The invention relates to the technical field of tea manufacture, in particular to a screw extruder for removing water in tea residue. The screw extruder comprises a main frame, wherein a panel mounting support leg and a water tank mounting support leg are sequentially welded to one end, close to the ground, of the main frame, a control panel is mounted on the panel mounting support leg, a drivingmotor is connected to one surface, away from the panel mounting support leg, of the main frame through bolts, a screw outer frame is connected to one end, close to the water tank mounting support leg,of the driving motor through screws, one end, close to the water tank mounting support leg, of a
motor shaft of the driving motor is connected with an
extrusion screw through a coupler, a feeding
pipe is welded at one end, away from the panel mounting support leg, of the screw outer frame, a feeding funnel opening is welded at one end, away from the panel mounting support leg, of the feeding
pipe, one end, away from the feeding
pipe, of the feeding funnel opening is connected with a feeding funnel cover through a hinge, and a rotary shaft is welded at one end, away from the driving motor, ofthe
extrusion screw. In the screw extruder, the screw rotates to drive the tea residue to be extruded to a tea residue accommodating cavity, thereby squeezing water into a water tank.