US20070157761A1 US11/329,846 US32984606A US2007157761A1 US 20070157761 A1 US20070157761 A1 US 20070157761A1 US 32984606 A US32984606 A US 32984606A US 2007157761 A1 US2007157761 A1 US 2007157761A1 Authority US United States Prior art keywords iron induction furnace ore iron ore furnace Prior art date 2006-01-11 Legal status (The legal status
Mar 10, 2021· 6. Electric furnace bottom blowing electric furnace bottom blowing. Through the nozzle placed at the bottom of the furnace, N2, Ar, CO2, CO, CH4, O2 and other gases are blown into the molten pool in the furnace according to the process requirements to achieve the purpose of accelerating the melting and promoting the metallurgical reaction process.
Feb 14, 2018· Crucible furnace = for non ferrous metal. Electric furnace= dielectric and induction furnace. 15. Cupola Furnace A cupola furnace is a melting device used in foundries that can be used to melt scrap metal and pig iron (crude iron as first obtained from a furnace) for production of various cast irons and malleable cast iron.
A Aluminium recycling furnace operator will place aluminum parts or aluminum ingot/scrap as a charge in the induction melting aluminum recycling furnace and start the furnace to begin the melting process. Adding more aluminum charge this process is advisable as molten aluminum transmits the heat better.
Nov 02, 2012· Method for the assay and recovery of precious metals US . A complete separation of molten lead containing precious metals from slag is easily analysis of the extract. when using an induction furnace, »More detailed
Slag forms when iron ore is melted and reduced into molten pig iron in blast furnaces. The amount of slag generation is roughly 300 kg per ton of pig iron produced, and the annual production of blast furnace slag (BF slag) in Japan exceeds 24 million t (all units herein are metric).1) As seen in Fig. 1, BF slag is divided into air-cooled
2.0 PROCESS DESCRIPTION ... Arc furnaces differ from induction furnaces in that the charge material is directly exposed to an electric arc, and the current in the furnace terminals passes through the charged material. After the charge is partially melted the foamy slag process begins where oxygen and
The induction heating process has been considered as high pro-ductivity, repeatable quality, and green heating technology compared to other fuel-fired furnaces (Dang, 2012). The aim of this paper is to increase the efficien-cy of the Induction Furnace (IF) by using a foaming slag layer as insulation material to reduce the heat
Jan 29, 2015· In addition to being used to keep ladles clean and free of slag buildup, incorporating 1-1.5 lbs. of flux has improved the inductor life of pressure-pour furnaces and coreless induction furnaces around the world. Alkaline-based fluxes can extend coreless furnace refractory life significantly by preventing slag buildup.
Figure 1: Flow chart of the pyrometallurgical copper process 1.3 Characterisation of the slag The slag type used in copper industry is normally a fayalitic based slag . After processing the slag in the submerged arc furnace the slag still contains valuable metals. A typical slag composition including the main metal contents is given in Table 1.
composition is adjusted to meet product specifications; and slag removal and molding the molten metal. 126.96.36.199.1 Furnace Operations - The 3 most common furnaces used in the iron foundry industry are cupolas, electric arc, and electric induction furnaces. The cupola is the major type of furnace used in the iron foundry industry.
Mar 01, 2018· The process of preparing pig iron was using hot blast cupola (HBC) furnace which was injected with charcoal powder to improve temperature process and reduction zone in the furnace. The process was started by washing process and magnetic separation of raw material as an effort to improve iron content degree from crushing plant waste.
B. Generalized Process Description ... Treatment of lead ores begins with crushing, grinding, and concentrating. Pelletized concentrates are fed with other ... and blast furnace slag. The speiss and matte are sold to operators of copper smelters for metals recovery, and the slag is stored and partially recycled. The bullion is drossed (agitated ...
Jul 13, 2016· Effects of temperature and slag basicity on the reduction rate of iron oxide in molten synthetic electric arc furnace oxidizing slag by Al-40 wt.%Fe alloy was investigated. An alloy sample was dropped into molten slag in an MgO crucible. When the initial slag temperature was 1723 K, there was no reduction. However, when the initial slag temperature was 1773 K and the slag basicity was
reverberatory furnace leakage 1.50 silver retort building 0.90 sinter crushing, screening, discharge 0.75 sinter machine leakage 0.34 sinter transfer to dump 0.10 slag cooling 0.24 zinc fuming furnace vents 2.30 ore crushing 1.00 sintering (updraft) 106.50 secondary copper smelting cupola insulated copper wire 115 scrap copper and brass 35
Figure 1: Typical slag buildup in a coreless induction furnace (gray shaded areas) The hottest area of medium and high frequency coreless furnaces is at the mid-point of the power coil. All areas of slag deposit will be at a much lower temperature than those occurring at the center of the coil.
Description 1kg mini furnace 2kg mini furnace 3kg mini furnace Model M.MF.01000 M.MF.02000 M.MF. 3. Safety operation during whole melting process, only need to move the tilting handle to pour liquid metal into ingot mould as melting finished.
furnaces; principally for the processing of ore fines of sizes less than 1 mm without the need for agglomeration. Since the inception of this process, the DC arc furnace test facilities at Mintek have been employed to test varying composition, grade and mineralogy of chromite ores using different slag
Dec 26, 2017· Induction slag melting (ISM) was developed by the Bureau in the 1970s as a technique for vacuum induction melting titanium in a segmented copper crucible. Its original intent was to consolidate titanium castings revert and loose titanium scrap into electrodes for melting in consumable-arc furnaces.
May 05, 2019· IF steel slag is a secondary melting slag in which ferrous metal scrap and fluxes are melted using an electromagnetic field to produce steel/cast iron and it generates 1015% of by- product as slag. Induction furnace slag is not used in the cement/aggregate production due to its low content of CaO , it also has high content of iron oxide.
4 Slag from induction furnace --- 80 TPD Brief description of process : The industry is engaged in manufacturing of MS Billets using Electrical induction furnace. During the process, slag is generated as a solid waste and is being crushed in primary jaw crusher, roller
Induction furnace capacities range from less than one kilogram to one hundred tonnes, and are used to melt iron and steel, copper, aluminum, and precious metals. The advantage of the induction furnace is a clean, energy-efficient and well-controllable melting process compared to most other means of
source. Slag-cleaning-furnace matte is granulated for processing by the ACP, while slag is granulated and processed in the slag mill. The slag mill and flotation circuit treats granulated slag from the electric furnaces and slag-cleaning furnace to recover entrained
Induction and arc furnaces use electricity to melt steel and cast iron. ... Cold crushing strength: The cold crushing strength is the resistance of the refractory to ... The process flow and operating cycles of a continuous pusher type is the same as that of the 2.
May 08, 2021· Electric arc furnace slag is produced during the manufacture of crude steel by the electric arc furnace (EAF) process. In this process steel scrap with additions of fluxes (e.g., lime[stone] and/or dolomite) are heated to a liquid state by means of an electric current. During the melting process the fluxes combine with non-metallic scrap components and 
A water/metal explosion can occur in any type of furnace. For an induction furnace, however, The after effect may be more serious and include the possibility of additional explosions caused By liquid in a ruptured cooling system coming in contact with molten metal in the bath. (See Cooling system description below.)
Oct 27, 2011· EAF Slag. Process. The BOS process needs to be fed with molten iron, whereas the Electric Arc Furnace (EAF) can operate with a feed consisting partly or entirely of solid metal such as scrap. This gives rise to two significant differences in the slag
Jul 18, 2013· slag,iron furnace slag,slag processing,induction furnace slag We are into the steel manufacturing by the process of induction melting furnace we have developed first ever slag crusher metal chip recovery plant that
Jul 18, 2013· slag crushing process for recovering metal from induction Posted at: July 30, 2012. slag,iron furnace slag,slag processing,induction We are into the steel manufacturing by the process of induction melting furnace since
From the results obtained it is been observed that the production of induction furnace slag is 37.5 tons/year and metal contain in that slag is 4.75 tons/year which is costing around Rs. 1,42,500. We also calculate electricity and manpower cost for crushing
description of induction furnace slag crushing process. Less slag forms in induction furnaces than in other furnace types because of the purity of ... Posted at: July 30, 2012. slag,iron furnace slag,slag
Sep 01, 2013· Additionally, the dynamic corrosion evaluation was carried out in an induction furnace at 1600 °C for 4 h, using molten metal and slag Y (original or conditioned composition) as corrosion agents. The furnace was lined with refractory sections and the liquid slag renewed every 30 min to keep the same slag composition and activity during the test.
Table - 1 Production of Slag No. of heat Weight of CI (kg) Slag produced (kg) 1 650 12.5 12 per day 7800 144.6 312 per month 16900 3133 3744 per year 202800 37596 Induction furnace slag contain metal due to 1) Smelting i.e process in which slag forms a layer above molten metal so that some particles in molten metal stuck to the slag.
The paper presents examination of actuation warmer slag of ferrous foundry at Jadhao Steels and Alloys . From the results of the present study we can say that Induction Furnace Slag contain 12.5 percent of metal so that it minimize the adverse impact of disposal on the environment. IndexTerms Electric induction furnace, Metal, Slag, Steel
induction furnace slag crushing processing pakistan. Slag Processing The slag materials are received and processed at Just Refiners Each material lot is prepared sampled and evaluated for precious metal content In addition a scan is carried out by an independent laboratory to determine the presence of deleterious elements With each shipment Just Refiners determines the safestContinue reading...
Apr 19, 2018· Induction Furnace Refractory Lining with Silica Ramming Mass. Induction furnaces are used for melting cast iron, mild steel and various alloy steels in foundries and making of steel in mini steel plants using sponge iron. Lining is the important part of induction furnace. Furnace performance is directly related to the performance of its lining.
Slag produced by flash furnace operations contains significantly higher amounts of copper than reverberatory or electric furnaces. Flash furnace slag is treated in a slag cleaning furnace with coke or iron sulfide. Because copper has a higher affinity for sulfur than oxygen, the copper in the slag (as copper oxide) is converted to copper sulfide.