- Generally, industrial cloth bags are deep filtration, and effective filtration is achieved by forming a dust layer on the surface of the filter bag It takes a long time to form effective filtration, which is about 10% of the whole filtration process. The resistance is relatively large and the efficiency is very low. The interception is incomplete. The pressure during filtration and back blowing is also relatively high. The ash cleaning is frequent, the energy consumption is high, the service life is not long, and the equipment occupies a large area of the ground. When the membrane covered dust removal cloth bag filter material is used, the dust cannot enter the cloth bag, but is filtered on the surface. Whether it is coarse or fine dust, all the dust is deposited on the surface of the filter material, and the filtered material is intercepted only by the aperture of the membrane itself. There is no initial filtration period, and effective filtration begins at the beginning.
- Low voltage, high flux continuous operation Once the traditional deep filter material is put into use, the dust penetrates and establishes a dust layer, and the air permeability drops rapidly During filtration, the accumulated dust inside causes blockage, which increases the resistance of the dust removal equipment The membrane covered filter material has a fine pore size and its lower viscosity, so that the dust penetration rate is close to zero. When it is put into use, it provides filtration efficiency. When the filtered material deposited on the surface of the membrane filter material reaches a certain thickness, it will automatically fall off and be easy to remove the ash, so that the filtration pressure is always kept at a very low level, and the air flow is always kept at a high level, which can work continuously.
- Easy to remove dust The operating pressure loss of any kind of filter material directly depends on the amount of dust left or retained on the surface of the filter material after ash removal, and the length of ash removal time (only a few seconds for the membrane coated filter material). It has very superior ash removal characteristics. Each time the ash can completely remove the dust layer, the interior of the filter material will not cause blockage, and the porosity and mass density will not be changed. It can often maintain the low-pressure loss work.
- Long service life No matter what kind of dust removal mechanism is used; the membrane filter material can give full play to the common advantages. It is a filter material that fully plays the design function of the dust collector Therefore, the cost is low the membrane – covered filter material is a kind of tough and soft fiber structure, which is compounded with a strong base material Therefore, it has sufficient mechanical strength and some deashing property, which reduces the ash removal strength. Under low and stable pressure loss, it can be used for a long time and prolong the service life of the filter bag.
The outer cover of the hot filter bag dust collector needs to stop singeing. The singeing is moderate and light, with fiber exposed. The outer cover film of the high temperature bag dust collector has a good concealing effect. Excessive temperature will make the bag type dust collector too large and make the appearance of high temperature resistant dust bag not smooth. After burn, it also needs to be relieved. The outer layer has no fiber particles and is resistant to high temperature.
The same manufacturer shall be equipped with PPS high-temperature resistant bags with fiber composition and PPS high-temperature resistant bags with the same batch of PPS high-temperature resistant bags shall be equipped with bags with different melting points. It will seriously affect the intensity of the whole fusion and separation process.
The high temperature bag filter has uniform performance in terms of crack resistance, elongation and heat shrinkage. For uniform elongation of membrane, the crack shall be large enough and uniform. The elongation and thermal shrinkage are small, so that the filter cloth will not deform under elongation and high temperature. The purchased high-temperature bag filter is produced by the same manufacturer, and the same batch of high-temperature bag filter is produced by the same manufacturer.
Thicker and higher filter cloth can resist high temperature dedusting – only the high temperature dedusting bag with four corner filter cloth is used to conceal the membrane when directly concealing the membrane, and this film will shorten the time of concealing the membrane with filter cloth for future use. The main factors influencing the uniformity of high temperature dust bag filter cloth by different guarantee methods are the laying and needling of the net.
In the production and processing process of dust remover bags, strict production process is required. The technologist should make the production process first, conduct process test before changing the type, and then make reasonable production process design, and conduct product tracking after production. For changing the standard, the process test should be done first, and the batch production can be carried out only after the test is qualified.
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