Construction method for overhauling coke guide grid of coke barrier car

The invention provides a construction method for overhauling a coke guide grid of a coke barrier car, which comprises a method for dismounting, mounting or replacing the coke guide grid so as to solve the problems that a plurality of coke ovens are connected into a row, the coke barrier car in the middle of the ovens has no end platform position (the crane is limited) and the coke guide grid of the coke barrier car is difficult to replace, and meanwhile, the coke guide grid is safely, reliably and quickly overhauled. And the influence on normal production is small. According to the method, the coal leveling rod overhauling frame and the coke barrier car structural beam are used as supports for hoisting the coke guide grid, and the coke guide grid is divided into an upper half and a lower half to be hoisted respectively through alternate adjustment among the chain hoists on the coal leveling rod overhauling frame and the coke barrier car structural beam, so that the method has the advantages of small hoisting