• 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:
    TOP SUBMERGED INJECTION BOOMS. A boom to conduct a pyrometallurgical operation by injection of a submerged top boom (TSL) has substantially concentric inner and outer pipes. The lower end of the inner or at least one nearest inner pipe is adjusted at a level with respect to the lower end of the outer pipe required for pyrometallurgical operation. The relative positions of the inner and outer pipes are longitudinally adjustable to enable the length of the mixing chamber to be maintained at a desired setting during a period of use to compensate for wear and late blast at the lower end of the outer pipe.
    公开号:BR112013033631B1
    申请号:R112013033631-5
    申请日:2012-06-27
    公开日:2021-03-16
    发明作者:Matusewicz Robert；Reuter Markus
    申请人:Outotec Oyj；
    IPC主号:
    专利说明:

    Field of the Invention
    [001] This invention relates to top submerged injection lances for use in molten bath pyrometallurgical operations. Background of the Invention
    [002] Casting of molten bath or other pyrometallurgical operations that require the interaction between the bath and an oxygen-containing gas source use several different arrangements for supplying the gas. In general, these operations involve direct injection into molten metal / matte. This can be for bottom blow nozzles as in a Bessemer type oven or side blow nozzles as in a Peirce-Smith type of converter. Alternatively, the gas injection can be by means of a lance to provide top blowing or submerged injection. Examples of top blow lance injection are the KALDO and BOP steel marking plants in which pure oxygen is blown from above the bath to produce steel from cast iron. Another example of top blow lance injection is provided by the casting and matte conversion stages of Mitsubishi's copper process, where injection lances cause jets of oxygen-containing gas such as air or oxygen-enriched air to crash against and penetrate the top surface of the bath, respectively to produce and convert copper matt. In the case of submerged boom injection, the lower end of the boom is submerged as soon as the injection occurs inside rather than above a layer of bath slag, to provide top submerged boom (TSL) injection.
    [003] With both forms of injection from above, that is, top blowing and TSL injection, the lance is subjected to intense prevailing bath temperatures. The top blow in the Mitsubishi copper process uses a number of relatively small steel lances that have an inner tube about 50 mm in diameter and an outer tube about 100 mm in diameter. The inner tube ends at about the level of the oven roof, well above the reaction zone. The outer tube, which is rotatable to prevent it from sticking to a water-cooled collar on the oven roof, extends downward into the gas space of the oven to position its bottom end about 500-800 mm above the top surface of the molten bath. Particulate feed entrained in air is blown through the inner tube, while oxygen enriched air is blown through the annulus between the tubes. Despite the spacing of the lower end of the outer tube above the surface of the bath, and any cooling of the lance by the gases passing through it, the outer tube burns by about 400 mm per day. The outer tube is therefore slowly shrunk and, when required, new sections are attached to the top of the consumable outer tube.
    [004] The TSL injection lances are much larger than those for top blowing, as in the Mitsubishi process described above. A TSL boom usually has at least one inner tube and one outer tube, as assumed in the following, but it can have at least one other tube concentric with the inner and outer tubes. In the TSL boom the outer tube has a diameter of 200 to 500 mm, or larger. Also, the boom is much longer and extends down through the roof of a TSL reactor, which can be about 10 to 15 m high, so the bottom end of the outer tube is immersed to a depth of about 300 mm or more in a molten slag phase of the bath, but is protected by a coating of solidified slag formed and maintained on the outer surface of the outer tube. The inner tube, about 100-180 mm in diameter, can end at about the same level as the outer tube, or at a higher level up to about 1000 mm above the lower end of the outer tube. A helical paddle or other flow shaping device can be mounted on the outer surface of the inner tube to traverse the annular space between the inner and outer tubes. The blades transmit a strong whirlwind action to an air or oxygen-enriched blast along this annulus and serve to increase the cooling effect as well as to ensure that the gas is well mixed with fuel and feed material supplied through the inner tube with the mixing taking place substantially in a mixing chamber defined by the outer tube, below the lower end of the inner tube where the inner tube ends a sufficient distance above the lower end of the outer tube.
    [005] The outer tube of the TSL boom wears out and burns at its lower end, but at a rate that is considerably reduced by the protective slag coating that would be the case without the coating. However, this is controlled to a substantial degree by the mode of operation with TSL technology. The operating mode makes the technology viable despite the lower end of the boom being submerged in the highly reactive and corrosive environment of the molten slag bath. The inner tube of a TSL boom provides feed materials such as concentrate, fluxes and reducer to be injected into a layer of slag from the bath, as well as fuel. An oxygen-containing gas, such as air or oxygen-enriched air, is supplied through the annulus between the tubes. Before the injection submerged within the slag layer of the bath is initiated, the lance is positioned with its lower end, that is, the lower end of the outer tube, spaced at a suitable distance above the surface of the slag. Oxygen-containing gas and fuel, such as fuel oil, fine coal or hydrocarbon gas, are supplied to the lance and a resulting oxygen / fuel mixture is burned to generate a jet of flame that propagates beyond the submerged end of the outer tube and strikes against the scum. This causes the slag to spread to form, in the outer tube of the lance, the layer of slag that is solidified by the gas vapor that passes through the lance to provide the aforementioned solid slag coating. The lance is then able to be lowered to achieve injection into the slag, with the continuous passage of oxygen-containing gas through the lance keeping the lower extension of the lance at a temperature at which the solidified slag lining is maintained to protect the outer tube. .
    [006] With a new TSL boom, the relative positions of the lower ends of the outer and inner tubes, that is, the distance to the lower end of the inner tube is reduced, if at all, from the lower end of the outer tube, is an optimal length for a particular pyrometallurgical operation window determined during design. The optimum length may be different for different uses of TSL technology. Thus, each two-stage batch operation to convert copper mate to blister copper with oxygen transfer via slag to mate, a continuous single stage operation to convert copper mate to blister copper, a process for reducing a slag containing lead, and a process for casting an iron oxide feed material for the production of pig iron, all require using a different respective optimum mixing chamber length. However, in each case, the length of the mixing chamber progressively falls below the optimum for pyrometallurgical operation as the lower end of the outer tube slowly wears out and blazes. Similarly, if there is zero displacement between the ends of the outer and inner tubes, the lower end of the inner tube may become exposed to the slag, with the slag also being worn and subjected to blasting. Thus, at intervals, the bottom end of at least the outer tube needs to be cut to provide a clean edge to which a tube length of the appropriate diameter is welded, to re-establish the optimal relative positions of the bottom ends of the tube to optimize the conditions of foundry.
    [007] The rate at which the lower end of the outer tube wears out and burns varies with the molten bath pyrometallurgical operation being conducted. The factors that determine this rate include feed processing rate, operating temperature, bath fluidity, boom flux rates, etc. In some cases the corrosion and late blast wear rate is relatively high and can be such that in the worst case several hours of operating time can be lost in one day due to the need to interrupt processing to remove a worn boom from operation and replace it by another, while the worn boom taken out of service is repaired. Such stops can occur several times in a day with each stop adding non-processing time. While TSL technology offers significant benefits, including cost savings, over other technologies, the uptime lost for boom replacement carries a significant cost penalty.
    [008] The present invention is aimed at providing an alternative top submerged boom that enables a reduction in time loss through the need for boom replacements. Summary of the Invention
    [009] In accordance with the present invention, a lance is provided to conduct a pyrometallurgical operation by top submerged lance injection (TSL), in which the lance, to conduct a pyrometallurgical operation by top submerged lance injection ( TSL), wherein the boom has a plurality of substantially concentric tubes including inner and outer tubes and, optionally, at least one tube between the inner and outer tubes; the lower end of the interior or the inner tube and at least one outermost tube nearby is adjusted substantially to a required level relative to the lower end of the outer tube required for pyrometallurgical operation; where the relative positions of the inner and outer tubes are longitudinally adjustable to enable the required adjusted level or length of a mixing chamber between the lower ends of the inner and outer tubes to be maintained over a period of use to compensate for wear and re-firing the lower end of the outer tube; and where the boom defines at least two passages, including a defined annular passage between two of the tubes and a passage defined by the inner tube, whereby the boom allows fuel / reducer and oxygen-containing gas to be injected separately through the boom as well as mixed at the outlet ends of the inner and outer tubes and generate a combustion zone within a slag phase during submerged top injection during pyrometallurgical operation, while maintaining a protective coating of solidified slag on the outer surface of the outer tube over at least a lower portion of the boom length submerged in the molten slag during operation.
    [010] In one arrangement, the lower end of the inner tube has substantially zero displacement from the lower end of the outer tube. In an alternative arrangement, the lower end of the inner tube is reduced from the lower end of the outer tube as soon as a mixing chamber is defined between those ends.
    [011] The lance may have two tubes, with the helical blade provided if connected on a longitudinal edge to the outer surface of the inner tube and which has its other longitudinal edge adjacent to the inner surface of the outer tube. However, the tube may have at least three tubes, with a shovel connected at one edge to the outer surface of the innermost tube close to the outer tube, with its other edge adjacent to the inner surface of the outer tube. In the latter case, tubes other than the outer tube can be fixed or can move longitudinally in relation to each other.
    [012] For use in a TSL pyrometallurgical operation, the boom is capable of being suspended from an installation that is operable to raise and lower the boom as a whole in relation to the TSL reactor. The facility is able to lower the boom in the TSL reactor to position the lower end of the boom above the surface of a slag phase, on the top of a molten bath in the reactor, to enable the formation of a slag coating on the boom as detailed above. The installation is then able to lower the boom to position the lower end of the boom in the slag phase and to allow submerged injection into the slag. The installation is also capable of raising the reactor boom. In these movements, the boom is moved together. However, the installation is also operable to provide relative longitudinal movement between the inner and outer tubes of the boom. The relative longitudinal movement can be: (a) lowering of assemblies by which the boom as a whole is supported, as the inner tube is raised in relation to the assemblies to keep the lower end of the inner tube at a substantially constant level, or (b) lowering the outer tube in relation to the inner tube, with the inner tube kept stationary.
    [013] In each case, the relative longitudinal movement is most preferably such as to maintain a substantially fixed relative positioning between the lower ends of the outer and inner tubes. Thus, where relative positioning is such as to provide a mixing chamber, the relative longitudinal movement is most preferably such as to maintain the mixing chamber at a substantially fixed, predetermined or selected length. The accuracy with which the predetermined or selected length of the mixing chamber is maintained need only be substantially constant. Thus, the level of the outlet end of the inner tube relative to the lower end of the outer tube is preferably capable of being maintained by the relative movement between the inner and outer tubes as being within ± 25 mm of a required level for the inner tube.
    [014] The boom, or an installation including the boom, can have a drive system by which the relative longitudinal movement between the inner and outer tubes is generated. The drive system can be operable to generate the movement at a predetermined rate, based on an evaluation of an average rate at which the lower end of the outer tube wears out and burns. Thus, if it is known for a given pyrometallurgical operation that the wear and blast is about 100 mm in a four-hour travel cycle, then the drive system can generate relative movement between the inner and outer tubes of 25 mm per hour to maintain substantially constant relative positions for the lower ends of the tubes, such as a substantially constant mixing chamber length.
    [015] The use of a drive system providing such a constant rate of relative motion between the inner and outer tubes can be based on an assumption that stable operating conditions exist resulting in a substantially constant rate at which the bottom end of the outer tube it wears out and it burns. However, the drive can be variable to accommodate a variation in operating conditions. Operating conditions can vary between successive operating cycles, or even within a given cycle, such as due to a change in the degree of a feed material or a fuel and / or reducer, or due to an increase in the volume of the bath, such as due to an increase in the volume of slag and / or a phase of matte or recovered metal. Also, variation can occur between the stages of a given global operation, such as between a white metal blowing stage and a blister copper blowing stage in a two-stage copper mate conversion process conducted in a single reactor. or between successive stages of a three-stage lead recovery process. In addition, the variation may result due to a need to operate at an increased temperature to offset an increase in slag viscosity over the course of a casting operation.
    [016] The drive system can be adjusted manually or by means of a remote control. Alternatively, the drive system can be adjustable in response to a result from at least one sensor capable of monitoring at least one process parameter. For example, the sensor can be adapted to monitor the composition of gases emitted from the reactor, the temperature of the reactor in a suitable location, pressure of the gas above the bath or in a gas outlet duct, the electrical conductivity of a component of the bath, such as the slag phase, the electrical conductivity of the outer tube of the boom, or it can be an optical sensor to make an optical measurement of the actual length of the outer tube along the length of the boom between the inner and outer tubes, or combination sensors to monitor two or more of such parameters.
    [017] In order for the invention to be more readily understood, the description is now directed to the accompanying drawings, in which: • Figure 1 is a schematic representation of a first form of boom for TSL pyrometallurgical operations; • Figure 2 is a schematic representation of a second form of boom for such operations; and • Figure 3 is a view similar to Figure 1, but showing a mechanism for achieving relative movement between tubes in a boom.
    [018] Lance 10 of Figure 1 has two concentric steel tubes of circular cross section. These include an inner tube 12 and an outer tube 14. An annular passageway 16 is defined between tubes 12 and 14. Along the passageway 16 helical blades or deflectors 20 can be used to increase cooling. The or each section of the deflectors 20 is provided by a strip or tape that extends helically around the tube 12, and has an edge welded to the outer surface of the tube 12, while its other edge is closely adjacent to the inner surface of the outer tube. 14. The shape of the deflector may be similar to that of the swirling strips 14 shown in Figure 2 of US Patent 4251271 to Floyd.
    [019] As will be appreciated, the outer tube 14 and the deflectors 20 are shown in a longitudinal section to allow visualization of the inner tube 12 and the deflectors 20.
    [020] The lower end of the inner tube 12 is spaced above the lower end of the outer tube 14 by the distance L. This results in a chamber 18 in the tube extension 14 below the tube 12, which functions as a mixing chamber.
    [021] In the simple illustrated arrangement, air, oxygen or oxygen-enriched air is supplied to passage 16, at the upper end of the boom 10. A suitable fuel with any required conveyor medium is provided at the upper end of the tube 12. The helical deflector in the passage 16 transmits a strong swirling action to the gas supplied to passage 16. Thus, the cooling effect of the gas is increased and the gas and fuel are intimately mixed together in chamber 18 with the mixture capable of being burned to produce effective combustion of the fuel and generation of a strong combustion flame that spreads from the lower end of the boom 10. The ratio of oxygen to fuel can be varied, depending on the power of the reduction or oxidation conditions to be generated at or below the lower end of the boom . Oxygen or fuel not consumed in the combustion flame is injected into the slag of the bath, with any component of the fuel that is not burned being available inside the slag as a reducer. For this reason, it is often indicated in TSL injection which fuel / reducer is injected by the lance. The fuel to reducer ratio in the “fuel / reducer” varies with the oxygen to fuel / reducer ratio at given feed rates for both oxygen and fuel / reducer.
    [022] The boom 10 is held at its upper end to an overhead installation by which the boom is able to be raised or lowered, as a whole, as required. The installation is represented by the mounting device 22, a line 24 and a driver 26. The installation can comprise an overhead crane mounted on rails or winch 26 and a cable 24, with the boom 10 secured to the lower end of cable 24, by a fork 22 or other suitable fixing device.
    [023] The layout for boom 30 shown in figure 2 will be understood from the description in Figure 1. Corresponding parts are referenced as Figure 1, plus 20. The difference in this example is that boom 30 has three concentric tubes, due to a third tube 33 which is positioned between inner and outer tubes 32 and 34. Thus, the passage 36 and the whirlwind 40 are between the tubes 33 and 34. Then the lower end of tube 33 is reduced from the lower end of tube 34 by a distance (ML), where M is the distance between the lower ends of tubes 33 and 34 and L is the distance between the lower ends of tubes 32 and 33. Thus, the mixing chamber 38 has an annular extension around the length of tube 32 which is below the end of tube 33. Also, tubes 33 and 34, and baffles 40 are shown in longitudinal section to enable components within tube 34 to be seen.
    [024] Again, a helical baffle (not shown) is provided. However, in this example, the deflector is mounted on the outer tube surface 33 and extends through the passage 36 as soon as its outer edge is close to the inner tube surface 34.
    [025] In this mode of a boom 30, fuel is supplied at the upper end of tube 32, while gas containing free oxygen is supplied through tube 34, along passage 36 between tubes 33 and 34. Also, feed material , such as concentrate, granular slag or granular matte, more fluxing, can be supplied through the tube 33, along the annular passage 37 between the tube 32 and the tube 33. The gas mixture containing oxygen and feed starts before the end of tube 32 and the gas / feed mixture is then mixed with fuel below the end of tube 32. Again, the fuel is burned in mixing chamber 36, while the feed can at least be preheated, possibly partially fused or reacted. , before being injected into the slag layer of a reactor in which the boom 30 extends.
    [026] As with boom 10, boom 30 is capable of being raised or lowered as a whole by a mounting device 42, line 44 and driver 46. These can be as described for boom 10, or in an alternative way .
    [027] How a technician in the subject would appreciate the indicated feeding arrangements are examples of only variations to the central concept. The injection annulus or passage chosen for the various gases and solids can be varied without affecting the nature of the invention.
    [028] Each of the 10 and 30 booms are capable of being used in a variety of pyrometallurgical operations, for the production of various metals from a primary and secondary feed range, and in the recovery of metals from a waste and effluent range. Spears 10 and 30 consist of concentric tubes and while two or three tubes are usual, there may be at least one additional tube in spears for some special applications. The lances can be used to inject feed, fuel and process gases into a molten bath.
    [029] In all cases, the boom tubes are of a fixed operating length below the ceiling of a TSL reactor where the boom is to be used. More specifically, the position of the boom is in relation to the bath, and the overall length of the boom is typically long enough to reach a fixed distance from the hearth. However, each of the lances 10 and 30 is adjustable for the purpose of maintaining a substantially constant length for the respective mixing chamber 16 and 36. In the case of the lance 10, the arrangement allows the length L to be kept substantially constant, despite of the wear and blast of the lower end of tube 14 that would otherwise reduce the length L. Similarly, on the boom 30, the arrangement allows each of the lengths L and M to be kept substantially constant, despite the wear and blast of the end bottom of tube 34 that would otherwise reduce the lengths L and M. Thus, the length L in boom 10, and lengths L and M in the case of boom 30 can be kept in adjustments providing optimal conditions for the injection of submerged boom of top of a required pyrometallurgical operation and for required operating conditions.
    [030] In the case of boom 30, passages 36 and 37 allow different materials to be isolated from each other until the materials discharge into chamber 38 and mix. The boom may have at least one additional tube, resulting in an additional passage through which additional material can pass. The at least one additional tube can have a reduced distance corresponding to L or M or a different distance from L and M. Also, on the boom 30, each of L and M, and the reduced distance of any additional tube, can be adjustable to compensate for a required change in operating conditions.
    [031] Lances 10 and 30 are shown to have a D drive system in any of a variety of different ways. While each D system is shown to be separate from the respective boom 10, 30 and operably connected by a drive line or link 42, the D drive system can be mounted on boom 10, 30, in an installation from which the boom is suspended and capable of being together raised or lowered, or in some adjacent structure, depending on the nature of system D. Thus, line or connection 42 can be a direct mechanical transmission by which a tube is able to be moved longitudinally in relation to another in order to compensate for the wear or late blast of the lower end of the outer tube. Alternatively, the line or connection 42 may denote action of system D through a coupling to an installation by which the boom 10, 30 is suspended. In each case, the D system can be operable on a time-controlled adjustment basis, to transmit a fixed rate of relative movement between boom tubes 10, 30. Alternatively, the drive can be operable in response to a signal generated by a control unit C. The arrangement can be such that the signal is adjustable in response to a result of a sensor S that is monitored by the control unit C. The sensor can be positioned and operable to provide a result indicating variation in length L and M caused by the wear and burning of the lower end of the outer sleeve of the boom 10 and 30.
    [032] The drive system D and the sensor S can be operable or of a nature detailed earlier in this document.
    [033] Figure 3 shows a boom 50 similar to the one in Figure 1, and corresponding parts have the same reference numbers, plus 40. An installation by which boom 50 is able to be raised or lowered in relation to a molten slag both are not shown. However, a mechanical arrangement 64 for providing relative longitudinal movement between the inner tube 52 and the outer tube 54 is shown. Also, Figure 3 shows a seal 65 mounted on the upper end of the boom 50. The seal 65 substantially prevents the gas from discharging at the upper end of the boom 50. The seal 65 substantially prevents the gas from discharging at the upper end of the boom 50. , while allowing relative longitudinal movement between tubes 52 and 54, and sliding, sealing contact with tube 54 or tube 52, respectively. The arrangement is such that the supply of pressurized gas to the inlet connector 54a of tube 54 results in the gas passing down the passage 56 between tubes 52 and 54 to discharge at the lower end of the boom 50.
    [034] Arrangement 64 to enable relative longitudinal movement between tubes 52 and 54 includes a flange, or flanges, 66 mounted on the top end of tube 54. Also, the top end of tube 52 protrudes above the top end of tube 54 , and arrangement 64 includes a flange or flanges, 67 at the upper end of tube 52, below an inlet connector 52a for tube 52, but above the flange, or flanges 66 at tube 54. To provide longitudinal movement between the tubes 52 and 54, arrangement 64 includes lifting screws 68 that act between the flanges, 66 and 67. Each screw 68 has a threaded shaft 69 fixed to the flange, or flanges, 66 and which passes upwardly through the flange, or flanges, 67, and a thread 70 engaged at the top end of its axis 69. Thus, the rotation of threads 70 in one direction drags the axes 69 upwardly and thus pushes tube 54 upwardly relative to tube 52, while the rotation of threads 70 in the direction o position allows the longitudinal reverse movement of the axes 69, and of the tube 54 in relation to the tube 52. Thus, the length L of the mixing chamber 58 is able to be kept substantially constant, despite the wear or re-burning of the lower end of the tube outlet 54. Alternatively, the length L is capable of being adjusted from an adjustment required for a pyrometallurgical operation to a different length required for another pyrometallurgical operation.
    [035] Although not shown, the boom 50 preferably has a drive system that includes and, when required, operates arrangement 64. Thus, as in each of Figures 1 and 2, a sensor 5 can be provided to provide a signal of result indicative of the relative longitudinal position of tubes 52 and 54 with an operable actuator to rotate the threads 70, as required, to vary those positions. The result of sensor S can be passed to a control unit C, with the control unit providing a result signal to drive the actuator.
    [036] The lance of the present invention is capable of providing numerous benefits over conventional fixed tube top submerged lances. These benefits include: (a) In especially difficult processes where boom wear is unavoidable, the desired mixing chamber length can be maintained for a longer period than with a typical fixed boom to control the partial pressure of oxygen in a band narrow for the particular application. This minimizes the frequency of boom changes and thus allows less disruption to processing. (b) A variable mixing chamber length allows the mixing chamber to be customized for the specific fuel used over time and to be adjusted if there is a variation in the fuel source, including secondary sources such as plastics. (c) A variable mixing chamber length allows complete control of the fuel and air / oxygen mixture depending on the desired discharge requirements at the outlet end of the boom in the molten slag bath. (d) A variable mixing chamber length can also prove to be useful for controlling oven conditions when the boom is positioned above the bath during waiting or stopped periods.
    [037] Finally, it is to be understood that various alterations, modifications and / or additions can be introduced in the constructions and dispositions of parts previously described without departing from the spirit or scope of the invention.
    权利要求:
    Claims (14)
    [0001]
    1. A lance (10, 30, 50) to conduct a pyrometallurgical injection operation (10, 30, 50) submerged top (TSL), whose lance (10, 30, 50) has a plurality of concentric tubes including inner (12, 32, 52) and outer (14, 34, 54) and, optionally, at least one tube between the inner (12, 32, 52) and outer (14, 34, 54) tubes; the lower end of the inner (12, 32, 52) or the inner tube (12, 32, 52) and at least one outermost tube nearby is adjusted to a required level in relation to the lower end of the outer tube (14, 34, 54) required for the pyrometallurgical operation; interior (12, 32, 52) and where the lance (10, 30, 50) defines at least two passages, including an annular passage (16, 36, 56) defined between two of the tubes and a passage (17, 37, 57) defined by the inner tube (12, 32, 52), through which the lance (10, 30, 50) allows fuel / reducer and oxygen-containing gas to be injected separately through the lance (10, 30, 50) as well as mixed at the outlet ends of the inner (12, 32, 52) and outer (14, 34, 54) tubes and generate a combustion zone within a slag phase during submerged top injection during the pyrometallurgical operation, at the same time maintains a protective coating of solidified slag on the outer surface of the outer tube (14, 34, 54) over at least a lower part of the boom length (10, 30, 50) submerged in the molten slag during operation, characterized by the fact that that the lower end of the inner tube (12, 32, 52) is reduced from the lower end of the tube exterior (14, 34, 54) as soon as a mixing chamber (18, 38, 58) is defined between those ends; and the boom (10, 30, 50) is adapted to suspend an installation (22, 24, 26) which is operable to raise or lower the boom (10, 30, 50) as a whole in relation to a TSL reactor , and allows the relative longitudinal movement between the inner (12, 32, 52) and outer (14, 34, 54) tubes; that the relative positions of the inner (12, 32, 52) and outer (14, 34, 54) tubes are longitudinally adjustable to enable the required adjusted level or length of a mixing chamber (18, 38, 58) between the lower ends of the inner (12, 32, 52) and outer (14, 34, 54) tubes to be maintained for a period of use to compensate for wear and re-burning of the lower end of the outer tube; and that the lance (10, 30, 50) also includes a drive system by which the relative longitudinal movement between the inner (12, 32, 52) and outer (14, 34, 54) tubes is generated.
    [0002]
    2. The lance (10, 30, 50) according to claim 1, characterized by the fact that a helical paddle or flow shaping device (20, 40) is provided between the outer tube (14, 34, 54) and the inner tube (12, 32, 52) or, where the boom (10, 30, 50) has at least three concentric tubes, between the outer tube (14, 34, 54) or an inner tube (12, 32, 52) next tube between the outer tube (14, 34, 54) and the inner tube (12, 32, 52).
    [0003]
    3. The boom (10, 30, 50) according to claim 2, characterized by the fact that the boom (10, 30, 50) has two tubes, with a paddle (20, 40) connected at one of the longitudinal edges opposite the outer surface of the inner tube (12, 32, 52) and its other longitudinal edge adjacent to the inner surface of the outer tube (14, 34, 54).
    [0004]
    4. The boom (10, 30, 50) according to claim 2, characterized by the fact that the boom (10, 30, 50) has at least three tubes, with a paddle connected to one of the longitudinal edges opposite the surface outermost tube (12, 32, 52) close to the outer tube (14, 34, 54), with its other longitudinal edge adjacent to the inner surface of the outer tube (14, 34, 54).
    [0005]
    The lance (10, 30, 50) according to claim 4, characterized in that the tubes other than the outer tube (14, 34, 54) are longitudinally fixed in relation to each other.
    [0006]
    The boom (10, 30, 50) according to claim 4, characterized in that the tubes other than the outer tube (14, 34, 54) are longitudinally movable in relation to each other.
    [0007]
    7. The boom (10, 30, 50) according to any of the preceding claims, characterized by the fact that the boom (10, 30, 50) allows relative longitudinal movement between the inner tubes (12, 32, 52) and exterior (14, 34, 54) by the installation (22, 24, 26) that lowers an assembly by which the boom (10, 30, 50) as a whole is supported as the inner tube (12, 32, 52 ) is high in relation to the assemblies (22).
    [0008]
    8. The boom (10, 30, 50) according to any one of the preceding claims, characterized by the fact that the boom (10, 30, 50) allows relative longitudinal movement between the inner tubes (12, 32, 52) and outer (14, 34, 54) by the inner tube (12, 32, 52) which is lowered while the outer tube (14, 34, 54) is kept stationary.
    [0009]
    The lance (10, 30, 50) according to any one of the preceding claims, characterized by the fact that the level of the outlet end of the inner tube (12, 32, 52) in relation to the lower end of the outer tube ( 14, 34, 54) can be maintained by the relative movement between the inner (12, 32, 52) and outer (14, 34, 54) tubes as being within 25 mm of a required level for the inner tube (12, 32 , 52).
    [0010]
    10. The boom (10, 30, 50) according to any one of the preceding claims, characterized by the fact that it also includes a drive system by which the relative longitudinal movement between the inner (12, 32, 52) and outer tubes (14, 34, 54) is generated.
    [0011]
    11. The boom (10, 30, 50) according to any of the preceding claims, characterized by the fact that the drive is variable to accommodate a variation in operating conditions in which the boom (10, 30, 50) is used .
    [0012]
    The lance (10, 30, 50) according to any one of claims 1 to 11, characterized by the fact that the drive system is manually adjustable.
    [0013]
    13. The lance (10, 30, 50) according to any one of claims 1 to 11, characterized by the fact that the drive system (D) is adjustable by remote control.
    [0014]
    14. The lance (10, 30, 50) of any of the preceding claims, characterized by the fact that the lance (10, 30, 50) includes or has an associated sensor capable of monitoring at least one parameter of a pyrometallurgical operation and to provide a result by which the drive system (D) is adjustable.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112013033631B1|2021-03-16|top submerged injection lances
    EP2786083B1|2016-05-18|Fluid cooled lances for top submerged injection
    EP2751297B1|2017-03-01|Lances for top submerged injection
    EP3058109B1|2017-03-22|Top submerged injection lance for enhanced submerged combustion
    NZ624378B2|2015-09-01|Fluid cooled lances for top submerged injection
    同族专利:
    公开号 | 公开日
    EP2726803A4|2015-03-11|
    AU2012276276A1|2013-05-09|
    CL2013003750A1|2014-08-01|
    CA2838855A1|2013-01-03|
    JP2014522954A|2014-09-08|
    US9528766B2|2016-12-27|
    WO2013000017A1|2013-01-03|
    ES2629319T3|2017-08-08|
    EA201391809A1|2014-06-30|
    KR20140029495A|2014-03-10|
    CN103620333A|2014-03-05|
    BR112013033631A2|2018-06-26|
    EP2726803B1|2017-05-17|
    CN103620333B|2016-06-08|
    JP5800990B2|2015-10-28|
    AU2012276276B2|2015-01-22|
    EP2726803A1|2014-05-07|
    KR101662376B1|2016-10-04|
    CA2838855C|2016-02-02|
    PL2726803T3|2017-09-29|
    MX2013014912A|2014-02-19|
    PE20141257A1|2014-10-04|
    US20140151942A1|2014-06-05|
    EA026257B1|2017-03-31|
    ZA201309268B|2014-08-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB876687A|1959-06-24|1961-09-06|Wellman Smith Owen Eng Co Ltd|An improved lance for blowing fluids|
    BE606370A|1960-07-20|1961-11-16|Salzgitter Huettenwerk Ag|Lance for the superficial or internal insufflation of gaseous oxygen and solids on or in metal baths, mainly iron baths.|
    US3223398A|1963-02-20|1965-12-14|Kaiser Ind Corp|Lance for use in a basic oxygen conversion process|
    US3269829A|1963-09-24|1966-08-30|United States Steel Corp|Method and apparatus for introducing steam and oxygen into a bath of molten steel|
    BE648779A|1963-10-23|1964-10-01|
    FR84791E|1963-11-25|1965-04-16|Siderurgie Fse Inst Rech|Adjustable insufflation lance for fine particles in suspension|
    GB1130845A|1966-04-13|1968-10-16|Noranda Mines Ltd|Method and apparatus for controlling the temperature of metal lances in molten baths|
    US3411716A|1966-05-11|1968-11-19|United States Steel Corp|Oxygen lance for steelmaking furnaces|
    US3488044A|1967-05-01|1970-01-06|Nat Steel Corp|Apparatus for refining metal|
    US3876190A|1969-06-25|1975-04-08|Commw Ind Gases|Method and apparatus for feeding particulate materials to furnaces and the like|
    US3730505A|1970-07-01|1973-05-01|Centro Speriment Metallurg|Double delivery lance for refining the steel in the converter processes|
    FR2131674A5|1971-04-10|1972-11-10|Messer Griesheim Gmbh|
    US3828850A|1973-07-12|1974-08-13|Black Sivalls & Bryson Inc|High temperature material introduction apparatus|
    US3889933A|1974-02-28|1975-06-17|Int Nickel Canada|Metallurgical lance|
    BE849582R|1976-01-07|1977-04-15|Rene Desaar|POCKET CAST IRON DESULFURATION LANCE|
    US4023676A|1976-09-20|1977-05-17|Armco Steel Corporation|Lance structure and method for oxygen refining of molten metal|
    GB1599366A|1977-05-09|1981-09-30|Commw Scient Ind Res Org|Submerged injection of gas into liquid pyro-metallurgical bath|
    JPS5535449B2|1977-12-15|1980-09-13|
    FR2432552B1|1978-08-03|1982-10-01|Siderurgie Fse Inst Rech|
    ZA786675B|1978-11-28|1980-02-27|W Bleloch|Apparatus for the production of steel and iron alloys|
    US4326701A|1979-09-29|1982-04-27|Kaiser Steel Corporation|Lance apparatus|
    FR2496699B1|1980-12-22|1985-06-21|Siderurgie Fse Inst Rech|BLOWING NOZZLE FOR OXIDIZING GAS, ESPECIALLY OXYGEN, FOR THE TREATMENT OF FUSED METALS|
    US4479442A|1981-12-23|1984-10-30|Riley Stoker Corporation|Venturi burner nozzle for pulverized coal|
    JPS58185707A|1982-04-23|1983-10-29|Sumitomo Metal Ind Ltd|Refining method of steel|
    JPH0613314B2|1985-07-31|1994-02-23|三菱重工業株式会社|Vertical vertical cylindrical tank support structure for ships|
    IN178636B|1989-09-29|1997-05-24|Ausmelt Ltd|
    AT154950T|1991-09-20|1997-07-15|Ausmelt Ltd|METHOD FOR PRODUCING IRON|
    IN181041B|1991-09-20|1998-04-18|Ausmelt Ltd|
    US5199867A|1991-09-30|1993-04-06|The Boc Group, Inc.|Fuel-burner apparatus and method for use in a furnace|
    DE4238020C2|1992-11-11|1994-08-11|Kct Tech Gmbh|Procedure for the operation of a multimedia nozzle and the nozzle system|
    AU707438B2|1993-04-06|1999-07-08|Ausmelt Limited|Smelting of carbon-containing material|
    US5431709A|1993-09-21|1995-07-11|Gas Research Institute|Accretion controlling tuyere|
    US5615626A|1994-10-05|1997-04-01|Ausmelt Limited|Processing of municipal and other wastes|
    JP3348580B2|1995-11-29|2002-11-20|三菱マテリアル株式会社|Solid-air blow smelting lance|
    US5680766A|1996-01-02|1997-10-28|General Electric Company|Dual fuel mixer for gas turbine combustor|
    AUPO095996A0|1996-07-12|1996-08-01|Technological Resources Pty Limited|A top injection lance|
    JPH10170166A|1996-12-03|1998-06-26|Mitsubishi Materials Corp|Method and system for managing lance of refining furnace|
    DE19817590C1|1998-04-20|1999-03-18|Technometal Ges Fuer Metalltec|Combination lance for treatment of metallurgical melts|
    JP3666301B2|1999-05-21|2005-06-29|Ｊｆｅスチール株式会社|Compound lance for vacuum degassing tank and method of using the same|
    JP4032582B2|1999-11-11|2008-01-16|三菱マテリアル株式会社|Lance management method and management device for smelting furnace|
    AUPQ695000A0|2000-04-17|2000-05-11|Technological Resources Pty Limited|A direct smelting process and apparatus|
    AUPQ783100A0|2000-05-30|2000-06-22|Technological Resources Pty Limited|Apparatus for injecting solid particulate material into a vessel|
    GB0209364D0|2002-04-24|2002-06-05|Boc Group Plc|Injection of particulate material into liquid|
    GB0209365D0|2002-04-24|2002-06-05|Boc Group Plc|Injection of solids into liquids|
    WO2006105578A1|2004-10-18|2006-10-12|Technological Resources Pty Limited|Apparatus for injecting solid particulate material into a vessel|
    KR101021349B1|2006-02-27|2011-03-14|제이에프이 스틸 가부시키가이샤|Injection lance for refining, injection lance equipment for refining, hot-metal desiliconization process, and hot-metal pretreatment process|
    JP2009139081A|2007-11-13|2009-06-25|Jfe Steel Corp|Burner lance for charging powdery and granular matter of smelting reduction furnace and manufacturing method of molten metal by smelting reduction|
    AU2012276276B2|2011-06-30|2015-01-22|Outotec Oyj|Top submerged injecting lances|
    KR101616212B1|2011-09-02|2016-04-27|오토텍 오와이제이|Lances for top submerged injection|AU2012276276B2|2011-06-30|2015-01-22|Outotec Oyj|Top submerged injecting lances|
    KR101616212B1|2011-09-02|2016-04-27|오토텍 오와이제이|Lances for top submerged injection|
    PE20141641A1|2011-11-30|2014-11-18|Outotec Oyj|REFRIGERATED FLUID LANES FOR TOP SUBMERGED INJECTION|
    AU2013204818B2|2013-04-12|2015-02-19|Outotec Oyj|Molten bath temperature measurement for a top submerged lance injection installation|
    WO2015056142A1|2013-10-16|2015-04-23|OutotecOy|Top submerged injection lance for enhanced heat transfer|
    WO2015056143A1|2013-10-16|2015-04-23|OutotecOy|Top submerged injection lance for enhanced submerged combustion|
    EP3204707B1|2014-10-10|2019-03-27|OutotecOy|Combination of a pyrometallurgical furnace and a weir module|
    AU2015370483B2|2014-12-24|2019-05-02|OutotecOy|A system and method for collecting and analysing data relating to an operating condition in a top-submerged lancing injector reactor system|
    PE20171020A1|2014-12-24|2017-07-17|OutotecOy|DETECTION DEVICE FOR DETERMINING AN OPERATING CONDITION IN A CASTED BATH OF A REACTOR SYSTEM WITH A SUBMERGIC RELEASED INJECTOR FROM ABOVE|
    KR101651221B1|2015-04-21|2016-08-25|충남대학교산학협력단|Lance for prevent pulling flame|
    WO2017098446A1|2015-12-09|2017-06-15|Tenova South AfricaLtd|Method of operating a top submerged lance furnace|
    DE102016123717A1|2016-12-07|2018-06-07|R. Weiss Verpackungstechnik Gmbh & Co. Kg|Output device for baked goods|
    CN110198634A|2016-12-07|2019-09-03|R魏斯包装技术股份两合公司|For storing, baking and exporting the device of bakery|
    CN112474093A|2020-11-23|2021-03-12|中国科学技术大学|Jet flow range extending method and device based on composite flow cooperation|
    法律状态:
    2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-10-29| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-07-07| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]|
    2021-01-05| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-03-16| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 27/06/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    AU2011902598|2011-06-30|
    AU2011902598A|AU2011902598A0|2011-06-30|Top Submerged Injecting Lances|
    PCT/AU2012/000751|WO2013000017A1|2011-06-30|2012-06-27|Top submerged injecting lances|
    [返回顶部]