Tag Archives: Decanter Centrifuge For Sale

Wastewater treatment plants for both municipal and industrial applications are designed to produce a clean, safe water discharge, usually to a river. The complexity of the plant will depend on the immediate environmental considerations and the consent limits negotiated with the authorities.

More and more our horizontal spiral decanter centrifuge already used in municipal applications and got the good feedback.

There are basically two application types in the wastewater treatment industry for the decanter centrifuge:

1. The first is to take liquid slurry (around 1-3% ds.) as feed to the decanter and thicken it to around 8% ds, often prior to going to a biological digester.
2. The second is to feed the decanter centrifuge with similar slurry and dewater the solids to a dry looking solids mass prior to disposal. In the second case the solids can come from the primary clarifier or the secondary clarifier after biological treatment.

waste water processed

DC Machinery range of decanter centrifuges is ideally designed for these applications. Controlling the decanter centrifuge operating parameters optimizes the consistency of the discharged sludge.

You are welcome to contact Tangshan Dachuan Machinery to get more detailed infos, we will supply our best service for you.

We all know, decanter centrifuge works principle is centrifugal force precipitate. And the main part to realize the separation is the drum. But do how much do you know the drum. Following is the description of the decanter centrifuges drum.

Drum diameter-D

In the condition of other ceteris paribus, the production capacity of centrifuge is directly proportional to D3. According the size of diameter, foreign centrifuge have already serialization. The diameter is stated by our country is 200, 450, 600, 800, 1000mm. The diameter of foreign centrifuge is 6, 8, 10, 16, 20, 25, 30, 40 in.

We know that when centrifugal force is equal, the drum diameter is bigger, the rotary speed is lower. The retention time of solid phase particles in drum is longer, it can make fine solid phase particles have full times to settle to the wall of drum in the function of centrifugal force and discharged through screw pusher.


Drum length -L

Usually the drum length according to the diameter ratio to confirm, to the difficult separation material, the major axis ratio is 3-4. The length of drum is big, the volume of centrifuge setting pond is big, the retention time of solid phase is longer, so the separation effect is good. But the major axis ratio is limited by manufacturing technique and dynamic balance, so it can evaluate at well. To the difficult separation suspension liquid, the most reasonable method is improving the long diameter ratio in the condition of small diameter.


Drum shape

The drum shape has cone and tapered column the two basic structures. When drum length and diameter is fixed, the tapered column can provide bigger internal precipitation space to make the retention time of solid phase particles is longer in drum, the separation ability is stronger. Compared with cone drum, one is in the condition of treating is unchanged can keep the lower separation sizes; two is the throughput is bigger but the solid phase separation size is not changed. Because these reasons, drilling fluid treatment used centrifuge all use tapered column drum.

Decanter centrifuge is an important equipment in many industries which can separates the particles whose diameter is 5-7um can fully sufficed the environmental demands and save construction cost. That is why more and more users choose decanter centrifuges for the last stage separation unit.

A DCLW450-1258(VFD) decanter centrifuge is assembling and prepare to delivering Singapore TBM fields. After many times commissioning, the centrifuge has already achieved to the satisfactory effect.

decanter  centrifuge (1)

This decanting centrifuge is driven by two motors. The main motor drives the drum and differential shell rotation by the belt . The vice motor drives the spiral through the differential variable speed. The drum and spiral rotate together in the same direction, but at different speeds. The heavy solids will be push to the pulp mouth by the screw propeller and the liquid phase will flow out from the bottom flow mouth.

decanter  centrifuge (2)

Tangshan Dachuan Machinery is a professional manufacturer of drilling mud cleaning equipment, our product line including shale shaker, desander, desilter, centrifuges, centrifugal pump, mud tank and ect. Our equipment got the warmly received from new and repeat clients based on its high cost effective. Believe that, DC mud cleaning supplier is your best choose.

Today, we got the news from my Siberia clients, he said, “I was so proud that our decanter centrifuge works properly in the bad environment”.

The client is our old friend for about 2 years, and we have already manufactured 7 sets solid control system for them.


The reason why we can always successfully cooperate is our lowest price and high quality product got their trust. We never ignored any details in product quality and service.

decanter centrifuge

DCLW364 VFD centrifuge is the frequency conversion centrifuge, it has a independent frequency control box to control centrifuge drum rotary speed and get the different treating capacity. Now this model of centrifuge have been accepted by many users based on its flexible operation and lower price.

Meanwhile, we also can customize all kinds of different decanter centrifuge accoriding to clients different requirements, if you have any questions please contact us soon.

Decanter centrifuge is the third stage of solid control equipment which is most important in the whole solid control system. It can separate 2-7um solid phase, whose the treatment effect is very ideal.

In order to meet abroad clients requirements, DC Solid control manufactured 2 sets centrifuge to be as inventory. One is DCLW450-1000, and the other is DCLW360-1200VFD.


DCLW450-1000 decanter centrifuge is a very popular model, users are very satisfied with its treatment effect and the reasonable price. Usually ZJ1000, ZJ2000 and ZJ3000 use the model centrifuge. The drum diameter is 450mm, and drum length is 1000mm. Its normal treating capacaity is 30-45m3/h. Ads we know the most important part of centrifgue iss the drum materials, the DCLW450-1000 drum material is #304 stainless.


Meanwhile, DC Solid control DCLW360-1200VFD decanter centrifuge is also a popular centrifuge, but it is the dual Frequency centrifuge with a big control box to adjust the rotation speed.  Its max speed is about 3900rpm, typical speed is 3200rpm and bowl speed(VFD) is from 0-3900rpm. Max treating capacity is 40m3/h which can separate 2-5um solids. It is widely used in ZJ3000, ZJ4000 and other drill rig.

Now DCLW450-1000 and DCLW360-1200VFD centrifuges are in inventory, and with the most favorable price compared usual price, and if you have need of it please don’t wait and fell free to contact us, you will buy the centrifuge as the lowest price and high quality.

The drilling mud centrifuge is used for the recovery of barytes, cleaning the fine solid phases, decreasing the volume of solid phases in the drilling mud and guaranteeing the        performance of drilling mud。DCLW series is a normal decanting centrifuge mode of our company, they are ideal choices for separating particles in drilling mud. Decanting Centrifuge separate the suspending fluids using the principle of centrifugal action, the suspending fluids are pushed into the rotor drum through the inlet pipe and the fluid hole of the spiral feeder.

Feature of DC decanting centrifugal

a User friendly advanced control technology

b Screen and Solid bowl configurations

c Bowls range from 150mm – 1400mm Diameter

d Sealed and pressure-tight construction

e The screw propeller and solids discharge made from stainless steel Stainless Steel protected by  tungsten carbide alloy.

f Screw propeller & Solids Discharge Stainless Steel protected by  tungsten carbide alloy.

g Southwest Petroleum University Technology Support 

The DCLW decanter Centrifuges boast infinite speed adjustability of main bowl drive and backdrive (differential). Utilizing variable frequency drives on all motors allows low amperage start-ups and eliminates troublesome sheave changes. Stainless steel wetted parts, tungsten carbide hard facing on bowl and scroll, as well as superior gearbox construction.

DC uses high quality stainless steel on all surfaces that the processed material comes in contact with.