The types of industrial flue gas dust removal technologies include: cyclone dust removal, wet dust removal, electrostatic dust removal, filtration dust removal, etc. Currently, bag dust collectors are the most commonly used filter dust collectors. It has high dust removal efficiency, and it also has high dust removal efficiency for sub-micron dust, will not cause secondary pollution, and is easy to directly recycle dry materials. Especially in recent years, bag dust collectors have made great contributions to the control of air pollution and are increasingly used in many fields at home and abroad. They have also promoted the development of ptfe industrial dust removal filter materials . Bag dust removal has accounted for 80% of dust removal equipment. Bag dust removal systems have replaced electrostatic precipitator systems as the main dust removal method in the fields of coking, steel, non-ferrous metal smelting, cement, chemical industry, etc.
ptfe industrial dust removal filter materialThe surface filtration mechanism is the same as the dust layer Filtration is the same, mainly relying on micropore screening. Because the pore size of the membrane is very small, it can retain a large portion of dust particles on the surface of the membrane, completing the gas-solid separation process. This process is different from the separation process of general filter materials. The dust does not penetrate deep into the fibers supporting the filter materials. The advantage is that a thin layer of dust with good air permeability can be formed on the membrane surface at the beginning of the filter bag operation, which can not only ensure high dust removal efficiency, but also maintain low operating resistance.
PTFE industrial dust removal filter material is a three-dimensional mesh structure with no through holes. The porosity and pore size distribution are important indicators for measuring PTFE membrane. The porosity of PTFE membrane is generally between 80% and 95%. A high opening rate will increase ventilation; a concentrated pore size distribution indicates that the membrane pore size is uniform. With a special production process, different pore sizes can be controlled for different materials to achieve filtration purposes. Generally, membrane thickness is not an indicator for evaluating PTFE membranes. If the thickness of the membrane is too large, problems such as low air permeability and high operating pressure may easily occur. According to many years of research and observation, the thickness of the film basically does not affect the service life. The key is the composite strength, which is an important factor affecting the service life.
In order to increase the service life and increase the strength of the membrane, it is necessary to compound the PTFE membrane to various filter materials, such as various needle felts, woven fabrics, Fiberglass etc. Because PTFE itself has non-stick characteristics, it requires very high requirements for membrane compounding technology. Currently, there are two compounding methods: glue compounding and thermal compounding.
ptfe industrial dust removal filter materialhas the inherent properties of polytetrafluoroethylene such as good chemical stability, smooth surface, and low Friction coefficient, high and low temperature resistance, no aging, and it is also microporous, gas-resistant and hydrophobic. The effect is stable and lasts for a long time, and has a good surface filtration effect. The surface structure of ptfe industrial dust removal filter material is a three-dimensional mesh structure, which can filter out fine dust particles. Products are widely used in industrial thermal dust removal, filter cartridges, and filter bags. Interested parties can enter the store for consultation and purchase!
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