WO2023210412A1 - 造粒装置、造粒焼結原料の製造方法および焼結鉱の製造方法 - Google Patents

造粒装置、造粒焼結原料の製造方法および焼結鉱の製造方法 Download PDF

Info

Publication number
WO2023210412A1
WO2023210412A1 PCT/JP2023/015187 JP2023015187W WO2023210412A1 WO 2023210412 A1 WO2023210412 A1 WO 2023210412A1 JP 2023015187 W JP2023015187 W JP 2023015187W WO 2023210412 A1 WO2023210412 A1 WO 2023210412A1
Authority
WO
WIPO (PCT)
Prior art keywords
raw material
sintering
granulated
sintered
producing
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.)
Ceased
Application number
PCT/JP2023/015187
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
友司 岩見
康成 志村
頌平 藤原
寿幸 廣澤
隆英 樋口
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.)
JFE Steel Corp
Original Assignee
JFE Steel 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
Application filed by JFE Steel Corp filed Critical JFE Steel Corp
Priority to JP2023546184A priority Critical patent/JP7605329B2/ja
Priority to CN202380033573.1A priority patent/CN118946675A/zh
Priority to KR1020247033759A priority patent/KR20240162101A/ko
Publication of WO2023210412A1 publication Critical patent/WO2023210412A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Definitions

  • the present invention relates to a granulation device for granulating sintered raw materials, a method for producing granulated sintered raw materials, and a method for producing sintered ore.
  • Sintered ore which is a raw material for blast furnaces, is generally made up of iron-containing raw materials such as iron ore powder, recovered powder in steel works, and sintered ore unsieved powder, CaO-containing raw materials such as limestone and dolomite, and charcoal such as coke powder and anthracite.
  • (solid fuel) as a sintering raw material using a Dwight Lloyd sintering machine (hereinafter sometimes referred to as a "sintering machine"), which is an endless moving sintering machine.
  • the sintering raw material is charged into an endlessly movable pallet of the sintering machine to form a charging layer.
  • the thickness (height) of the charging layer is approximately 400 to 800 mm.
  • the coal material on the surface layer of the charging layer is ignited by an ignition furnace installed above the charging layer.
  • the carbonaceous material in the charging layer is sequentially combusted by sucking air downward through a wind box placed under the pallet. This combustion progresses progressively lower and forward as the pallet moves.
  • the combustion heat generated at this time burns and melts the sintering raw material, producing a sintered cake.
  • the obtained sintered cake is crushed in an ore discharge section, cooled in a cooler, and sized to become a finished sintered ore.
  • Patent Document 1 discloses a method for producing a granulated sintering raw material, in which steam such as water vapor is blown into the sintering raw material during granulation to heat the sintering raw material. According to Patent Document 1, by granulating the sintered raw material while blowing water vapor into it, the sintered raw material is preheated and dried, improving the permeability of the charging layer and improving the production rate of sintered ore. .
  • Patent Document 1 is a method of granulating the sintered raw material while blowing steam, there is a problem with blowing steam in the downstream region (second half) where the sintered raw material moves in the drum mixer. No disclosure or suggestion has been made. For this reason, when the method disclosed in Patent Document 1 is used, the temperature of the granulated and sintered raw material decreases before it is discharged from the discharge port.
  • the method disclosed in Patent Document 2 is a method in which the granulated raw material is heated with a heating device, so even after passing through the heating device, it is difficult to transfer heat into the inside of the raw material, so that the target The temperature may not be reached.
  • the present invention has been made in view of the problems of the prior art, and its purpose is to provide a granulation device and a granulation/sintering device that can efficiently heat the sintering raw material by blowing steam into the sintering raw material. It is an object of the present invention to provide a method for producing a raw material and a method for producing sintered ore using the method for producing the granulated and sintered raw material.
  • a granulator for granulating sintering raw materials including an iron-containing raw material, a CaO-containing raw material, and a coagulant, which includes an input port into which the sintering raw materials are input, and an outlet from which the granulated sintering raw materials are discharged.
  • a cylindrical drum that rotates with the horizontal direction as an axis of rotation;
  • a granulation device comprising: a steam pipe provided only in the latter half; and a plurality of nozzles connected to the steam pipe and jetting steam onto a deposition surface of the sintering raw material.
  • a method for producing a granulated sintered raw material in which a sintered raw material containing an iron-containing raw material, a CaO-containing raw material, and a coagulating material is granulated using a granulating device, the granulating device
  • a cylindrical drum is provided with an input port into which the granulated sintering raw material is input, and a discharge port through which the granulated sintering raw material is discharged, the drum having a cylindrical drum that rotates with a rotation axis in the horizontal direction, and within the drum,
  • a method for producing a granulated sintered raw material wherein steam is blown into the sintered raw material only in the latter half from an intermediate position between the input port and the discharge port to the discharge port to obtain a granulated sintered raw material.
  • the granulation device By using the granulation device according to the present invention, steam can be blown into the sintering raw material to efficiently heat it, so the amount of steam used during granulation can be reduced.
  • the permeability of the charging layer is improved and the production rate of sintered ore is improved. It is possible to improve the production rate and suppress the increase in the manufacturing cost of sintered ore.
  • FIG. 1 is a schematic diagram showing an example of a sintered ore production facility 10 having a drum mixer 32, which is a granulation device according to the present embodiment.
  • FIG. 2 is a graph showing the relationship between the temperature increase of the pseudo particles upon charging into a pallet of the sintering machine and the rate of increase in the productivity of the sintered ore.
  • FIG. 3 is a graph showing the moisture content of the sintering raw materials of Experimental Examples 1 to 3.
  • FIG. 4 is a graph showing the particle diameter of the pseudo particles of Experimental Examples 1 to 3 and the air permeability index JPU of the charging layer.
  • FIG. 5 is a graph showing the production rate of sintered ore in Experimental Examples 1 to 3.
  • FIG. 1 is a schematic diagram showing an example of a sintered ore production facility 10 having a drum mixer 32, which is a granulation device according to the present embodiment.
  • the iron-containing raw material 12 stored in the yard 11 is transported to a mixing tank 22 by a transport conveyor 14.
  • the iron-containing raw material 12 includes various brands of iron ore and dust generated within a steel mill.
  • the raw material supply section 20 includes a plurality of blending tanks 22, 24, 25, 26, and 28.
  • the iron-containing raw material 12 is stored in the blending tank 22 .
  • the blending tank 24 stores a CaO-containing raw material 16 containing limestone, quicklime, etc.
  • the blending tank 25 stores an MgO-containing raw material 17 including dolomite, refined nickel slag, etc.
  • the blending tank 26 stores a coagulating material 18 containing coke powder and anthracite that have been crushed to a particle size of 1 mm or less using a rod mill.
  • the blending tank 28 stores return ore (sintered ore undersieve powder) with a particle size of 5 mm or less, which is the undersieve of the sintered ore.
  • a predetermined amount of each raw material is cut out from the blending tanks 22 to 28 of the raw material supply section 20, and these are blended to form a sintering raw material.
  • the sintering raw material is conveyed to a drum mixer 32 by a conveyor 30.
  • the MgO-containing raw material 17 is an optionally blended raw material, and may or may not be blended with the sintering raw material.
  • the drum mixer 32 is a granulation device that granulates the sintered raw material while blowing steam onto it.
  • the drum mixer 32 includes a cylindrical drum 33 that rotates with the horizontal direction as an axis of rotation, a steam pipe 36, and a plurality of nozzles 37 that are connected to the steam pipe 36 and eject steam 38 onto the surface on which the sintering raw material is deposited.
  • water vapor is an example of steam.
  • the rotation axis of the drum mixer 32 may be substantially horizontal. Further, in order to efficiently discharge the pseudo particles, the rotation axis may be tilted so that the discharge port 35 is located vertically below the input port 34.
  • the cylindrical drum 33 has an input port 34 provided on one end surface of the drum 33 for introducing the sintering raw material, and an input port 34 provided on the other end surface of the drum 33 for receiving the granulated sintering material. (hereinafter referred to as pseudo particles) is provided with an outlet through which the particles are discharged.
  • the steam pipe 36 is provided only in the latter half of the drum 33 between the intermediate position between the input port 34 and the discharge port 35 and the discharge port 35. Steam is blown toward the surface where the crystallizing material is deposited.
  • the average particle diameter of 3.5 mm is higher than that of the sintered raw material that is granulated without blowing water vapor into the sintered raw material.
  • the pseudo particles are transported to a sintering machine 40 by a transport conveyor 39.
  • the average particle size of the pseudo particles is the arithmetic mean particle size, ⁇ (Vi ⁇ di) (where Vi is the abundance ratio of particles in the i-th particle size range, and di is the i It is the particle size defined by the representative particle size of the particle size range.
  • the drum mixer 32 is an example of a granulating device that granulates the sintering raw material.
  • the sintering machine 40 is, for example, a downward suction type Dwight Lloyd type sintering machine.
  • the sintering machine 40 includes a sintering raw material supply device 42, an endlessly movable pallet truck 44, an ignition furnace 46, and a wind box 48.
  • the sintering raw material is charged from the sintering raw material supply device 42 to the pallet truck 44, and a charged layer of the sintering raw material is formed.
  • the charge layer is ignited in an ignition furnace 46 .
  • suctioning air through the wind box 48 the coagulated material 18 is combusted within the charge layer, and the combustion/melting zone within the charge layer is moved below the charge layer. This causes the charging layer to sinter and form a sintered cake.
  • a gaseous fuel supply device 47 may be provided.
  • the gaseous fuel supplied from the gaseous fuel supply device 47 includes blast furnace gas, coke oven gas, blast furnace/coke oven mixed gas, converter gas, city gas, natural gas, methane gas, ethane gas, propane gas, shale gas, and mixtures thereof. Any combustible gas selected from gases.
  • the sintered cake is crushed into sintered ore by a crusher 50.
  • the sintered ore crushed by the crusher 50 is cooled by a cooler 52.
  • the sintered ore cooled by the cooler 52 is sieved by a sieving device 54 having a plurality of sieves, and is separated into finished sintered ore 56 with a particle size of more than 5 mm and return ore 58 with a particle size of 5 mm or less. be done.
  • the finished sintered ore 56 is used as a blast furnace raw material.
  • the return ore 58 is conveyed to the blending tank 28 of the raw material supply section 20 by a conveyor 60.
  • the particle size of the finished sintered ore 56 and the particle size of the return ore 58 mean the particle size that can be sieved by a sieve. This is the particle size that is sieved on the sieve, and the particle size of 5 mm or less is the particle size that is sieved under the sieve using a sieve with an opening of 5 mm.
  • the grain size values of the finished sintered ore 56 and the return ore 58 are just examples, and are not limited to these values.
  • FIG. 2 is a graph showing the relationship between the temperature increase of the pseudo particles charged into the pallet truck 44 of the sintering machine and the rate of increase in the productivity of sintered ore.
  • the horizontal axis in FIG. 2 is the temperature rise (° C.) of the pseudo particles when they are charged into the pallet truck 44 of the sintering machine.
  • the increased temperature is the difference between the average temperature of the pseudo particles granulated by blowing water vapor into them and the average temperature of the pseudo particles granulated without blowing water vapor into them when they are loaded into the pallet truck 44.
  • the average temperature of the pseudo particles granulated without blowing water vapor is 18.3°C, and each plot in the figure shows that the average temperature of the pseudo particles when loaded into the pallet truck 44 is 38.0°C, 35°C. Examples are 0°C, 35.5°C, 45.0°C, and 51.0°C.
  • the vertical axis of FIG. 2 is the improvement effect (%) on the production rate of sintered ore, and is a value calculated by the following formula (1).
  • T1 is the production rate (t/(hr ⁇ m 2 )) of sintered ore when sintered ore is manufactured using pseudo particles granulated without blowing steam
  • T2 is the production rate (t/(hr ⁇ m 2 )) of sintered ore when sintered ore is manufactured using pseudo particles granulated by blowing water vapor into the sintered ore.
  • FIG. 3 is a graph showing the moisture content of the sintering raw materials of Experimental Examples 1 to 3.
  • the bar graph shown with diagonal hatching shows the moisture content (mass%) of the sintered raw material at the side entering the drum mixer, and the bar graph shown with horizontal hatching shows the water content (mass%) of the sintered raw material at the time of charging into the sintering machine. %).
  • Experimental Example 1 is a production example using pseudo particles in which the average temperature of the sintering raw material at the time of charging into the sintering machine is 33°C.
  • Experimental example 2 is a production example using pseudo particles in which the average temperature of the sintering raw material at the time of charging into the sintering machine is 60°C.
  • Experimental example 3 is a production example using pseudo particles in which the average temperature of the sintering raw material at the time of charging into the sintering machine is 62°C.
  • FIG. 4 is a graph showing the particle diameter of the pseudo particles of Experimental Examples 1 to 3 and the air permeability index JPU of the charging layer.
  • the bar graph indicated by diagonal hatching indicates the particle diameter (mm) of the pseudo particles
  • the bar graph indicated by horizontal hatching indicates the air permeability index JPU (-) ((-) means dimensionless.) shows.
  • the particle diameter of the pseudo particles is the above-mentioned calculated average particle diameter
  • the air permeability index JPU of the charging layer is an index calculated using the following formula (2).
  • V is the air volume (m 3 /min)
  • S is the effective area of the sintering machine (m 2 )
  • h is the charging layer height (mm)
  • ⁇ P is the pressure loss (mmH 2 O).
  • FIG. 5 is a graph showing the production rate of sintered ore in Experimental Examples 1 to 3.
  • the production rate of sintered ore is the amount of finished sintered ore produced in 1 hour per m 2 of charging layer (t).
  • the production rate of Experimental Example 1 was 1.29
  • the production rate of Experimental Example 3 was 1.39
  • the production rate of sintered ore was greatly increased.
  • the improvement in production rate in Experimental Example 3 is considered to be due to the improvement in air permeability shown in FIG.
  • Experimental Example 2 the air permeability of the charging layer was significantly reduced, sintering did not proceed, and the sintering raw material was not agglomerated.
  • the amount of water evaporation was confirmed when the pseudo particles discharged from the drum mixer 32 were heated to an average temperature of 80°C or higher, the water content after granulation was 2.0% by mass or more and 4.5%. It was confirmed that the amount of water less than % by mass evaporated.
  • the moisture content after granulation in the sintered raw material during granulation must be 0.5% by mass or more. It is preferable to further add water within a range of 5% by mass or less. Thereby, even if the pseudo particles are heated to 60° C. or higher, the amount of moisture necessary for granulation can be ensured, and pseudo particles having a particle diameter of about 3 mm heated to 60° C. or higher can be produced from the sintered raw material. By producing sintered ore using these heated pseudo-particles, the permeability of the charging layer is improved, thereby realizing an improvement in the production rate of sintered ore.
  • the sintered raw material during granulation is further added with a water content of 0.5% by mass or more and 3.0% by mass or less after granulation. It is preferable to add water, and when the average temperature of the pseudo particles is 80° C. or higher, it is preferable to further add water in an amount of 2.0% by mass or more and 4.5% by mass or less in terms of the amount of water after granulation.
  • the amount of water to be added may be determined within the above range by measuring the water content of the pseudo particles discharged from the drum mixer 32 at predetermined intervals. Further, water may be added by adding factory water, hot water, or condensed water to the sintered raw material during granulation.
  • Table 1 shows the results of an experiment in which steam was blown into the sintering raw material by changing the position of the steam pipe 36 to the input port side and the discharge port side. Note that the temperature on the outlet side of the discharge port in the table is the average temperature of the pseudo particles discharged from the drum mixer 32.
  • Experimental Examples 11 and 12 are granulation examples in which the steam pipe 36 is provided only in the first half from the input port 34 to the intermediate position between the input port and the discharge port, and steam is blown into the sintering raw material to granulate it.
  • Experimental Examples 13 to 15 are granulation examples in which the steam pipe 36 is provided only in the latter half between the inlet 34 and the outlet 35 and the outlet 35, and steam is blown into the sintering raw material to granulate it. It is.
  • the drum mixer 32 which is the granulation device according to the present embodiment, can blow steam into the sintering raw material and heat it efficiently. Therefore, if the amount of steam used is the same, the sintering raw material can be heated to a higher temperature, and if the temperature on the outlet side is the same, the sintering raw material can be heated with a smaller amount of steam used.
  • the granulation device according to the present embodiment it is possible to reduce the amount of steam used during the production of sintered ore while heating the sintered raw material to a predetermined temperature, thereby improving the production rate of the sintered ore. It is possible to suppress an increase in the manufacturing cost of sintered ore.
  • Sintered ore production equipment 11 Yard 12 Iron-containing raw material 14 Conveyor 16 CaO-containing raw material 17 MgO-containing raw material 18 Coagulating material 20 Raw material supply section 22 Blending tank 24 Blending tank 26 Blending tank 28 Blending tank 30 Conveyor 32 Drum mixer 33 Drum 34 Input port 35 Discharge port 36 Steam pipe 37 Nozzle 38 Steam 39 Conveyor 40 Sintering machine 42 Sintering raw material supply device 44 Pallet truck 46 Ignition furnace 48 Wind box 50 Crusher 52 Cooler 54 Sieving device 56 Finished sintered ore 58 Return ore 60 Conveyor 62 Sintering raw material

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
PCT/JP2023/015187 2022-04-28 2023-04-14 造粒装置、造粒焼結原料の製造方法および焼結鉱の製造方法 Ceased WO2023210412A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2023546184A JP7605329B2 (ja) 2022-04-28 2023-04-14 造粒装置、造粒焼結原料の製造方法および焼結鉱の製造方法
CN202380033573.1A CN118946675A (zh) 2022-04-28 2023-04-14 造粒装置、造粒烧结原料的制造方法及烧结矿的制造方法
KR1020247033759A KR20240162101A (ko) 2022-04-28 2023-04-14 조립 장치, 조립 소결 원료의 제조 방법 및 소결광의 제조 방법

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022073926 2022-04-28
JP2022-073926 2022-04-28

Publications (1)

Publication Number Publication Date
WO2023210412A1 true WO2023210412A1 (ja) 2023-11-02

Family

ID=88518553

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/015187 Ceased WO2023210412A1 (ja) 2022-04-28 2023-04-14 造粒装置、造粒焼結原料の製造方法および焼結鉱の製造方法

Country Status (5)

Country Link
JP (1) JP7605329B2 (https=)
KR (1) KR20240162101A (https=)
CN (1) CN118946675A (https=)
TW (1) TWI892118B (https=)
WO (1) WO2023210412A1 (https=)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50104103A (https=) * 1974-01-25 1975-08-16
JP2022039966A (ja) * 2020-08-28 2022-03-10 Ｊｆｅスチール株式会社 焼結鉱の製造方法および焼結鉱の製造設備

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PH12021551303A1 (en) * 2018-12-07 2022-04-11 Jfe Steel Corp Sintered ore manufacturing method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50104103A (https=) * 1974-01-25 1975-08-16
JP2022039966A (ja) * 2020-08-28 2022-03-10 Ｊｆｅスチール株式会社 焼結鉱の製造方法および焼結鉱の製造設備

Also Published As

Publication number Publication date
KR20240162101A (ko) 2024-11-14
CN118946675A (zh) 2024-11-12
TW202346608A (zh) 2023-12-01
JPWO2023210412A1 (https=) 2023-11-02
JP7605329B2 (ja) 2024-12-24
TWI892118B (zh) 2025-08-01

Similar Documents

Publication Publication Date Title
AU2019391453B2 (en) Sintered ore manufacturing method
JPH024658B2 (https=)
JP5315659B2 (ja) 焼結鉱の製造方法
JP6686974B2 (ja) 焼結鉱の製造方法
AU2019228862B2 (en) Method for Manufacturing Granulated Raw Material for Sintering
JP5194378B2 (ja) 焼結鉱の製造方法
JP2019218614A (ja) 焼結鉱の製造方法
WO2023210412A1 (ja) 造粒装置、造粒焼結原料の製造方法および焼結鉱の製造方法
JP7328537B2 (ja) 焼結鉱の製造方法
JP7605330B2 (ja) 造粒装置、造粒焼結原料の製造方法および焼結鉱の製造方法
JP6734370B2 (ja) 原料処理装置及び原料処理方法
JP5126580B2 (ja) 焼結鉱の製造方法
JP4830728B2 (ja) 焼結鉱の製造方法
JP2016211032A (ja) フェロニッケルの製造方法
JP7501489B2 (ja) 焼結鉱の製造方法および焼結機
JP7548185B2 (ja) 焼結鉱の製造方法および焼結機
JP7790379B2 (ja) 焼結鉱の製造設備及び焼結鉱の製造方法
JP4996211B2 (ja) 鉄鉱石ペレットを製造する際の造粒原料の粒度決定方法
JP2005248271A (ja) 焼結原料の造粒方法
CN120882889A (zh) 烧结矿的制造方法
JPH11279667A (ja) 焼結鉱の製造方法

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2023546184

Country of ref document: JP

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23796155

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20247033759

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1020247033759

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 202380033573.1

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 202417078220

Country of ref document: IN

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 23796155

Country of ref document: EP

Kind code of ref document: A1