Method for rapidly dehydrating and curing foundation pit sludge

The invention relates to the field of environmental geotechnical engineering, in particular to a foundation pit sludge rapid dehydration and solidification method. The method comprises the steps that S1, sludge in a foundation pit is placed at the bottom of the sludge through a first sludge pump which is connected and punched, and the sludge is pumped into a sludge-water separation machine for sludge treatment, so that the sludge is uniformly stirred, and sludge and water are separated; S2, the sludge obtained after water separation is stirred is screened along multiple layers of filter screens with different pore diameters through the gravity effect, and sludge soil without large-particle impurities is obtained; S3, sludge obtained through screening is pumped into a drying pipe through a second slurry pump, the sludge and quicklime are mixed through two nozzles for spraying quicklime powder arranged on the pipe and the wavy design of the bottom of the device, a chemical reaction occurs, and the drying effect