CN108239684A - A kind of converter slag New Process for Treatment - Google Patents
A kind of converter slag New Process for Treatment Download PDFInfo
- Publication number
- CN108239684A CN108239684A CN201711290945.1A CN201711290945A CN108239684A CN 108239684 A CN108239684 A CN 108239684A CN 201711290945 A CN201711290945 A CN 201711290945A CN 108239684 A CN108239684 A CN 108239684A
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- slag
- steel
- magnetic separation
- grade
- broken
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/04—General arrangement of separating plant, e.g. flow sheets specially adapted for furnace residues, smeltings, or foundry slags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
Abstract
The present invention relates to a kind of converter slag New Process for Treatment.Its processing step is：1）, steel slag hot splashing：Heat is melted slag to be directly placed into hot application slag bath, cooling of fetching water, slag is reacted with water；Slag self solves dusting, slag sluicing system；2）, dusting slag after hot application by excavator grasping operation to slag transport dump truck, be pulled to slag screening, broken, magnetic separation production line；3）, slag through sieve pore under hopper be 200mm diagrid on be sieved, slag more than 200mm is attached to by loading machine on dumper, is transported between drop crushing and is crushed, and equipped with magnechuck and is dropped hammer between drop crushing, broken slag steel returns to steel-making and uses, and slag returns to diagrid；4）, less than 200mm grades slag after a series of broken, screenings, slag steel directly returns to steel-making, 10~50mm slags enter rod mill and are crushed and removed, magnetic separation twice is carried out by electromagnetic self-dumping iron remover, barrel magnetic separator, the magnetic separation of grade ＜ 10mm and the tailings of grade ＜ 10mm respectively enter magnetic separation library and tailings library.The present invention is finally reached the grade of slag steel TFe more than 85%, and metal Ferrum content is less than 2% in tailings.
Description
Technical field
The present invention relates to a kind of novel effective converter slag New Process for Treatment.
Background technology
Steel slag is the inevitable outcome of steel production, is ranked first in the world by the output of steel in development China for many years, and steel
The yield of scum is consequently increased, and the comprehensive utilization ratio of national slag in 2006 is only 10%.Big steel slag is banked up, and occupies soil
Ground, pollution environment, waste of resource, sustainable development of iron and steel industry face a severe challenge.
Simple process for treating steel slag lytic effect is poor at present, and cleavage rate 30%, granularity is uneven, and slag granularity is less than
The amount of 10mm accounts for more than 20%, and pollution environment, waste of resource, the iron-bearing material rate of recovery are 10%（Containing heavy scrap）.
Steel slag hot splashing processing and processing project meet national recycling economy, the policy of sustainable development, meet national industry
Policy is the important channel that slag high value utilizes, and has significant economic benefit, environmental benefit and social benefit, enjoys state
Family's preferential policy, is State Environmental Protection Administration, the project that Department of Science and Technology's emphasis is supported.
Invention content
The purpose of the present invention, which is that, provides a kind of converter slag New Process for Treatment, by present invention process, eliminates slag
Destabilizing factor, slag and metallic iron is made largely to detach, improves metal recovery rate, the grade for being finally reached slag steel TFe exists
More than 85%, metal Ferrum content is less than 2% in tailings, so as to fulfill developing a circular economy, reduces material consumption energy consumption, environmental protection
Target.
The technical scheme is that：
A kind of converter slag New Process for Treatment of the present invention, processing step are：
1）, steel slag hot splashing：Heat is melted slag to be directly placed into hot application slag bath, cooling of fetching water, slag is reacted with water：
f-CaO + H2O → Ca(OH)2Volume expansion 97.8%
f-MgO + H2O → Mg(OH)2Volume expansion 148%
Slag self solves dusting, slag sluicing system；Slag after dusting eliminates the destabilizing factor caused by above-mentioned reaction.
2）, dusting slag after hot application by excavator grasping operation to slag transport dump truck, be pulled to slag screening, it is broken,
Magnetic separation production line.
3）, slag through sieve pore under hopper be 200mm diagrid on be sieved, the slag more than 200mm is attached to by loading machine
It on dumper, transports between drop crushing and is crushed, equipped with magnechuck and drop hammer between drop crushing, broken slag steel returns
Steel-making uses, and slag returns to diagrid.
4th, less than the slag of 200mm grades after a series of broken, screenings, slag steel directly returns to steel-making, 10~50mm steel
Slag enters rod mill and is crushed and removed, and magnetic separation twice, grade ＜ are carried out by electromagnetic self-dumping iron remover, barrel magnetic separator
The magnetic separation of 10mm and the tailings of grade ＜ 10mm respectively enter magnetic separation library and tailings library.
Present invention process has the beneficial effect that：
1st, steel slag hot splashing：For steelmaking process using splashing slag in converter new technology, slag viscosity is big, poor fluidity.Metallurgy is raw
Production is smelted using rich ore, and P, S cause smelting harmful effect in slag, and the quantity that slag returns to sintering is fewer and fewer.Only disappear
Except f-CaO, f-MgO destabilizing factor in slag, 100% that tailings just can be achieved utilizes.Using steel slag hot splashing method treatment process,
Steel slag cracking effect is preferable after hot application, and amount of the slag granularity less than 10mm accounts for about more than 30~40%, and the iron-bearing material rate of recovery is about
It is 12%（Containing heavy scrap）.Slag steel good separating effect, the slag steel grade of big grade is high, and metal recovery rate is high, tail metal in the dreg
Content is less than 2%, reduces the waste of metals resources.
2nd, market prospects：Construction material occupies an important position in the development of the national economy, but its production will consume largely
Natural resources and discharge a large amount of CO to air2.To preserve the ecological environment, the requirement of industrial sustainable development is considered, fully profit
It is an important technical policy of country with industrial residue production New Building Materials.Levigate its fineness of steel ground-slag is in 400m2/
More than kg, grain size are mostly 0~30 μm.Hydraulic gelling property, the steel of incorporation 20%~30% can be played very well in cement
Ground-slag does not reduce strength of cement not only, moreover it is possible to improve cement performance, and can improve cement output, reduce cement energy consumption and cost.
Therefore steel ground-slag has a vast market.
Converter slag of the present invention uses hot application treatment process, further according to the difference of size fractionated slag iron content property, setting
The different magnetic plant of variety classes, magnetic field intensity all recycles the metallic iron in slag.Generate 10~0mm tailings into
One step fine grinding is processed, and produces slag micro powder available for cement and Concrete Industry.It is final to realize that the 100% of slag utilizes, it solves
A series of problems, such as its pollution environment, waste of resource.
Specific embodiment
The method of the present invention is illustrated below by way of certain company's slag comprehensive process production line example：
1st, plant area's overview and raw material sources：This project is located at steel mill's on-site, hot application workshop and follow-up broken, screening, magnetic separation
Production line is separately built.Steel slag hot splashing is built in steel mill slag across building together and set hot application slag bath 11, built respectively in 150t slags
Across 4,120t slags across 3,110t slags across 4, slag crushing, screening, magnetic separation building of production line are in original 30t after hot application
In converter workshop；Vessel slag comes from across the hot application slag bath of steel mill slag, annual to produce 1,200,000 t converter slags.
2nd, this engineering is using steel slag hot splashing+broken, magnetic separation, rod milling method treatment process.
3rd, this project hot splashing slag pond is separately built in steelmaking converter slag across building together and set 11 hot application slag baths, wherein 150t
Stove area builds 4, and 120 t stoves areas build 3, and 110t stoves area builds 4.Each converter slag is transported to slag across processing by straddle carrier
Line slings slag ladle by bridge crane and hot melt slag is tumbled to hot application slag bath, and single hot application slag bath receives slag, single slag bath
Receive the slag time about 18 hours, fill rear water-spraying control, about 15 hours hot application time, after the completion of hot application, loosened with excavator
And slag tap, it slags tap 3 hours time.Three hot application slag baths alternately, ensure the needs of STEELMAKING PRODUCTION.
After the completion of steel slag hot splashing, with excavator by dusting slag grasping operation to slag transport dump truck, it is pulled to screening, broken
Broken, magnetic separation production line.
Slag screening, broken, magnetic separation production line are set in 30t converter workshops.Pile of steel slag is set, by zl50 loader
Grasping operation is to feed hopper, and through sieve pore under hopper to be sieved on the diagrid of 200mm, the slag more than 200mm is filled slag by loading machine
Onto dumper, transport between drop crushing（Using Yuan30tLu areas mixed iron blast across）It is crushed, is inhaled between drop crushing equipped with electromagnetism
It disk and drops hammer, broken slag steel returns to steel-making and uses, and slag returns to diagrid.
Less than the slag of 200mm grades, 1# rubber conveyers are sent into through oscillating feeder（B=1200mm）.In 1# sealing-tape machines
Head is equipped with updraft type magnet drum and carries out magnetic separation, and ＜ 200mm slag steel is selected.Slag enters double outlet feed bins, through e=50mm
Vibrating feed sieved, the material more than 50mm is crushed into 2 hydraulic jaw crushers, the Vibration Screen of ＜ 50mm
It is lower to be mixed with broken rear slag, through 2# rubber conveyers（B=1200mm）It transports to e=10mm vibrating screens（2）It is sieved.
Magnetomechanical is provided on 2# sealing-tape machines, the 10~50mm slags steel magneticly elected directly returns to steel-making.Vibrating screen oversize（10~50mm
Slag）Pass through 3# sealing-tape machines（B=1200mm）The electromagnetic self-dumping iron remover of upper installation carries out magnetic separation, the 10~50mm slags magneticly elected
Steel directly returns to steel-making.10~50mm slags are through 5# rubber conveyers（B=1200mm）Slag slot is transported into, passes through 6-1,6-2# glue
Band conveyer（B=1000mm）1#, 2# rod mill is respectively enterd to be crushed and removed.Slag passes through 7-1,7-2# glue after rod milling
Band conveyer（B=1000mm）It transports to e=10mm vibrating screens（2）It sieves, passes through on sieve for ＞ 10mm slags positioned on glue of returning mine
Band conveyer（B=1000mm）On electromagnetic self-dumping iron remover carry out magnetic separation after, return 1# sealing-tape machines；＜ 10mm slags are by electricity
Magnetic self-removing iron remover, barrel magnetic separator carry out magnetic separation twice, and ＜ 10mm magnetic separations and ＜ 10mm tailings respectively enter magnetic separation library
With tailings library.
4th, process design and equipment selection
（1）Diagrid：This engineering uses diagrid of the partition size for 200mm.
1. quantity of its granularity less than 200mm accounts for more than the 80% of total quantity of slag after vessel slag hot application, the material more than 200mm
Predominantly steel scrap is mingled with part slag.
It is 2. long using the diagrid service life that steel plate, round steel make.
（2）Screening plant：Treated raw material that slag produces as steel-making slag powder, granularity requirements are less than 10mm, use
The efficient heavy type of 10mmZSGB1636 types is shaken sieve, has many advantages, such as that production capacity is high, wear-resistant.
（3）Crushing plant：Converter slag crushes the hydraulic jaw crusher for selecting PEY400 × 750mm, the broken equipment
There are following characteristics：
1. protection is reliable, it is automatic exclude can not fragment, efficiently solve the problems, such as " steel-fastening "；
2. the lower single hydraulic cylinder of hydraulic station support, can not only adjust discharge gate size, but can with off-load discharge can not fragment, no
Asynchrony phenomenon can be generated as double acting cylinder, cause dynamic jaw segregation phenomena and damage body；
3. included hydraulic station, PLC automatic control system.
（4）Magnetic plant：According to the measure to domestic hot application treated slag different grain size iron-holder it is found that granularity exists
During more than 35mm, magnetic material ferrous grade is higher after magnetic separator, and the content of metallic iron is few in tailings.Granularity is less than
Iron grade is relatively low in the slag of 10mm, and steel grit is wrapped up in slag.
This engineering design uses four kinds of various forms of magnetic plants, and foundation is：
Magnetic field intensity：Main magnetic system： 1500GS
Assist magnetic system：1800GS
It is applicable in place：After diagrid, before crusher；0~200mm of material size.
Basic function：Slag after diagrid, part bulk slag steel, which has dissociateed, to be come, and does not need to enter crusher, also easily
Crusher is damaged.This set magnetic plant mainly sorts the high-grade slag steel of certain particle size grade, can either obtain
To high-grade slag steel, and subsequent crushing plant can be protected.
Equipment feature：
◆ uniform magnetic field designs, and identical grade slag steel can be sub-elected, convenient for being subsequently applicable in.
◆ drum-type structure designing scheme, using 1Cr18Ni9Ti materials as drum skin, thickness 14mm, equipment is exempted from
It safeguards.
◆ coaxial configuration design, the design of bearing fitted outside, equipment is convenient for safeguarding, maintenance.
Band magnetomechanical
Magnetic field intensity：Main pole：0~1500GS
Secondary magnetic system： 1200GS
It is applicable in place：After crusher, vibration separation screen front conveyor, on-the-sieve material conveyer；0~50mm of material size.
Basic function：The slag steel dissociated after crushing is sorted, reduces the abrasion to vibrating screen；To the height contained in oversize
Grade slag steel sorts.
Equipment feature：
◆ unique uniform magnetic field design and structure design increase magnetic pole area, can improve the grade for sorting steel of slagging tap
◆ the armored belt of unique design can effectively prevent damage of the sharp Ferromagnetic Impurities to belt.
◆ equipment field homogeneity is adjustable, cull item position can be adjusted according to requiring.
◆ unique bipolar field structure can overturn material, improve slag steel grade.
3. dry-type magnetic extractor
It is applicable in place：Tailings travelling belt rear.
Basic function：The metallic iron contained in recycling tailings.
Equipment feature：
◆ using Japanese magnetic system technology.
◆ frequency control drum rotation speed realizes that effect is adjustable.
◆ tailing metal Ferrum content can be up to state standards within 2%.
4. lifting electromagnet
Suitable for the sorting to bulk slag steel, it is set between bulk crushing magnetic separation.
（5）Rod mill：In order to which MFe ＜ 2% in tailings, 0~10 mm slag steel grade TFe ＞ 40% is made to be carried out using rod mill
Broken stripping, in addition magnetic separation can make metal Ferrum content in tailings be less than 2%.Make concrete admixture, iron available for production steel-making slag powder
Fine powder TFe>40% can make return Sintering Blend.
5th, workshop reuses design
（1）Between bulk magnetic separation crushes：In order to make full use of old facility, this bulk magnetic separation reuses former 30t converters area between crushing
Domain mixed iron blast is handled between, the bulk that diagrid sub-elects in each magnetic separation line flow is crushed by Automobile Transportation to bulk magnetic separation, by factory
Room is transformed, and removes two across rear（Planning road influences）, workshop roof truss and building enclosure are transformed, color steel binds.It is right
The 32t overhead traveling cranes for having workshop are transformed, and increase magnechuck, and bulk crushing is carried out for absorbing heavy scrap and hanging suction to drop hammer.
（2）It is built in 30t converter main buildings between slag crushing, screening, internal existing facility needs to remove.Workshop uses nearly 20
Year, factory building columns, roof truss etc. need to be identified, need to be reinforced when necessary.Vibrating equipment foundation is newly set in workshop should be with old base
Plinth is stayed to be stitched not less than 100mm；Tailings library is located at former excessively across since preloading increases larger, need to carrying out review checking computations to old basis
And it is reinforced；It needs to be transformed former 30t converters 600t mixed iron blast workshops between bulk slag processing, removes existing facility, tear open
Except 2 Pin framed bents of genuine room, roof truss, wind-resistant column etc., Dongshan wall sets steel column and goes along with sb. to guard him again, increases support and wall purlin again.
6th, each Specialty Design optimization, is realized comprehensively energy saving
（1）For site Planning according to pre-existing topography reasonable Arrangement, technological process is smooth, compact, greatly shortens material fed distance.
Slag sieving approach, magnetic separation, purification, product storage concentrate on workshop north three across.Clear and definite function division is respectively processed, rationally
Arrangement, material direct motion.Steel scoria magnetic separation processing line focuses on, and reuse workshop and overhead traveling crane；Material transportation makes full use of existing road.
（2）Magnetic separation, vibrosieve and the processes entirety centralized arrangement such as broken are reduced workshop transport by steel scoria magnetic separation technique
Distance saves energy consumption.Pulverizing-screening system closed cycle equipped with crushing plant, feeding device and feeder channel in design, is conducive to
Crushing system quick shutdown.Entire processing line lifting equipment reuses existing equipment, operation, safeguard, overhaul efficiency it is high, save energy
Consumption.
The technically reliable that country promotes, efficient, energy-efficient equipment are selected in equipment design.According to the spy for containing residual steel in slag
Different property, to ensure that crushing plant because being shut down during steel-fastening or equipment damage, does not select band to cross the hydraulic jaw crusher that iron is protected.By
It is little in rod mill load, the specification quantity of feed size and rod iron is rationally designed, the power of grinding machine motor is reduced, produces t
Product power consumption reduces, and reaches energy-saving effect.According to slag granularity and the difference of steel content, production line permanent magnetic pulley and electromagnetism remove iron
Device, and different types of magnetic separator of different magnetic field intensity is respectively adopted, improve magnetic separation effect and saves energy consumption.It selects energy-saving
Transformer and electrical equipment according to conditions such as calculated load, load characters, determine the installed capacity and number of units of transformer, and adjust
Whole load, makes transformer economic operation.Using low-voltage electric energy-saving product, such as contactor power saving product.
（3）This engineering is mainly component cooling water with water, installs automatic gauge and control device with water, can reduce a ton product
New water and comprehensive total water consumption, improve the recycling rate of waterused of water up to more than 90%, in addition to being taken away by slag and being evaporated water, remaining can be complete
Portion recycles.
（4）This engineering automatic control level is higher, all whole design flow instrument in place for relating to the energy of full production line.
Magnetic separation production line sets PLC control program, and each measuring instrument numerical value point unit consumption and total consumption show and record in PLC.
The implementation case is only one of ripe case.The technological process is advanced, ripe, reliable, and is applied multiple times in steel
In slag disposal system.
Present invention employs advanced technology, reached iron and steel enterprise " develop a circular economy, reduce material consumption energy consumption,
The requirement of attention environmental protection, raising Enterprise Integrated competitiveness ".The system is since putting into operation, stable and reliable operation, operation letter
Just, relatively good desired effect has been reached.
Claims (1)
1. a kind of converter slag New Process for Treatment, it is characterised in that：The processing step is：
1）, steel slag hot splashing：Heat is melted slag to be directly placed into hot application slag bath, cooling of fetching water, slag is reacted with water：
f-CaO + H2O → Ca(OH)2Volume expansion 97.8%
f-MgO + H2O → Mg(OH)2Volume expansion 148%
Slag self solves dusting, slag sluicing system；Slag after dusting eliminates the destabilizing factor caused by above-mentioned reaction；
2）, dusting slag after hot application by excavator grasping operation to slag transport dump truck, be pulled to slag screening, broken, magnetic separation
Production line；
3）, slag through sieve pore under hopper be 200mm diagrid on be sieved, the slag more than 200mm by loading machine be attached to from
It on unloading, transports between drop crushing and is crushed, equipped with magnechuck and drop hammer between drop crushing, broken slag steel returns to refining
Steel uses, and unbroken slag, which returns to diagrid, to be continued to be sieved；
4）, less than 200mm grades slag after a series of broken, screenings, directly return and make steel, 10~50mm of grade slags into
Enter rod mill to be crushed and removed, magnetic separation twice is carried out by electromagnetic self-dumping iron remover, barrel magnetic separator, grade ＜ 10mm's
The tailings of magnetic separation and grade ＜ 10mm respectively enter magnetic separation library and tailings library.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108940539A (en) * | 2018-08-24 | 2018-12-07 | 苏州石川制铁有限公司 | A kind of clinker recycles processing system and its processing method |
| CN109680157A (en) * | 2018-12-10 | 2019-04-26 | 敬业钢铁有限公司 | A kind of steel slag recycling technique |
| CN110484663A (en) * | 2019-08-29 | 2019-11-22 | 建龙阿城钢铁有限公司 | A kind of converter slag treatment process |
| CN110698087A (en) * | 2019-11-05 | 2020-01-17 | 中国科学院过程工程研究所 | Device and method for comprehensively utilizing thermal-state steel slag |
| CN111321262A (en) * | 2020-03-25 | 2020-06-23 | 辽宁科技学院 | Converter steel slag treatment and separation method |
| CN111495930A (en) * | 2020-04-23 | 2020-08-07 | 芜湖新兴铸管有限责任公司 | Method for treating converter steel slag |
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| CN113996626A (en) * | 2021-09-16 | 2022-02-01 | 江苏沙钢集团有限公司 | Steel slag processing technology |
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| CN114751661A (en) * | 2022-01-14 | 2022-07-15 | 新疆交通建设集团股份有限公司 | Hot splashing slag treatment method and application |
| CN115121586A (en) * | 2022-07-04 | 2022-09-30 | 中冶节能环保有限责任公司 | Electric furnace slag treatment method and device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928793A (en) * | 2010-07-22 | 2010-12-29 | 新兴铸管股份有限公司 | Steel slag treatment method |
| CN102534068A (en) * | 2012-01-30 | 2012-07-04 | 山西太钢不锈钢股份有限公司 | Method for reusing common steel slag |
| CN102839240A (en) * | 2011-06-21 | 2012-12-26 | 南京梅山冶金发展有限公司 | Comprehensive processing utilization production technology of steel slag |
| CN102978305A (en) * | 2012-12-15 | 2013-03-20 | 武钢集团昆明钢铁股份有限公司 | Molten steel casting residue treatment and recycling method |
| CN103060493A (en) * | 2012-06-29 | 2013-04-24 | 南京梅山冶金发展有限公司 | Steel slag water washing ball milling manufacture processing craft |
| CN105624345A (en) * | 2015-12-30 | 2016-06-01 | 宝钢集团新疆八一钢铁有限公司 | Method for achieving efficient hot disintegration of liquid steel slag |
-
2017
- 2017-12-08 CN CN201711290945.1A patent/CN108239684A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928793A (en) * | 2010-07-22 | 2010-12-29 | 新兴铸管股份有限公司 | Steel slag treatment method |
| CN102839240A (en) * | 2011-06-21 | 2012-12-26 | 南京梅山冶金发展有限公司 | Comprehensive processing utilization production technology of steel slag |
| CN102534068A (en) * | 2012-01-30 | 2012-07-04 | 山西太钢不锈钢股份有限公司 | Method for reusing common steel slag |
| CN103060493A (en) * | 2012-06-29 | 2013-04-24 | 南京梅山冶金发展有限公司 | Steel slag water washing ball milling manufacture processing craft |
| CN102978305A (en) * | 2012-12-15 | 2013-03-20 | 武钢集团昆明钢铁股份有限公司 | Molten steel casting residue treatment and recycling method |
| CN105624345A (en) * | 2015-12-30 | 2016-06-01 | 宝钢集团新疆八一钢铁有限公司 | Method for achieving efficient hot disintegration of liquid steel slag |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108940539A (en) * | 2018-08-24 | 2018-12-07 | 苏州石川制铁有限公司 | A kind of clinker recycles processing system and its processing method |
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| CN111321262A (en) * | 2020-03-25 | 2020-06-23 | 辽宁科技学院 | Converter steel slag treatment and separation method |
| CN111495930A (en) * | 2020-04-23 | 2020-08-07 | 芜湖新兴铸管有限责任公司 | Method for treating converter steel slag |
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