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Filtering principle of dust removal framework:-Novo environmental protection equipment

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Filtering principle of dust removal framework:

Source: Novo environmental protection equipmentRelease time: 2019/8/29 9:11:06
除尘骨架的过滤原理:
Filtering principle of dust removal framework:
Phone: 0317-8315225 Fax: 0317-8315251
Filtering principle of dust removal framework :
1. Dust cage filtration: The dust cage is a cylinder surrounded by a metal grid, and the openings at both ends of the cylinder communicate with the air duct. The dust cage uses the air pressure generated by the fan to press the dust-containing air toward the surface of the dust cage, and most of the lint and impurities are blocked on the surface of the dust cage. A filter web layer is formed, and the dust-laden air passing through the dust cage enters the secondary filtering device through the channels on both sides of the dust cage. Pre-separator can be regarded as a kind of dust cage filtration. The advantages of dust cage filtration are less auxiliary equipment, simple and convenient management, and filtered cotton jackets with high reuse rate. Generally, it is assembled with other filtration methods into dust filtration equipment. The disadvantage is that the processing air volume is not large, the area is relatively large, and the power consumption is large.
2. Filter bag filtration: The filter bag is a columnar body surrounded by a single layer of fabric, which is usually circular. Its characteristics are simple structure and easy to clean. When the dusty air passes through the filter bag, the dust is separated from the air stream by means of screening, collision, interception and the like. The advantage of filter bag filtration is that the filtration efficiency is high, and the total dust removal efficiency can reach more than 99.5% in the dust room of the textile factory. The structure is simple and the power consumption is low. Disadvantages are that fire alarms are easy to occur, the filter bag is easy to dew, the amount of filtered air per unit area is small, and the amount of filter cloth is large. In a short time after cleaning, the filtered air has a high dust concentration and poor working conditions.
3. Packed filter bed filtration: Packed filter bed is a porous filter material covered with foam plastic, non-woven fabric, plush, etc. on mesh rollers, flat plates and other components. With its good surface filtering and internal filtering effects, the dust is separated from the airflow. The advantages of the packed filter bed are large filtering air volume, low resistance and dust filtering.


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