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Sludge Dewatering Screw Press For Sewage Disposal
Our screw press dewatering has a compact design, fully automatic control, simple operation, 24-hour unmanned operation, and low-speed operation, low noise and vibration, and low energy consumption. It also has a self-cleaning function, with a very small amount of flushing water, and is effective in dewatering oil-containing sludge.
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1.Dewatering Mechanism
2.Screw Configuration
3.Variable Speed Control
4.Automatic Operation

STRUCTURE & PRINCIPLE OF SLUDGE DEWATERING SCREW PRESS

The spiral stacked body of the dewatering machine is an over-shielding device formed by fixed and traveling rings stacked on top of each other, with the spiral shaft running through it. The concentration section is the front section and the dewatering section is the rear section.

From the thickening section to the dewatering section, the filtration gap formed between the static and moving rings as well as the pitch of the screw shaft gradually decreases.

The rotation of the screw shaft not only transports the sludge from the thickening section to the dewatering section, but also continuously drives the traveling ring to clean the filter gap and prevent clogging.
Sludge-treatment-equipment

THE TECHNOLOGY OF SLUDGE DEWATERING PRESS

After the sludge is thickened by gravity in the thickening section, it is conveyed to the dewatering section. With the gradual narrowing of the filtration gap and spacing, as well as the blocking effect of the back-pressure plate, a large internal pressure will be generated, and decreasing in volume, so as to results in full dehydration.

Almost the whole machine is made of 304 stainless steel, and the only wearing parts are screw shaft and floating ring, which maximizes the service life.

As one of sludge dewatering screw press manufacturers，SD can give you customized services according to your needs of your projects.
For your customized service, please contact us now！
 

THE PARAMETER OF SLUDGE SCREW PRESS

Screw Press Sludge Dewatering Machine

Model

DS Capacity

Sludge Treating Capacity

Treatment
Capacity（T）

Size（mm）

Net
Weight（kg）

Electric
Motor（kw）

Material

Control cabinet

Drying Mud

10000mg

20000mg

30000mg

40000mg

50000mg

DL101

5-7kg/h

—0.5m3/h

—0.25m3/h

—0.2m3/h

—0.15m3/h

—0.14m3/h

1

1900*750*1100

210

0.25+0.18

Stainless steel 304 material, corrosion resistance, heat resistance, good mechanical properties and long service life（Other material requirements can be customized.）

There are Siemens, Schneider and other brands, which can be customized.

DL131

10-14kg/h

—1m3/h

—0.5m3/h

—0.4m3/h

—0.3m3/h

—0.28m3/h

1

2000*750*1100

290

0.25+0.18

DL132

12-24kg/h

—1m3/h

—0.5m3/h

—0.4m3/h

—0.3m3/h

—0.28m3/h

2

2100*850*1150

350

0.25*2+0.37

DL201

15-20kg/h

—1.5m3/h

—0.75m3/h

—0.6m3/h

—0.5m3/h

—0.4m3/h

1.5

2750*850*1450

420

0.37+0.55

DL202

30-40kg/h

—3m3/h

—1.5m3/h

—1.2m3/h

—1m3/h

—0.8m3/h

3

2900*1100*1450

570

0.37*2+0.75

DL251

15-30kg/h

—1m3/h

—0.5m3/h

—0.4m3/h

—0.3m3/h

—0.28m3/h

3

3000*900*1550

520

0.55+0.75

DL252

30-60kg/h

—1m3/h

—0.5m3/h

—0.4m3/h

—0.3m3/h

—0.28m3/h

6

3150*1200*1750

650

0.55*2+0.75

DL301

50-70kg/h

—5m3/h

—2.5m3/h

—2m3/h

—1.5m3/h

—1.4m3/h

5

3300*1050*1700

700

0.55+0.75

DL302

100-140kg/h

—10m3/h

—5m3/h

—4m3/h

—3m3/h

—2.8m3/h

10

3400*1250*1800

1550

0.55*2+1.5

DL303

150-210kg/h

—15m3/h

—7.5m3/h

—6m3/h

—4.5m3/h

—4.2m3/h

15

3500*1650*1810

1810

0.55*3+1.5

DL351

100-120kg/h

—10m3/h

—5m3/h

—4m3/h

—3m3/h

—2.4m3/h

10

3800*950*1900

700

1.1+1.5

DL352

200-240kg/h

—20m3/h

—10m3/h

—8m3/h

—6m3/h

—4.8m3/h

20

3950*1340*1900

1950

1.1*2+1.5

DL353

300-360kg/h

—30m3/h

—1.5m3/h

—12m3/h

—9m3/h

—7.2m3/h

30

4180*1700*1900

2050

1.1*3+1.5

DL401

130-160kg/h

—13m3/h

—6.5m3/h

—5m3/h

—4m3/h

—3.2m3/h

15

3950*1100*2100

1200

1.5+1.5

DL402

260-320kg/h

—26m3/h

—13m3/h

—10m3/h

—8m3/h

—6.4m3/h

30

4325*1420*2100

2100

1.5*2+1.5

DL403

390-480kg/h

—39m3/h

—19.5m3/h

—15m3/h

—12m3/h

—9.6m3/h

45

4480*1800*2100

3200

1.5*3+1.5

DL404

520-640kg/h

—52m3/h

—26m3/h

—20m3/h

—16m3/h

—12.8m3/h

60

4400*2600*2100

4400

1.5*4+1.5*2

THE FEATURES OF SCREW PRESS DEWATERING MACHINE

Dewatering Mechanism

The primary function of the screw press is to dewater sludge, separating the liquid (water) from the solid sludge material. 
This process reduces the amount of sludge and makes it easier to dispose.

Screw Configuration

This equipment typically consists of a rotating screw within a cylindrical screen. 
The screw conveys the sludge along the length of the press while applying pressure to squeeze out the water.
 

Variable Speed Control

Many screw presses have the function of variable speed control, allowing operators to adjust the processing speed according to the characteristics of the sludge to be processed. This flexibility ensures optimal dewatering efficiency.

Automatic Operation

Some modern screw presses are equipped with automatic controls, making them self-regulating based on factors such as sludge volume, moisture content, and other parameters. This enhances efficiency and reduces the need for constant manual monitoring.

Continuous Operation

"Sludge dewatering equipment are often designed for continuous operation, allowing for a consistent and reliable dewatering process. This is crucial in sewage disposal systems where a constant flow of wastewater and sludge is typical.

High Solids Capture Rate

The design of the screw press aims to achieve a high solids capture rate, ensuring that a significant amount of solid material is separated from the liquid phase. This results in a cake-like substance with reduced water content.

Low Energy Consumption

Efficient designs contribute to lower energy consumption, making screw presses a relatively energy-efficient option for sludge dewatering compared to some other methods.
 

Compact Design

Screw presses are often compact in design, which can be advantageous in facilities with limited space. The feature of compactness can makes them apply for retrofitting into their existing wastewater treatment systems.

Minimal Maintenance

Well-designed sludge dewatering system require minimal maintenance. Regular cleaning and checking are usually sufficient to ensure Guaranteed long-time operation.
 

ADVANTAGES OF SCREW PRESS SLUDGE DEWATERING MACHINE

Not Easy To Block

Dynamic and static annular filtration seam structure makes the equipment not easy to be clogged, does not need a lot of cleaning to prevent the filtration seam from being clogged, completely reduces the amount of water used for rinsing, reduces the burden of the internal circulation, and solves the problem of clogging of the traditional dewatering equipment to the enterprise.It can also improved efficiency and cost-effectiveness in industrial processes, while also addressing environmental concerns associated with water usage.

Continuous Automatic Operation

The sludge dewatering machine adopts automatic control from pumping out sludge, injecting medicine to discharging mud cake. Through the electric control cabinet and the dipping machine, mud pump, dosing pump and other equipment linkage, without personnel operation. During operation, there is no clogging, filter belt deviation and other phenomena affecting process safety, and the daily maintenance is simple, which can realize 24-hour unattended continuous operation. Realized the continuous automatic operation of sludge dewatering.

No Secondary Pollution

The rotation speed of the screw shaft is about 2~3 rpm, This slow speed likely contributes to the absence of vibration and minimal noise, providing a quiet and stable operation. its laminations have self-cleaning function, no clogging problem, only a small amount of water is needed for washing, and there is no secondary water pollution,which ensures that the water used in the process remains clean and does not introduce contaminants back into the environment. After a slow working state, the odor does not diffuse, thus creating clean environment.

APPLICATIONS OF DEWATERING SCREW PRESS MACHINE

The sludge press machine has a wide range of applications in the sewage treatment system. It is suitable for sludge in municipal government sewage, food, beverage, chemical industry, leather, welding consumables, papermaking, printing and dyeing, pharmaceuticals, farms and other industries.
  • The-dewatering-press-can-be-used-in-municipal-sewage
    The dewatering press can be used inmunicipal sewage
  • The-sludge-screw-press-can-be-used-in-industrial-sewage-treatment
    The sludge screw press can be used inindustrial sewage treatment
  • The-screw-press-can-be-used-in-farms
    The screw press can be used in farms
THE CUSTOMIZED PART OF SCREW SLUDGE DEWATERING MACHINE
material-of-screw-dewatering-machine

The material of screw dewatering machine

Optional 304/316 stainless steels
gear-reducer-of-sludge-dewatering-machine
The gear reducer of sludge dewatering machine
Optional brand：SEW
Control-system-of-screw-press-dewatering
Control system of screw press dewatering
Customized timing, sequencing, can be paired with dosing units

Used in conjunction with dosing device

In the whole sludge dewatering process, the screw sludge dewatering machine is an important link, but also need to support the flocculant dosing device, because the sludge directly into the screw dewatering machine can not be realized solid-liquid separation, active organic sludge only in the flocculant (PAC, PAM) under the action of the formation of large vanadium flowers, flocs will not be filtered from the static and dynamic ring gaps, to avoid the scene of the running mud.
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Great wealth roots in purification of sewage, which turns the Earth into a healthy planet.

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