Cyclone separator for introducing secondary air from upper side of inlet

The invention relates to a cyclone separator with secondary air introduced from the upper side of an inlet, and belongs to the technical field of cyclone separation.The cyclone separator is composed of an exhaust pipe, the inlet, a secondary air inlet, a column section, a conical section and a dust discharge port, and the secondary air inlet is formed in the upper side of the inlet. Secondary air introduced from the upper side of the inlet of the cyclone separator can blow airflow and particles entering from the inlet to a certain distance away from the upper side of the inlet when the airflow and the particles are about to enter a column section separation space, the particles are prevented from forming a top ash ring below the top plate, wall face abrasion is relieved, and the service life of the cyclone separator is prolonged. 本发明涉及一种入口上侧引入二次风的旋风分离器，属于旋风分离技术领域，该旋风分离器由排气管、入口、二次风入口、柱段、锥段和排尘口组成，所述入口的上侧设置二次风入口。本发明中旋风分离器入口上侧引入的二次风会将从入口进入的气流及颗粒物在即将进入柱段分离空间时吹离入口上侧一定距离，防止颗粒在顶板下方形成顶灰环，减轻壁面磨损，延长旋风分离器的使用寿命。