Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
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Recycling concrete &building rubble is not only able to bring profit to investors, but also good for environment protection.
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By absorbing the advanced technology from the world, we researched and designed PF series impact crusher.…
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Base on the plentiful experience of producing and marketing of impact crusher, Sofol R&D institution…
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Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary…
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The vibrating screen is a kind of sieving equipment of international advanced level, developed by our…
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Sofol VSI Series vertical shaft impact crusher is designed by reputed German expert of Sofol and every…
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Our Top 10 Portable Oxygen Concentrators. Best Compact Design: OxyGo Next. Best Quiet Operation: GCE Healthcare Zen-O Lite. Best Liter Size Options: Precision Medical EasyPulse 3-Liter. Best ...
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Nickel Matte Rotary Converter Oxygen Top Blow Converting. steel making 515 1044 Sophie . Nickel-Molybdenum Rotary Kiln Oxygen Top Blown, Refining Process The Nickel-Molybdenum Rotary Kiln Oxygen Top Blown process is a method of refining nickel-molybdenum alloy material. The main objective of the process is to remove impurities, …
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In 1985 a 2.5-tonne top blown rotary converter was installed in the silver refinery at Cominco's Trail Operation to carry out the final cupellation of burndown metal to Dore metal. The furnace is fired with an oxygen-natural gas lance which is capable of achieving a variety of furnace conditions, varying from reducing to highly oxidizing. Reaction rates …
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Later, as China's steelmaking technology developed rapidly, due to the limitation of capacity and volume, oxygen side-blown converters were transformed into oxygen top-blown converters and some were even shut down in production. In 1999, the last oxygen side-blown converter was shut down in Tangshan steel.
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RAUCH has taken up this challenge with the construction of a Top Blown Rotary Converter. Design: Rotating and tiltable reaction vessel to heat residues to above …
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At the Institute for Process Metallurgy and Metal Recycling IME a new process based on a top blown rotary converter (TBRC) is developed to recycle electronic scrap autothermically.
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Action of free oxygen jet . Velocity of the free O2 jet is important. Axial velocity decreases as the distance downstream the nozzle increases due to entrainment of the surrounding. In the converter as the blow begins, the surrounding of O2 jet is hot atmosphere. As the blow continues the jet surrounding changes from carbon monoxide …
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Steel - Basic Oxygen, Refining, Alloying: More than half the world's steel is produced in the basic oxygen process (BOP), which uses pure oxygen to convert a charge of liquid blast-furnace iron and scrap into steel. The basic oxygen furnace (BOF) is a refractory-lined, tiltable converter into which a vertically movable, water-cooled lance is …
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The conversion of high-iron electric furnace mattes was achieved with apparent oxygen efficiencies in excess of 100 percent. Platinum and palladium recoveries averaged 99 percent, and copper and nickel recoveries were 94 percent. ... Mining Company were smelted and refined in an integrated pilot plant consisting of a …
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The conclusions obtained from the experiments made in the cooling model of Plexiglas in geometrical scale 1/6 for a 220 t BOF vessel converter of steel. The main conclusions on the jet penetration are: 1. Reducing the distance lance bath (0.118 m) increases the penetration jet and touched converter bottom (0.230 m).
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In 1985 a 2.5-tonne top blown rotary converter was installed in the silver refinery at Cominco's Trail Operation to carry out the final cupellation of burndown metal to Dore …
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approximately 20 tonnes with air blowing and 10 tonnes with oxygen enrichment. Since submerged blowing is restricted with respect to the amount of blast and oxygen enrichment, alternatives for refining mattes in small scale projects must be sought. The top-blown rotary converter (TBRC) fills this requirement.
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A Kaldo converter (using the Kaldo process or Stora-Kaldo process) is a rotary vessel oxygen based metal refining method. Originally applied to the refining of iron into steel, with most installations in the 1960s, the process is (2014) used primarily to refine non ferrous metals, typically copper. In that field, it is often named TBRC, or Top ...
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A Kaldo converter (using the Kaldo process or Stora-Kaldo process) is a rotary vessel oxygen based metal refining method. Originally applied to the refining of iron into steel, …
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top-blown rotary converter. [ ¦täp ¦blōn ′rōd·ə·rē kən′vərd·ər] (metallurgy) A rotary converter used for making nickel and steel; oxygen and other gases are fed to the furnace by a lance at the elevated end of the converter to permit formation of a metal product without oxidation. McGraw-Hill Dictionary of Scientific ...
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The body height-diameter ratio of oxygen bottom-blown converter is slightly less than that of oxygen top-blown converter. A 30–230 t converter has 5–22 oxygen nozzles. The ratio between nozzle diameter and bath depth is 1/35–1/15. Proper distance must be kept between nozzles and between nozzle and furnace wall.
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Numerical simulations are performed to explore the basic blowing characteristics of a dynamic free lance converter applied to hot metal dephosphorization technology, in which the sliding mesh model (SMM) is used to regulate the rotation motion of the top lance and the volume of fluid (VOF) model is inducted to simulate flows of …
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By reading these diagrams, you can gain valuable insights into the internal wiring and components of a rotary phase converter. 1. Power input: The diagram typically indicates the power input, which can be either single-phase or three-phase. This section shows how the input power is connected to the converter. 2.
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The furnace body of oxygen top-blown converter is comprised of furnace shell, lining, trunnion, and backing ring. The furnace body of converter is intended to contain molten iron for the purpose of oxygenated converting. It is fixed on the seat supported by the backing ring and trunnion, and rotates in positive and negative 360° …
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Oxygen top-blown converter is the rotatable smelting furnace where oxygen is blown in from the top for steelmaking. It consists of converter body and tilting …
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Download scientific diagram | Top-blown rotary converter (TBRC) with lances for injecting WEEE powders and oxygen [5]. from publication: Applications of SEM Automated...
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The second stage of matte smelting is converting the sulfides to metal.For many years the standard vessel for this operation has been the Peirce-Smith converter. This is a rotatable, refractory-lined, horizontal steel drum with an opening at the centre of the top for charging and discharging and a row of tuyeres across the back through which air, oxygen …
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Phase Converters. Phase Conversion is the process of converting single phase power into 3 phase power. A "phase converter" creates a third line of voltage (a third sine wave) allowing three phase power to be possible in a single phase environment. NAPCco offers three styles of single phase to 3 phase converters Rotary, Static, and Digital.
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Top and bottom combined blown steelmaking process is a converter steelmaking technology in which the top oxygen gun is inserted into the furnace mouth to …
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The process is known as top-blown rotary converter. Air or air–oxygen mixture was blown through an inclined water-cooled lance onto the bath surface. Copper …
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By injecting the oxygen directly into the bath, rather than blowing it on top (as in the case of the reverberatory cupellation furnace or top-blown rotary converters), the oxygen transfer efficiency is not impeded by the presence of the slag layer. It results in an oxygen utilization efficiency approaching .
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The top blown basic oxygen furnace is equipped with the water cooled oxygen for blowing oxygen into the melt through 4-6 nozzles. Oxygen flow commonly reaches 200-280 ft3/(min*t) (6-8 m3/(min*t)). The oxygen pressure is 150-220 psi. Service life of oxygen lance is about 400 heats.
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Download scientific diagram | Top-blown rotary converter (TBRC) with lances for injecting WEEE powders and oxygen [5]. from publication: Evaluation of Recyclability of a WEEE Slag by...
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Top Blow Rotary Converter The RAUCH Top Blown Rotary Converter is used for recycling steel scrap. An example: The mineability of zinc ore is currently around 4% zinc content. ... Rotating and tiltable reaction vessel to heat residues to above 1300°C by means of oxygen burners and to separate and recover the material contained therein (zinc ...
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A process for treating anode slimes originating from copper, lead or nickel electrorefining to recover the precious metals contained therein is disclosed. The process comprises the steps of charging the slimes into a tiltable and rotatable top blown rotary converter (TBRC), smelting the slimes in the TBRC while it is rotated on an axis inclined to the …
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In a top-blown converter, limitations imposed by the re fractory tuyere line on the extent of oxygen enrichment do not exist. The top-blown converter can be blown with oxygen if required, so that even CU2S concentrates contain ing no iron can be smelted autogenously. We are 'using two oxygen top-blown rotary converters at
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High-phosphorous hot metal created difficulty for refining in top blown process that leads to develop rotary oxygen process of steelmaking. The basic principles are (i) CO gas is burned inside the vessel, generating heat transfer to the lining of vessel and (ii) rotation of converter to get heat transfer from lining of vessel to molten bath.
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