Product Information
Sludge cake from centrifuges or belt presses has already been dewatered, but it's often still a soggy mess—meaning you're paying high transport costs to haul mostly water. With tightening environmental rules and rising costs, Dewatered Sludge Volume Reduction has become a practical way for plants to save money. This YS screw conveyor press is built for that "secondary squeeze." Installed right after the dewatering machine, it forces out even more moisture. The cake comes out dense and solid, cutting the volume down drastically and saving a huge chunk on hauling fees.
Get a QuoteDewatered Sludge Volume Reduction Equipment | YS Screw Conveyor Press | Sludge Compactor
Working Principle
Once the cake drops into the hopper, heavy-duty spiral blades grab it and push it forward. As it moves toward the discharge end, the chamber narrows and the squeezing pressure ramps up. Under this intense physical force, the remaining free water is squeezed out through the mesh and flows back to the front of the plant. The solids get compressed into dense, hard strips and discharge smoothly. This physical method of Dewatered Sludge Volume Reduction requires no extra chemicals but still significantly cuts both the weight and volume of the sludge.
Application Fields
1.After belt filter presses: handling the cake directly from start to finish, eliminating the hassle of it dropping on the floor.
2.Printing and papermaking plants: solving the headache of sticky chemical fiber sludge dripping during loading.
3.Water plant sludge rooms: pressing dewatered sediment into hard blocks for easier disposal.
4.Solid waste lines: force-drying organic residue with high solid content.
FAQ
Q1: Why squeeze the dewatered cake a second time?
A: Cake from standard presses usually has a moisture content of 75%–80%, making it quite heavy. Squeezing it again pulls out another 5%–10% of moisture and shrinks the volume by 10%–20%. This significantly cuts hauling weight—saving you real money.
Q2: Do the spiral blades and screen get completely clogged with mud?
A: Usually not. The rotating spiral blades have a self-cleaning effect, constantly scraping the screen surface so mud doesn't stick to the pores for long. As long as there's no bulky hard debris or excessive long fibers, it won't clog. If the mud is extremely sticky, you can opt for a model with a flushing pipe.
Q3: Can this machine run fully automatically?
A: Yes. It typically runs in tandem with the dewatering machine for fully automated operation. With a VFD or overload protection, if the sludge feed suddenly surges and torque spikes, it will automatically slow down or shut down to alarm—no need for someone to constantly watch it.