EP3438590B1 - Lance for side-submerged combustion smelting metallurgical furnace and metallurgical furnace having lance - Google Patents

Lance for side-submerged combustion smelting metallurgical furnace and metallurgical furnace having lance Download PDF

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Publication number
EP3438590B1
EP3438590B1 EP17773006.6A EP17773006A EP3438590B1 EP 3438590 B1 EP3438590 B1 EP 3438590B1 EP 17773006 A EP17773006 A EP 17773006A EP 3438590 B1 EP3438590 B1 EP 3438590B1
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EP
European Patent Office
Prior art keywords
injection pipe
self
lance
locking member
connecting channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17773006.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3438590A4 (en
EP3438590A1 (en
Inventor
Shuangjie FENG
Dong Li
Dawei Cui
Zhenmin Zhang
Kefei CAO
Yi Lin
Xuegang Chen
Liang Xu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China ENFI Engineering Corp
Original Assignee
China ENFI Engineering Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201610203843.0A external-priority patent/CN105737614B/zh
Priority claimed from CN201620270953.4U external-priority patent/CN205642013U/zh
Application filed by China ENFI Engineering Corp filed Critical China ENFI Engineering Corp
Priority to PL17773006T priority Critical patent/PL3438590T3/pl
Publication of EP3438590A1 publication Critical patent/EP3438590A1/en
Publication of EP3438590A4 publication Critical patent/EP3438590A4/en
Application granted granted Critical
Publication of EP3438590B1 publication Critical patent/EP3438590B1/en
Active legal-status Critical Current
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/48—Bottoms or tuyéres of converters
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B13/00—Obtaining lead
    • C22B13/02—Obtaining lead by dry processes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0026—Pyrometallurgy
    • C22B15/0028—Smelting or converting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/18—Charging particulate material using a fluid carrier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/162—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel
    • F27D2003/163—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel the fluid being an oxidant
    • F27D2003/164—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/168—Introducing a fluid jet or current into the charge through a lance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/168—Introducing a fluid jet or current into the charge through a lance
    • F27D2003/169—Construction of the lance, e.g. lances for injecting particles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • F27D2099/0036—Heating elements or systems using burners immersed in the charge

Definitions

  • the present application relates to a technical field of metallurgy, more particularly to a lance for a side-submerged combustion smelting metallurgical furnace, and a metallurgical furnace having the lance.
  • a submerged side-blowing molten bath smelting process is widely used in lead smelting, high lead slag reduction, regenerative lead smelting, slag fuming, and copper smelting.
  • the submerged side-blowing molten bath smelting process is to inject air, oxygen-enriched air and fuel into the molten bath through a tuyere or a lance on both sides of a furnace body, and the injected gas stirs the molten bath to accelerate heat transfer and chemical reaction in the molten bath.
  • molten bath smelting of exothermic materials it is only necessary to feed air or oxygen-enriched air from a side-blowing tuyere; for molten bath smelting of non-exothermic materials, oxygen-enriched air and fuel are supplied by the lance for the side-submerged combustion smelting metallurgical furnace, in order to achieve submerged combustion, and the released heat is directly absorbed by the melt, the heating speed is fast, the heat utilization rate is high, and a molten bath temperature can be quickly and effectively adjusted.
  • a side-blowing furnace that uses the lance for the side-submerged combustion smelting metallurgical furnace to feed fuel into the molten bath for submerged combustion has the following defects.
  • US4711433A discloses a copper converter.
  • the copper converter includes a converter body; a plurality of tuyeres disposed to the converter body, each tuyere having an outer end portion; a first concentrate blowing pipe assembly disposed at least one of said tuyeres, the concentrate blowing pipe assembly including an introducing pipe inserted into the at least one tuyere; a blowing unit, connected to the concentrate blowing pipe assembly, for blowing a material including a concentrate through the introducing pipe into the converter; an air supplying unit, disposed to the tuyeres, for supplying pressurized air to the tuyeres; and formations, disposed to said outer end of each tuyere and said concentrate blowing pipe assembly, for detachably interlocking the introducing pipe with the at least one tuyere.
  • the multifunctional air nozzle device for the oxygen-enriched side-blown smelting furnace comprises an air nozzle head and an air duct base connected at the back end of the air nozzle head, wherein an air nozzle sleeve is pre-buried into the inner wall of a through hole in the axial center of the air nozzle head; a cooling copper tube is buried on the periphery of the air nozzle sleeve; a horizontal hole and an inclined hole communicated with the upper side of the horizontal hole are formed in the air duct base; the horizontal hole and the air nozzle sleeve share the same axial central line; an inner spray gun which can be inserted into the air nozzle sleeve and is provided with various annular air ducts is arranged inside the horizontal hole.
  • the multifunctional air nozzle device can be matched with oxygen-enriched side-blown smelting furnaces for different raw materials; oxygen-enriched air or oxygen-enriched air and fuel gas or oxygen-enriched air and pulverized coal can be sprayed into the furnace, so that on one hand, a heat source is supplied to the smelting furnaces, on the other hand, the reaction atmosphere can be controlled to meet all kinds of chemical reactions, and accordingly the multifunctional air nozzle device is universal and can save the investment cost; the various annular air ducts of the inner spray gun can uniformly mix fuel and the oxygen-enriched air, so that the combustion efficiency is improved.
  • US3608881 relates to a tuyere apparatus for using liquid fuel in the fuming process. From pipe union the fuel comes at a pressure of 15 atmospheres and through stem it enters nozzle in which it is atomized.
  • the nozzle is formed on a stem having an enlarged part accommodated in a bore in the part to which pipe union is connected. The part is locked in place by a nut and is provided with a diametral passage through which the fuel enters from annular passage after being received from bare of pipe union .
  • the bore is perpendicular to nozzle.
  • CN101929802A discloses a side-blown spray gun which comprises a central tube, a central sleeve sleeved on the central tube, a middle tube and an outer sleeve sleeved outside the middle tube, wherein the outer diameter of the rear part of the central tube is larger than the outer diameter of the front part thereof, and a sleeve groove is formed on the outer wall of the rear part thereof; a combustion-supporting gas chamber is arranged between the front part of the central sleeve and the middle tube, the rear part of the central sleeve is matched with the middle tube so that a combustion-supporting gas injection channel is formed by the restriction of the inner wall of the central tube and the sleeve groove, the outer diameter of the rear part of the middle tube is larger than the outer diameter of the front part thereof, and a middle tube groove can be formed on the outer wall of the rear part thereof; and a cooling medium chamber is formed between the front part of the middle tube and the outer sle
  • the present disclosure aims to solve at least one of technical problems in the related art to a certain extent. Accordingly, the present disclosure provides a lance for a side-submerged combustion smelting metallurgical furnace.
  • the lance can facilitate in-time unclogging of an inner injection pipe, obviate the need to lower a liquid level of the molten bath during the detachment of the inner injection pipe, and ensure normal operation of the metallurgical furnace.
  • the present disclosure further provides a metallurgical furnace having the lance.
  • the lance according to the invention includes: an outer injection pipe internally defining a combustion-supporting gas inlet, a combustion-supporting gas outlet, and an insertion port; an insertion self-locking member having a self-locking and closing function, and mounted at the insertion port of the outer injection pipe; an inner injection pipe having a medium inlet, a medium injection port, and a medium clearing port, and detachably inserted into the insertion self-locking member, in which an end of the inner injection pipe provided with the medium injection port extends into the outer injection pipe through the insertion port, and when the inner injection pipe is disengaged from the insertion self-locking member, the insertion self-locking member is self-locked and closed to block off the insertion port; and a blocking member mounted to the inner injection pipe to open or close the medium clearing port.
  • the lance according to the invention not only facilitates clearing of pulverized coal clogging the inner injection pipe, thus allowing the inner injection pipe to be unclogged in time, but also obviates the need to lower the liquid level of the molten bath when the inner injection pipe is detached for maintenance, thereby effectively ensuring normal operation of the metallurgical furnace and increasing yield.
  • the insertion self-locking member has a first end detachably connected with the inner injection pipe by means of a flange, and a second end welded with the outer injection pipe.
  • the insertion self-locking member includes: a first body internally defining a connecting channel, through which the inner injection pipe passes and is communicated with the insertion port; and a first self-locking member provided within the first body and movable between a closed position where the connecting channel is closed and an open position where the connecting channel is open.
  • the first body further defines a sliding slot communicated with the connecting channel; when the inner injection pipe is inserted into the connecting channel, the first self-locking member is pushed into the sliding slot by the inner injection pipe; when the inner injection pipe is disengaged from the connecting channel, the first self-locking member falls into the connecting channel by gravity.
  • a lower end of the sliding slot is communicated with the connecting channel, and a length direction of the sliding slot is inclined with respect to a length direction of the connecting channel.
  • the sliding slot extends obliquely from bottom to top towards the outer injection pipe.
  • the first self-locking member is a ball.
  • the blocking member includes: a second body internally defining an unclogging channel communicated with the medium clearing port; a second self-locking member provided within the second body and movable between a closed position where the unclogging channel is closed and an open position where the unclogging channel is open; and a plug, configured to stop the second self-locking member from coming out of the second body, detachably mounted to the second body, and provided with an unclogging port in communication with the unclogging channel.
  • the second body further defines a guide slot communicated with the unclogging channel, the guide slot has a lower end communicated with the unclogging channel, and the guide slot extends obliquely from bottom to top towards the outer injection pipe with respect to a length direction of the connecting channel.
  • the metallurgical furnace according to the invention includes the above lance for the side-submerged combustion smelting metallurgical furnace.
  • a lance 100 for a side-submerged combustion smelting metallurgical furnace according to embodiments of the present disclosure, and a metallurgical furnace 1000 having the lance will be described below with reference to Figs. 1 to 4 .
  • the lance 100 includes an outer injection pipe 10, an insertion self-locking member 20, an inner injection pipe 30, and a blocking member 40.
  • the outer injection pipe 10 internally has a combustion-supporting gas inlet 11, a combustion-supporting gas outlet 12, and an insertion port 13.
  • the insertion self-locking member has a self-locking and closing function, and the insertion self-locking member 20 is mounted at the insertion port 13 of the outer injection pipe 10.
  • the inner injection pipe 30 has a medium inlet 31, a medium injection port 32, and a medium clearing port 33.
  • the inner injection pipe 30 is detachably inserted into the insertion self-locking member 20, and an end of the inner injection pipe 30 provided with the medium injection port 32 extends into the outer injection pipe 10 through the insertion port 13 (see Fig. 2 ).
  • the insertion self-locking member 20 When the inner injection pipe 30 is disengaged from the insertion self-locking member 20, the insertion self-locking member 20 is self-locked and closed to block off the insertion port 13.
  • the blocking member 40 is mounted to the inner injection pipe 30 to open or close the medium clearing port 33.
  • the insertion port 13 for the insertion self-locking member 20 is in an open state, and the medium clearing port 33 for the blocking member 40 is in a closed state.
  • a combustion-supporting gas e.g. oxygen-enriched air
  • enters the outer injection pipe 10 from the combustion-supporting gas inlet 11 of the outer injection pipe 10 flows in a gap between the outer injection pipe 10 and the inner injection pipe 30, and finally is discharged via the combustion-supporting gas outlet 12.
  • Pulverized coal and boosting wind enters the inner injection pipe 30 via the medium inlet 31, and the pulverized coal flows in the inner injection pipe 30 under the action of the boosting wind and is finally ejected through the medium injection port 32.
  • an unclogging tool such as a drill rod
  • the inner injection pipe 30 can be quickly unclogged to ensure smooth delivery of the pulverized coal, without affecting the normal operation of the metallurgical furnace.
  • the inner injection pipe 30 and the blocking member 40 are integrally removed from the insertion self-locking member 20, and pulled out from the outer injection pipe 10 and the insertion self-locking member 20, the insertion self-locking member 20 is self-locked and closed, and a connecting channel 211 of the insertion self-locking member 20 is blocked to effectively prevent loss of the combustion-supporting gas in the outer injection pipe 10.
  • the combustion-supporting gas continues to be supplied at the combustion-supporting gas inlet 11, with an increased volume of the combustion-supporting gas, in which case the combustion-supporting gas flows through the entire interior of outer injection pipe 10, a flow space becomes large, and the increased volume of the combustion-supporting gas is able to keep the combustion-supporting gas ejected at a stable speed, thereby effectively preventing the outer injection pipe 10 from being clogged due to a backflow of liquid in a molten bath.
  • the inner injection pipe 30 is inserted into the insertion self-locking member 20 and the outer injection pipe 10, and the inner injection pipe 30 opens the self-locking device and extends into the outer injection pipe 10, in which case the volume of the combustion-supporting gas is reduced, and the supply of the medium (the pulverized coal and the boosting wind) is restored, and the lance returns to a normal operation state.
  • the medium the pulverized coal and the boosting wind
  • the lance 100 is not only convenient to clear the pulverized coal clogging the inner injection pipe 30 so as to unclog the inner injection pipe 30 in time, but also enables the inner injection pipe 30 to be independently disassembled and replaced with no need to lower the liquid level of the molten bath, thereby effectively ensuring the normal operation of the metallurgical furnace and increasing yield.
  • the combustion-supporting gas within the outer injection pipe 10 can cool the inner injection pipe 30 and the like to a certain extent because of its relatively fast flow speed while playing a combustion-supporting role, which not only improves the service life of the lance, but also reduces burning damage of a furnace wall of the metallurgical furnace.
  • a first end of the insertion self-locking member 20 is detachably connected with a second end of the inner injection pipe 30 by means of a flange, and a second end of the insertion self-locking member 20 is welded with the outer injection pipe 10.
  • a first end of the inner injection pipe 30 is screwed to the blocking member 40 with an elastic gasket therebetween.
  • the insertion self-locking member 20 includes a first body 21 and a first self-locking member 22.
  • the first body 21 internally defines the connecting channel 211, for the inner injection pipe 30 to pass through and communicated with the insertion port 13.
  • the first self-locking member 22 is provided in the first body 21 and movable between a closed position where the connecting channel 211 is closed and an open position where the connecting channel 211 is open.
  • the first self-locking member 22 when the inner injection pipe 30 extends into the insertion port 13 and passes through the connecting channel 211, the first self-locking member 22 is in the open position to ensure the normal operation of the inner injection pipe 30 and the outer injection pipe 10; when the inner injection pipe 30 is disengaged from the connecting channel 211, the first self-locking member 22 is in the closed position to avoid the loss of the combustion-supporting gas in the outer injection pipe 10.
  • the first body 21 also defines a sliding slot 212 communicated with the connecting channel 211.
  • the first self-locking member 22 is pushed into the sliding slot 212 by the inner injection pipe 30; when the inner injection pipe 30 is disengaged from the connecting channel 211, the first self-locking member 22 falls into the connecting channel 211 by gravity.
  • the first self-locking member 22 can be moved and switched between the open position and the closed position, and without external assistance, the first self-locking member 22 can realize the self-locking of the insertion self-locking member 20 by gravity.
  • the structure of the insertion self-locking member 20 is simple and compact with relatively low cost.
  • a lower end of the sliding slot 212 is communicated with the connecting channel 211, and a length direction of the sliding slot 212 is inclined with respect to a length direction of the connecting channel 211.
  • the lower end of the sliding slot 212 being communicated with the connecting channel 211 means that the sliding slot 212 is always above the connecting channel 211 when the lance 100 is applied to the metallurgical furnace 1000.
  • the first self-locking member 22 can fall into the connecting channel 211 by gravity and block the connecting channel 211 when the outer injection pipe 10 is fixed and the inner injection pipe 30 is pulled out.
  • the sliding slot 212 extends obliquely towards the outer injection pipe 10 from bottom to top.
  • the first self-locking member 22 can be pushed into the sliding slot 212 more smoothly, and the jamming of the first self-locking member 22 when moving from the closed position to the open position is avoided.
  • the first self-locking member 22 is a ball.
  • a cross section of the sliding slot 212 and a cross section of the connecting channel 211 are both circular, a diameter of the ball is consistent with a diameter of the sliding slot 212, and the diameter of the ball is larger than the diameter of the connecting channel 211.
  • the blocking member 40 includes a second body 41, a second self-locking member 42 and a plug 43.
  • the second body 41 internally defines an unclogging channel 411 communicated with the medium clearing port 33, and the second self-locking member 42 is provided within the second body 41 and movable between a closed position where the unclogging channel 411 is closed and an open position where the unclogging channel 411 is open.
  • the plug 43 is used to stop the second self-locking member 42 from coming out of the second body 41, and the plug 43 is detachably mounted to the second body 41 and provided with an unclogging port 431 in communication with the unclogging channel 411.
  • the unclogging tool when the inner injection pipe 30 is clogged, the unclogging tool is inserted from the unclogging port 431 in the plug 43, pushes the second self-locking member 42 and enables the second self-locking member 42 to move from the closed position to the open position, and can be smoothly inserted into the inner injection pipe 30 to unclog the inner injection pipe 30.
  • the blocking member 40 can be directly removed from the second body, which further improves the convenience of maintenance.
  • the second body 41 further defines a guide slot 412 communicated with the unclogging channel 411.
  • the guide slot 412 has a lower end communicated with the unclogging channel 411, and extends obliquely from bottom to top towards the outer injection pipe 10 with respect to the length direction of the connecting channel 211.
  • the unclogging tool can push the second self-locking member 42 into the guide slot 412 more smoothly, and avoid jamming when the second self-locking member 42 is moved from the closed position to the open position.
  • the metallurgical furnace 1000 includes the above lance 100 according to the above embodiments.
  • the furnace body 200 of the metallurgical furnace 1000 is provided with a lance insertion port, through which the lance is inserted into the metallurgical furnace.
  • the inner injection pipe 30 and the outer injection pipe 10 of the lance are both submerged in the molten bath of the furnace body to respectively inject the pulverized coal and the combustion-supporting gas into the molten bath.
  • the combustion-supporting gas is fed to the combustion-supporting gas inlet 11 of the outer injection pipe 10 by means of a combustion-supporting gas supply device 3000, and the pulverized coal and the boosting wind are introduced into the medium inlet 31 of the inner injection pipe 30 by means of a medium supply device 2000.
  • the lance of the above embodiments when the pulverized coal injection causes friction wear to the inner injection pipe 30, and the inner injection pipe 30 needs to be repaired and replaced, it is not necessary to lower the liquid level in the molten bath to expose the lance to the outside of the molten bath (i.e. no need to interrupt the production). Rather, the liquid level in the molten bath remains unchanged, and the inner injection pipe 30 is directly removed from the insertion self-locking member 20 and pulled out from the outer injection pipe 10 and the insertion self-locking member 20. Meanwhile, the volume of the combustion-supporting gas into the outer injection pipe 10 is increased, which can maintain the operation of the metallurgical furnace. Afterwards, the inner injection pipe 30 is rapidly replaced and the volume of the combustion-supporting gas is restored to normal, such that the normal operation of the metallurgical furnace can be achieved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
EP17773006.6A 2016-04-01 2017-03-02 Lance for side-submerged combustion smelting metallurgical furnace and metallurgical furnace having lance Active EP3438590B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17773006T PL3438590T3 (pl) 2016-04-01 2017-03-02 Lanca dla pieca hutniczego do wytapiania o spalaniu zanurzeniowym bocznym i piec hutniczy posiadający lancę

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201610203843.0A CN105737614B (zh) 2016-04-01 2016-04-01 用于侧吹浸没燃烧熔池冶金炉的喷枪以及具有它的冶金炉
CN201620270953.4U CN205642013U (zh) 2016-04-01 2016-04-01 用于侧吹浸没燃烧熔池冶金炉的喷枪以及具有它的冶金炉
PCT/CN2017/075502 WO2017166975A1 (zh) 2016-04-01 2017-03-02 用于侧吹浸没燃烧熔池冶金炉的喷枪以及具有它的冶金炉

Publications (3)

Publication Number Publication Date
EP3438590A1 EP3438590A1 (en) 2019-02-06
EP3438590A4 EP3438590A4 (en) 2019-11-06
EP3438590B1 true EP3438590B1 (en) 2021-10-27

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EP17773006.6A Active EP3438590B1 (en) 2016-04-01 2017-03-02 Lance for side-submerged combustion smelting metallurgical furnace and metallurgical furnace having lance

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Country Link
EP (1) EP3438590B1 (pl)
AU (1) AU2017240929B2 (pl)
PL (1) PL3438590T3 (pl)
RU (1) RU2706900C1 (pl)
WO (1) WO2017166975A1 (pl)

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DE3669893D1 (de) * 1985-06-13 1990-05-03 Mitsubishi Metal Corp Kupferkonverter.
ES2123018T3 (es) * 1992-07-01 1999-01-01 Wurth Paul Sa Dispositivo para la inyeccion de carbon pulverizado en un crisol de alto horno.
AT404942B (de) * 1997-06-27 1999-03-25 Voest Alpine Ind Anlagen Anlage und verfahren zum herstellen von metallschmelzen
CN101929802B (zh) * 2009-06-25 2012-09-05 中国恩菲工程技术有限公司 侧吹喷枪
CN201561656U (zh) * 2009-11-30 2010-08-25 宝钢工程技术集团有限公司 熔融还原炉煤粉喷枪
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CN204261366U (zh) * 2014-11-19 2015-04-15 湖南瑞翔新材料股份有限公司 雾化喷枪
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PL3438590T3 (pl) 2022-03-21
EP3438590A4 (en) 2019-11-06
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WO2017166975A1 (zh) 2017-10-05
RU2706900C1 (ru) 2019-11-21
AU2017240929A1 (en) 2018-11-15

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