| 摘要 |
<p>The grid device (GR) comprises parallel top bars (BS) having a horizontal upper surface (SSBS) and two symmetric side surfaces (SLBS) inclined with respect to a longitudinal plane, lower bars (BI) perpendicular to top bars and having two side surfaces symmetric and inclined with respect to a vertical plane, and a beam for supporting the lower bars. The side surfaces approach each other against the upper surface. The lower bars are fixed to the top bars to support the beams. Minimum distance between two lower bars is greater than a minimum spacing between two top bars. The grid device (GR) comprises parallel top bars (BS) having a horizontal upper surface (SSBS) and two symmetric side surfaces (SLBS) inclined with respect to a longitudinal plane, lower bars (BI) perpendicular to top bars and having two side surfaces symmetric and inclined with respect to a vertical plane, and a beam for supporting the lower bars. The side surfaces approach each other against the upper surface. The lower bars are fixed to the top bars to support the beams. Minimum distance between two lower bars is greater than a minimum spacing between two top bars. The top bars have a triangular or trapezoidal cross section. The lower bars have a pentagonal, rhomboidal or triangular cross section. The side surfaces of upper bars and lower bars have an inclination of 10-50[deg] and 5-45[deg] respectively. The beams are tubular, rhomboidal, rectangular or a unique section. Deflectors are mounted on beams between the lower bars and upper bars. The grid has an opening rate of 40%. An independent claim is included for a kiln.</p> |
