Stirring shaft based on comprehensive organic waste subcritical hydrolysis treatment

The stirring shaft comprises a stirring shaft assembly, the stirring shaft assembly comprises a mounting assembly, a barrel is inserted into the mounting assembly, stirring paddles distributed in an equidistant structure are welded to the outer walls of the two sides of the barrel, and the stirring paddles are welded to the mounting assembly. Discharging holes are formed in the positions, close to the top end, of the outer walls of the two sides of the barrel, two supporting plates are installed in the barrel through bolts, a pump body is installed on the outer wall of the top of one supporting plate through bolts, a material conveying pipe penetrating through the supporting plates is inserted into the discharging end and the feeding end of the pump body, and a key groove is formed in the top end of the barrel. During stirring, the pump body is started, so that materials at the bottom of the hydrolysis equipment flow into the cylinder body through the material conveying pipe, then flow into the mounting assem