Alfa Laval Industrial Centrifuge

Alfa Laval Centrifuge Systems

Dolphin Centrifuge is an industrial centrifuge manufacturer. For over 35 years, we have specialized in Alfa Laval centrifuges. We manufacture complete ‘turn-key’ systems engineered for all industrial and commercial centrifuge applications. Learn more about us here.

Machining Coolant Centrifuge

Alfa Laval centrifuges separate tramp oil and fine sediment from water-based machining coolants. These are flow-through disc stack centrifuges for continuous separation of industrial coolants.
 
A 3-phase centrifuge is custom configured as a machining coolant centrifuge. They extend the usable life of water-soluble & synthetic coolants.
 
The liquid-liquid separation feature separates the tramp oil from coolant. The liquid-solid separation effect removes the fine metal particles as disposable sludge.
 
The image above shows an Alfa Laval metalworking coolant centrifuge skid. It is the durable solution for large volume, continuous separation of machine coolant.

Cutting Oil Centrifuge

Alfa Laval disc stack centrifuges separate fine metal particles from cutting oil. These centrifuges generate very high centrifugal force. This ‘g-force’ allows them to clean the oil to a high degree.
 
When setup in a ‘kidney-loop’, the centrifuge keeps the contaminant at a low level in the cutting oil reservoir.
 
Dolphin Centrifuge has supplied small and large scale centrifuges to manufacturers.
 
Image shows a 20 GPM Alfa Laval disc stack centrifugal separator. This module was for recycling Mobilmet 766 cutting lubricant at an auto supplier.

Wire Drawing Oil Centrifuge

Wire drawing is a metal working process to reduce the cross section of wire. Manufacturers pull the wire through a series of dies with reduced hole sizes. Lubricating oil reduced the process friction.
 
Fine metal, rust and scaling particles contaminate the lubricant in the drawing process. Filters are not practical in such applications due to the small size of particles.
 
An Alfa Laval centrifuge (with a ‘self-cleaning’ bowl) purifies the lubricant oil. It cleans the oil by removing metal particles down to 0.5µ size.
 
Centrifuge skid shown here is a ‘turn-key’ module manufactured by Dolphin Centrifuge. It uses an Alfa Laval centrifuge to purify draw oil for an aluminum wire manufacturer.

Quenching Oil Centrifuge

Quenching oil has inherent heat-treating properties. Hardening ability, heat resistance, thermal stability etc., to name a few.
 
Contamination of quenching oil causes these properties to degrade over time. This leads to product quality issues and replenishing of costly quenching oil.
 
Alfa Laval self-cleaning, clarifier centrifuges separate the solid contaminants from quenching oil. R&O and coarse resin particles are easily removed allowing reuse of the quenching oil. This recycling process extends the usable life of heat treating oils.
 
Dolphin Centrifuge designed and manufactured the Alfa Laval centrifuge module shown. A heat treatment supplier in the mid-west is using this system at present to reclaim their quench oil.

Industrial Wash-Water Centrifuge

Stamped and machined parts are water washed to remove manufacturing debris and oils. Oils and metal solids saturate industrial wash water making it unusable.
 
An Alfa Laval, 3-phase, disc stack centrifuge is the solution! It removes the metal debris and oils in a one step process. Reclaimed wash-water is reusable instead of sending for disposal.
 
A wash-water centrifuge is an Alfa Laval centrifuge configured as a concentrator. It concentrates small quantities of residual oil from the water. It’s self-cleaning design allows it to separate particles down to 0.5 µm level.
 
Module displayed above shows an Alfa Laval WSPX 303 centrifuge. It processes 5 GPM of washer fluid in a closed loop washing system at an auto-supplier.

Waste Vegetable Oil Centrifuge

Heating, decanting and filtration WVO is a costly and labor intensive process. Especially for large scale processing of WVO and similar used oils.
 
Industrial centrifuges are ideal for continuous separation of water and sludge from WVO. WVO could be in the form of grease trap waste, yellow grease, used cooking oil etc..
 
Alfa Laval disc stack centrifuges are often used for separating solids and water from WVO. These fully-automatic machines can be setup for flow-through separation of water and sludge from WVO.
 
The Alfa Laval ‘self-cleaning’, 3-phase centrifuge system shown above process WVO at 3~5 GPM on WVO at 180F.
 
Read our latest blog post about WVO processing with an industrial centrifuge.

Waste Oil Centrifuge

Waste oils (used motor oil, hydraulic oil, lube oil etc.) are reusable. Often reused as stock for black diesel, regenerated engine oil etc..
They are also used as fuel as in fuel oil and other heating applications.
 
Waste oil has water and sludge as primary contaminants. Separation of these contaminants is essential before reuse of waste oil.
 
Heating and settling are not economical for large scale processing of waste oil. A continuous mechanical separator is well suited for this application.
 
An Alfa Laval disc stack centrifuge separates all particles (sludge) down to 0.5 µm and all free water. This is a concurrent process separating all 3 phases i.e. oil, water and sludge.
 
Dolphin Centrifuge designed and manufactured the displayed industrial centrifuge package. This system purifies used engine oil from water and sludge at 60 GPM.
 

Waste Water Centrifuge

Industrial and municipal wastewater is mostly contaminated with sludge. Oil or hydrocarbon is present as a third phase in some cases. Sludge thickening is concentration of sludge from large volumes of wastewater.
 
This is not an application for filters or other static media separation technology.
 
A decanter centrifuge is a heavy duty mechanical separator using high centrifugal force. It is efficient for sludge thickening at an industrial scale. As an extra advantage, it does not need labor involvement. It is the separation device of choice for all municipal and industrial wastewater treatment.
 
Dolphin Centrifuge is an experienced manufacturer of wastewater centrifuge systems. We manufactured this complete de-watering systems shown here. It is a Sharples P3000 decanter with clean water tank, feed pump and other accessories. With a 4000 RPM bowl speed, this decanter can process 40 GPM of wastewater with 40% sludge.

Hemp Biomass Solvent Separation Centrifuge

Solvents are the medium of choice to extract CBD Oil from hemp. Ethanol and hydrocarbon solvents extract the oil the hemp plant matter.
 
Separating biomass from hemp solvent mix is a challenge for CBD oil production. Effective biomass separation is essential for downstream cannabinoid recovery.
 
Filters, filter presses and screw-presses are labor intensive. These are only suitable for small volume batch processing.
 
A decanter centrifuge is efficient for continuous separation of solvent from hemp biomass. Specially in cases of large volume, continuous production applications.
 
Dolphin Centrifuge has been working with large scale CBD Oil manufacturers. Our efforts is towards maximizing solvent extraction efficiency using centrifuges.
 
Alfa Laval decanter centrifuges have demonstrated efficiency for hemp biomass solvent separation. Decanter centrifuges for this application need to be food grade and explosion proof.
 
Photograph above shows an Alfa Laval NX 414 hemp solvent separation decanter. This decanter can process 20 GPM for bulk hemp biomass solvent separation in the mid-west. 20 GPM translates to 3000 Lbs/Hour of dry hemp stock at 50% solvent mix ratio.
 
Click here for details on using an industrial centrifuge as a Hemp Solvent Biomass Separator.

Solvent De-Waxing Centrifuge

 
Solvent discharge from hemp biomass separation step contains suspended organic matter. These include waxes, lips and other small plant matter. Removal of these suspended organics is essential before distillation to CBD Oil.
 
These organics are traditionally separated by filtration. But sticky waxes and lipids plug up filters.
 
Alfa Laval disc stack centrifuges replace filters to separate waxes and lipids. These are mechanical separation machines without any replaceable media. These are continuous separators with a flow-through design.
 
System displayed here is an Alfa Laval is an Alfa Laval BRPX 213
Food-grade, disc stack centrifuge. It has all stainless steel fluid contact with a processing capacity of 60 GPM on Ethanol clarification.

Diesel Fuel Centrifuge

Diesel is the most common fuel used. From transportation to power generation, diesel is the fuel of choice.
 
Stored diesel is often contaminated by condensed moisture, tank seepage water. Additionally microbes, rust sediment and other forms of sludge contaminate diesel.
 
A diesel centrifuge separates all free water and sludge from the diesel fuel. Unlike filters, a centrifuge does not use replaceable filters or media.
 
A ‘self-cleaning’ stack disc centrifuge Alfa Laval centrifuge is often the remedy. Installed in a re-circulation loop on the storage tank, a centrifuge ensures clean diesel.
 
Dolphin manufactured the duplex centrifuge skid shown here. This explosion proof centrifuge skid maintains clean diesel on an offshore gas platform.
 

Fuel Oil Centrifuge

Fuel oil is a cheap fuel used to run large engines at cogeneration power plants and in ships. Engine manufacturers stipulate high purity level HFO. This ensures efficient and reliable operation of the plant.
 
Fuel oil procured from non-reliable sources often has high levels of water and solids. Also, stored fuel oil accumulates water and rust contaminants.
 
Alfa Laval centrifugal separators purify the fuel oil to remove sludge and water. HFO is then ready to feed the engine for reliable performance.
 
A power utility in Latin America wanted to convert their diesel engines to operate on Heavy Fuel Oil. Dolphin supplied a ‘plug-n-play’ fuel oil purification module shown here.
 
The system included an Alfa Laval disc stack centrifuge with accessories. Accessories included in-line electric heaters and high pressure pumps to ease the use of HFO instead of diesel. Reducing the viscosity & increasing the supply pressure to the engine allows this substitution.
 
The operating cost savings by switching fuels justified the cost of the centrifuge system.

Lube Oil Centrifuge

Lubricating oil is the lifeline of a power plant engine or turbine. Condensation and bearing wear particles are the primary impurities in all lube oils.
 
Contaminated lube oil leads to premature equipment failure. This in turn leads to unanticipated downtime and maintenance.
 
Lube oil centrifuge modules maintain moisture and particle contamination to a acceptable level. This reduces downtime and improves equipment reliability.
 
Image shown is that of a compact lube oil centrifuge system from Dolphin Centrifuge. This module has a small foot-print and supplied with castors to offer mobility. This explosion proof centrifuge cart is suitable for hazardous areas.

Hydraulic Oil Centrifuge

Hydraulic oil is the power transmission fluid in industrial fluid powered machinery.
 
Hydraulic oil tends to accumulate particle contamination over time. This leads to premature wear and failure of critical machinery using hydraulic oil.
 
The easiest way to extend machinery life is to remove small particles from the oil on a continuous basis.
 
An industrial disc stack centrifuge is ideal for removal of fine particulates from hydraulic oil. The disc stack centrifuge generates highest centrifugal forces (among conventional centrifuges).
 
It removes all particles (down to 0.5µ) and free water (if any). Water removal is an added benefit of Alfa Laval 3 phase centrifuges.
 
System shown above features an Alfa Laval 5 GPM, self cleaning disc stack centrifuge. This centrifuge bowl rotates at 8000 RPM.

Algae Harvesting Centrifuge

Algae is the new biofuel of interest.
 
Algae cell harvesting requires processing large volume of water. This concentrates small amounts of algae cells.
 
Algae cells are very small and their specific gravity is close to the medium (water). This is a challenging application for any separation process. Especially those using media i.e. filters, presses etc.
 
Alfa Laval centrifuges are efficient at large scale harvesting and algae separation. Disc stack centrifuges generate upwards of 9,000 g’s of centrifugal force in the bowl. This centrifugal force is enough to separate the algae cells from water.
 
Large capacity centrifugal separators harvest algae on a commercial scale. These systems are capable of processing algae bearing water at up to 150 GPM.
 
The before and after image shown here is at an algae farm in Thailand. Dolphin supplied Alfa Laval disc stack centrifuges for algae harvesting at a fisheries plant. The concentrated algae cells are nutritious fish feed.

Biodiesel Centrifuge

Chemical reaction of vegetable oil with lye or other caustic agent and alcohol produces biodiesel. This is also known as esterification. The reaction creates biodiesel and glycerol (glycerin mixed with alcohol).
 
The heavy phase (glycerol) separates from the lighter biodiesel under gravity. Draining this heavy phase produces crude biodiesel.
 
This is a time consuming process which also requires extra storage capacity. Also it does not produce pure biodiesel.
 
Alfa Laval centrifuges are a fast and cost effective way to separate glycerin from Biodiesel.
 
Dolphin modified Alfa Laval centrifuge specially for Biodiesel separation. These centrifuges produces ASTM spec Biodiesel without the need for further processing.
 
System shown above is a Teflon coated biodiesel centrifuge system. Dolphin manufactured this centrifuge for a domestic biodiesel producer.
Oilfield Centrifuge Virtual Tour
Click on the image to 3D walk-through

Crude Oil Tank Bottom Centrifuge

Crude oil extracted from the ground carries saltwater and sand or other sludge. Producers use settling tanks to separate crude oil from Bottom Sediment & Water also known as BS&W.
 
‘Tank bottoms’ are the residue left in the settling tanks after the removal of sale oil. Considerable oil is often left with the tank bottoms. Recovery of his oil can is extra revenue for the producer.
 
An Alfa Laval industrial centrifuge is a cost-effective solution for tank bottom processing to recover oil. It uses centrifugal force to separate the tank bottom sludge from the oil.
 
Alfa Laval 3 phase centrifuge also separates water from the oil. This process delivers clean crude oil with less than 0.5% BSW.
 
Dolphin Centrifuge has designed an engineered solution for efficient, low-cost crude oil recovery. Our containerized Oil Recovery System (click above) is a ‘self-contained’ packaged module. It is for remote field applications to process tank bottoms and recover sale oil with less than 0.1% BS&W.
 
Crude oil centrifuges are also used at Salt Water Disposals for produced water separation.

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