Tag: 3 phase disc separator

GNOST-02B Oil Sludge Treatment Package Equipment for Fujian Client

Recently one unit of GNOST-02B Oil Sludge Treatment Package Equipment are shipped to Fujian Client, the treating capacity for oil sludge is 2m3/h.
The configuration of GNOST-02B Oil Sludge Treatment unit is as below:
Main equipments including GNZS752J shale shaker, GNLW224FT decanter centrifuge, GNSD-40 3 phase disc separator, chemical dosing unit, heating pre-mixing tank, feeding pump, etc. Mud tank skid with guardrail, walkway, stairs and frame, electric control system.


This is a compact structure oil sludge treatment unit which can be used for testing, especially for the client who wants to invest high capacity oil sludge treatment system but not sure about the treating capacity, they can use the testing unit firstly before made a decision, due to the compact design, it will influence the continuous working of the unit, we need to make changes in the design if continuous working is required.
The functions of each components:

  1. Premixing tank and mixing tank with heatling lines, including stainless steel material tank, electric heating system, mud agitator, to collect fluids from shale shaker and feed to decanter centrifuge , or collect fluids from decanter centrifuge and feed to 3 phase disc centrifuge.
  2. Shale shaker, to separate the coarse solids and reduce solids content, so the fluids meets the technical requirement to feed to the decanter centrifuge.
  3. Decanter centrifuge, to separate fine solids from the fluids , the treated fluids meet the technical requirement before feeding to 3 phase disc separator
  4. 3 phase Disc centrifuge, to separate the little solids, oil and water, to get the clean oil recovery and clean water recovery, the water can be reused for circulation or sent to waste water treatment plant.
  5. Chemical dosing system, according to user’s chemical engineer’s testing, they need to add proper type chemical additives to each process to achieve expected result.

GNOST-15B Oil Sludge Treatment Equipment for Middle East Company

Recently one set of GNOST-15B oil sludge treatment equipments are ready for shipment for Middle East company, it consists of modules as below:
1. Transfer module: it suck the oil sludge and transfer to primary coarse shaker separation module to separate big solids.
2. Coarse shaker separation module: Classification Vibrating Screen GNLMP1236
3. Crusher module: to break the big solids into smaller piece, for easier separation of solids and transfer to pre-mixing tank.


4. Pre-mixing tank module: 2 units, the dimension is equivalent with 20ft container, the pre-mixing tank equipped with heating lines, mud agitator, submersible slurry pump, the user can use demulsifier or oil sludge surfactant according to the oil sludge conditions.
5. Fine solids screening module: oil sludge separation shale shaker GNZS706, which is a double deck shale shaker, the top layer screen is to separate the bigger solids, and the bottom layer screen is to separate the fine solids.


6. Solids liquid separation module: GNLW553D-VFD decanter centrifuge, adding with flocculants, the treating capacity of oil sludge is up to 20m3/h, to separate fine solids from the oil water mixture. The bowl diameter is 22 inch, the bowl length is 71 inch, the max speed is 3000rpm and max G force is 2719G. When use it to treat drilling fluids, max treating capacity is up to 500gpm.


7. Oil water separation module: GNSD-125 3 phase disc separator, to separate the oil, water and few solids, if necessary, proper demulsifier can be added for easy separation of oil and water, the oil can be recovery and water can be sent to waste water treatment facility or reused in the circulation system.
8. Chemical dosing unit: to prepare for oil sludge demulsifier, Oil sludge surfactant, flocculants.
It is customized oil sludge treatment system according to client’s requirement, if you need a oil sludge treatment solution, pls contact with GN solids.

Oil Contaminated Soil Washing and Separation Equipment for Middle East Customer

Recently one set of Oil Contaminated Soil Washing and Separation Equipments are ready for shipment to Middle East customer. It is a customized system for Oil Contaminated Soil Washing and Separation, including the modular as below: for more details, pls check with GN solids sales.

  1. Mobile washing module
  2. Solids vacuum pump feeding module: including solids vacuum pump, air compressor module to supply air for the vacuum pump and decanter centrifuge VFD control panel, material suction pipe and discharge pipe, air supply pipe.
  3. Pre-mixing tank 1: including electrical steam generator with water softening equipment, pre-mixing tank with liquid level meter, lightings, electric control system, heating pipeline and tank accessories, mud agitator for chemical mixing and agitating, submersible slurry pump to feed to screening shaker.
  4. Pre-mixing tank 2: including electrical steam generator with water softening equipment, pre-mixing tank with liquid level meter, lightings, electric control system, heating pipeline and tank accessories, mud agitator for chemical mixing and agitating, submersible slurry pump to feed to screening shaker. One pre-mixing tank in use and one pre-mixing tank as back up. Since the electric steam generator can not provide enough steam for heating the oil sludge immediately, the 2 sets of pre-mixing tank design can improve the working efficiency of the Oil Contaminated Soil Washing and Separation system and it can work continuously. Heating process is important to reach the expected treatment result.
  5. Screening module: including shale shaker, pre-mixing tank, mud agitator, decanter centrifuge feeding pump and static mixer.
  6. Chemical dosing module for chemical preparation and mixing
  7. Centrifuge separation modular: including VFD decanter centrifuge, 3 phase disc separator with its feeding pump, flushing unit, solids discharge transfer unit, centrifuge fluids collection tank with mud agitator, buffer oil tank and water tank, and electric control system, lightings, tank accessories.

5m3/h oil sludge treatment system

As one of the solids control equipments and drilling waste management system manufacturer in China, GN solids control also produce oil sludge treatment system with treating capacity 1 ~2 m3/h, 5m3/h, 15m3/h for option.


GNOST-05A oil sludge treatment system with 5m3/h treating capacity, the main equipments including double deck shale shaker, VFD decanter centrifuge, 3 phase separator, vacuum pump, if the budget is limited and required treatment result is not main concern, we can use 3 phase decanter centrifuge instead of VFD decanter centrifuge and 3 phase separator. The 3 phase disc separator is suitable for three phase liquid liquid solids separation, such as oil water and solids separation, but the pre-condition to feed into the 3 phase disc separator is that solids content should be lower than 3%.


If the oil sludge with higher solids content and coarse solids size, the user should use drying shaker separation modular to separate big solids and reduce solids content, then feed to 2 phase separation decanter centrifuge to separate fine solids from liquid, so that most of the solids will be separated out, and the oil water mixture fluids can be feed to 3 phase disc separator. If the original oil sludge to be treated is with high viscosity and very low fluidity, to improve the oil separation efficiency of the solids, proper chemicals can be jetted into the oil sludge in the pre-mixing tank and mixed by mud agitator continuously, the prepared mixed oil sludge will be transferred by submersible slurry pump and feed to drying shaker to separate big size solids. The oil sludge is transferred by sludge vacuum pump from waste pit to pre-mixing tank. The containerized chemical dosing system can add proper chemicals into the fluids for easier separation of ultra fine solids by decanter centrifuge from oil sludge.