Screw type separation device and wastewater treatment system

A screw type separation device comprising:

• a casing that has an object input port into which an obje is input and has, a separated liquid discharge port used for discharge separated liquid that has been separated from the object and has, an object discharge port used for discharging the object that has been dehydrate;
• a screw shaft provided inside the casing:
• a first screw blade s endin on an outer circumferential surface of the screw shalt;
• a second screw blade that spirally extends on the outer circumferential surface of the screw shaft and is positioned to face the first screw blade at a predetermined interval therebetween:
• slope setting unit, which supports the casing, that sets an axial extending direction of the casing to be inclined or perpendicular to the horizontal plane, and
• the discharge preventing unit that is connected to the object discharge port and blocks objects prior to the dehydration from being discharged through the object discharge port,
• wherein the casing has the seperated liquid discharge port at one end of the casing, which is along the rotational direction of the screw shaft with respect to the object input port, and the object discharge port at another end of the casing, which is along the rotational direction of the screw shaft with respect to the object input port, such that an axial extending direction of the casing is inclined or perpendicular to the horizontal plane, and the seperate liquid discharge port is disposed at a position that is higher than the position of the object input port and the object discharge port is disposed at a position that is lower than a position of the object input poort in terms of a vertical direction, and
• wherein the discharge preventing unit includes a discharge pump that is connected to the object discharge port, blocks the object prior to the dehydration that has moved to the other end of the casing, and forcibly discharges the object dehydrated through the object discharge port.

A screw type separation device comprising:

• a casing that has an object input port into which an object is input and has, a separated liquid discharge port s d for discharging separated liquid that has been separated from the object and has, an abject discharge port used for discharging the object that has been dehydrated:
• a screw shaft provided inside the casing;
• a first screw blade spirally extending on an outer circumferential surface of the screw shaft;
• a second screw blade spirally that spirally extends on an outer circumferential surface of the screw shaft and is positioned to face the first screw blade at a predetermined interval therebetween;
• a slope setting unit, which supports the casing, that sets an axial extending direction of the casing to be inclined or perpendicular to the horizontal plane, and
• a separated liquid discharge pump that is connected to the separated liquid discharge port and that forcibly discharges the separated liquid in the casing,
• wherein the casing has the separated liquid discharge port at one end of the casing, which is along the rotational direction of the screw shaft with respect to the object input port, and the object discharge port at another end of the casing, which is along the rotational direction of the screw shaft with respect to the object input port, such that an axial extending direction of the easing is inclined or perpendicular to the horizontal plane, and the separated liquid discharge port is disposed at a position that is higher than the position of the object input port and the object discharge port is disposed at a position that is lower than a position of the object input port in terms of a vertical direction.