CN107176804A - Metallurgy steel slag tank grid and its production method - Google Patents
Metallurgy steel slag tank grid and its production method Download PDFInfo
- Publication number
- CN107176804A CN107176804A CN201710371943.9A CN201710371943A CN107176804A CN 107176804 A CN107176804 A CN 107176804A CN 201710371943 A CN201710371943 A CN 201710371943A CN 107176804 A CN107176804 A CN 107176804A
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- slag
- steel
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- mud
- grid
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/006—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mineral polymers, e.g. geopolymers of the Davidovits type
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
- C04B18/142—Steelmaking slags, converter slags
-
- 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
- C21B3/10—Slag pots; Slag cars
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
-
- 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
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Metallurgy (AREA)
- Civil Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a kind of metallurgy steel slag tank grid and its production method, its raw material is made up of by weight percentage following components：15~25 parts of slag as aggregate；16~25 parts of steel-making slag powder；4~10 parts of slag washing dirt mud；45~65 parts of the polywater mud in slag ground.The grid of the invention for all having used slag to produce steel slag tank as raw material so that converter slag waste material is recycled, and makes converter slag waste material get utilization, and effectively reduces the production cost of grid.Also, the present invention all produces grid using slag as raw material and effectively prevent environmental pollution caused by the unordered outer row of converter slag mud, destroys ecology, is conducive to Ecological Civilization Construction.The present invention uses Full-steel slag as raw material and produces steel slag tank grid, moderate strength, and production cost is low, be easy to large-scale production, is adapted to carry out industrial application in each smelter, with very strong practicality.
Description
Technical field
The present invention relates to field of metallurgical slag treatment, in particular to a kind of metallurgical with steel slag tank grid and its production method.
Background technology
Iron and steel enterprise is in steelmaking process, it will usually which some molten steel is together introduced into specific slag ladle with slag, in slag
Bulk slag steel disc is formed after layering cooling in tank, radial dimension even can reach 3~4m, and weight is up to 4~5t.To return
Steel-making is used, it is necessary to which it is cut.Common processing mode, which is hammered into shape well, pounds or gas cutting.It is low that treatment effeciency is pounded using hammer,
It is dangerous big, very big noise and vibration can be produced, surrounding environment is influenceed；Using gas cutting process, energy resource consumption is big, and environment is dirty
Dye is very serious, while part high-quality slag steel resource can be become to slag loss.
At present, in order to preferably handle slag and reclaim slag steel resource therein, it can use and load grid pair in slag ladle
Liquid steel slag is handled, and slag steel therein is separated into some pieces, is easy to use.From the point of view of effective utilization, grid use is
Disposably, slag ladle fills after slag is toppled over to slag field and needs to scatter.Therefore, the cost of manufacture of grid needs to control reduced levels,
Grid intensity is moderate, it is impossible to too high, can not be too low.
Slag makes steel byproduct as one kind, with certain performance of gathering materials during its graininess, has one during powder grinds
Fixed gelling.Therefore, from saving in terms of grid cost of manufacture and using effect, provided using Full-steel slags such as slag as aggregate, steel-making slag powders
Source, which makes grid, has technical feasibility and environmental protection urgent.
The content of the invention
Steel slag tank grid is used it is an object of the invention to provide a kind of metallurgy, its not only moderate strength, and cost is low.
To achieve the above object, the present invention provides a kind of metallurgy and uses steel slag tank grid, its raw material be by following components by
Percentage by weight is constituted：
15~25 parts of slag as aggregate；
16~25 parts of steel-making slag powder；
4~10 parts of slag washing dirt mud；
45~65 parts of the polywater mud in slag ground.
It is preferred that, the particle diameter of the slag as aggregate is 5~15mm.Wherein, described slag as aggregate refers to that hot steel slag is passed through
After overstabilization processing, crusher in crushing is carried out, is obtained after screening.
It is preferred that, the fineness of the steel-making slag powder is tailed over less than 20% for 0.045mm square hole screens, and activity index is more than 95%.
Described steel-making slag powder is obtained after slag is carried out into stabilization processes.
It is preferred that, metal Ferrum content≤1% of the slag washing dirt mud, activity index >=65%, basicity factor >=
1.8, specific surface area is 300~450m2/kg.Wherein, the converter slag washing dirt mud refers to that steel containing scum carries out ball milling washing
Gained powder granule after drying.
It is preferred that, the slag polywater mud be to carry out adding retarder and mineralizer after first time grinding by slag, so
Carry out what is obtained after grinding again afterwards.
Further, granularity is 100~150m after the slag first time grinding2Granularity after/kg, further grinding
For 310~560m2/kg。
Further, the retarder addition is the 0.1~0.5% of slag weight, and the mineralizer addition is
The 3.5~10.5% of slag weight.
It is preferred that, the retarder is at least one of ardealite, citric acid gypsum, desulfurated plaster, fluorgypsum.
It is preferred that, the mineralizer refers to by least one of kaolin, bentonite, sepiolite with inorganic base 850
Naturally the mineralising mixture formed after 25~95min is calcined at~1100 DEG C.Wherein, in kaolin, bentonite, sepiolite extremely
A kind of few weight ratio with inorganic base is (0.2~4.5): 1.The inorganic base is conventional inorganic base, and the present invention is preferably hydrogen
At least one of sodium oxide molybdena, potassium hydroxide, potassium carbonate, sodium acid carbonate, sodium carbonate, saleratus.
It is a further object to provide the above-mentioned metallurgical production method with steel slag tank grid, the letter of this method step
Single, cost is low, is suitable for industrialized production.
To achieve the above object, the present invention provides a kind of above-mentioned metallurgical preparation method with steel slag tank grid, its step bag
Include：
1) adding mass percent into raw material slag as aggregate, steel-making slag powder, slag with washing dirt mud and slag polywater mud is
10~15% water, is mixed into slurry；
2) obtained slurry is poured into multiple grid moulds；
3) some reinforcing bars are placed in the slurry of each grid mould, are stripped after natural curing；
4) after being stripped, welding assembly is carried out to described reinforcing bar.
The quantity and size of the bar dowel can be according to the Capacity designs of steel slag tank, and the present invention is in order to save cost and guarantor
Demonstrate,prove intensity, it is preferred to use a diameter of 6~10mm bar dowel.For the ease of the welding assembly of reinforcing bar, the reinforcing bar preferably stretches out
Slurry about 1cm in mould is used as welding portion.The curing time of slurry can be according to the routine techniques of those skilled in the art
It is determined that, the present invention is preferably maintenance 48~72 hours.
As well known to a person skilled in the art, can be before slurry imports mould, in mould for the ease of mold releasability
Has inwall smearing release agent.
The beneficial effects of the present invention are：
The grid of the invention for all having used slag to produce steel slag tank as raw material so that converter slag waste material is reclaimed
Utilize, converter slag waste material is got utilization, effectively reduce the production cost of grid.Also, it is of the invention all to make
Environmental pollution, destruction life caused by the unordered outer row of converter slag mud are effectively prevent as raw material production grid with slag
State, is conducive to Ecological Civilization Construction.Meanwhile, steel slag tank grid moderate strength of the invention can both isolate slag steel, again can be to prevent
Do not crushed during rotation stop movement space feed grid.The present invention use Full-steel slag as raw material production steel slag tank grid, moderate strength, and
And production cost is low, be easy to large-scale production, it is adapted to carry out industrial application in each smelter, with very strong practicality
Property.
Embodiment
The metallurgical of the present invention is made further with steel slag tank grid and its production method below by way of specific embodiment
It is bright：
The raw material of the present invention is produced as follows to be obtained：
1) by hot steel slag after stabilization processes, crusher in crushing, slag of the screening into 5~15mm particle diameters are carried out
Gather materials.
2) slag is carried out after stabilization processes, be less than by flour mill grinding into fineness (0.045mm square hole screens are tailed over)
20%, activity index (28d) is more than 95% powder granule, obtains steel-making slag powder.
3) scum steel will be contained and carry out gained powder granule, its metal Ferrum content≤1%, activity index after ball milling washing drying
>=65%, basicity factor >=1.8, specific surface area is 300~450m2/ kg, obtains slag washing dirt mud.
4) it is 100~150m by the pre- grinding of slag to granularity2/ kg, adds retarder and mineralizer, further powder to it
Granularity is milled to for 310~560m2/ kg, with obtaining slag polywater mud.The weight of described retarder is the slag weight
0.1~0.5%, the weight of the mineralizer is the 3.5~10.5% of the slag weight.Described retarder be ardealite,
One or more of combinations in citric acid gypsum, desulfurated plaster, fluorgypsum.Described mineralizer be by kaolin, bentonite,
One or more of mineralisings for calcining 25~95min formation naturally at 850~1100 DEG C with alkaline matter in sepiolite are mixed
Thing, wherein, the weight ratio of one or more combination thing and alkaline matter in kaolin, bentonite, sepiolite for (0.2~
4.5)∶1.The alkaline matter is one in sodium hydroxide, potassium hydroxide, potassium carbonate, sodium acid carbonate, sodium carbonate, saleratus
Plant or several.
The metallurgy steel slag tank grid 1-5 of the present invention is obtained according to embodiment 1-5 method production.
Embodiment 1
1) according to 15 parts of parts by weight slag as aggregate, 16 parts of steel-making slag powder, slag with washing 4 parts of dirt mud, slag 65 parts of polywater mud
Raw material ratio is carried out, and above-mentioned solid material is loaded into batch mixer, the water of injection solid matter weight 15% is mixed equal
It is even into mud；
2) by the uniform smearing release agent of mould inner wall, then the material-mud after mixing is poured into mould；
3) some a diameter of 6mm bar dowels are placed in the slurry of each mould, left outside slurry 1cm reinforcing bar with
Standby welding is used, and natural curing is stripped for 72 hours；
4) after being stripped, assembled according to design drawing.
Embodiment 2
1) according to 25 parts of parts by weight slag as aggregate, 25 parts of steel-making slag powder, slag with washing 10 parts of dirt mud, slag 45 parts of polywater mud
Raw material ratio is carried out, and above-mentioned solid material is loaded into batch mixer, the water of injection solid matter weight 10% is mixed equal
It is even into mud；
2) by the uniform smearing release agent of mould inner wall, then the material-mud after mixing is poured into mould；
3) some a diameter of 8mm bar dowels are placed in the slurry of each mould, left outside slurry 1cm reinforcing bar with
Standby welding is used, and natural curing is stripped for 72 hours；
4) after being stripped, assembled according to design drawing.
Embodiment 3
1) according to 20 parts of parts by weight slag as aggregate, 25 parts of steel-making slag powder, slag with washing 5 parts of dirt mud, slag 50 parts of polywater mud
Raw material ratio is carried out, and above-mentioned solid material is loaded into batch mixer, the water of injection solid matter weight 14% is mixed equal
It is even into mud；
2) by the uniform smearing release agent of mould inner wall, then the material-mud after mixing is poured into mould；
3) some a diameter of 8mm bar dowels are placed in the slurry of each mould, left outside slurry 1cm reinforcing bar with
Standby welding is used, and natural curing is stripped for 72 hours；
4) after being stripped, assembled according to design drawing.
Embodiment 4
1) according to 15 parts of parts by weight slag as aggregate, 25 parts of steel-making slag powder, slag with washing 10 parts of dirt mud, slag 50 parts of polywater mud
Raw material ratio is carried out, and above-mentioned solid material is loaded into batch mixer, the water of injection solid matter weight 13% is mixed equal
It is even into mud；
2) by the uniform smearing release agent of mould inner wall, then the material-mud after mixing is poured into mould；
3) some a diameter of 6mm bar dowels are placed in the slurry of each mould, left outside slurry 1cm reinforcing bar with
Standby welding is used, and natural curing is stripped for 72 hours；
4) after being stripped, assembled according to design drawing.
Embodiment 5
1) according to 20 parts of parts by weight slag as aggregate, 16 parts of steel-making slag powder, slag with washing 4 parts of dirt mud, slag 60 parts of polywater mud
Raw material ratio is carried out, and above-mentioned solid material is loaded into batch mixer, the water of injection solid matter weight 15% is mixed equal
It is even into mud；
2) by the uniform smearing release agent of mould inner wall, then the material-mud after mixing is poured into mould；
3) some a diameter of 10mm bar dowels are placed in the slurry of each mould, 1cm reinforcing bar is left outside slurry
In case welding is used, natural curing is stripped for 72 hours；
4) after being stripped, assembled according to design drawing.
Above-mentioned metallurgy carries out strength test with steel slag tank grid 1-5, as a result as shown in table 1：
Table 1 is metallurgical to use steel slag tank grid strength test results
As it can be seen from table 1 the metallurgical of the present invention uses steel slag tank grid moderate strength, slag steel can be both isolated after,
It can prevent from not crushing during transfer transport grid again, with very strong practicality.
The scientific research personnel of technical field can according to the above-mentioned change for making content and form unsubstantiality without departing from
Institute's essential scope of the present invention, therefore, the present invention is not limited to above-mentioned specific embodiment.
Claims (10)
1. a kind of metallurgy uses steel slag tank grid, it is characterised in that：Its raw material is made up of by weight percentage following components：
15~25 parts of slag as aggregate；
16~25 parts of steel-making slag powder；
4~10 parts of slag washing dirt mud；
45~65 parts of the polywater mud in slag ground.
2. metallurgy steel slag tank grid according to claim 1, it is characterised in that：The particle diameter of the slag as aggregate be 5~
15mm。
3. metallurgy steel slag tank grid according to claim 1, it is characterised in that：The fineness of the steel-making slag powder is
0.045mm square hole screens are tailed over less than 20%, and activity index is more than 95%.
4. metallurgy steel slag tank grid according to claim 1, it is characterised in that：The slag washes the metallic iron of dirt mud
Content≤1%, activity index >=65%, basicity factor >=1.8, specific surface area is 300~450m2/kg。
5. metallurgy steel slag tank grid according to claim 1, it is characterised in that：The slag polywater mud be by slag
Carry out adding retarder and mineralizer after first time grinding, then carry out what is obtained after grinding again.
6. metallurgy steel slag tank grid according to claim 5, it is characterised in that：Granularity after the slag first time grinding
For 100~150m2Granularity after/kg, further grinding is 310~560m2/kg。
7. metallurgy steel slag tank grid according to claim 5, it is characterised in that：The retarder addition is slag weight
The 0.1~0.5% of amount, the mineralizer addition is the 3.5~10.5% of slag weight.
8. metallurgy steel slag tank grid according to claim 5, it is characterised in that：The retarder is ardealite, lemon
At least one of sour gypsum, desulfurated plaster, fluorgypsum.
9. metallurgy steel slag tank grid according to claim 5, it is characterised in that：The mineralizer refer to by kaolin,
At least one of bentonite, sepiolite calcine the mineralising formed after 25~95min naturally with inorganic base at 850~1100 DEG C
Mixture.
10. the metallurgical preparation method with steel slag tank grid described in a kind of claim 1, it is characterised in that：Comprise the following steps：
1) added into raw material slag as aggregate, steel-making slag powder, slag with washing dirt mud and slag polywater mud mass percent be 10~
15% water, is mixed into slurry；
2) obtained slurry is poured into multiple grid moulds；
3) some reinforcing bars are placed in the slurry of each grid mould, are stripped after natural curing；
4) after being stripped, welding assembly is carried out to described reinforcing bar.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710371943.9A CN107176804A (en) | 2017-05-24 | 2017-05-24 | Metallurgy steel slag tank grid and its production method |
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|---|---|---|---|
| CN201710371943.9A CN107176804A (en) | 2017-05-24 | 2017-05-24 | Metallurgy steel slag tank grid and its production method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107858464A (en) * | 2017-11-03 | 2018-03-30 | 中冶宝钢技术服务有限公司 | A kind of flase floor and preparation method and purposes |
| CN111850188A (en) * | 2020-08-04 | 2020-10-30 | 中冶节能环保有限责任公司 | Casting residue molten state blocking treatment device and method |
| CN113666689A (en) * | 2021-08-11 | 2021-11-19 | 江苏联峰实业有限公司 | Slag basin partition plate |
| CN116287497A (en) * | 2023-03-07 | 2023-06-23 | 成都西部物联集团有限公司 | Deslagging process and device for tank truck |
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| CN101423362A (en) * | 2008-11-21 | 2009-05-06 | 中冶宝钢技术服务有限公司 | Steel slag polymer cement mortar |
| CN201254575Y (en) * | 2008-08-11 | 2009-06-10 | 中冶宝钢技术服务有限公司 | Slag tank grille for metallurgy |
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| CN104313210A (en) * | 2014-10-13 | 2015-01-28 | 南京梅山冶金发展有限公司 | Grid processing technology for treating metallurgical slag |
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| CN201254575Y (en) * | 2008-08-11 | 2009-06-10 | 中冶宝钢技术服务有限公司 | Slag tank grille for metallurgy |
| CN101423362A (en) * | 2008-11-21 | 2009-05-06 | 中冶宝钢技术服务有限公司 | Steel slag polymer cement mortar |
| CN103588405A (en) * | 2013-09-11 | 2014-02-19 | 武汉钢铁(集团)公司 | Method for producing geopolymer by use of steel slag washing ball-milling mud |
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|---|---|---|---|---|
| CN107858464A (en) * | 2017-11-03 | 2018-03-30 | 中冶宝钢技术服务有限公司 | A kind of flase floor and preparation method and purposes |
| CN107858464B (en) * | 2017-11-03 | 2019-07-26 | 中冶宝钢技术服务有限公司 | A kind of flase floor and preparation method and purposes |
| CN111850188A (en) * | 2020-08-04 | 2020-10-30 | 中冶节能环保有限责任公司 | Casting residue molten state blocking treatment device and method |
| CN113666689A (en) * | 2021-08-11 | 2021-11-19 | 江苏联峰实业有限公司 | Slag basin partition plate |
| CN116287497A (en) * | 2023-03-07 | 2023-06-23 | 成都西部物联集团有限公司 | Deslagging process and device for tank truck |
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