CN108018417A - Steelmaking converter slagging agent and preparation method thereof - Google Patents

Steelmaking converter slagging agent and preparation method thereof Download PDF

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Publication number
CN108018417A
CN108018417A CN201711308607.6A CN201711308607A CN108018417A CN 108018417 A CN108018417 A CN 108018417A CN 201711308607 A CN201711308607 A CN 201711308607A CN 108018417 A CN108018417 A CN 108018417A
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CN
China
Prior art keywords
steel
dedusting ash
slagging agent
steelmaking converter
agent
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.)
Pending
Application number
CN201711308607.6A
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Chinese (zh)
Inventor
黎光正
陈涛
毛朋
张昕
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.)
Panzhihua Gangcheng Group Co Ltd
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Panzhihua Gangcheng Group Co Ltd
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 Panzhihua Gangcheng Group Co Ltd filed Critical Panzhihua Gangcheng Group Co Ltd
Priority to CN201711308607.6A priority Critical patent/CN108018417A/en
Publication of CN108018417A publication Critical patent/CN108018417A/en
Pending legal-status Critical Current

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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
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • 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
    • C21C5/36—Processes yielding slags of special composition
    • 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
    • C22B1/2406—Binding; Briquetting ; Granulating pelletizing
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The present invention relates to STEELMAKING PRODUCTION field, it is especially a kind of to solve steel-making dedusting ash discharge pollution on the environment, steelmaking converter slagging agent of recycling so as to fulfill resource and preparation method thereof, the slagging agent is made of following component by mass percentage：Make steel dedusting ash 35%~45%, steel-smelting sewage sludge 5% 15%, quartz sand 40% 50%, cement 5%~10%, bonding agent 0.5%~1%.The present invention is cleverly recycled for a large amount of steel-making dedusting ash that industrial production produces, efficiently solve steel-making dedusting ash discharge pollution on the environment, realize the recycling of resource, generate preferable economic benefit, also there is preferable social benefit at the same time, market promotion prospect is very wide.Among recycling present invention is particularly suitable for steel-making dedusting ash.

Description

Steelmaking converter slagging agent and preparation method thereof
Technical field
The present invention relates to STEELMAKING PRODUCTION field, especially a kind of steelmaking converter slagging agent and preparation method thereof.
Background technology
Climb in steel steel mill steelmaking process and produce substantial amounts of flue dust, substantial amounts of dedusting ash is produced after dry method dust, Dedusting ash year about 20,000 tons of yield.Dedusting ash has the characteristics that fine size, TFe be relatively low, CaO higher.Part dedusting ash is by steel scrap Factory returns again to ironmaking and adds sinter into blast furnace utilization after being recycled, but since the TFe of dedusting ash is relatively low, moisture content weight, it is right The normal production of sintering and sinter quality have a great influence, and dosage is still smaller.Therefore steel mill is big to dedusting ash stacking keeping pressure, Secondary environmental pollution is be easy to cause at the same time, influences STEELMAKING PRODUCTION direct motion.Fully rationally to utilize dedusting ash secondary resource, refining is reduced Steel production cost, realize environmental protection, efficiently, energy-saving steel-making, by analyzing the chemical composition and characteristic of dedusting ash, with reference to climbing steel half steel The characteristics of steel-making, all oxidation, manganese largely aoxidize the half steel silicon after vanadium extraction by converter blowing, and steelmaking process slag making is difficult, makes steel Cheng Zhongxu is with addition of SiO2To adjust basicity of slag.Therefore according to this feature, it is determined that with dedusting ash with addition of face dewatered sludge, quartz Sand and bonding agent compacting balling-up, produce converter slagging agent.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of steel-making dedusting ash that solves and discharge pollution on the environment, Steelmaking converter slagging agent of recycling so as to fulfill resource and preparation method thereof.
The technical solution adopted by the present invention to solve the technical problems is：Steelmaking converter slagging agent, the slagging agent press matter Amount percentages are made of following component：Make steel dedusting ash 35%~45%, steel-smelting sewage sludge 5%-15%, quartz sand 40%- 50%th, cement 5%~10%, bonding agent 0.5%~1%.
It is further that the mass percent of the main chemical compositions of the steel-making dedusting ash is respectively TFe：15-50%, SiO2:7-20%, CaO:8-25%, P≤0.1%, S≤0.5%.
Be further, the mass percents of the main chemical compositions of the steel-smelting sewage sludge be respectively TFe40-55%, SiO2:4-8%, CaO5-10%, P≤0.1%, S≤0.1%.
It is further that the preparation method of steelmaking converter slagging agent, includes the following steps：
A, it is mixed after weighing raw material by the weight proportion：Make steel dedusting ash 35%~45%, steel-smelting sewage sludge 5%- 15%th, quartz sand 40%-50%, cement 5%~10%, soda ash 0.5%~1%；
B, after stirring evenly, the re-compacted oval or round pelletizing into 30mm~50mm；
C, above-mentioned pelletizing is dried, finally obtains product.
The beneficial effects of the invention are as follows：The present invention has carried out cleverly for a large amount of steel-making dedusting ash that industrial production produces Recycle, efficiently solve steel-making dedusting ash discharge pollution on the environment, realize the recycling of resource, produce Preferable economic benefit, while also have preferable social benefit, market promotion prospect is very wide.The present invention is especially suitable For making steel among the recycling of dedusting ash.
Embodiment
Steelmaking converter slagging agent, the slagging agent are made of following component by mass percentage：Make steel dedusting ash 35%~45%, steel-smelting sewage sludge 5%-15%, quartz sand 40%-50%, cement 5%~10%, bonding agent 0.5%~1%.
The new slagging agent of pelletizing shape is made for steelmaking converter slugging using addition partial supplementary material and bonding agent in this method, Its production technology is broadly divided into following steps：Make steel hydration process-steel-making dedusting ash of dedusting ash, steel-smelting sewage sludge and auxiliary Material, preparation-dispensing-batch mixing stirring-ball press pressure ball-of bonding agent freeze off-toast-finished product naturally.
In order to realize more preferably product quality, following technical solution can be selected：Mainization of the steel-making dedusting ash The mass percent studied point is respectively TFe：15-50%, SiO2:7-20%, CaO:8-25%, P≤0.1%, S≤0.5%. The mass percent of the main chemical compositions of the steel-smelting sewage sludge is respectively TFe40-55%, SiO2:4-8%, CaO5- 10%th, P≤0.1%, S≤0.1%.
The preparation method of above-mentioned steelmaking converter slagging agent includes the following steps：A, mixed after weighing raw material by the weight proportion Close stirring：Make steel dedusting ash 35%~45%, steel-smelting sewage sludge 5%-15%, quartz sand 40%-50%, cement 5%~10%, pure Alkali 0.5%~1%；B, after stirring evenly, the re-compacted oval or round pelletizing into 30mm~50mm；C, above-mentioned pelletizing is done It is dry, finally obtain product.
Embodiment
Embodiment 1
It is made with the raw material pressure ball of weight proportion：Make steel dedusting ash ratio 45%；Steel-smelting sewage sludge 15%；Quartz sand 35%； Cement 5%, bonding agent 1%.
After this product compacting balling-up, the main physical and chemical index of its product：TFe >=16%, SiO2>=45%, CaO >=2, P≤ 0.1%th, S≤0.3%, granularity 30-50mm, moisture are less than 2%.Product adds in due course at the initial stage of bessemerizing, the rapid slagging of energy, Infusibility melting point substance is reduced, promotes clinker flowing, improves fluidity molten steel, guarantee technique is smooth, the quantity of slag reduces.
Embodiment 2
It is made with the raw material pressure ball of weight proportion：Make steel dedusting ash ratio 40%；Steel-smelting sewage sludge 10%；Quartz sand 42%； Cement 8%, bonding agent 0.5%.
After this product compacting balling-up, the main physical and chemical index of its product：TFe >=16%, SiO2>=45%, CaO >=2, P≤ 0.1%th, S≤0.3%, granularity 30-50mm, moisture are less than 2%.Product adds in due course at the initial stage of bessemerizing, the rapid slagging of energy, Infusibility melting point substance is reduced, promotes clinker flowing, improves fluidity molten steel, guarantee technique is smooth, the quantity of slag reduces.
The present invention is cleverly recycled for a large amount of steel-making dedusting ash that industrial production produces, and is efficiently solved Dedusting ash discharge pollution on the environment is made steel, the recycling of resource is realized, generates preferable economic benefit, together When also have preferable social benefit, market promotion prospect is very wide.

Claims (4)

1. steelmaking converter slagging agent, it is characterised in that：The slagging agent is made of following component by mass percentage：Steel-making Dedusting ash 35%~45%, steel-smelting sewage sludge 5%-15%, quartz sand 40%-50%, cement 5%~10%, bonding agent 0.5%~ 1%.
2. steelmaking converter slagging agent as claimed in claim 1, it is characterised in that：The main chemical compositions of the steel-making dedusting ash Mass percent be respectively TFe：15-50%, SiO2:7-20%, CaO:8-25%, P≤0.1%, S≤0.5%.
3. steelmaking converter slagging agent as claimed in claim 1, it is characterised in that：The main chemical compositions of the steel-smelting sewage sludge Mass percent be respectively TFe40-55%, SiO2:4-8%, CaO5-10%, P≤0.1%, S≤0.1%.
4. the preparation method of steelmaking converter slagging agent as claimed in claim 1, it is characterised in that include the following steps：
A, it is mixed after weighing raw material by the weight proportion：Make steel dedusting ash 35%~45%, steel-smelting sewage sludge 5%-15%, Quartz sand 40%-50%, cement 5%~10%, soda ash 0.5%~1%；
B, after stirring evenly, the re-compacted oval or round pelletizing into 30mm~50mm；
C, above-mentioned pelletizing is dried, finally obtains product.
CN201711308607.6A 2017-12-11 2017-12-11 Steelmaking converter slagging agent and preparation method thereof Pending CN108018417A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711308607.6A CN108018417A (en) 2017-12-11 2017-12-11 Steelmaking converter slagging agent and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711308607.6A CN108018417A (en) 2017-12-11 2017-12-11 Steelmaking converter slagging agent and preparation method thereof

Publications (1)

Publication Number Publication Date
CN108018417A true CN108018417A (en) 2018-05-11

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109321705A (en) * 2018-12-10 2019-02-12 攀枝花钢城集团有限公司 Environment-friendly type pneumatic steelmaking slagging agent and preparation method thereof
CN109338039A (en) * 2018-12-05 2019-02-15 钢城集团凉山瑞海实业有限公司 A kind of steelmaking converter slag former and preparation method thereof
CN110592374A (en) * 2019-10-21 2019-12-20 攀钢集团攀枝花钢铁研究院有限公司 Converter slag melting agent pellet and binder for forming same
CN110863077A (en) * 2019-12-18 2020-03-06 攀枝花钢城集团有限公司 Converter steelmaking slag former and preparation method thereof
CN110951934A (en) * 2019-12-20 2020-04-03 攀枝花钢城集团有限公司 Comprehensive utilization method of converter fly ash

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1333381A (en) * 2000-07-06 2002-01-30 伍发贵 Composite slag melting agent for steelmaking
CN101928806A (en) * 2009-06-26 2010-12-29 攀钢集团攀枝花钢铁研究院有限公司 Composite slagging agent for semi-steel making and preparation method thereof and semi-steel making method
CN102912068A (en) * 2012-10-19 2013-02-06 攀钢集团攀枝花钢钒有限公司 Slagging constituent for semisteel converter steelmaking and manufacturing method thereof
CN103484596A (en) * 2013-09-30 2014-01-01 攀钢集团攀枝花钢铁研究院有限公司 Semisteel slag former, preparation method thereof and semisteel making method
CN103555936A (en) * 2013-11-19 2014-02-05 攀枝花钢城集团有限公司 Cold-pressing block for steelmaking as well as preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1333381A (en) * 2000-07-06 2002-01-30 伍发贵 Composite slag melting agent for steelmaking
CN101928806A (en) * 2009-06-26 2010-12-29 攀钢集团攀枝花钢铁研究院有限公司 Composite slagging agent for semi-steel making and preparation method thereof and semi-steel making method
CN102912068A (en) * 2012-10-19 2013-02-06 攀钢集团攀枝花钢钒有限公司 Slagging constituent for semisteel converter steelmaking and manufacturing method thereof
CN103484596A (en) * 2013-09-30 2014-01-01 攀钢集团攀枝花钢铁研究院有限公司 Semisteel slag former, preparation method thereof and semisteel making method
CN103555936A (en) * 2013-11-19 2014-02-05 攀枝花钢城集团有限公司 Cold-pressing block for steelmaking as well as preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109338039A (en) * 2018-12-05 2019-02-15 钢城集团凉山瑞海实业有限公司 A kind of steelmaking converter slag former and preparation method thereof
CN109321705A (en) * 2018-12-10 2019-02-12 攀枝花钢城集团有限公司 Environment-friendly type pneumatic steelmaking slagging agent and preparation method thereof
CN110592374A (en) * 2019-10-21 2019-12-20 攀钢集团攀枝花钢铁研究院有限公司 Converter slag melting agent pellet and binder for forming same
CN110592374B (en) * 2019-10-21 2021-05-28 攀钢集团攀枝花钢铁研究院有限公司 Converter slag melting agent pellet and binder for forming same
CN110863077A (en) * 2019-12-18 2020-03-06 攀枝花钢城集团有限公司 Converter steelmaking slag former and preparation method thereof
CN110951934A (en) * 2019-12-20 2020-04-03 攀枝花钢城集团有限公司 Comprehensive utilization method of converter fly ash

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Application publication date: 20180511