Industrial filter cloth filter According to the nature of the impurities in the filter changes can be divided into physical and chemical filtration. Bag filter system is a physical filtration method, is a clear solid liquid or gel-like particles dead-end filtration method. The company is located in:
According to the filter object is divided into gas filtration and liquid filtration: gas filtration mainly refers to the removal of gas oil, water and other particulate impurities; we refer to the liquid filtration refers to the solid-liquid separation, focusing on the field of physical filtration; In addition to color and In addition to a lot of the chemical treatment done, it is not entirely within the scope of the liquid filtration we refer to, but a small amount of color removal in addition to odor removal work can be done through our activated carbon filter bag.
Physical filtration of impurities trapping mechanism · Mechanical retention effect: With its larger than the pore size or pore size of particles and other impurities, that is, the role of screening. The company is located in:
Physical or Adsorption Retention: In addition to considering the pore size factor, there are other factors to consider, including the effects of adsorption and electrical properties such as static electricity. The company is located in:
Bridging role: Observed by the electron microscope, at the entrance of the hole, the particles can also be intercepted by the bridging effect. The company is located in:
Internal retention effect: This retention is the retention of particles inside the membrane, not cut in the membrane surface
Liquid filtration can be divided into deep filtration and absolute filtration
· Deep filtration is the filtering method of intercepting on the surface and inside of the filter layer. The non-woven fibers (also known as non-woven) are irregularly intertwined. The large particles are first intercepted outside the non-woven fabric, Smaller infiltration, but to a certain depth and was intercepted, a little deeper impurities further, and finally through the smaller than a certain size of the particles and a small amount of particles larger than this size. The company is located in:
Usually used for depth filtration of polypropylene, polyester, NOMEX, PTFE and other materials such as filter bags, non-woven filter material such as the internal organizational structure, the thickness of the material, the fiber surface will have depth filtration efficiency of interception influences. The company is located in:
In general, this type of filtration is also referred to as relative filtration, and filtration accuracy is often defined by the filtration efficiency of impurities of a certain pore size. Different companies have different requirements on the testing methods and the filtration efficiency of the filter bags, some of them are defined as 80-85% and some as 50-70%. Resulting in the use of different companies with the same precision filter bag, the actual filtering effect is different. The company is located in:
Absolute filtration is the use of surface interception filtering, particles larger than a certain size of 95-99.9% was intercepted, particles smaller than this size all through. The company is located in:
Commonly used for absolute filtration of polypropylene, polyester, nylon and other single or multi-wire and stainless steel filter bag and other materials. The company is located in:
Single fiber absolute filter with good slag removal ability; multi-fiber absolute filter with high strength and ability to filter the colloid. The company is located in:
The diameter of the filter bag surface must be the same size, fiber braid must be tightly fixed, the material requirements can withstand greater pressure joints, in order to prevent leakage occurred, strictly ensure the effect of absolute filtering. The company is located in:
At present, the nylon bag in the industrial filter cloth can achieve the absolute filtration precision of 25μm. If the absolute filtration requirement is less than 25μm, it can be matched with the filter cartridge or other filtration equipment.
(Addtime：2017-12-26)
