Introduction of high temperature resistant dust removal filter bag
The filtration efficiency of high-temperature dedusting filter bag is related to the filter material structure on the one hand and also depends on the dust filter layer formed from the filter structure on the other hand. The filtration efficiency of the short fiber is higher than that of the long fiber. Higher than filter felt cloth filter. After cleaning, the dust layer is destroyed and the efficiency is reduced a lot. With thick filters, the cleaning can be retained in the dust sector of the filter to avoid during cleaning. Normally, in the case of filter material without cracking, the efficiency can be achieved.
In order to prevent high temperature dust bag clogging and erosion, serious ash accumulation will affect the production of main engine. But it depends on the filter material. The frame is the frame of the filter bag. The quality of the frame directly affects the working state and service life of the filter bag. After installing the dust-removing cloth bag, whether there is bag dropping, loose, wear and other phenomena during use, the appearance is smooth. The filter area required to deal with the same amount of smoke is less than the bag filter. If the temperature is too high, the selected filter bag will exceed the normal service temperature, which will shorten the service life of the filter bag. In serious cases, the filter bag will be burned in a short time. Therefore, when selecting the filter bag, it is necessary to determine the calculation of inlet temperature of the dust catcher and select the corresponding filter bag.
High temperature dedusting filter bag has the spinnability and wear resistance of polyester fiber. It is characterized by good heat resistance, inflammability and non-melting property. The fiber-oxygen index can reach 29%, which is unnatural. At temperatures above 400°C, the fibers are slowly carbonized. In addition, the needle felt dust bag also has good dimensional stability. Compared with glass fiber, its wear resistance and folding resistance are better. Therefore, its high temperature resistance, long service life, so the high temperature bag is aromatic polyamide fiber, is the current high temperature filter cloth bag filter.