Nov 21

GN BIG BOWL CENTRIFUGE

By far, the decanter centrifuge is a quite efficient equipment for separating the solids from the liquid, which is widely used in many industries form the winery, plant oil to the energy industry like the oil and gas drilling, waste management, cuttings treatment and oily sludge separation. Not long ago, 2 sets of GNLW764-VFD centrifuges were delivered to a desert jobsite for a coal mine project, for washing the coals.
When a place is remote, especially in a desert place, all resources are more precious than usual. In that project, the decanter centrifuges are only a part of the whole project but are playing an important role. They are requested to run continuously and to treat around 100 cubic meter material in each hour, in order to save cost by two means: one is to collect the limited water to be reused in next washing procedure, the second is to dry the coal and finally change it into money. The more water to be recycled, the lower cost the project pay for, and the more coal to be collected, the more benefit the project earn from.
Decanter centrifuges are one of GN Solids Control’s core products, and GN has centrifuges for different applications, including: mining and other industry, oil gas drilling solids control and waste management for the cuttings and drilling mud, oily sludge separation works like the waste treatment in refinery and from tank cleaning, the animal waste treatment in farmlands, food industry like the plant oil and wineries.
In a word, an efficient decanter centrifuge helps the end user to cut cost, save money and increase the final products quality, like the purer liquid and drier solids. If you have such need for centrifuges or need more information about centrifuge, welcome to contact GN Solids Control for consultancy.

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written by shale shaker \\ tags: , , , ,

Oct 27

Last week, one international contactor for mining industry started their project in Australia, among the separation line, two green colored equipment were significantly shown. They are big bowl centrifuges from GN Solids Control, a leading manufacturer for industrial separating equipment manufacturer based in China.

GN Solids Control has been designing and producing the separating equipment like shale shakers, mud cleaners, decanter centrifuges, vertical cuttings dryers for many years. At first, the equipment are mainly used for the oil and gas drilling solids control systems, and later, as GN’s quickly increasing development of technology and producing capability, GN Solids Control has enlarged its centrifuge model range from 14 inch bowl to bigger ones and smaller ones. Those 2 sets of GNLW764A decanter centrifuges are till now the biggest sized centrifuges made by GN Solids Control, with a bowl diameter of 30 inch and a treating capacity up to 120cbm/hr.

Besides the giant bowl decanter centrifuge GNLW764A-VFD, GN Solids Control has various centrifuge models with size as small as 9 inch diameter bowl, up to 30 inch diameter bowl, including the 14 inch bowl , 18 inch bowl, 22 inch bowl and etc.

GNLW764

For each size, there are different models available per different bowl length diameter ratios. Normally the comparably longer bowl a centrifuge has, a cleaner separation result it could give. Among GNLW series decanter centrifuges, take the 18 inch bowl diameter as example, there are different ratios like 2, 3 and 4. GNLW452 is a stout shaped decanter centrifuge with middle speed and shorter bowl, which is mostly used for barite recovery in a solids control system based on the barite size and gravity. GNLW453 is a high speed centrifuge for waste management systems, or as the dewatering centrifuge, for fine particles. While the GNLW454 is quite suitable for waste water separation with a longer bowl up to 4 times of bowl diameter, around 61 inches.

GNLW764, the 30 inch bowl diameter centrifuge has a bowl length-diameter up to 4. And this giant could separate quite fine particles at a large capacity, even after a dewatering unit.

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written by shale shaker \\ tags: , ,

Oct 23

In order to meet customers’ request and to help solve the problems faced in front of customers from the more and more strict environmental protection rules, GN Solids Control designed and put into market a comprehensive design for the oily sludge separation unit, and now GN Solids Control is leading in this industry.
In recent 3 years, GN Solids Control has customized several sets of similar systems, and such systems are being used in many different countries both in domestic China and overseas. It is widely used for treating the discharged slurry and sands from crude oil tank cleaning, oily waste discharged from refineries, and the viscosity oily waste from solids control for oil and gas drilling. It helps to reduce the cost for waste transportation and oil recycle, and gained good comments from under users.

OILY SLUDGE SEPARATION

A complete system is combined by several sections:
1. Pre heating and pre mixing system. In this system, a mixing tank with heating facilities are being employed. A chemical dosing system is used for adding some polymer or something else into the oily sludge and heating is used for reducing the viscosity. Later, the sludge is to be treated by a shale shaker, by which the large particles are separated out.
2. A high speed decanter centrifuge is used in next step for treating out the fine particles from the liquid. Floating unit is kind of oil water separation, and the light of weight oil will float on surface of liquid and it would be scraped out to an oil tank. The settled down particles would be drained from bottom of the IPC unit.
3. A disc centrifuge is used to separate out the small amount of particles from the liquid, and further separate the oil from water. Then the water flows into the water tank, while oil flows into the oil tank.
In the complete system, by using the complicated manifold and valves, the end user can bypass or invite into loop some equipment based on the sludge’s condition.

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written by shale shaker \\ tags: , , ,

Aug 10

The augers are also called the screw conveyors, they are used in GN drilling cuttings waste management system as a matching equipment alongside with vertical cuttings dryers and decanter centrifuges.
In some rig sites, it is requested by the law that for each drilling rig, there must be a set of drilling cuttings waste management system, and totally in the rig site, there should be at least 2 augers: first one is below the discharge chutes of shale shakers, desander cones and desilter cones, that is used to collect the cuttings. Second one is used as a sloping angle to transfer the cuttings from the first one to the vertical cuttings dryer. In a word, the augers could be positioned sloping or horizontal for different destinations. In a word, GNSC screw conveyors could work in a group or singly, and they could be used for mixing, allocating, dewatering, discharging and etc.

gn augers

As an essential part of a waste management system, in order to well match the other equipment and easy for transportation and locating, all GN screw conveyor models are designed in same length sections, each of 12 ft. And they are of different diameters for providing different transferring capacities. There are 10 inch diameters, 12 inch diameters, 14 inch diameters and 16 inch diameters. In this condition, most of spare parts are interchangeable, which reduced the spare parts cost and enhanced the convenience for the end users. GNSC series screw conveyors are using the wear proof material for a obviously longer service life than its peers’.
GNSC series screw conveyors are not only used in the drilling cuttings waste management systems, they are also quite widely used in construction, chemical, power plants, coal mining and other industries. In some customized conditions, GN could also add the insolation layer to the augers to keep the temperature at a certain range.
For more information, welcome to contact GN directly.

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written by shale shaker \\ tags: , , , ,

Jul 25

After being developed from a solids control manufacturer and focusing on only high quality product manufacturing, GN Solids Control has become more like a separation professional and their salesroom is more and more occupied by some more widely used separation equipment which are suitable for more industries covering the oil and gas solids control, waste management, oily sludge separation, mining, TBM, HDD, food industry and also waste water separation.
Decanter centrifuge is quite an important equipment for the separation work. For example, a middle speed centrifuge could separate out particles from 5 to 8 microns like the expensive barite in the drilling mud, while a high speed decanter centrifuge could separate out the cuttings from 2 to 5 microns. With help of a chemical dosing system, the even smaller particles could be separated out together with a flocculation unit.

GN Hydraulic centrifuge

GN Hydraulic centrifuge

Comparing with other separation equipment, a centrifuge has many advantages like continuous operation, easy for maintenance and requesting less chemical components to be invited. GN has a full range of decanter centrifuges with different sizes, including 9 inch diameter bowl, with length-diameter ratio of 3 and 4 ( long or longer), 14 inch diameter bowl, 18 inch diameter bowl and 22 inch ones, they all have models of 3 or 4 as length-diameter ratios. And GN also has 30 inch diameter bowl decanter centrifuge, with a bowl length- diameter up to 4.
Among all those models, the 14 inch bowl models are most popular and economic, which are suitable for many applications. And for this model, GN has also hydraulic control model for option. Recently, one set of hydraulic decanter centrifuge will be shipped to an oversea customer, and it will be used for a big oil drilling company. Meanwhile, some more decanter centrifuges are being built for a safe stock and delivery to clients.

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Jul 12

Just not long ago, GN Solids Control who owns are quite professional R&D team in solids control industry, has developed and got patented of a series of ViST Vacuum Shakers. It would be a new page of solids control industry, because the ViST vacuum shaker will greatly reduce the drilling cutting proportion and enhance the treating performance during solids control.
Here is the working video of GN ViST Vacuum Shaker.
Here are the main parameters of GN ViST vacuum shaker:
1. Pressure of air source: 0.7-1.0 Mpa, equal to 100 to 150 psi
2. Air consumption: 4.5 cbm/min, equal to 160CFM
3. Matching shaker quantity: 2 or 3 sets
4. Suitable mud: all types of mud including SBM, OBM and WBM
5. Mud recycling ratio: 30 to 50 percentage
6. Mud temperature from minus 15 degrees to 85 degrees centigrade
7. Control type: automatic pneumatic control
8. No electrical power needed

Features and advantages of GN ViST Vacuum Shaker:
1. Wide application for all mud type including WBM, OBM and SBM.
2. It is suitable for both land rigs and offshore rigs, to enhance the working efficiency of the shake shakers, to recycle the drilling fluid to the most while discharge the cuttings to the least.
3. A ViST shaker could replace the drying shaker at a lower cost comparing with drying shaker.
4. Small footprint, even no extra space needed when added onto existing shakers, which is very important for offshore conditions.
5. Easy for installation for both GN’s own shakers and other brands’ shakers.
6. By using a ViST devise, the solids control shale shaker can use shaker screens with larger API number without leaking, in order to enhance the treating efficiency.
7. By discharging dryer cuttings, it would be easier for transport or discharge the drilling cuttings.
8. Easy to be operated by one operator only.
For more information, welcome to contact GN Solids Control directly.

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written by shale shaker \\ tags: , , ,