CN105236801A - Good self-lubricating modified superfine slag micro-powder and preparation method thereof - Google Patents
Good self-lubricating modified superfine slag micro-powder and preparation method thereof Download PDFInfo
- Publication number
- CN105236801A CN105236801A CN201510582483.5A CN201510582483A CN105236801A CN 105236801 A CN105236801 A CN 105236801A CN 201510582483 A CN201510582483 A CN 201510582483A CN 105236801 A CN105236801 A CN 105236801A
- Authority
- CN
- China
- Prior art keywords
- slag
- powder
- micro
- surface area
- specific surface
- 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
Classifications
-
- 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
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
-
- 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
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to good self-lubricating modified superfine slag micro-powder, which is prepared from the following raw materials by weight: 950-960 parts of slag, 36-41 parts of expanded graphite powder, 0.3-0.5 part of triethanolamine, 0.1-0.3 part of triisopropanolamine, 0.2-0.4 part of sulfurized calcium alkyl phenolate, 0.5-0.8 part of nanometer polytetrafluoroethylene, 80-100 parts of desulfuration gypsum, 0.1-0.3 part of ricinoleic acid polyester, and 0.3-0.5 part of aluminum potassium sulfate. According to the present invention, the triethanolamine, the triisopropanolamine, the sulfurized calcium alkyl phenolate, the desulfuration gypsum, the ricinoleic acid polyester and the aluminum potassium sulfate are used, such that the residual charge on the micro-powder can be shielded, the Si-O bond cleavage in the slag can be promoted, and the aggregation of the micro-fine powder can be prevented; and the nanometer polytetrafluoroethylene and the expanded graphite powder are used, such that the surface energy is reduced, the particle agglomeration can be prevented, the dispersibility of the micro-powder can be improved, and the pressure resistance, the flexibility, the plasticity and the self-lubricating property of the concrete can be improved.
Description
Technical field
The present invention relates to slag micropowder preparation field, particularly relate to good modified superfine slag micropowder of a kind of self lubricity and preparation method thereof.
Background technology
At present, China's iron and steel output is at about 3.5 hundred million tons, and produce 1 ton of pig iron with domestic mean level (ML) and produce 0.50 ton of slag calculating, China's slag output is at about 1.75 hundred million tons.Therefore, how utilizing slag solid waste, is the problem that Chinese metallargist studies for many years always, is also to develop a circular economy, build a conservation-minded society and a realistic problem that friendly environment society should solve emphatically.Slag great majority use as cement mixture for a long time, with cement clinker intergrinding, the fineness of slag weighs general below 250m2/kg by specific surface area, this does not make its potential hydraulically active be not fully exerted, from the energy and resource view, can say that it is huge waste to a kind of precious resources that slag is used as the adulterant of conventional cement.(generally at more than 400m2/kg) after slag separate grinding to certain fineness, then be incorporated in cement and concrete, the workability of fresh concrete and the weather resistance of maturing can be improved significantly.But in order to obtain the breeze of larger fineness, often need the time that grinding is longer, and this can increase energy consumption.Meanwhile along with the prolongation of grinding time, material specific surface area increases gradually, and its specific surface area can also increase, and thus, subparticle is assembled mutually, the trend of conglomeration strengthens.Through after a period of time, the homeostasis process of " grinding reunion " can be in mill, reach so-called " the grinding limit ".In this state, even if extend grinding time again, material also difficult grinding obtains thinner, sometimes even makes particle thicker.This phenomenon is not obvious when common grinding, but often occurs in the middle of fine-grinding and superfine pulverizing.Adopt vertical grinder, control in 400 ~ 440m2/kg scope according to the specific surface area of national standard general S95 level slag micropowder.Horizontal ball mill slag micropowder specific surface area generally can only control at 350 ~ 370m2/kg.These slag micropowders, because three days activity indexs are generally lower than 65%, the weakness that early strength is obviously on the low side, its lateral reactivity is not in full use, and use properties is also subject to significant limitation.The specific surface area of fine powder can be improved at present by adding grinding aid, thus reach the object of energy efficient, reduction mechanical wear.Utilize ethylene glycol, trolamine and some inorganic salt as grinding aid, improve mill efficiency, reach energy efficient, reduce the object of mechanical wear, but or can not meet the needs of production, but also need the composition improving slag micropowder, improve the performance of cement.
Summary of the invention
The object of the present invention is to provide the good modified superfine slag micropowder of a kind of self lubricity, this slag micropowder can improve concrete resistance to pressure, snappiness, plasticity-and self lubricity.
Technical scheme of the present invention is as follows:
The good modified superfine slag micropowder of a kind of self lubricity, is characterized in that being made up of the raw material of following weight part: slag 950-960, expanded graphite powder 36-41, trolamine 0.3-0.5, tri-isopropanolamine 0.1-0.3, calcium sulfenyl phenolate 0.2-0.4, nanometer polytetrafluoroethylcomposite 0.5-0.8, desulfurated plaster 80-100, ricinolic acid polyester 0.1-0.3, potassium aluminium sulfate 0.3-0.5.
The production method of the good modified superfine slag micropowder of described self lubricity, is characterized in that:
(1) by expanded graphite powder, slag mixing, dry, make its water ratio lower than 1%, send into vertical ball mill, spray into trolamine, tri-isopropanolamine, calcium sulfenyl phenolate, being ground to specific surface area is 300-400m
2/ kg;
(2) desulfurated plaster, ricinolic acid polyester, potassium aluminium sulfate are mixed, spray in ball mill, continuing to be ground to specific surface area is 400-500m
2/ kg;
(3) by the slag powders that (2) step of getting 4-5 weight part obtains, mix with nanometer polytetrafluoroethylcomposite, spray in ball mill, continuing to be ground to specific surface area is 480-580m
2/ kg, to obtain final product.
Beneficial effect of the present invention
Slag micropowder of the present invention is by using trolamine, tri-isopropanolamine, calcium sulfenyl phenolate, desulfurated plaster, ricinolic acid polyester, potassium aluminium sulfate, the residual electric charge on maskable fine powder surface, promote the Si-O bond rupture in slag, prevent the coalescent of fine powder, thus reach the object of energy efficient, reduction mechanical wear; By using nanometer polytetrafluoroethylcomposite, expanded graphite powder, reducing surface energy, preventing particle agglomeration, the dispersiveness of micro mist can be improved, concrete resistance to pressure, snappiness, plasticity-and self lubricity can be improved.
Embodiment
The good modified superfine slag micropowder of a kind of self lubricity, is made up of the raw material of following weight part (kilogram): slag 955, expanded graphite powder 39, trolamine 0.4, tri-isopropanolamine 0.2, calcium sulfenyl phenolate 0.3, nanometer polytetrafluoroethylcomposite 0.6, desulfurated plaster 90, ricinolic acid polyester 0.2, potassium aluminium sulfate 0.4.
The production method of the good modified superfine slag micropowder of described self lubricity, is characterized in that:
(1) by expanded graphite powder, slag mixing, dry, make its water ratio lower than 1%, send into vertical ball mill, spray into trolamine, tri-isopropanolamine, calcium sulfenyl phenolate, being ground to specific surface area is 360m
2/ kg;
(2) desulfurated plaster, ricinolic acid polyester, potassium aluminium sulfate are mixed, spray in ball mill, continuing to be ground to specific surface area is 430m
2/ kg;
(3) by the slag powders that (2) step of getting 5 weight parts obtains, mix with nanometer polytetrafluoroethylcomposite, spray in ball mill, continuing to be ground to specific surface area is 540m
2/ kg, to obtain final product.
Experimental data: specific surface area 540m
2/ kg.
Activity index 3d91%; 7d103%; 28d116%
Degree of mobilization is than 105%
Above-mentioned modified superfine graining blast-furnace cinder micro-powder can be become 42.5 grades of Portland blast furnace slag cements in 70: 30 ratios and 42.5 grades of ordinary Portland cement compounds.3 days ultimate compression strength is 25.3MPa; 28 days ultimate compression strength is more than the specified value that is all up to state standards of 49.8MPa.
Claims (2)
1. the good modified superfine slag micropowder of self lubricity, is characterized in that being made up of the raw material of following weight part: slag 950-960, expanded graphite powder 36-41, trolamine 0.3-0.5, tri-isopropanolamine 0.1-0.3, calcium sulfenyl phenolate 0.2-0.4, nanometer polytetrafluoroethylcomposite 0.5-0.8, desulfurated plaster 80-100, ricinolic acid polyester 0.1-0.3, potassium aluminium sulfate 0.3-0.5.
2. the production method of the good modified superfine slag micropowder of self lubricity according to claim 1, is characterized in that:
(1) by expanded graphite powder, slag mixing, dry, make its water ratio lower than 1%, send into vertical ball mill, spray into trolamine, tri-isopropanolamine, calcium sulfenyl phenolate, being ground to specific surface area is 300-400m
2/ kg;
(2) desulfurated plaster, ricinolic acid polyester, potassium aluminium sulfate are mixed, spray in ball mill, continuing to be ground to specific surface area is 400-500m
2/ kg;
(3) by the slag powders that (2) step of getting 4-5 weight part obtains, mix with nanometer polytetrafluoroethylcomposite, spray in ball mill, continuing to be ground to specific surface area is 480-580m
2/ kg, to obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510582483.5A CN105236801A (en) | 2015-09-15 | 2015-09-15 | Good self-lubricating modified superfine slag micro-powder and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510582483.5A CN105236801A (en) | 2015-09-15 | 2015-09-15 | Good self-lubricating modified superfine slag micro-powder and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105236801A true CN105236801A (en) | 2016-01-13 |
Family
ID=55034685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510582483.5A Pending CN105236801A (en) | 2015-09-15 | 2015-09-15 | Good self-lubricating modified superfine slag micro-powder and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105236801A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10793759B2 (en) * | 2018-11-15 | 2020-10-06 | Yangtze University | Sulfur- and phosphorus-free extreme pressure lubricant and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 adulterant and its production method |
| CN1990413A (en) * | 2005-12-27 | 2007-07-04 | 尹小林 | Synthesis-reactivation technique for preparing inorganic coagulation material |
| CN101434458A (en) * | 2008-12-16 | 2009-05-20 | 上海海笠工贸有限公司 | Preparation of modified superfine graining blast-furnace cinder micro-powder and use thereof |
| CN101805142A (en) * | 2010-04-20 | 2010-08-18 | 上海大学 | Preparation method of modified S95-grade slag powder |
| CN104844058A (en) * | 2015-05-29 | 2015-08-19 | 湖州华仑助剂科技有限公司 | Modified cement grinding aid |
-
2015
- 2015-09-15 CN CN201510582483.5A patent/CN105236801A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 adulterant and its production method |
| CN1990413A (en) * | 2005-12-27 | 2007-07-04 | 尹小林 | Synthesis-reactivation technique for preparing inorganic coagulation material |
| CN101434458A (en) * | 2008-12-16 | 2009-05-20 | 上海海笠工贸有限公司 | Preparation of modified superfine graining blast-furnace cinder micro-powder and use thereof |
| CN101805142A (en) * | 2010-04-20 | 2010-08-18 | 上海大学 | Preparation method of modified S95-grade slag powder |
| CN104844058A (en) * | 2015-05-29 | 2015-08-19 | 湖州华仑助剂科技有限公司 | Modified cement grinding aid |
Non-Patent Citations (1)
| Title |
|---|
| 欧育湘主编: "《阻燃剂》", 30 September 2009, 国防工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10793759B2 (en) * | 2018-11-15 | 2020-10-06 | Yangtze University | Sulfur- and phosphorus-free extreme pressure lubricant and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107056112B (en) | A kind of high-activity mineral blending material and preparation method thereof | |
| CN109896788B (en) | Grouting material for building connecting piece prepared by wet grinding mode | |
| CN113372029B (en) | Low-carbon type super-sulfate cement, preparation method thereof and cement mortar | |
| CN110922073A (en) | Iron ore full-tailing curing agent for mine filling and application thereof | |
| CN105198243A (en) | Water-proof ultra-fine slag powder and preparation method thereof | |
| CN102618011B (en) | Slag grinding aid | |
| CN104449568B (en) | High-yield energy-saving type slag grinding aid | |
| CN114292081B (en) | Cement-free low-carbon concrete and preparation method thereof | |
| CN111205049B (en) | Masonry mortar prepared from iron tailing powder and slag micro powder | |
| CN109400061A (en) | A kind of high-titanium slag lightweight aggregate Reactive Powder Concrete and preparation method thereof | |
| CN112551985A (en) | Application of superfine tailings in concrete | |
| CN105174759A (en) | High-constructability modified superfine mineral slag micropowder and preparation method thereof | |
| CN105198244A (en) | Superfine slag powder capable of improving mixcapacity of concrete and preparation method thereof | |
| CN106431144B (en) | A kind of road concrete and preparation method thereof | |
| CN109534708B (en) | Preparation method of concrete admixture | |
| CN102849968A (en) | Method for preparing Portland cement clinker by using vanadium extraction tail-slag | |
| CN112374781B (en) | Steel slag modifier and preparation method and application thereof | |
| CN103232181A (en) | Preparation method of titanium dioxide slag concrete additive | |
| CN109336437A (en) | A kind of limestone micropowder-steel-making slag powder-composite blending material of slag powder and its preparation process | |
| CN105236813A (en) | Modified superfine slag micro-powder with effect of concrete wear resistance improving, and preparation method thereof | |
| CN103265259A (en) | Concrete composite admixture used for manufacturing high-speed railway sleeper and track plate | |
| CN105174757A (en) | Waterproof and cracking-resistant modified superfine slag powder and preparation method thereof | |
| CN105236801A (en) | Good self-lubricating modified superfine slag micro-powder and preparation method thereof | |
| CN107698185A (en) | A kind of concrete accelerator and preparation method thereof | |
| CN111233355A (en) | High-content phosphorus slag micro-powder cementing material and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20160113 |