CN108059371A - It is a kind of to add tricalcium silicate to improve the method for converter slag activity - Google Patents
It is a kind of to add tricalcium silicate to improve the method for converter slag activity Download PDFInfo
- Publication number
- CN108059371A CN108059371A CN201711434592.8A CN201711434592A CN108059371A CN 108059371 A CN108059371 A CN 108059371A CN 201711434592 A CN201711434592 A CN 201711434592A CN 108059371 A CN108059371 A CN 108059371A
- Authority
- CN
- China
- Prior art keywords
- converter slag
- tricalcium silicate
- powder
- activity
- improve
- 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 49
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910021534 tricalcium silicate Inorganic materials 0.000 title claims abstract description 28
- 235000019976 tricalcium silicate Nutrition 0.000 title claims abstract description 28
- 230000000694 effects Effects 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 25
- 239000004568 cement Substances 0.000 claims abstract description 12
- 238000007885 magnetic separation Methods 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 239000004615 ingredient Substances 0.000 abstract description 4
- 241001062472 Stokellia anisodon Species 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 235000012241 calcium silicate Nutrition 0.000 description 1
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Disclosed by the invention is a kind of addition tricalcium silicate of metal smelt technical field to improve the method for converter slag activity, is comprised the following steps：A, converter slag crushed, sieved, after magnetic separation obtain 0~15mm powder；B, tricalcium silicate finished product is added into obtained converter slag powder, addition is the 10~30% of converter slag quality；C, the powder for obtaining step b is used for cement or concrete admixture after carrying out mixing, grinding.The beneficial effects of the invention are as follows：By the way that directly tricalcium silicate finished product is added in converter slag, play the role of making up to a certain extent in converter slag needed for tricalcium silicate ingredient and corresponding aquation, substantially increase the activity of converter slag, it is made to can be used as cement or concrete admixture, so that converter slag is more widely used.
Description
Technical field
The present invention relates to metal smelt technical fields more particularly to a kind of addition tricalcium silicate to improve converter slag activity
Method.
Background technology
Converter slag is the molten slag that slagging process generates in converter, and temperature is up to 1600 DEG C, and mainly lime is molten
Progressively course of dissolution in slag, and finally obtain the silicon containing a large amount of solid solution phase SS (solid matters of one or more solutes)
Hydrochlorate clinker.
In fusion process, the slag making materialses such as a certain amount of lime, the converter finally generated are added according to process for making requirement
Silicate containing gelling property in slag, but due to each oxide components content and having differences property of cement, including being molded work
Skill is different, and silicate content and quality are not as good as clinker.Wherein, tricalcium silicate (C3S) content (3~5%) is low compared with clinker
50%, cause early strength low；Dicalcium silicate (C2S) content (40%) is higher than clinker (20%) so that the later stage of slag
Intensity is higher than clinker；Ferrite and SS phases are up to 50%, influence its gelling.
Containing a certain amount of silicate in converter slag, but since tricalcium silicate content is few, causes C3S is relatively low, and C2S and
SS phases are excessive；In addition largely in liquid phase state in converter, crystallization rate is very fast and develops all relatively completions so that activity drop
It is low.For this purpose, need to study a kind of method realizes making up for tricalcium silicate ingredient, to reach balanced contents while is helped in aquation mistake
Tricalcium silicate participates in reaction to improve the activity of converter slag in journey.
The content of the invention
To overcome converter slag because activity is relatively low, the deficiencies of being not easy as cement, the technical problems to be solved by the invention
It is：A kind of addition tricalcium silicate is provided to improve the method for converter slag activity.
The technical solution adopted by the present invention to solve the technical problems is：
It is a kind of to add tricalcium silicate to improve the method for converter slag activity, comprise the following steps：
A, converter slag crushed, sieved, after magnetic separation obtain 0~15mm powder；
B, into obtained converter slag powder add tricalcium silicate finished product, addition for converter slag quality 10~
30%；
C, the powder for obtaining step b is used for cement or concrete admixture after carrying out mixing, grinding.
It is further that the powder index obtained in step a is metal Ferrum content<1%th, moisture<3%.
It is further that the powder fineness after being ground in step c reaches 100~300 mesh.
The beneficial effects of the invention are as follows：By the way that directly tricalcium silicate finished product is added in converter slag, to a certain degree
On play the role of making up in converter slag needed for tricalcium silicate ingredient and corresponding aquation, substantially increase the work of converter slag
Property, it is made to can be used as cement or concrete admixture, so that converter slag is more widely used.
Specific embodiment
With reference to embodiment, the present invention is further described.
It is a kind of to add tricalcium silicate to improve the method for converter slag activity, comprise the following steps：
A, converter slag crushed, sieved, after magnetic separation obtain 0~15mm powder, as long as during magnetic separation iron content compared with
Low material；
B, into obtained converter slag powder add tricalcium silicate finished product, addition for converter slag quality 10~
30%；
C, the powder for obtaining step b is used for cement or concrete admixture after carrying out mixing, grinding.
In order to preferably recycle iron ore, the powder index obtained in step a is metal Ferrum content<1%th, moisture<3%, such as
The moisture content of material that fruit obtains is more, and step c is carried out again after can first carrying out drying process.
In order to which the powder after grinding is enable to be directly used as cement or concrete admixture, should ensure that after being ground in step c
Powder fineness reach 100~300 mesh.
Embodiment one：
Using tricalcium silicate finished product as additive, first converter slag is crushed, is sieved, obtain 0 after magnetic separation~
15mm, metal Ferrum content<1%th, moisture<3% powder is with spare, then by tricalcium silicate finished product according in converter slag powder
In 25% ratio carry out with addition of powder finally is milled to fineness and reaches 200 mesh for cement or concrete admixture, can be carried
High 25 percentage points of converter slag activity.
Embodiment two：
Using tricalcium silicate finished product as additive, first converter slag is crushed, is sieved, obtain 0 after magnetic separation~
15mm, metal Ferrum content<1%th, moisture<3% powder is with spare, then by tricalcium silicate finished product according in converter slag powder
In 30% ratio carry out with addition of powder finally is milled to fineness and reaches 200 mesh for cement or concrete admixture, can be carried
High 35 percentage points of converter slag activity.
It can be seen that the present invention is risen to a certain extent by the way that directly tricalcium silicate finished product is added in converter slag
To the effect made up in converter slag needed for tricalcium silicate ingredient and corresponding aquation, the activity of converter slag is substantially increased,
It is made to can be used as cement or concrete admixture, so that converter slag is more widely used.
Claims (3)
1. a kind of add tricalcium silicate to improve the method for converter slag activity, it is characterized in that, comprise the following steps：
A, converter slag crushed, sieved, after magnetic separation obtain 0~15mm powder；
B, tricalcium silicate finished product is added into obtained converter slag powder, addition is the 10~30% of converter slag quality；
C, the powder for obtaining step b is used for cement or concrete admixture after carrying out mixing, grinding.
2. a kind of as described in claim 1 add tricalcium silicate to improve the method for converter slag activity, it is characterized in that：Step
The powder index obtained in a is metal Ferrum content<1%th, moisture<3%.
3. a kind of as described in claim 1 add tricalcium silicate to improve the method for converter slag activity, it is characterized in that：Step
Powder fineness after being ground in c reaches 100~300 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711434592.8A CN108059371A (en) | 2017-12-26 | 2017-12-26 | It is a kind of to add tricalcium silicate to improve the method for converter slag activity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711434592.8A CN108059371A (en) | 2017-12-26 | 2017-12-26 | It is a kind of to add tricalcium silicate to improve the method for converter slag activity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108059371A true CN108059371A (en) | 2018-05-22 |
Family
ID=62140387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711434592.8A Pending CN108059371A (en) | 2017-12-26 | 2017-12-26 | It is a kind of to add tricalcium silicate to improve the method for converter slag activity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108059371A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109534708A (en) * | 2018-12-19 | 2019-03-29 | 攀枝花钢城集团有限公司 | Concrete admixture preparation method |
-
2017
- 2017-12-26 CN CN201711434592.8A patent/CN108059371A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109534708A (en) * | 2018-12-19 | 2019-03-29 | 攀枝花钢城集团有限公司 | Concrete admixture preparation method |
| CN109534708B (en) * | 2018-12-19 | 2022-04-08 | 攀枝花钢城集团有限公司 | Preparation method of concrete admixture |
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| 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 |
Application publication date: 20180522 |
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| RJ01 | Rejection of invention patent application after publication |