Dual-Screw Sludge Dewatering Press with Automatic Cleaning System

Dual-Screw Sludge Dewatering Press with Automatic Cleaning System

Product Item : DL-301
Category： Sludge Dehydrator
Material: SS304/SS316L
Productivity: 30-50KG/H
Machinery Test Report: Provided
Certification: CE /ISO9001
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Sludge dehydrator descriptions

The rotation of the screw shaft produces a great internal pressure under the blocking action of the backpressure plate while pushing the sludge transportation so that the volume is continuously reduced, and the purpose of dewatering is finally achieved.

Sludge dehydrator process

The sludge is delivered to the metering tank through the sludge pump, and then the sludge flows into the flocculation mixing tank. The excess sludge flows back to the sludge tank from the overflow pipe. Inject polymer flocculants into the flocculation mixing tank, alum floc formed after stirring, and then enters into a dewatering section of a screw press after gravity concentration (pre-treatment) section. Flocculation and dewatering are carried out in sequence, so that we have a three-stage separation process: flocculation, dewatering and concentrate recovery.

Sludge dehydrator model

Model	DS capacity(g/h)		Sludge capacity (m³/h)		Sludge treatment capacity						Spiral diameter	Discharge Distance	Size(mm)			Net.Kg	Run Kg	Power	Washing Q
Model	Min	Max	2g/L	5g/L	2g/L	5g/L	10g/L	20g/L	25g/L	50g/L	Spiral diameter	Discharge Distance	L	W	H	Net.Kg	Run Kg	Power	Washing Q
DL101	3	5	1.5	0.6	1.5	0.6	0.5	0.25	0.2	0.1	Φ100×1	215	1816	756	1040	200	290	0.2	24
DL131	6	10	3	1.2	3	1.2	1	0.8	0.4	0.2	Φ130×1	260	1969	756	1040	220	315	0.36	24
DL132	12	20	6	2.4	6	2.4	2	1	0.8	0.4	Φ130×2	250	2069	910	1040	275	450	0.62	48
DL202	18	30	9	3.6	9	3.6	3	1.5	1.2	0.6	Φ200×2	350	2500	935	1270	470	730	1.11	64
DL301	30	50	15	6	15	6	5	2.5	2	1	Φ310×1	495	3255	905	1600	850	1320	0.74	40
DL302	60	100	30	12	30	12	10	5	4	2	Φ310×2	495	3455	1285	1600	1500	2230	1.11	80
DL303	90	150	45	18	45	18	15	7.5	6	3	Φ310×2	495	3055	1690	1600	1520	3080	1.86	120
DL352	120	200	60	24	60	24	20	10	8	4	Φ350×2	580	4240	1550	2190	1950	3400	3.75	144
DL353	180	300	60	36	60	36	30	15	12	6	Φ350×3	580	4460	2100	2160	2600	4850	6	216
DL402	120	200	60	24	60	24	20	10	8	4	Φ410×2	585	4140	1550	2250	2450	3400	3.75	144
DL403	180	300	60	36	60	36	30	15	12	6	Φ410×3	585	4420	2100	2250	3350	4850	6	216

Sludge dehydrator advantages

1. Waste Volume Reduction

2. Reduced Transportation Costs

3. Consistent Cake Dryness with Lower Risk of Spilling/Leaking

4. Wastewater Recycling

5. Equipment is Easily Automated

6. Eco-Friendly

Sludge dehydrator key features

This series of screw press machines are suitable for the pressing and dewatering of solid materials like sludge and other solids, such as some waste food materials and other industrial wastes.

The main body of the sludge dewatering machine can be divided into two parts: in the first part where gravity concentration occurs, the screw will rotate downward and push out a mixture of water and solid materials that are below it.

In the second part where there is no gravity concentration, but with pressure generated by the rotating screw, pressure is applied to keep the solid materials pressed between rings so that they can get dehydrated by moisture vaporization during operation.