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Oil Skimmers Help Steel Mills Save Money | Abanaki

Posted by Tom Hobson on Mar 28, 2019 9:15:00 AM

There is likely no larger industrial meeting place for oil and water than a steel mill. Because of the massive amount of water that is needed for process cooling and descaling, and the similar quantity of hydraulic, lubricating, and cooling oils that are required in steel production, the adage that oil and water do not mix is put to the test and proven every day.

Oil contamination in steel mills process water

It can take between 10,000-75,000 gallons of water to produce one ton of steel, depending on the amount of recycled water that is used. Reusing water whenever possible is crucial to maintaining costs, and to be able to reuse water in the majority of steel mill processes it needs to be free of contamination, namely oil.

Tramp oils commonly contaminate steel mill process water and this can lead to a variety of problems. Water purity is obviously affected which means that the effectiveness of this water in its role as a coolant or lubricant is reduced. Additionally, water that is contaminated with oil cannot be discharged into a facility’s wastewater system, as this can potentially cause a hazard to the environment. Finally, the presence of some oils in water can provide an ideal media for bacteria growth that can present unsafe working conditions for workers. All of these factors contribute to a mill not being able to recycle water, which means increased production costs.

Abanaki Model 8 Oil Skimmer

What counter measures can be employed at a steel mill to limit or eliminate process water from becoming contaminated with oil? For one, the Abanaki Model 8 Belt Oil Skimmer is a dependable and effective means of removing oil from water and water-base solutions, such as those found in mills. Oil skimming makes use of the differences in specific gravity and surface tension between oil and water. These physical characteristics allow the belt skimmer to attract oil and other hydrocarbon liquids from the surface of the fluid.

Depending on the characteristics of the liquid, it is possible for the Model 8 to reduce oil content to less than five parts per million in water. It utilizes a continuous belt and wiper to remove up to 40 gallons of oil per hour from the fluid surface. The unit can be used as a pre-treatment before filtration, and in conjunction with coalescing systems. The versatility of the Model 8 allows it to be used in a wide array of applications in addition to steel mills, such as:

  • Wastewater sumps
  • Parts washers
  • Coolant systems
  • Heat treating fluids
  • Food processing plants
  • Parking lots, garages, and service facilities
  • Outdoor ponds, lakes, and basins
  • Underground tanks
  • Ships' bilges
  • Aircraft service areas and tarmac runoff
  • Truck, locomotive, and other mobile equipment washing facilities

Abanaki Model 8 Oil Skimmer Specifications

The Model 8 can be used in tanks with depths as shallow as one foot, or as deep as 100 feet, and is built to last. With the proper configuration it can handle liquid temperatures up to 212°F, and the pH of the fluid can range from 3 to 13. The skimmer drive includes an oil filled gear reducer with bronze gears and ball bearings. The motor, reducer, and powder coated finish of the housing give the Model 8 exceptionally long life, even under the harshest conditions.

For more information about the Model 8 or other Abanaki products, call your sales representative at (440) 543-7400, or simply click at the button below.

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Topics: oil belt skimmer, oil skimmers, belt skimmer, steel mill, steel mills, model 8

9 Typical Applications For Industrial Oil Skimmers: What Is The Best Solution Of These Applications?

Posted by Tom Hobson on May 25, 2017 2:35:56 PM

The relationship between oil and water in a mixture is well-known and governed by two physical properties:

  • Specific Gravity: Most hydrocarbons have a lower specific gravity than water. Without agitation, oil separates from the water and floats to the surface. These oils are known as LNAPL’s, Light Non-Aqueous Phase Liquid. Oils (and other components) that sink in water have a higher specific gravity and are known as DNAPL’s, Dense Non-Aqueous Phase Liquid.
  • Surface Tension and Affinity: Normally, oil bonds more tightly to itself and other materials than to water. This affinity, and differences in surface tension between oil and water, cause oils to adhere to a skimming medium.

Although designs vary, all oil skimmers rely on specific gravity, surface tension and a moving medium to remove floating oil from a fluid’s surface.

Find out more about the 9 typical applications for Industrial oil skimmers by clicking the button below.

9 Typical Applications For Industrial Oil Skimmers

 

 

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Topics: oil skimming, steel mills, coolant maintenance, parts washer, oil recovery, waterwaste sump, heat treating, industrial applications, food processing, parking garage, outdoor pond

When the Belts Break the Oil Skimmer Will Fail

Posted by Tom Hobson on Jun 22, 2015 10:41:52 AM

The wastewater pits in Steel Mills are a particularly harsh place for oil skimmers to operate. The heavy oils and greases that are typically found in the scale-pits can wear out an oil skimmer if the right skimmer and belt material is not being used.

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Topics: steel mills, oil skimmer

Oil Skimmers for Steel Mills

Posted by Tom Hobson on Jun 19, 2014 5:17:35 AM

Click here to receive a copy of our Solutions Sourcebook. This 43-page handbook offers application notes on more than 40 real-world implementations of oil skimming.
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Topics: oil skimmers, model 4, steel mills, belt oil skimmers

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