Month: January 2016

We are negotiating our first AD grit removal contract (potential 3000 ton). We will use the unit that is on the way for this.
We are putting a package together for sewage sludge, consisting mainly of rags and grit separation. First process will be the removal of the rags and for this we will have to make adjustment to a single deck shaker by adding spray bars underneath the shaker deck to be able to clean the mesh if it gets blocked. We can do this as a retrofit here but would prefer if it can be designed and constructed in your factory. We will need a buffer tank with pump to feed the spay bars incorporated in the unit ( fresh water fed). Video attached. We are looking at shaker:
GNZS703E-DZ  one or two units to match 240m3 desander
After removal of the rags we have to deal with the grit and believe this should be done with a standard desander unit. GNZJ703E-D1S8N/ GNZJ703E-2S12N
We might want to add on to this a desilter unit or small centrifuge. The water for the spray bars can come from fresh water supply and does not have to be recycled as disposal of water is not a problem at sewage treatment plants.
All to be mounted on a tank with appropriate compartments.

We might need a suction pump (chopper pump type) to chop rags up to smaller bits and to deposit on the first shaker.https://www.youtube.com/watch?v=zhTEjFd-vxo
http://www.chopperpumps.com/
Ideally none of the units to be longer than 2500mm so we can fit it broadways onto the lorry deck, together with walk ways and access ladder.

Before starting today’s article, we would like
to tell that the decanter centrifuge mentioned here is 2 phase type centrifuge
used in to separate the solids and liquid where the slurry is coming from the
drilling site. The slurry includes drilling fluids, oil sludge and so on.

Decanter Centrifuge Applications

On drilling site, the decanter
centrifuge is used in solids control system as the final stage solids
control equipment to remove the fine solids in the drilling mud or to recover
the barite in drilling fluids. While the decanter centrifuge can also be used
as a machine to polish the effluence discharged from the vertical cuttings
dryer in waste
cuttings management system. In the dewatering system, we can also find the
decanter centrifuge that is used to treat the flocculated slurry in which the
ultra fine solids can be separated out.

How to Operate Decanter Centrifuge as per
Request

GN’s 2 phase decanter centrifuge is always
used to separate solids and liquids. According to different request, we can get
the different discharges. If you want to get much dryer solids, you can
increase the feeding capacity, increase the rotating speed, adjust the liquid
level plate to a low position or reduce the differential speed. By doing any
one mentioned before, you can make the solids discharged much dryer. And if you
reduce the feeding rate, reduce the bowl speed, fix the liquid level plate on
the bowl big end to a high position or increase the differential speed, you can
get a much clear liquid. Sometimes, you need make adjustment for several of the
factors at the same time to get the expected result according the project
request. In dewatering system, the amount of flocculation agent added in the
fluids would change the dryness of the discharged solids and liquid.

GN’s latest C version decanter centrifuge
with VFD control
panel is an ideal machine to do all the above jobs, as it can be adjusted
easily via HMI system to run at RPM from 0 to more than 3000.

GN Solids Control equipment is
working in over 60 countries and areas. Good performance and reasonable price
win good reputation for GN Solids Control.

1)   
GN Agitator for Nigeria client

We
have one client from Nigeria engaged in solids control service. The client boss
is operation manager for Baker Hughes Nigeria before. He leaves the company and
starts his own company for over 3 years. During the past years, the client
always buy equipment from us, etc. decanter centrifuge, screw pump, centrifugal
pump, screw conveyors etc. Recently, the client buy 4 sets mud agitator to
replace the old agitators in the mud tank.

2)   
GN Centrifugal pump for Egypt
client

Egypt
is very important market for GN Solids Control. There
are lots of China brand rig working in Egypt, including big oil drilling rigs
and workover rigs. And solids control equipment is also in large demand every
year. Recently, we have one client from Egypt bought 30 sets centrifugal pump
for Halliburton project.

Formerly,
we only have big quantity of centrifuges, vertical cuttings dryer working in
North Africa, but now we also have many general solids control equipment
working there, eg. Centrifugal pumps, shaker screens etc.

3)   
GN brand decanter
centrifuge for Africa market

GN
brand decanter centrifuge is replacement centrifuge for Swaco centrifuge, or
derrick centrifuge, or NOV brandt centrifuges. They have similar working
principle, similar design, similar production material and also similar working
performance. That is why we call our centrifuge as replacement centrifuge for
USA brand centrifuges. In the past years, market share of GN centrifuge is
going up in fast speed. And the year production of GN centrifuge is also
doubled to meet the market demand.

GN
Solids Control, as China leading manufacturer of solids control equipment &
waste
management equipment, will surely support each client with high quality
equip9ment & reasonable price.

GN Solids Control can offer complete distinctive
line of solids control equipment, drilling
mud system. The power origin is various pumps; we live also original
manufacturer with regard to various pumps, including twist pumps, centrifugal
pumps, submersible slurry pumps, shear pumping systems etc .
Recently, we have a number of order ready for delivery, My spouse and i
concluded all the pumps useful for recent project, and find in which pumps
& electric control panels is also big benefit. There are 12 sets
centrifugal pumps, 4 sets submersible slurry pumps, 9 units of screw pumps.
GN Centrifugal pumps & Electric powered control panel
GN centrifugal pumps is replacement for NOVEMBER brandt mission pumps, Pump
shell and impeller is definitely wear-resisting material, pump having Kansai
heavy anticorrosive fresh paint, longer lifetime. We can go with solids control mud
system with centrifugal pump, we can easily also only sell typically the pump
for client’s precise application.
We generally can certainly match electrical control panel & cable to
connect by pump motor to control panel for convenient employ.

GN Submersible slurry pump & Electric control panel
GN Submersible slurry pump can be used for fluids move with big particles. Its
single stage and sole suction slurry pump. The actual pump shell and impeller
no bearing, no canal seal, which can transport wonderful medium of solids
contaminants.
The slurry pump might be installed in mud tank to transfer mud
available, can be installed on mud opening in HDD jobsite.
We are able to also match electric control panel & cable interconnection
from slurry pump generator to control panel.
GN Screw pump & Electrical control panel
GN mess pump is positive shift pump, ideal pump intended for feeding decanter
centrifuge, as well as to transfer other medium without having agitating.
It is composed of attach pump rotor and mess pump stator; these two pieces are
the major spare parts elements.
We generally use Uk brand Netzsch brand pump, with long-term relationship, we
can make better price for clientele.
We can also match power control panel & cable television connection from
slurry pump motor to control panel.
If you are in need of some penis pumps, pls contact GN SOLID WASTE CONTROL
VARIOUS PUMP.

What kind of waste materials can be treated
with thermal desorption unit (TDU)

Thermal desorption unit
(TDU) is mainly used to treat the waste solids discharged from drilling
waste management equipment, like vertical cuttings dryer, high G drying
shaker, decanter centrifuge, etc… In theory, all oil type solids whose vaporization
point is below 420 degree centigrade could be treated with thermal desorption
unit (TDU). The oil type solids above mentioned is oily waste with a certain
amount solids, like mixture of mud and sand, the oily sludge after tank
cleaning.

Functions of Thermal desorption (TDU) unit
for waste materials

The pyrolysis furnace roller in thermal
desorption unit (TDU) heat the waste material in spilling way, and the material
is pushed forward by shoveling plates weld with a certain angle on the roller’s
inner wall. If the material is only oily mud, the spilling character would be
lower. The Pyrolysis Oil can be used as fuel oil. Diesel and heavy oil can also
be used as alternative fuel type for the startup and running of the thermal
desorption unit.  

Many people are wondering if the thermal
desorption unit can be used to treat waste tires or not. Below explanation can
be taken for your information.

Generally speaking, the Thermal desorption
unit (TDU) is mostly designed and used for oily sludge or oil waste from oil
and gas drilling field. And it is suggested to be used only for oily sludge or
oil waste. In principle, it can be used to treat the waste tire. But you need
to take out the steel wire from the tires and chock it into small pieces and
add some extra material to prevent it to bond on the drum unit,. And the size
after bond is better no larger than 30mm*30mm*30mm. normally, the thermal
desorption unit (TDU) have the dust removal system for the gas, But depends on
the local regulations, you may need extra treatment system for the discharges.