CN109928653A - A method of utilizing the direct cement of molten state blast furnace slag - Google Patents
A method of utilizing the direct cement of molten state blast furnace slag Download PDFInfo
- Publication number
- CN109928653A CN109928653A CN201910290620.6A CN201910290620A CN109928653A CN 109928653 A CN109928653 A CN 109928653A CN 201910290620 A CN201910290620 A CN 201910290620A CN 109928653 A CN109928653 A CN 109928653A
- Authority
- CN
- China
- Prior art keywords
- blast furnace
- slag
- molten state
- furnace slag
- raw material
- 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
Links
- 239000002893 slag Substances 0.000 title claims abstract description 96
- 238000000034 method Methods 0.000 title claims abstract description 45
- 239000004568 cement Substances 0.000 title claims abstract description 39
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 230000006698 induction Effects 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000000227 grinding Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- 229910052593 corundum Inorganic materials 0.000 claims description 8
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052681 coesite Inorganic materials 0.000 claims description 5
- 229910052906 cristobalite Inorganic materials 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 229910052682 stishovite Inorganic materials 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 229910052905 tridymite Inorganic materials 0.000 claims description 5
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 claims description 4
- 235000019738 Limestone Nutrition 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 239000010881 fly ash Substances 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 239000003469 silicate cement Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000000265 homogenisation Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 239000007790 solid phase Substances 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000011449 brick Substances 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- ULGYAEQHFNJYML-UHFFFAOYSA-N [AlH3].[Ca] Chemical compound [AlH3].[Ca] ULGYAEQHFNJYML-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
- C04B7/42—Active ingredients added before, or during, the burning process
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
- C04B7/46—Burning; Melting electric
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacture Of Iron (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Furnace Details (AREA)
Abstract
A kind of method using the direct cement of molten state blast furnace slag of the invention, processing step are as follows: (1) molten state blast furnace slag is flowed into vortex induction heating type high temperature reduction furnace and is kept the temperature；(2) it is required according to cement composition, supplying calcareous raw material, siliceous raw material, ferriferous raw material etc., high-temperature homogenization；(3) liquid slag is directly becoming clinker through air-cooled cooling, broken, grinding after after component regulates and controls；(4) air-cooled process can trap raw material preheating of the hot wind for ironmaking processes.This method can realize that blast furnace slag complete resource utilizes, and can save great lot of water resources and utilize clinker thermal energy.
Description
Technical field:
The invention belongs to technical field of blast furnace utilization, and in particular to a kind of using the direct cement of molten state blast furnace slag
Method.
Background technique:
Blast furnace slag is the slag industrial solid wastes of discharge during blast furnace ironmaking, according to grade of ore difference, 1 ton of iron row of every refining
0.3~1 ton of slag out, the grade of ore is lower, and bed drain purge is bigger.The various techniques that blast furnace molten slag can be used are processed into following various materials
Material.China is usually that blast furnace slag is processed into grain slag, slag rubble, expanded slag and slag pearl etc..Grain slag is hot melt state
Blast furnace slag be placed in water the process of rapid cooling, mainly have slag bath water quenching or stokehold water quenching two ways.Grain slag is used as building materials
In production cement and concrete, since grain slag has potential hydraulic gelling property, in clinker, lime, gypsum equal excitation
Under agent effect, it can be used as good cement raw material, can be made into portland slag cement, gypsum slag cement, lime kiln dust water
Mud, slag brick, slag concrete etc..Slag rubble is blast furnace slag in specified pit or cinder field natural cooling or the cooling shape of water drenching
After comparatively dense slag, by excavating, being crushed, a kind of crushed stone material obtained from magnetic separation and screening.
To realize that efficient utilization and the valuable element of blast furnace slag extract, China has carried out a large amount of R&D work, such as king
Firm et al. invention " a kind of method of blast furnace slag and vessel slag comprehensive utilization, application number: CN201610045048.3 " first will be high
Clinker powder and vessel slag powder are sufficiently mixed and stir evenly, and then react with hydrochloric acid: obtaining the first leachate and second solid phase object, so
It isolates to obtain silica gel from the second solid phase object afterwards；Then the first leachate is reacted to obtain the second leaching with sodium hydroxide
Then the second solid phase object is successively rinsed and is dried by liquid and second solid phase object, obtain the double hydroxides of calcium aluminum-based layered
Produce product.
Molten state blast furnace slag is essential by-product in iron-making production, the recycling benefit of sensible heat resource abundant
With being one of urgent problem to be solved in the following blast furnace slag treatment process.The inventions such as Li Hong " utilize molten blast furnace slag preparation
Water-permeable brick and preparation method thereof, application number: CN201710891647.1 " is prepared by the raw material of following parts by weight: melting
Blast furnace slag: 70~85 parts；Cement: 5~10 parts；Dolomite:, directly preparing water-permeable brick using molten blast furnace slag by 10~20 parts, by
In molten blast furnace slag without Water Quenching technique, not only saved a large amount of cooling waters, but can efficiently, make full use of dross sensible heat
Energy.For blast furnace slag tapping temperature up to 1400 DEG C or more, therefore slag per ton, which contains, is equivalent to the heat of 60kg standard coal, carries out height
The waste heat of clinker recycles and comprehensive utilization, is the energy-saving effective way of steel industry.
Summary of the invention:
The purpose of the invention is to make full use of the mineral resources of molten state blast furnace slag and sensible heat energy, a kind of benefit is provided
Molten state blast furnace slag is flowed into high temperature induction that is, using iron red mud as raw material with the method for the direct cement of molten state blast furnace slag
It is formed under furnace high temperature using vortex stirring mode batching adjusting, calcareous original needed for requiring supplying cement composition according to cement composition
Material, siliceous raw material etc., high-temperature homogenization, liquid slag is directly becoming clinker through cooling, broken, grinding after adjustment, utilizes height
The heat of warm clinker eliminates the process for preparing clinker again.
To achieve the above object, the invention adopts the following technical scheme:
A method of utilizing the direct cement of molten state blast furnace slag, comprising the following steps:
(1) molten state blast furnace slag is flowed into vortex stirring formula induction heater, keeps the temperature 1~1.5h；
(2) according to clinker component requirements, after liquid slag is adjusted component, stirring evenly, and carry out concurrent heating temperature
To 1400~1550 DEG C；
(3) liquid slag is cooled to room temperature after adjustment component, broken, grinding is directly becoming clinker, meets ordinary silicon
Acid salt cement 425# national standard.
In the step (1), the charging of molten state blast furnace slag is carried out using vortex batching mode, hardly possible is added to solve ingredient
The problem of.
In the step (1), molten state blast furnace slag includes chemical composition and mass percentage are as follows: and CaO 31~
50%, SiO231~44%, Al2O36~18%, surplus is rare metal and other impurities, 1400-1550 DEG C of slag temperature.
In the step (2), liquid slag adjusts component detailed process are as follows: calcareous raw material, siliceous raw material and/or iron is added
Matter raw material, in which: the calcareous raw material selects at least one of lime stone, carbide slag；Siliceous raw material is selected kaolin, is sticked
At least one of soil, flyash, mine tailings；Ferriferous raw material selects at least one of iron red mud, scum, steel slag.
In the step (2), liquid slag adjustment component operation carries out in the induction furnace with heater.
In the step (3), the type of cooling is air-cooled, and can trap hot wind for ironmaking processes in air-cooled process
Raw material preheating.
Compared with prior art, the features of the present invention and beneficial effect are:
(1) method of the invention using the direct cement of molten state blast furnace slag makes full use of all mineral moneys in blast furnace slag
Source, while reducing the discharge of blast furnace slag；
(2) clinker per ton can be made to reduce water consume using the method for the invention using the direct cement of molten state blast furnace slag
10-15 tons.
(3) thermal energy for making full use of molten blast furnace slag, make to prepare using molten blast furnace slag the production process of clinker without
It need to be additionally carried out heating roasting, also save fuel.Production energy consumption can be significantly reduced relative to traditional cement production technique.
(4) ingredient is added using vortex in the method for the present invention, can solve the problem that solid powder hardly possible is added in high temperature.
(5) the problem of timesharing of liquid slag adjustment group uses the stove with induction heater, can solve blending process concurrent heating.
Detailed description of the invention:
Fig. 1 is the method and process flow diagram of the invention using the direct cement of molten state blast furnace slag.
Specific embodiment:
Below with reference to embodiment, the present invention is described in further detail.
Process flow diagram such as Fig. 1 institute of the method using the direct cement of molten state blast furnace slag in following embodiment
Show.
Embodiment 1
A method of utilizing the direct cement of molten state blast furnace slag, comprising the following steps:
Raw material molten state blast furnace slag chemical composition mass percentage is CaO 39%, SiO234%, Al2O39%, it is remaining
Amount be rare metal and other impurities, 1550 DEG C of slag temperature.
(1) molten state blast furnace slag is flowed into vortex stirring induction heating high temperature furnace and keeps the temperature 1h；
(2) it is required according to cement composition, supplying lime contains scum, and carries out high-temperature homogenization at 1400 DEG C；
(3) liquid slag through it is air-cooled to room temperature, broken, grinding, clinker, CaO, SiO in clinker is made2、Al2O3、
Fe2O3Content be respectively 62%, 24%, 4%, 2.5%, meet the component requirements of clinker, strength of cement meets ordinary silicon
Acid salt cement 425# national standard, air-cooled process trapping hot wind are used for the raw material preheating of ironmaking processes.
Embodiment 2
A method of utilizing the direct cement of molten state blast furnace slag, comprising the following steps:
Raw material molten state blast furnace slag chemical composition mass percentage is CaO 40%, SiO232%, Al2O310%, it is remaining
Amount be rare metal and other impurities, 1500 DEG C of slag temperature.
(1) molten state blast furnace slag is flowed into stirring examination high temperature induction furnace and keeps the temperature 1.5h；
(2) it is required according to cement composition, is incorporated carbide slag, iron red mud, and carry out high-temperature homogenization at 1500 DEG C；
(3) liquid slag through it is air-cooled to room temperature, broken, grinding, clinker, CaO, SiO in clinker is made2、Al2O3、
Fe2O3Content be respectively 63%, 22%, 4%, 2.5%, meet the component requirements of clinker, strength of cement meets ordinary silicon
Acid salt cement 425# national standard, air-cooled process trapping hot wind are used for the raw material preheating of ironmaking processes.
Embodiment 3
A method of utilizing the direct cement of molten state blast furnace slag, comprising the following steps:
Raw material molten state blast furnace slag chemical composition mass percentage is CaO 42%, SiO240%, Al2O312%, it is remaining
Amount be rare metal and other impurities, 1400 DEG C of slag temperature.
(1) molten state blast furnace slag is flowed into stirring examination high temperature induction furnace and keeps the temperature 1.5h；
(2) it is required according to cement composition, is incorporated lime stone, scum, complies with cement requirement, and carry out at 1550 DEG C
High-temperature homogenization；
(3) liquid slag through it is air-cooled to room temperature, broken, grinding, clinker, CaO, SiO in clinker is made2、Al2O3、
Fe2O3Content be respectively 63%, 23%, 5%, 2.5%, meet the component requirements of clinker, strength of cement meets ordinary silicon
Acid salt cement 425# national standard, air-cooled process trapping hot wind are used for the raw material preheating of ironmaking processes.
Claims (6)
1. a kind of method using the direct cement of molten state blast furnace slag, which comprises the following steps:
(1) molten state blast furnace slag is flowed into vortex stirring formula induction heater, keeps the temperature 1~1.5h；
(2) according to clinker component requirements, after liquid slag is adjusted component, stirring evenly, and carry out concurrent heating temperature extremely
1400~1550 DEG C；
(3) liquid slag is cooled to room temperature after adjustment component, broken, grinding is directly becoming clinker, meets normal silicate
Cement 425# national standard.
2. the method according to claim 1 using the direct cement of molten state blast furnace slag, which is characterized in that the step
Suddenly in (1), the charging of molten state blast furnace slag is carried out using vortex batching mode, to solve the problems, such as that it is difficult that ingredient is added.
3. the method according to claim 1 using the direct cement of molten state blast furnace slag, which is characterized in that the step
Suddenly in (1), molten state blast furnace slag includes chemical composition and mass percentage are as follows: CaO 31~50%, SiO231~44%,
Al2O36~18%, surplus is hydrogen-oxygen and rare metal, 1400-1550 DEG C of slag temperature.
4. the method according to claim 1 using the direct cement of molten state blast furnace slag, which is characterized in that the step
Suddenly in (2), liquid slag adjusts component detailed process are as follows: calcareous raw material, siliceous raw material and/or ferriferous raw material is added, in which: described
Calcareous raw material select lime stone, at least one of carbide slag；Siliceous raw material selects kaolin, clay, flyash, mine tailings
At least one of；Ferriferous raw material selects at least one of iron red mud, scum, steel slag.
5. the method according to claim 1 using the direct cement of molten state blast furnace slag, which is characterized in that the step
Suddenly in (2), liquid slag adjustment component operation carries out in the induction furnace with heater.
6. the method according to claim 1 using the direct cement of molten state blast furnace slag, which is characterized in that the step
Suddenly in (3), the type of cooling is air-cooled, and can trap raw material preheating of the hot wind for ironmaking processes in air-cooled process.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910290620.6A CN109928653A (en) | 2019-04-11 | 2019-04-11 | A method of utilizing the direct cement of molten state blast furnace slag |
| PCT/CN2019/090843 WO2020206834A1 (en) | 2019-04-11 | 2019-06-12 | Method for directly cementing molten blast furnace slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910290620.6A CN109928653A (en) | 2019-04-11 | 2019-04-11 | A method of utilizing the direct cement of molten state blast furnace slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109928653A true CN109928653A (en) | 2019-06-25 |
Family
ID=66989769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910290620.6A Pending CN109928653A (en) | 2019-04-11 | 2019-04-11 | A method of utilizing the direct cement of molten state blast furnace slag |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109928653A (en) |
| WO (1) | WO2020206834A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981232A (en) * | 2019-11-19 | 2020-04-10 | 武汉理工大学 | Steel slag doped adhesive and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105291A (en) * | 1985-07-10 | 1987-01-07 | 日本磁力选矿株式会社 | Utilize the method for steel-making slag |
| CN1792944A (en) * | 2005-12-30 | 2006-06-28 | 刘继清 | Process for producing silicate cement chamotte by blast furnace liquid residue and apparatus thereof |
| CN101941807A (en) * | 2010-07-07 | 2011-01-12 | 杨振立 | Process flow and equipment for producing cement clinker by high-temperature molten-state slag |
| CN107721216A (en) * | 2017-08-22 | 2018-02-23 | 上海驰春节能科技有限公司 | A kind of technique using molten blast furnace slag liquid phase calcination of cement clinker |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102197A (en) * | 1987-03-18 | 1988-11-02 | 孙竹良 | The novel process of fechnology for direct conversion of blast furnace melting slag into cement clinker |
| CN101302568A (en) * | 2008-05-23 | 2008-11-12 | 郑州永通特钢有限公司 | Waste slag comprehensive recovery and utilization method for non-ferrous metals industry |
| CN101660014A (en) * | 2009-09-24 | 2010-03-03 | 中钢集团鞍山热能研究院有限公司 | Molten blast furnace slag sensible heat recovery method and device |
| KR101343813B1 (en) * | 2012-10-18 | 2013-12-20 | 한국세라믹기술원 | Apparatus for manufacturing the cement clinker |
-
2019
- 2019-04-11 CN CN201910290620.6A patent/CN109928653A/en active Pending
- 2019-06-12 WO PCT/CN2019/090843 patent/WO2020206834A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105291A (en) * | 1985-07-10 | 1987-01-07 | 日本磁力选矿株式会社 | Utilize the method for steel-making slag |
| CN1792944A (en) * | 2005-12-30 | 2006-06-28 | 刘继清 | Process for producing silicate cement chamotte by blast furnace liquid residue and apparatus thereof |
| CN101941807A (en) * | 2010-07-07 | 2011-01-12 | 杨振立 | Process flow and equipment for producing cement clinker by high-temperature molten-state slag |
| CN107721216A (en) * | 2017-08-22 | 2018-02-23 | 上海驰春节能科技有限公司 | A kind of technique using molten blast furnace slag liquid phase calcination of cement clinker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981232A (en) * | 2019-11-19 | 2020-04-10 | 武汉理工大学 | Steel slag doped adhesive and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020206834A1 (en) | 2020-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106191344B (en) | A kind of method for mixing the production of slag melting and reducing and modifier treatment | |
| CN106048109B (en) | A kind of method for mixing the recycling of slag melting and reducing and modifier treatment | |
| Reddy et al. | Utilization of Basic Oxygen Furnace (BOF) slag in the production of a hydraulic cement binder | |
| CN102757211B (en) | Aerated concrete block produced by specially-made mineral waste residue and tailings steel slag and production method of aerated concrete block | |
| CN105060744B (en) | A kind of preparation method of belite sulphate aluminium cement | |
| CN106755654A (en) | A kind of method of slag metallurgy melting also original production | |
| CN106755656A (en) | A kind of method that slag metallurgy one-step method is reclaimed | |
| CN102173700B (en) | Minimum inflation low heat silicate cement | |
| CN106755651A (en) | A kind of method reclaimed containing rare earth and/or niobium slag metallurgy one-step method | |
| CN106431104A (en) | Method for preparing building material from metallurgy slag | |
| CN111977997B (en) | Control method for realizing steel slag reduction modification, water-quenched slag and application thereof | |
| CN106348626A (en) | Method for recovering converter molten steel slag to produce concrete admixture | |
| CN100357208C (en) | Steel slag modification and steel slag cement | |
| CN112851152B (en) | Cement clinker and cement prepared from lead-zinc smelting furnace slag and preparation method thereof | |
| CN103833241A (en) | Method for preparing cement clinker from converter slag | |
| CN113174456A (en) | Comprehensive utilization method for smelting reduction of high-iron red mud by bottom-top combined blowing | |
| CN106148699B (en) | The method for preparing iron-nickel alloy by-product activity mineral hot furnace granulated slag using red mud and lateritic nickel ore | |
| CN112341107A (en) | Method for energy-saving production of composite high-strength cement by using various industrial wastes | |
| CN115636607A (en) | Method and system for cooperatively treating high-iron red mud and electrolytic manganese slag | |
| CN107759176A (en) | The solid waste comprehensive utilization of slag powders makes building material | |
| CN106242280B (en) | It is a kind of using liquid blast furnace cinder as emulsion opal glass of main material and preparation method thereof | |
| CN106966617B (en) | Easy fired belite-aluminium sulfate-sulphur ferrous aluminate-sulphur calcium silicate cement clinker method | |
| CN112126774A (en) | Method for producing sintered ore by using blast furnace granulated slag | |
| CN109928653A (en) | A method of utilizing the direct cement of molten state blast furnace slag | |
| Li et al. | Recent progress of hot stage processing for steelmaking slags in China considering stability and heat recovery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190625 |