rotary submerged arc furnace ferronickel

Submerged arc furnace (ferroalloy) SMS group

Ferronickel is mainly produced in submerged-arc furnaces by reducing lateritic nickel ores. The process aims to transfer most of the nickel into the metal phase. It starts with pre-heated and pre-reduced ores which are hot charged as calcine ...

ELECTROMAGNETIC PHENOMENA IN AN ELECTRIC

Ferronickel is produced in submerged-arc electric furnaces (EAF), by chemical reduction of nickel laterite ores [1-3]. In Greece laterites are treated by LARCO S.A. following roasting reduction in four rotary kilns and smelting reduction in five EAFs. In Fig. 1(a), the air, slag and ferronickel layer are displayed as well as the

CN106636625A - Method for producing ferronickel by ...

The invention provides a method for producing ferronickel by adopting a rotary kiln direct reduction-RKEF (Rotary Kiln-Electric Furnace) combination method. The method comprises the following steps: drying a laterite nickel ore for later use; crushing and screening an appropriate amount of the dried laterite nickel ore, and then mixing the screened laterite nickel ore with a

STUDY ON SLAG RESISTANCE OF REFRACTORIES IN

Submerged arc furnace, SAF for short, is the main production equipment in pyro-metallurgical processing of ferronickel from laterite ores. Ferronickel slag pro-duced from this technological process is very corrosive owing to the high proportion of SiO 2 and Fe n O, which is one of the main reasons resulting in the breakout of furnace linings.

PILOT PLANT PRODUCTION OF FERRONICKEL FROM NICKEL

submerged-arc furnace process. During the dehydration of the ore, a large fraction of fines is generated. ... view to future commercial applications of the DC-arc ferronickel process. ... (rotary kiln product and dust) was processed together with 5.7 tons of South African bituminous coal. The * Residual nickel in discard slag, ...

AC Submerged Arc Furnace (SAF) TENOVA

The project scope included the design, supply, installation and commissioning of 2 x 66 MVA closed submerged arc furnaces, complete with single shaft pre-heating systems. Tenova Pyromet had supplied and installed ASA Metals No1 furnace in 1999 and No2 furnace in 2005.

Submerged arc furnace (ferroalloy) SMS group

Ferronickel is mainly produced in submerged-arc furnaces by reducing lateritic nickel ores. The process aims to transfer most of the nickel into the metal phase. It starts with pre-heated and pre-reduced ores which are hot charged as calcine ...

ELECTROMAGNETIC PHENOMENA IN AN ELECTRIC

Ferronickel is produced in submerged-arc electric furnaces (EAF), by chemical reduction of nickel laterite ores [1-3]. In Greece laterites are treated by LARCO S.A. following roasting reduction in four rotary kilns and smelting reduction in five EAFs. In Fig. 1(a), the air, slag and ferronickel layer are displayed as well as the

Pragmatic analysis of the electric submerged arc furnace ...

1. Introduction. Nickel is of particular economic consequence in the production of stainless steels, superalloys and fuel cells [1,2].The principal nickel production route comprises the reductive smelting of calcine in electric submerged arc furnaces (EAFs); calcine is the yield of reductive roasting of nickelferrous lateritic ores in rotary kiln furnaces [3–5].

AC Submerged Arc Furnace (SAF) TENOVA

The project scope included the design, supply, installation and commissioning of 2 x 66 MVA closed submerged arc furnaces, complete with single shaft pre-heating systems. Tenova Pyromet had supplied and installed ASA Metals No1 furnace in 1999 and No2 furnace in 2005.

PILOT PLANT PRODUCTION OF FERRONICKEL FROM

submerged-arc furnace process. During the dehydration of the ore, a large fraction of fines is generated. ... view to future commercial applications of the DC-arc ferronickel process. ... (rotary kiln product and dust) was processed together with 5.7 tons of South African bituminous coal. The * Residual nickel in discard slag, ...

[PDF] NEW TRENDS IN SUBMERGED ARC FURNACE

The plant combines a cold briquetting line with the submerged arc furnaces and will have a nominal annual production of approx. 150 000 t high carbon ferro chrome. A picture of a mini sinter plant is shown in Figure 5. Figure 5. Mini sinter plant. Figure 6. Rotary hearth furnace/submerged arc furnace

(PDF) Furnace technology for ferro-nickel production - An ...

A review is presented of the furnace cooling system design and operating developments since the initial furnace start-up in January 2001 of the Chambishi DC-arc furnace to produce ferrocobalt alloy.

New trends in submerged arc furnace technology

During the last 100 years, the submerged arc furnace has been one of the most amazing diversified melting units. These furnaces have found their application in more than 20 different main ...

(PDF) FERRONICKEL SLAG. USES AND ENVIRONMENT 68

3. Reductive smelting of the calcine from the rotary kilns is taking place in open bath submerged arc electric furnaces, for the production of a low grade primary ferronickel alloy (~ 15% Ni) and a ferrosilicious slag. 4. Enrichment in nickel (up to 20–30% Ni) and refining of primary alloy in O.B.M. converters by blowing pure oxygen.

Production of ferronickel from nickel laterites in a DC ...

Example 2 - 120 kW test . A 120 kW DC-arc furnace was used for the processing of laterite calcine blends, with the objective being the study of the smelting behaviour of materials with SiO 2 /MgO ratios ranging from 1.2 to 3.0. The smelting of laterite types having a range of Fe contents from 15 to 20% was tested at the same time. A part of the test was devoted to the smelting of lateritic ...

The effect of sulfur in rotary kiln fuels on nickel ...

Rotary Kiln - Electric Furnace (RKEF) process is the most commonly used pyrometallurgical technique for processing nickel laterite ores and is mainly suited for saprolite deposits. Sulfur is one of the most harmful elements in crude ferronickel obtained via the RKEF process and adversely affects the mechanical properties of the final product. Typically, laterite ores contain insubstantial ...

Ferronickel - HarbisonWalker International

Ferronickel. The rotary kiln and electric furnace process has long been the most commonly employed method of recovering nickel from saprolitic laterite ores. Production improvements have been achieved over the years by the adoption of “shielded arc” smelting and the installation of water-cooled copper cooling elements in the furnace ...

Ferronickel - an overview ScienceDirect Topics

The hot roasted charge is fed into the submerged arc furnace of 50 MVA with six 1200 mm electrodes (Fig. 10.7) operating at a 30 to 40 kA current. FIGURE 10.7 . Ferronickel smelting furnace: 1, shell; 2, lining; 3, cover; 4, gaskets; 5, current bus bars; 6, electrode moving mechanism; 7,

Pragmatic analysis of the electric submerged arc furnace ...

A transient mathematical model was developed for the description of fluid flow, heat transfer and electromagnetic phenomena involved in the production of ferronickel in electric arc furnaces. The key operating variables considered were the thermal and electrical conductivity of the slag and the shape, immersion depth and applied electric ...

[PDF] NEW TRENDS IN SUBMERGED ARC FURNACE

The plant combines a cold briquetting line with the submerged arc furnaces and will have a nominal annual production of approx. 150 000 t high carbon ferro chrome. A picture of a mini sinter plant is shown in Figure 5. Figure 5. Mini sinter plant. Figure 6. Rotary hearth furnace/submerged arc furnace combination [7].

Estimation of greenhouse gas emissions from ferroalloy ...

Jan 01, 2013  The rotary kiln-electric furnace smelting process is used almost universally for the production of ferronickel from nickel laterite ores. Ferrochromium is conventionally produced in submerged-arc furnaces.

MCC International XinXing Cast Pipe Office

On February 12th 2015, MCC international LTD winning Civil Works for Indonesia Ferro-nickel Project (Phase-I) of PT.MSP and Installation of Submerged Arc Furnace and Auxiliary Facilities for Indonesia Ferro-nickel Project (Phase-I) of PTMSP Located in OBI Island in North Maluku, Indonesia , An annual output of 0.5 million tons of Rotary Kiln-Submerged Arc Furnace ferronickel

Chinese JV to Ramp Up Ferro-Nickel Output in Indonesia

Jun 28, 2018  The second phase includes the construction of four rotary kiln-submerged arc furnace production lines for ferronickel as well as supportive generator units and public infrastructure. The project's total investment is expected to reach USD352 million and it will take more than five years for investors to recoup their outlay.

MCC19 Develops Targeted Three-Level Safety Education ...

Jun 17, 2015  MCC19 is responsible for the contracting, building, civil engineering and installation of a 3×33MVA rotary kiln/submerged arc furnace ferronickel production line and the supporting public auxiliary facilities for 3×38MW thermal power generation. The special geographical location, weather conditions, unfamiliar local culture and laws and ...

SINTERING OF DUST AND SLUDGE GENERATED IN

enterprises. The current most common ferronickel technology includes several operations. They are pretreating of laterite ore by its crushing down to required small size particles and mixing it with lime and carbon reductant followed by calcining it in a rotary kiln. The produced calcine is smelted in submerged arc furnace for

CN103602813A - Elevated short-process energy-saving novel ...

The invention discloses an elevated short-process energy-saving novel RKEF (Rotary Kiln Electric Furnace) ferro-nickel alloy production process, comprising the following steps: (1) drying; (2) burdening; (3) roasting-prereduction; (4) electric furnace smelting; and (5) casting molding. The invention also discloses elevated short-process energy-saving novel RKEF ferro-nickel

Energy Consumption and Greenhouse Gas Emissions of Nickel ...

production in a kiln [6], ferronickel smelting in a rotary kiln-electric furnace [7], steelmaking in an electric arc furnace [8,9], and silicon alloy production in an electric furnace [10]. The current study was initially inspired by the work in the “Sourcing Edge”

Nickel, Ferronickel, Nickel Pig Iron, Nickel-based Alloys ...

Nickel. Nickel is a transition metal element, element symbol Ni, located in group VIII of the fourth period, atomic number 28. Nickel is mainly used in the fields of steel, nickel based alloys, electroplating and batteries, and is widely used in various military manufacturing industries such as aircraft and radar, civil machinery manufacturing and electroplating industries.

Exergy assessment of a rotary kiln-electric furnace ...

Moreover, the exergy destruction due to chemical reactions of rotary dryer, rotary kiln and electric furnace is 20.4%, 27.1% and 5.1%, respectively. It is also found that combustion is the dominant factor for the efficiency loss of rotary dryer and rotary kiln and slag with high temperature contributes most for the efficiency loss of electric ...

CURRENT AND POTENTIAL APPLICATIONS OF FLUID-BED

calcining. Submerged-arc furnaces , moreover, require the feed be lumpy; fine ores need to be pelletized, sin-tered or briquetted. The standard industrial unit for pre-treatment is the rotary kiln. It and its attendant diffi-culties have been around for many years.

Steelmaking Scarp Melting 100 110 120 Mt Ton Steel Furnace ...

Steelmaking Scarp Melting 100 110 120 Mt Ton Steel Furnace Smelting Furnace Submerged Arc Furnace With China Factory Price , Find Complete Details about Steelmaking Scarp Melting 100 110 120 Mt Ton Steel Furnace Smelting Furnace Submerged Arc Furnace With China Factory Price,Smelting Furnace,Submerged Furnace,Furnace from Industrial Furnace

Century Tsingshan New Year Sports Game

Century Tsingshan New Year Sports Game. At 13:30 sharp on December 31, 2016, the New Year Fun Sports Game of Guangdong Century Tsingshan Nickel Industry Co., Ltd. formally opened at the basketball court of Century Tsingshan.

Iron Making Blast Furnace From Bimelt

The lime kiln has shaft kiln, rotary kiln, myers kiln, etc. At present, the most widely used type include shaft kiln and rotary kiln, and the cost performance of shaft furnace is highest. Calcined lime have coal fired and gas fired types, the gas consumption is about 1600~1900m³per month for one ton output of lime. Coal powder injection system