The embodiment of the application discloses a kind of
microfiltration machines, comprising: box, drum
assembly,
backwashing mechanism and
sewage tank, box is divided into water inlet chamber and filter chamber, water inlet and water outlet are provided on the lateral wall of box, water inlet is communicated with water inlet chamber, water outlet is communicated with filter chamber;Drum
assembly is rotationally arranged in filter chamber, one end of drum
assembly is communicated with water inlet chamber;
Backwashing mechanism is used to backwash drum assembly;
Sewage tank is arranged in drum assembly, the other end of
sewage tank extends to water inlet chamber and is connected with the inner side wall of box after extending out of drum assembly, and
sewage tank does not rotate with drum assembly.The
microfiltration machine of the application makes the sewage in water inlet chamber directly flow into the inside of drum assembly through one end of drum assembly, realizes
open water inlet, discards the structure form that water inlet
pipe traverses box and extends to the inside of drum assembly along the axis of drum assembly, structure process is simpler, product manufacturing cost is low, and disassembly and maintenance are convenient.