The invention discloses a
siltation-preventing
water intake facility achieving automatic
flood prevention and
pollution discharge. The
siltation-preventing
water intake facility comprises a sand flushing slope, an overflow dam, a
water collection groove and a setting basin. The sand flushing slope is arranged between connected mountains. A flood-preventing dam is arranged on the left side of the sand flushing slope, the overflow dam is arranged on the right side of the sand flushing slope, a sand turning
nozzle is arranged between the sand flushing slope and the flood-preventing dam, the
water collection groove is formed in the sand flushing slope in the
water flow direction and matched with the sand flushing slope in a bearing mode, an overflow slope is arranged in the direction, parallel to the sand flushing slope, of the
water collection groove, the right side of the water collection groove is provided with the overflow dam, the left side of the water collection groove is led to a residue filter
bed, the residue filter
bed is provided with an overflow groove in the
water flow direction and matched with the overflow groove in a bearing mode, a
water stop dam is arranged at the front end of the overflow groove, the overflow groove is connected with the setting basin, and the setting basin is provided with a
water intake gate and a sand
discharge gate. The water intake problems of a mountain river
hydropower station, a
tap water plant and farm
irrigation are fundamentally solved, and the purposes that
siltation and blockage are never caused on a water intake dam in the flood period, and
natural water intake is achieved in the drought period are achieved.