CN1260330A - 利用炼镁废渣生产复合及砌筑水泥的工艺 - Google Patents

利用炼镁废渣生产复合及砌筑水泥的工艺 Download PDF

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CN1260330A
CN1260330A CN00101520A CN00101520A CN1260330A CN 1260330 A CN1260330 A CN 1260330A CN 00101520 A CN00101520 A CN 00101520A CN 00101520 A CN00101520 A CN 00101520A CN 1260330 A CN1260330 A CN 1260330A
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cement
magnesium
gypsum
product
slags
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CN100462321C (zh
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仝宗元
张富
张大同
刘永明
郭强
韩全恒
胡宝玉
杨文官
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GUANGLING CHEMICAL INDUSTRY CORP SHANXI PROVINCE
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GUANGLING CHEMICAL INDUSTRY CORP SHANXI PROVINCE
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    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

利用炼镁废渣生产复合及砌筑水泥的工艺属建材生产技术,以对高温炼镁废渣进行水淬降温至摄氏500度以下、自然冷却干燥2—3天,控制烧失量低于5%的处理工艺,使其对水泥的有害成分降低、活性明显提高,可被用作水泥混合材,以较大掺入比例成功地实现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。同时提供一种利用炼镁废渣、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

利用炼镁废渣生产复合及砌筑水泥的工艺
本发明属建材生产技术，主要涉及以镁渣作为水泥混合材的生产工艺。
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。
本发明的目的是提出利用炼镁废渣生产水泥的工艺方案。
本发明的目的是这样实现的，利用炼镁废渣生产复合及砌筑水泥的工艺包括：按煅烧熟料要求对原料进行配料并进入生料磨粉磨，然后成球，经煅烧得熟料，熟料与其他混合材均经破碎后，再与作为混合材的镁渣分别入单料储存仓，按水泥产品要求配料，经水泥磨粉磨后入水泥储存及均化库，即得成品。其中配料中所用炼镁废渣是在摄氏900度以上经水淬处理后，降温至摄氏500度以下，自然冷却干燥2-3天，控制烧失量低于5％，然后进入单料储存仓待用。这样，水淬会使炼镁废渣产生有利于提高其活性的变化，和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，使本发明目的得以实现。
本发明所述水泥的配方(质量％)：
当产品为复合水泥时：石膏3±0.5 沸石6±1 镁渣37±3 硅酸盐水泥熟料54±3；
当产品为砌筑水泥时：石膏3±0.5 沸石8±1 镁渣45±3 硅酸盐水泥熟料44±3；
本发明所述煅烧水泥熟料的配方(质量％)：石膏1.3±0.2 镁渣20±1 石灰石54±2 黏土12±1 铁矿石3±0.2 无烟煤8±1 萤石1±0.1。以上是利用炼镁废渣生产水泥的几种有关的配料方案
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，降低了对水泥的有害成分、明显提高活性，作为水泥混合材加以利用，以较大掺入比例成功地实现利用镁渣生产有关水泥产品，并可显著降低水泥生产成本、节约能源。同时提供一种利用炼镁废渣、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。
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MgO含量在6-10％之间，在废渣出炉时即以水喷淋使之在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，烧失量在5％以下时，收入单料储存仓作为水泥混合材待用。本例产品为425#复合水泥时的配方(质量％)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。
第二实施例与上例一致，只是产品为砌筑水泥的配方(质量％)：石膏3.5沸石9镁渣44 525#硅酸盐水泥熟料43.5。其水泥粉磨细度为过0.08mm筛余物8.7％，经检验其28天抗压强度为39.4Mpa抗折强度.为6.5Mpa。
第三实施例仍与上例一致，产品改为煅烧水泥熟料的配方(质量％)是：石膏1.3 镁渣21.1 石灰石54.7 黏土11.3 铁矿石3.2 无烟煤7.3 萤石1.1。经检验其28天抗压强度为61.4Mpa 抗折强度为7.8Mpa。

Claims (2)

1.利用炼镁废渣生产复合及砌筑水泥的工艺包括，按煅烧熟料要求对原料进行配料并进入生料磨粉磨，然后成球，经煅烧得熟料，熟料与其他混合材均经破碎后，再与作为混合材的镁渣分别入单料储存仓，按水泥产品要求配料，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：配料中所用炼镁废渣是在摄氏900度以上经水淬处理后，降温至摄氏500度以下，自然冷却干燥2-3天，控制烧失量低于5％，然后进入单料储存仓待用。
2.如权利要求1所述工艺，其特征在于：
所述水泥的配方(质量％)：
当产品为复合水泥时：石膏3±0.5 沸石6±1 镁渣37±3 硅酸盐水泥熟料54±3；
当产品为砌筑水泥时：石膏3±0.5 沸石8±1 镁渣45±3 硅酸盐水泥熟料44±3；
所述煅烧水泥熟料配方(质量％)：石膏1.3±0.2 镁渣20±1 石灰石54±2 黏土12±1 铁矿石3±0.2 无烟煤8±1 萤石1±0.1。
CNB001015206A 2000-01-08 2000-01-08 利用炼镁废渣生产复合水泥的工艺 Expired - Fee Related CN100462321C (zh)

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Cited By (6)

* Cited by examiner, † Cited by third party
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
CN104370482A (zh) * 2014-10-22 2015-02-25 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
CN104671679A (zh) * 2015-01-09 2015-06-03 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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
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
WO1999032838A1 (en) * 1997-12-23 1999-07-01 Intellidyne, Llc Apparatus for regulating length of compressor cycles

Cited By (6)

* Cited by examiner, † Cited by third party
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
CN104370482A (zh) * 2014-10-22 2015-02-25 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
CN104671679A (zh) * 2015-01-09 2015-06-03 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

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