Month: December 2023

When you open this page, you might be attracted by the large linear vibrating screen in this picture. This picture was taken during the factory test in GN workshop before delivery, and after the strict QC inspection, it was taken to the client’s mining plant for the iron ore separation. Here is the links of load-operation at jobsite.

About GN Separation: GN Separation is the sister company of GN Solids Control, one of the leading brands for industry separation solution providers and equipment manufacturers who is mostly focusing on the separation solutions in oil and gas industry, like the drilling solids control systems, the drilling waste management solutions and the oily sludge treatment in a refinery plant. GN Separation is another brand in GN Group, who is also a professional solution provider for separation in environment protection industry, water treatment solutions and also the mining industry.

Mining vibrating screens are one of the core products GN Separation designs and manufactures, and the large linear vibrating screen is one of the 3 types:

1.Large vibrating screens. GN Large vibrating screens are designed for various applications including coal mines, mineral mines, metal mines and also sand and aggregates. In fact, it is mainly based on the requested capacity to see if the client should choose a large vibrating screen. GN has three types of large vibrating screens, large linear motion vibrating screen, large banana vibrating screen and large flip-flow vibrating screens.

2.Middle sized linear motion vibrating screens for classification and dewatering. The structure of the middle sized screens are quite similar as the large linear motion vibrating screens, just smaller in size. And based on the 2 main different applications, GN designed them with a bit differences for a better performance for classification and dewatering.

3.High frequency fine sizers. This type of screens are comparably smaller in size, but they have higher frequencies for fine separation. Besides, they are also equipped with flexible screen meshes instead of screen panels.

Welcome to contact GN directly for more information.

In the fields of physical separating, the decanter centrifuges always play an important role. They are widely used in different industries, such as drilling of crude oil and gas, the waste water treatment, mining tailing, food and beverage industry, edible oil clarifying and animal waste treatment and etc. And chemical plant is another industry using decanter centrifuges. It is really not easy to cite out all the industries which are in need of decanter centrifuges. It is true that centrifuges are so useful and therefore, popular.

As one of the leading separation solution providers, decanter centrifuge is one of GN Separation’s core products, among the shale shaker, desander cyclones, desilter cyclones, vertical cuttings dryer, three phase decanter centrifuges, and various pumps. In a word, GN Separation is designer and manufacturer for the separating and conveying equipment, and decanter centrifuge is one of them which can better show a manufacturer’s fabricating capability.

GN Separation Equipment Co. Ltd is located in Hebei Province, China, which is of 2 hours drive from Beijing Airport. It has a large factory workshop of 80,000 square meters, equipped with robot cutting and welding machines, and the for the decanter centrifuges, there are high speed balancing machine and middle speed balancing machines. Each rotating part shall of the centrifuge, like the propeller and bowl, shall be balanced on the balancing machines separately and assembled to ensure the performance.

In a recent project, an oversea client purchased a decanter centrifuge unit including following:

1.A decanter centrifuge GNLW364-VFD together with a VFD control panel. GNLW364 is a two phase decanter centrifuge with a centrifuge bowl of 14 inch diameter and a bowl length 4 times of the diameter. Comparably, it is a longer centrifuge with a clearer separation result. It is an ideal choice for the chemical industry. And its cutting point is from 2 to 5 microns.

2.A polymer dosing unit GNSJY3000, and a screw pump in a set for dosing. The polymer is employed to a centrifuge system when the particle sizes are too small for the decanter centrifuge. Because the polymer need some time to be ready, an automatic dosing is a must here.

Drilling waste management system can be divided into 2 kinds when there is a drilling rig for oil and gas. It depends on the procedure of the rig’s solids control system and also the components used during drilling. When there is a drilling rig, there must be some drilling fluids cycling in a system, which is called a solids control system. Just as its name, this system is used to control the solids content in the drilling fluids and to remove the waste particles as many as possible in order to make sure the drilling fluids to reach the standard for reuse. Those waste solids are sands and small stoned brought by the drilling bit from the underground, which are of different sizes. In order to remove them, the solids control system is designed into several stages based on a certain particle size range: shale shaker, desander, desilter and decanter centrifuge.

The shale shaker is the first stage, which is a physical separating with simple principle: vibrating. Normally, the shale shaker can remove particles larger than 100 microns. And the actual separating point is determined by the shaker screens’ API number, which is chosen by the end user. Of course, there is a curve between capacity and cutting point, the finer the separating result is, the smaller capacity it reaches. And it is the shale shaker which remove the most solids particles. But there is a problem, that the particles removed by the shale shakers are still too wet, containing a certain amount of expensive drilling fluids. That’s why it is necessary to have some further treatment of the drilling cuttings from the shale shaker.
Besides the complete solids control system, GN Solids Control also provides professional solutions for drilling cuttings waste management. Just recently, an European client purchased such a system including following:

1.Cuttings feeding section: this section is used to collect the wet cuttings from the shale shaker and feed to the first stage of separating in a waste management system.

2.High G drying shaker section: it is especially designed for the water based mud, it looks similar as a normal shale shaker but with a higher G force.

3.Vertical cuttings dryer section: a vertical cuttings dryer serves same function as a high G drying shaker for the drilling cuttings under condition when oil based mud is used in the drilling system.

4.Screw Conveyor section: this section is used flexibly for transportation purpose between the treating equipment.

In this case, even when the drilling site uses both WBM and OBM, the waste management sections can be used flexibly.