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Product Description
Volute Screw Press Sludge Dewatering Machine For Sewage Sludge Treatment
Structure and Working Principle
There is a back pressure plate at the sludge outlet to adjust the pressure in the spiral cavity. The
spiral sludge dewatering machine completes the thickening and squeezing and dewatering of the sludge in one cylinder, replacing the traditional filter cloth and centrifugal filtration
method with a unique and subtle filter body mode.
The core part of the screw sludge dewatering machine is one or several groups of filter units
composed of a screw drive shaft, multiple fixed laminations and multiple floating laminations. Each filter unit is divided into two parts: concentration section and dehydration section.
From the sewage inlet of the concentration section to the mud cake outlet of the dewatering section, the pitch of the screw shaft gradually decreases, and the gap between the fixed ring and
the moving ring gradually changes. small.
Parameters
Model
DS Standard Capacity(kg/h)
Sludge Treatment Capacity(m³/h)
Low Concentration
High Concentration
2000mg/L
4000mg/L
10000mg/L
20000mg/L
25000mg/L
50000mg/L
MDS101
3
6
1.5
0.75
0.6
0.3
0.24
0.12
MDS131
6
12
3
1.5
1.2
0.6
0.48
0.24
MDS132
12
24
6
3
2.4
1.2
0.96
0.48
MDS201
12
20
6
3
2
1
0.8
0.4
MDS202
24
40
12
6
4
2
1.6
0.8
MDS301
30
60
15
7.5
6
3
2.4
1.2
MDS302
60
120
30
15
12
6
4.8
2.4
MDS303
90
180
45
22.5
18
9
7.2
3.6
MDS351
60
120
30
15
12
6
4.8
2.4
MDS352
120
240
60
30
24
12
9.6
4.8
MDS353
180
360
90
45
36
18
14.4
7.2
MDS354
240
480
120
60
48
24
19.2
9.6
MDS401
100
170
50
25
17
8.5
6.8
3.4
MDS402
200
340
100
50
34
17
13.6
6.8
MDS403
300
510
150
75
51
25.5
20.4
10.2
MDS404
400
680
200
100
68
34
27.2
13.6
Features Of Sludge Dewatering Machine
NOT EASY TO BLOCK: unique dynamic and static ring filter slot structure makes the device not easy to
block;
CONTINUOUS AUTOMATIC OPERATION: automatic control is adopted, no personnel are
required to operate the equipment, and 24 hours of continuous unmanned operation;
SAVING OPERATION COST: integrated design, compact design, significant savings in operating costs;
24-hour fully-automatic unmanned operation, greatly reducing labor costs; equipment covers a small area, reducing civil engineering investment;
LIGHT WEIGHT AND DURABLE: The body is almost entirely made of stainless steel, and the replacement
parts are only the spiral shaft and the moving ring, which have a long service life and are durable;
Working Process
1. Thickening: When the screw drive shaft rotates, the multiple solid and active laminations arranged on
the periphery of the drive shaft move relative to each other. Under the action of gravity, water is filtered out of the relatively moving lamination gap to achieve rapid
concentration.
2. Dewatering: The concentrated sludge moves forward with the rotation of the screw shaft; along the
direction of the mud cake outlet, the pitch of the screw shaft gradually decreases, and the gap between the rings gradually decreases, and the volume of the spiral cavity Constantly shrinking;
under the action of the back pressure plate at the outlet, the internal pressure gradually increases. Under the continuous continuous operation of the screw drive shaft, the water in the sludge
is squeezed and discharged, and the solid content of the filter cake continues to increase, finally achieving sludge Continuous dehydration.
3. Self-cleaning: The rotation of the screw shaft pushes the moving ring to continuously rotate. The
equipment relies on the movement between the fixed ring and the moving ring to achieve a continuous self-cleaning process, thereby cleverly avoiding the common blocking problem of traditional
dehydrators.
