Generally speaking, the key to the filter element lies in the filter material, and the key to selecting the filter material lies in the properties of the dust. Therefore, how to select the filter material according to the properties of the dust is the key to making the filter element. Here, the editor will introduce to you a good The filter material is PTFE coated filter material.
Coal-fired power plants are common in my country. The coal combustion process will produce large amounts of sulfur dioxide, nitrogen oxides and respirable particulate matter.
Due to the excellent properties of PTFE, the use of PTFE-coated filter materials made of PTFE membrane and high-temperature resistant fiber needle felt composite filter materials such as glass fiber in high-temperature environments can greatly reduce smoke and dust emissions from power plants.
In addition, the composite filter material of PTFE membrane and glass fiber needle felt is recognized as the most effective material to overcome inhalable particulate matter.
According to the calculation of 0.3 square meters of filter material for each kilowatt of coal-fired generating units stipulated by the power department, my country needs a total of 192 million square meters of this filter material.
PTFE coated filter material is a new type of filter material that is compounded with a layer of polytetrafluoroethylene film on the surface of ordinary filter material.
This layer of film is equivalent to a “primary dust layer”. Material exchange is carried out on the surface of the membrane, and effective filtration can be carried out at the beginning of use.
The molding process of composite materials is the basis and condition for the development of the composite materials industry.
With the expansion of the application fields of composite materials, the composite materials industry has developed rapidly. Old molding processes are becoming more and more perfect, and new molding methods are constantly emerging. Currently, there are more than 20 molding methods for polymer-based composite materials, and they have been successfully used. land for industrial production.
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