Grate block with rising nose

A grate block, as part of an incineration grate for thermal treatment of waste, in which the grate blocks are arranged one above the other in a staircase-like manner and are designed in such a manner that, by means of advancing movements executed relative to one another, during incineration the incineration material is rearranged and conveyed in a direction of conveyance F,

• wherein the grate block comprises a block body, realized as a casting, having the following components:
• a rear end and a front end that is opposite to the rear end in the direction of conveyance F,
• an upper wall, which is substantially parallel to a longitudinal axis L of the block body and forms a rear bearing surface for the waste to be treated, wherein the rear bearing surface defines a substantially horizontal plane,
• and a nose, which is arranged in the region of the front end and is raised with respect to the horizontal plane,
• wherein the raised nose comprises a front bearing surface rising in the direction of conveyance F up to a culmination point, as well as a downwardly sloping end portion that adjoins the front bearing surface after the culmination point, wherein the downwardly sloping end portion comprises a discharge surface that slopes downward substantially in an arcuate manner in the direction of conveyance F, and
• wherein the front bearing surface is S-shaped as viewed in longitudinal section along the direction of conveyance F.