Cyclone dust collector is a type of dust removal device. The dust removal mechanism is to make the dusty airflow rotate, use centrifugal force to separate and capture dust particles from the airflow, and then use gravity to make the dust particles fall into the ash hopper. The various components of a cyclone dust collector have size ratios, and any changes in these ratios can affect the efficiency and pressure loss of the cyclone dust collector. Among them, the diameter of the dust collector, the size of the air inlet, and the diameter of the exhaust pipe are the main influencing factors. When using, it should be noted that when a certain threshold is exceeded, favorable factors can also be transformed into unfavorable factors. In addition, some factors are beneficial for improving efficiency, but they can increase pressure losses, so adjustments to all factors should be balanced.

Cyclone dust collectors began to be used in 1885 and have developed into various forms. According to the airflow entry method, it can be divided into two categories: tangential entry and axial entry. Under the same pressure loss, the latter can handle about three times more gas than the former, and the airflow distribution is uniform.

A cyclone dust collector is composed of an intake pipe, an exhaust pipe, a cylindrical body, a conical body, and an ash hopper. The cyclone dust collector has a simple structure, is easy to manufacture, install, and maintain, and has low equipment investment and operating costs. It has been widely used to separate solid and liquid particles from airflow, or to separate solid particles from liquids. Under normal operating conditions, the centrifugal force acting on particles is 5-2500 times that of gravity, so the efficiency of cyclone dust collectors is significantly higher than that of gravity settling chambers. A cyclone dust removal device with a dust removal efficiency of over 80% has been successfully developed based on this principle. In mechanical dust collectors, cyclone dust collectors are one type of efficiency. It is suitable for the removal of non viscous and non fibrous dust, mostly used to remove particles larger than 5 μ m. The parallel multi tube cyclone dust collector device also has a dust removal efficiency of 80-85% for particles larger than 3 μ m. The cyclone dust collector constructed with corrosive special metal or ceramic materials can operate under conditions of temperature up to 1000 ℃ and pressure up to 500 × 105Pa. From the perspectives of technology and economy, the pressure loss control range of cyclone dust collectors is generally between 500-2000Pa. Therefore, it belongs to the category of medium efficiency dust collectors and can be used for purifying high-temperature flue gas. It is a widely used dust collector, mainly used for boiler flue gas dust removal, multi-stage dust removal, and pre dust removal. Its main disadvantage is its low removal efficiency for fine dust particles (