Three-dimensional grid type feeding device and first flocculation tank comprising same

The invention relates to a three-dimensional grid type feeding device for fly ash leachate treatment and a first flocculation tank comprising the three-dimensional grid type feeding device. The three-dimensional grid type feeding device for fly ash percolate treatment comprises a feeding device body, the feeding device body is characterized in that a plurality of transverse and longitudinal connecting pipes are staggered to form a grid, a plurality of feeding holes facing the center of the grid are formed in the transverse connecting pipes, and electromagnetic valves are arranged at the feeding holes; the feeding device is provided with the vertical first rotating shaft in the center of the grid, the first rotating shaft is provided with the multiple first stirring paddles at intervals in the axial direction, and the height positions of the multiple first stirring paddles correspond to the height positions of the multiple transverse connecting pipes in a one-to-one mode. The three-dimensional grid type feedin