Description
DY series belt filter press is a kind of new type based on foreign advanced technology, widely used in municipal sewage treatment,chemical industry,oil refining,metallurgy,papermaking,tannery ,food,coal washing,printing etc industry. With high automatic degree, save energy,high efficiency,convenient to operate and maintenance, it is the ideal sludge dewatering equipment.

Characteristic
1. Adopt advanced foreign technique, beautiful appearance
2. Big structural stiffness, steady operate, low noise
3. Advanced configure concentration pretreatment equipment, better sludge flocculation effect, low operation cost.
4. Gravity dewatering area equip with advanced distributor device, to make material distribute uniformity, extend belt service life.
5. With long gravity dewatering area and wedge type dewatering area, fully material dewatering, to guarantee the material won’t overflow in squeezing area.

6.Roller series arrange scientific in order, gravity dewatering,wedge type dewatering ,squeezing dewatering respectively discharge, non- interfering.

7.Squeezing dewatering roller with big diameter, better dewatering effect, big production ability, save energy high efficiency

8.from feed to discharge mud cake continuous operation, with high automatic degree

9.Power driven device adopting mechanical or frequency conversion stepless speed regulating, big speed range, wide adaptability.
10.Adopting reliable backwashing device, to guarantee belt dewatering effect.
11. Adopt pneumatic tensioning and pneumatic automatic rectify deviation to guarantee belt safety normal operation.

12. Reliable and safety operation, can equip with different specification filter belt according to different material configuration, high filtration precision.

Structure and Principle
DY series belt filter press is composed of driven device,sludge material distribution device,filter belt ,tension agencies,automatic adjust deviation device,filter belt washing device,scrap mud device,gravity dewatering area,wedge shape dewatering area,squeezing dewatering area,rack etc.

Work process: the sludge after flocculation treatment will enter into sludge material distribution device, first pass by gravity dewatering area, this section is longer horizontal move section and small angle ascent stage; filter slurry in filtering belt make movement with belt, in the action of gravity, free water separate with floccules, remove most of free water in filtration slurry, and slurry lost mobility in basic. Then enter into wedge shape space from small to big, at last, two filter belts fold at last, to make filter slurry in middle of filter belt get gradually bigger extrusion pressure, water discharged out from filtering slurry continuous. Now, slurry has lost mobility, to make good preparation for next step entering squeezing area. The squeezing roller in squeezing dewatering area in series according to diameter from big to small, filter slurry get squeezing force from small to bigger.

Pass by several S shape arrange squeezing roller squeeze ,shear to filter cake, filter slurry remove big part of saturated water, to finish sludge dewatering. when filtering belt pass by discharge material device, the mud is scrape from belt by scraper. Up and down filtering belt return gravity dewatering area after washingregeneration, to finish next step sludge dewatering circulate.