pallet car of a sintering or pelletizing machine includes an elongate crossbeam extending in a longitudinal direction of a horizontal plane, with a middle section between two opposite end sections. The crossbeam has a generally rectangular cross-section with an upper surface for receiving bulk material thereon, an opposite lower surface, and peripheral surfaces for facing adjacent grate bars. The crossbeam has two legs to vertically secure the grate bar to the pallet car. The end sections of the crossbeam include first interlocking components shaped and arranged such that they cooperate with first interlocking components of grate bars of a neighbouring row of grate bars; thereby limiting relative translations of two neighbouring grate bars in at least a vertical and a horizontal orientation. The first interlocking components have a triangular cross-section in a horizontal plane.

Abstract: A system and method for monitoring the condition of a travelling grate machine including univocally identifying each pallet car; collecting a plurality of condition indicating parameters for the wheels, the grate bars, the car body and/or the side walls of the pellet car; attributing the collected condition indicating parameters to an individual pallet car; storing the collected condition indicating parameters for each pallet car in a database; evaluating the condition of the travelling grate machine; comparing the different condition indicating parameters collected by the different sensor means of each pallet car to reference parameters and/or to previously collected condition indicating parameters of that same pallet car; identifying the faults in each pallet car based on this comparison; classifying each pallet car according to its need of maintenance based on the severity of different identified faults; and determining the pallet car in most need of maintenance based on this classification.

Abstract: A side wall of a pallet car for a travelling grate machine including an upright portion, a wing portion and a lower connection flange, where the wing portion has an upper surface acting as an extension of a loading surface of the pallet car, the upper surface of the wing portion being arranged at an angle with respect to the horizontal.

Abstract: A method of operating a pelletizing plant for additional treatment of iron making, steelmaking and pellet plant residues, the plant including an indurating furnace in which green pellets are charged and fired to produce hard pellets, where the method includes: preparing iron ore green pellets; and charging and firing said green pellets in an indurating furnace, such that agglomerates of by-products are charged and fired with the green pellets in the indurating furnace, thereby producing hardened pellets and hardened agglomerates of by-products; a pelletizing plant is also presented including a pelletizing section, an indurating furnace, an agglomerating section for producing agglomerates of by-products, where a feeding arrangement is configured to charge agglomerates of by-products into said indurating furnace, together with the green pellets.

Abstract: A method for charging pallet cars of a traveling grate for the thermal treatment of bulk material includes in a first step a first layer is applied as a hearth layer on a grate surface of the pallet car. In at least one second step a second layer at the same time or successively is applied as a side layer on two opposed side walls of the pallet car and a third layer is applied as green pellet layer between the side layers and on the hearth layer. The pellets used for the grate and the side layer differ in terms of their diameter and size distribution.

Abstract: A method for charging pallet cars of a traveling grate for the thermal treatment of bulk material includes in a first step a first layer is applied as a hearth layer on a grate surface of the pallet car. In at least one second step a second layer at the same time or successively is applied as a side layer on two opposed side walls of the pallet car and a third layer is applied as green pellet layer between the side layers and on the hearth layer. The pellets used for the grate and the side layer differ in terms of their diameter and size distribution.