Auto Dewatering Equipment Screw Press Machine for Aerobic Sludge Treatment

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  • Overview
  • Product Description
  • Working principle
  • Product Parameters
  • Our Advantages
  • Application
  • Detailed Photos
  • Customer Site
  • Packaging & Shipping

Basic Info.

Model NO.
Physical Treatment
Printing and Dyeing Enterprises
Transport Package
Wooden Box
3200x800x1700 mm
HS Code
Production Capacity

Product Description

Product Description

A screw press is a machine that uses a rotating screw to press sludge against a permeable filter to drain water and produce a dry sludge cake.

The screw press is composed of a screw stacking body, a driving device, a filtrate tank, a flocculation tank, a frame, etc. The stacked screw body is composed of a fixed ring, a movable ring, a screw shaft, a screw, a gasket, and a connecting plate. The fixed rings and the movable rings are stacked on each other, and the screw shaft runs through it to form a filter body. It can be used in biochemical pharmaceuticals, petroleum refining, power plant wastewater, municipal wastewater, brewing wastewater, coal washing wastewater, chemical wastewater, printing, and dyeing paper making, and food industries.
Working principle

Auto Dewatering Equipment Screw Press Machine for Aerobic Sludge Treatment

1. Concentration: When the helical push shaft rotates, the multiple fixed and active laminations set on the push shaft move relatively, and under the action of gravity, water is filtered out from the gaps between the relatively moving laminations to achieve rapid concentration.
2. Dehydration: The concentrated sludge moves forward continuously with the rotation of the screw shaft; along the direction of the mud cake outlet, the pitch of the screw shaft gradually decreases, the gap between the rings also gradually decreases, and the volume of the screw cavity Continuous shrinkage; under the action of the back pressure plate, the internal pressure gradually increases, driven by the continuous operation of the screw drive shaft, the water in the sludge is squeezed out, the solid content of the filter cake continues to increase, and the continuous dehydration of the sludge is realized.

3. Self-cleaning: The rotation of the screw shaft drives the moving ring to rotate continuously. The equipment relies on the movement between the fixed ring and the moving ring to realize a continuous self-cleaning process, avoiding the clogging problem of the traditional dehydrator.
Product Parameters




Sludge Capacity(10000mg/L)

Dimension (L x W x H)

Weight (kg)

Running Weight
HDL131 SS 304 ~ 6 -- 10 kgds/h ~1.0 2000x660x1040 mm 190 300
HDL201 ~ 9 -- 20 kgds/h ~1.5 2500x800x1450 mm 320 550
HDL202 ~ 18 -- 30 kgds/h ~3.0 2600x950x1450 mm 470 680
HDL203 ~ 27 -- 45 kgds/h ~4.5 2700x1100x1450 mm 620 920
HDL301 ~ 30 -- 60 kgds/h ~6.0 3200x800x1700 mm 600 1100
HDL302 ~ 60 -- 100 kgds/h ~12 3400x1250x1700 mm 1350 2050
HDL303 ~ 90 -- 150 kgds/h ~18 3600x1600x1700 mm 1820 2580
HDL304 ~ 120 -- 200 kgds/h ~24 3600x2050x1700 mm 2400 3520
HDL401 ~ 100 -- 150 kgds/h ~15 4000x1000x2200 mm 1100 2500
HDL402 ~ 185 -- 350 kgds/h ~30 4050x1420x2200 mm 1900 3600
HDL403 ~ 400 -- 600 kgds/h ~45 4050x1800x2200 mm 3050 5250
HDL404 ~ 480 -- 800 kgds/h ~61 4400x2650x2350 mm 5150 7200
Our Advantages

Various types of products, exquisite design, small footprint.

Compared with the traditional belt type, plate frame, and centrifugal dewatering machines, the screw press adopts the three-in-one design of the dehydration body, the flocculation mixing tank, and the electric control device, which is portable to install and occupies a small space, greatly reducing the design and construction cost. At the same time, there is no need to re-construct the replacement project due to the exquisite design of the stacked screws.
Simple operation and maintenance.
The 24-hour fully automatic unmanned operation can be realized through various methods such as PLC remote control, reducing operator's employment and maintenance costs. At the same time, due to its exquisite design, it is easy to learn and operate.
Water saving, power saving, low noise.
The screw press has a self-cleaning function and does not require a lot of cleaning water for clogging. Compared with other dehydrators, the flushing water consumption of the screw press is one percent of that of the belt dehydrator. The rotation speed of the screw shaft is 2-5 revolutions per minute, and the power consumption is low, which is economical and applicable.  At the same time, due to the low speed and intermittent flushing, the equipment runs without noise.

Municipal and sewage treatment: Most of the sewage from municipal sewage plants comes from urban domestic sewage, in which the content of organic sludge is high. The screw press dehydrates well, has low energy consumption, and can run unattended all day, so the screw press is suitable for municipal sewage factories.

Printing and dyeing enterprises: The pollutants in the sewage of printing and dyeing factories are complex. The water quality of this kind of sewage changes greatly, and the content of organic sludge is also relatively high. However, the screw press is used to deal with this kind of dye and fiber impurities. The dynamic and static ring pieces for the screw press Instead of the traditional filter cloth, there will be no clogging.

Papermaking and tobacco enterprises: The sewage produced by papermaking and tobacco has a large proportion of plant fibers and detergent additives. Among them, the water of pulp and cut tobacco is relatively alkaline, which is easy to corrode the machine and accumulate mud. With self-cleaning function, no residue left, and longer service life.

Beer and fruit juice enterprises: Wastewater mainly contains fruit peels, additives, fibers, carbohydrates, and alcohol. Due to the high content of organic matter, it is easy to become rancid and fermented. The screw press is relatively easy to treat juice beer sewage. The machine is made of 304 stainless steel, which is wear-resistant and anti-corrosion and is more suitable for juice brewery applications.

Starch and pharmaceutical companies: The wastewater produced in the process of starch and pharmaceuticals contains a lot of small molecule organic matter and is easily soluble in water. The screw press realizes the overall completion of flocculation and dehydration, ideal mud output, and relatively clear discharged water.

Filter Cakes
Auto Dewatering Equipment Screw Press Machine for Aerobic Sludge Treatment

Detailed Photos

Auto Dewatering Equipment Screw Press Machine for Aerobic Sludge TreatmentProduction Workshop
Auto Dewatering Equipment Screw Press Machine for Aerobic Sludge Treatment

Auto Dewatering Equipment Screw Press Machine for Aerobic Sludge Treatment

Customer Site

Auto Dewatering Equipment Screw Press Machine for Aerobic Sludge Treatment

Packaging & Shipping

Auto Dewatering Equipment Screw Press Machine for Aerobic Sludge Treatment

Auto Dewatering Equipment Screw Press Machine for Aerobic Sludge Treatment

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