• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Shown are a smelting reduction unit 1 and a method of operating a smelting reduction unit with solid carbon support and iron-containing feedstock chargers having a meltdown gasification zone containing a fixed bed 4 formed by the solid carbon carriers and the ironaceous feeds, with a lower section for receiving liquid pig iron 6 and liquid slag 7 having a liquid slag tapping 9 and liquid pig iron having a plurality of oxygen nozzles 5 for supplying oxygen, the plurality of oxygen nozzles being arranged in at least two nozzle planes spaced apart from one another in a vertical direction and distributed horizontally over the nozzle Scope of the shell 10 of the smelting reduction unit 1 and are arranged offset in different nozzle planes in each case.
    公开号:AT511738A1
    申请号:T1071/2011
    申请日:2011-07-21
    公开日:2013-02-15
    发明作者:
    申请人:Siemens Vai Metals Tech Gmbh；
    IPC主号:
    专利说明:

    2011P11294AT 1
    A smelting reduction unit and method of operating a smelting reduction unit
    FIELD OF THE INVENTION
    The invention relates to a smelting reduction unit with solid carbon support charging means, such as lump coal, and ferrous feedstocks, such as partially and / or completely reduced sponge iron, having a meltdown gasification zone containing a fixed bed formed by the solid carbon carriers and the iron containing feeds, with a lower section for receiving liquid pig iron or steel pre-material and liquid slag, with a slag for liquid slag and liquid pig iron, with a plurality of oxygen nozzles, which are arranged in the shell of the smelting reduction unit, with supply lines for supplying oxygen to the oxygen nozzles, in particular a loop, which annularly surrounds the jacket of the smelting reduction unit and from which gas containing oxygen-containing gas can be supplied to the oxygen nozzles.
    The invention further relates to a method for operating a smelting reduction unit.
    STATE OF THE ART
    From the prior art, such as WO 01/14599 A1, it is known to arrange a plurality of oxygen nozzles on the periphery of a smelting reduction unit. This makes it possible to form a CO and H2-containing reducing gas in the smelting reduction unit in a fixed bed formed of solid carbon carriers and iron-containing feedstocks. In this type of arrangement of the oxygen nozzles, however, the number of oxygen nozzles and thus the maximum achievable melting capacity or pig iron production quantity is limited.
    In smelting reduction processes, such as. For example, COREX and FINEX, which have a smelting reduction unit, in particular a melter gasifier, oxygen nozzles are installed on the periphery between stove and Char bed (fixed bed, coal bed) to the oxygen for the gasification of carbon to produce the reducing gas and to provide the required energy as evenly as possible To inflate circumference. In addition, it is also known fine coal over the
    I FOLLOWED ·· * 4 ** # »- * ·· * 4 ** #» - * 2
    2011P11294AT
    To inject oxygen nozzles to the coal consumption - in particular the charcoal or. Briquette consumption - reduce.
    Operating results have shown that the melting performance per oxygen nozzle limits, since both too much gas and too much resulting liquid pig iron and liquid slag can cause insufficient permeability before and / or below and / or above the oxygen nozzle level. This results in higher demands on the raw materials used, so that nevertheless a corresponding fixed bed stability can be achieved or ensured. Another consequence is a limitation of the fine-particle injection, since this measure can likewise have a permeability-reducing effect, so that process disturbances, such as, for example, a limitation of the performance or even quality fluctuations may result. Furthermore, lack of drainage of the liquid phases (e.g., pig iron, slag) can also result in nozzle damage.
    Previous operating results of such equipment show that a correlation between the frequency of nozzle damage and the melt performance per nozzle is likely. Furthermore, it was shown that the inflatable fine coal amount per nozzle is limited.
    Different solutions have dealt with the variations of the nozzle geometries. Nevertheless, the results have not been satisfactory so far, especially for installations with higher pig iron production volumes.
    Furthermore, there are development projects that aim to increase the production of pig iron. Previously known arrangements of the oxygen nozzles in a nozzle plane and on the circumference of a smelting reduction unit lead due to the size of the nozzle carrier and the required plate thicknesses of the carburettor between the nozzle carriers to a small number of oxygen nozzles and thus to plants with performance limitations, or to process disturbances and low availability due to nozzle noise.
    In addition, an increase in performance of the smelting reduction unit can be achieved by increasing the hearth area, ie the inner cross-section of the smelting reduction unit, whereby the extent does not increase to the same extent, so that restrictions also arise in this respect.
    FOLLOWED 20ΠΡ11294ΑΤ 3 * * * * · - t · ** «*» i », > * * i «· * + *» »·» · · · · s · «
    PRESENTATION OF THE INVENTION
    It is therefore an object of the invention to provide a smelting reduction unit and a method for operating a smelting reduction unit, which enables a higher production of pig iron with simultaneous safe operation.
    The object is achieved by the characterizing part of claim 1, by a plurality of oxygen nozzles, which are arranged in at least two mutually, in particular in the vertical direction, spaced and mutually parallel nozzle planes and distributed horizontally over the circumference of the shell of the smelting reduction unit. In addition, the nozzles of different nozzle levels are each arranged offset from one another. The oxygen nozzles can be used to introduce technically pure oxygen or oxygen-rich gases, such as. be used with oxygen enriched air.
    Smelting reduction units are used for the production of liquid pig iron or liquid steel precursors. From the iron-containing feedstock and coal, coke, the iron-containing feedstocks are reduced to hot metal and melted. This takes place in a fixed bed formed from the coal or the coke and the iron-containing feedstocks. As a smelting reduction aggregates for this purpose melter gasifier are known. Likewise, a blast furnace, in particular a blast furnace operated with highly oxygen-containing gases, in which the formation of liquid pig iron and slag from a fixed bed can also be used, can also be used.
    The arrangement of the oxygen nozzles in two or more nozzle levels makes it possible to increase or maximize the number of possible nozzles that can be arranged in the smelting reduction unit.
    In order to increase the pig iron production per smelting reduction aggregate, the problem of process disturbances and frequent nozzle damage must first be solved, since a higher pig iron production also requires a higher melting capacity per nozzle. The increase in the frequency of nozzle damage is related to the fact that higher melt output per nozzle increases the pig iron and slag flows, which in turn can lead to damage or disruption of the nozzles.
    The oxygen nozzles may be distributed evenly around the circumference of the shell of the smelting reduction unit, wherein an arrangement of the oxygen nozzles in each case in groups,
    SUBSEQUENT
    2011P11294AT 4 # »• * * * * * • t 4 # I • * * * 4. •« i • »• * · * # • 1 4 which are distributed over the circumference. The oxygen nozzles of a group could then be e.g. be controlled together.
    According to the invention, the number of oxygen nozzles can be increased by the arrangement of the oxygen nozzles in at least two nozzle levels and thus the melting power per oxygen nozzle can be reduced. Due to the staggered arrangement of the oxygen nozzles on at least two nozzle levels, mutual interference or damage to the oxygen nozzles in the nozzle planes can be avoided. The direct juxtaposition of nozzles on two nozzle planes would cause overlying oxygen nozzles to be damaged by the gas flow of underlying oxygen nozzles. In addition, there is also the danger that the lower oxygen nozzles could be affected or even damaged by the pig iron and slag flow from overlying oxygen nozzles. The inventive arrangement, it is possible to increase the number of oxygen nozzles and thus the melting capacity of the smelting reduction aggregate, without the risk of higher nozzle damage, which would result in a lower availability of the system. The nozzle planes are arranged parallel to one another, the nozzle planes being normal to the usually vertical axis of the smelting reduction unit. In addition, the nozzle levels are arranged such that the oxygen nozzles are in the region of the fixed bed, which forms in the smelting reduction aggregate.
    According to an advantageous embodiment of the inventive smelting reduction unit, the vertical distance between the nozzle planes, in particular the vertical distance between the outlet openings of the oxygen nozzles, is smaller or at most equal to the horizontal distance between the nozzles. The smallest possible distance between the nozzle planes has the advantage that a mutual damage of the nozzles is avoided. It is advantageous to set the smallest possible distance between the nozzle levels. This can e.g. be achieved by an increased horizontal distance between the nozzles. In particular, it depends on the distance of the exit points of the oxygen from the oxygen nozzles in the interior of the smelting reduction unit.
    According to another possible embodiment of the smelting reduction unit according to the invention, at least one of the nozzles with respect to the horizontal one, in particular at an angle of 0 to 16 °, preferably 4-12 °, downwardly directed, inclination of the nozzle axes. REPLACED | 5
    2011P11294AT * * * * * * f * -ί Γ% • · · «« • ♦ · · * *
    • «·» Φ I · «« a · ·
    Due to the downward inclination of the nozzle axes forms before the oxygen nozzle, a gas bubble, which is referred to as Raceway and which compared to the oxygen outlet from the oxygen nozzle is lower than at horizontal nozzle axis. Thus, the level of the forming in this area fluids (eg pig iron, slag) in the gas bubble and thus lower than the oxygen nozzle, so that damage to the oxygen nozzle can be almost ruled out because the oxygen is not blown directly into the liquid, so also no bubbles are formed in the liquid.
    An advantageous embodiment of the smelting reduction unit according to the invention provides that at least two of the nozzles, which are arranged on two different nozzle planes, have different, in particular downwardly directed, inclinations of the nozzle axes. This makes it possible to determine the forming raceways with respect to their position relative to the oxygen nozzles and, where appropriate, to adapt to the amounts of oxygen.
    According to the invention, at least one nozzle of a nozzle plane with respect to the horizontal has a smaller inclination of the nozzle axis, in particular 0-15 °, than at least one nozzle of an overlying nozzle plane, in particular 6-25 °. By adjusting the angle of inclination between the nozzle planes, a homogeneous melting performance of the oxygen nozzles can be set overall and a mutual negative influence on the oxygen nozzles can be avoided by keeping the vertical distance inside the smelting reduction unit as small as possible. In particular, it is also possible to adjust the angles of inclination in the oxygen nozzles, e.g. for the injection of fine coal use find.
    According to a special embodiment of the smelting reduction unit according to the invention, all oxygen nozzles of a nozzle plane have the same inclination of the nozzle axis relative to the horizontal, in particular downwards. The uniform orientation of the oxygen nozzles has the advantage that mounting elements, such as e.g. Nozzle carrier, can be carried out the same. Furthermore, a largely uniform melting performance can be achieved over the circumference of the smelting reduction unit,
    A particularly advantageous embodiment of the smelting reduction unit according to the invention provides that all the oxygen nozzles are arranged such that the gas and / or oxygen escaping from the oxygen nozzles or formed by the oxygen
    SUBSEQUENT
    2011P11294AT 6 * *
    Liquid flows do not overlap each other. During operation of the oxygen nozzles, gas flows as well as pig iron and slag flows occur on the one hand. These must not cause any damage to the other oxygen nozzles or they must not overlap or influence each other. Due to the known operating parameters, the oxygen nozzles can be arranged such that there is no overlapping or overlapping or mutual influences in the operating parameter range.
    It may also be allowed a slight overlap of the gas and / or liquid flows, without causing nozzle damage. This can be adjusted by operating trials.
    The object is further achieved by the method according to the invention in that the supply of the oxygen-containing gas or oxygen in the smelting reduction unit via the oxygen nozzles, in at least two mutually spaced, and in particular in the vertical direction, spaced nozzle planes and horizontally distributed over the circumference the shell of the smelting reduction unit are arranged and wherein the oxygen nozzles of different nozzle planes are each arranged offset from one another. Due to the advantageous arrangement, the number of oxygen nozzles can be increased while the pig iron production can be increased considerably, without having to take the risk of a lower availability of the process. Due to the arrangement according to the invention, the oxygen nozzles can be operated with lower melt outputs per oxygen nozzle, which in turn reduces the availability or the probability of nozzle disturbances.
    Advantageously, the gas and / or liquid flows emerging from the oxygen nozzles or formed by the oxygen-containing gas or oxygen do not overlap one another. This ensures during operation that no nozzle damage occurs and optimum melting performance is achieved. This is particularly relevant for the entry of fine coal on the oxygen nozzles, as this in turn can be saved coal without reducing the amount of pig iron.
    According to an advantageous embodiment of the method according to the invention, the arrangement of the oxygen nozzles in at least two nozzle planes and the inclination of the nozzle axes are selected such that a minimum vertical distance between the nozzle tips is set. By the minimum distance of the nozzle tips can
    RETURNED 7
    2011P11294AT • · «* * ¥ * j ·. * • * * * * j. ♦ * · · * • «» · 1 4 • «I ·« • «. , · In turn, the risk of mutual damage of oxygen nozzles can be reduced. In this case, the points of the oxygen nozzles, at which the oxygen exits the oxygen nozzle, positioned as closely as possible next to each other and thus exclude mutual damage.
    With oxygen nozzles arranged one above another, the liquid formed at an upper oxygen nozzle flows over the lower oxygen nozzle and additionally overloads the fixed bed in front of the oxygen nozzle, since the degree of voiding in the fixed bed is insufficient for drainage, so that there is a backflow of liquid in this area comes. The gas of the lower oxygen nozzle flows past the upper oxygen nozzle. Both can lead to massive process disturbances and increased nozzle damage. In a staggered arrangement, analogue negative effects may still occur under some circumstances. But as soon as the lower oxygen nozzles are arranged inclined and the upper, relative to the lower oxygen nozzles arranged between them and are more inclined, there is a small vertical distance, the flows of liquids and gases, the oxygen nozzles no longer disturb each other.
    According to the invention, the oxygen amount introduced via at least two nozzle levels is adjusted such that the forming gas and / or liquid flows do not touch any oxygen nozzles. The inventive arrangement of the oxygen nozzles and the resulting due to the total number of oxygen nozzles specific melting capacity and thus specific oxygen amount per oxygen nozzle on the one hand, the nozzle assembly and the gas flows or the pig iron and slag streams are coordinated so that the oxygen nozzles are not damaged or restricted in your operation become. The gas and / or liquid flows of an oxygen nozzle of a nozzle level may affect the oxygen nozzles of another nozzle level only to the extent that it does not lead to process disturbances or nozzle damage. Another positive effect results from the fact that the gas flow of the upper nozzle level deflects the gas flow of the lower levels more towards the center of the smelting reduction unit and thereby increases the active cross section of the fixed bed. The resulting lower gas velocities lead to a more stable operation. In the circumferential direction, the higher possible nozzle number better distributes the energy input and reduces the inactive area between the nozzles, with better gas distribution, lower local gas velocities, better distribution of the gas
    SUBSEQUENT
    2011P11294AT 8
    Liquids and from this an increase in performance in terms of pig iron quantity, improved process stability and product quality is achieved.
    BRIEF DESCRIPTION OF THE FIGURES
    The invention will be explained with reference to schematic figures 1, 2 and 3 by way of example and not limitation.
    1 shows a vertical section through a smelting reduction unit designed as a melter gasifier
    Fig. 2: Section of a view of the oxygen nozzles in the assembled state Fig. 3: Schematic representations of the arrangement and the material flows
    WAYS FOR CARRYING OUT THE INVENTION
    1 shows a vertical section through a melting reduction unit designed as a melter gasifier 1, which is charged from above by means of charging devices and solid carbon carriers 2 and iron-containing feedstocks 3. The carbon carriers 2 are preferably formed from lumpy coal and / or coke and / or coal briquettes, the iron-containing feedstocks preferably of partially and / or fertigreduziertem, lumpy and / or feinteilchenförmigem sponge iron.
    In front of the melter gasifier 1, one or more reduction units not shown here, for example direct reduction ducts or fluidized bed units, are arranged, in which iron oxide-containing material is reduced to the partially and / or completely reduced iron sponge by means of the reducing gas generated in the melter gasifier 1. This sponge iron is conveyed out of the reduction shaft and fed to the melter gasifier 1. The smelting reduction unit can also be designed as a blast furnace. Here, the reduction zone and the melting zone are arranged in an aggregate, so that the smelting reduction unit is formed by the lower part of the blast furnace while the prereduction takes place in the upper part of the blast furnace.
    In the meltdown gasification zone of a melter gasifier 1, a fixed bed 4 formed by the solid carbon supports 2 is formed. Likewise, a fixed bed in the area of the oxygen nozzles forms in a blast furnace. In this fixed bed 4 is about
    REPLACED θ
    2011P11294AT • »t) 1 • * · * * • < * * 1 • * · · " # ** * * · "
    Oxygen nozzles 5 an oxygen-containing gas, preferably technical oxygen or oxygen-containing gases injected. At the same time, the iron-containing starting materials 3 are melted into liquid pig iron 6 and liquid slag 7 with simultaneous formation of a reducing gas. The reducing gas formed is withdrawn from the melter gasifier via a reducing gas discharge line 8.
    Liquid pig iron 6 and liquid slag 7 collect in a lower portion of the melter gasifier 1 and are tapped off via a tapping 9. Oxygen or oxygen-containing gas is first introduced via a supply line, not shown, such as e.g. fed via a circular ring surrounding the melter gasifier 1. Similarly, a blast furnace is supplied via a loop. From the supply line, the oxygen nozzles 5 can be supplied via gas lines, not shown.
    The oxygen nozzles 5 are arranged in the outer region of the jacket of the melter gasifier 1 and connected via a bore channel with the interior of the melter gasifier 1. Starting from the tapping 9, whose position is usually defined by the height of the casting hall and the gutters for transporting the pig iron and the slag, the so-called hearth height (distance between tapping 9 and the oxygen nozzles 5) is determined. This area is used to store the resulting liquids (pig iron and slag) and the course of the metallurgical reactions. Above the oxygen nozzles 5 is the durchgaste Charbett (moving fixed bed) to the dome, which forms a gas space for conditioning.
    2 shows a schematic representation of the arrangement of oxygen nozzles 5 and in a melter gasifier 1, wherein the oxygen nozzles 5 are arranged in the jacket 10 of the melter gasifier 1. The nozzle carriers, which serve to mount the oxygen nozzles 5 on the jacket of the melter gasifier 1, are indicated here only schematically. The oxygen nozzles 5 extend through an indicated refractory layer 11 into the process space of the melter gasifier 1. The nozzle carriers can also be designed with a different inclination than the oxygen nozzle axes. This is to be seen in connection with the mantle inclination of the melter gasifier or the mantle inclination of a blast furnace. For example, a cladding slope of 8 " and an inclination of the nozzle axis can also be used by 8 °, in order to use a rotationally symmetrical design of the sealing and conical seats for the installation of the oxygen nozzles and the nozzle carrier in the shell of the unit. But it is also not rotationally symmetric solutions under certain shell geometries useful. REPLACED |
    4 «2011P11294AT 10 • · ι» «« * -
    The oxygen nozzles 5 are arranged in two superimposed nozzle planes, but horizontally offset from one another, so that no oxygen nozzle 5 is arranged directly above an underlying oxygen nozzle 5. Via the oxygen nozzles 5, the oxygen and optionally also fine carbon carriers, such as e.g. Carbon dust or fine coal, introduced into the melter gasifier and the present fixed bed 4, consisting of particulate carbon carriers. In this case, the amount of oxygen necessary for the operation of the melter gasifier 5 is introduced so that the required energy is provided, the gasified coal and thus a reducing gas is formed. Per oxygen nozzle 5 so a melting performance is provided, each forming a pig iron and slag stream and a gas stream.
    This is shown schematically in FIG. A possible arrangement of the oxygen nozzles on the circumference of the shell 10 of the melter gasifier 1 is shown schematically. A group of oxygen nozzles are arranged on the nozzle planes 12 and 13, respectively. It is expedient to arrange the oxygen nozzles evenly distributed over the circumference of the shell 10. The number of oxygen nozzles is determined essentially by the circumference or diameter of the melter gasifier 1 and the desired pig iron production quantity. The distance A between two oxygen nozzles of a nozzle plane is selected such that the number of oxygen nozzles in the two nozzle planes 12 and 13 is maximized, wherein the distance B between the nozzle planes 12 and 13 is kept as small as possible to mutual interference or damage to the To avoid oxygen nozzles. In most cases, the distance B is chosen to be smaller than the distance A.
    In order to achieve trouble-free operation, the distance C between the so-called nozzle tips 14, ie the vertical distance between the outlet openings of the oxygen nozzles 5 of two nozzle planes in the interior of the nozzle, is particularly important.
    By the inventive arrangement of the oxygen nozzles 5, a significantly larger number can be realized, without having to go into disadvantages in terms of the operation of the oxygen nozzles or the plant availability. It is also advantageous that the nozzle carrier can be easily mounted on the jacket 10 of the melter gasifier 1, so that less complex and less expensive nozzle mounting devices or nozzle carrier can be realized.
    SUBSEQUENT
    2011P11294AT 11 • · • «i ι
    The axes 17 of the oxygen nozzles 5 are inclined relative to the horizontal. The angles of inclination of the axes of a nozzle plane can be designed differently, but often a uniform angle of inclination is selected for all nozzle-level oxygen nozzles. The angle of inclination of the axes of the oxygen nozzles of a nozzle plane lying above 5 is advantageously made larger than that of an underlying nozzle plane. This ensures that the outlet openings of the oxygen nozzles 5 are close to each other.
    The supplied oxygen and, optionally, fine coal pass through the nozzle tips 14 into the process space of the melter gasifier, wherein each oxygen nozzle 5 generates a substantially upward gas stream 15 and a downwardly directed pig iron and slag stream 16. These flows are shown schematically in the right-hand part of FIG. 3, wherein it can be seen that these flows do not touch or hit other oxygen nozzles above or below. In addition, these streams do not overlap each other. The number of nozzle levels is chosen or maximized after 15 times of required meltdown and could be increased to 3 or more nozzle levels.
    SUBSEQUENT
    权利要求:
    Claims (11)
    [1]
    2011P11294AT 12 ϊ ίί: · · 1 ** 4 »« | PATENT CLAIMS 1. Smelting reduction unit (1) with solid carbon support (2), such as particulate coal, and ferrous raw materials (3), such as and / or finished reduced sponge iron, comprising a meltdown gasification zone containing a fixed bed (4) formed by the solid carbon supports (2) and the ironaceous feedstocks (3), having a lower section for receiving molten pig iron (6) or steel prematerial and more liquid Slag (7) having a liquid slag tapping (9) and liquid pig iron, having a plurality of oxygen nozzles (5) disposed in the shell (10) of the smelting reduction unit (1), with supply lines for supplying oxygen-containing gas or oxygen to the oxygen nozzles (5), in particular a ring line, which annularly surrounds the jacket (10) of the smelting reduction unit (1), characterized in that the plurality of Oxygen nozzles (5) in at least two from each other, in particular in the vertical direction, spaced and mutually parallel nozzle planes and horizontally distributed over the circumference of the shell of the smelting reduction unit and in different nozzle planes, each offset from each other.
    [2]
    2. smelting reduction unit according to claim 1, characterized in that the vertical distance (B) between the nozzle planes, in particular the vertical distance (C) between the outlet openings of the oxygen nozzles 5, smaller or at most equal to the horizontal distance (A) between the oxygen nozzles (5 ).
    [3]
    3. smelting reduction unit according to claim 1 or 2, characterized in that at least one of the oxygen nozzles (5) with respect to the horizontal one, "REPLACED" 13P11294AT 13

    in particular at an angle of 0 - 25 ° downwardly directed, inclination of the nozzle axis (17).
    [4]
    4. smelting reduction unit according to one of the above claims, characterized in that at least two of the oxygen nozzles (5), which are arranged on two different nozzle levels, different, in particular downwardly directed, inclinations of the nozzle axes (17).
    [5]
    5. smelting reduction unit according to one of the above claims, characterized in that at least one oxygen nozzle (5) of a nozzle plane relative to the horizontal, a smaller inclination of the nozzle axis (17), in particular 0-15 °, than at least one oxygen nozzle (5) of an overlying nozzle plane, especially 6-25 °.
    [6]
    6. smelting reduction unit according to one of the above claims, characterized in that all the oxygen nozzles (5) have a nozzle plane in each case with respect to the horizontal, the same, in particular downwardly directed, inclination of the nozzle axis (17).
    [7]
    7. smelting reduction unit according to one of the above claims, characterized in that all oxygen nozzles (5) are arranged such that the gas flows from the oxygen nozzles (5) or formed by the oxygen (15) and / or liquid flows (16) do not overlap each other.
    [8]
    8. A method for operating a smelting reduction unit, in the iron-containing feedstocks, such as partially and / or fertigreduzierter sponge iron, with the addition of solid Kohlenstoffträgem and supply of an oxygen-containing gas or oxygen over a plurality of distributed over the circumference of the smelting reduction unit oxygen nozzles in one of the solid Carbon tetra formed fixed bed optionally completely reduced and with simultaneous formation of a CO and H2-I later]

    2011P11294AT reducing gas to liquid pig iron or steel pre-material are melted, wherein the oxygen-containing gas is fed via gas lines to the oxygen nozzles, from where the oxygen-containing gas is injected into the fixed bed, characterized in that the supply of the oxygen-containing gas in the smelting aggregate on the Oxygen nozzles takes place, which are arranged in at least two mutually, in particular in the vertical direction, spaced and mutually parallel nozzle planes and distributed horizontally over the circumference of the shell of the smelting reduction unit and wherein the nozzles of different nozzle planes are each arranged offset from each other.
    [9]
    9. The method according to claim 8, characterized in that emerging from the nozzles or formed by the oxygen-containing gas or oxygen gas and / or liquid flows do not overlap each other.
    [10]
    10. The method of claim 8 or 9, characterized in that the arrangement of the nozzles are selected in at least two nozzle planes and the inclination of the nozzle axes 15 such that a minimum vertical distance between the nozzle tips is set inside the smelting reduction unit.
    [11]
    11. The method according to any one of claims 8-10, characterized in that the, introduced over at least two nozzle planes arranged nozzles amount of oxygen is adjusted such that the forming gas and / or liquid flows 20 touch no nozzles. SUBSEQUENT
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    同族专利:
    公开号 | 公开日
    US20140138883A1|2014-05-22|
    CA2842269A1|2013-01-24|
    CN103687965A|2014-03-26|
    BR112014001314A2|2017-02-21|
    CN103687965B|2016-04-27|
    RU2605738C2|2016-12-27|
    EP2734649B1|2016-05-25|
    AU2012286121B2|2016-09-15|
    US9400138B2|2016-07-26|
    UA110390C2|2015-12-25|
    EP2734649A1|2014-05-28|
    KR20140061417A|2014-05-21|
    ZA201400183B|2015-06-24|
    RU2014106542A|2015-08-27|
    WO2013010725A1|2013-01-24|
    AT511738B1|2013-04-15|
    AU2012286121A1|2014-01-30|
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    AT511738B1|2011-07-21|2013-04-15|Siemens Vai Metals Tech Gmbh|MELT REDUCTION AGGREGATE AND METHOD FOR OPERATING A MELT REDUCTION AGGREGATE|AT511738B1|2011-07-21|2013-04-15|Siemens Vai Metals Tech Gmbh|MELT REDUCTION AGGREGATE AND METHOD FOR OPERATING A MELT REDUCTION AGGREGATE|
    CN106399665B|2016-10-21|2018-04-06|中钢集团鞍山热能研究院有限公司|A kind of method and device of low-grade coal vanadium extraction pure oxygen roasting|
    法律状态:
    2013-06-15| HA| Change or addition of new inventor|Inventor name: FRANZ DIPL.ING. BERNER, AT Effective date: 20130429 Inventor name: JOHANN DIPL.ING. WURM, AT Effective date: 20130429 Inventor name: JAN DIPL. ING. DR. FRIEDEMANN PLAUL, AT Effective date: 20130429 Inventor name: KURT DIPL.ING. WIEDER, AT Effective date: 20130429 |
    2016-06-15| PC| Change of the owner|Owner name: PRIMETALS TECHNOLOGIES AUSTRIA GMBH, AT Effective date: 20160415 |
    2018-03-15| MM01| Lapse because of not paying annual fees|Effective date: 20170721 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA1071/2011A|AT511738B1|2011-07-21|2011-07-21|MELT REDUCTION AGGREGATE AND METHOD FOR OPERATING A MELT REDUCTION AGGREGATE|ATA1071/2011A| AT511738B1|2011-07-21|2011-07-21|MELT REDUCTION AGGREGATE AND METHOD FOR OPERATING A MELT REDUCTION AGGREGATE|
    CN201280036107.0A| CN103687965B|2011-07-21|2012-06-13|Melting and reducing equipment and the method for running melting and reducing equipment|
    EP12727848.9A| EP2734649B1|2011-07-21|2012-06-13|Melting reduction assembly and method for operating a melting reduction assembly|
    UAA201400532A| UA110390C2|2011-07-21|2012-06-13|Melting reduction assembly and to a method for operating a melting reduction assembly|
    KR1020147004444A| KR20140061417A|2011-07-21|2012-06-13|Melting reduction assembly and method for operating a melting reduction assembly|
    AU2012286121A| AU2012286121B2|2011-07-21|2012-06-13|Melting reduction assembly and method for operating a melting reduction assembly|
    US14/233,304| US9400138B2|2011-07-21|2012-06-13|Melting reduction assembly and method for operating a melting reduction assembly|
    BR112014001314A| BR112014001314A2|2011-07-21|2012-06-13|Fusion Reduction Assembly and Method for Operating a Fusion Reduction Assembly|
    CA2842269A| CA2842269A1|2011-07-21|2012-06-13|Melting reduction assembly and method for operating a melting reduction assembly|
    RU2014106542/02A| RU2605738C2|2011-07-21|2012-06-13|Installation for reduction smelting and operating method of reduction smelting|
    PCT/EP2012/061159| WO2013010725A1|2011-07-21|2012-06-13|Melting reduction assembly and method for operating a melting reduction assembly|
    ZA2014/00183A| ZA201400183B|2011-07-21|2014-01-09|Melting reduction assembly and method for operating a melting reduction assembly|
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