Method for preventing steel ladle slide mechanism from being opened accidentally

The invention relates to a method for preventing steel ladle slide mechanism from being opened, especially being opened accidentally. The method is characterized in that the method comprises following steps of before a steel ladle is baked, picking off a hydraulic cylinder from the steel ladle, installing supporting handrails, taking out the steel ladle after being smelt and then lifting the steel ladle to an assigned position; dismounting the supporting handrails from the steel ladle, assembling the hydraulic cylinder and finishing drainage of the steel ladle; and pouring the steel ladle, then dismounting the hydraulic cylinder from the steel ladle, assembling the supporting handrails and lifting the steel ladle back to a melting workshop. According to the invention, it can be avoided that a slide mechanism is opened caused by collision of external force during a lifting process of smelting or pouring of a steel ladle carrying molten steel, thereby achieving an objective of safe production.