Fire grate segment

The utility model provides a fire grate segment (1), which is provided with an upper wall part (2) extending along a first direction (D); a front wall part (3) extending downward from the front end ofthe upper wall part (2); a flow path (S) provided on the back side of the upper wall part (2); and a partition wall (8) for vertically partitioning the flow path (S), the partition wall comprising: apartition wall body (9) having a main surface facing the upper wall (2); and a plurality of cooling holes (10) that are formed in the partition wall body (9) and that eject a cooling medium toward the rear surface of the upper wall part (2) to impingement cool the upper wall part (2). 本实用新型提供了一种炉排片(1)，其具有：上壁部(2)，其沿第一方向(D)延伸；前壁部(3)，其从上壁部(2)的前端向下方延伸；流路(S)，其设置于上壁部(2)的背侧；以及分隔壁(8)，其将流路(S)上下分隔，且具有：分隔壁主体(9)，其主面朝向上壁部(2)；以及多个冷却孔(10)，其形成于分隔壁主体(9)且朝向上壁部(2)的背面喷出冷却介质而对上壁部(2)进行冲击冷却。