Method for synchronous deep dechlorination and heavy metal removal of fly ash

The invention discloses a method for synchronous deep dechlorination and heavy metal removal of fly ash, which comprises the following steps: S1, collecting fly ash, and classifying the collected fly ash based on the particle size and surface morphology of the fly ash; s2, washing the fly ash with water, and measuring the soluble chlorine concentration and the soluble chlorine content by using an ion chromatography; s3, the rotating speed of the ball mill, the ball-to-material ratio and the ball-milling time parameters are set, and water is adopted as a ball-milling medium; s4, carrying out deep dechlorination on the fly ash by adopting wet grinding, and drying; and S5, analyzing the leaching concentration of the heavy metal, and repeating the steps S2-S4 until the standard of dechlorination and heavy metal removal is reached. Wet ball milling is applied to promoting fly ash dechlorination and removing heavy metal so as to solve the problem that chlorine exceeds the standard in the fly ash recycling process,