【摘要】 介绍了弹性叶片关风器、安装有防堵片的关风器和活动叶片关风器的结构特征及工作原理，说明选用关风器时，应考虑工作条件、物料性质等因素，才能使关风器处于较理想的工作状态，以避免关风器被堵死的现象发生。更多还原

【Abstract】 The structural features and working principles of the air locks with the elastic blades, clogging-proof blades and movable blades were presented. It is shown that the working condition and the material "natures etc staid be considered when selecting the air locks in order to prevent them fm blocking and to make them working in a good condition.更多还原