CN105130216B - A kind of phosphorous slag micropowder preparation method for cement-based material - Google Patents
A kind of phosphorous slag micropowder preparation method for cement-based material Download PDFInfo
- Publication number
- CN105130216B CN105130216B CN201510509804.9A CN201510509804A CN105130216B CN 105130216 B CN105130216 B CN 105130216B CN 201510509804 A CN201510509804 A CN 201510509804A CN 105130216 B CN105130216 B CN 105130216B
- Authority
- CN
- China
- Prior art keywords
- cement
- based material
- slag
- phosphorus
- phosphorus 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
Links
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of phosphorous slag micropowder preparation method for cement-based material.One kind or two kinds of compatibilities in formic acid calcium, calcium hydroxide are as follows as function regulator, its preparation method：By yellow phosphorus electric furnace, caused melting phosphorus slag is directly discharged into the aqueous solution mixed with function regulator after progress water quenching immersion treatment in real time, is sent into electric drying machine drying, grinding, finished product are carried out subsequently into Vertical Mill equipment.Cause the component of cement-based material slow setting in calcium binding phosphorus slag in the function regulator aqueous solution, form slightly solubility sediment；The phosphorus slag particle surface being immersed in the function regulator aqueous solution uniformly adheres to upper calcium formate/calcium hydroxide, it will help excites the early hydration activity mixed with phosphoric slag cement sill.This method simplifies preparation technology relative to the conventional method such as activation modifier or activity excitant is added during mechanical grinding phosphorus slag, efficiently solves the problems such as slow setting and early strength mixed with phosphorus slag powder cement-based material be low.
Description
Technical field
The present invention relates to building material field, is exactly a kind of phosphorous slag micropowder preparation side for cement-based material
Method.
Background technology
Phosphorus slag is industry byproduct when electric furnace process prepares yellow phosphorus, in yellow phosphorus preparation process, is made using coke and silica
For reducing agent and slag forming agent, make the calcium and silica chemical combination in rock phosphate in powder, form the melting furnace using calcium silicates as main component
Slag, after it is discharged, through quenching granulating, as it is granulated electric furnace phosphoric slag, abbreviation phosphorus slag.Main chemical compositions are CaO and SiO2（About
Account for more than 80%）, while also contain a small amount of Al2O3、P2O5And CaF2Deng composition.Will be discharged by often producing 1 ton of yellow phosphorus by 8 ~ 10 tons
Phosphorus slag.At present, the discharge capacity of China's phosphorus slag is larger, and in terms of existing phosphorus production ability, the annual emissions of phosphorus slag reach 15,000,000
More than ton, and the provinces and regions such as Yunnan Province of China, Guizhou and Sichuan are largely focused on, utilization rate is not high, adds up heap so far and has high-volume reached
80000000 tons.If phosphorus slag arbitrarily discharge and air storage, do not only take up a large amount of soils, and the P in phosphorus slag2O5It is and other harmful
Element can permeate the ground under the shower of rainwater, cause soil pollution and underground water pollution.Therefore, the comprehensive utilization of phosphorus slag is to work as
Preceding social development urgent problem.
The cement concrete construction material maximum as dosage on our times, the consumption of industrial residue are cement with utilizing
And concrete industry realizes the only way of sustainable development, while also provide effective way for the improvement of ecological environment.Phosphorus
Slag has good latent hydraulicity, can improve cement concrete performance.Thus, current phosphorus slag of paying close attention to is in cement and concrete
Popularization and application, there is important society and economic implications.But the setting time of cement concrete extends, in early days after p-doped slag
The problems such as intensity decreases limits its extensive use in cement-based material.
At present, people it is more from mechanical grinding, chemi-excitation, mix the technological approaches such as other mineral admixtures again and asked to solve this
Topic.As Chinese invention patent application number CN201210484762.4 is disclosed " a kind of preparation method of phosphorus slag submicron powder ", use
Mechanical grinding improves its activity, but can not effectively eliminate P in phosphorus slag2O5To the adverse effect of cement concrete performance.Application number
CN02114132.0 discloses " phosphorous slag activation modifier ", from from calcium, magnesium, the oxide of barium, hydroxide, chloride,
One or more of compatibilities in nitrate, as precipitating reagent, add precipitating reagent in phosphorus slag, and the slow setting component in phosphorus slag is converted
Difficult insoluble precipitate turns into filler component, eliminates the slow setting of phosphorus slag, delays and pretend use.But the operation in actual application can be increased
Complexity, in addition the chloride in activation modifier may cause the steel bar corrosion of structural concrete.Application number
CN201210571526.6 discloses " a kind of modified phosphorous slag micro mist and its application ", CN201210207921.6 discloses " one kind
The manufacture method of compound phosphorus slag powder " and CN201310518173.8, which are disclosed, " a kind of phosphorus slag powder Active compound activator and its to be made
With method ", three patents have selected sulfate as exciting agent, but the material to cement concrete resisting erosion of sulfate not
Profit.Application number CN201510108287.4 discloses " a kind of preparation method of the compound phosphorus slag powder of high activity ", and the method is right first
It is granulated phosphorus slag and uses lime neutralization pretreatment 1 ~ 2 day, then compound silica-aluminum materialses and grinding aid, then mechanical grinding.But when long
Between lime neutralization pretreatment, can not only corrode the vitreum in phosphorus slag, reduce its potential gelling, and also increase preparation work
Skill, add financial cost.
The content of the invention
It is an object of the invention to solve problem of the prior art, there is provided a kind of preparation method of phosphorous slag micropowder.
Above-mentioned purpose is realized by following scheme：
A kind of phosphorous slag micropowder preparation method for cement-based material, it is characterised in that：Yellow phosphorus electric furnace is caused in real time
Melting phosphorus slag is directly discharged into the aqueous solution mixed with function regulator after progress water quenching immersion treatment, is sent into electric drying machine drying,
Grinding is carried out subsequently into Vertical Mill equipment, phosphorous slag micropowder is made.
A kind of described phosphorous slag micropowder preparation method for cement-based material, it is characterised in that：Described function point analysis
The agent aqueous solution is formed by one kind in calcium formate solution, aqua calcis or two kinds of compatibilities；The concentration control of calcium formate solution
1%~5%, the concentration control of aqua calcis is saturated solution.
A kind of described phosphorous slag micropowder preparation method for cement-based material, it is characterised in that：At the water quenching immersion
The soak time control of reason is controlled at 50 DEG C~95 DEG C in 0.5h~3.0h, soaking temperature.
A kind of described phosphorous slag micropowder preparation method for cement-based material, it is characterised in that：The phosphorus slag particle exists
Drying temperature scope control is at 300 DEG C~400 DEG C in electric dryer, and the moisture content of raw material is less than 1.0% after drying.
A kind of described phosphorous slag micropowder preparation method for cement-based material, it is characterised in that：The phosphorous slag micropowder of gained
Specific surface area be not less than 400m2/ kg, screen over-size are not more than 8%.
Beneficial effects of the present invention are：This method uses to be different from adds activation modifier during mechanical grinding phosphorus slag
Or the conventional method such as activity excitant is, directly by yellow phosphorus electric furnace, caused melting phosphorus slag is discharged into mixed with function regulator in real time
The aqueous solution in carry out water quenching immersion treatment, using causing cement base in the calcium binding phosphorus slag in the function regulator aqueous solution
The component of material slow setting, form slightly solubility sediment；The phosphorus slag particle surface being immersed in the function regulator aqueous solution is uniformly attached
Calcium formate/calcium hydroxide, it will help excite the early hydration activity mixed with phosphoric slag cement sill.Efficiently solve and mix
There are the slow setting of phosphorus slag powder cement-based material and the problems such as early strength is low, simplify preparation technology, improve phosphorous slag micropowder in water
Utilization rate in cement-based material.
Embodiment
Embodiment 1, by yellow phosphorus electric furnace, caused melting phosphorus slag is directly discharged into mixed with the aqueous solution for 3% calcium formate in real time
After carrying out water quenching immersion treatment 2h（Soaking temperature is 50 DEG C~95 DEG C）, electric drying machine drying is sent into, subsequently into Vertical Mill equipment
Grinding is carried out, it is 410m that specific surface area, which is made,2/ kg phosphorous slag micropowder, coagulates as mixing material or admixture to cement-based material
The time is tied without influence, the activity index of its 3 days and 28 days is respectively 80% and 93%.
Embodiment 2, by yellow phosphorus electric furnace, caused melting phosphorus slag is directly discharged into mixed with the saturation lime for 3% calcium formate in real time
After water quenching immersion treatment 2h being carried out in the aqueous solution（Soaking temperature is 50 DEG C~95 DEG C）, electric drying machine drying is sent into, subsequently into
Vertical Mill equipment carries out grinding, and it is 410m that specific surface area, which is made,2/ kg phosphorous slag micropowder, as mixing material or admixture to cement
Sill setting time, the activity index of its 3 days and 28 days was respectively 83% and 95% without influence.
Claims (3)
- A kind of 1. phosphorous slag micropowder preparation method for cement-based material, it is characterised in that：Yellow phosphorus electric furnace is caused in real time molten Melt phosphorus slag to be directly discharged into the aqueous solution mixed with function regulator after progress water quenching immersion treatment, be sent into electric drying machine drying, so Enter Vertical Mill equipment afterwards and carry out grinding, phosphorous slag micropowder is made；The described function regulator aqueous solution be calcium formate solution either by calcium formate solution and aqua calcis compatibility and Into；1%~5%, the concentration control of aqua calcis is saturated solution for the concentration control of calcium formate solution；The soak time control of the water quenching immersion treatment is controlled at 50 DEG C~95 DEG C in 0.5h~3.0h, soaking temperature.
- A kind of 2. phosphorous slag micropowder preparation method for cement-based material according to claim 1, it is characterised in that：It is described Drying temperature scope control is at 300 DEG C~400 DEG C in electric dryer for phosphorus slag particle, and the moisture content of raw material is less than after drying 1.0%。
- A kind of 3. phosphorous slag micropowder preparation method for cement-based material according to claim 1, it is characterised in that：Gained The specific surface area of phosphorous slag micropowder be not less than 400m2/ kg, screen over-size are not more than 8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510509804.9A CN105130216B (en) | 2015-08-19 | 2015-08-19 | A kind of phosphorous slag micropowder preparation method for cement-based material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510509804.9A CN105130216B (en) | 2015-08-19 | 2015-08-19 | A kind of phosphorous slag micropowder preparation method for cement-based material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105130216A CN105130216A (en) | 2015-12-09 |
| CN105130216B true CN105130216B (en) | 2018-03-30 |
Family
ID=54715865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510509804.9A Active CN105130216B (en) | 2015-08-19 | 2015-08-19 | A kind of phosphorous slag micropowder preparation method for cement-based material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105130216B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113929320A (en) * | 2021-11-18 | 2022-01-14 | 中国水利水电第七工程局有限公司 | High-early-stage active phosphorus slag powder and preparation method thereof |
| CN114276083B (en) * | 2021-12-25 | 2023-03-21 | 郴州中祁工程材料有限公司 | Environment-friendly concrete containing waste phosphorus slag and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1634787A (en) * | 2003-12-30 | 2005-07-06 | 杨锦耀 | Method for preparing high reactive slag from blast furnace slag |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1209202C (en) * | 2002-05-16 | 2005-07-06 | 尹小林 | Phosphorous slag activation modifier |
| CN102167558B (en) * | 2011-01-05 | 2012-12-05 | 同济大学 | Excitant for exciting activity of industrial waste residues of phosphorite ore as well as preparation method and application thereof |
| CN103553402B (en) * | 2013-10-29 | 2015-10-28 | 同济大学 | A kind of phosphorus slag powder Active compound activator and using method thereof |
| CN103833257B (en) * | 2014-03-26 | 2015-12-30 | 山东宏艺科技股份有限公司 | A kind of short solidifying enhanced cement grinding aid |
| CN104402345B (en) * | 2014-11-28 | 2016-07-06 | 中建商品混凝土成都有限公司 | A kind of big micro-swollen high-strength grout of fluidised form |
-
2015
- 2015-08-19 CN CN201510509804.9A patent/CN105130216B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1634787A (en) * | 2003-12-30 | 2005-07-06 | 杨锦耀 | Method for preparing high reactive slag from blast furnace slag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105130216A (en) | 2015-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105565691B (en) | A kind of lead-zinc smelting slag-based geopolymer binder materials and preparation method thereof | |
| CN104193202B (en) | A kind of high-moisture-retention cement | |
| CN101519285B (en) | Composite powder excitant of steel slag powder, granulated blast furnace slag powder and steel scruff, preparation and application of the composite powder excitant | |
| CN100545115C (en) | Utilize steel slag tailing slurry slag cement of steel slag ball-milling tail mud production and preparation method thereof | |
| CN101717837B (en) | Chemical activation liquid of converter slag and application method thereof | |
| CN102167558B (en) | Excitant for exciting activity of industrial waste residues of phosphorite ore as well as preparation method and application thereof | |
| CN111302708B (en) | Comprehensive utilization technology of large-volume lithium slag waste and implementation method thereof | |
| CN112661433B (en) | Low-activity converter hot splashing steel slag gelling activity excitant and preparation method thereof | |
| CN106396592B (en) | A kind of preparation method of the mine cemented filling material of resource utilization hazardous waste containing cadmium | |
| CN105399349B (en) | A kind of high activity steel ground-slag and preparation method thereof | |
| CN104909677A (en) | Silicon-aluminum-based tailings cementing agent for mine filling, and preparation method thereof | |
| CN104496246A (en) | Cement concrete building solid phase filler surfactant and manufacturing and use methods thereof | |
| CN106587695A (en) | Method for preparing cement mixture from waste phosphorus dregs through wet-milling method | |
| CN107056115A (en) | A kind of rush for ardealite based cementitious material coagulates type early strength agent and preparation method thereof | |
| CN103086618A (en) | Construction waste micro-powder solidifying agent for solidifying soil mass | |
| CN106348713A (en) | Cementing filling material for co-processing copper-containing dangerous waste of mine and preparation method of cementing filling material | |
| CN113929382A (en) | Full-solid waste aggregate ultrahigh-strength concrete and preparation method thereof | |
| CN112110661A (en) | Preparation method of phosphogypsum slag-based cement | |
| JP5171493B2 (en) | Method for producing solid steelmaking slag | |
| CN105130216B (en) | A kind of phosphorous slag micropowder preparation method for cement-based material | |
| CN109095877B (en) | Soil body curing agent, preparation method thereof and soil curing method | |
| CN101497515B (en) | Method for producing titanium slag wall material brick making | |
| CN100368333C (en) | Compound cement grinding aid and its production method | |
| CN106431027A (en) | Mining cemented filling for co-treating nickel-containing dangerous wastes, and preparation method of cemented filling | |
| CN107117845B (en) | Method for inhibiting alkali silicic acid reaction of concrete |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |