CN100462321C - 利用炼镁废渣生产复合水泥的工艺 - Google Patents
利用炼镁废渣生产复合水泥的工艺 Download PDFInfo
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- CN100462321C CN100462321C CNB001015206A CN00101520A CN100462321C CN 100462321 C CN100462321 C CN 100462321C CN B001015206 A CNB001015206 A CN B001015206A CN 00101520 A CN00101520 A CN 00101520A CN 100462321 C CN100462321 C CN 100462321C
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- 239000004568 cement Substances 0.000 title claims abstract description 33
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 18
- 239000011777 magnesium Substances 0.000 title claims abstract description 18
- 239000002699 waste material Substances 0.000 title claims abstract description 13
- 238000003723 Smelting Methods 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title abstract description 6
- 238000000034 method Methods 0.000 title description 2
- 150000001875 compounds Chemical class 0.000 title 1
- 239000002893 slag Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000010791 quenching Methods 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 238000000227 grinding Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000006062 fragmentation reaction Methods 0.000 claims description 5
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 238000013467 fragmentation Methods 0.000 claims description 3
- 239000010440 gypsum Substances 0.000 claims description 3
- 229910052602 gypsum Inorganic materials 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 2
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000009931 harmful effect Effects 0.000 abstract description 2
- 238000007670 refining Methods 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
- C04B18/144—Slags from the production of specific metals other than iron or of specific alloys, e.g. ferrochrome slags
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
- C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
- C04B7/21—Mixtures thereof with other inorganic cementitious materials or other activators with calcium sulfate containing activators
-
- 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
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
利用炼镁废渣生产复合水泥的工艺属建材生产技术，以对烧失重量低于5%、摄氏900度以上的高温炼镁废渣进行水淬，使其降温至摄氏500度以下、自然冷却干燥2-3天的处理工艺，使其对水泥的有害影响降低、活性明显提高，可被用作水泥混合材。粉磨水泥配料的配方(重量份数)是：石膏3±0.5，沸石6±1，镁渣37±3，硅酸盐水泥熟料54±3。本发明实现了以较大掺入比例利用镁渣生产有关水泥产品，并显著降低水泥生产成本、节约能源。提供了一种利用炼镁废渣、减少污染、保护环境、解除炼镁工业后顾之忧、使镁业走上快速发展之路的有效途径。
Description
技术领域
本发明属建材生产技术，主要涉及以镁渣作为水泥混合材，生产复合水泥的工艺。
背景技术
对于利用镁渣作为水泥混合材已见报导，为镁渣的利用和水泥生产开辟了新的途径，引起广泛关注。但较为成熟的生产工艺尚待确定，产品的质量亦欠稳定。
发明内容
本发明要解决的技术问题是提出利用炼镁废渣生产复合水泥的工艺方案。
本发明技术方案的内容是，利用炼镁废渣生产复合水泥的工艺方案包括如下具体流程，
第一步，进行煅烧熟料的原料配料，使所配原料进入生料磨粉磨混合，然后成球，经煅烧得熟料，在破碎之后进入单料储存仓待用；
第二步，将各种水泥混合材破碎，然后进入单料储存仓待用；
第三步，从各单料仓取料进行粉磨配料，经水泥磨粉磨后入水泥储存及均化库，即得成品。
其中，所述水泥粉磨配料中出炉镁渣的烧失重量应低于5％，并在摄氏900度以上经水淬处理降温至摄氏500度以下，自然冷却干燥2-3天，然后进入单料储存仓作混合材待用。这样，水淬会使炼镁废渣产生有利于提高其活性的变化，并消解渣中对水泥安定性有害的游离成分，使水泥产品性能稳定；从而解决了本发明所提出的技术问题。
本发明所述第三步中粉磨水泥配料的配方(重量份数)：石膏3±0.5，沸石6±1，镁渣37±3，硅酸盐水泥熟料54±3。
本发明对已成为污染源、制约炼镁工业发展的炼镁废渣进行水淬处理后，明显提高镁渣的活性，降低了掺入镁渣对水泥的有害影响，使其可以作为一种水泥混合材加以利用；实现了以较大掺入比例利用镁渣生产有关水泥产品，显著降低水泥生产成本、节约能源。提供了一种利用炼镁废渣、减少污染、保护环境、解除炼镁工业后顾之忧、使镁业走上快速发展之路的有效途径。
具体实施方式
下面结合实施例对本发明作进一步说明。
第一实施例所用炼镁厂排出的废渣，其烧失重量在5％以下，MgO重量含量在6-10％之间，在废渣出炉时即进行水淬，并使之在3-5分钟内迅速降至摄氏500度以下，经2-3天自然冷却干燥之后，收入单料储存仓作为水泥混合材待用。本例产品为425#复合水泥，具体的配方(重量％)是：石膏3.5，沸石7，镁渣36.5，525#硅酸盐水泥熟料53。其水泥粉磨细度为过0.08mm筛余物6.8％，经检验其28天抗压强度为47.4Mpa，抗折强度.为7.1Mpa。
Claims (2)
1.利用炼镁废渣生产复合水泥的工艺包括如下具体流程，
第一步，进行煅烧熟料的原料配料，使所配原料进入生料磨粉磨混合，然后成球，经煅烧得熟料，再经破碎之后进入单料储存仓待用；
第二步，将各种水泥混合材破碎，然后进入单料储存仓待用；
第三步，从各单料仓取料进行粉磨配料，经水泥磨粉磨后入水泥储存及均化库，即得成品；
其特征在于：所用炼镁废渣的烧失重量应低于5％，并在摄氏900度以上经水淬处理，降温至摄氏500度以下，自然冷却干燥2-3天，破碎后进入单料储存仓待用。
2.如权利要求1所述利用炼镁废渣生产复合水泥的工艺，其特征在于：所述第三步中粉磨水泥配料的配方(重量份数)是：石膏3±0.5，沸石6±1，镁渣37±3，硅酸盐水泥熟料54±3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001015206A CN100462321C (zh) | 2000-01-08 | 2000-01-08 | 利用炼镁废渣生产复合水泥的工艺 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001015206A CN100462321C (zh) | 2000-01-08 | 2000-01-08 | 利用炼镁废渣生产复合水泥的工艺 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200510074527XA Division CN1715232A (zh) | 2000-01-08 | 2000-01-08 | 利用炼镁废渣生产水泥熟料的方法 |
| CNA2005100745284A Division CN1702051A (zh) | 2000-01-08 | 2000-01-08 | 利用炼镁废渣生产砌筑水泥的方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1260330A CN1260330A (zh) | 2000-07-19 |
| CN100462321C true CN100462321C (zh) | 2009-02-18 |
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| CNB001015206A Expired - Fee Related CN100462321C (zh) | 2000-01-08 | 2000-01-08 | 利用炼镁废渣生产复合水泥的工艺 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6709509B2 (en) * | 2001-06-05 | 2004-03-23 | Ernest John Taylor-Smith | Portland cement manufacture from slag from the production of magnesium metal |
| CN101367626B (zh) * | 2008-09-26 | 2011-06-29 | 仝仲盛 | 一种白硅酸盐水泥 |
| CN104370482B (zh) * | 2014-10-22 | 2016-07-27 | 中北大学 | 一种高性能镁渣的制备方法 |
| CN104649597A (zh) * | 2015-01-09 | 2015-05-27 | 巢湖云海镁业有限公司 | 一种用于水泥的镁渣处理方法 |
| CN104671679B (zh) * | 2015-01-09 | 2016-09-07 | 巢湖云海镁业有限公司 | 一种镁渣的处理方法 |
| CN105036637A (zh) * | 2015-07-08 | 2015-11-11 | 宁夏盛远新型建材有限责任公司 | 复合矿物掺合料制备工艺及设备 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072161A (zh) * | 1992-07-07 | 1993-05-19 | 山西省建筑科学研究所 | 增钙(镁)渣灰建筑制品生产方法 |
| CN1286747A (zh) * | 1997-12-23 | 2001-03-07 | 因特利达因公司 | 调整压缩机循环长度的设备 |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072161A (zh) * | 1992-07-07 | 1993-05-19 | 山西省建筑科学研究所 | 增钙(镁)渣灰建筑制品生产方法 |
| CN1286747A (zh) * | 1997-12-23 | 2001-03-07 | 因特利达因公司 | 调整压缩机循环长度的设备 |
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| CN1260330A (zh) | 2000-07-19 |
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