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Pyrotechnics Of Ferronickel Rotary Kiln

An energy saving strategy with two energy saving measures has been proposed for reducing energy loss in the rotary kiln-electric furnace (RKEF) for the smelting of ferronickel alloy. One of the measures is to recover the waste heat of exhaust gas from the rotary kiln for preheating and dehydrating the wet laterite ores in the rotary dryer.

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  • Material and energy flows in rotary kilnelectric furnace

    An energy saving strategy with two energy saving measures has been proposed for reducing energy loss in the rotary kiln-electric furnace (RKEF) for the smelting of ferronickel alloy. One of the measures is to recover the waste heat of exhaust gas from the rotary kiln for preheating and dehydrating the wet laterite ores in the rotary dryer.

  • PDF The evolution of the Greek ferronickel production

    It involved roasting reduction up to metallic iron in a Rotary Kiln (R/K) and smelting in an Electric Furnace (E/F). Ferronickel (with 15% Ni) produced in the E/F, was upgraded to 90-95% Ni in an ...

  • Exergy assessment of a rotary kilnelectric furnace

    Nov 01, 2017 The exergy balance of the rotary kiln is calculated with the same equations as the calculation for the rotary dryer, and the results are shown in Table 2. One of the main exergy input for the rotary kiln comes from the bituminous coal (i.e. 54.33%) which is more than half of the total exergy input, similar to the energy proportion.

  • Material and energy flows in rotary kilnelectric furnace

    Oct 25, 2016 The rotary kiln-electric furnace process is the one of the most widely adopted technological process for ferronickel smelting production. A schematic of the RKEF process with rotary dryer, rotary kiln and electric furnace is shown in Fig. 1.As depicted, the RKFF process involves three main processes the dehydration process in rotary dryer the roasting and pre-reduction process in rotary kiln ...

  • nickel ore refining rotary cooler

    Rotary Kiln - Electric Furnace (RKEF) process is a pyrometallurgical technique to extract nickel from laterite ores. It is essentially a two-step process where the ore is first calcined in a rotary kiln and then smelted in an electric furnace. The product of the RKEF process is crude.

  • Calcined Rotary Kiln Dryer Metallurgy Rotary Kiln China

    Rotary Kiln Application Cement kiln is used for making of cement clinker and there are dry and wet methods to make cement. metallurgy chemical kiln is used in metallurgy industry and ironworks for lean iron ore, chromium ore and ferronickel ore calcimine. Rotary kiln is used for calcimine of high aluminum vandal ochre in refractory material ...

  • rotary submerged arc furnace

    Rotary Submerged Arc Furnace Ferronickel. Ferronickel is a ferroalloy typically containing about 7090 iron and 1030 nickel.It is always produced by the rotary kiln-electric furnace rkef smelting process from lateritic nickel ores.But in china, submerged arc furnace saf is the most widely used furnace to produce ferronickel.

  • Technology of red mud resource disposal in Pengfei rotary kiln

    Technical specification. The first step of aluminum smelting is to produce alumina. In the process of alumina production by sintering, the raw materials, such as bauxite, lime, alkali, etc., should be sintered first. The sintering process is carried out in a rotary kiln, and the sintering temperature is about 1300 .

  • Thermodynamic characteristics of ferronickel slag sintered

    The rotary kiln-electric furnace (RKEF) process has undergone a rapid development during the past decade, producing a significant quantity of ferronickel slag. At present, the ferronickel slag has become the fourth largest industrial solid waste in China with a utilization ratio of less than 10 wt%.

  • CN202973836U Rotary kiln for producing ferronickel from

    The utility model provides a rotary kiln for producing ferronickel from Indonesia Sulawesi nickel laterite ore through RKEF technical processing. The rotary kiln comprises a kiln body and a bracket provided with riding wheels to support the kiln body, wherein a drive and transmission device enabling the kiln body to rotate on the riding wheels is arranged on the bracket the kiln body is placed in an inclined

  • Novel Process of Ferronickel Nugget Production from

    total stainless steel production of the world. The rotary kiln-electric furnace (RKEF)2,3) process is chosen by most Chinese ferronickel works due to its good adaptability for various nickel laterite. However, the high amount of water and gangue in laterite always need huge transport cost and energy consumption especially for the lower grade laterite

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