Belt roller press de-watering machine

Working Principle

The fine wet slag raw materials enter into the hopper constantly through screw pump or conveyor(the material belt width is adjustable). Firstly, materials pass through an independent concentrating section where most free water is filtered, thus reducing the sludge slag liquidity. Then materials go through two annular filter belts. Under the driving of the driving roller, materials are distributed evenly by the spiral material press roller. They begin to enter into the curved arc wedge area for initial pressing and de-watering. Next, they enter into low pressure area where the compression roller with a L type mound layer extrudes large amount of water, and makes sure that water is discharged from both sides. Then they enter into the butt clamping and extruding high pressure area, internal and external filter belts bypass several groups of butt clamping and extruding rollers of which the diameter is diminishing. Large amount of water is strongly extruded slowly, forming compressible filter cake. On the other hand, the filter belt twines in S shape, and produces increasing surface pressure and shear force. Under the filter belt tension effect, the pressure produced by outer layer filter belt squeezes a small amount of water in the water out. As the press roller diameter decreases gradually, the material pressure between the filter belt increases gradually, a small amount of water is discharged constantly. Large amount of water is discharged by strong clamp roller squeezing and pressing, then collected and discharged by the sink. After the inner and outer filter belts are separated, wear-resisting scraper device the scrapes the filter cake( pomace) on the working surface of the inner and outer filter belt after de-watering. In the end, high pressure solid cone convex shape cleaning nozzle forms fan crossing water belt, and washes mesh belt continuously, thus keeping constant de-watering effect. 

Working Flow Chart

Belt roller pressure dehydration machine technical parameters

model	bandwidth	monitor rate (kw)	Punching net water pressure (Mpa)	Compressed air		Dimensions  L×W×H（mm）	Feed moisture content %	Water content %	Feed processing capacityT/D
				Air consumption (m3/min)	pressure（bar）
DYLT1000	1000	2.2	≥0.5	0.2	4.0	5180×1640×2280	76～82	50～65	30～40
DYLT1500	1500	3.0	≥0.5	0.3	4.0	5180×2240×2280	76～82	50～65	40～45
DYLT2000	2000	4.0	≥0.5	0.3	4.0	5180×2640×2280	76～82	50～65	55～75
DYLT2500	2500	5.5	≥0.5	0.3	4.0	5180×3140×2280	76～82	50～65	75～100
DYLT3000	3000	7.5	≥0.5	0.3	4.0	5180×3640×2280	76～82	50～65	95～120