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water scale pit in steel rolling mill

  • Water (scale) pit in steel rolling mill? Yahoo Answers

    03/01/2010· Dear All, Happy New Year to you all, however, I need to know more about water (Scale) pit in steel rolling mill like requirement fundamentals calculation, Est. Please if anyone has any idea or reference that can be useful please advice. Thank you in advance for your cooperation.

  • MILL SCALE OPERATION AT JSW BELLARY HOT

    20/12/2013· How to Build a HINGED HOOPHOUSE for a Raised Bed Garden Duration: 17:02. The Gardening Channel With James Prigioni Recommended for you

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  • Steel and Manufacturing Industry Solutions Water

    The scale pit is used to remove the larger scale and particulate, as well as to skim the oil from the water and is normally sized for 30–45 minutes of retention time. In some mills, this pit also receives wastewater from the hot roll and other miscellaneous processes throughout the mill. This can contribute organics, heavy metals, and other contaminants to the scale pit which must be

  • PSE Engineering GmbH

    PSE Engineering GmbH offers its clients a wide range of services in engineering, design, calculations and project management in the field of pipeline and plant construction and rehabilitation of systems for oil, gas ,water, steam and other media, as well as plants for supplying heat, cooling and potable water.

  • Production of cleaner mill scale by dynamic

    The descaling water and the cooling water wash the mill scale away from the steel surfaces, flow with the mill scale into the flumes underneath the rolling lines, run at a high speed in the flumes and eventually are discharged into the deep and wide mill scale pits. The wastewater in the mill scale pits becomes fairly calm. By gravity, the mill scale settles down to the bottom of the pits. The

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  • scale pit in steel rolling mill Infographic Designer

    scale pit in steel rolling mill. Small Scale Rolling Mill Machinery Crusher Mills, Cone . As a large supplier of used steel mill equipment, we have worldwide sources available for Bar Mills, Rod Mills, Rolling Mills, Reversing Cold mills, Rail Mills, Plate Scale Pit In Steel Rolling Mill

  • What exactly is Mill Scale and what is done about it

    In a rolling mill where the steel will be stretched and squished the mill scale will first be removed mostly by water jets, or by sand blasting in some shops or by vibrating rolls in others and the mill scale will fall into a pit below the equipment where it will also be joined by rolling mill lubricants and bearing oils and water. From there it will be pumped to a holding pond, where

  • Nordic steel mill solution reduces water treatment

    As steel leaves the casting operations, cooling and cutting with water produces mill scale (iron oxides). Mill scale particles range from a few microns up to the size of a fist. They are also heavy and abrasive. (Density 4.9 to 5.2 grams per cubic centimeter). Traditionally, this coarse material is collected in pits to be emptied by cranes or chain-scrapers. Huge settling basins then separate

  • The Hot Rolling Process California Steel Industries

    The Hot Rolling Process The primary function of the Hot Strip Mill is to reheat semi-finished steel slabs of steel nearly to their melting point, Sprays above and below the transfer bar blast it with 1,500 psi jets of water to break up the scale that has re-formed since the descaling operation at the entry of the last roughing mill, as well as any scale that has persisted through earlier

  • Water Requirements of the Iron and Steel Industry

    Water Requirements of the Iron and Steel Industry By FAULKNER B. WALLING and LOUIS E. OTTS, JR. In operations such as rolling steel in which the water comes into contact with the steel being processed, better quality water is used, although water containing as much as 3,410 ppm dissolved solids has been used for this purpose. Treatment of water for use in the iron and steel industry was

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  • Rolling (metalworking) Wikipedia

    Most steel mills have rolling mill divisions that convert the semi-finished casting products into finished products. the surface is covered in mill scale, which is an oxide that forms at high temperatures. It is usually removed via pickling or the smooth clean surface (SCS) process, which reveals a smooth surface. Dimensional tolerances are usually 2 to 5% of the overall dimension. Hot

  • What exactly is Mill Scale and what is done about it

    In a rolling mill where the steel will be stretched and squished the mill scale will first be removed mostly by water jets, or by sand blasting in some shops or by vibrating rolls in others and the mill scale will fall into a pit below the equipment where it will also be joined by rolling mill lubricants and bearing oils and water. From there it will be pumped to a holding pond, where

  • Production of cleaner mill scale by dynamic

    The descaling water and the cooling water wash the mill scale away from the steel surfaces, flow with the mill scale into the flumes underneath the rolling lines, run at a high speed in the flumes and eventually are discharged into the deep and wide mill scale pits. The wastewater in the mill scale pits becomes fairly calm. By gravity, the mill scale settles down to the bottom of the pits. The

  • Soaking Pits For Steel Ingots. On The Successful

    On The Successful Rolling Of Steel Ingots With Their Own Initial Heat By Means Of The Soaking Pit Process. By Mr. JOHN GJERS, Middlesbrough. [Footnote: Paper read before the Iron and Steel Institute at Vienna.] When Sir Henry Bessemer, in 1856, made public his great invention, and announced to the world that he was able to produce malleable steel from cast iron without the expenditure of any

  • MILL SCALE OPERATION AT JSW BELLARY

    20/12/2013· PIT SCALE Duration: 9 N Scale Steel Mill Train Layout! Union Railroad Great Model Railroads Duration: 2:53. djstrains Recommended for you. 2:53. Jindal Stainless Limited Duration: 0:41

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  • The Hot Rolling Process California Steel Industries

    The Hot Rolling Process The primary function of the Hot Strip Mill is to reheat semi-finished steel slabs of steel nearly to their melting point, Sprays above and below the transfer bar blast it with 1,500 psi jets of water to break up the scale that has re-formed since the descaling operation at the entry of the last roughing mill, as well as any scale that has persisted through earlier

  • Water Requirements of the Iron and Steel Industry

    Water Requirements of the Iron and Steel Industry By FAULKNER B. WALLING and LOUIS E. OTTS, JR. In operations such as rolling steel in which the water comes into contact with the steel being processed, better quality water is used, although water containing as much as 3,410 ppm dissolved solids has been used for this purpose. Treatment of water for use in the iron and steel industry was

  • World first: Linde and Ovako heat steel with

    Linde and specialty steel manufacturer Ovako have conducted a full-scale test to heat steel with hydrogen before rolling in Sweden, which the two companies say is a world first. Performed with good results in one of Ovako’s pit ovens at its steel mill in Hofors, controls of the steel show that heating with hydrogen did not affect the quality of the steel.

  • Development of a water treatment plant for a

    rolling-mill train is 90 Tonnes/hour, and we estimate a formation of scale equal to 0.2% of the production total, the maximum amount of scale that the contact water will remove is 18 Kg/hour, with

  • Scale formation and its removal in Hot Rolling process

    Scale formation and its removal in Hot rolling Process Santosh Chacko, Suresh Vasani, A.K.Ray Lechler (India) Pvt. Ltd., Thane, India E-mail: [email protected] During hot rolling of steel, its surface is exposed to air which leads to oxidation, resulting in scale formation. The scale formation is affected by the temperature, steel grade, surrounding atmosphere and the exposure time

  • Steel Mini-Mill oilskim

    SOLUTION: The steel mini-mill now uses six Oil Skimmer’s oil-recovery systems to remove the tramp oil from the water in the collection basins as well as from a scale pit that was added during a rolling mill upgrade at the hot-strip mill. When operating continuously, each system removes 150 gallons of oil a day, said Ehren Plew, plant mechanical engineer, although they are capable of removing

  • Mill Scale IspatGuru

    Mill scale is usually removed by process water used for descaling, roll and material cooling, and by other methods. It is subsequently separated by gravity separation techniques. The formation of oxide scale not only results in a significant loss of yield of steel, but also deteriorates the surface quality of the steel product caused by rolled-in scale defects or roughened surface. In addition

  • Water Reuse Strategies: Steel Industry Case Studies

    In the steel manufacturing process where the molten steel is cast, high volumes of water are used to quench and cool the steel. This contact or direct cooling water becomes contaminated with high levels of suspended solids and mill scale along with oil and grease. Because of the quantity of water required, it is necessary to cool this water and

  • Rolling (metalworking) Wikipedia

    Most steel mills have rolling mill divisions that convert the semi-finished casting products into finished products. the surface is covered in mill scale, which is an oxide that forms at high temperatures. It is usually removed via pickling or the smooth clean surface (SCS) process, which reveals a smooth surface. Dimensional tolerances are usually 2 to 5% of the overall dimension. Hot

  • Macro Defects in Steel Rolling Defects

    Star crack Rolling defects Steel pit Rolling defects Sticker Hot rolled products Rolling defects Sticker break Electrolytic galvanizing line Rolling defects Sticker break Temper mill Rolling defects Sticker breaks Cold rolled uncoated sheet Rolling defects Sticky scale Rolling defects

  • rolling mill scale pit ecolelenvolee.be

    Rolling Mill Scale Pit balieieper . scale pit working in rolling mill . water (scale) pit in steel rolling mill. Mill scaleWikipedia. Mill scale often shortened to just scale is the flaky surface of hot rolled steel consisting of theMill scale generated in rolling mills will be collected and sent to a sinter plant for recycling.When this refractory is cast and preheated these scales . Get

  • Development of a water treatment plant for a

    rolling-mill train is 90 Tonnes/hour, and we estimate a formation of scale equal to 0.2% of the production total, the maximum amount of scale that the contact water will remove is 18 Kg/hour, with

  • Separation of Mill Scale from Flume SpringerLink

    The mill scale particles settled to the bottom of the separator and continuously moved with the water into a classifier, where the mill scale was removed and dewatered. Results of the trial show that compared to the conventional practice of sedimentation and reclamation of the mill scale in the pits, using the new method, the mill scale is more than five times cleaner with negligible oil, and

  • Improving Rolling-Mill Lube-Oil Performance And Useful Life H

    encounter rolling-mill oils that look like chocolate milk or mud (cloudy), with water levels from 3000 ppm (0.3%) up to 150,000 ppm (15%). Once the oil begins Improving Rolling-Mill Lube-Oil Performance And Useful Life Larry Edwards, Aaron Hoeg and Richard Trent

  • A Study on the Characteristics of Oxide Scale while Hot

    finishing strip mill. An investigation of scale growth on an as-supplied surface proved that the growth of the original 21m layer of scale decreased as the steel μ oxidized further. The effects of hot rolling on the surface roughness and oxide layers such as reduction, roll speed, and entry temperature, were investigated to identify any

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