Water-cooled thrust combustion grate

In a water-cooled thrust combustion grate for burning refuse comprising a plurality of stationary hollow grate plates (5) alternating with movable hollow grate plates (6) in a stairway formation, said hollow grate plates (5,6) resting upon each other with a front underedge and extending across an entire width of a grateway, each of said hollow grate plates (5,6) comprising one of a single piece and a plurality of adjacently assembled plates that extend across said entire width of the grateway, each of said movable hollow grate plates (6) driven by a hydraulic cylinder-piston unit (18,19), the improvement comprising:

• two side panels, each comprising at least two water-cooled conduits (8,9), each said water-cooled conduit (8,9) comprising in a longitudinal direction, at least two sections sealingly flanged together, said panels rigidly secured to each other by a plurality of horizontally disposed distancing bars (3,4) disposed perpendicular to said panels;
• two air and water supply conduits (10,11) comprising at least two sections sealingly flanged together, said air and water supply conduits (10,11) providing flushing air and cooling water, and also fixedly secured to at least one of said horizontally disposed distancing bars (3,4);
• a stationary grate plate back side of each of the stationary grate plates (5) resting on one of said distancing bars (3) and a moving grate plate back side of each of the movable grate plates (6) resting on at least one back side steel roller (16,17) having a horizontal axis, each end of a front side of of each said movable grate plates being guided by a front side steel roller (20,21) having an axis perpendicular to said movable grate plate (6);
• and, a front portion of each of the hollow grate plates (5,6) sealingly forming a plurality of ducts (25) having an elongated hole in cross-section for feeding flushing air, said plurality of ducts (25) protruding beyond a surface of the hollow grate plates (5,6).