CN111004021A - 一种镁尖晶石抗结皮浇注料 - Google Patents

一种镁尖晶石抗结皮浇注料 Download PDF

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CN111004021A
CN111004021A CN201911081494.XA CN201911081494A CN111004021A CN 111004021 A CN111004021 A CN 111004021A CN 201911081494 A CN201911081494 A CN 201911081494A CN 111004021 A CN111004021 A CN 111004021A
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朱国平
王立旺
王琪
李新明
朱其良
向若飞
彭晶晶
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Zhejiang Kingcred New Material Co ltd
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Abstract

本发明涉及一种镁尖晶石抗结皮浇注料，包括以下各组分及重量份：黑刚玉50～75份、镁铝尖晶石10～15份、钛酸铝10～20份、轻烧氧化镁粉6～20份、氧化铝粉4～8份、尖晶石水泥4～7份、硅微粉2～5份、玻璃粉1～3份、减水剂0.10～0.15份、防爆纤维0.01～0.02份。本发明通过采用上述配方，具有较好的高温性能和抗热震性，抗结皮性好，适用于新型水泥干法窑预热器四、五级筒，分解炉、窑尾烟室、上升烟道和下料管等高温度部位。

Description

一种镁尖晶石抗结皮浇注料
技术领域
本发明属于耐火材料技术领域，具体涉及一种镁尖晶石抗结皮浇注料。
背景技术
结皮是指生料粉与窑气中有害组分所形成的粘附在窑尾系统内壁的层状物。水泥生产中碱、氯、硫等挥发性组分在窑系统中内会进行挥发和凝聚的反复循环，预热器或分解炉的器壁被流经它的气流携带的粉状物料粘附，并不断增厚，造成管道空间狭窄物料不畅通，进而导致水泥窑系统的结皮堵塞，引起整个窑系统热工制度紊乱，使生产难于维持。为此不少厂家开发了含SiC的低水泥耐火浇注料、SiC浸渍耐火砖、含锆耐火材料、SiO2浸渍耐火砖等产品，减缓了碱等化合物对衬体的结皮侵蚀。如果温度较低(<950℃)，当含ZrO2的耐火材料遇碱时，在其表面会形成玻璃层，覆盖在衬料表面，由此就防止了碱的进一步渗入及削弱了结皮的粘附力，有利于结皮因自身重力的作用而自行脱落，但由于ZrO2原材料的成本特别高，严重制约了其在水泥窑用耐火材料中的应用。目前水泥窑中使用的抗结皮耐火材料还是以碳化硅质为主，SiC属于中性材料，不与硫酸盐反应，虽然与游离碱反应，但可形成高粘度的釉层而减缓侵蚀过程，具有较好的耐碱性和抗结皮性。然而SiC质耐火材料一般用于回转窑窑尾系统800-1000℃的温度范围内，当使用温度超过1050℃时，材料表面起保护作用的SiO2薄膜将与水泥窑中的CaO发生反应形成C2S，形成液相并粘结物料，丧失抗结皮功能，造成耐火材料的严重结皮。申请号为200810146978.3的中国专利申请、专利号为ZL201110212807.8的中国专利、专利号为ZL201110212855.7的中国专利、专利号为ZL201410424467.9的中国专利中，均采用镁铝尖晶石作为抗结皮材料的主要材质，使用硅灰和纯铝酸钙水泥作为结合剂，水泥带入的CaO与硅灰带入的SiO2在1200℃以上和窑料中循环富集的碱发生反应形成低共熔物而产生液相，粘结物料，严重影响了材料的抗结皮性能，且抗热震性能较差。
发明内容
本发明所要解决的技术问题在于提供一种镁尖晶石抗结皮浇注料，具有较好的高温性能和抗热震性，抗结皮性好，适用于新型水泥干法窑预热器四、五级筒，分解炉、窑尾烟室、上升烟道和下料管等高温度部位。
为解决上述技术问题，本发明提供的一种镁尖晶石抗结皮浇注料，包含以下各组分及重量份：
Figure BDA0002264104560000021
优选地，所述黑刚玉包括粒度为5～8mm、3～5mm、1～3mm三种规格，各种规格的重量份如下：
5～8mm黑刚玉 20～30份
3～5mm黑刚玉 15～25份
1～3mm黑刚玉 15～20份。
优选地，所述黑刚玉中Al2O3的质量百分含量不小于72％。
优选地，所述镁铝尖晶石的粒度为0～1mm。
优选地，所述镁铝尖晶MgO的质量百分含量不小于31％。
优选地，所述钛酸铝的粒度为0～1mm。
优选地，所述钛酸铝中Al2O3的质量百分含量不小于45％，TiO2的的质量百分含量不小于35％。
优选地，所述尖晶石水泥中MgO的质量百分含量不小于20％，CaO的质量百分含量不大于15％。
本发明的有益效果在于：
1、本发明骨料以黑刚玉、钛酸铝、尖晶石为主，基质部分能够在高温下形成堇青石相，通过选用黑刚玉与钛酸铝复合，黑刚玉中以铁铝尖晶石相为主，在材质方面保证产品的抗结皮性能，同时利用尖晶石和钛酸铝两者之间热膨胀系数的差异，使得浇注料骨料之间、骨料和结合相之间产生微裂纹或弱界面，能够吸收由于温度急变而产生的热应力，提高浇注料的抗热震性；在基质部分，结合相的平衡组成落在尖晶石和堇青石连线位置附近，组成和主体材料组成相似，没有引入异类组分而降低浇注料的中高温性能，不会生成低熔点物相，确保了抗结皮浇注料的高温性能。
2、本发明采用尖晶石水泥作为结合剂，在材质方面与基质部分相匹配，尖晶石水泥含有与铝酸钙矿物相一同煅烧生成的尖晶石相，具有结合强度高、工作性能好等特点。
具体实施方式
实施例1
一种镁尖晶石抗结皮浇注料，包含以下各组分及重量份：
Figure BDA0002264104560000041
其中，所述黑刚玉中Al2O3的质量百分含量不小于72％；所述镁铝尖晶MgO的质量百分含量不小于31％；所述钛酸铝中Al2O3的质量百分含量不小于45％，TiO2的的质量百分含量不小于35％；所述尖晶石水泥中MgO的质量百分含量不小于20％，CaO的质量百分含量不大于15％。
实施例2
一种镁尖晶石抗结皮浇注料，包含以下各组分及重量份：
Figure BDA0002264104560000042
Figure BDA0002264104560000051
其中，所述黑刚玉中Al2O3的质量百分含量不小于72％；所述镁铝尖晶MgO的质量百分含量不小于31％；所述钛酸铝中Al2O3的质量百分含量不小于45％，TiO2的的质量百分含量不小于35％；所述尖晶石水泥中MgO的质量百分含量不小于20％，CaO的质量百分含量不大于15％。
实施例3
一种镁尖晶石抗结皮浇注料，包含以下各组分及重量份：
Figure BDA0002264104560000052
其中，所述黑刚玉中Al2O3的质量百分含量不小于72％；所述镁铝尖晶MgO的质量百分含量不小于31％；所述钛酸铝中Al2O3的质量百分含量不小于45％，TiO2的的质量百分含量不小于35％；所述尖晶石水泥中MgO的质量百分含量不小于20％，CaO的质量百分含量不大于15％。
实施例4
一种镁尖晶石抗结皮浇注料，包含以下各组分及重量份：
Figure BDA0002264104560000061
其中，所述黑刚玉中Al2O3的质量百分含量不小于72％；所述镁铝尖晶MgO的质量百分含量不小于31％；所述钛酸铝中Al2O3的质量百分含量不小于45％，TiO2的的质量百分含量不小于35％；所述尖晶石水泥中MgO的质量百分含量不小于20％，CaO的质量百分含量不大于15％。
实施例5
一种镁尖晶石抗结皮浇注料，包含以下各组分及重量份：
Figure BDA0002264104560000062
Figure BDA0002264104560000071
其中，所述黑刚玉中Al2O3的质量百分含量不小于72％；所述镁铝尖晶MgO的质量百分含量不小于31％；所述钛酸铝中Al2O3的质量百分含量不小于45％，TiO2的的质量百分含量不小于35％；所述尖晶石水泥中MgO的质量百分含量不小于20％，CaO的质量百分含量不大于15％。
上述实施例1-5所制备的镁尖晶石抗结皮浇注料性能如下：
Figure BDA0002264104560000072
本发明骨料以黑刚玉、钛酸铝、尖晶石为主，基质部分能够在高温下形成堇青石相，通过选用黑刚玉与钛酸铝复合，黑刚玉中以铁铝尖晶石相为主，在材质方面保证产品的抗结皮性能，同时利用尖晶石和钛酸铝两者之间热膨胀系数的差异，使得浇注料骨料之间、骨料和结合相之间产生微裂纹或弱界面，能够吸收由于温度急变而产生的热应力，提高浇注料的抗热震性；在基质部分，结合相的平衡组成落在尖晶石和堇青石连线位置附近，组成和主体材料组成相似，没有引入异类组分而降低浇注料的中高温性能，不会生成低熔点物相，确保了抗结皮浇注料的高温性能。
本发明采用尖晶石水泥作为结合剂，在材质方面与基质部分相匹配，尖晶石水泥含有与铝酸钙矿物相一同煅烧生成的尖晶石相，具有结合强度高、工作性能好等特点。
综上，本发明制备的抗结皮浇注料具有较高的强度、耐火度和耐磨强度，高温体积稳定性非常好，耐磨性和耐蚀性优异，高温强度大，导热系数高，线膨胀系数小，抗热震性好，不与水泥生料反应，具有良好的抗结皮性，特别适用于新型水泥干法窑预热器四、五级筒，分解炉、窑尾烟室、上升烟道和下料管等高温度部位。
上述说明是示例性的而非限制性的。通过上述说明本领域技术人员可以意识到本发明的许多种改变和变形，其也将落在本发明的实质和范围之内。

Claims (8)

1.一种镁尖晶石抗结皮浇注料，其特征在于，包含以下各组分及重量份：
Figure FDA0002264104550000011
2.根据权利要求1所述的镁尖晶石抗结皮浇注料，其特征在于，所述黑刚玉包括粒度为5～8mm、3～5mm、1～3mm三种规格，各种规格的重量份如下：
5～8mm黑刚玉 20～30份
3～5mm黑刚玉 15～25份
1～3mm黑刚玉 15～20份。
3.根据权利要求1或2所述的镁尖晶石抗结皮浇注料，其特征在于，所述黑刚玉中Al2O3的质量百分含量不小于72％。
4.根据权利要求1所述的镁尖晶石抗结皮浇注料，其特征在于，所述镁铝尖晶石的粒度为0～1mm。
5.根据权利要求1或4所述的镁尖晶石抗结皮浇注料，其特征在于，所述镁铝尖晶MgO的质量百分含量不小于31％。
6.根据权利要求1所述的镁尖晶石抗结皮浇注料，其特征在于，所述钛酸铝的粒度为0～1mm。
7.根据权利要求1或6所述的镁尖晶石抗结皮浇注料，其特征在于，所述钛酸铝中Al2O3的质量百分含量不小于45％，TiO2的的质量百分含量不小于35％。
8.根据权利要求1所述的镁尖晶石抗结皮浇注料，其特征在于，所述尖晶石水泥中MgO的质量百分含量不小于20％，CaO的质量百分含量不大于15％。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112979326A (zh) * 2021-01-29 2021-06-18 临沂中联水泥有限公司 一种预热器用抗结皮耐磨耐火材料
CN113800931A (zh) * 2021-11-04 2021-12-17 浙江锦诚新材料股份有限公司 一种窑口抗剥落浇注料及其使用方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101412630A (zh) * 2008-08-29 2009-04-22 瑞泰科技股份有限公司 水泥窑用镁铝尖晶石抗结皮浇注料
CN101514109A (zh) * 2009-01-23 2009-08-26 安徽宁火新材料有限公司 水泥窑喷煤管浇注料
CN107141000A (zh) * 2017-06-03 2017-09-08 嘉兴新耐建材有限公司 一种抗结皮耐磨浇注料
CN109265185A (zh) * 2018-10-30 2019-01-25 浙江锦诚新材料股份有限公司 一种窑口专用浇注料

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101412630A (zh) * 2008-08-29 2009-04-22 瑞泰科技股份有限公司 水泥窑用镁铝尖晶石抗结皮浇注料
CN101514109A (zh) * 2009-01-23 2009-08-26 安徽宁火新材料有限公司 水泥窑喷煤管浇注料
CN107141000A (zh) * 2017-06-03 2017-09-08 嘉兴新耐建材有限公司 一种抗结皮耐磨浇注料
CN109265185A (zh) * 2018-10-30 2019-01-25 浙江锦诚新材料股份有限公司 一种窑口专用浇注料

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112979326A (zh) * 2021-01-29 2021-06-18 临沂中联水泥有限公司 一种预热器用抗结皮耐磨耐火材料
CN113800931A (zh) * 2021-11-04 2021-12-17 浙江锦诚新材料股份有限公司 一种窑口抗剥落浇注料及其使用方法

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