The Venturi tube, also known as the Venturi tube, is mainly used to induce secondary airflow. The Venturi tube greatly improves the intensity and effectiveness of pulse blowing, reduces the amount of compressed air used, and saves energy. The Venturi tube is made of 1mm thick steel plate by one-time stretching, which has the characteristics of smooth and beautiful appearance, stable and reliable quality. The Venturi tube plays a crucial role in protecting the filter bag. The Venturi tube greatly improves the intensity and effectiveness of pulse blowing, reduces the amount of compressed air used, and saves energy. The Venturi tube is made of 1mm thick steel plate by one-time stretching, which has the characteristics of smooth and beautiful appearance, stable and reliable quality. The Venturi tube plays a crucial role in protecting the filter bag.