The system is used in equipment for integral casting of ladles, controlling the tilting of ladle turning device.
The system consists of accumulator group and hydraulic main station, controlling one lock cylinder and two turning cylinder. Lock cylinder is used to lock the tilting frame to fixed position through locking plate. When the turning cylinders are lifted, the ladle tilts to pour melted iron. When the cylinders lower, the ladle stay balanced. Rexroth proportional directional valve is used to control the turning cylinders, guaranteeing turning angle. The system is steady without vibration and scramble.
Methods are taken to avoid influence of melted iron’s radiation heat on the hydraulic system, such as insulation on both ends, hydraulic hoses covered with carbon fiber heat resistant insulation fireproof case, ethylene glycol as medium, etc. ensuring safe and steady performance of the equipment.
Diagram of hydraulic system for ladle turning