Belt Filter Press for Sludge Dewatering

Specifications

                                            DY series belt filter press          

Introduction of  belt filter press      

DY series belt filter press is a new type based on international advanced technology which was introduced by national scientific research unit and our company. It can be widely used in sludge dewatering of urban sewage treatment, chemical industry,oil refining, metallurgy,papermaking, leather making, foodstuff, coal washing and printing and dyeing industry. It is an ideal equipment to sludge dewatering with advantages of continuous work, high automation, energy saving, high efficiency, and easy maintenace.

Design features of belt filter press      

1. DY series belt filter press adopting advanced Austrian technology with beautiful appearance.

2. DY series belt filter press with big stiffness structure, smooth operation and low noise.

3. DY series belt filter press equipped with advanced concentration pretreatment equipment with great effect to flocculation and low cost of operation.

4. DY series belt filter press equipped with advanced distributing device in gravity dehydration to make materials distributed well to make filtrating belt have a long service life.

5. DY series belt filter press with long gravity dehydration and wedge dehydration to make material dewatering completely to make sure there is no water spilling in squeezing place.

6. DY series belt filter press with scientific order roller system arrangement to let water in gravity dehydration and wedge dehydration discharge separated. The diameter of squeezing dewatering roller is with large ratio, and dewatering effect is good with large capacity, saving energy and high efficiency.

7. DY series belt filter press with high degree automation from feeding material to removing sludge cake and setting PLC port if necessary to make computer easy to do centralized control.

8. DY series belt filter press power transmission adopts machinery or non-step speed regulation with large regulation scope and wide adaptability.

9. DY series belt filter press setting with the reliable back washing device to assure filtrating belt's dehydration effect.

10. DY series belt filter press adopting pneumatic tension device and pneumatic automatic correction device to ensure filtrating belt can work safely and smoothly.

11. DY series belt filter press the operation is reliable and safety with infrared safety protection and comprehensive emergency safety stopping device.

12. DY series belt filter press different materials are equipped with different types of filtrating belt with high precise filtration.

Structure and principle of  belt filter press      

DY series belt filter press consists of drive machine, sludge distributor, filtrating belt, tension device, automatic adjusting machine, filtrating belt washed machine, mud scraper, gravity dehydration, wedge dehydration, squeezing dehydration and frame, etc.

The process of filter is that sludge after flocculation treatment goes into sludge distributor to gravity dehydration which is a little long period with horizontal movement and small angle rising period;

then filtrated sludge moves with filtrating belt and under gravity, free water is separated from flocculation material. Most of water is removed from sludge, so sludge almost loses mobility.

Then it is transported into wedge dehydration.

 The space in wedge dehydration is from samll size to big size and then the two filtrating belts come together to make sludge bewteen two belts under gradually growing squeezing pressure to let water discharged frequently.

At this stage, sludge has lost the mobility which prepares for squeezing dehydration next step. The diameter of squeezing rollers are ordered from small to big size, but pressure on sludge grows gradually. Sludge is squeezed and plasma cutted through several S type orders squeezing rollers to make saturated water dehydrated from sludge which finish the dewatering process of sludge.

 When filtrating belt goes through discharging device, mud cakes are scraped by scraper from filtrating belt. The upper and lower filtrating belts are washed and then go back to gravity dehydration to fulfill next cycle of sludge dehydration.

Technical specification and dimension belt filter press