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How much do you know about the screw sludge dewatering machine?

How much do you know about the screw sludge dewatering machine?

Oct 03, 2020

Screw-stacking sludge dewatering machine for short, it is a new type of sludge dewatering process introduced from Japan. It is currently widely used in municipal, slaughter, food, chemical, pharmaceutical, papermaking, printing and dyeing industries for sludge dewatering. With the strengthening of environmental protection supervision, sludge treatment is getting more and more attention. In order to improve the efficiency of sludge treatment, let's talk about the working principle of screw stacking machine. I hope it can be helpful to everyone.


The screw stacker is composed of a screw stack dehydration main body, a flocculation tank, a sump, a control cabinet and a support. If a complete sludge dehydration system is to be formed, the screw stacker also needs a supporting flocculant dosing device and a sludge pump And sludge conveying device. The dewatering body of the screw stacker adopts the combination of dynamic and static rings and screw shafts. Through the principle of screw extrusion, the filtrate is continuously filtered from the gap between the dynamic and static rings, and the mud cake is continuously discharged from the mud outlet to achieve rapid solid-liquid separation. The working principle of the screw stacking machine is different from that of the traditional filter press. Instead of using filter cloth, it uses 304 stainless steel dynamic and static rings. It has strong wear resistance, corrosion resistance, long service life, and is not easy to block. The work is continuous Non-intermittent, much higher degree of automation, unattended, continuous operation for 24 hours. The sludge stacking machine can process the sludge concentration from 5000mg/L to 50000mg/L (water content from 95%-99.5%). It is a low-concentration direct concentration and dehydration integrated machine, without the need to build a thickening tank, unlike a plate frame Filter presses, belt filter presses, and centrifuges need to build thickening tanks. Because the screw stackers use low-speed motors and low power, they consume at least 40% more energy than other sludge dehydrators.