| 摘要 |
A grate assembly for use in a gasifier is described. The grate assembly comprises a first and second grate having respective first and second grate elements. The grate assembly also comprises a driving mechanism arranged to enable relative motion between the two grates. Moreover, the driving mechanism is arranged to drive the first and second grate elements relative to one another through a primary movement. The primary movement causes the first and second grates to move alongside one another so that a spacing therebetween is substantially maintained. Moreover, the primary movement causes material trapped within the spacing to be ground between the grate elements. The grate elements 20, 30 may each be made of concentric rings 22 joined by spokes 26, with two elements rotated relative to each other. |
