Device and method for preparing waste muck soil building blocks

The invention belongs to the technical field of waste sludge treatment, and discloses a device and a method for preparing waste sludge industrial building blocks, and the device comprises a frame supporting unit, a sample preparation unit, a guiding and limiting unit, a pressurizing unit, a sludge temporary storage unit and a geotechnical bag unit. The preparation method of the geotechnical building block comprises the following specific steps: S1, determining basic physical characteristic indexes such as water content, liquid limit and plastic limit of the waste sludge, and determining the mixing amount of a flocculating agent and a curing agent according to the basic physical characteristic indexes; and S2, mixing and stirring the curing agent, the flocculating agent and the waste sludge in proportion. Then the pretreated waste sludge slurry is pumped into a geotechnical building block preparation device, and a hydraulic device is started for filter pressing and sample preparation; and S3, applying the geot