Performance analysis FMS high temperature filter bag flume dust removal cloth bag
FMS-Compound Filter Material is a kind of glass fiber composite filter material. It is based on glass fiber filter material and adopts the method of glass fiber and chemical fiber composite,which to play the role of chemical treatment technology and physical finishing technology. And a multifunctional new type of high temperature resistant composite filter material is manufactured. Its abrasion resistance and folding resistance are doubled compared with glass fiber filter media.
It breaks the boundary between traditional glass fiber filter material and chemical fiber filter material. It uses two or more types of fiber composite filter material. It exerts the performance characteristics of various fibers and plays a role in complementing each other; Flume (FMS) It inherits and develops the chemical treatment technology of glass fiber needle felt and post-processing technologies such as heat setting, scorching, opalization, and ironing of chemical fiber needle felt, and achieves easy cleaning, water and oil resistance, and corrosion resistance And anti-condensation and other multi-functional effects.According to the different working conditions of various industries, the introduction of Flumex series filter media. Reversed the traditional general product, the situation of multiple uses.
The invention of Flumes filter media is to change the existing state of glass fiber filter media and chemical fiber filter media, give full play to the advantages of various fibers, improve their defects, improve the material properties and use effects of filter media, and promote the use of filter media. Scientific and technological progress. At the same time, the cost of filter materials is appropriately reduced to provide users with a new and inexpensive product.
Features of Flumes needle felt felt bag
(1) The composite glass fiber has excellent properties such as tensile strength, temperature resistance, and stable size without deformation; it also has the characteristics of chemical fiber abrasion resistance and good folding resistance, which significantly improves the filter material properties. cheap price. The surface of the filter material is beautiful, smooth, smooth, soft, and rigid.
(2) Through compounding, it exerts the role of chemical treatment, and realizes the combination of organic materials and inorganic materials, so that the surface of the veil and the base cloth is coated with an organic film; and it also plays the role of physical post-processing technology , So that the Flumex filter material obtains an excellent surface state, and achieves the multi-functional effect.
(3) Compared with chemical fiber felts, the use temperature space of similar chemical fiber felts is widened; compared with glass fiber felts, the abrasion resistance and bending resistance are doubled, the filtering wind speed is increased, and the service life is extended. . At the same time, we can design and produce a series of products in four temperature ranges of 90 ℃ -130 ℃, 130 ℃ -180 ℃, 180 ℃ -240 ℃, 240 ℃ -300 ℃ for users to choose.
Flumes filter media structure
Flumes filter media is a glass fiber composite filter material, which combines the processing technology of glass fiber and chemical fiber filter media, post-clogging process, and chemical treatment technology, and has a refined three-dimensional structure of glass fiber composite needle punched felt. . Flumex filter material is a needle felt made of glass fiber base cloth and a mixture of glass fiber and chemical fiber.
Performance analysis of Flumes filter media and other high temperature filter media:
(1) Improved peel strength
Glass fiber is a brittle material, and it is not easy to need to punch too much in the production of glass fiber felt, otherwise the glass fiber will be smashed, so the connection between the surface layer and the base cloth is mainly bonded; chemical fiber uses a larger needling density to make The fiber and the fiber, the surface layer and the base cloth are hugged to form a whole, so as to obtain the tensile strength and the peeling strength without chemical treatment.
Flumex filter material is mainly made of glass fiber. Generally, the content of glass fiber is about 70%, and the base fabric is made of glass fiber. Therefore, its needle punch density is relatively small, and the surface layer and the base must be chemically treated. The cloths are glued together; on the other hand, the chemical fiber is added to the surface layer, so that the cohesive force between the chemical fibers still works. In addition, the thermal shrinkage of the chemical fiber is used to fasten the veil and the base fabric together. Therefore, the peel strength of Flumex filter material has doubled compared with glass fiber felt.
(2) Compounding can improve the oxidation resistance. The pps needle felt filter material is the first choice for filter materials for coal-fired boilers in power plants. However, the oxidation resistance of pps fibers is very poor. The strength of the pps needle felt felt filter material will be doubled, causing damage to the pps dust bag. However, if we ply a layer of P84 or PTFE fiber or other non-oxidized fibers on the pps surface and the pps felt is treated with PTFE, its oxidation resistance will be greatly improved.
(3) If the flumex filter material is compounded with special-shaped fiber such as P84 or melamine fiber, it can increase the porosity of the filter material and improve the air permeability. For example, the most commonly used asphalt mixing industry is a composite of Nomex needle felt felts made of dust-removing dust bags for asphalt mixing, which has achieved good results.
(4) In the carbon black industry, we recommend to users FMS-9801 is very popular with users. Because Flumex 9801 is a composite of carbon fiber oxygen fiber and glass fiber. It has high temperature resistance characteristics, as long as the oxidation limit coefficient of the oxygen feed wire meets the requirements, it can fully meet the high temperature resistance requirements of 260 ℃ -300 ℃, and it also has the function of preventing open flame and static electricity, which can reduce the burning in carbon black production. The phenomenon of bags.
(5) The surface of PTFE fiber is particularly smooth, soft and sticky, and the carding performance is very poor. However, if you add some glass or other fibers, you can comb out the web. Therefore, the composite can improve the cohesion of the fibers and improve the web forming performance.
(6) Nylon 66 has very good abrasion resistance and flex resistance. It can be used as tire cord. If it is arranged on the bottom of the filter material and contacts the dust bag cage / framework, it can play a good role.
(7) The glass composition of E glass fiber is different from that of C glass fiber. In contrast, E glass fiber is more common for filter media. But C glass fiber has much better acid resistance than E glass fiber, so it is more reasonable to choose C glass fiber when filtering in acid media.
(8) Compared with glass fiber needle felt filter material, Flumex filter material is easier to attach ptfe microporous film on the surface. Flumex membrane filters do not require adhesives, so static air permeability can reach 2.0m3 / ㎡ · min.
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