CN1264774C - Concrete mineral admixture-phosphorous slag micropowder and its production method - Google Patents
Concrete mineral admixture-phosphorous slag micropowder and its production method Download PDFInfo
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- CN1264774C CN1264774C CN 200410040828 CN200410040828A CN1264774C CN 1264774 C CN1264774 C CN 1264774C CN 200410040828 CN200410040828 CN 200410040828 CN 200410040828 A CN200410040828 A CN 200410040828A CN 1264774 C CN1264774 C CN 1264774C
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- phosphorous slag
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- miropowder
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Abstract
The present invention discloses a mineral concrete additive and a production method thereof, which relates to a method for producing the mineral concrete additive (phosphorous slag miropowder) by the yellow phosphorus waste slag of an electric furnace. The phosphorous slag miropowder is fine powder of which the particle diameter is not larger than 80 mum and the specific surface area is from 300 to 600m<2>/kg, the fine powder has activity, and phosphorous slag is used as a raw material. The method for producing the phosphorous slag miropowder has the following steps: the phosphorous slag is firstly dried till a water content is lower than 1% and is then sieved, coarse particles of which the particle diameters are larger than 5mm are sieved out, and fine particles of which the particle diameters are smaller than 5mm are used as raw materials. Ferrous impurities are removed by magnetic separation, the fine particles are sent to a fine grinding mill, divided into 3 to 4 grades, and ground into the fine powder of which the particle diameter is smaller than 80 mum, an active additive is added according to a predetermined proportion, simultaneous milling is carried out, and a miropowder finished product confirming to requirements is finally made. The phosphorous slag miropowder can be used for obviously ameliorating and improving concrete performance, and the phosphorous slag miropowder is a necessary mixing material for producing concrete with high strength and high performance. The method searches a new way for the utilization of the phosphorous slag and is helpful for environmental amelioration.
Description
Technical field
The present invention relates to concrete admixture, in particular to the method for producing concrete admixture with the electric furnace yellow phosphorus waste slag.
Background technology
Concrete is often referred to cement concrete.Cement concrete admixture be in the concrete whipping process, add, in order to improve the material of concrete character.Domesticly in recent years obtaining some progress aspect the research of concrete admixture, new admixture constantly comes out, for example please part in Chinese patent No. 98102117.4 " high performance additive for concrete ", Chinese patent application part No. 97115862.2 " super fine additive for cement concrete ", the Chinese patent No. 99112172.4 " composite additive for concrete ", Chinese patent application part 02113779.X number " high-effective concrete compound additive and production method thereof " etc.Admixture has the advantage of tool self on these coagulations, if but industrial residue is used as concrete admixture, will produce better economic benefit and environmental benefit.
Waste residue (abbreviation phosphorus slag) amount that producing yellow Phosphorus by electric oven produces is very big, and the existing certain methods of the recycling of yellow phosphorus waste slag is at present for example produced cement, paved the way etc. with it.But still be difficult the report that phosphorus slag is produced the concrete mineral admixture up to now.
Summary of the invention
The object of the present invention is to provide a kind of novel concrete mineral admixture---phosphorous slag micropowder.
The object of the present invention is to provide the concrete mineral admixture is the production method of phosphorous slag micropowder.
The concrete mineral admixture phosphorous slag micropowder that the contriver provides is to be that particle diameter≤80 μ m, the specific surface area that raw material is made is 300～600m with the phosphorus slag
2/ kg has an active trickle powder.
The production method of phosphorous slag micropowder is as follows: phosphorus slag is dried after moisture content is lower than 1% sieve earlier, the above coarse grain of sieve degranulation footpath 5mm, getting the particulate that particle diameter is lower than 5mm is raw material, remove ferrous contaminants through magnetic separation, send into then in the Super-fine grinder, divide 3～4 grades and wear into the fine powder that particle diameter is lower than 80 μ m, check its activity, add the active additive be no more than phosphorus slag amount 30% again and make its activation, simultaneously levigate, make particle diameter≤80 μ m at last, specific surface area is 300～600m
2The micro mist finished product of/kg dispatches from the factory through check, weighing, packing, and this finished product is the concrete mineral admixture.
The additional proportion of active additive determines that through different additive kind and concrete test add-on is no more than phosphorus slag amount 30% in advance.
In order to guarantee that phosphorus slag has stable activity, often adopt to add active additive activatory method, active additive commonly used has gypsum, limestone, volcanic ash, tuff, quartzite, sandstone, conglomerate, flint, diatomite, dolomite, muddy limestone, sodium sulfate salt or sylvite, sodium carbonate salt or sylvite etc.
Concrete mineral admixture phosphorous slag micropowder of the present invention is applied to concrete, can significantly improve indexs such as concrete workability, mechanical property, weather resistance and volume stability, be to produce the adulterant high-strength, that high performance concrete is indispensable, be listed in concrete the 6th admixture together with flyash, blast-furnace cinder micro-powder.Phosphorous slag micropowder not only can improve concrete performance, and with low cost.
The production method of concrete mineral admixture phosphorous slag micropowder of the present invention is that the utilization of the waste residue of electric furnace process yellow phosphorus searches out a new approach, turns harm into good, and helps improving environment.
Embodiment
The waste residue that embodiment gets Guiyang Guohua Tiancheng Phosphorus Industry Corporation's phosphorus production is that phosphorus slag is a raw material.Earlier phosphorus slag is Tumblied Dry and after moisture content is lower than 1%, sieve, sifting out the above coarse grain of particle diameter 5mm discards, get the particulate that particle diameter is lower than 5mm, remove iron compounds such as ferrophosphorus through magnetic separation, hopper in the middle of sending into then, thin phosphorus slag is sent in the Super-fine grinder that specification is φ 2.2 * 11m by automatic feeder equably by the delivery rate of 8t/h again, divide 4 grades and wear into the fine powder that particle diameter is lower than 80 μ m, the active additive gypsum that adds phosphorus slag amount 5% simultaneously, carry out abrasive dust and screening together, milling capacity is 8～12t/h, and particle diameter≤80 μ m are made in fine grinding step by step at last, specific surface area is 300～600m
2The micro mist finished product of/kg is sent into the product storage bunker, dispatches from the factory through check, weighing, packing.The industrial scale of this device is 60kt/a.
Claims (3)
1 one kinds of concrete mineral admixtures---phosphorous slag micropowder is characterized in that it is is raw material with the phosphorus slag, also adds the active additive that is no more than phosphorus slag amount 30% through iron removal by magnetic separation, and wearing into particle diameter≤80 μ m and specific surface area then is 300～600m
2The micro mist of/kg.
2 production methods according to the described phosphorous slag micropowder of claim 1, it is characterized in that: phosphorus slag is dried after moisture content is lower than 1% sieve earlier, the above coarse grain of sieve degranulation footpath 5mm, getting the particulate that particle diameter is lower than 5mm is raw material, removes ferrous contaminants through magnetic separation, sends into then in the Super-fine grinder, divide 3 or 4 grades and wear into the fine powder that particle diameter is lower than 80 μ m, add the active additive that is no more than phosphorus slag amount 30% again, simultaneously levigate, making particle diameter≤80 μ m and specific surface area at last is 300～600m
2The micro mist finished product of/kg.
3 production methods according to the described phosphorous slag micropowder of claim 2 is characterized in that preparing that used active additive is gypsum or limestone or volcanic ash or tuff or quartzite or sandstone or conglomerate or flint or diatomite or dolomite or muddy limestone or sodium sulfate or vitriolate of tartar or yellow soda ash or salt of wormwood in this concrete mineral admixture phosphorous slag micropowder process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040828 CN1264774C (en) | 2004-10-09 | 2004-10-09 | Concrete mineral admixture-phosphorous slag micropowder and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040828 CN1264774C (en) | 2004-10-09 | 2004-10-09 | Concrete mineral admixture-phosphorous slag micropowder and its production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1603274A CN1603274A (en) | 2005-04-06 |
| CN1264774C true CN1264774C (en) | 2006-07-19 |
Family
ID=34664798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410040828 Expired - Fee Related CN1264774C (en) | 2004-10-09 | 2004-10-09 | Concrete mineral admixture-phosphorous slag micropowder and its production method |
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| CN (1) | CN1264774C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768290B (en) * | 2010-01-25 | 2011-12-07 | 西南科技大学 | Modified phosphorous slag used as plastic filler and preparation method thereof |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805138A (en) * | 2010-03-16 | 2010-08-18 | 云南省建筑科学研究院 | Concrete mineral admixture |
| CN103043933A (en) * | 2012-12-26 | 2013-04-17 | 贵州省建筑材料科学研究设计院 | Modified phosphorus slag micropowder and application thereof |
| CN103864335B (en) * | 2014-01-25 | 2015-08-19 | 陈军 | A kind of take diatomite as the preparation method of the adulterant of main raw material |
| CN104591590B (en) * | 2014-01-25 | 2016-08-24 | 广州市宏翰混凝土有限公司 | A kind of preparation method of the concrete admixture with diatomite as primary raw material |
| CN106316194A (en) * | 2016-08-22 | 2017-01-11 | 桂林新艺制冷设备有限责任公司 | High-efficiency concrete modifier and concrete thereof |
| CN111072363A (en) * | 2020-02-17 | 2020-04-28 | 许智勇 | Concrete waste and preparation method thereof |
-
2004
- 2004-10-09 CN CN 200410040828 patent/CN1264774C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768290B (en) * | 2010-01-25 | 2011-12-07 | 西南科技大学 | Modified phosphorous slag used as plastic filler and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN1603274A (en) | 2005-04-06 |
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