CN102503220B - Composite steel slag grinding aid - Google Patents
Composite steel slag grinding aid Download PDFInfo
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- CN102503220B CN102503220B CN 201110326892 CN201110326892A CN102503220B CN 102503220 B CN102503220 B CN 102503220B CN 201110326892 CN201110326892 CN 201110326892 CN 201110326892 A CN201110326892 A CN 201110326892A CN 102503220 B CN102503220 B CN 102503220B
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- grinding aid
- steel slag
- grinding
- slag
- improve
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Abstract
The invention relates to a composite steel slag grinding aid, which solves the problems that grinding aid in prior art is not suitable for grinding steel slag, the grinding time is long, the grinding efficiency is low, the activity of early period in active utilization of steel slag is low, and content of particles not participating reaction is high. The technical scheme comprises the components by weight percentage as follows: 15-30% of surfactant, 20-40% of grinding aid, 20-40% of adjustor, and 5-25% of carrier. The grinding aid provided by the invention can effectively shorten the grinding time, improve the grinding characteristics and improve effective content of hydrated particles so as to improve the hydrating activity of steel slag. Ground steel slag has high strength, large comparison surface, and small doping amount to further improve the doping amount of steel slag recycled.
Description
Technical field
The present invention relates to a kind of grinding aid, concrete is to say a kind of clad steel slag-grinding aid.
Background technology
Existing grinding aid spininess commonly used is to cement production process, and the grinding aid that is usually used in cement mainly is divided into 3 classes: polymer-inorganic salt, polymerization organic salt and complex chemical compound.Exist with liquid, solid and gas form.Liquid grinding aid has amine, alcohols, some inorganic salts and water; The gas grinding aid has water vapour, acetone gas and rare gas element etc.; The solid grinding aid has colloid carbon black, calcium stearate, inorganic salt POTASSIUM FERROCYANIDE 99, stearic acid etc.
It is different fully that mineralogical composition in slag and the cement generates the state characteristics, be that inert fraction is high iron content sosoloid in the slag, active ingredient is similar cement active substance, two kinds of components are mingled with growth, make steel slag particle be difficult to grinding to effective aquation particle diameter, cause the active low problem of slag, thereby adopt existing cement grinding aid not only to exist the grinding time long, powder efficient utilization is low, early activity is low in the active utilization of slag, do not participate in the big problem of reaction particles content, the slag that carries out behind the grinding also exists intensity low, specific surface is little, and then the few problem of slag parameter during recycling, can not reach and improve the slag grinding characters, improve the purpose of slag activity.
Summary of the invention
The objective of the invention is in order to solve the problems of the technologies described above, a kind of grinding aid at slag is provided, this grinding aid can effectively shorten the grinding time, improve grinding characters, thereby improve effective aquation granule content and improve the slag hydration activity, slag intensity height behind the grinding, specific surface are big, and incorporation is few, and then has improved the steel slag content when recycling.
Technical scheme comprises the component of following weight percentage ratio: the 15%-30% tensio-active agent, and the 20%-40% grinding aid, 20-40% adjusts agent, the 5-25% carrier, wherein carrier is a kind of in silica flour, quartz sand powder, the flyash; Tensio-active agent is at least a in trolamine, glycerol, glycol ether or the octanol; Grinding aid is Mierocrystalline cellulose, quality calcium sulphonate, sodium lignosulfonate, at least a in molasses or the sugared calcium; The adjustment agent is at least a in phosphoric acid salt, polyphosphoric acid salt or the alkyl sodium sulfonate.
Described tensio-active agent is made up of trolamine and glycerol, and its weight ratio is 0.5～2.5: 1.
Described grinding aid is made up of calcium lignin sulphonate.
Described adjustment agent is received by polyphosphoric acid and sodium laurylsulfonate is formed, and its weight ratio is 0.7-1.4: 1.
The present invention be directed to that the characteristics especial manufacture of slag steel forms, each component role in prescription is: silica flour, quartz sand powder or flyash can be so that grinding aid evenly disperse as carrier, add-on control is at 5-25% (preferred 10%-20%), too much can influence slag character, easily make slag that conglomeration can take place at least excessively; Tensio-active agent is selected the liquid promoting agent for use, and its effect in prescription is to influence the slag surface charge, the dispersion mill fine particle, and add-on is controlled at 15%-30%, and (preferred 15%-25%) too much can suppress the grinding aid effect, and crossing at least can be inoperative; The effect of grinding aid is to be beneficial to separating of difficult mill and easy mill material, and its add-on control too much can suppress Action of Surfactant at 20%-40% (preferred 25%-35%), and crossing at least can be inoperative; The effect of adjusting agent is to adjust agreeing with between grinding aid and the promoting agent, and add-on should be controlled at 20-40%, and (preferred 25%-35%) too much can influence the grinding effect, crosses the balance that can influence grinding aid and promoting agent at least.
Clad steel slag-grinding aid usage quantity of the present invention is less, only needs the 0.03-0.08% that adds the slag gross weight to get final product, and is preferably now with the current, and described slag is preferably through magnetic separation and to control moisture be slag below 5% weight percentage.
Above-mentioned a plurality of component cooperates jointly, take mutually together, be implemented in the effective grinding to slag, clad steel slag-grinding aid of the present invention not only works the surface energy effect that reduces slag at the grinding initial stage, stop crack closure, and can also impel the expansion of crackle, accelerate the disconnection of steel slag particle, the clad steel slag-grinding aid can also produce selective adsorption and electrically neutralization on the slag surface on the other hand, eliminate electrostatic effect, and make that inert fraction separates with activeconstituents is easier in the slag, making the slag powder reach effective size of grain content increases, and make that activeconstituents to be exposed in the hydrated environment, thereby hydration activity is largely increased.Clad steel slag-grinding aid mill efficiency height of the present invention, steel-making slag powder time consuming are reduced to 30 minutes to 1 hour, slag excellent performance behind the grinding, and intensity height, specific surface are big, make the slag incorporation increase (can increase 5%-15%).
Embodiment
Table 1: proportioning raw materials (weight percentage):
After mixing respectively by the component of above-described embodiment 1-8, amount with the 0.03-0.08% of slag gross weight adds in the slag, use grinding Φ 500 * 500 cement testing laboratory mills 30-60 minute then, with slag (comparative example) comparison that does not add after compound slag grinding aid of the present invention carries out grinding, be that 50% weight percentage is made steel slag cement with the slag incorporation equally, see Table 2.
The slag performance relatively behind table 2 grinding
Claims (4)
1. a clad steel slag-grinding aid is characterized in that, comprises the component of following weight percentage ratio: the 15%-30% tensio-active agent, and the 25%-35% grinding aid, 20-40% adjusts agent, the 5-25% carrier, wherein carrier is a kind of in silica flour, quartz sand powder, the flyash; Tensio-active agent is at least a in trolamine, glycerol, glycol ether or the octanol; Grinding aid is Mierocrystalline cellulose, calcium lignin sulphonate, sodium lignosulfonate, at least a in molasses or the sugared calcium; The adjustment agent is at least a in phosphoric acid salt, polyphosphoric acid salt or the sodium laurylsulfonate.
2. clad steel slag-grinding aid as claimed in claim 1 is characterized in that, described tensio-active agent is made up of trolamine and glycerol, and its weight ratio is 0.5～2.5:1.
3. clad steel slag-grinding aid as claimed in claim 1 or 2 is characterized in that, described grinding aid is calcium lignin sulphonate.
4. clad steel slag-grinding aid as claimed in claim 1 or 2 is characterized in that, described adjustment agent is made up of sodium polyphosphate and sodium laurylsulfonate, and its weight ratio is 0.7～1.4:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110326892 CN102503220B (en) | 2011-10-25 | 2011-10-25 | Composite steel slag grinding aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110326892 CN102503220B (en) | 2011-10-25 | 2011-10-25 | Composite steel slag grinding aid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102503220A CN102503220A (en) | 2012-06-20 |
| CN102503220B true CN102503220B (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110326892 Expired - Fee Related CN102503220B (en) | 2011-10-25 | 2011-10-25 | Composite steel slag grinding aid |
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| CN (1) | CN102503220B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104844057A (en) * | 2015-05-29 | 2015-08-19 | 湖州华仑助剂科技有限公司 | Composite cement grinding aid |
| CN107098609A (en) * | 2017-04-26 | 2017-08-29 | 阜阳市鑫源建材有限公司 | A kind of slag grinding aid of macromolecule/Small molecular surfactant compounding and preparation method thereof |
| CN107487999A (en) * | 2017-08-04 | 2017-12-19 | 南京成弘建新材料有限公司 | Slag modifying agent and preparation method thereof |
| CN108059370A (en) * | 2017-11-29 | 2018-05-22 | 淮阴工学院 | Multiple elements design steel slag grinding aid |
| CN108424012B (en) * | 2018-04-13 | 2021-01-01 | 沈阳建筑大学 | Liquid grinding aid for improving grinding efficiency of steel slag |
| CN110627175B (en) * | 2019-09-02 | 2021-11-16 | 济南大学 | Steel slag-based flocculant and preparation method and application thereof |
| CN110982578B (en) * | 2019-11-22 | 2021-08-10 | 南京钢铁股份有限公司 | Blast furnace blowing semi-coke additive and preparation and use method thereof |
| CN112645626B (en) * | 2020-12-16 | 2023-05-23 | 昆明理工大学 | Steel slag-based high-activity admixture and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1827221A (en) * | 2006-03-30 | 2006-09-06 | 武汉理工大学 | Sustained-release grinding aid for hard micro-powder |
| CN101665339A (en) * | 2009-09-10 | 2010-03-10 | 惠州市富力新技术有限公司 | Enhanced cement composite grinding aid |
| CN101708970A (en) * | 2009-05-26 | 2010-05-19 | 湖北统领科技有限公司 | Low-alkali composite multi-functional cement grinding aid and preparation method thereof |
-
2011
- 2011-10-25 CN CN 201110326892 patent/CN102503220B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1827221A (en) * | 2006-03-30 | 2006-09-06 | 武汉理工大学 | Sustained-release grinding aid for hard micro-powder |
| CN101708970A (en) * | 2009-05-26 | 2010-05-19 | 湖北统领科技有限公司 | Low-alkali composite multi-functional cement grinding aid and preparation method thereof |
| CN101665339A (en) * | 2009-09-10 | 2010-03-10 | 惠州市富力新技术有限公司 | Enhanced cement composite grinding aid |
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| CN102503220A (en) | 2012-06-20 |
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