CN106925414A - A kind of method for improving stainless steel refining slag grinding characters and activity - Google Patents
A kind of method for improving stainless steel refining slag grinding characters and activity Download PDFInfo
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- CN106925414A CN106925414A CN201710173459.5A CN201710173459A CN106925414A CN 106925414 A CN106925414 A CN 106925414A CN 201710173459 A CN201710173459 A CN 201710173459A CN 106925414 A CN106925414 A CN 106925414A
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- stainless steel
- refining slag
- steel refining
- grinding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/06—Selection or use of additives to aid disintegrating
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
A kind of method for improving stainless steel refining slag mill efficiency and activity, stainless steel refining slag, calcium carbonate and dipotassium tetraborate are mixed according to a certain ratio, grinding machine 120~150min of grinding is added, a certain proportion of calcium hydroxide and non-hydrate sodium metasilicate is added, 30~60min of grinding is further played；Wherein described component and the percentage by weight of each component are：Stainless steel refining slag 94~96%；Non-hydrate sodium metasilicate 0.5~3%；Calcium carbonate 0.5~1.5%；Calcium hydroxide 1~2%；Dipotassium tetraborate 0.1~0.5%；Wherein Na in non-hydrate sodium metasilicate2O content and SiO2The ratio between content：1.00~1.06.The present invention uses physics and chemically composited mode; improve its grinding characters, reduce production cost, improve its service efficiency, can further excite its activity on the basis of fineness is increased again; it is the recycling of stainless steel refining slag, preserves the ecological environment and play a positive role.Present invention process is simple, cheap, is also easy to popularization and application, possesses significant economic and social benefit.
Description
【Technical field】
The invention belongs to building material technical field, and in particular to one kind improves stainless steel refining slag grinding characters and work
The method of property.
【Background technology】
Stainless steel refining slag is the slag of generation during Steel Refining, and its main chemical compositions includes SiO2、Al2O3、
CaO and Fe2O3Deng wherein SiO2Content with CaO is higher, and respectively about 30%~40%, compared with blast-furnace cinder, refinery cinder is lived
Property it is lower, simultaneously because in grinding process easily produce bag ball and agglomeration, hinder stainless steel refining slag enters one
Step is levigate, thus has had a strong impact on mill efficiency and grain composition, makes the grinding energy of stainless steel refining slag and production cost
Increase.
Stainless steel refining slag its easy generation bag ball and agglomeration in grinding process, hinder stainless steel precision furnace
Slag it is further levigate, thus had a strong impact on mill efficiency and grain composition, increase grinding energy and production cost.In order to
Improve its grinding characters, reduce production cost, improve its service efficiency it may first have to solve bag ball and the reunion in grinding process
Phenomenon, while adding exciting agent, its activity is improved by using physics and chemically composited mode, and this will be stainless steel refining slag
Recycling, preserve the ecological environment and play a positive role.
【The content of the invention】
The technical problems to be solved by the invention are to provide a kind of improvement stainless steel refining slag mill efficiency and activity
Method, can efficiently solve bag ball and the agglomeration in grinding process, and improve mill efficiency and reduce grinding pow consumption,
The grain composition of stainless steel refining slag and activity are also improved significantly simultaneously.
What the present invention was realized in：
It is a kind of improve stainless steel refining slag mill efficiency and activity method, by stainless steel refining slag, calcium carbonate and
Dipotassium tetraborate mixes according to a certain ratio, adds grinding machine 120~150min of grinding, adds a certain proportion of calcium hydroxide and nine water are inclined
Sodium metasilicate, further plays 30~60min of grinding.
Further,
Wherein described component and the percentage by weight of each component are：
Further, Na in the non-hydrate sodium metasilicate2O content and SiO2The ratio between content：1.00~1.06.
The advantage of the invention is that：The present invention uses physics and chemically composited mode, improves its grinding characters, reduces production
Cost, improves its service efficiency, can further excite its activity on the basis of fineness is increased again, is stainless steel refining slag
Recycling, preserves the ecological environment and plays a positive role.Present invention process is simple, cheap, is also easy to popularization and application,
Possesses significant economic and social benefit.
【Specific embodiment】
Embodiment 1：
First by stainless steel refining slag, calcium carbonate and dipotassium tetraborate combined grinding 130min, non-hydrate sodium metasilicate is added
And calcium hydroxide, continue grinding 35min, its specific surface area is determined (by GB/T8074-2008《Method of determination for specific surface of cement
Bo Shi methods》Regulation method of testing perform) and activity index (press GB/T18046-2008《For the granulation in cement and concrete
Ground granulated blast furnace slag》Regulation method of testing perform), and be not incorporated into non-hydrate sodium metasilicate, calcium carbonate, calcium hydroxide and dipotassium tetraborate
Pure stainless steel refining slag be compared, it the results are shown in Table 1.Na in non-hydrate sodium metasilicate2O content and SiO2The ratio between content：
1.00~1.06.
Table 1：
| Sample | Specific surface area/m2.kg-1 | 7d activity indexs/% | 28d activity indexs/% |
| Authentic specimen | 336 | 46 | 63 |
| Embodiment 1 | 425 | 68 | 89 |
Embodiment 2：
First by stainless steel refining slag, calcium carbonate and dipotassium tetraborate combined grinding 150min, non-hydrate sodium metasilicate is added
And calcium hydroxide, continue grinding 45min, its specific surface area is determined (by GB/T8074-2008《Method of determination for specific surface of cement
Bo Shi methods》Regulation method of testing perform) and activity index (press GB/T18046-2008《For the granulation in cement and concrete
Ground granulated blast furnace slag》Regulation method of testing perform), and be not incorporated into non-hydrate sodium metasilicate, calcium carbonate, calcium hydroxide and dipotassium tetraborate
Pure stainless steel refining slag be compared, it the results are shown in Table 2.Na in non-hydrate sodium metasilicate2O content and SiO2The ratio between content：
1.00~1.06.
Table 2：
| Sample | Specific surface area/m2.kg-1 | 7d activity indexs/% | 28d activity indexs/% |
| Authentic specimen | 336 | 46 | 63 |
| Embodiment 2 | 390 | 61 | 81 |
Embodiment 3：
First by stainless steel refining slag, calcium carbonate and dipotassium tetraborate combined grinding 120min, non-hydrate sodium metasilicate is added
And calcium hydroxide, continue grinding 30min, its specific surface area is determined (by GB/T8074-2008《Method of determination for specific surface of cement
Bo Shi methods》Regulation method of testing perform) and activity index (press GB/T18046-2008《For the granulation in cement and concrete
Ground granulated blast furnace slag》Regulation method of testing is performed), and it is hot with the pure ore deposit for being not incorporated into non-hydrate sodium metasilicate, calcium carbonate and calcium hydroxide
Stove stainless steel Water Quenching Slag is compared, and it the results are shown in Table 3.Na in non-hydrate sodium metasilicate2O content and SiO2The ratio between content：1.00~
1.06。
Table 3：
| Sample | Specific surface area/m2.kg-1 | 7d activity indexs/% | 28d activity indexs/% |
| Authentic specimen | 336 | 46 | 63 |
| Embodiment 3 | 410 | 66 | 88 |
The present invention uses physics and chemically composited mode, improves its grinding characters, reduces production cost, improves it and uses effect
Rate, can further excite its activity on the basis of fineness is increased again, be the recycling of stainless steel refining slag, protection life
State environment plays a positive role.Present invention process is simple, cheap, is also easy to popularization and application, possess it is significant economical and
Social benefit.
Preferable implementation use-case of the invention is the foregoing is only, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent and improvement for being made etc., should be included in of the invention
Within protection domain.
Claims (3)
- It is 1. a kind of to improve stainless steel refining slag mill efficiency and active method, it is characterised in that：The method is, by stainless steel Refinery cinder, calcium carbonate and dipotassium tetraborate mix according to a certain ratio, add grinding machine 120~150min of grinding, add certain ratio The calcium hydroxide and non-hydrate sodium metasilicate of example, further play 30~60min of grinding.
- 2. a kind of stainless steel refining slag mill efficiency that improves as claimed in claim 1 is with active method, it is characterised in that：Wherein described component and the percentage by weight of each component are：
- 3. a kind of stainless steel refining slag mill efficiency that improves as claimed in claim 2 is with active method, it is characterised in that： Na in the non-hydrate sodium metasilicate2O content and SiO2The ratio between content：1.00~1.06.
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| CN201710173459.5A CN106925414B (en) | 2017-03-22 | 2017-03-22 | A kind of improvement stainless steel refining slag grinding characters and active method |
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| CN106925414A true CN106925414A (en) | 2017-07-07 |
| CN106925414B CN106925414B (en) | 2019-08-13 |
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Citations (8)
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|---|---|---|---|---|
| CN1078446A (en) * | 1992-05-13 | 1993-11-17 | 中国五金矿产进出口总公司 | Dross and slag cement |
| CN1657473A (en) * | 2005-02-04 | 2005-08-24 | 攀钢集团攀枝花钢铁研究院 | High-titanium blast furnace slag concrete admixture and production method thereof |
| CN101687701A (en) * | 2007-01-19 | 2010-03-31 | 塞拉泰克有限公司 | High strength cement, mortar and concrete including industrial by-products |
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| CN102559960A (en) * | 2012-03-13 | 2012-07-11 | 北京联合荣大工程材料有限责任公司 | Steel slag treating method |
| CN102917998A (en) * | 2010-01-11 | 2013-02-06 | 塞拉泰克有限公司 | Lactate activated cement and activator compositions |
| CN103502177A (en) * | 2011-04-21 | 2014-01-08 | 建筑研究和技术有限公司 | Accelerator composition |
| CN105399349A (en) * | 2014-09-05 | 2016-03-16 | 昂国企业有限公司 | High-activity iron and steel slag powder and preparation method thereof |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078446A (en) * | 1992-05-13 | 1993-11-17 | 中国五金矿产进出口总公司 | Dross and slag cement |
| CN1657473A (en) * | 2005-02-04 | 2005-08-24 | 攀钢集团攀枝花钢铁研究院 | High-titanium blast furnace slag concrete admixture and production method thereof |
| CN101687701A (en) * | 2007-01-19 | 2010-03-31 | 塞拉泰克有限公司 | High strength cement, mortar and concrete including industrial by-products |
| CN102917998A (en) * | 2010-01-11 | 2013-02-06 | 塞拉泰克有限公司 | Lactate activated cement and activator compositions |
| CN102226224A (en) * | 2011-04-21 | 2011-10-26 | 江苏锋泰建材科技有限公司 | Slag grinding aid and preparation method thereof |
| CN103502177A (en) * | 2011-04-21 | 2014-01-08 | 建筑研究和技术有限公司 | Accelerator composition |
| CN102559960A (en) * | 2012-03-13 | 2012-07-11 | 北京联合荣大工程材料有限责任公司 | Steel slag treating method |
| CN105399349A (en) * | 2014-09-05 | 2016-03-16 | 昂国企业有限公司 | High-activity iron and steel slag powder and preparation method thereof |
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| CN106925414B (en) | 2019-08-13 |
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