MXPA97009681A - Combustible blower lap for deoxygen blower / combusti burner - Google Patents

Abstract

The present invention relates to a metallurgical lance assembly comprising: a straight lance body having a first end and a second end, a frame fixed on said first end of said lance body, and a spear tip attached to said lance body. second end of said spear body, said spear tip includes an oxygen injection nozzle for injecting oxygen into a metallurgical furnace vessel and at least one nozzle in a metallurgical furnace vessel and at least one carbonaceous material injection nozzle for injecting carbonaceous material into said metallurgical furnace vessel, said oxygen injection nozzle cooperates with said at least one carbonaceous material injection nozzle to define a burner assembly from which a combined flow of oxygen and carbonaceous material can be discharged and ignited To produce a flame, said spearhead also includes an oxygen injection nozzle. discrete ional of said burner assembly and extending in a diverging outward direction from a central axis of said body

Description

COMBINED COMBINED OX BLOWER LAUNCH ASSEMBLY 1GEN / FUEL BURNER FIELD OF THE INVENTION The present invention relates generally to metallurgical systems and methods and, more specifically, to a combined combustion engine or fuel burner assembly. For its use in high-temperature electric furnaces - BACKGROUND OF THE INVENTION In the metallurgical technique it has been used for a long time assemblies of oxygen spears to increase the production capacity of electric or electric furnaces. , "electric ovens" by introducing high speed oxygen directly against the melted bath - the nozzle structure of said lander assembly. * frequently includes an oxygen nozzle and a nozzle to introduce a flow of solid material into fine grains in the form of a metallurgical agent, such as, for example, carbon, lime, and / or other metallurgical agents in many ways, to improve the ad? c) the metallic process according to the desired results - When trying to improve the design of an electric furnace, one goal is to cause a volume increase of the slag that normally forms on the surface of the bath. melted steel. A high volume of slag increases the thermal efficiency of the electric furnace to the extent that the e to i chrome works an ai lante layer that conserves the bath temperature. In addition, the slag combines with the impurities and removes them from the bathroom. For these reasons, it is desirable to provide a lance assembly that can supply or; and carbon or other solids in fine grains to increase the volume of the slag and to achieve beneficial thermal and chemical reactions to increase the production capacity. Oxygen blower lances have been used in relationship ofi? Are the electric furnaces of the electric furnace both to perform their primary function of ref i na i n / desc b? The metal bath can be used to provide an additional source of energy in order to increase the "cutting" or melting of the scrap load by the electrodes of the container. When a conventional straight-body oxygen-blower lance is employed in an electric-furnace metallurgical vessel, the lance is inserted through a lance opening provided in the sidewall of the vessel. Typically, the lance is inclined and the angle of insertion of the lance is located in a range of 20 to 40"in relation to a horizontal line In operation, oxygen is injected from the lance immediately afterwards. that the container has received the first scrap bucket caga and after the opening of the bucket has been scrapped clean. Even though oxygen incineration against cold scrap produces little or no thermochemical reaction between the flow of oxygen and scrap, it often results in secondary combustion in the roof and duct areas of the furnace. therefore causes excessive exhaust temperatures and a decreased service life of the container components at these sites. After the aga with the second and third ladle of scrap, however, e, < a sufficient latent heat inside the container to provide ignition temperatures within the scrap mass. However, the scrapping of the scrap using an oxygenate blower spear, conventional as a power source, will remain low and inefficient. To complement the preheating and scrapping effect of the oxygen spear in an electric furnace, it has been proposed to insert one or more oxygen / fuel burner assemblies, together with the lance, into the metallurgical vessel. However, the arrangement requires an operation through an open slag removal door. Therefore, the preheat / cut area of scrap is limited and air entrainment occurs within the container which negatively affects the production of steel grades with ba or nitrogen content.

U.S. Patent No. 4,653,730 discloses a system incorporating a fuel burner in an oxygen blower lance. The lance has an arc-shaped design and is inserted through a spear opening in the side wall of the furnace. Due to its arc shape, the lance travels in an arc-shaped path, thus limiting the distance at which the lance can be inserted into the furnace from the side wall of the furnace at a considerably shorter distance than the furnace. radius cié curve of the spear and can not reach the central regions of the container. Accordingly, the operating area of the lance is limited to an area close to the side wall of the. oven container. This localized operating area can result in overflow of the slag and erosion of the side wall of the furnace in the vicinity of the lance. In addition, to achieve a relevant distribution of the energy provided by the lance in the slag load, US Patent No. 4,653,730 suggests the placement of a plurality of said lances (for example three) around the circumference of the furnace container, mul thus iplicando the costs of acquisition operation related to the .. use of the spear. U.S. Patent Nos. 3,620,455, 3,823,929, Re. 28,769, 3,827,632, 3,912,243 and 4,047,936 describe a spear apparatus that includes straight body spears that They have a combined capacity of burner1 and fuel and oxygen blower. These assemblies are generally effective for their indicated functions. However, none of these lances can be operated to provide, in addition to the functions of oxygen blower and filter melt, the selective introduction of metallic agents, for example, to particulate > In order to increase the effectiveness of the refining process and the final quality of the steel products, US Pat. No. 4,083,540 provides an oxygen burner / combustion spear assembly without the ability to supply metallurgical agents. During the refining, US Patent No. 4,434,005 describes a metallurgical lance having carbon and post-combustion functions but without the capacity of an ibm bus burner.There is an advantage, therefore, in relation to a combined assembly. Oxygen Blower Launcher / Fuel Burner that can provide the benefits of prec-1 rd and fast and generalized cutting of slag charge inside an electric furnace while avoiding the costs associated with multiple lances and the potential damage that can be caused by scrap and the container in the vicinity of the side wall of the container, there is an additional advantage for such assembly of lan which can also introduce, in selected numbers, a a metallurgical, such as for example arbono in fine grains or similar, μ.i's promote the formation of e- < and the chemical qualities of end point l desire them in the melted bath. ??? MPFN? OR FROM THE INVENTION. To present in ^ > It offers a spear of the blower blower, which can be used to produce, in or on scissions, the flow of oxygen and / or mater. (eg, ombus' íble • arbonov-o, such as for example carbon in sfi nn), or a hydrocarbon gas (eg, natural gas and the like), in a river of liot tto el éc ri co. The spear assembly includes a frame port, a frame, and a blade that is mounted on the frame. Jón de bs st. i m un s und i-, tremo > pd c > a io on a laura tip. The easy-to-use system is designed to be installed in an aperture of 1 dri on the side panel of the oven (with, for example, a filter from h rn. electric) at an acute angle at the intersection or at the horizontal line, the portion of the frame can be fixed to a size of 1 meter and has an insertion equipment and includes separate entrances adapted. for respective connections "t a source of nia '^ ru] of fuel cart"> noso- a source ci igeno and a "source of the refrigerant liquid reincculante with or for example water. frame portion * further includes a coolant fluid outlet to return the cooling fluid from or encourages the lance to the source of reflectant fluid. The spearhead includes a nozzle structure that has an originating element of orientation that deviates toward the angle to an angle in relation to the other. nn the axis (in ral of the body of 1-, nza.! nozzle structure compt > -where 3 more of the oppo nity of the o ffi cial e ffi cation and ubiquitous vou- * \ '&your initiate a flux of carbonaceous ombu-iible from the lan-t-uto the en._- mble, the spear works in its burning mode. that of the spear includes a conduit Mib ii '.similar to c ortcentr i • "s that form a plurality of passages to supply, -> trr fluid from 1 ^. From a spear, a passage is fluidly connected to the carbonaceous fuel inlet to the orifice disposition of the carbonaceous butane, or passage fluently connects the inlet to the inlet. the orifice and discharge of oxygen, and another passage defines the chamber, the entrance, and the fluid and fluid connection to the fluid outlet r frigerently in order to facilitate the flow of water. flow of fluid or cooling through the in.-. Launches during the operation. In accordance with a conventionally preferred embodiment, the lance frame includes an adapted additional input for the connection, through appropriate equipment and valves, to the same oxygen source as above or to a different source of oxygen, and the tip nozzle structure The spear includes an additional discharge orifice. The spear assembly, at its v z, includes an > An additional wave that d finishes a passage of additional oxygen flow isolated from the passages previously mentioned for a common action f Ini ia en e la rada ció oxygen ad¡ > , oua 1 and an additional oxygen salt test. Fl di posi ti or carbonaceous fuel discharge hole be > oloca also from μreferen > the one from ner to sii t -t nc i to the mind coaxial with the e e ce l of the spear body > n the object of pr by ion a carbon fuel flow that cooperates with c > n flow of oxygen pro vero in t of the additional oxygen hole in z of the flow coming from the op fi > The one of the grid of divergent diverging towards outside. As such, the additional oxygen discharging function and the discharging orifice of the combustible oxide outlet produce a burn-in assembly, co-axially on the central axis! of the spear body. When - > U.Í flows - ooper t c os of oxygen and combu-_ > If the charcoal is ignited, the flame of the burner is set in this way. It is a focused flame that co-operates precariously and on the basis of scrap contained within the glow screen. When the scrap If the electric furnace electrode co-operates with the burner, the o flows can be suspended. The oxygen and combustible carbonaceous material with the purpose of extinguishing the burner flame *, and the flow of oxygen through the orifice of exit of added oxygen can be recycled at a low flow velocity. ida μ ..? t finish the pre. Slowly. or 'case u? _ -.ario). During and / or after the oμei ae > In the burner, you can < "» Snmim -follow a flow, or as necessary, as of the operation op eration, < ve agency, and, after i < -.t 1 * combustion and after quenching the fl ow of quem dijr, s can operate both of the oxygen release to inject fluxes -super gas ns 5 o * lgen >:: >To re fi ne the use of the "zero" bath, the source of moisture can be a supply of natural gas or, for example, natural gas and / or gas. substance in pai ticles with, for example, a fall in fi ne grains suspended "within a gas flow or by depletion". In such a way that the source is provided in part by the deviation source of people, the carbon in par tic ul is supplied to the device. i fi d of burning coal, and no flow was supplied from oxygen from * the discharge orifice. The oxygen addition l. When this is done, the oxygen is supplied at > ~ slag apa from the divergent oxygen discharge orifice to a veil »: i ciad > He supersonic flow with a sufficient penetration force to form a pattern »ie n s superf i cía le .-. Y P ÍO emul s f i cad > - > .je e.? I'II, Hl pat rón Cie waves impact íesulta 'iel Oj íand' .no e r h o o t r .. i f i * at falls i n t e r ture in the no and homo >aunt? jene? . to the material t i i o * The xc so of the progenitor o ne of 3 depression formed in the area of penetration ». In the case of a child, it is extended to > - omb 1 na r ae i n the injected coal and ím nmr on .- 1 the »> 1e > "-rbono ctesp > es dioxidci.Je carbon." The condition of "formation? foams "> Jt- the esco i together with the area", chemical chemistry in the »-) in e: -» that and the carb does not increase the electric ef1teric 1a between the elements of the electric furnace » :: and the baths of melted cwa, in addition, the mass' J slag and the chemical action of oxygen and c: arbon »") work with the impurities in the bath > "> and ensure the capture of the silicon oxide, phosphorus, and if necessary to obtain a purer steel product The design of the spear assembly The present invention achieves a slow preheat and cut »Highly effective scrap due to the fact that oxygen and carbonaceous fuel are injected with precision in a centile to a furnace during the uf.o. By '' ousigu lens, an assembly is re-of lance body oporciona "" to uni- or co works or a plurality of assemblies and combined lances "Je blower * oxygen / fuel burner * Construction of arcuate In addition, the ability of the lance assembly of the present invention to insert itself deeply into the central regions of the container means that the heat generated can be increased by locating the hatai blade at a time. it avoids the potential for uplift and damage to the furnace's lateral network that can occur when the spearhead is limited to riperac in ls cer * canía »: the side of the container. more, when the lance assembly of the invention is used, it launches a fine, ion that injects carbon in 1 cul? --- or oxygen, the bond and the o; are introduced in the ^ ^ a cent i a 1 »liorno > jn the most reactive zon-a of the steel bath and near the delta of the electrodes in order to ensure an efficiency greater than 1 h r * n > . "> e1 Ec tri >.. Other details, O jects and advantages of the present -nven ion will apa entities i from the following IPCI desc n of the presently preferred embodiments and methods tualmente prefer d '3s pa? a 1 out of the present invention, BPrVF DESCRIPTION OF IO DRAWINGS The invention will be more readily apparent based on the following description of preferred modalities * presented =. > ">] ment with title > -Example, in the anecdine drawings, where s the figure t is a view in elevation, in partial cross-section, of a preferred embodiment of the combined assembly of sopl dot spears. > > x í'jeno / that adnr > ie pr sente fuel inven ion; the f191.ua is a schematic view > ie one ELERT homo icu r generated SENL 1 nenl and a support lan c nd ne uu .onal and insertion can be used to peanut ula the comb assembly 1 swim "Je lance -.oplador o, - ígepo / ttn that co AdoR t ible > like the pr'esente? invention, and Fig. 7 is a view of the lance assembly of Fig. 1 substan- tially to the mind inserted inside the furnace. DETAILED DESCRIPTION DF THE INVENTION Referring to Figure 1, a preferred embodiment of the combined oxygen blower / fuel burner assembly of the present invention is illustrated. , generally designated by reference numeral 10. F.3 lance assembly JO includes a hollow metal pole 12 the straight gand mounted on a first end, or paddle thereof on a frame assembly 14 for the purpose of in mu i aci n fluid > r > ~ .n \ el. The body 12 of lances * further comprises a tip > : ie throw 12 monta > ia properly on the free end of the body 12 opposite the frame assembly 14. The assembly > ie frame 14 includes a plural row "d -Je r-ecc modular sluice-sustau ions". ial mind identical 1S,? < ">, 22 and 24. Each of the bastion sections may include a section of metallic tubing that has a pair of annular plates assembled by welding each extrusion. the plates annul =. form reboi de., which are radially ring-shaped, where it is necessary to fix several originally orbital bolts, 3] and the sec 1 ions of tube with the object > to facilitate the connection of the 5-frame sections between the lugs by means of fasteners fastened as * for example bolts and assemblies 26 »couvenc 101131, Li se». > in le bastide 2 '"' includes an oxygen inlet tube 28 'Next the" first tube> of oxygen inlet ") which is only one of two inlet tubes; The first inlet and oxygen tube 28 is projected end-to-end with the frame assembly 2. The frame section 18 has a second tube 30. of oxygen input which is understood later and a fuel inlet tube 32 which is projected from an ext. etiio of is or, in a known manner, a frame section 22 Put a 3-in. refrigerant inlet tube that it extends laterally and a frame section 24 which provides with a tube 36"-Je entrance of the refrigerant which extends the eral mind. The tube 34, ie reflow inlet and refluxer outlet tube 36, are to be connected to appropriate inlet and return lines, and a cold recirculation system (for water example) to offer the cooling 'I'! wool assembly during the operation as is known in the art. In the same way, a carbonaceous fuel inlet tube 32 communicates with a source to »ie»: ua »da > of combus ible > -.a rb »_ > us > -i under pressure. And, the first tube »and oxygen inlet 28 and the second tube > and input axis or: igen »:? They can be connected to repaired sources of oxygen or pressure or to a common source of c > It is possible that, in combination with an appropriate system, ie valves (not shown), it can be used to independently supply oxygen to the tubes 28, 30 at times under pressures selected by the operator. For simplicity of illustration and brevity of the commentaries, the reader will note that the lani assembly 10 includes "de-seal" constructions made to isolate the various inlet pipes 28, 30, 32, 34 and 36 of assembly of communication frame fluid between them as long as there is an expansion and thermal contraction between the conducts, substantially conformity with what is described above) which together make up the body 12 > Jel side plate assembly 10. The body > : Launches 12 and consists of several elongated metal tubes 37, 38, 40, 42 and 44. The lower ends of the conductors? 7? 4O and 4? they are continuously welded on annular connection sites separated from the spearhead 16. The lower end of the conduit 8 f »: > It has a running board with a sleeve 6 snl'lada sobie l tip > and throw 16 through vain tongue 47 angular spaces ent. A »!? N when not shown- < > On top of this, the upper etal of the duct 44 communicates: ou a tub »J 32 > The carbon fuel source is maintained in a separate relation to the duct 42 or m of a plurality of spacers 4B projecting radially outwardly from the duct 44 in the interim. ionadlas to the laryo of my sm »:? . The annular space 1 between the onducts 38 and 40 defines a coolant inlet passage 50 that communicates fluidly at its upper end with a tube 34 > : ie refigerator entry. C »> As will be described in more detail below, the lower end of the refrigerant inlet passage 50 is in fluid communication with the lower one-a passageway? 52 > The output of the annular stream is established between the numbers 37 and 38. The upper section of the passage "out of the box" fluidly with UÍ \ tube 34 > : the entry > : He ref igerante. Caliduct 0 is colored > a preferably slightly eccentric in relation to the conduit 42 with defining * a first pass e 54 > The flux »ie oxygen - = em em? Conectado conectado conectado conectado conectado conectado conectado conectado conectado conectado conectado conectado conectado conectado» »» »» »» Je Je Je Je Je. ie or igene and ending in its xt ».» lower n a first oxygen injection nozzle 56 proport ». ? oua »Ja at the spear point 16. The first oxygen injection nozzle 5 /, diverges from prcce to 1 outside * at an angle>. jul > : > Acute approximately 20 ° to 30"in relation to an" A "of the> body 12. The annular space between conduits 42 and 44 defines" according to ": the passage 58> Flow> oxygen is fluidly connected with the second tube of inlet pipe and ends at its bottom in a second tn-iquilla 60 ele myec »in of oxygen »pr *» 3by> "?» jna »j eri a spear point 16, Finally, the super end 101 of the conduct or fluidly con? ta ?? u? the tube 32 > This means that the carbon fuel is in the way that the internal part of the conduit 44 »Jeffles a passage 62 of flux of > or b. »= > The carbon dioxide terminating at its lower end 1 in an injector nozzle 64 can be operated selectively in order to operate already. = .ea co or spear> of o.-geno> blower: well or device burning »ior. More particularly, after loading the load > ie an electric furnace container with an aira dial, the insertion equipment: the support of the lance f figure 2), is operated with e3 object to insert * the lance body 12 into the container an acute angle, for example 20 * a 30 ° in relation to a horizontal line, through a lance opening to adapt it. A flow of oxygen is then established. of the second oxygen inlet tube 3 while a flow of. { _ombu.-t ib] e -.arbonoso, for example »ja -. of hydrocarbon, such as, for example, natural or fine carbon in fine grains • its an adequate flow of vehicle with, for example, a nitrogen, gas or similar, is established through lulio 32 »and entry > Je combus ibl »: a i-bond. Poi I-.KIÍ i u i en. the combustible ombu-s ible oxygen ombin ri l salit of the nozzle 11 to 64 of fuel injection, ai b? no-iu and »the second oxygen injection nozzle 6. In other words, the nozzles 60, 64 cooperate to define a burner assembly whose combined flow of oxygen and of * -s > a-ga e carbon-so material can be turned on to document a * flare »'< he will trust to increase the effects of pre > : to lentom tent and > orte »ie scrap of ele. t rodos derd, r »? of] rer ipi nte de horno. Afterwards, I was cautiously slowed and cut off the > hatarra, cal assemble d > - Launch 10 can be used »r» »or lance upl ^ .Jora to add a flow > tt-oxygen and, r.i want, a flu .j separated from material carbonaceous, for example, hydrocarbon fuel or solid material in fine grains with, for example, carbon and the like in the melted steel bath. More particularly, a flow of water, carbon, or other solid material into fine grains (Hile in the meta-process) is established through the 44th word. partis * of a convective source (n>> illustrated) to start from the mouthpiece 64. If finally, -establish a flow of oxygen through the I would like to go through the elementary passage (or from, to get a source> "ie xí eno ín" "> illustrated)" ^ i? "or unication with a first tube and enti da of .-- , -. {geno 28 p »" > r] > ') »that the first injection nozzle 56 supplies the oxygen flow, it is preferred that the speed d > flow = oxygen through the pneumatic ejector mouth 6 and supersonic and reach a velocity of approximately Mach 1.5 to approximately 2.3 As is apparent from the figure 3, the first injection nozzle >; oxygen 6, directs a flux of oxygen 56a ha »; the outside < and ha. the bottom) to arid of the axial direction of the assembly > This is done 10 seconds apart from the flow of material 64a, provided that the nozzle 64 of the combustion eombustible is its coaxial entity with the longitudinal axis of the railroad industry. so that the flows »» the melted bath 66 in spaced-apart areas of the cane Escort 8 During the procedures of the fuel burner lance and the blower lance, a coolant source such as water flows through the lance assembly in a conventional manner. As previously mentioned, the former lower oar of the refrigerant conduit 38 forms a sliding seal with a sleeve 46 connected on the tip of the lance-to-16 by means of the tongues 47. The tip > : Lance 16 is also equipped with a coolant inlet 72 in fluid communication with a coolant inlet passage 50 and includes a concentric passage 74 inteirably arranged through the lance tip 16. A salt passage? ».1a 76 is formed in fluid communication with passage 74 to" return the effector through a refrigerant salute passage.

During all phases > In the operation, a coolant source is introduced, for example, water through a refrigerant inlet tube 34 and down through the coolant inlet passage 5 between the conduits 38 and 40. The flow and coolant is blown through the lancet passage 74 through the passage 76 for its introduction into the Li-salt passage 52 of the reflector 52. The tube 36 of the refillable reflux salt inside. of the baseline section 24 acts as a S3l? »for the ref lector in a conventional manner. It will be understood that, except in the case of refrigerant passages and exit 50 and 52, all other gas transmission passages gaseous »..}. and / or solid material of the lance 10 are insulated between them. With reference to Fig. 2, there is shown a conventional support and insertion jig 78 useful for manipulating the lan assembly as described above with a furnace on the »*» 8"Ai'm when it can be used" in all the operation phases of the lance assembly 10, the following description refers to the equipment of "eart e insertion" ie lance 78 as said equipment would be deployed when the assembly is used. ci throws 10 in its blower lance mode to refl ect a melted bath 66. The frame assembly * ».Je throws 14 s" is located or supported by a conventional support carriage 79 of support and insertion equipment. launches 78 to allow the miter of the body 12 through an aperture 82 for propelling lance > The electric oven 80 of conventional design, such as a 100-ton container having a plurality of electrodes 84, usually three, is provided. only two of them are shown). The body of lan.a 12 is placed > ie such by the quip 70 that the first b ».qu? l] 3 of injection > of oxygen is directed downward relative to the carbonaceous fuel injection nozzle. In addition, the > _"or! >; > > you lean of the e lanr assembly > Approximately 20 ° to 40 ° in relation to a horizontal line. Turning now to Figure 3, where the spear body has been substantially completely inserted into the container 80, the material stream 64a ejected from the injection nozzle of? The carbon fiber is optimally colored at an angle cte ° to 4"in relation to the upper part of the molten bath 66. The supersonic oxygen flow 56a from the first nozzle> oxygen injection is positioned at Approximate angles, * 45 ° to 65 ° in relation to the upper surface of the melt bath, i> D, so that the flow of oxygen does not intersect the flux: 1a hydrocarbon aa (a well carbon) above »ie the surface of the bath>> melted The supersonic flow of oxygen impinges upon the slag 68 with" deep penetration of the skin "* a series of waves in the bath of the retina with the purpose of promote thermal, physical and chemical reactions; in the bathroom, but it avoids a stratification of temperatures inside the bath and makes the melted steel. In addition, excess o 'oxygen hits the stage 68 is released from depression > of carbon monoxide to create carbon monoxide and, later, carbon dioxide for the elation of the slag, a foam for the purpose of obtaining a carbon dioxide. electrical efficiency and term? e c? > :) Metallurgy improves as. He The lance assembly 10 therefore directs the flow of hydrocarbon fuel or carbon to an area generally in the center of the molten bath above which the delta array of the electrodes 84 is conventionally positioned. Higher efficiency can be achieved by directing the flow of oxygen from the first oxygen nozzle to an impact area located a year away! < imadamente one third of the overall diameter or & melted bath starting from the net of the furnace vessel, a phenomenon that can not be achieved by means of lance assemblies with arc shapes. Also, if desired, or if necessary, instead of supplying a flow of carbonaceous material from the carbonaceous fuel injection nozzle, an oxygen flow can be discharged from the second injection nozzle of the fuel injection nozzle. or igene 60 as well as from the first oxygen injection nozzle 56, preferably at supersonic speed, to improve the de-arcization of the melted steel bath. Although the invention has been described in detail for the purpose of illustration, it is understood that said invention has only the purpose of illustrating the invention and that a person skilled in the art can make variations in the invention. without leaving either the spirit or the scope of the invention ^ it is limited only by the following indications :: ions.

Claims (6)

1. CLAIMS l. A metamorphic spear assembly that breaks off: a straight spear body that has a first end and a second extrim > : >; a frame fixed on said first end of said spear body; and a tip > of lance fixed on said second end of said spear body, said tip and spear includes a b »: > < * de? nye «> For the purpose of injecting or injecting a furnace container and at least one nozzle, the injection of carbonaceous material to inject the carbonaceous material into said furnace container will irrigate me, said nozzle > Je mye i u of > : > The generator cooperates with said at least one nozzle in the carbonaceous system in order to define a burner assembly from which a flow of oxygen and bonding material can be unloaded and ignited to produce a flame, said lantern tip includes a b »D» qu "additional discrete oxyte injection of ctich») burner assembly and extending in a > : l? re". > The diverging outward part departs from a central axis of said body 2. The mechanical seal assembly of the frame falls at said at least one injection nozzle. of oxygen and said at least one nozzle d injection of carbonaceous material »:) ci said burner assembly is e. &tends to
2. -OR substantially coaxial manner in relation to said center ee 1.
3. 3. The metallurgical lance assembly of the claim: ion 1 wherein said additional oxygen injection nozzle diverges outwardly from said central ee at an angle of approximately 20"at about 30 °
4. 4. The metal lance assembly of claim 1, wherein a" oxygen flow path "in communication is provided. of oxygen of said burner assembly, a passage of flux and carbonaceous material in common with "said at least one injection hose" ie. The carbonaceous di of the burner assembly, and an additional flow »of oxygen in communi ation c n d i > ~ h < Additional oxygen injection fork.
5. 5. A method for manufacturing steel that co-stops with the following: (a) c ga the metallurgical furnace vessel with a quantity of scrap metal; (b) supply a material flow > "arbon"? s &jt; and a flow of oxygen to a point "ie a metallurgical rectal body; < c > des > zargar and ignite a flu > - > The combined material of the carbonaceous material: oxygen coming from an in-stream, which is provided at the tip for a flame, (d) using the flame produced in the step ( C) to. "Encourage di > ra nt i .ia > : l ele c ha ta r r a; (e) ei tingu go the flame produced by the step < c > to 1 when anzazar said amount »! It will leave a desired temperature. f) inserts said * body of l.n.'a in a reciprocal position of the metallurgical furnace at a distance sufficient to place said tip in a central rej ection of said hcii'it container ». granddaughter 1 ú g? o i; and < g) supplying at least one flow of oxygen to said tip and of cai-'jai ich ».» at least one oxygen flux from said tip to be melted in said container e * horrui metalúrgi o.
6. 6. The method of claim 5 which further includes the S > ? d; ih) supplying a flow of carbonaceous material to said tip and disconnecting said flow > of carbonaceous material from said tip of t < * The manner in which the flux of a non-intersecting carbonaceous energy flowed into a flux of, < (and not. SUMMARY OF THE INVENTION An improved I-tu >assembly is presented. Oxygen Blower / Burner »ie fuel to introduce, at selected moments, a flow of oxygen / or carbonaceous fuel material, as an example of fine-grained carbon or • Hydro-bitutes (for example, natural gas and the like), in a non-electric heating system. The lance assembly includes a portion of the frame, a straight body that has an endpipe on the p >.;; > r > The bladder tip, and a second end cut on a cylindrical tip, includes the structure of the nozzle or has an oxygen injection nozzle at the end of the head. less an injection nozzle of carotid material which together define a "what-to" assembly for supplying a combined flow of carbonaceous fuel and ele- gage &pastoir > The lantern that can be ignited to produce a flame to preheat a scrap grate in an electric furnace container When the scrap is found in the fear of retreat by co-operation > ie the electric furnace and the burner, the fluj. > t > or -> jen > > of material can be used: the carbonaceous combustion In order to "pay for the flame of the quemadoi, the flow of oxygen can go to a veil" or a reduced flow to finish the first stage. in case nec sa i), or a supersonic flow velocity for refining »- / ceasearburra e3 melted steel bath.