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Filter Bags System Fluid Pressure
Jul 21, 2017

Filter Bags 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 pipe, 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, variety, 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 a textile filter cloth or a non-woven felt, and the dusty gas is filtered by the filtering action of the fiber fabric. When the dusty gas enters the bag filter, the particles are larger and larger than the dust, The role of sedimentation down, fall 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 layer, after the 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 filtration 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 medium is large, some fine dust particles that have been attached to the filter material are squeezed, 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. The filter bag is a key part of the bag filter operation, usually cylindrical filter bag hanging vertically in the dust collector. Filter bag fabric and design should try to pursue efficient filtration, easy dust stripping and durable effect.

In the pulse and air box type pulse dust collector, the dust is attached to the outer surface of the filter bag. Dusty gas through the dust collector, the dust was trapped in the outer surface of the filter bag, and clean gas through the filter into the filter bag inside. The cage inside the bag is used to support the filter bag to prevent the bag from collapsing, and it helps to remove and redistribute the dust.

* Filter cloth is based on the thickness of the filter layer filter, are deep filter

* The depth of the entire filter layer from the fiber to form three-dimensional porous porous structure, from inside to outside from the loose to dense, the formation of gradient filtration.

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