Month: August 2018

One unit of Hydrovac excavation waste slurry treatment system is shipped to Canada, the function of this treatment system is to recover the water and remedy the soil, the environmental protection regulation is very strict in North America, we already have 2 units of such hydrovac excavation waste slurry treatment working in the State.

The slurry treatment system is consist of equipments below:
1) Waste collecting hopper:
The waste collecting hopper collect the waste slurry discharged from hydrovac truck.
2) Course solids washing tank
The coarse screen under waste collection hopper will separate the big size trash and other mass firstly before feeding to the high G drying shaker.

The high G drying shaker with GN brand composite material frame shaker screens will separate most big size solids and reduce the solids content before feeding to the desilter cone.
3) Fine solids washing unit
Fine solids is separated by desilter cones and the solids is drying by the bottom drying shaker so the discharged soil will be drier for disposal and more fluids will be collected.
4) Dewatering centrifuge unit

The dewatering centrifuge is 22 inch big bowl big volume centrifuge with feeding pump and telescopic skid. The result will be better by using chemical dosing system. The ultra fine solids below 2 microns will be separated by decanter centrifuge with dewatering unit.

Continue reading “Hydrovac excavation waste slurry treatment system in Canada”

This week 2 units of big bowl big capacity decanter centrifuges with VFD control panel are shipped to Australia for mining sludge separation applications. Features of GN decanter centrifuge:
1)    Full stainless steel cover with PLC smart control, vibration sensor, temperature sensor to adjust the frequency of the centrifuge to meet the different requirement of the clients. The main motor, back drive motor and pump motor converter is made of ABB brand, all the other electrical components are from Siemens, Schnerder, ABB and other famous brand.

2)    The centrifuge bowl is made of duplex stainless steel 2304, the screw is made of stainless steel by 1000 degree heating, the solids discharge port and fluids distribution port is protected by tungsten alloy, the impeller opening deign will enlarge the treating capacity and the treatment performance.

3)    The bearing lubrication system feed the lubrication oil by the oil pump, it is cooling by the plate type heating exchanging system can effectively cool down the lubrication oil so that to get a better cooling performance.
4)    The client can install the decanter centrifuge with VFD control panel, feeding pump, on the telescopic skid, during transportation, the user will low down the telescopic skid to fit for transportation height limit.
5)    The specification of the big bowl big capacity centrifuge: The designed treating capacity is 120m3/h, the max G force is 3000G, the normal speed is 0 ~2200 rpm, max speed is 2650rpm, the bowl size is 760mm, the bowl length is 3328mm, the main motor power is 160KW, the back drive motor is 90KW. The electrical motor and VFD control panel are all comply with Australia standard.
6)    The centrifuge is widely used for dewatering unit, solids control system, waste water treatment,etc industry.
If you need a big bowl big capacity decanter centrifuge, pls contact with GN solids control.

This week GN solids control shipped 2 units of Large Bowl 30 inch GNLW764A Decanter Centrifuge for Mining Industry to Australia, this is the largest centrifuge model we have made right now, we have 9 inch, 14 inch, 18 inch, 22 inch and 30 inch bowl decanter centrifuge with different treating capacity, different speed, different G force for various applications.

The diameter of the centrifuge bowl is 760mm, the bowl length is 3328mm, the treating capacity is 528gpm, max bowl speed is 2650rpm, typical bowl speed is 2200rpm, max G force up to 3000G, typical G force is 2060G. The main power is 160KW, back drive motor is 90KW, the gearbox Torch is 25000.N.M.

Same with the smaller decanter centrifuge, the screw propeller protection is tungsten carbide tiles, the bowl fluids distribution port and solids discharge port is protected tungsten alloy for longer working life, the bowl material is made of duplex stainless steel 2304 for anti corrosion.
The bearing for this big bowl centrifuge is very big, need separate lubrication system for better lubrication to extend the working life of the bearings. The plate type heating exchanging system can effectively cool down the lubrication oil so that to get a better cooling performance and the temperature sensor installed on the bearing seat will send signal to the PLC to trip off the centrifuge in case of over high temperature.
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We shipped several units of screw conveyor to Africa for drilling cuttings transferring, this is not the first order from this client, they repeat order every year including shale shaker, desander, desilter, centrifugal pump, screw conveyor, etc.

We always provide the best quality, best service and best after sales support to our clients, that is the reason we got repeat orders every year from our old clients.
The screw conveyor is one method to transfer the drilling cuttings to drilling waste management system, when the drilling cuttings are from solids control equipments, screw conveyor is workable. If the fluids content is bigger and the drilling cuttings are not treated by solids control equipments, the pump is workable to transfer the waste. The auger length and diameter is customized according to the required transfer capacity and the distance between the waste and the drilling waste management system.

Except for screw conveyor, we also shipped shale shaker and poor boy degasser to Africa. The 4 units of poor boy degasser ( also known as mud gas separator), which is used before shale shaker as well control equipments, to separate the hazardous gas from the drilling mud to prevent it from kick off. According to the drilling depth, we can use different size mud gas separator, the standard size is 1000mm diameter, we also have 600mm, 800mm, 1200mm diameter for option.

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This week we shipped one set of oil sludge separation system to Europe client, this unit has been demonstrated in CIPPE 2018 oil exhibition in Beijing, and got interests from many clients who is in oil sludge separation projects. After the exhibition, the oil sludge separation system was shipped to a client’s jobsite for oil sludge separation testing, they are satisfied with the result. After testing, the unit is shipped back to GN facility for cleaning and maintenance, and purchased by Europe client. They also ordered a 15 m3/h oil sludge treatment unit which is under construction.

As a professional oil sludge separation system manufacturer in China, we have provided many sets of oil sludge separation system to our international clients, to use it for refinery oil tank bottom cleaning oil sludge treatment, hazardous oil contaminated waste treatment, drilling cuttings waste treatment, etc. projects.
The 1 m3/h oil sludge treatment system is designed for convenient shipment, convenient operation, it has features as below:

1)    Compact design, simple process
2)    Completely electric drive, including heating, the bigger treating capacity oil sludge treatment system will be operated by boiler for heating, and air compressor for operation of vacuum pump and VFD control panel
3)    Complete function of solids liquid separation, oil water separation, chemical dosing system, heating and pre-mixing system and pure water collection, pure oil storage.
Continue reading “Oil sludge separation system sold to Europe”