Filtration principle of dust removal skeleton

Dust removal skeleton
The filtration mechanism is the comprehensive effect of short-range capture mechanisms such as sieve filtration effect, direct interception, dispersion sedimentation, inertial collision and electrostatic adsorption. When the dusty air passes through mesh, fabric, non-woven fabric, foam plastic and other filter materials, the packed filter bed filtration filled filter bed is to cover the mesh roller, flat plate and other components with foam plastic, non-woven fabric, Plush and other porous filter materials. With its excellent surface filtration and internal filtration effects, dust is separated from the air flow. The advantages of packed filter bed filtration are large filtration air volume, low resistance and dust filtration.
Dust cage The filter cage is a cylinder surrounded by a metal grid. The openings at both ends of the cylinder are connected to the air duct. The dust cage uses the air flow pressure generated by the fan to press the dust-laden air to the surface of the dust cage, and most of the lint and impurities are trapped on the surface of the dust cage. It forms the filter fiber mesh layer, and the dusty air that also passes through the dust cage enters the second-stage filtration device through the channels on both sides of the dust cage. The pre-separator can be regarded as a type of dust cage filter. The advantages of dust cage filtration are that it has less auxiliary equipment, is simple and convenient to manage, and has a high reuse rate of filtered cotton pudding. It is usually assembled into dust filtering equipment with other filtration methods. The disadvantage is that the air volume is not large, the area is relatively large, and the power consumption is high.
. Dust bag filter The dust bag is a columnar body surrounded by a single layer of fabric. It is usually round. It is characterized by its simple structure and easy dust cleaning. When the dusty air passes through the bag, the dust is separated from the air flow through the effects of screening, collision, and blocking. The advantages of dust bag filtration are high filtration efficiency, the full dust removal efficiency can reach above 100% in the textile factory dust room, simple structure and low power consumption. The disadvantages are that fires are easy to occur, the bags are prone to condensation, the filtered air volume per unit area is small, and a large amount of filter cloth is required. Within a short period of time after dust cleaning, the filtered air contains high dust concentration and the working conditions are poor.