Duplex-furnace for smelting of manganese alloys from ferrimanganese bases and concentrates and anthropogenic wastes of metallurgy |
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IPC classes for russian patent Duplex-furnace for smelting of manganese alloys from ferrimanganese bases and concentrates and anthropogenic wastes of metallurgy (RU 2380633):
 Device for gas-thermal oxidation of objects made from titanium and titanium-containing alloys / 2369663
Invention relates to equipment for passivation of metal surfaces, more specifically to devices for gas-thermal oxidation of objects made from titanium and titanium-containing alloys. The device has an oxidation chamber, fitted with a cooling system and a heating system, a unit for feeding gaseous mixture into the oxidation chamber, a unit for outlet of gaseous mixture from the chamber, a chamber for cooling oxidised objects, which has a unit for flowing cooling inert gas medium in and out. The cooling chamber is joined to the oxidation chamber through a rotary valve, made with two hemispherical gates, which can open and close the opening in the rotary valve for joining or separating both chambers.
 Control method of level of top surface of slaggy phase and boundary of slaggy and metallic phase of melt in lift tube tank of iron-and-steel furnace by vanukov or romelt / 2368853
Invention relates to non-ferrous metallurgy field. According to method it is implemented voltage feeding to electroconductive refractory rods, used for slag heating and setting adjusting of current value. It is displaced rod and implemented continuous measurement and comparison of current value through rod with setting. At equality of measured value of current to setting value it is fixed top surface of slaggy or metallic phase of melt in tank of iron-and-steel furnace. In the capacity of electroconductive refractory rod it is used graphitic rod or electrode, used for electroarc heating of melt in tank of iron-and-steel furnace. After achievement of equality of current setting to corresponding measured current values it is checked equality to zero of the first current derivative.
 Plant for object survey under high temperatures / 2367934
Invention is related to testing of objects, comprising explosive and toxic substances, for various thermal effects. Plant comprises working chamber with loading window arranged with the possibility of its overlapping, the following components installed inside chamber - device for fixation of object and at least one fuel header with vortex nozzles, device for fuel supply, tube connected with its one end to fuel supply device, and with the other end - to header, ignition device, additionally, at least one tray installed under header, and at least one pair of additional devices for fuel supply and ignition, every of which is installed at a preset distance from working chamber and is connected accordingly by the first and second additional tubes to tray. On the second additional pipe, upstream ignition device, pipe cooling device is installed.
 Dehydration method of carnallite raw materials and device for its implementation / 2359911
Group of invention relates to non-ferrous metallurgy, particularly to method and device for preparation of carnallite raw materials to the process of electrolytic magnesium recieving. According to the method carnallite raw materials are loaded and dehydrated in the furnace by fuel gas, dehydrated carnallite is separated in dust cyclone from withdrawn gas and fed into the melting cyclone, where it is heated by fuel gas, received in burner by means of chlorine burning in natural gas, it is melted and heated up to the temperature 700-800°C. After overheating mixture of fuel gas and molten waterless carnallite is fed simultaneously in the melt collector, where gas is separated from the melt by means of collision with partition and fed into the furnace to dehydration stage, and waterless carnallite is discharged. Unit includes furnace with nozzles for loading of raw materials and gas mixture withdrawal with waterless carnallite, with nozzle for feeding of fuel gas, dust cyclone, connected to the furnace by gas pipe, melting cyclone, connected by pipeline to dust cyclone and melt pipe with melt collecto, outfitted by burner for burning of chlorine, collector of the melt with discharge nozzle for melt. It is also outfitted by gas flue, connecting melt collector with furnace and outfitted by device for gas feeding additionally melt collector is implemented in the form of tank with partition and outfitted by additional nozzle, connected to gas pipe.
 Assemble for reprocessing of powdered lead- and zinc-containing raw materials / 2359188
Invention relates to ferrous metallurgy, mainly to devices for reprocessing of powdered lead- and zinc-containing raw materials, in which there can be copper and precious metals. Aggregate for reprocessing of powdered lead- and zinc-containing raw materials contains rectangular upright smelting chamber with burner facility, gas cooler stack, partition with water-cooled copper elements, separating smelting chamber from gas cooler stack, electric furnace, separated from the smelting chamber by partition with water-cooled copper elements, coffer chord, facilities for discharge of smelting products, bottom, herewith correlation of difference of level of bottom edges to distance from the smelting chamber crown to bottom edge of partition, separating electric furnace from the smelting chamber, is 0.15-0.29, and relation of distance from bottom edge of this partition up to bottom to difference of level of bottom edges is 1.25-2.10. On walls of gas cooler stack of aggregate there are installed not more than two tuyers on the level of bottom edge of partition, separating gas cooler stack from smelting chamber, with inclination into the side of bottom on-the-mitre to horizontal plane, specified by formula α=arctg(k-ΔH/B), where α - angle of tuyers slope; k - coefficient of angle of tuyers slope, equal to 1.11-1.25; ΔH - difference of level of bottom edges of partitions; B - inside width of gas cooler stack. At mounting of two tuyers they are located by one on each of opposite side walls of gas cooler stack with reflector displacement relative to its cross-axial section. Additionally each of it is located at a distance of cross-axial section of gas cooler stack, relation of which to inside length of gas cooler stack is 0.25-0.30.
 Liquid-phase furnace for smelting materials containing ferrous and nonferrous metals / 2348881
Invention relates to metallurgy and, particularly, to the plants for continuous processing of oxidised nickel-containing ores, slag and dust. The liquid-phase furnace includes rectangular caisson-type well with lined walls being situated underneath. The well expands in the upper part. It is provided with top and bottom tuyeres. The well is separated into smelting and recovery chambers by a transverse partition. The chambers are interconnected through the window for smelt cross-flowing in the lower part of the transverse partition. The furnace also includes staggered or tilted hearth, slug discharge trap and electrodes being merged into the smelt. The electrodes are installed in slug release trap with their heat-generating ends being placed on the border of slug phase and metal phase separation in the trap. Besides, the trap volume is more than 10 times less than the recovery chamber volume.
 Furnace of magnesium continuous refinement / 2348715
Invention concerns devices for refinement of magnesium. Furnace of magnesium continuous refinement with salt heating includes lined cylindrical casing installed inside on supports alloying basket with central vertical channel, crown, introduced through side wall lower than alloying basket electrodes and bottom with bevels. At that distance from bottom till electrodes is 200-300 mm, and distance from electrodes till alloying basket is 1.0-2.0 of electrodes height. Electrodes are located symmetrical relative to vertical axes of furnace and relative to each other. In crown above electrodes there are implemented manholes with covers. Supports of alloying basket bear on electro- insulating supports or gaskets, and top edge of electrodes is implemented as bevel. Diameter of bottom horizontal part is 0.5-0.95 of distance between diametrical electrodes.
 Method of treatment hard gold-arsenical ores and concentrates and furnace for its implementation / 2348713
Invention concerns treatment of hard gold-arsenic ores. Particularly it concerns antimonous sulphide ores and concentrates. Method includes without oxidising melting in smelting chamber with receiving of matte and slag melts and treatment of melting products by metallic phase. At that without oxidising melting is implemented continuously in circulating melted slag with out of melting products into settling chamber to interphase boundary slag - matte. Before melting circulating melted slag is separated from operating gases. For circulating it is used maximum separated from matte slag. Treatment of matte by metallic phase is implemented in continuous operation. Furnace for processing of hard gold -arsenic ores and concentrates includes smelting chamber. Furthermore, it is outfitted by recycling contour, containing of gas-lift unit with tuyeres and descending and ascending channels of melted slag, gas separating and settling chambers. Gas separating chamber is communicated with smelting chamber through bleed blowhole by means of channel for separation of working gas of gas-lift unit and gas separating chamber from circulating melted slag. Smelting chamber immersed into settling chamber to interphase boundary slag - matte. Settling chamber contains gas flue for withdrawal of sublimates and low blowing melting products.
 Furnace for continuous melting of sulphide materials in molten pool / 2347994
Invention refers to metallurgy, particularly to devices for continuous processing of sulphide ores and concentrates containing copper and/or nickel. The furnace consists of a caisson stack with tuyeres, of a facility for charge loading, of two transverse partitions not reaching a bottom thus forming overflow ports for melt; the said partitions divide the stack into a melting chamber, a reduction chamber and a chamber of settling; the furnace also consists of a device for tapping of molten products and of individual facilities for gas exhaust from the melting and reduction chambers. The partition dividing the melting and reduction chambers pressure tight separates gas space between the chambers. The upper edge of the overflow port into the settling chamber is located above the upper edge of the overflow port between the melting and reduction chambers, while the devices for tapping molten products from the furnace are arranged from the side of the settling chamber.
 Vanyukov furnace for melting materials containing non-ferrous and ferrous metals / 2336478
Invention relates to metallurgy branch and particularly to oxidized nickel ore processing to matte or ferronickel. Vanyukov furnace contains coffered well, which is rectangular at bottom and expanding in top part and separated by cross wall into melting and reduction chambers, staggered or tilted hearth, siphon with openings for sludge and metal containing phase discharge. Tuyeres are displaced along periphery of well walls. Chambers contact between each other through the window for melt flowing in low part of cross wall. Furnace is provided with tuyere adjusting melt flow volume through window for melt flow and its heating. It is located under the level of the said tuyeres by 5-8 diameters of their aperture. Rectangular walls of melting and reduction chambers of furnace are lined and conjugated along the whole height of cross wall through temperature compensated vertical clearances closed by coffered part of well walls from one side and by cross wall end from the other side. Cross wall is made high-refractory. Invention ensures increase of operation duration or reliable operation due to exclusion of crust formation in melt flow window from one chamber to another and avoidance of lining damage in rectangular part of furnace well and reduction of coolants flow rate.
 Restoration mixture for melting of ferrosilicon / 2380440
Restoration mixture consists of coke nut, cannel coal of grade D with yield of volatiles more than 40% porosity more than 15% and with increased filtering property, and wood chips in the capacity of ripper in following mass ratio of components, % (by carbon): cannel coal of grade D 25-55, wood chips 5-7, coke nut is the rest.
 Tank-casting mould of installation for receiving of ferrotitanium by means of electroarc melting of rutile under layer of protective flux / 2377325
Invention relates to metallurgy field, particularly to structure of tank- casting mould of electroslag installation for receiving of ferrotitanium. Tank- casting mould contains metallic square casing, in the basis of which it is hermetically installed stationary current-carrying electrode, between main, side walls and fixed current-carrying electrode there are installed plates, which formes fireproof brickwork of tank- casting mould and implemented as graphitic, herewith part of graphitic plates at side steel walls is held by means of top holding brackets and bottom holding brackets, and fireproof products, which are located under mentioned plates, are manufactured from chamotte, and to four side steel walls there are rigidly fixed four horizontally installed rotary loops, which provide lowering of side steel walls into horizontal position for free unloading of ferrotitanium in solid condition lengthwise side steel walls.
 Method of combined processing of oxided and carbonate ferromanganese ores / 2374350
Invention relates to the ferrous metallurgy field, particularly to manufacturing of ferroalloys, particularly to creation of methods of combined processing of oxided and carbonate ferromanganese ores with receiving of manganese ferroalloys. Method includes separate preliminary enrichment of mentioned ores with receiving of oxide and carbonate concentrates, fractionating, separation of large and agglomerating of undersize particles, smelting from them low-phosphorus dross (LPD), received from carbonate concentrates, and low-phosphorus dross (LPD), received from oxide concentrate, usage of the latter at smelting of carbonaceous ferro- and silicon manganese, herewith smelting of carbonaceous ferromanganese is implemented by flux-free process with usage in the capacity of crude ore of carbonate concentrates and low-phosphorus dross (LPD) with receiving of charge manganese slag, and melting of silicon manganese is implemented from charge, consisting of charge manganese slag from smelting of carbonaceous ferromanganese, low-phosphorus dross (LPD), quartzite and carbonaceous reducer.
 Method of smelting of vanadium-bearing alloys / 2374349
Invention relates to the ferrous metallurgy field, particularly to manufacturing of ferroalloys, particularly to creation of methods of smelting of vanadium-bearing alloys by out-furnace aluminothermal process from vanadium slags. In method it is implemented preparation of charge containing vanadium-bearing component and aluminium, partial or total its loading into melting hearth, ignition of charge, reduction of charge oxides by aluminium, isolation of melts, discharge of slag and cooling of vanadium-bearing alloy. In the capacity of vanadium-bearing component it is used converter vanadium slag, at preparation into content of charge it is introduced mixture of lime and magnesite in amount 5-20% of weight of introduced aluminium at keeping in it ratio of calcium oxide to magnesium oxide in the range 1:(1-0.5), herewith all charge before loading into melting hearth is heated up to temperature 200-550°C.
 Reprocessing method of manganous waste slags / 2374336
Invention relates to the ferrous metallurgy field, particularly to reprocessing of waste slags from manufacturing of manganese and siliceous ferroalloys for extraction from it of manganese and siliceous ferroalloys of high grade by content of phosphorus. In method there are mixed manganous waste slags and slag from manufacturing of ferrosilicon and is implemented reduction of oxides of manganese and silicon carbide, presenting in slag from manufacturing of ferrosilicon, herewith amount of silicon carbide in mixture of slags for 10-50% more than it is required by stoichiometry for total reduction of manganous oxide.
Method of receiving of vanadium-bearing alloys and ligatures / 2368689
In method in the capacity of charge it is used vanadium-bearing wastes and lime, herewith in oxidising area it is implemented separation of metal from vanadium-bearing melted slag with periodic or continuous discharge of it from furnace. It is implemented reduction of vanadium oxides from melted slag in reducing zone by introduction into melt of silicon-bearing alloy with acceptable content of aluminium 2-15%, taken in amount for 2-50% more than stoichiometrically necessary for reduction vanadium oxides.
 Multi-component reducing mixture for melting of ferrosilicium / 2366740
Invention refers to iron and steel industry, particularly to production of ferroalloys by carbothermic reduction. Reducing mixture contains coke nut, brown coal of B grade with the lower heat of working fuel combustion equal to 3200 kcal/kg and working moisture contents up to 40 %; as loosening substance the reducing mixture contains cannel coal and wood chips at following ratio, % (for carbon): cannel coal 25-50, brown coal of B grade 14-20, wood chips 2-5, coke nut - the rest.
Charge mixture for production of ferroniobium by way of electroslag remelting / 2364651
Invention relates to metallurgy immediately dealing with electroslag remelting. The charge mixture contains the following components (wt %): wastes of production of pure niobium 62.0-70.0 containing niobium intermetallide (NbAI3) - 40.0-45.0%; iron scale - 20.0-28.0%; a slag-forming constituent - 1.0-6.0%; alabaster - 1.0-12.0%. The pure niobium production wastes contain the following components (wt %): niobium intermetallide - 40.0-45.0%; metallic niobium - 10.0-20.0%; alumina - 5.0-25.0%; impurities - balance.
High-strength nonmagmetic composition steel / 2360029
Invention relates to metallurgy field, particularly to composition of high-strength non-magnetic corrosion-resistant composition steel, used in mechanical engineering, aircraft building, special shipbuilding, instrument making and at creation of high-performance drilling engineering. Steel contains carbon, silicon, manganese, chrome, nickel, nitrogen, niobium, molybdenum, vanadium, zirconium nitride, iron and unavoidable admixtures at following ratio of components, wt %: carbon 0.04 - 0.12, silicon 0.10 - 0.60, manganese 5.0 - 12.0, chrome 19.0 - 21.0, nickel 4.0 - 9.0, molybdenum 0.5 - 1.5, vanadium 0.10 - 0.55, niobium 0.03 - 0.30, nitrogen 0.4 - 0.7, zirconium nitride 0.03 - 1.00, iron and unavoidable admixtures are the rest. Zirconium nitride is in the form of particles with nano-dispersibility.
Method of receiving of chrome-bearing alloy / 2354735
Invention can be used for processing of chrome ore, concentrates and aluminium-bearing wastes of non-ferrous metallurgy. In the method in the capacity of aluminium-bearing material it is used preprepared aluminium-bearing wastes from manufacturing of secondary aluminium in amount 0.6-1.1 wt % per 1 wt % of content Cr2O3 in chrome-ore concentrate. Isolation of received in furnace melt is implemented with blending during 10-15 minutes, after which it is preliminary pumped out in slag pan 70-90% of dross major part from the total dross mass, then it is pumped out part of the rest slag into metallic reservoir, isolated during 3-5 minutes and discharged the rest part and metal to the same metallic reservoir.
 Method of regeneration of metallic chromium from slags containing chromium oxide / 2247161
Proposed method is used for converter processes such as AOD, MRP, AOD-L, MRP-L, CLU, ASM, Conars-Stainless steel, or vacuum processes such as VOD, SS-VOD, RH and RH with use of oxygen lance. Slag formed at the end of blowing and treatment in converter or vacuum plant is drained and removed in unreduced state; this slag is fed to electric furnace which is loaded with standard charge consisting of metal scrap and residual dust; then carbon is additionally fed and silicon if necessary; during melting, chromium oxide contained is slag is reduced by means of carbon and silicon.
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FIELD: metallurgy. SUBSTANCE: in arch of siphon there are implemented openings or windows for loading of carbon-bearing materials, partition with bottom window or windows for flow of melted slag into siphon is implemented in the form of common end wall for liquid-phase smelting shaft and siphon with electrode(s) and allows window or windows for fume extraction from under arch of siphon, located on level not higher than horizontal axis of top row of tuyeres of liquid-phase smelting shaft, siphon is outfitted by solid transverse partition, installed in its bottom part parallel to common end wall for liquid-phase smelting shaft and siphon at a distance enough for flow of required volume of slag melt from liquid-phase smelting shaft on surface of heated layer of carbon-bearing material, herewith solid transverse partition fully separates siphon from liquid-phase smelting shaft, and its top edge is located higher than horizontal axis of bottom row of tuyeres of liquid-phase smelting shaft. EFFECT: invention provides decreasing of structure dimensions, utilising of all heat of effluent gas from siphon, decreasing of emissions amount of dioxide from siphon into environment. 1 dwg
The present invention relates to the production of high-quality manganese ferroalloys from poor concentrates (as, for example, ores, slag dump, sludge and dusts), and may also find its application for betaxolol poor processing of manganese ores and concentrates, as well as industrial wastes metallurgy (BOF dusts, oil sludge, nodules sea shelf etc). Traditionally all over the world, for example, poor mn containing ores and industrial wastes on ferromanganese sequentially processed in a reverberatory furnace (design widely known in the art), then the slag is placed in an electric furnace, lined with carbon blocks (patent Australia CL No. 254219, 15.4 and RJ metallurgy, 1967, No. 3), which lead smelting reduction plants. A disadvantage of the known equipment: - the need to use three of furnaces, each of which maintained a certain temperature; - high energy consumption due to heat loss during transportation melts and significant total area of the heat transfer surfaces of furnaces; - low end-to-end use of manganese; large emissions of harmful substances (dusts, dioxins, etc. in the environment. Known the kiln for smelting of manganese ferroalloys, CA is Amy in metallurgy duplex oven. For example, in A.S. 1038366 (MKI: SS 5/52, publ. 30.08.83,, bull. No. 32) described sequential circuit: download poor mn containing materials in the first furnace, and then overload smelting products in the following furnace and subsequent melting. Because of the wide popularity of the design of electric furnaces, their description will not be repeated here. The disadvantage of this technical solution: - high power (up to 1000 kWh of electricity per tonne of pig manganese slag); - increased loss of manganese associated with the metal (20%); - low demand received associated metal; - low degree of extraction of manganese from blast furnace slag in ferromanganese; - high ratio of slag. A common shortcoming of both known of furnaces is the fact that these units are able to operate satisfactorily (from the point of view of technical and economic indicators) only if the preliminary batch preparation (drying, sintering, briquetting, pelleting, etc.); when precise coordination boot time, stay and discharge for each unit of the duplex process; the inclusion in the scheme of a complex system of gas-cleaning installations (because the process is associated with significant emissions of fine materials and dioxins in the environment). Known furnace AG is egati for duplex processes, as, for example, for processing of fine oxidized poor Nickel ores. In these units eliminated the above-mentioned disadvantages, including the shortcomings of the above known duplex furnaces. The most advanced unit described in the patent of the Russian Federation No. 234888 on application No. 2006109262 from 24.03.2006, (authors Salikhov SG, Schetinin A.P., Ismestiev E.N.) "Vanyukov Furnace for the smelting of materials containing non-ferrous and ferrous metals". This technical solution adopted for the prototype of the claimed invention as the most similar in purpose and achieve positive technical results. The prototype essentially consists of serial connected or connecting two furnace units: Vanyukov furnace and electric arc furnace, minor design changes which may be required depending on the purpose of this type of duplex furnace and achieved positive results. Vanyukov furnace prototype contains: - liquid melting mine with caisson zones with upper and lower rows of tuyeres; - pipes for loading of the charge and discharge of the flue gases at the roof and holes for drainage of liquid metal; - inclined or stepped furnace hearth; - wall with the bottom window or Windows for flow of the slag melt in the ladle; - on the set of siphon fitted the h(s) electrode(s) can move; channel(s) for release of the slag and metal components of the melt from the bottom of the siphon. The disadvantages of the prototype are: - large total surface area of the unit and the associated heat loss (sizes restorative camera is comparable or even larger than the melting chamber); insufficient utilization of heat of oxidation gases, released during the operation of the siphon in the mode of an electric arc furnace (for modifying the viscosity of the slag on the border of the separation of metal and slag); - a significant number of outliers (dioxide) from the siphon into the environment; - needs carbonaceous material (coke or coal) upon receipt of pig manganese slag or ferromanganese; - a large amount of unclaimed synthetic iron or requiring further processing obtained in the first stage of smelting of manganese ferroalloys. The purpose of the invention: the creation of a kiln - duplex furnace for smelting of manganese ferroalloys from ferromanganese ores, concentrates and industrial waste metallurgy. A set of new signs of significant improvement of the prototype gives a positive effect : eliminates the disadvantages of furnaces for smelting of manganese ferroalloys. The proposed duplex furnace issue is where it is refuelled manganese alloys contains liquid melting mine with caisson zones with upper and lower rows of tuyeres and with holes for exhaust gas discharge and loading of the charge and discharge of liquid metal, inclined or stepped furnace hearth, wall with the bottom window or Windows to release the slag melt in the ladle, in the firmament which set(s) electrode(s) to control the temperature of the melt, and the channel(s) for release of the slag and metal components of the melt from the bottom. In her role end walls melting mine and siphon performs the partition wall, the upper edge of which rests on the arch of the melting shaft, and the lower on the furnace hearth, arch siphon, through the window(a) partitions made(data) for exhaust gases from under its arch, below the horizontal axis of the upper row of tuyeres liquid-phase melting shaft provided with a melting mine and contains sockets for download carbonaceous material (coke, coal and so on) in the combustion zone of the arc electrode(s), and in the lower part of the siphon is installed solid partition wall, the upper edge which ends above the horizontal axis of the bottom row of tuyeres, and the bottom edge rests on the furnace hearth siphon. Parallel mounted solid partition wall and a transverse partition with a Windows form a channel for flow of the melt from the melting zone to the surface layer of carbonaceous reductant in the siphon. In addition, the duplex furnace for smelting of manganese alloys, the arch of her siphon through the window of a partition, which plays a role and a common end wall between p the operation of the mine and the siphon with the electrode(s), communicated with melting mine below the horizontal axis of the upper row of tuyeres, for example, 8-12 size of the mouth of the tuyere. To confirm achieve the goal of obtaining a positive technical effects and evidence of the materiality of the distinctive features will present a description of the work proposed construction of the duplex furnaces in the smelting of manganese alloys from poor ores and industrial wastes. Duplex furnace for smelting of manganese alloys of iron-manganese ores and concentrates and industrial waste metallurgy includes (see drawing): caisson liquid-phase melting pit - 1 and case - 2 (the case is not mentioned); tuyere bottom row - 3; lance top row - 4; REDD - 6 nozzles 7 to load the batch processing and the nozzles 8 for venting flue gases at the roof and the pipe 9 to drain the liquid metal, the furnace hearth - 10 (flat, inclined, stepped, or other form), siphon - 11 installed(and) his arch electrode(s) 12 for regulating the temperature of the melt and TV - 14 for the release of the slag and the metal component of the melt, the transverse wall 13, the upper edge of which rests on the arch 6 melting of mine - 1, and the lower on the furnace hearth - 10; set of siphon - 14 with holes for feeding carbonaceous coal or coke (not indicated)as of the end wall of the housing 2, plevel the Oh mine 1 and siphon 11 used partition 13, with the bottom(s) of the window or window - 15 and the window 16 for venting flue gases from under the arch of the siphon 11 in the lower zone of the upper row of tuyeres 4; end wall of the siphon 11 made in the form of a continuous transverse partition 17, the upper edge of which ends above the horizontal axis of the lower belt of the number of tuyeres 3, and the partition wall 17 is parallel to the transverse partition 13 with Windows 15 at a distance sufficient to overflow the total volume flow of the melt from the melting shaft 1 through the window 15 and the upper edge of the partition 17 to the surface layer of carbonaceous material in the siphon 11. Works duplex oven as follows. Duplex oven heated to a certain temperature for a predetermined time schedule. Then load the molten slag (open hearth, blast or other easily fusible slag) caisson liquid-phase melting shaft 1 to set the level to the bottom row of tuyeres 3. After a warm-up set 6 through the pipe 7 gradually begin to load the mixture and coal, and oxygen-the air-gas mixture supplied through the bottom row of tuyeres 3 and starting the burner (not shown) creates a bubbling fluidised bed liquid-phase environment in the whole volume of the melting shaft 1. As ferromanganese raw materials (tailings and other), nefrackzionirovannam coal, flux (to provide the required melt viscosity) of the act is UPE mix, the heat from the combustion of coal (and methane) is spent on heating and melting of the charge, and products of incomplete combustion - carbon monoxide (CO) and H2used as reducing oxides, thermodynamic strength of which is lower than the oxide of manganese, i.e., those that can be restored with the help of carbon monoxide. The oxides of manganese in these conditions are not restored. Reduced iron and phosphorus are deposited on the furnace hearth furnace 10 and this alloy, high demand of metallurgists (90% Fe, 0.5 to 3.0% of Mn; 0.3 to 0.5% Si; 3,5-4,0%; 2,5-4,0% P) continuously emerges from the nozzle 9 of the melting shaft 1. Slag, freed from impurities (iron, phosphorus, non-ferrous metals) and containing mainly manganese oxides and iron oxides, whose thermodynamic strength higher than that of manganese oxide (oxides of silicon, calcium, magnesium, aluminum, barium and others), through the bottom(s) window(Windows) 15 transverse partitions 13 and the upper edge of the continuous partitions 17 continuously flows to the heated layer of carbon-containing reductant formed by downloading it through the boot nozzles 11 in the firmament of the siphon 11. Passing through the carbon-containing layer, the oxides of manganese and silicon are restored to varying degrees, depending on the desired range of ferrous alloys (carbon ferromanganese or silicomanganese), which is determined by temperature, layer thickness and the OS is ofmostly end of the slag in the siphon 11 (these options are supported by high-precision automation system - not shown). These products are produced from melting furnaces simultaneously and separately. By loading the mixture into the volume of the melting shaft 1, filled with fine "particles" of the melt, and "heap" (in the form of a dense flow) the flow of the mixture, followed by immersion in the melt in the absence of high velocity exhaust gases in Natsukawa space does not create conditions for the removal of dust from the liquid phase melting mine. This is confirmed by the practice of furnaces: liquid melting in the processing of fine materials reduces the removal of dust up to 30 times compared to mine, blast or reverberatory furnace(AMI). Because the downloadable mn containing the mixture is first immersed in a layer of molten slag, wetted, then the lances of the bottom row is discharged into the upper zone of the melting shaft 1, the reaction of reduction of iron is many times more intense than in other known furnace units, and the Department of CO and H2from the recovery process occurs in the upper zone of the mine and burnt by the lances of the top row of tuyeres. The heat released during the oxidation of CO and H2coming in contact with minute particles of metal and slag is returned back to the liquid-phase bubbling fluidised bed layer. The resulting melt restored oxides in the siphon 1 is output from the nozzle (hole 14) siphon. The composition of this product melting: 70-75% Mn, 17-20% Si, 1.5 to 2.5% C, 0.1 to 0.3% of P, and the rest Fe. Eye-catching when you receive this product gases WITH continuously discharged through the window(s) 16 in the partition 13 and burn to CO2(i.e. disappears especially dangerous for ecology dioxide), and heat (approximately 30% of the heat of the melting zone of the furnace (this value can reduce the flow of heat transfer in the melting zone of the furnace, thus the total extent of the septum 13 is reduced to 1/4 the area of the vertical parts of the furnace and, consequently, on the same reduced heat loss to the environment) is passed to liquid-phase bubbling fluidised bed layer. Thus, the set of new elements and their location can increase the extraction of Fe by 30-35%, manganese up to 15-25% and simultaneously utilize the heat of exhaust gases back into the processes of the duplex furnace, which reduces the energy consumption by 15-25%, and also allows you to get rid of, almost entirely from particularly harmful dioxins. The proposed device duplex oven to implement the method of production of ferromanganese or silicomanganese can successfully be applied to produce other types of ferroalloys from poor ores, ferro-manganese concentrate and scrap of ferrous metals, without the use of coke and without preliminary preparation of raw materials processed with the loss of a valuable component of the s by 20-40% at this stage. Duplex furnace for smelting of manganese alloys of iron-manganese ores and concentrates and industrial waste metallurgy containing liquid-phase melting mine with caisson zones with upper and lower rows of lances, nozzles for download of the charge and discharge of the flue gases on the roof and a hole for drainage of liquid metal, sloping or stepped furnace hearth, wall with the bottom window or Windows for flow of the slag melt in the ladle, in the firmament which set(s) electrode(s) to control the temperature of the melt and the channel(s) for release of the slag and metal components of the melt from the bottom of the siphon, characterized in that the set of siphon holes or window to load the carbonaceous materials, the partition with the bottom window or Windows for flow of the slag melt in the ladle made in the form of a common end wall for liquid-phase melting mine and siphon with the electrode(s) and has a window or Windows to exhaust gases from under the arch of the siphon, set(s) at a level not above the horizontal axis of the upper row of tuyeres liquid-phase melting of the mine, the siphon is provided with a continuous transverse partition, installed in the lower part thereof in parallel with a common end wall for liquid-phase melting mine and siphon at a distance sufficient to overflow the necessary volume of the mA molten slag from liquid-phase melting of the mine on the surface of the heated layer of carbon-containing material, when this solid transverse wall completely separates the siphon from the liquid phase melting of mine, and its upper edge is located above the horizontal axis of the bottom row of tuyeres liquid-phase melting mine.
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