Jan 13

A complete separation system is not only about the equipment used for separation, but also includes the equipment used for transferring material into the separation machines. A suitable and stable transferring pump ensures the efficiency of the equipment it feeds for and even greatly affects the whole system’s running.

GN Solids Control is professional in providing separation solutions, and all necessary pumps, too.
Like for the shale shakers, if the material to be treated is from the pit or pond, GN has submersible slurry pump or vacuum pumps, for the desander or desilter, GN has full series of centrifugal pumps and etc:

1. Centrifugal pumps: centrifugal pumps are the most frequently used mud transfer pumps in a solids control system, it is used for desander and desilter feeding, jet mud mixing, and trip tank filling. GNSB series sand pumps are totally interchangeable with Mission pumps even for small parts, and the raw material used for GN centrifugal pumps are most suitable for drilling mud transferring.

2. Vacuum Pump: it is also called the sludge pump or solids transfer pump, cause it can handling a material with high solids content and large particle size. It is fully mechanical driven by compressed air, and movable. It is widely used in waste management, oily sludge separation and construction.

3. Submersible slurry pump: it is used for pumping sludge from mud pit to a desander unit or other equipment, it is also an economic solution as centrifuge feeding.

4. Screw pump: GN cooperate with international famous pump brands for centrifuge feeding. Normally, in VFD control panels for decanter centrifuge, the 3rd VFD is used for the screw pump speed adjusting, and also for fixed peed screw pumps, GN also provide customized solutions by adding mechanical adjusting device.

5. For deep drilling works and some big capacity solids control system, GN has shearing pump for cutting the material with high viscosity.

If you need more information or some pumps in your project, welcome to contact GN freely.

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

Feb 22

Among all the decanter centrifuges used for solids control and waste management systems for oil and gas drilling, they could be divided into big bowl centrifuges, medium sized decanter centrifuges and baby centrifuges. Per bowl rotating speeds, they could be divided as middle speed decanter centrifuges and high speed decanter centrifuges. Per their electric control system they are fixed speed and variable speed available.

Like GNLW363C series decanter centrifuges, GN has 4 models while 5 options available, they are highest configuration ones, for waste management use mostly, and economic standard ones. And for each configuration, end users could choose fixed speed or VFD control panel. For the economic standard option, GN has positive pressurized VFD control panel with PLC and normal VFD control panel for option.

centrifuge feeding pump

mono pump

What feeding pumps are used respectively or the decanter centrifuges per their control panels’ differences?

  1. For fixed speed control panel decanter centrifuges, you could use both the submersible slurry pump and the screw pump or called mono pump. In case of fixed speed decanter centrifuge, normally no need to change the speed and feeding capacity which is already set with a formula of centrifuge feeding speed and gearbox ratio and motor rotating speed, and etc. In order to change the feeding capacity when using the submersible slurry pump, extra liquid fed to the centrifuge could flow back via the overflow pipeline of the centrifuge. In case of the screw pump, the end user could install a mechanical devise on the screw pump as a manual valve. Such is shaped as a wheel and could be switched left or right in order to get a suitable feeding capacity.
  2. For the VFD controlled decanter centrifuges, the common and practical solution is always the mono pump or screw pump. The screw pump’s motor is connected with the control panel and on the other side of the motor is the gearbox connected with the pump rotating part. By changing the HZ via control panel, the directly connected screw pump would change the feeding speed and accordingly the feeding capacity.
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written by shale shaker \\ tags: , , , , , , ,