Filtering of industrial filter cloth According to the changes in the nature of impurities during filtration can be divided into physical filtration and chemical filtration. Bag filter system is a physical filter, is a liquid in the removal of solid or colloidal particles of the dead end of the filter method. In the case of
According to the filter object is divided into gas filtration and liquid filtration: gas filtration mainly refers to the removal of oil in the oil, water and other particulate impurities; we refer to the liquid filter mainly refers to solid-liquid separation, concentrated in the field of physical filtration; In addition to a lot of taste through the chemical treatment to complete, so not entirely in our reference to the scope of liquid filtration, but a small amount of deodorization in addition to taste work can be carried out through our activated carbon filter bag adsorption.
Physical filter impurity retention mechanism · Mechanical interception: with the retention of its pore size or pore size equivalent to the role of particles such as impurities, that is screening effect. In the case of
Physical effects or adsorption entanglement: In addition to considering the pore size factors, but also consider the impact of other factors, including adsorption and electrical properties (such as static electricity). In the case of
The bridging effect: It can be observed by electron microscopy that at the entrance of the hole, the particles can also be trapped by the bridging action. In the case of
Internal interception: This interception is the retention of particles in the film inside, not cut off the surface of the membrane
Liquid filtration can be divided into deep filtration and absolute filtration
• Deep filtration is a filtering method that is intercepted on the surface and inside of the filter layer. The nonwoven fibers in the nonwoven (also referred to as nonwoven) are randomly intertwined and large particles are first blocked outside the nonwoven fabric, A little bit of penetration into, but to a certain depth and was intercepted, smaller impurity further in depth, and finally through the size of a smaller size of particles and a small amount of particles larger than this size. In the case of
Generally used for deep filtration of the polypropylene, polyester, NOMEX, PTFE and other materials, filter bags, non-woven fabrics and other filter materials, the internal structure, the thickness of the material, the fiber surface will be the depth of the filter interception efficiency influences. In the case of
Typically, this filter is also known as relative filtration, and the filtration accuracy is often defined by the filtration efficiency of impurities of a certain pore size. Different companies on the filter bag precision test methods and achieve the filtration efficiency requirements are not the same, some defined as 80 ~ 85%, some defined as 50 ~ 70%. Resulting in the use of different companies with the same precision filter bag, the actual filter effect is different. Absolute filtration is the use of surface blocking filter, larger than a certain size of the particles 95-99.9% were intercepted, less than the size of the particles all through. In the case of
Usually used for absolute filtration of polypropylene, polyester, nylon and other monofilament or multi-wire and stainless steel filter and other materials filter bag. In the case of
Single fiber absolute filter has a good slagging capacity; multi-fiber absolute filter with high strength and filter colloid ability. In the case of
The diameter of the surface of the bag material must be the same size, the fiber weave must be tight and firm, the material after the joint requirements can withstand greater pressure in order to prevent leakage occurs, strictly guarantee the effect of absolute filtration. In the case of
At present, the industrial filter cloth nylon bag can reach 25μm absolute filtration accuracy, if the absolute filtration requirements of less than 25μm, can be used with filter or other filter equipment to achieve.
浙江天台丰顿滤料有限公司是一家专业从事：液体过滤袋、工业滤布、滤布、滤袋、除尘袋生产销售的滤布厂家，多年来在液体过滤袋、滤袋、工业滤布、除尘袋生产上积累了丰富的经验和领先的技术。
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