Coal gangue-based high-strength water permeable brick for sponge city and continuous production line of coal gangue-based high-strength water permeable brick

The invention discloses a coal gangue-based high-strength environment-friendly water permeable brick for a sponge city, which is prepared from the following components in parts by mass: 10 to 20 parts of cement, 10 to 20 parts of quartz sand, 5 to 15 parts of coal gangue powder, 1 to 5 parts of silica fume, 3 to 15 parts of water, 3 to 6 parts of pigment, 30 to 60 parts of recycled coarse aggregate, 20 to 40 parts of natural coarse aggregate and 5 to 10 parts of water glass. A continuous production line of high-strength water permeable bricks for a sponge city based on coal gangue comprises a plurality of crushers, a first conveying belt, a mixing funnel, a mold and a second conveying belt, two crushing rods are rotationally connected into the crushers, and the two crushing rods penetrate through the crushers; the two smashing rods are located in the smashing machine and fixedly sleeved with smashing rollers. The coal gangue powder and the corresponding coarse bone meal are added, so that the overall hardness