【摘要】 自新型垂直塔板问世以来 ,有许多机构对它进行了研究和测试。对其原有塔板罩体结构进行的改进 ,进一步提高了塔板性能。对国内有关新型垂直塔板结构的发展进行了综述 ,并提出了几点建议。更多还原

【Abstract】 Since the introduction of new vertical sieve tray to China ,researches and tests have been done by some institutions The modification to the old cover improved the performance of the tray A brief summary about the development of this tray was taken and some advices were put forward更多还原