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Dredge Slurry Dewartering System

Mechanical dewatering equipment is the most rapid dewatering process. Utilizing BZ Dredge Slurry Dewatering System can quickly dehydrate the dredged silt and greatly reduce the treatment time.BZ Dredge Slurry Dewatering System consists of shale shakers, mud cleaner/desander/ desilter, slurry pumps and mud tanks or a combination of all these products.

Description

Dredging is dredging, widening or digging deep rivers and lakes and other water areas, using Hydraulic dredging or machinery to carry out underwater earthwork excavation project.

Hydraulic dredging uses the energy of pumping water at a high velocity through a pipeline to carry sediment away from the lake or the river bottom to a distant location. Because moving water is utilized as the mode of transportation for the sediment, the water and sediment must be separated once the sediment has reached its final destination.

Mechanical dewatering equipment is the most rapid dewatering process. Utilizing BZ Dredge Slurry Dewatering System can quickly dehydrate the dredged silt and greatly reduce the treatment time.BZ Dredge Slurry Dewatering System consists of shale shakers, mud cleaner/desander/ desilter, slurry pumps and mud tanks or a combination of all these products.

BZ Dredge Slurry Dewatering System working process:

  1. The silt is removed from the dredging ship or the transition pond into dredge slurry dewatering system.
  2. The debris and large solids are removed in the first stage through a shaker. Debris may include: grass, roots, leaves, cans, plastic, rags and bottles. Solids ≥0.4mm in size will be removed (this part of the separation particles is determined by the number of mesh selected).
  3. The solidswith the size of 0.4mm falls into a separate bin of the mud tank below with the mud and waits for extraction by the centrifugal pump.
  4. The centrifugal pump will transfer the mud to the second stage, namely the desander stage.
  5. The mud is transferred to a desander where solidsparticles greater than 70 microns are removed.
  6. The mud discharged from the desander is stored in the second separate mud tank, and the solidssediment is discharged through the cyclone outlet to the bottom of the flow screen for drying and discharge.
  7. The mud from the second mud tankis pumped through the second pump into the desilter to remove fine solids particles from the mud. This phase will remove 15-25 micron sized solids. The liquid discharged from the desilter enters the lower third mud tank, and the material discharged from the cyclone discharge mouth falls to the bottom of the flow screen for drying and discharge.
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