CN108276010A - 一种焦炉陶瓷热抹补料及其制备方法 - Google Patents

一种焦炉陶瓷热抹补料及其制备方法 Download PDF

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CN108276010A
CN108276010A CN201810149598.9A CN201810149598A CN108276010A CN 108276010 A CN108276010 A CN 108276010A CN 201810149598 A CN201810149598 A CN 201810149598A CN 108276010 A CN108276010 A CN 108276010A
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coke oven
fed batch
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王长宝
刘智伟
亓海录
王俊
王小强
张敬涛
安增琴
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Shandong Iron and Steel Group Co Ltd SISG
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Abstract

本发明公开了一种用于焦炉热修补的陶瓷抹补料及其制备方法，其包括粒度为3～5mm的煅烧石英10％～30％，粒度为3～5mm的硅线石15％～30％，粒度为1～3mm的锆英石5％～15％，粒度为0～3mm的碳化钛10％～15％，粒度≤50μm的金属铝粉4％～9％，粒度≤50μm的金属硅粉5～10％，粒度为180目的α‑Al2O3微粉6％～10％，沥青3％～5％，粒度≤0.088mm的铁鳞1％～3％，粒度为200目Ca(OH)21％～3％，纸纤维2％～4％。该陶瓷热抹补料可满足焦炉内部使用条件，施工方便，不需要任何设备，具有修补速度快、效率高、时间短，不影响焦炉正常生产等优点。同时，该陶瓷热抹补料强度更高，使用寿命更长，并且不会对墙体造成新的损伤。

Description

一种焦炉陶瓷热抹补料及其制备方法
技术领域
本发明属于钢铁行业焦炉修补用耐火材料领域，具体的说，涉及一种用于焦炉热修补的陶瓷抹补料及其制备方法。
背景技术
焦炉是复杂的大型工业窑炉，其建设投资约占整个焦化厂总投资的20％左右，其使用寿命直接影响着焦化企业的生产成本和经济效益。焦炉炉龄较长，一般在30年左右，有的甚至达到40年以上。但是其在长期的运行过程中，由于受到温度应力、物理化学作用以及机械力撞击等因素影响，炉体不可避免地产生损毁，主要表现为墙面剥蚀、炉头麻面掉块、过顶砖裂缝等，严重影响焦炉的正常生产和使用寿命。因此，对焦炉的损坏进行合理的修补是十分必要的，加强焦炉修补、延长焦炉炉龄就成为焦化工业的一项重要工作。
起初，国内外焦炉常采用冷态修补方法，包括湿法喷补、抹补、半干法喷补等，冷态修补的优点为修补速度快，但由于修理时焦炉维持在较高的温度，所以冷态修补会对墙体造成新的损伤，逐渐被热态修补所替代。目前常用的修补方法是热态修补，即陶瓷焊补法。热态修补不会对墙体造成新的损伤。同时，零膨胀砖具有膨胀小、抗热震性极佳且荷重软化温度高的独有特性，新砌砖和旧砖之间不需预留膨胀缝和滑动缝，保证了新砌砖与旧砖的接合严密、平整。热态修补的缺点是需要借助焊补设备，且上料过多无法做到充分燃烧，因此焊补效率低、时间长，损毁严重的炉头作业时间长达6个小时以上，影响到焦炉的正常生产。
发明内容
本发明解决的技术问题是，针对现有技术目前存在的问题，提供一种成本低廉，性能优良的焦炉陶瓷热抹补料，该抹补料具有成本低、耐高温，热震性能好，寿命长等优点，与现有陶瓷焊补料相比，修补时间大大缩短，工作效率明显提高。
为解决上述技术问题，本发明采用的技术方案是：
本发明的焦炉陶瓷热抹补料，包括如下原料组分：
根据本发明所述的焦炉陶瓷热抹补料，其中优选地，所述陶瓷热抹补料包括如下原料组分：
根据本发明所述的焦炉陶瓷热抹补料，其中进一步优选地，所述陶瓷热抹补料包括如下原料组分：
根据本发明所述的焦炉陶瓷热抹补料，其中优选地，所述陶瓷热抹补料包括如下原料组分：
本发明的焦炉陶瓷热抹补料具有良好的高温化学稳定性。石英三方晶系结构与硅线石协方晶系相互穿插交织在一起形成的网络结构，结合紧密，结构稳定，具有良好的耐磨性。锆英石与石英颗粒完美融合，起到缓冲石英晶格碰撞作用，提高材料的热震稳定性。碳化钛具有良好的导热性，使材料的高温吹氧烧结过程中，外部热量迅速进入内部，加快烧结过程及材料整体稳定性。金属铝粉和硅粉提高燃体，α-Al2O3微粉及沥青起到结合剂作用，铁鳞和Ca(OH)2促进烧结和晶形转换，纸纤维提供产生气体排出通道。
本发明还提供了上述焦炉陶瓷热抹补料的制备方法，包括以下步骤：
1)按比例称取各种原料，将除沥青以外的原料混合搅拌5～6分钟，获得混合料；
2)将沥青加热，获得70℃以上的液体沥青，将液体沥青加入步骤1)的混合料中，混合搅拌2～3分钟，获得焦炉陶瓷热抹补料。
本发明还提供了一种焦炉陶瓷热抹修补方法，包括以下步骤：
1)按上述的制备方法制备焦炉陶瓷热抹补料；
2)将焦炉陶瓷热抹补料涂抹在待修补的墙体上，然后用氧气喷吹物料表面，助其燃烧，喷吹3～5分钟，完成修补。
根据本发明所述的焦炉陶瓷热抹修补方法，其中优选地，喷吹过程中氧气流量由小到大。氧气输出压力由2MP逐渐提高到7MP。
本发明将冷态修补与热态修补两种修补方法的优点结合到一起，提供一种新型陶瓷抹补料。本发明的陶瓷热抹补料可满足焦炉内部使用条件，施工方便，不需要任何设备，具有修补速度快、效率高、时间短，不影响焦炉正常生产等优点，可以满足焦炉炼焦连续生产作业的要求。同时，该陶瓷热抹补料强度更高，使用寿命更长，并且不会对墙体造成新的损伤。
具体地，本发明具有积极有效的效果如下：
1、同目前冷态修补方法相比，该陶瓷热抹补料不会对墙体造成新的损伤。
2、同目前陶瓷焊补料相比，该陶瓷热抹补料施工简单，不需要焊补设备。
3、同目前陶瓷焊补料相比，该陶瓷热抹补料施工迅速，所有炉头均可在2个小
时以内完成修补工作，大大缩短了修补时间，不会影响焦炉正常生产。
4、同目前陶瓷焊补料及冷态修补方法相比，该陶瓷热抹补料强度更高，使用寿命更长。
5、该焦炉陶瓷热抹补料可适用于焦炉内部工作要求，其主要理化指标如下：
具体实施方式
实施例1
一种焦炉陶瓷热抹补料，其原料配方见表1：
按表1中所述比例称取各种物料，将除沥青外的物料放入搅拌机中混合搅拌5～6分钟，再将加热至70℃以上的液体沥青加入上述混合的物料中继续混合搅拌2～3分钟。搅拌好后，将物料涂抹在待修补的墙体上，铺展均匀、平整。然后用氧气喷吹物料表面，助其燃烧。喷吹过程中氧气流量由小到大，喷吹3～5分钟即可。修补完成。
其主要理化指标如下：
实施例2
一种焦炉陶瓷热抹补料，其原料配方见表1：
焦炉陶瓷热抹补料制备及其使用该补料修补焦炉的方法同实施例1，其主要理化指标如下：
实施例3
一种焦炉陶瓷热抹补料，其原料配方见表1：
焦炉陶瓷热抹补料制备及其使用该补料修补焦炉的方法同实施例1，其主要理化指标如下：
实施例4
一种焦炉陶瓷热抹补料，其原料配方见表1：
焦炉陶瓷热抹补料制备及其使用该补料修补焦炉的方法同实施例1，其主要理化指标如下：
实施例5
一种焦炉陶瓷热抹补料，其原料配方见表1：
焦炉陶瓷热抹补料制备及其使用该补料修补焦炉的方法同实施例1，其主要理化指标如下：
实施例6
一种焦炉陶瓷热抹补料，其原料配方见表1：
焦炉陶瓷热抹补料制备及其使用该补料修补焦炉的方法同实施例1，其主要理化指标如下：
实施例7
一种焦炉陶瓷热抹补料，其原料配方见表1：
以焦炉陶瓷热抹补料制备及其使用该补料修补焦炉的方法同实施例1，其主要理化指标如下：
表1实施例1～7原料配方表
单位：重量百分比(％)
由本发明的实施例可知，本发明焦炉陶瓷抹补料克服了抹补料和陶瓷焊补的缺点，且同时具备了两者的优点，即容易施工，又不会对墙体造成新的损伤。同时，修补迅速，工作效率大大提升，所有炉头均可在2个小时以内完成修补工作，大大缩短了修补时间，不会影响焦炉正常生产。且该陶瓷热抹补料强度更高，使用寿命更长。
当然，本发明还可以有多种实施例，在不背离本发明精神及其实质的情况下，熟悉本领域的技术人员可根据本发明的公开做出各种相应的改变和变形，但这些相应的改变和变形都应属于本发明的权利要求的保护范围。

Claims (7)

1.一种焦炉陶瓷热抹补料，其特征在于，所述陶瓷热抹补料包括如下原料组分：
2.根据权利要求1所述的焦炉陶瓷热抹补料，其特征在于，所述陶瓷热抹补料包括如下原料组分：
3.根据权利要求1所述的焦炉陶瓷热抹补料，其特征在于，所述陶瓷热抹补料包括如下原料组分：
4.根据权利要求1所述的焦炉陶瓷热抹补料，其特征在于，所述陶瓷热抹补料包括如下原料组分：
5.一种权利要求1-4任一所述的焦炉陶瓷热抹补料的制备方法，包括以下步骤：
1)按比例称取各种原料，将除沥青以外的原料混合搅拌5～6分钟，获得混合料；
2)将沥青加热，获得70℃以上的液体沥青，将液体沥青加入步骤1)的混合料中，混合搅拌2～3分钟，获得焦炉陶瓷热抹补料。
6.一种焦炉陶瓷热抹修补方法，包括以下步骤：
1)按权利要求5所述的制备方法制备焦炉陶瓷热抹补料；
2)将焦炉陶瓷热抹补料涂抹在待修补的墙体上，然后用氧气喷吹物料表面，助其燃烧，喷吹3～5分钟，完成修补。
7.根据权利要求6所述的焦炉陶瓷热抹修补方法，其特征在于，喷吹过程中氧气流量由小到大。
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