Sludge sterilization system

The invention discloses a sludge sterilization system. The sludge sterilization system comprises a PLC automatic control system with an attached sludge sample information acquisition system, a sludge hopper, a sludge quantified automatic adding and conveying machine, a lime hopper, a lime quantified automatic adding and conveying machine, two-way helical sludge drug automatic mixing and stirring discharging machine, a horizontal conveying machine, a vertical conveying machine, and a sludge sterilization bunker. The mixture of sludge and lime goes from the discharge gate of the discharging machine into the feed port of the bunker through the horizontal conveying machine and the vertical conveying machine. The bunker comprises a bunker body, a distributing device which is arranged on the upper part of the bunker body and is used for pushing the sludge accumulated at the feed port to the end part on the other side of the bunker body, a shell breaking device which is arranged on the lower part of the bunker body