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Filter Cloth Utilize System Fluid Pressure
Jul 06, 2017

Filter Cloth Utilize system fluid pressure

Filter closed filter: filter bag and supporting the use of filters at the same time, the use of system fluid pressure, the liquid squeeze through the filter bag to achieve the purpose of filtration. With a fast flow rate, processing capacity, filter bag long life advantages, especially to adapt to large flow to be closed filter occasions.

Self-flow open filter: filter bag through the adapter directly connected with the pipeline, the pressure difference can be used to filter the fluid gravity. Its significant feature is the need for equipment investment, filtration is simple and feasible, especially for small size, multi-species, intermittent economic liquid filtration.

Bag filter is a dry filter device. It is suitable for capturing small, dry, non-fibrous dust. The filter bag is made of textile filter cloth or non-woven felt, and the dusty gas is filtered by the filtering effect of the fiber fabric. When the dust-laden gas enters the bag filter, the particles are larger and larger than the dust, The role of sedimentation down, falling into the ash bucket, containing smaller dust in the filter through the filter, the dust was blocked, so that the gas was purified. Generally the new filter dust removal efficiency is not high enough. Filter material used for some time, due to sieve, collision, retention, diffusion, static and other effects, the bag surface accumulation of a layer of dust, this layer of dust called the primary, in the subsequent movement of the process, the primary Filter the main filter layer, relying on the role of the primary layer, the larger the filter can also get a higher filter efficiency. With the accumulation of dust on the surface of the filter, the efficiency and resistance of the precipitator are correspondingly increased, when the pressure difference on both sides of the filter, it will be attached to some of the filter on the fine dust particles squeezed in the past, So that the efficiency of the precipitator. In addition, the excessive resistance of the dust collector will significantly reduce the air volume of the dust removal system. Therefore, the resistance of the precipitator to a certain value, it is necessary to timely cleaning. Cleaning can not damage the primary layer, so as to avoid the decline in efficiency.

The structure of the bag filter is mainly composed of the upper part, the middle box, the lower box (ash bucket), the cleaning system and the ash discharge mechanism.

Bag filter performance is good or bad, in addition to the correct choice of bag material, the cleaning system on the bag filter plays a decisive role. To this end, cleaning method is to distinguish one of the characteristics of bag filter, bag filter is also an important part of the operation.

1, dust removal efficiency, can capture particle size greater than 0.3 microns of fine dust, dust removal efficiency of up to 99% or more.

2, the use of flexible, the amount of air can be handled from hundreds of cubic meters per hour to hundreds of thousands of cubic meters per hour, can be directly located in the indoor, near the machine tool small units can also be made into a large dust room,

3, the structure is relatively simple, relatively stable operation, less initial investment (compared with the electrostatic precipitator), easy maintenance.

Therefore, the bag filter is widely used to eliminate dust pollution, improve the environment, recycling materials.


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