INTRODUCTION 5.3: The Decanter Centrifuge Made by GN Solids Control Company

In this article,
we will continue to introduce the key features with GN’s decanter centrifuge.

  •  Easily adjustable fluid outlet on the drum;

in order to change the drying degree of solids or clarity of liquid, the size
of fluid outlet on the drum needs to be changed by customer.

GN’s centrifuge, there are 6 fluid outlets at the big end of the drum and there
is a cover plate mounted on each outlet by bolts. It just needs to loosen the
bolts and angle the cover plate and the outlet size could be changed easily.

  •  Feeding fluid from the big end of centrifuge; 

all GN’s centrifuges, the drilling fluid goes into the centrifuge from its big
end. Compared with feeding fluid from the small end of centrifuge, on some
extent it will improve the working efficiency by feeding fluid from the big end
of centrifuge.

  • Parts from world-famous suppliers;

bearing is 1 of the most important parts for the centrifuge. With GN’s
centrifuge, all the bearings are world-famous brands like SKF (Switzerland
brand), NSK (Japan Brand), FAG (Germany Brand).

All the electrical components used in the electric cabinet are also from famous
brands like SCHNEIDER (France Brand), SIEMENS (Germany Brand), CHINT (China
Brand), ABB(Switzerland Brand).

example, for the inverter of GN’s variable speed centrifuge, it is from ABB

adopting these high-quality parts, GN guarantees to provide the best centrifuge
with perfect work performance and longer life to all the customers from the

  • Explosion-proof property;

Exd Standard;

Positive Pressure Type;

the motors and electric cabinet with GN’s centrifuge get through the IEC and
ATEX certification and could meet the explosion-proof requirement in developed

  • PLC intelligent control 

the electric cabinet of GN’s variable speed centrifuge, it has a graphic user
interface and is PLC intelligent control, which could achieve centrifuge’s
self-protection and guarantee its most effective work.

INTRODUCTION 5.2: The Decanter Centrifuge Made by GN Solids Control Company

In this article, we will mainly introduce the key features about the
centrifuge manufactured by GN. 

1. From minimum 40GPM to maximum 484 GPM, GN’s Centrifuge could meet
the treatment capacity requirements in different industries. Like oil & gas
drilling industry, HDD & CBM industry, water well & geothermal well
drilling, industrial waste water treatment, etc. 

2. Besides, fixed speed & variable speed, standard configuration
& high configuration are also available and provide different options for
the customer.

  • High-class raw
    material and manufacturing process

1. Drum                               

1).As 1 of the core parts of centrifuge, some company adopts the
manufacturing process of sand casting or solid-solution treatment. But the drum
of GN’s centrifuge is made from S304 or duplex 2205 stainless steel by
centrifugal casting, which could guarantee the drum rotates steadily at a
higher speed and gets a longer life. 

2).The solids
discharge ports on the drum and the fluid ports on the helical pusher are
protected by special ceramic insert.

2. Helical Pusher

1).The helical
pusher of GN’s centrifuge is S304 or S316 stainless steel. By special
solid-solution treatment over 1000℃, the helical
pusher get a higher strength and longer life. 

2).Besides, as the
helical pusher is used for pushing the solids continuously when working, the
wear of the pusher will be serious if no protection. There are special Tungsten Carbide tiles or Ceramic Tiles fixed around the
edge of pusher for protection. The tiles have long life and are easily for replacement. 

  • Compact Structure

1). Usually, there are
2 motors (primary motor and secondary motor) equipped with each centrifuge. Compared with the
centrifuge made by some company, GN’s centrifuge has a much more compact structure,
as the 2 motors are installed at the same end of centrifuge, which also gets a
bigger space and facility the maintenance.

the secondary motor connects directly with the gear differential so that the
belts are also left out.

INTRODUCTION 5.1: The Decanter Centrifuge Made by GN Solids Control Company

In this article, we mainly introduce the different types of centrifuge
that manufactured by GN Solids Control. Now we will classify the decanters
based on different features. 

Treatment Capacity

Based on the treatment capacities, GN could manufacture 5 different decanters.
The capacity is from minimum 40GPM to maximum 484GPM, which could meet the
requirements from customers in different industries. The details are as below,

Centrifuge Speed

Based on the centrifuge speed, GN has 2 different choices for customer
option with each type of centrifuge.

l  Fixed Speed: the
speeds of drum and helical pusher are fixed and could not be changed by

l  Variable Speed: the
speeds of drum and helical pusher are variable and customer could chose and set
the speed according to requirement. It will be very convenient for the customer
and also helpful for improving the work efficiency.

Like the Model GNLW223 centrifuge, the speed could be 3800RPM or


With each type of centrifuge, GN also has the standard configuration and high
configuration for customer option. Actually both of the 2 configuration’s
centrifuge, Here GN are committed to good quality and perfect performance. 

Compared with the centrifuge with standard configuration, the
centrifuge with high configuration will be much better on some aspects, such

  • Raw Material

The former drum is made from S304 stainless steel by centrifugal

The latter drum is made from Duplex 2205 stainless steel by centrifugal
casting, the ram material is better;

  • Bearings

As we know, the bearings are 1 of the most important parts with
centrifuge and its quality will influence the work performance directly. DN
adopts the bearings from world famous brand for both of the 2 configurations:

The former bearings are from NSK/FAG;

The latter bearings are from SKF.

In the next article, we will introduce the key features about GN’s
centrifuges, please stay tuned.

Finally, if you
want to know more about GN Solids Control, welcome to visit GN’s website and
contact us.

look back of GN Solids Control 2015

is a tough year for oil and gas market. The crude oil price tag keep getting
down and also down. More and more rigs turn up especially in US as well as
Europe. So many small corporations cannot survive in this challenging
condition. But it is good that will GN Solids Control remains and keeps
growing. The main reason is the fact,
GN Solids Control
simply focus on high quality products and supplied with
reasonable and aggressive price. GN does certainly not make low quality
products for you to damage its reputation.
Go searching year 2015, GN tends to make great jobs in the year. Listed below
we list part of the difficulties.
1) The Second GN Beijing factory is fabricated nicely and finished decoration.
It really is with the similar size with all the main factory. The new
manufacturing line have bought in. GN Solids can offer a bigger developing
capacity from the coming beginning of the year.
2) GN upgraded the primary equipment line: drying shaker, vertical cuttings
dryer, decanter
, screw conveyer, shale shaker, mud agitator, mud
gun. The updated style and design can suit more complex issue. GN get very good
suggestions from jobsite for the completely new models. They likes the brand
new feature and feedback the brand new features make the equipment easier to
use and improve the performance significantly.

3) GN finished normal drilling mud system style. The standard design can fits
most conditions, the customers like the standard design. GN Solids Control
always continues stock for the standard style and design mud systems, So Some
remarkable company can dispatch the entire mud system to consumers immediately
after they make order. Often the mud
recycling system
GN can offer in stock:
Financial standard desanding plant intended for HDD, CBM, piling…: GNMS-200D
FOR 200gpm, GNMS-500D with regard to 500gpm.
Advanced standard mud system system for HDD, CBM and water properly drilling:
GNMS-200G for 200GPM with mixing system, GNMS-500G for 500GPM with mixing
system, GNMS-500GL for 500GPM with mixing system with a larger storage

INTRODUCTION 4: GN Desilter’s Application in Treating the Drilling Fluid

Desilter, which is
another kind of solids control equipment for treating the drilling fluid. In
this article, we will mainly introduce the Desilter made by GN Solids Control. 

Actually compared
with the desander, the desilter has the same working principle, similar
structure and different configurations for customer option.

Usually desilter
is matched together with the shale shaker and desander and used for doing the
3rd-stage separation with the drilling fluid. 

Most of the big
sizes of drilling cuttings over 40μm will be separated after being treated by the shale
shaker and desander. In next step the drilling fluid goes into the desilter and
most of the solid particles over 20μm are separated out from the fluid and the drilling
fluid become much more clear. 

The main part of desilter
is also the hydrocyclones, but the size is different with the desander’s. Each
hydrocyclone used on GN’s Desilter are 4 inches and its standard treatment
capacity is 20m³/h. Usually 8 units, 12 units or 16 units
of hydrocyclone are standard configuration on GN’s Desilter, the corresponding standard
treatment capacity is 120m³/h, 240m³/h and 360m³/h. It is also customized and the customer could choose
specific quantity of hydrocyclone for different treatment capacity. 

In most of the
time the desilter is recommend by GN Solids Control to be combined together with
1 shale shaker (the desilter & shale shaker AIO), as the separated solids
particles could be further dried by through the shale shaker’s screen and the drying
effect could be better, especially for the weighted drilling mud.

the customer needs the desilter, shale shaker and desander to be combined together
and turned into an all in one machine because of being limited to the space,
Now GN has the “Mud Cleaner” for customer option. 

if you want to know more about GN Solids Control, welcome to visit GN’s website
and contact us.