Decanter Centrifuge Submersible Screw Pump For Offshore Platform

APG Screw pump for decanter centrifuge in oil drilling mud system

APG Screw pumps are for decanter centrifuge feeding. Compared to the submersible slurry pump, such a pump is a higher price and it's horizontally installed instead of the vertical position. It's a positive-displacement pump consisting of one or more screws to move fluid or solids along the axis. For drilling mud process systems, the screw pump is usually the single screw rod. 

Please check below technical specifications for your reference.

Screw pumps mainly consisted of the discharge port, the stator, the rotor, the flexible section, middle axis, suction room, seal, bearings, driveshaft, bearing body. Among these parts, the wearing parts are the rotor and stator. The screw pump wet parts can be made of stainless, steel, and high-quality rubber. According to different fluids content and property, we'll provide a certain configuration on screw pumps. For example, for the abrasive material, we kindly suggest using special rubber instead of stainless steel. As we know, the S.S can't adapt abrasive material but corrosive material. Compared to other pumps, screw pump is not easy to lead swirl. This helps much to maintain pump capacity. It is not sensitive to viscosity so it is capable to transfer material with high viscosity

Screw pump transfer drilling fluid via the screw conveyor rotation. The Center screw pole is the positive pole, the two sides screw conveyor are the negative pole. Negative poles rotate in the opposite direction from the positive pole.

Actually, when the screw axis is rotating, the lower Vroom will become large. Vroom will close against fluid sucked. The closed room will be pushed forward along the axle. Then a new suction cavity generates on the suction end. One and one closed cavity move forward, the fluid will be pressed out.

How to select a screw pump? Yes. It's depending on the centrifuge flow rate request. The screw pump APG series holding a capacity from 8m³/h-350m³/h. Besides the solids control system, a screw pump can be used in other applications, too. For the drilling mud process, the centrifuge feeding pump is a rather typical use of a screw pump. Compared to other pumps, screw pump holding shorter life or operation life considering the wearing parts. But it's a compact and high effect, many users prefer it then

Single screw pump
XG, XL series
Like Netzsch NM, N series
(1). Single screw pump
1. Horizontal installation
2. The special gear decelerated motor drive makes the structure more compact and reliable.
3. Equip with the electric or mechanical timing device can carry out the variable output.
4. Optional operating protective devices.
5. Capacity up to 500m3/h.
6. Pressure up to 2.4MPa or higher.

(2). Delivery Media
1. Different viscous liquids, especially for the liquids with high viscosity which are difficult to be pumped.
2. Different dense liquids.
3. Liquids that contain solid particles, fibers, and suspending materials.
4. Intermixtures of liquid, air, and solid.
5. Sensitive liquids that can not be churned, sheared, and compressed.
6. Corrosive liquids.

(3). Application Area
A. Environmental engineering
1. Separate oil from water and desulfurize from waste air.
2. Metering dose of flocculation and another chemical compound.
3. Delivery of all kinds of sewage.

B. Paper making industry
1. Dregs slurry and wastewater treatment.
2. Metering for chemical slurry.
3. Spreading and coloring process.
4. Preparing for the material.

C. Mine industry
1. Producing and preparing for the titanium white powder, kaolin, and carbonate.
2. Feeding whirl fluid body and filtrate body on the material.
3. Dosing with chemical slurry.
4. Electrolyte treatment.

D. Chemical industry and pharmaceutical industry
1. Various pasted liquids.
2. Various milky liquids.
3. Various suspending liquid.
4. Liquids that contain air or solid.
5. Liquids that can not be churned or sheared.

E. Oil industry
1. Viscous oil delivery
2. Mixed delivery of oil and air.
3. Separated oil from water and waste oil recovery system.
4. Sewage treatment.
5. Polymer delivery.
 

For any interest or demand on the centrifuge screw pump, please feel free to contact us. You will get a free offer very soon.