2results about How to "Increase ventilation resistance" patented technology

An outdoor self-cleaning power distribution cabinet includes a cabinet body, an air guide assembly, and a dust filter box. The dust filter box includes a box body and multiple piston cylinders installed inside the box body. Each piston cylinder has an air inlet at its bottom, and an exhaust window is provided between any two adjacent piston cylinders. The lower end of each piston cylinder has a mesh screen for airflow. Inside the piston cylinder is a piston that slides back and forth on the inner wall of the mesh screen. As the piston slides, it scrapes away dust adhering to the surface of the mesh screen. The dust filter box with a piston structure at the air inlet ensures that the piston head completes a reciprocating scraping motion within the mesh screen each time the fan starts and stops, automatically removing dust accumulated on the outer surface of the mesh. This process requires no manual intervention, maintaining a clean state and ensuring the normal operating life and reliability of the electrical equipment.

This invention discloses a dust removal device and method for tail gas from water-soluble fertilizer production, relating to the field of tail gas dust removal technology. The device and method include a dust removal cylinder with a tangential air inlet pipe on one side, causing the tail gas to enter the cylinder and move in a spiral motion. Dust particles within the tail gas undergo initial settling due to gravity and centrifugal force. This invention utilizes a moving mechanism and an air jet assembly to unfold and enclose coarse and fine filter plates into a sealed cylinder. Each coarse and fine filter plate forms a narrow channel with the inner wall of the dust removal cylinder. Pulsed airflow thoroughly cleans the coarse and fine filter plates, and the stripped dust falls into the narrow channel, effectively suppressing large-scale dust dispersion and diffusion, reducing airflow disturbance, minimizing dust dispersion space, accelerating agglomeration and settling, and preventing secondary adsorption caused by dust re-entrainment.