Tray for carbamide synthesis

A tower tray used for urea synthesis, comprising a tray (2) where the global cap shaped banquettes (3)are available; the banquette inner chamber (32) is connected with the synthetic tower inner chamber (10) under the tray (2); the through holes (31) is available on the global cap wall of the banquette (3). The said through holes (31) are distributed on the global cap banquette (3); the angle thereof is 51 degree swung dash 55 degree along the horizontal sectional tangent to periphery. As compared with the existing technology, the tower tray through holes presents 53 degree via the horizontal sectional tangent to periphery and disperses over the banquette of the global cap, so as to optimize the flowing method of the airflow and the liquid stream as well as increase the gas-liquid contacting velocity and the degree of the gaseous dispersion, so that the gas phase can be quickly diffused to the liquid phase so as to improve the conversion of the carbon dioxide. As per stated above, each property of the global c