CN109371229A - The production technology of sinter - Google Patents

The production technology of sinter Download PDF

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CN109371229A
CN109371229A CN201811477947.6A CN201811477947A CN109371229A CN 109371229 A CN109371229 A CN 109371229A CN 201811477947 A CN201811477947 A CN 201811477947A CN 109371229 A CN109371229 A CN 109371229A
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powder
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cao
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CN109371229B (en
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潘康信
张艳
陈嘉禄
李义民
陆袁魏
秦丽丽
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Jiangsu Yonggang Group Co Ltd
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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
    • C22B1/16—Sintering; Agglomerating
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/008—Composition or distribution of the charge
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
    • 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
    • Y02P10/25—Process efficiency

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  • Metallurgy (AREA)
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  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Compositions Of Oxide Ceramics (AREA)
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Abstract

The invention discloses the production technologies of sinter, steps are as follows: ingredient → plus cooling → being crushed → the screening whole grain of water mixing → cloth → logical blast furnace gas ignition → down draft sintering → air blast, (1) each raw material weight proportioning of soup processed in formula are as follows: Brazilian SSFT powder: 7.14~8.94%, Mauritanian powder: 6.42~8.04%, Sierra Leone powder: 6.42~8.04%, low product India ore powder: 2.86~3.58%, Newman powder: 21.13~26.46%, Philippine's sea sand coarse powder: 2.28~2.86%, Iranian powder: 3.43~4.29%, iron oxide: 1.71~2.15%, BF return fines: 5.71~7.15%, it inside returns mine: 15.1~18.9%, lime stone: 4~5%, dolomite: 6.2 2~7.78%, quick lime: 2.66~3.34%, coke powder: 3.73~4.67%；(2) moisture accounting is 7.0~7.6% in mixture；(3) thickness of feed layer is 740~790mm；(4) firing temperature is 1080 ± 50 DEG C；(5) suction pressure is -14.0~-17.0Kpa；(6) sintering machine speed is 1.8~2.3m/min.The cost of the sinter of above-mentioned production technology production is low, and ore removal rate reaches 62.41%, and drum strength reaches 64.27%, and solid burnup is reduced to 59.89 Kg/t.

Description

The production technology of sinter
Technical field
The present invention relates to blast furnace ironmaking raw material fields, and in particular to a kind of production technology of sinter.
Background technique
Sinter is a kind of blast furnace ironmaking raw material, a kind of existing production technology of sinter, production technology formula used In each raw material weight proportion are as follows: Brazilian SSFT powder: 22.72%, low product India ore powder: 3.25%, Newman powder: 24.01%, Fei Lv Guest's sea sand coarse powder: 2.6%, Iranian powder: 3.89%, iron oxide: 1.95%, BF return fines: 6.49%, inside return mine: 17%, lime stone: 3.9%, dolomite: 7%, quick lime: 3%, coke powder: 4.2%.Ore removal rate using the sinter of above-mentioned formula production only has 56.47%, drum strength only has 59.2%, and solid burnup then reaches 66.2Kg/t.
Summary of the invention
The technical problems to be solved by the present invention are: will provide a kind of can improve ore removal rate and drum strength, reduce solid The production technology of the sinter of burnup.
To solve the above-mentioned problems, the technical solution adopted by the present invention is that: the production technology of sinter, processing step is such as Under: ingredient → plus cooling → being crushed → the screening whole grain of water mixing → cloth → logical blast furnace gas ignition → down draft sintering → air blast, It is characterized by:
(1) in burden process: sorting is carried out according to formula first, the weight proportion of each raw material in formula are as follows: Brazilian SSFT powder: 7.14~8.94%, Mauritanian powder: 6.42~8.04%, Sierra Leone powder: 6.42~8.04%, low product India ore powder: 2.86~ 3.58%, Newman powder: 21.13~26.46%, Philippine's sea sand coarse powder: 2.28~2.86%, Iranian powder: 3.43~4.29%, oxidation Iron: 1.71~2.15%, BF return fines: 5.71~7.15%, inside return mine: 15.1~18.9%, lime stone: 4~5%, dolomite: 6.22~7.78%, quick lime: 2.66~3.34%, coke powder: 3.73~4.67%；
(2) plus in water compounding process: moisture content accounting is 7.0~7.6% in the mixture that mixed raw material obtains；
(3) in cloth material process: thickness of feed layer is 740~790mm；
(4) lead in blast furnace gas ignition process: firing temperature is 1080 ± 50 DEG C；
(5) in down draft sintering process: suction pressure is -14.0~-17.0Kpa；
(6) sintering machine speed is 1.8~2.3m/min.
Further, the production technology of sinter above-mentioned, in which: Brazilian SSFT powder: 8.04%, Mauritanian powder: 7.23%, Sierra Leone powder: 7.23%, low product India ore powder: 3.22%, Newman powder: 23.79%, Philippine's sea sand coarse powder: 2.57%, she Lang Fen: 3.86%, iron oxide: 1.93%, BF return fines: 6.43%, inside return mine: 17%, lime stone: 4.3%, dolomite: 7%, raw stone Ash: 3.2%, coke powder: 4.2%.
Further, the production technology of sinter above-mentioned, in which: the weight content requirement of each ingredient in Brazilian SSFT powder It is as follows: TFe:62.48%, Si02: 5.13%, CaO:0.02%, MgO:0.04%, Al2O3: 1.39%, Mn:0.21%, P:0.05%, S:0.02%, scaling loss 2.81%, moisture 5%；The weight content of each ingredient requires as follows in Mauritanian powder: TFe:60%, Si02: 8.8%, CaO:0.06%, MgO:0.07%, Al2O3: 0.94%, Mn:0.13%, P:0.08%, S:0.03%, scaling loss are 1.5%, moisture 3%；The weight content of each ingredient requires as follows in the powder of Sierra Leone: TFe:64.58%, Si02: 3.61%, CaO: 0.03%, MgO:0.15%, Al2O3: 1.67%, Mn:0.64%, P:0.02%, S:0.01%, scaling loss 0.81%, moisture 5.5%； The weight content of each ingredient requires as follows in low product India ore powder: TFe:53.84%, Si02: 8.6%, CaO:0.01%, MgO:0.1%, Al2O3: 2.22%, Mn:3.4%, P:0.05%, S:0.38%, scaling loss 5.9%, moisture 4%；The weight of each ingredient contains in Newman powder Amount requires as follows: TFe:61.28%, Si02: 5.4%, CaO:0.06%, MgO:0.05%, Al2O3: 2.87%, Mn:0.11%, P: 0.07%, S:0.02%, scaling loss 3.5%, moisture 4.6%；The weight content of each ingredient requires as follows in Philippine's sea sand coarse powder: TFe:58.9%, Si02: 5.6%, CaO:1.18%, MgO:1.22%, Al2O3: 2.3%, Mn:0.39%, P:0.07%, S:0.01%, Scaling loss is -2.21%, moisture 6%；The weight content of each ingredient requires as follows in Iranian powder: TFe:55%, Si02: 11%, CaO: 0.17%, MgO:0.13%, Al2O3: 3%, Mn:0.65%, P:0.05%, S:0.05%, scaling loss 4.9%, moisture 4.5%；Oxidation The weight content of each ingredient requires as follows in iron: TFe:72.9%, Si02: 1.21%, CaO:0.54%, MgO:0.07%, Al2O3: 0.19%, Mn:0.85%, P:0.03%, S:0.04%, scaling loss are -5.72%, moisture 8%；The weight of each ingredient contains in BF return fines Amount requires as follows: TFe:57.47%, Si02: 5.52%, CaO:9.01%, MgO:2.64%, Al2O3: 2.14%, Mn:0.3%, P: 0.1%, S:0.02%, scaling loss 1.5%, moisture 1%；The weight content requirement of each ingredient is as follows in inside returning mine: TFe:54.8%, Si02: 5.29%, CaO:10.2%, MgO:2.6%, Al2O3: 1.59%, Mn:0.28%, P:0.06%, S:0.03%, scaling loss 1%, Moisture is 0；The weight content of each ingredient requires as follows in lime stone: Si02: 1.69%, CaO:52.83%, MgO:1.49%, Al2O3: 0.2%, P:0.01%, S:0.02%, scaling loss 42.55%, moisture 4%；The weight content requirement of each ingredient in dolomite It is as follows: Si02: 1.45%, CaO:30.5%, MgO:20.6%, Al2O3: 0.2%, P:0.01%, S:0.02%, scaling loss are 45.03%, moisture 4%；The weight content of each ingredient requires as follows in quick lime: Si02: 1.88%, CaO:91.4%, MgO: 1.26%, Al2O3: 0.4%, P:0.01%, S:0.02%, scaling loss 5%；The weight content of each ingredient requires as follows in coke powder: C: 78%, S:0.8%, scaling loss 81%, moisture 11%.
Further, the production technology of sinter above-mentioned, in which: add in water compounding process: mixed raw material obtains mixed Closing moisture content accounting in material is 7.3%.
Further, the production technology of sinter above-mentioned, in which: in cloth material process: thickness of feed layer 780mm.
Further, the production technology of sinter above-mentioned, in which: in logical blast furnace gas ignition process: firing temperature is 1080℃。
Further, the production technology of sinter above-mentioned, in which: in down draft sintering process: suction pressure be- 15.0Kpa；Sintering machine speed is 2.0m/min.
Advantages of the present invention are as follows: the ore removal rate of the sinter of the production technology production of sinter of the present invention can reach 62.41%, drum strength can reach 64.27%, and solid burnup can be reduced to 59.89 Kg/t, in addition, the Mauritania used Powder and Sierra Leone powder relatively have biggish price advantage with the Brazilian SSFT powder of grade, so using Mauritanian powder and plug Draw Leon powder substitution part Brazil SSFT powder that can substantially reduce cost of material.
Specific embodiment
The present invention is described in further detail combined with specific embodiments below.
The production technology of sinter, processing step are as follows: ingredient → plus water mixing → cloth → logical blast furnace gas ignition Screening whole grain that → down draft sintering → air blast is cooling → being crushed →,
(1) in burden process: sorting is carried out according to formula first, the weight proportion of each raw material in formula are as follows: Brazilian SSFT powder: 8.04%, Mauritanian powder: 7.23%, Sierra Leone powder: 7.23%, low product India ore powder: 3.22%, Newman powder: 23.79%, Fei Lv Guest's sea sand coarse powder: 2.57%, Iranian powder: 3.86%, iron oxide: 1.93%, BF return fines: 6.43%, inside return mine: 17%, lime stone: 4.3%, dolomite: 7%, quick lime: 3.2%, coke powder: 4.2%；
(2) plus in water compounding process: moisture content accounting is 7.3% in the mixture that mixed raw material obtains；
(3) in cloth material process: thickness of feed layer 780mm；
(4) lead in blast furnace gas ignition process: firing temperature is 1080 DEG C；
(5) in down draft sintering process: suction pressure is -15.0Kpa；
(6) sintering machine speed is 2.0m/min.
Under normal conditions, in Brazilian SSFT powder each ingredient weight content are as follows: TFe:62~64%, Si02: 5.5~6.5%, CaO:0.02~0.2%, MgO:0.02~0.20%, Al2O3: 1.0~1.5%, P:0.03~0.08%, S:0.01~0.08%, Mn:0.1~0.50%, moisture are 5~10%, and scaling loss is 1.5~3.50%；The weight content of each ingredient in Mauritanian powder are as follows: TFe:59~62%, Si02: 8~11%, CaO:0.02~0.2%, MgO:0.02~0.20%, Al2O3: 0.6~1.2%, P:0.05 ~0.1%, S:0.01~0.08%, Mn:0.1~0.50%, moisture are 2~7%, and scaling loss is 0.5~2.50%；In the powder of Sierra Leone The weight content of each ingredient are as follows: TFe:62~65%, Si02: 3~5%, CaO:0.02~0.2%, MgO:0.02~0.20%, Al2O3: 1.6~2.2%, P:0.01~0.09%, S:0.004~0.06%, Mn:0.3~0.80%, moisture are 4~8%, and scaling loss is 0.5~2.0%；The weight content of each ingredient in low product India ore powder are as follows: TFe:53~56%, Si02: 6~9%, CaO:0.01~ 0.2%, MgO:0.02~0.20%, Al2O3: 2.0~3.5%, P:0.03~0.08%, S:0.05~0.5%, Mn:0.2~4%, water It is divided into 4~12%, scaling loss is 3~8%；The weight content of each ingredient in Newman powder are as follows: TFe:61~63.5%, Si02: 4.2~ 5.5%, CaO:0.02~0.15%, MgO:0.02~0.15%, Al2O3: 2.05~2.9%, P:0.06~0.1%, S:0.02~ 0.05%, Mn:0.02~0.2%, moisture are 4~9%, and scaling loss is 2.5~4.5%；The weight of each ingredient in Philippine's sea sand coarse powder Content are as follows: TFe:56.5~59%, Si02: 5~6%, CaO:0.05~1.5%, MgO:0.1~1.8%, Al2O3: 2.0~3.0%, P:0.05~0.1%, S:0.005~0.1%, Mn:0.1~0.5%, moisture are 3~8%, and scaling loss is -3.0~-1.0%；Iranian powder In each ingredient weight content are as follows: TFe:55~61%, Si02: 6~11%, CaO:0.02~0.2%, MgO:0.02~0.2%, Al2O3: 2.0~3.0%, P:0.03~0.1%, S:0.01~0.08%, Mn:0.2~0.8%, moisture are 3.5~8.5%, and scaling loss is 2.5~5.5%；The weight content of each ingredient in iron oxide are as follows: TFe:70~73%, Si02: 1.0~2.0%, CaO:0.1~ 0.8%, MgO:0.02~0.2%, Al2O3: 0.15~1.2%, P:0.02~0.08%, S:0.01~0.08%, Mn:0.2~ 1.0%, moisture is 3~12%, and scaling loss is -6~-4%；The weight content of each ingredient in BF return fines are as follows: TFe:55~58%, Si02: 5~5.8%, CaO:5~11%, MgO:1.5~3.5%, Al2O3: 1.8~2.4%, P:0.06~0.1%, S:0.01~ 0.06%, Mn:0.2~0.6%, moisture are 1~5%, and scaling loss is 1~3%；The weight content of each ingredient in inside returning mine are as follows: TFe:54 ~57%, Si02: 5~5.8%, CaO:8.5~13.5%, MgO:1.8~2.6%, Al2O3: 1.5~2.4%, P:0.02~0.1%, S:0.01~0.06%, Mn:0.1~0.6%, moisture are 0~1%, and scaling loss is 0.2~1.5%；The weight of each ingredient contains in lime stone Amount are as follows: Si02: 0.7~3%, CaO:50~54%, MgO:0.1~5%, Al2O3: 0.1~1.5%, P:0.001~0.10%, S: 0.005~0.1%, moisture is 1~5%, and scaling loss is 40~45%；The weight content of each ingredient in dolomite are as follows: Si02: 0.8~ 3.5%, CaO:29~33%, MgO:18~23%, Al2O3: 0.1~1.5%, P:0.001~0.10%, S:0.005~0.1%, water It is divided into 1~5%, scaling loss is 40~47%；The weight content of each ingredient in quick lime are as follows: Si02: 1~5%, CaO:75~94%, MgO:0.2~5%, Al2O3: 0.1~1.5%, P:0.01~0.10%, S:0.01~0.2%, scaling loss are 4.0~15%；In coke powder The weight content of each ingredient are as follows: C:78~87%, S:0.4~1%, scaling loss are 78~85%, and moisture is 6.0~16%.
In the present embodiment, the weight content requirement of each ingredient is as follows in Brazilian SSFT powder: TFe:62.48%, Si02: 5.13%, CaO:0.02%, MgO:0.04%, Al2O3: 1.39%, Mn:0.21%, P:0.05%, S:0.02%, scaling loss 2.81%, water It is divided into 5%；The weight content of each ingredient requires as follows in Mauritanian powder: TFe:60%, Si02: 8.8%, CaO:0.06%, MgO:0.07%, Al2O3: 0.94%, Mn:0.13%, P:0.08%, S:0.03%, scaling loss 1.5%, moisture 3%；Sierra Leone powder In each ingredient weight content require it is as follows: TFe:64.58%, Si02: 3.61%, CaO:0.03%, MgO:0.15%, Al2O3: 1.67%, Mn:0.64%, P:0.02%, S:0.01%, scaling loss 0.81%, moisture 5.5%；The weight of each ingredient in low product India ore powder It is as follows to measure content requirement: TFe:53.84%, Si02: 8.6%, CaO:0.01%, MgO:0.1%, Al2O3: 2.22%, Mn:3.4%, P: 0.05%, S:0.38%, scaling loss 5.9%, moisture 4%；The weight content of each ingredient requires as follows in Newman powder: TFe: 61.28%, Si02: 5.4%, CaO:0.06%, MgO:0.05%, Al2O3: 2.87%, Mn:0.11%, P:0.07%, S:0.02% are burnt Damage is 3.5%, moisture 4.6%；The weight content of each ingredient requires as follows in Philippine's sea sand coarse powder: TFe:58.9%, Si02: 5.6%, CaO:1.18%, MgO:1.22%, Al2O3: 2.3%, Mn:0.39%, P:0.07%, S:0.01%, scaling loss are -2.21%, water It is divided into 6%；The weight content of each ingredient requires as follows in Iranian powder: TFe:55%, Si02: 11%, CaO:0.17%, MgO:0.13%, Al2O3: 3%, Mn:0.65%, P:0.05%, S:0.05%, scaling loss 4.9%, moisture 4.5%；The weight of each ingredient contains in iron oxide Amount requires as follows: TFe:72.9%, Si02: 1.21%, CaO:0.54%, MgO:0.07%, Al2O3: 0.19%, Mn:0.85%, P: 0.03%, S:0.04%, scaling loss are -5.72%, moisture 8%；The weight content of each ingredient requires as follows in BF return fines: TFe: 57.47%, Si02: 5.52%, CaO:9.01%, MgO:2.64%, Al2O3: 2.14%, Mn:0.3%, P:0.1%, S:0.02%, scaling loss It is 1.5%, moisture 1%；The weight content requirement of each ingredient is as follows in inside returning mine: TFe:54.8%, Si02: 5.29%, CaO: 10.2%, MgO:2.6%, Al2O3: 1.59%, Mn:0.28%, P:0.06%, S:0.03%, scaling loss 1%, moisture 0；In lime stone The weight content of each ingredient requires as follows: Si02: 1.69%, CaO:52.83%, MgO:1.49%, Al2O3: 0.2%, P: 0.01%, S:0.02%, scaling loss 42.55%, moisture 4%；The weight content of each ingredient requires as follows in dolomite: Si02: 1.45%, CaO:30.5%, MgO:20.6%, Al2O3: 0.2%, P:0.01%, S:0.02%, scaling loss 45.03%, moisture 4%； The weight content of each ingredient requires as follows in quick lime: Si02: 1.88%, CaO:91.4%, MgO:1.26%, Al2O3: 0.4%, P:0.01%, S:0.02%, scaling loss 5%；The weight content of each ingredient requires as follows in coke powder: C:78%, S:0.8%, scaling loss are 81%, moisture 11%.

Claims (7)

1. the production technology of sinter, processing step are as follows: the logical blast furnace gas ignition of ingredient → plus water mixing → cloth → → Screening whole grain that down draft sintering → air blast is cooling → being crushed →, it is characterised in that:
(1) in burden process: sorting is carried out according to formula first, the weight proportion of each raw material in formula are as follows: Brazilian SSFT powder: 7.14~8.94%, Mauritanian powder: 6.42~8.04%, Sierra Leone powder: 6.42~8.04%, low product India ore powder: 2.86~ 3.58%, Newman powder: 21.13~26.46%, Philippine's sea sand coarse powder: 2.28~2.86%, Iranian powder: 3.43~4.29%, oxidation Iron: 1.71~2.15%, BF return fines: 5.71~7.15%, inside return mine: 15.1~18.9%, lime stone: 4~5%, dolomite: 6.22~7.78%, quick lime: 2.66~3.34%, coke powder: 3.73~4.67%；
(2) plus in water compounding process: moisture content accounting is 7.0~7.6% in the mixture that mixed raw material obtains；
(3) in cloth material process: thickness of feed layer is 740~790mm；
(4) lead in blast furnace gas ignition process: firing temperature is 1080 ± 50 DEG C；
(5) in down draft sintering process: suction pressure is -14.0~-17.0Kpa；
(6) sintering machine speed is 1.8~2.3m/min.
2. the production technology of sinter according to claim 1, it is characterised in that: Brazilian SSFT powder: 8.04%, Mao Lita Buddhist nun Asia powder: 7.23%, Sierra Leone powder: 7.23%, low product India ore powder: 3.22%, Newman powder: 23.79%, Philippine's sea sand coarse powder: 2.57%, Iranian powder: 3.86%, iron oxide: 1.93%, BF return fines: 6.43%, inside return mine: 17%, lime stone: 4.3%, dolomite: 7%, quick lime: 3.2%, coke powder: 4.2%.
3. the production technology of sinter according to claim 1 or 2, it is characterised in that: each ingredient in Brazilian SSFT powder Weight content requires as follows: TFe:62.48%, Si02: 5.13%, CaO:0.02%, MgO:0.04%, Al2O3: 1.39%, Mn: 0.21%, P:0.05%, S:0.02%, scaling loss 2.81%, moisture 5%；The weight content requirement of each ingredient in Mauritanian powder It is as follows: TFe:60%, Si02: 8.8%, CaO:0.06%, MgO:0.07%, Al2O3: 0.94%, Mn:0.13%, P:0.08%, S: 0.03%, scaling loss 1.5%, moisture 3%；The weight content of each ingredient requires as follows in the powder of Sierra Leone: TFe:64.58%, Si02: 3.61%, CaO:0.03%, MgO:0.15%, Al2O3: 1.67%, Mn:0.64%, P:0.02%, S:0.01%, scaling loss are 0.81%, moisture 5.5%；The weight content of each ingredient requires as follows in low product India ore powder: TFe:53.84%, Si02: 8.6%, CaO:0.01%, MgO:0.1%, Al2O3: 2.22%, Mn:3.4%, P:0.05%, S:0.38%, scaling loss 5.9%, moisture 4%；Knob The weight content of each ingredient requires as follows in graceful powder: TFe:61.28%, Si02: 5.4%, CaO:0.06%, MgO:0.05%, Al2O3: 2.87%, Mn:0.11%, P:0.07%, S:0.02%, scaling loss 3.5%, moisture 4.6%；It is each in Philippine's sea sand coarse powder The weight content of ingredient requires as follows: TFe:58.9%, Si02: 5.6%, CaO:1.18%, MgO:1.22%, Al2O3: 2.3%, Mn: 0.39%, P:0.07%, S:0.01%, scaling loss are -2.21%, moisture 6%；The weight content of each ingredient requires as follows in Iranian powder: TFe:55%, Si02: 11%, CaO:0.17%, MgO:0.13%, Al2O3: 3%, Mn:0.65%, P:0.05%, S:0.05%, scaling loss are 4.9%, moisture 4.5%；The weight content of each ingredient requires as follows in iron oxide: TFe:72.9%, Si02: 1.21%, CaO: 0.54%, MgO:0.07%, Al2O3: 0.19%, Mn:0.85%, P:0.03%, S:0.04%, scaling loss are -5.72%, moisture 8%；It is high Furnace return mine in each ingredient weight content requirement it is as follows: TFe:57.47%, Si02: 5.52%, CaO:9.01%, MgO:2.64%, Al2O3: 2.14%, Mn:0.3%, P:0.1%, S:0.02%, scaling loss 1.5%, moisture 1%；The weight of each ingredient contains in inside returning mine Amount requires as follows: TFe:54.8%, Si02: 5.29%, CaO:10.2%, MgO:2.6%, Al2O3: 1.59%, Mn:0.28%, P: 0.06%, S:0.03%, scaling loss 1%, moisture 0；The weight content of each ingredient requires as follows in lime stone: Si02: 1.69%, CaO:52.83%, MgO:1.49%, Al2O3: 0.2%, P:0.01%, S:0.02%, scaling loss 42.55%, moisture 4%；Dolomite In each ingredient weight content require it is as follows: Si02: 1.45%, CaO:30.5%, MgO:20.6%, Al2O3: 0.2%, P: 0.01%, S:0.02%, scaling loss 45.03%, moisture 4%；The weight content of each ingredient requires as follows in quick lime: Si02: 1.88%, CaO:91.4%, MgO:1.26%, Al2O3: 0.4%, P:0.01%, S:0.02%, scaling loss 5%；Each ingredient in coke powder Weight content requires as follows: C:78%, S:0.8%, scaling loss 81%, moisture 11%.
4. the production technology of sinter according to claim 1 or 2, it is characterised in that: add in water compounding process: mixing is former Expect that moisture content accounting is 7.3% in obtained mixture.
5. the production technology of sinter according to claim 1 or 2, it is characterised in that: in cloth material process: thickness of feed layer is 780mm。
6. the production technology of sinter according to claim 1 or 2, it is characterised in that: in logical blast furnace gas ignition process: Firing temperature is 1080 DEG C.
7. the production technology of sinter according to claim 1 or 2, it is characterised in that: in down draft sintering process: exhausting is negative Pressure is -15.0Kpa；Sintering machine speed is 2.0m/min.
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CN110066896A (en) * 2019-04-28 2019-07-30 山东钢铁集团有限公司 A kind of blast furnace is with addition of high alumina Sierra Leone mining and metallurgy smelting method
CN113005284A (en) * 2021-01-27 2021-06-22 日照钢铁控股集团有限公司 Application method of titanium-containing sea sand in sinter production

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CN107460310A (en) * 2017-08-09 2017-12-12 包头钢铁（集团）有限责任公司 A kind of method for preparing sintering deposit
CN108929948A (en) * 2018-07-26 2018-12-04 上海慧安科技股份有限公司 A kind of iron ore mixing powder dropping sheet, synergy using Sierra Leone coarse powder

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CN104988305A (en) * 2015-07-14 2015-10-21 江苏永钢集团有限公司 Production process of acid sinter
CN107460310A (en) * 2017-08-09 2017-12-12 包头钢铁（集团）有限责任公司 A kind of method for preparing sintering deposit
CN108929948A (en) * 2018-07-26 2018-12-04 上海慧安科技股份有限公司 A kind of iron ore mixing powder dropping sheet, synergy using Sierra Leone coarse powder

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110066896A (en) * 2019-04-28 2019-07-30 山东钢铁集团有限公司 A kind of blast furnace is with addition of high alumina Sierra Leone mining and metallurgy smelting method
CN113005284A (en) * 2021-01-27 2021-06-22 日照钢铁控股集团有限公司 Application method of titanium-containing sea sand in sinter production

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