Crown block system and spraying method

The embodiment of the invention provides a crown block system and a spraying method, and relates to the field of ferrous metallurgy production. The crown block system comprises a support, a girder, a hoisting part and a spraying part, the girder is movably connected with the support, the hoisting part is installed on the girder and used for hoisting an iron ladle, and the spraying part is arranged on the girder and used for spraying the iron ladle on the hoisting part. When the crown block system conveys the iron ladle, the spraying piece is arranged on the girder, the spraying piece moves along with the hoisting piece in the process that the girder drives the hoisting piece to convey the iron ladle and sprays the iron ladle in the moving process, the iron ladle does not need to stay in front of a fire blocking door in the whole spraying process, and the situation that water enters a converter when a spray gun breaks down and leaks water is avoided; therefore, safety accidents occur, and the use safety is imp