CN103936315B - A kind of preparation method of modified active slag powders - Google Patents

A kind of preparation method of modified active slag powders Download PDF

Info

Publication number
CN103936315B
CN103936315B CN201410125375.0A CN201410125375A CN103936315B CN 103936315 B CN103936315 B CN 103936315B CN 201410125375 A CN201410125375 A CN 201410125375A CN 103936315 B CN103936315 B CN 103936315B
Authority
CN
China
Prior art keywords
slag powders
surface area
specific surface
preparation
slag
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.)
Active
Application number
CN201410125375.0A
Other languages
Chinese (zh)
Other versions
CN103936315A (en
Inventor
杨亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU RONGDA NEW MATERIAL CO Ltd
Original Assignee
JIANGSU RONGDA NEW MATERIAL CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JIANGSU RONGDA NEW MATERIAL CO Ltd filed Critical JIANGSU RONGDA NEW MATERIAL CO Ltd
Priority to CN201410125375.0A priority Critical patent/CN103936315B/en
Publication of CN103936315A publication Critical patent/CN103936315A/en
Application granted granted Critical
Publication of CN103936315B publication Critical patent/CN103936315B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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

Abstract

The invention discloses a kind of preparation method of modified active slag powders, its innovative point is: comprise the steps: in slag powders, add a small amount of steel-making slag powder, in the mixing solutions of water glass and sodium aluminate, soaks 12 days; Slag powders natural air drying after soaking, then dehydrated gypsum fully mixes, and then in shredder, grinds 50 ~ 80min, adds the steel ball that diameter is 50mm and 25mm in grinding machine for super; Select specific surface area and be greater than 460m 2the fine powder of/kg, specific surface area is less than 460m 2the meal of/kg returns continuation grinding; Select specific surface area and be greater than 460m 2the fine powder three-ring type roll mill of/kg carries out fine grinding, and obtaining specific surface area is 960 ~ 1200m 2/ kg, median size is 2 ~ 3.6 microns.It is simple that the present invention has preparation method, the advantage that cost is low, is applicable to engineer applied.

Description

A kind of preparation method of modified active slag powders
Technical field
The invention belongs to Industrial Solid Waste application technology as the second resource field, be specifically related to a kind of preparation method of modified active slag powders.
Background technology
Slag is the primary solids waste of ferrous metals industry, has higher lateral reactivity.At present, slag is except in order to except operating mine slag cement, and its levigate slag powders that is prepared into can also use as concrete admixture by people.Slag micropowder is as concrete admixture, not only cement consumption can be saved, reduce concrete cost (every side about reduces by 10 ~ 20 yuan), the submicroscopic(al) structure in concrete can be improved simultaneously, improve the boundary strength between coarse aggregate and mortar, the kapillary of fill concrete inside, increases concrete later strength, and concrete properties is fully improved.In the society of current develop rapidly, slag micropowder, as concrete Additive, has obtained the accreditation of personages of various circles of society.
Summary of the invention
The object of the invention is to for deficiency of the prior art, a kind of preparation method of modified active slag powders is provided, there is preparation method simple, the advantage that cost is low.
For solving the problems of the technologies described above, the present invention adopts following technical scheme to realize: a kind of preparation method of modified active slag powders, is characterized in that: comprise the steps:
(1) in slag powders, add a small amount of steel-making slag powder, in the mixing solutions of water glass and sodium aluminate, soak 12 days;
(2) slag powders natural air drying after soaking, then adds dehydrated gypsum, fully mixes;
(3) roughly grind: the slag powders of step (2) is ground 50 ~ 80min in shredder, in grinding machine for super, adds the steel ball that diameter is 50mm and 25mm;
(4) screen: select specific surface area and be greater than 460m 2the fine powder of/kg, specific surface area is less than 460m 2the meal of/kg returns continuation grinding;
(5) fine grinding: select specific surface area and be greater than 460m 2the fine powder three-ring type roll mill of/kg carries out fine grinding, and obtaining specific surface area is 960 ~ 1200m 2/ kg, median size is 2 ~ 3.6 microns.
Further, the mass percent of described slag powders and steel-making slag powder is 85 ~ 95%:5 ~ 15%.
Further, the mixing solutions mesosilicic acid sodium of described water glass and sodium aluminate and the mass percent of sodium aluminate are 60 ~ 90%:10 ~ 40%.
Further, following component is comprised by ratio of quality and the number of copies in described slag powders: SiO 231.72, CaO33.47, Al 2o 317.53, Fe 2o 30.45, MgO11.32.
Further, following component is comprised by ratio of quality and the number of copies in described slag powders: CaO38.91, MgO6.61, Fe 2o 315.11, Al 2o 31.57, SiO 213.32.
Beneficial effect of the present invention: add a small amount of steel-making slag powder in slag powders of the present invention, two step polishings are adopted after soaking in the mixing solutions of water glass and sodium aluminate, in slag powders, be mixed into dehydration before the milling add dehydrated gypsum, obtaining specific surface area after grinding is 960 ~ 1200m 2/ kg, median size is the slag powders of 2 ~ 3.6 microns.It is simple that the present invention has preparation method, the advantage that cost is low, is applicable to engineer applied.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is elaborated.
The raw material that the present invention adopts is slag powders and steel-making slag powder, wherein
Following component is comprised by ratio of quality and the number of copies: SiO in slag powders 231.72, CaO33.47, Al 2o 317.53, Fe 2o 30.45, MgO11.32.
Following component is comprised by ratio of quality and the number of copies: CaO38.91, MgO6.61, Fe in slag powders 2o 315.11, Al 2o 31.57, SiO 213.32.
Embodiment 1
A preparation method for modified active slag powders, is characterized in that: comprise the steps:
(1) in slag powders, add a small amount of steel-making slag powder, in the mixing solutions of water glass and sodium aluminate, soak 12 days, the mass percent of slag powders and steel-making slag powder is 85%:15%, and the mass percent of water glass and sodium aluminate is 60%:40%;
(2) slag powders natural air drying after soaking, then adds dehydrated gypsum, fully mixes;
(3) roughly grind: the slag powders of step (2) is ground 60min in shredder, in grinding machine for super, adds the steel ball that diameter is 50mm and 25mm;
(4) screen: select specific surface area and be greater than 460m 2the fine powder of/kg, specific surface area is less than 460m 2the meal of/kg returns continuation grinding;
(5) fine grinding: select specific surface area and be greater than 460m 2the fine powder three-ring type roll mill of/kg carries out fine grinding, and obtaining specific surface area is 960m 2/ kg, median size is 3.6 microns.
Embodiment 2
A preparation method for modified active slag powders, is characterized in that: comprise the steps:
(1) in slag powders, add a small amount of steel-making slag powder, in the mixing solutions of water glass and sodium aluminate, soak 12 days, the mass percent of slag powders and steel-making slag powder is 90%:10%, and the mass percent of water glass and sodium aluminate is 80%:20%;
(2) slag powders natural air drying after soaking, then adds dehydrated gypsum, fully mixes;
(3) roughly grind: the slag powders of step (2) is ground 80min in shredder, in grinding machine for super, adds the steel ball that diameter is 50mm and 25mm;
(4) screen: select specific surface area and be greater than 460m 2the fine powder of/kg, specific surface area is less than 460m 2the meal of/kg returns continuation grinding;
(5) fine grinding: select specific surface area and be greater than 460m 2the fine powder three-ring type roll mill of/kg carries out fine grinding, and obtaining specific surface area is 1120m 2/ kg, median size is 3.0 microns.
Embodiment 3
A preparation method for modified active slag powders, is characterized in that: comprise the steps:
(1) in slag powders, add a small amount of steel-making slag powder, in the mixing solutions of water glass and sodium aluminate, soak 12 days, the mass percent of slag powders and steel-making slag powder is 95%:5%, and the mass percent of water glass and sodium aluminate is 90%:10%;
(2) slag powders natural air drying after soaking, then adds dehydrated gypsum, fully mixes;
(3) roughly grind: the slag powders of step (2) is ground 60min in shredder, in grinding machine for super, adds the steel ball that diameter is 50mm and 25mm;
(4) screen: select specific surface area and be greater than 460m 2the fine powder of/kg, specific surface area is less than 460m 2the meal of/kg returns continuation grinding;
(5) fine grinding: select specific surface area and be greater than 460m 2the fine powder three-ring type roll mill of/kg carries out fine grinding, and obtaining specific surface area is 1200m 2/ kg, median size is 2 microns.
The performance index of the slag powders of embodiment 1 ~ 3 are in table 1.
The performance testing index of table 1 slag powders

Claims (5)

1. a preparation method for modified active slag powders, is characterized in that: comprise the steps:
(1) in slag powders, add a small amount of steel-making slag powder, in the mixing solutions of water glass and sodium aluminate, soak 12 days;
(2) slag powders natural air drying after soaking, then adds dehydrated gypsum, fully mixes;
(3) roughly grind: the slag powders of step (2) is ground 50 ~ 80min in shredder, in grinding machine for super, adds the steel ball that diameter is 50mm and 25mm;
(4) screen: select specific surface area and be greater than 460m 2the fine powder of/kg, specific surface area is less than 460m 2the meal of/kg returns continuation grinding;
(5) fine grinding: select specific surface area and be greater than 460m 2the fine powder three-ring type roll mill of/kg carries out fine grinding, and obtaining specific surface area is 960 ~ 1200m 2/ kg, median size is 2 ~ 3.6 microns.
2. the preparation method of a kind of modified active slag powders according to claim 1, is characterized in that: the mass percent of described slag powders and steel-making slag powder is 85 ~ 95%:5 ~ 15%.
3. the preparation method of a kind of modified active slag powders according to claim 1, is characterized in that: the mixing solutions mesosilicic acid sodium of described water glass and sodium aluminate and the mass percent of sodium aluminate are 60 ~ 90%:10 ~ 40%.
4. the preparation method of a kind of modified active slag powders according to claim 1, is characterized in that: comprise following component by ratio of quality and the number of copies in described slag powders: SiO 231.72, CaO33.47, Al 2o 317.53, Fe 2o 30.45, MgO11.32.
5. the preparation method of a kind of modified active slag powders according to claim 1, is characterized in that: comprise following component by ratio of quality and the number of copies in described slag powders: CaO38.91, MgO6.61, Fe 2o 315.11, Al 2o 31.57, SiO 213.32.
CN201410125375.0A 2014-03-31 2014-03-31 A kind of preparation method of modified active slag powders Active CN103936315B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410125375.0A CN103936315B (en) 2014-03-31 2014-03-31 A kind of preparation method of modified active slag powders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410125375.0A CN103936315B (en) 2014-03-31 2014-03-31 A kind of preparation method of modified active slag powders

Publications (2)

Publication Number Publication Date
CN103936315A CN103936315A (en) 2014-07-23
CN103936315B true CN103936315B (en) 2016-01-06

Family

ID=51184238

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410125375.0A Active CN103936315B (en) 2014-03-31 2014-03-31 A kind of preparation method of modified active slag powders

Country Status (1)

Country Link
CN (1) CN103936315B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105217975A (en) * 2015-09-18 2016-01-06 江苏融达新材料股份有限公司 The production method of a kind of vertical mill grinding ferronickel slag, slag composite powder
CN106747150A (en) * 2016-12-30 2017-05-31 重庆市富环建筑材料有限责任公司 The double-doped miberal powder of high intensity
CN112010617A (en) * 2020-08-31 2020-12-01 常州坚鹏建材有限公司 Durable stable steel slag-mineral powder concrete and preparation method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101041580A (en) * 2007-03-08 2007-09-26 武汉钢铁(集团)公司 Complex ore slag fine powder
CN101613190A (en) * 2009-07-22 2009-12-30 济南鲁新新型建材有限公司 Super-active slag powder and production method thereof
CN102557508A (en) * 2011-12-30 2012-07-11 重庆暄洁环保产业（集团）股份有限公司 Composite activating agent for calcium raw material-high-silicon-aluminum industrial residue system

Also Published As

Publication number Publication date
CN103936315A (en) 2014-07-23

Similar Documents

Publication Publication Date Title
CN110526628B (en) Preparation method of high-doping-amount wet-grinding phosphorus-solid waste super-retarding cementing material
CN102249568B (en) Low-alkali expansive moderate heat silicate cement and production method thereof
CN103159450B (en) Production method of foamed concrete block manufactured from steel slag
CN101182138A (en) Steel slag property optimized handling method
CN103382124B (en) A kind of molybdenum tailings air-entrained concrete building block and preparation method thereof
CN106396453B (en) A kind of modified granite powder as additive and preparation method thereof
CN103613303A (en) Modified limestone powder high-performance mineral admixture and preparation method thereof
CN103819125B (en) A kind of high-strength water-permeable brick additive and preparation method thereof
CN103693919A (en) Autoclaved aerated concrete blocks prepared from iron tailings and steel slags and preparation method thereof
CN103396158B (en) A kind of Antibacterial molybdenum tailings air-entrained concrete building block and preparation method thereof
CN107746198A (en) A kind of scrap glass powder composite blend and preparation method thereof
CN103833242A (en) Retarding composite limestone powder admixture
CN103936315B (en) A kind of preparation method of modified active slag powders
CN107473613B (en) A kind of cement and preparation method thereof using industrial solid-state castoff production
CN103170393B (en) Preparation method of superfine slag powder
CN105036667B (en) A kind of preparation method of antifreeze dry-mixed mortar
CN104449568A (en) High-yield energy-saving type slag grinding aid
CN103819104A (en) Slag and steel slag grinding-assisted activating agent
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
Zhou et al. Volcanic activity and thermal excitation of rich-silicon iron ore tailing in concrete
CN103819105B (en) A kind of environmental high-strength modification white cement and preparation method thereof
CN106587690A (en) Preparation method of high-performance concrete mineral admixture
CN103708765A (en) Regulator for polycarboxylate pumping agents
CN102838303A (en) Method for preparing cement by nickel-chromium residue

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant