Cyclone Dust Collector

A cyclone dust collector is composed of an inlet pipe, an exhaust pipe, a cylindrical body, a conical body, and an ash hopper. With a simple structure, easy manufacturing, installation, and maintenance, and low equipment investment and operating costs, it has been widely used to separate solid and liquid particles from gas flows or solid particles from liquids. Under normal operating conditions, the centrifugal force acting on particles is 5 to 2,500 times that of gravity, making the efficiency of cyclone dust collectors significantly higher than that of gravity settling chambers. Based on this principle, a cyclone dust removal device with a dust removal efficiency of over 90% has been successfully developed. Among mechanical dust collectors, cyclone dust collectors are among the more efficient ones. They are suitable for removing non-viscous and non-fibrous dust, mostly used to remove particles larger than 5 μm. Parallel multi-tube cyclone collector systems can achieve an 80-85% dust removal efficiency for 3 μm particles. Cyclone dust collectors constructed from special metals or ceramic materials that are heat-resistant, wear-resistant, and corrosion-resistant can operate under conditions of up to 1,000°C and a pressure of 500×10⁵ Pa. Considering technical and economic aspects, the general pressure drop control range for cyclone dust collectors is 500-2,000 Pa. Therefore, they are classified as medium-efficiency dust collectors and can be used for purifying high-temperature flue gas. They are widely used in boiler flue gas dust removal, multi-stage dust removal, and pre-dust removal. Their main disadvantage is lower efficiency in removing fine dust particles (<5 μm).