Research Of Filter Element

This article adopted a kind of new high grade material named sepiolite as the filter element, which is a kind of actual research. According to the searching result of National Science of Technology Library, filter element of sepiolite isn't reported in the world which is a kind of creative research. From the outcome of the research, the research has attained the advanced level in the world.Sepiolite has very big specific surface area. For example,the specific surface area can reach to 450-600m2/g through acidic and heat treatment when the heat treatment temperature is below 300 C.It has been testified that sepiolite is a very good filtration material with excellent adsorption property through the experiment. Pressure losing is 0.31MPa when the flux is 1.6m3/h,which is half of the quartz sand filter. The optimal activation temperature was obtained through the releasing moisture and heat activation experiment ,which is beneficial for the development and utilization of sepiolite.The dressing is even and filter element is very good through the method of taking out vacuum filtration. The thickness can be defined by the concentration of liquid and taking out vacuum filtration time. This article has obtained excellent properties by dressing experiment with different proportion of wood fibre and sepiolite and experiment of pressure losing and absolute filtration precision. Used filter element can be throwed into the field because the storage of sepiolite is rich and price is cheap, only if the adsorpted material is not poisonous. The trouble of dust is wiped off.The relationships were tested among pressure losing,flux and porosity.The pressure losing equation was gained via the model of hydromechanics,the experiment datum of pressure losing and multidimensional linear regression equation.This article has testified this king of filter element will has a good prospect.