CN106834570A - A kind of method of stainless steel slag comprehensive utilization of resources - Google Patents
A kind of method of stainless steel slag comprehensive utilization of resources Download PDFInfo
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- CN106834570A CN106834570A CN201611084540.8A CN201611084540A CN106834570A CN 106834570 A CN106834570 A CN 106834570A CN 201611084540 A CN201611084540 A CN 201611084540A CN 106834570 A CN106834570 A CN 106834570A
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- Prior art keywords
- slag
- transported
- stainless steel
- shaking table
- diameter
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- 239000002893 slag Substances 0.000 title claims abstract description 167
- 238000000034 method Methods 0.000 title claims abstract description 39
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 19
- 239000010935 stainless steel Substances 0.000 title claims abstract description 19
- 238000005266 casting Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000000498 ball milling Methods 0.000 claims abstract description 7
- 238000010791 quenching Methods 0.000 claims abstract description 6
- 239000000498 cooling water Substances 0.000 claims abstract description 4
- 239000000706 filtrate Substances 0.000 claims abstract description 4
- 238000010298 pulverizing process Methods 0.000 claims abstract description 4
- 230000000171 quenching effect Effects 0.000 claims abstract description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- WURBVZBTWMNKQT-UHFFFAOYSA-N 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)butan-2-one Chemical compound C1=NC=NN1C(C(=O)C(C)(C)C)OC1=CC=C(Cl)C=C1 WURBVZBTWMNKQT-UHFFFAOYSA-N 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000002910 solid waste Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000006253 efflorescence Methods 0.000 description 2
- 206010037844 rash Diseases 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000863 Ferronickel Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention provides a kind of method of stainless steel slag comprehensive utilization of resources, its environmental protection, economizes on resources.（1）The slag of hot stainless steel electric furnace and AOD furnace is transported to Slag treatment workshop, slag is poured into roller slag disposal device, lead to cooling water in roller carries out water quenching to slag, simultaneously steel ball slag squeeze it is broken, cooling after isolated useful metal and slag, useful metal enters feed bin, and slag is transported to ball mill；（2）The remaining slag of casting is transported to Slag treatment workshop, is poured into after air cooling or water-cooled in bubble slag bath, and after bulk slag is sorted, slag is transported to ball mill；（3）Electric furnace slag after single treatment, AOD furnace slag, the remaining slag of casting are carried out output ball milling material and slag particle after pulverization process by ball mill；Slag particle and water drain into shaking table；The shaking table material that shaking table is isolated is delivered to and stores up area, and shaking table tailings and water drain into pond of confluxing, and then pressurize discharge to belt filter press, and the tailings after belt filter press treatment is stored up in workshop, and filtrate then drains into backflow pool.
Description
Technical field
The present invention relates to a kind of method of stainless steel slag comprehensive utilization of resources.
Background technology
With the fast development of national economy, how rationally the energy and relative inadequacy of resources have turned into economic development bottleneck,
The key point of China's sustainable economic development is to ensure that using existing precious resources.Strengthening the comprehensive utilization of metallurgical solid waste is
Steel industry strengthens Ecological Civilization Construction and promotes an urgent demand of industry industrial upgrading, slag, water treatment sludge, iron oxide
Skin, dedusting ash etc. are the topmost solid waste of steel industry, and solid waste is stacked and not only influences environmental quality, and is resource
Huge waste.How the activity and stability of metal, guarantee select after tailings is effectively reclaimed from slag, it is ensured that realize high adding
Value is utilized, and walks sustainable development path, and the economic benefit of enterprise is increased while pollution is reduced, and is always that iron and steel enterprise faces
Important topic.
The Chinese patent of Application No. 201510279089.4 discloses a kind of stainless steel slag recovery and reusing and recycling method
And its device, it is comprised the following steps：Type according to stainless steel slag carries out water-spraying control treatment to it, makes stainless steel slag
Fully clear up efflorescence and crush；Stainless steel slag after the stewing efflorescence treatment of heat is transported to slag processing exhausting line, by slag plus
Work exhausting line is sorted to it, sieved, being crushed, magnetic separation, rod milling and gravity separation, by nickeliferous in stainless steel slag, chromium,
The slag steel of iron is selected；Building material product will be processed into by the tailings of assortment or briquetting is dried for outward transport.The technical scheme
Operation is complex, and need to set special processing unit, and early investment is big, high energy consumption during later stage use, with TV university, and
China is main based on thermoelectricity, and certain pollution is caused indirectly.
The content of the invention
It is an object of the invention to overcome above shortcomings in the prior art, and provide it is a kind of it is reasonable in design, environmentally friendly,
The method of the stainless steel slag comprehensive utilization of resources for economizing on resources.
The present invention the used technical scheme that solves the above problems is：A kind of side of stainless steel slag comprehensive utilization of resources
Method, it is characterised in that：Including electric furnace slag and AOD furnace slag single treatment technique, the remaining slag single treatment technique of casting, and slag
After-treatment technique；
（1）, electric furnace slag and the step of AOD furnace slag single treatment technique be：
Slag treatment workshop is transported to by rail travelling crane after the slag of hot stainless steel electric furnace and AOD furnace is poured into slag ladle, then will
Slag ladle is put on slag ladle tiling arrangement, is poured into roller slag disposal device slag by slag ladle tiling arrangement, roller Slag treatment dress
Lead to cooling water in the roller put carries out water quenching to slag, while the steel ball rotated in roller is separated after slag is squeezed broken, cooling
To useful metal and the slag of diameter certain specification, useful metal enters feed bin, and the slag of the diameter certain specification is by combining
Formula conveyer is transported to ball mill；
（2）, casting remaining slag single treatment technique the step of be：
The remaining slag of casting is transported to Slag treatment workshop by rail travelling crane, is poured into after air cooling or water-cooled in bubble slag bath, and bulk slag is carried out
After sorting, the slag of diameter certain specification is transported to ball mill by combined type conveyer；
（3）, slag after-treatment technique the step of be：Ball mill is remaining by the electric furnace slag after single treatment, AOD furnace slag, casting
Slag carries out the slag particle of output ball milling material and diameter certain specification after pulverization process；The slag particle of the diameter certain specification and crushing
The water for producing afterwards drains into shaking table and is separated；The shaking table material that shaking table is isolated is delivered to by belt feeder and stores up area, shaking table tailings and
The water produced after separation drains into pond of confluxing, and then pressurize discharge to belt filter press, and the tailings after belt filter press treatment is stored up
In workshop, filtrate then drains into backflow pool.
In electric furnace slag of the present invention and AOD furnace slag single treatment technique, the slag of diameter certain specification is less than for diameter
The slag of 70mm.
In the remaining slag single treatment technique of present invention casting, the slag of diameter certain specification is less than the slag of 100mm for diameter.
In slag after-treatment technique of the present invention, the slag particle of diameter certain specification is the slag particle of below diameter 2mm.
The present invention compared with prior art, with advantages below and effect：It is of the invention that fully screening can reuse metal and ball
Smelting is melted down for steel-making in group, and tailings is used for the raw material of building materials such as cement, and slag obtains comprehensive comprehensive utilization of resources.The application
People processes 310,000 tons of production capacity of solid waste year by implementation of the invention, formation（Wherein at 220,000 tons of slag and water
Reason sludge, iron scale, totally 9 ten thousand tons of dedusting ash）, produce 1.674 ten thousand tons of ferronickel metal, 8.1 ten thousand tons of pelletizing, tailings 20.326 ten thousand per year
Ton.
Specific embodiment
Below by embodiment, the present invention is described in further detail, following examples be explanation of the invention and
The invention is not limited in following examples.
The present embodiment includes electric furnace slag and AOD furnace slag single treatment technique, the remaining slag single treatment technique of casting, and steel
Slag after-treatment technique.
（1）, electric furnace slag and the step of AOD furnace slag single treatment technique be：
Slag treatment workshop is transported to by rail travelling crane after the slag of hot stainless steel electric furnace and AOD furnace is poured into slag ladle, then will
Slag ladle is put on slag ladle tiling arrangement, is poured into roller slag disposal device slag by slag ladle tiling arrangement, roller Slag treatment dress
Lead to cooling water in the roller put carries out water quenching to slag, while the steel ball rotated in roller is separated after slag is squeezed broken, cooling
Slag to useful metal and diameter less than 70mm, useful metal enters feed bin, and slag of the diameter less than 70mm is defeated by combined type
Machine is sent to be transported to ball mill.
（2）, casting remaining slag single treatment technique the step of be：
The remaining slag of casting is transported to Slag treatment workshop by rail travelling crane, is poured into after air cooling or water-cooled in bubble slag bath, and bulk slag is carried out
After sorting, slag of the diameter less than 100mm turns to be transported to ball mill by combined type conveyer.
（3）, slag after-treatment technique the step of be：Ball mill by the electric furnace slag after single treatment, AOD furnace slag,
The remaining slag of casting carries out the slag particle of output ball milling material and below diameter 2mm after pulverization process, ball abrasive reclaiming；Below diameter 2mm
The water produced after slag particle and crushing drains into shaking table and is separated naturally；The shaking table material that shaking table is isolated is delivered to by belt feeder and stored up
Area reclaims, and the water produced after shaking table tailings and separation drains into pond of confluxing, and discharge to belt filter press treatment recovery of then pressurizeing has
With material, the tailings after treatment is stored up in workshop, and filtrate then drains into backflow pool.
Case study on implementation 1
Case study on implementation is described below.
Electric furnace slag treatment：14.1 tons of electric furnace slags are hung to Slag treatment workshop, pour into and enter water-filling in roller slag disposal device
Quench, subsequently into ball mill, shaking table, output ball milling material 275kg（Tenor 95%）, shaking table material 687kg（Tenor 60%）.
Case study on implementation 2
Case study on implementation is described below.
AOD furnace slag processing：9.6 tons of electric furnace slags are hung to Slag treatment workshop, pour into and enter water-filling in roller slag disposal device
Quench, then powder enters ball mill, shaking table, output ball milling material 61kg（Tenor 96%）, shaking table material 222kg（Tenor
55%）.
Case study on implementation 3
Case study on implementation is described below.
The remaining slag processing of casting：10.5 tons of remaining slag water-cooleds of casting are after 48 hours, pour into slag bath, mechanical go-no-go bulk slag, its
Remaining slag enters ball mill, shaking table, output slag 336kg, ball milling material 214kg（Tenor 95.5%）, shaking table material 531kg（Gold
Category content 55.8%）.
Above content described in this specification is only to structure example explanation of the present invention；And, this hair
The title that bright each several part is taken can also be different, what all constructions according to described in inventional idea of the present invention, feature and principle were done etc.
Effect or simple change, are included in the protection domain of patent of the present invention.
Claims (4)
1. a kind of method of stainless steel slag comprehensive utilization of resources, it is characterised in that：Including electric furnace slag and AOD furnace slag one
Secondary handling process, the remaining slag single treatment technique of casting, and slag after-treatment technique；
（1）, electric furnace slag and the step of AOD furnace slag single treatment technique be：
Slag treatment workshop is transported to by rail travelling crane after the slag of hot stainless steel electric furnace and AOD furnace is poured into slag ladle, then will
Slag ladle is put on slag ladle tiling arrangement, is poured into roller slag disposal device slag by slag ladle tiling arrangement, roller Slag treatment dress
Lead to cooling water in the roller put carries out water quenching to slag, while the steel ball rotated in roller is separated after slag is squeezed broken, cooling
To useful metal and the slag of diameter certain specification, useful metal enters feed bin, and the slag of the diameter certain specification is by combining
Formula conveyer is transported to ball mill；
（2）, casting remaining slag single treatment technique the step of be：
The remaining slag of casting is transported to Slag treatment workshop by rail travelling crane, is poured into after air cooling or water-cooled in bubble slag bath, and bulk slag is carried out
After sorting, the slag of diameter certain specification is transported to ball mill by combined type conveyer；
（3）, slag after-treatment technique the step of be：Ball mill is remaining by the electric furnace slag after single treatment, AOD furnace slag, casting
Slag carries out the slag particle of output ball milling material and diameter certain specification after pulverization process；The slag particle of the diameter certain specification and crushing
The water for producing afterwards drains into shaking table and is separated；The shaking table material that shaking table is isolated is delivered to by belt feeder and stores up area, shaking table tailings and
The water produced after separation drains into pond of confluxing, and then pressurize discharge to belt filter press, and the tailings after belt filter press treatment is stored up
In workshop, filtrate then drains into backflow pool.
2. the method for stainless steel slag comprehensive utilization of resources according to claim 1, it is characterised in that：Electric furnace slag and
In AOD furnace slag single treatment technique, the slag of diameter certain specification is less than the slag of 70mm for diameter.
3. the method for stainless steel slag comprehensive utilization of resources according to claim 1, it is characterised in that：The remaining slag one of casting
In secondary handling process, the slag of diameter certain specification is less than the slag of 100mm for diameter.
4. the method for stainless steel slag comprehensive utilization of resources according to claim 1, it is characterised in that：The secondary place of slag
In science and engineering skill, the slag particle of diameter certain specification is the slag particle of below diameter 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611084540.8A CN106834570A (en) | 2016-11-30 | 2016-11-30 | A kind of method of stainless steel slag comprehensive utilization of resources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611084540.8A CN106834570A (en) | 2016-11-30 | 2016-11-30 | A kind of method of stainless steel slag comprehensive utilization of resources |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106834570A true CN106834570A (en) | 2017-06-13 |
Family
ID=59145516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611084540.8A Pending CN106834570A (en) | 2016-11-30 | 2016-11-30 | A kind of method of stainless steel slag comprehensive utilization of resources |
Country Status (1)
| Country | Link |
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| CN (1) | CN106834570A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112007752A (en) * | 2020-08-17 | 2020-12-01 | 广西冶固科技发展有限公司 | Stainless steel refining furnace tailing gradient recycling sorting method and system |
| CN112280913A (en) * | 2020-10-15 | 2021-01-29 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | AOD slag treatment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2018494C1 (en) * | 1992-04-20 | 1994-08-30 | Яков Шмулевич Школьник | Method and device for processing of 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 |
| CN104862490A (en) * | 2015-05-28 | 2015-08-26 | 中冶南方工程技术有限公司 | Method and device for recycling stainless steel slags |
-
2016
- 2016-11-30 CN CN201611084540.8A patent/CN106834570A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2018494C1 (en) * | 1992-04-20 | 1994-08-30 | Яков Шмулевич Школьник | Method and device for processing of 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 |
| CN104862490A (en) * | 2015-05-28 | 2015-08-26 | 中冶南方工程技术有限公司 | Method and device for recycling stainless steel slags |
Non-Patent Citations (2)
| Title |
|---|
| 曹志栋 等: "宝钢滚筒法液态钢渣处理装置及生产实绩", 《宝钢技术》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112007752A (en) * | 2020-08-17 | 2020-12-01 | 广西冶固科技发展有限公司 | Stainless steel refining furnace tailing gradient recycling sorting method and system |
| CN112007752B (en) * | 2020-08-17 | 2023-11-28 | 广西冶固科技发展有限公司 | Method and system for echelon recycling separation of stainless steel refining furnace tailings |
| CN112280913A (en) * | 2020-10-15 | 2021-01-29 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | AOD slag treatment method |
| CN112280913B (en) * | 2020-10-15 | 2022-02-08 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | AOD slag treatment method |
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Application publication date: 20170613 |
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