Month: January 2020

One set of GN dewatering centrifuge with chemical dosing system is used for TBM project for Southeast Asia clients. The purpose to use dewatering centrifuge system is to reduce the ultra fine solids of the mud, to get drier solids and clear water, the water can be re-used or sent to final water treatment system for disposal. It will save water consumption for the client so that the cost is saved, and meet the environmental regulation in the user’s country.

The configuration is as below:
1 set of high speed decanter centrifuge with 1 set of 20ft container, as one of the most professional decanter centrifuge manufacturer in China, GN solids control can produce different size bowl decanter centrifuge with different treating capacity, from 9 inch to 30 inch, the bowl length/diameter ratio has option with 3 and 4 for different applications. Based on special projects, we will design customized centrifuge to meet client’s requirement.
our centrifuges have been widely used for oil & gas drilling solids control system and drilling waste management system, mining tailings treatment, industrial waste water treatment, dredging slurry treatment, TBM & Tunneling mud recovery dewatering unit, oil sludge treatment system and all the other kinds of solids/ liquid separation projects.

The high speed decanter centrifuge mechanical separation cut point is 2~5 microns, when adding chemicals ( flocculants agent), the ultra fine solids ( below 1 microns) in the mud can be separated out and the centrifuge separation performance will be increased, so that the user can get more clear water and dries discharged solids from the decanter centrifuge.

One set of chemical dosing system installed into a 20 ft container, with 3 stainless steel material compartment with hopper, agitator, chemical dosing pump, pipeline system and brackets, all of them are controlled by PLC control panel.

We shipped a repeat order to Russia client this week for several units of shale shakers, Russia market is one of our best market among over 70 countries in the world, the best seller is shale shaker, mud cleaner, shaker screens, decanter centrifuge, vertical cuttings dryer. Most of the shale shakers are used for oil & gas drilling industry.
Shale shaker technical specification:

1) GN solids control has different models with different treating capacity for option, we have 2 panel shale shaker, 3 panel shale shaker, 4 panel shale shaker and double deck shale shaker, all of the shale shaker installed with composite material frame shaker screens, the total screen effective area with different treating capacity.
2) Normally we produce linear motion shale shaker, if required by client, we will make dual motion shale shaker, which with linear motion and progressive elliptical motion shale shaker.

3) The shaker deck is made of carbon steel material, and the deck bottom is made of stainless steel 304 material for better strength, better abrasion resistance, this component is fluids touch part. For special requirement, we can also make the whole shaker deck with vibration beam with stainless steel material, the mounting skid is made by high grade structure steel.
When install the desander, desilter frame on top of the shale shaker, the 3 in 1 combination unit will be called as mud cleaner. With different qty desander cone and desilter cone, the treating capacity is different. We have 500gpm, 1000gpm, 1500gpm treating capacity for option.
4) The shale shaker and mud cleaner adopted with same dimension shaker screens, which are also interhchangeable with world’s famous brand shale shaker. Except for OEM screens, we also produce replacement shaker screens for other brand shale shaker.
If you are interested in shale shakers and mud cleaner, pls contact with GN solids control.

Recently GN shipped one set of water based drilling cuttings disposal system to Africa, firstly the client use water based drilling cuttings treatment system to treat the drilling waste firstly, to reduce the moisture of the discharged cuttings as much as possible, so the user can use less lime and absorber material and save the cost to reach better solidification result. The working principal of the cuttings solidification unit is to use lime and absorber to mix the drilling cuttings and prevent the waste from leakage to the environment, and safe for landfill and other construction works.
The solidification unit configuration is as below:

Installed one 2 separate skid for flexible operation, one skid is drilling cuttings collection hopper to receive the water based drilling cuttings and transferred by screw conveyor to solidification mixing skid; the other skid is solidification mixing unit including lime storage box, absorber storage box, with 2 auger to transfer the material to high shear mixer, the materials are mixed by high shear mixer and transfer to the solids discharged port, the hazardous waste are locked into the discharged solids, so that it can be safe to the environment.

High G drying shaker is a 4 panel screen shale shaker, the shaker screens installed is composite material frame shaker screens, 2 nos of 1.94KW vibration motor provide high G force up to 8.0G, the hopper type buffer box to receive the drilling cuttings from the auger discharge port.
VFD decanter centrifuge to separate the fine solids from the drilling waste, if necessary, flocculants should be added to increase the separation performance, the fluids will be more clear, and the discharged solids is much drier. The max speed is up to 3900rpm, max G force is 3063G, the typical speed is 3200rpm, the typical G force is 2062G.