Study on the Preparation Process and Performance of Centrifugal Formed Composite Filter Cartridge
High temperature resistant composite filter cartridges were prepared using centrifugal molding technology,with 1#fiber,2#fiber,3#fiber,aggregate,silica sol,and alumina as the main raw materials.By studying the effects of raw material ratio,centrifugal speed,different fibers,and process parameters on the performance of composite filter cartridges.The results show that at a centrifugal speed of 1 000 r/min,the mass ratio of fiber to powder is 1:1.5,the fabric speed is 0.6m/s,and the fiber specific weight is close to 210ml(5g).After curing in a 150℃ oven for 12 hours,a composite filter cartridge with higher surface density,obvious layered structure,more uniform fiber distribution,and flat inner and outer walls can be obtained.Its C-ring compressive strength reaches 0.581Mpa,porosity reaches 80.7%,and pressure drop is 553Pa.
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