DEFLECTION PREVENTION DEVICE OF BLADE FOR MECHANICAL STIRRER IN ANAEROBIC DIGESTION TANK, AND MECHANICAL STIRRER AND ANAEROBIC DIGESTION TANK HAVING THE SAME

摘要

According to the present invention, an anti-deflection device can prevent deflection of blades (230) by connecting the blades (230) which mix and stir sludge inside an anaerobic digestion tank to a wire (291) and controlling the blades to ascend and descend within a certain range using a tension means (293).