WO2017069526A1 - 원료 처리 장치, 원료 처리 방법 및 이를 이용하여 제조된 조립물 - Google Patents

원료 처리 장치, 원료 처리 방법 및 이를 이용하여 제조된 조립물 Download PDF

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Publication number
WO2017069526A1
WO2017069526A1 PCT/KR2016/011801 KR2016011801W WO2017069526A1 WO 2017069526 A1 WO2017069526 A1 WO 2017069526A1 KR 2016011801 W KR2016011801 W KR 2016011801W WO 2017069526 A1 WO2017069526 A1 WO 2017069526A1
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WIPO (PCT)
Prior art keywords
raw material
granules
iron
binder
primary
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PCT/KR2016/011801
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English (en)
French (fr)
Korean (ko)
Inventor
정병준
지윤경
Original Assignee
주식회사 포스코
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Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to CN201680061936.2A priority Critical patent/CN108138257A/zh
Priority to EP16857784.9A priority patent/EP3366791A1/en
Priority to JP2018520616A priority patent/JP6734370B2/ja
Publication of WO2017069526A1 publication Critical patent/WO2017069526A1/ko

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    • 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
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • 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
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/2413—Binding; Briquetting ; Granulating enduration of pellets
    • 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
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • C22B1/243—Binding; Briquetting ; Granulating with binders inorganic
    • 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
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • C22B1/244—Binding; Briquetting ; Granulating with binders organic

Definitions

  • the present invention relates to a raw material processing apparatus, a raw material processing method, and a granulated product manufactured using the same, and more particularly, a raw material processing apparatus capable of producing granulated materials having excellent strength by using an ultra fine raw material such as ultra fine iron ore. It relates to a raw material processing method and granules produced using the same.
  • sintered fine iron ore is manufactured to a size suitable for blast furnace use.
  • iron ore, secondary raw materials, and fuels powder coke, anthracite coal), etc. are put in a drum mixer, mixed and humidified (raw material weight ratio of about 7 to 8%), and the sintered blended raw materials are pseudo-granulated to be fixed on the sintered truck.
  • Charging at a height and firing of the sintered blended raw material proceeds by forcibly sucking air from below after surface ignition by the ignition furnace, and a sintered ore is manufactured.
  • the sintered ore is cooled in a cooler through a crusher of the light distribution unit, classified into a particle size of 5 to 50 mm that is easy for charging and reaction in the blast furnace, and then transferred to the blast furnace.
  • the process of preparing a sintered blended raw material for producing a sintered ore is a process of mixing iron ore as a main raw material, limestone as a raw material, quicklime and silica, and coke acting as a fuel during sintering, assembling a mixture of main raw materials, subsidiary materials and coke. It includes the process of doing. And the granulated material produced by this process is charged into the sintering machine and sintered.
  • the coke contained in the granulated material is brought into contact with oxygen in the air to generate a flame, and as the flame is advanced, the sintered compound raw material charged into the sinterer is sintered. .
  • pellet feed is an ultra fine iron ore having a particle size of 0.15 mm or less and contains nearly 70% of iron (T.Fe) component.
  • T.Fe iron
  • the granules for the raw material for sintering compounding are manufactured by applying a conventional granulation process without selectively granulating the pellet feed, such as quicklime to secure granularity and strength. Expensive binders are used in large quantities.
  • the present invention provides a raw material processing apparatus, a raw material processing method, and a granulated product manufactured using the same, which can improve the strength of a granulated product made of an ultrafine raw material.
  • the present invention provides a raw material processing apparatus, a raw material processing method, and a granulated product manufactured using the same, which can improve the strength of the granulated product and improve the operation efficiency using the granulated product.
  • a raw material processing apparatus an apparatus for processing a raw material for producing a sintered ore, comprising: a primary granulator for assembling an iron-containing fine powder raw material and a binder to produce a primary granulated product; A secondary granulator for forming a secondary granule by forming a coating layer including at least one of quicklime and slaked lime on the surface of the primary granule; It may include a curing device for curing the secondary granules.
  • It may include a mixer for mixing the iron-containing fine powder raw material and the binder.
  • the primary granulator and the secondary granulator may include a moisture supplier for supplying moisture.
  • the curing machine may include a transfer path for transferring the secondary granules manufactured in the secondary granulator, and an exhaust gas supply for supplying exhaust gas to the transfer path.
  • the exhaust gas supply may supply the exhaust gas generated in the lime firing process.
  • a raw material processing method a method for processing a raw material for the production of sintered ore, the process of preparing an iron-containing ultra-fine powder raw material and the binder; Mixing the iron-containing ultrafine powder and a binder in a mixer; Preparing a primary granule by injecting the iron-containing fine powder raw material and a binder into a primary granulator; Preparing at least one of the primary granules, quicklime (CaO) and slaked lime (Ca (OH) 2 ) to a secondary granulator to produce a secondary granule; And curing the secondary granules with CO 2 .
  • the iron-containing fine powder raw material may have a particle size of more than 0 mm to 4 mm or less.
  • the iron-containing fine powder raw material may include at least one of iron ore, pellet feed and steelmaking by-products.
  • the binder may include at least one of molasses, ultrafine limestone, bentonite, ladle slag, fly ash, and a polymer organic binder.
  • the binder may be used in an amount of 0.1 to 5% by weight based on the weight of the iron-containing ultrafine powder.
  • Water may be supplied in the process of manufacturing the primary granules and the secondary granules.
  • the secondary granules may be manufactured to a size of 10 mm or less.
  • the exhaust gas may be an exhaust gas generated in a lime firing process.
  • the exhaust gas may have a CO 2 concentration of 3 to 7%.
  • the exhaust gas may contain 3 to 10% moisture.
  • the exhaust gas of 50 to 100 °C can be supplied to the secondary granules.
  • the curing may be performed in a process of transferring to the reservoir for storing the secondary assembly.
  • a coating layer including calcium carbonate may be formed on the surface of the primary granule.
  • the granulated material according to the embodiment of the present invention may be manufactured by the above-described raw material processing method, and may be formed to have a diameter of 10 mm or less.
  • the granulated material may have a coating layer having a thickness of 0.25 to 1 mm, and the coating layer may include calcium carbonate (CaCO 3 ).
  • the granules may be manufactured using the ultrafine iron ore such that the coating layer containing quicklime or slaked lime on the surface of the primary granules.
  • the ultrafine iron ore such that the coating layer containing quicklime or slaked lime on the surface of the primary granules.
  • 1 is a view showing a sintered ore manufacturing equipment.
  • FIG. 2 is a view conceptually showing a raw material processing apparatus according to an embodiment of the present invention.
  • FIG. 3 is a flowchart illustrating a raw material processing method according to an embodiment of the present invention.
  • FIG. 4 is a view conceptually showing a granule manufactured by the raw material processing method according to an embodiment of the present invention.
  • the ultrafine powder having a particle size of more than 0 mm to 4 mm may be used as a raw material to prepare a sintered ore by making granules.
  • a strength of the granulated product may be increased by forming a coating layer on the surface of the granulated product.
  • FIG. 1 is a view showing a sintered ore manufacturing equipment
  • FIG. 2 is a view conceptually showing a raw material processing apparatus according to an embodiment of the present invention
  • Figure 3 is a flow chart for explaining a raw material processing method according to an embodiment of the present invention
  • 4 is a view conceptually showing a granule manufactured by the raw material processing method according to an embodiment of the present invention.
  • a sintered ore manufacturing facility includes a moving path (not shown) for forming a closed loop, a sintered bogie 300 moving in an endless orbit manner along the moving path, and disposed on the moving path.
  • the raw material supply unit 100 for charging the sintering raw material into the sintering bogie 300, and the ignition furnace 200 and the sintering bogie 300 to ignite by spraying the flame on the surface layer of the raw material in the sintering bogie 300 It includes a plurality of wind box 400.
  • the raw material supply unit 100 in the sintered trolley 300 moving along the movement path
  • one side of the raw material supply unit 100 that is, the front direction of the moving direction of the sintered trolley 300.
  • the surface layer portion of the sintered compound raw material in the sintered trolley 300 is ignited in the ignition furnace 200 located. After the ignition, the sintered trolley 300 moves along the movement path, and the sintered blend 300 is sintered by the inside of the sintered trolley 300 by the wind box 400 under the moving path, and the sintered ore is manufactured.
  • the raw material of the sintered ore may be used for the top light and the sintered blended raw material.
  • the upper light is generated after the production of the sintered ore and means a sintered ore having a predetermined size, for example, about 10 to 15 mm, selected by the sorter 560.
  • the upper light is stored in the upper optical hopper 110 of one side of the surge hopper 120 for storing the sintered compound raw material, and is charged to the bottom of the sintered bogie 300 before charging the sintered compound raw material to the sintered bogie 300.
  • the raw material for sintering blend includes iron ore, quicklime, limestone, silica, coke, coal and the like, it means that they are mixed uniformly. At this time, coke and coal may be used as fuel.
  • the sintered compound raw material is charged to the upper part of the upper light in the sintered trolley 300 by the charging device 130, each raw material constituting them has a particle size of, for example, 10mm or less.
  • an extremely fine raw material having a very small particle diameter for example, greater than 0 to 4 mm or less, deteriorates the air permeability in the sintered bogie 300 during sintering, so that the sintered blend raw material is subjected to a separate processing process, that is, an assembly process.
  • a separate processing process that is, an assembly process.
  • the strength of the granules is not very good because the fine powder is assembled into a granulator and used as it is. Therefore, in the present invention, the strength of the granulated product can be improved by forming a coating layer on the surface of the granulated product after the curing process after preparing the granulated product using the ultrafine powder.
  • a raw material processing apparatus for preparing a sintered blend raw material may be configured as follows.
  • the raw material processing apparatus 500 mixes raw materials supplied from the raw material reservoirs 520, 522, 524, 526, and 528 and the raw material reservoirs 520, 522, 524, 526, and 528. It includes a primary mixer 530, a granulation unit 540 for assembling ultrafine raw materials to produce granules, and a secondary mixer 550 for mixing the raw materials and granules mixed in the primary mixer 530. can do.
  • the raw material reservoirs 520, 522, 524, 526, and 528 include an iron ore storage hopper for storing iron ore, a limestone hopper for storing limestone, a 522, a silica ore hopper for storing quartz, and coke Or a fuel hopper 526 for storing fuel such as coal and a semi-light hopper 528 for storing semi-glossy.
  • the semi-light hopper 528 receives the semi-light from the storage hoppers 510 and 512 for storing the semi-reflected light generated after the manufacture of the blast furnace semi-light or sintered ore.
  • the primary mixer 530 serves to uniformly mix each raw material discharged from each hopper of the raw material reservoirs 520, 522, 524, 526, and 528.
  • the secondary mixer 550 uniformly mixes the mixture discharged from the primary mixer 530 and the granules produced in the granulation unit 540 to produce a sintered blended raw material.
  • the prepared sintered blended raw material is stored in the surge hopper 120 of the raw material supply unit 100 of the sintered ore manufacturing equipment.
  • the granulation unit 540 includes a first hopper 541 for storing the ultra fine raw material and the binder, a mixer 542 for uniformly mixing the ultra fine raw material and the binder discharged from the first hopper 541, and the ultra fine raw material. And a primary granulator 543 for assembling a mixture of a binder and a primary granule, a second hopper 544 for storing quicklime and slaked lime, and a primary granule manufactured in the primary granulator 543. It may include a secondary granulator 545 for producing the secondary granules using at least one of quicklime and slaked lime and a curing machine 546 for curing the secondary granules.
  • the first hopper 541 may be configured in plural to store the ultra fine raw material and the binder, respectively, and may discharge the ultra fine raw material and the binder by a predetermined amount to the mixer 542.
  • the ultrafine raw material may be an iron-containing ultrafine raw material containing iron, and may have a particle size of more than 0 to 4 mm or less.
  • Iron-containing ultrafine raw materials may include iron ore, pellet feed, steelmaking by-products, etc., and steelmaking by-products may include dust or sludge.
  • the binder may include at least one of molasses, microanalytical lime, bentonite, ladle slag, fly ash, and a polymer organic binder, and may be used in a solid state or a liquid state.
  • the mixer 542 may be a 'high speed agitation mixer' for rapidly stirring the iron-containing ultrafine powder and the binder supplied from the first hopper 541.
  • the mixer 542 stirs the ferrous fine powder raw material supplied from the first hopper 541 and the binder at high speed to uniformly mix the same.
  • the mixer 542 has a cylindrical shape having an internal space, and may be provided with a stirring means, for example, a blade (not shown) for mixing the inputted raw materials.
  • the mixer 542 may be provided with a nozzle for spraying water on the mixture of the ultra-ferrous iron raw material and the binder.
  • the primary granulator 543 is a pelletizer used in a typical selective assembly facility, and has an internal space in which a mixture is charged, and a rotating fan (not shown) is installed therein, and is mixed in the mixer 542.
  • the mixture of the ultrafine iron-containing raw material and the binder flows on a rotating fan to gradually grow particles to granulate to prepare a primary granule.
  • the primary granulator 543 may be provided with a moisture supply for supplying moisture in the primary granulator 543 so that the iron-containing ultrafine raw material and the binder can be easily combined.
  • the secondary granulator 545 may be formed to have almost the same configuration as the primary granulator 543.
  • the secondary granulator 545 manufactures the secondary granules using at least one of the primary granules manufactured in the primary granulator 543 and the quicklime and slaked lime supplied from the second hopper 544.
  • the secondary granules may be formed by using a primary granule having a relatively large particle as a nucleus, and having quick particle or slaked lime having a smaller particle size attached to the surface of the primary granule.
  • the secondary granulator 545 may be provided with a moisture supply for supplying moisture in the secondary granulator 545 so that quick lime or slaked lime can be easily attached to the surface of the primary granule.
  • the curing machine 546 may include a transport path for transporting the secondary granules manufactured by the secondary granulator 545, and a gas containing at least one of carbon and oxygen in the secondary assembly transported along the transport path. And an exhaust gas supply for supplying exhaust gas containing CO 2 .
  • the transport path may be a conveyor belt or the like, and the exhaust gas supplier may be formed to inject the exhaust gas onto the transport path.
  • the exhaust gas supplier may supply various exhaust gases generated in the steelmaking process, and in the embodiment of the present invention, may supply exhaust gases generated in the lime firing process.
  • the raw material processing method according to an embodiment of the present invention, the process of preparing a main raw material (S100), the primary mixing process of mixing the main raw material (S110), to prepare a granulated material by assembling the ultra fine raw materials Process (S120), the secondary raw material mixing the raw material and the granulated material to produce a sintered blending raw material (S130) and the step of storing the sintered blended raw material in a reservoir, that is, surge hopper 120 (S140) have.
  • quicklime and slaked lime are used in addition to the ultrafine iron-containing raw materials. Therefore, when preparing main raw materials, quicklime or slaked lime is not provided separately or less than the amount prepared when preparing the raw material for sintering compounding. can do.
  • the process of manufacturing the granulated product is as follows.
  • the process of manufacturing the granulated material (S120), the process of preparing the iron-containing fine powder, binder and quicklime and hydrated lime (S121), the process of mixing the iron-containing fine powder and the binder (S122), and the iron-containing fine powder Preparation of primary granules using a mixture of binders (S123), and quicklime on the surface of the primary granules using any one of the primary granules, quicklime (CaO) and slaked lime (Ca (OH) 2 )
  • Iron-containing ultrafine raw materials may include iron ore, pellet feed, steelmaking by-products having a particle size greater than 0 to 4 mm or less.
  • the steelmaking by-product may be dust or sludge containing an iron component.
  • iron ore and steelmaking by-products are used as the iron-containing fine powder
  • iron ore may be included in an amount of about 50 to 90% by weight based on the total weight of the iron-containing fine powder.
  • the content of iron ore is less than the suggested range, the iron content in the sintered ore decreases, and when more than the suggested range, the strength of the granules is lowered.
  • the binder may be at least one of molasses, microanalytical lime, bentonite, ladle slag, fly ash, and a polymer organic binder.
  • the binder may be used in the liquid state or the solid state.
  • the binder may be used in an amount of 0.1 to 5% by weight based on the weight of the iron-containing fine powder raw material. At this time, when the binder is in the liquid state, it is preferable to use it in the range of about 0.1 to 1% by weight, and in the solid state, it is preferable to use it in the range of 5% by weight or less.
  • the binder When the binder is in a liquid state, if the binder is used in a smaller or larger range than the suggested range, the assemblability of the assembly may be degraded in the subsequent assembly process. In addition, when the binder is in a solid state, when the binder is used in less than the indicated range, the granularity of the granules may be reduced, and when the binder is used in a larger range, the assembly of the granule may be improved, but it may be performed later. As the binder is removed in the high temperature process, the strength of the granules may be lowered, and when the sintered ore manufactured using the same is used in the steelmaking process, a large amount of steel slag may occur.
  • Quicklime and slaked lime are materials for forming a coating layer on the surface of a granule when the granule is manufactured.
  • Quicklime and slaked lime may have a particle size of greater than 0 to about 0.25 mm. If the particle size of quicklime and hydrated lime is larger than the suggested range, it is difficult to form a coating layer having a uniform thickness, and there is a problem that it is difficult to effectively increase the strength of the granules by delaying the reaction time with CO 2 during the curing process.
  • the iron-containing fine powder raw material and the binder are supplied to the mixer 542 to be uniformly mixed.
  • the mixture of the iron-containing fine powder raw material and the binder is charged into a primary granulator 543 to prepare a primary granule composed of the iron-containing fine powder raw material and the binder.
  • the primary granules When the primary granules are manufactured, the primary granules are charged into the secondary granulator 545, and at least one of quicklime and slaked lime is charged to prepare the secondary granules.
  • the secondary granules form a coating layer containing either quicklime or hydrated lime on the surface of the primary granules, and supply the moisture to the secondary granulator 545 so that quicklime or hydrated lime can be easily attached to the surface of the primary granules. Can be.
  • the secondary granules may be formed to have a particle size of 10 mm or less, and preferably, a ratio having a particle size of about 1 to 8 mm may be about 70 to 90%.
  • a ratio having a particle size of about 1 to 8 mm may be about 70 to 90%.
  • the ratio having a particle size of about 1 to 8 mm may be larger than the indicated range, but it is impossible due to the capability of the installation itself.
  • the coating layer formed on the surface of the primary assembly by the secondary assembly process may be formed to a thickness of about 0.25 to 1 mm. If the thickness of the coating layer is smaller than the suggested range, the coating layer is not partially formed on the surface of the primary assembly, so that the strength of the final fabricated assembly cannot be improved as desired, and if the coating layer is larger than the suggested range, the strength of the assembly can be improved. However, the effect is insignificant and there is a problem that the production cost increases with the use of quicklime or slaked lime.
  • the secondary granules are transferred to the secondary mixer 550 so as to uniformly mix the secondary granules.
  • the secondary granules are cured by supplying flue gas containing CO 2 to a transfer path through which the secondary granules are transferred.
  • the flue gas supplied to the secondary granulated product may be flue gas generated in various processes, and in the present embodiment, flue gas generated in a lime firing process for preparing quicklime may be used.
  • Flue gas generated in the lime firing process is a high temperature of about 300 °C, if the direct supply of such exhaust gas to the secondary assembly has a problem that the transport path to the secondary assembly is transported may be damaged.
  • the secondary granules contain a predetermined amount of water, when a high temperature exhaust gas is supplied, there is a problem in that the secondary granules may be differentiated as the moisture in the secondary granules rapidly evaporates.
  • the flue gas generated in the lime calcination process contains about 20% of CO 2 concentration and about 15% of moisture.
  • concentration of CO 2 in the flue gas and the moisture content may be reduced to some extent.
  • a secondary gas can be supplied with a flue gas having a CO 2 concentration of 10% or less, preferably 3-7%, and a water content of 10% or less, preferably 3-10%.
  • the coating layer formed on the surface of the secondary granules that is, the surface of the primary granules is cured by forming CO 2 and calcium carbonate (CaCO 3 ) by the reaction of Equation 1 and 2 below. This may improve the strength of the secondary assembly.
  • the granulated material thus prepared is supplied to the secondary mixer 550, mixed with the main raw materials mixed in the primary mixer 530, prepared as a sintered compound raw material, and then charged into the surge hopper 120.
  • the primary granules were prepared using iron ore, dust and sludge each having a composition ratio of 2: 1: 1, and molasses as a binder.
  • the secondary granules were prepared by forming a coating layer on the surface of the primary granules using quicklime having a particle size of 0.25 mm or less. At this time, the secondary granules were prepared by varying the thickness of the coating layer.
  • Secondary assemblies were prepared with varying thicknesses of the coating layers of 0.25 mm, 0.5 mm, 1.0 mm and 1.5 mm.
  • the strength represents the ratio of the granules having a particle size of 4 mm or more by dropping 300 g of granules having a particle size of 4 ⁇ 6.3 mm five times at a height of 2 m.
  • Experimental Example 1 Experimental Example 2
  • Experimental Example 3 Experimental Example 4 Coating layer thickness (mm) 0.25 0.5 1.0 1.5 burglar(%) 80.9 83.7 85.3 85.5
  • a secondary granule was prepared in which a coating layer of 1.0 mm was formed on the surface of the primary granule.
  • the secondary granules prepared as described above were supplied with exhaust gas to perform a curing process, but the curing process was performed while changing the concentration of CO 2 in the exhaust gas. Thereafter, the strength of the granulated material was measured, and the strength was measured in the same manner as in Experimental Examples 1 to 4.
  • the strength of the granules is improved as the concentration of CO 2 in the exhaust gas increases.
  • the strength of the granulated material is reduced. That is, the strength of the granulated product is increased up to about 5% of the CO 2 concentration in the flue gas, but the strength of the granulated product is decreased when the CO 2 concentration is 7%.
  • the curing process can be performed by controlling the CO 2 concentration in the exhaust gas in the range of about 3 to 7%.
  • a secondary granule was prepared in which a coating layer of 1.0 mm was formed on the surface of the primary granule.
  • the secondary granules thus prepared were supplied with exhaust gas to perform a curing process, but the curing process was performed while changing the moisture content of the exhaust gas. Thereafter, the strength of the granulated material was measured, and the strength was measured in the same manner as in Experimental Examples 1 to 8.
  • the strength of the granules is lowered as the moisture content of the exhaust gas increases.
  • the exhaust gas contains a certain amount of moisture, but there is a problem that it is difficult to completely remove it. Therefore, as shown in Table 3, even if the moisture contained in the flue gas to some extent does not significantly affect the strength of the granules, the granules can be cured by adjusting the moisture in the flue gas within a certain range, such as 3 to 10%. .
  • Such moisture content control in the flue gas may be performed by introducing air to cool the flue gas.
  • the raw material processing apparatus, the raw material processing method, and the granulated material produced using the same according to the present invention can be used as a blended raw material for producing a sintered ore.

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PCT/KR2016/011801 2015-10-23 2016-10-20 원료 처리 장치, 원료 처리 방법 및 이를 이용하여 제조된 조립물 WO2017069526A1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201680061936.2A CN108138257A (zh) 2015-10-23 2016-10-20 用于处理原料的设备、处理原料的方法及使用其制造的粒料
EP16857784.9A EP3366791A1 (en) 2015-10-23 2016-10-20 Apparatus for processing raw material, method of processing raw material, and granules manufactured using same
JP2018520616A JP6734370B2 (ja) 2015-10-23 2016-10-20 原料処理装置及び原料処理方法

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KR1020150147701A KR101696328B1 (ko) 2015-10-23 2015-10-23 원료 처리 장치, 원료 처리 방법 및 이를 이용하여 제조된 조립물
KR10-2015-0147701 2015-10-23

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KR102139635B1 (ko) * 2018-07-26 2020-07-30 주식회사 포스코 소결광 제조 방법 및 소결 배합 원료
CN110846498A (zh) * 2019-12-03 2020-02-28 马鞍山钢铁股份有限公司 一种烧结矿及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR900007450B1 (ko) * 1987-12-28 1990-10-10 포항종합제철 주식회사 비소성펠릿의 제조방법
JPH0971824A (ja) * 1995-09-05 1997-03-18 Nkk Corp 非焼成塊成鉱の製造方法
KR20040050002A (ko) * 2002-12-09 2004-06-14 백상진 제강용 첨가제의 제조방법
KR20130070827A (ko) * 2011-12-20 2013-06-28 주식회사 포스코 극미분 펠렛 광석을 이용한 소결광 제조방법
KR20130102150A (ko) * 2012-03-07 2013-09-17 김재욱 연속식 압출성형 경량콘크리트패널 제조방법

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2061346C3 (de) * 1970-12-12 1974-10-10 Huettenwerk Oberhausen Ag, 4200 Oberhausen Verfahren zur Vorbereitung von Eisenerzpellets zur Direktreduktion im Fest- und Wanderbett
US4168966A (en) * 1975-06-14 1979-09-25 Nippon Steel Corporation Agglomerates for use in a blast furnace and method of making the same
IN167132B (zh) * 1986-12-15 1990-09-01 Nippon Kokan Kk
DE4234085A1 (de) * 1992-10-09 1994-04-14 Metallgesellschaft Ag Verfahren zum Hartbrennen von eisenoxidhaltigen Pellets
JP4599737B2 (ja) * 2001-03-23 2010-12-15 Ｊｆｅスチール株式会社 焼結原料の造粒方法
CN100342041C (zh) * 2006-01-10 2007-10-10 许贵宾 熔剂性铁矿粉复合球团的生产方法
JP2009030114A (ja) 2007-07-27 2009-02-12 Jfe Steel Kk 高炉用鉱石原料の製造方法
CN101613800B (zh) * 2009-07-17 2011-03-23 重庆瑞帆再生资源开发有限公司 采用两次成球方式制作的冶金复合球团、制备方法及应用
CN102653822B (zh) * 2012-04-27 2014-10-01 宝钢集团有限公司 一种熔融还原炼铁含铁固体副产物及其生产方法
CN102732670A (zh) * 2012-07-11 2012-10-17 河北联合大学 利用碳酸化工艺处理含铁粉尘再生利用方法
EP2848299B1 (de) * 2013-09-11 2019-08-14 Primetals Technologies Austria GmbH Verfahren und vorrichtung zur herstellung von granulaten

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR900007450B1 (ko) * 1987-12-28 1990-10-10 포항종합제철 주식회사 비소성펠릿의 제조방법
JPH0971824A (ja) * 1995-09-05 1997-03-18 Nkk Corp 非焼成塊成鉱の製造方法
KR20040050002A (ko) * 2002-12-09 2004-06-14 백상진 제강용 첨가제의 제조방법
KR20130070827A (ko) * 2011-12-20 2013-06-28 주식회사 포스코 극미분 펠렛 광석을 이용한 소결광 제조방법
KR20130102150A (ko) * 2012-03-07 2013-09-17 김재욱 연속식 압출성형 경량콘크리트패널 제조방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3366791A4 *

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KR101696328B1 (ko) 2017-01-13
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