CECO Filters Fiberbed Filters are Effective for Mist Elimination in a Variety of Industries

摘要

CECO offers a complete line of fiber bed mist eliminators and systems to abate liquid mist and aerosol emissions. Fiber bed filters are used to capture and remove liquid and soluble particulate from gas streams. Collection efficiencies as high as 99.9% can be achieved. In addition to abating process exhaust air stream by removing hazardous contaminants for pollution control, fiber bed filters can reclaim valuable materials from process air streams and exhausts, even in heavy liquid loading situations where abatement of stack emissions is critical to regulatory compliance. For Organics Applications (such as are common in the Asphalt, Textiles, Plasticizers industries) CECO Filters' cylindrical Fiber Bed Filters, are typically from 2 ft. to 20 ft. tall, and are constructed around a rolled carbon steel screen which forms the inner cage and a similarly constructed outer cage. The filter material, selected from a wide range of media, is placed between the inner and outer cylindrical screens to form the fiber bed. The required operating parameters of the filter (such as pressure drop, collection efficiency, and gas through-put) determines the diameter of the fibers, fiber materials of construction and the material's packing density, Plates and flanges are attached to the ends to permit a variety of attachment and draining methods. Mist laden gas passes in a radial, horizontal direction perpendicular to one side of the filter bed and cleaned gas exits from the opposite side. Gas flow through a fiber bed filter can be either from outside to inside or from inside of the filter to its exterior. The aerosol particles are captured and collected by the fibers. The collected liquid particles coalesce into larger droplets on the surface of the fibers and as the droplets increase in mass and begin to flow they drain from the filter by gravity.