Tag Archives: Best Quality Centrifuges

Before hydrocyclones and centrifuges became available for drilling applications, shale shakers and dilution were the only means of controlling the solids content of drilling fluids.

decanter centrifuge

Yesterday, DC Solid control company shipped 3 sets middle speed drilling fluid centrifuge to Russian drilling site. Centrifuge used in drilling solids control is the decanter type. Almost the centrifuge used at drilling site are horizontal type. There are bowl, drum, conveyor, motor, control panel consisted in centrifuge assembly. Of course, also the support base or base frame.

drilling fluid centrifuge

Decanting centrifuge in drilling fluids system is used after desilter cone or mud cleaner. It can handle the solids ranged 2-7 microns. There are middle speed and the high speed one, the fixed frequency or VFD one. Treating capacity / handling rate varies along with centrifuge size. Usually, it is from 30~60m³/h. We can select screw pump or slurry pump as feeding pump.

Please find more information on DC solids control site. Or you can contact us freely. DC provides the high quality solids control decanter centrifuge,

The decanter centrifuge has been widely applied in drilling fluids solids control system. Due to the high rotation speed provided by decanter centrifuge, if any abnormal situation happend in use, stop running and check for solution immediately.

SONY DSC

Solutions to common problems of decanter centrifuge:

Problem 1: excessive vibration of decanter centrifuge.

Reasons and solutions:

1. The solids particles settled in bowl have not been cleaned thoroughly–clean it.

2. Defective shock absorber–change it for new one.

Problem 2: overtemperature of bearings. (above 75℃)

Reasons and solutions:

1. Lack of lubricating oil–oiling the bearings.

2. Wear of bearings–change the damaged bearings.

Problem 3: the bowl doesn’t work when the main motor is activated.

Reasons and solutions:

Main motor overload for excessive solids particles set in–clean the bowl and adjust the grout intake.

Problem 4: abnormal noise is heard from bowl.

Reasons and solutions:

1. unsuitable usage of lubricating oil, such as improper oil type or volume–check and adopt suitable oil.

2. bearings damaged–change for new ones.

Decanter Centrifuges are popular solid-and-liquid separators used in multiple industries for a wide array of products. Decanters are used for the extraction of liquids from large proportions of solids. It makes use of medium-low speed suspension to process larger capacities of solids as compared to a Basket Centrifuge.

decanter centrifuge

A typical example of this type of two-phase separation is the dewatering of sludge from municipal sewage plant or industrial waste water treatment.last week, DC Machinery shipped a set of decanter centrifuge for India wasterwater procesed factory. Th model of the centrifuge is DCLW350-1200 and treating capacity is 15m3/h. With high speed and frequency conversion.

In this case, the residual moisture in the dewatered solids determines the disposal costs and the centrate quality determines the pollution load returned back to the treatment facility. Minimizing both must be achieved at the lowest possible cost, with the lowest possible polymer and energy consumption, with low maintenance costs and with the lowest possible number of required operating staff.

The decanter centrifuge consists of a solid bowl, which rotates and contains the process. A screw conveyor, contained within the bowl, turns at a slightly different speed from the bowl. If you have interest with it, please feel free to contact DC solid control.

DC Machinery have been developed for many which support many domestic and foreign customer to process and separate the waste water and other plant liquid treatment and got good feedback as well .

Decanters are horizontal, solids-oriented, solid-wall scroll centrifuges. They are primarily used for the clarification of suspensions and sludge with relatively high solids concentrations,but also for the separation of liquids with simultaneous removal of solids.

DCGLW250-980N Decanter Centrifuge 01

Application areas include below fields:

the cleaning of wash water and the treatment of fruit and vegetables in the food industry
the recovery of animal and plant oils and fats
the production of herbal medicines, copper extraction
chemical extraction in the paper industry
the treatment of waste oil for power generation
waste water treatment in sewage treatment plants
use on oil platforms for the extraction of crude oil and so on

decanter centrifuge

Features of DC Machinery

All parts coming into contact with the product are made of stainless steel.
3-phase AC motor for controlled torque starting via frequency converter
Approximately 80 to 90 % of the oil is recovered.
Low personnel costs due to continuous and automatic operation.
Highest g-force for higher solids output
Adjustable bowl speed via VFD
Automatic adjustment of differential speed via VFD
Two motor drive
Belts for both primary motor and secondary motor】

The Decanter centrifuge can be used for the pre-treatment for the algae biomass for the disk separator or tubular separator thus it effective higher the disk centrifuge or tubular separator capacity performance .

The decanter centrifuge is a horizontal centrifuge with continuous feeding and continuous discharging. The settling speed is determined by particle size, particle shape, difference in density between solids and liquids as well as their viscosity.