CN115385701A - 一种有色冶炼阳极炉吹氧、吹还原剂管涂抹料及其制备方法 - Google Patents
一种有色冶炼阳极炉吹氧、吹还原剂管涂抹料及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种有色冶炼阳极炉吹氧、吹还原剂管涂抹料及其制备方法。本发明涂抹料主要由3~1mm的焦宝石颗粒、1~0mm的焦宝石颗粒、<0.088mm的焦宝石粉、漂珠、广西白泥、<0.088mm的碳化硅和<0.018mm的硅微粉组成;另外,加入防爆纤维、水玻璃和促凝剂氟硅酸钠。将各种原料搅拌混匀,然后通过挤泥设备挤压均匀涂抹在钢管上。本发明产品具有粘结强度好、致密度高、耐冲刷、抗溶液熔渣侵蚀性好,由此解决了吹氧、吹还原剂管不耐侵蚀、冲刷、易氧化现状,提高了吹氧、吹还原剂管的使用寿命,降低了吨铜消耗成本。
Description
一、技术领域:
本发明属于耐火材料技术领域,具体涉及一种有色冶炼阳极炉用吹氧、吹还原剂管用涂抹料及其制备方法。
二、背景技术:
吹氧管被广泛应用于炼钢吹氧清炉、盛钢桶吹氧开浇、炼铁高炉吹氧开出铁口等领域,为延长吹氧管的寿命,国际国内通用做法是将普通吹氧钢管的外表涂上耐火物质,达到减少劳动强度和降低吨钢消耗的目的。但这种涂料多数采用硅酸盐或氧化镁类物质,采用这些物质涂层后的吹氧管可起到一定的作用,但普遍存在三方面的问题:其一是成型后都需要低温烘烤,既成本高,又延长制作周期;其二是高温下涂料的热膨胀性与金属不匹配,强度及耐磨性不够,导致使用寿命短;其三是吹氧管在涂层前都需要除锈等处理,费时费力。
有色冶炼阳极炉用吹氧管主要是输送氧气或其他气体,在炉内熔化并精炼铜液,进一步清除铜液中的杂质,注入还原剂改变炉内的气氛。目前,有色金属铜冶炼阳极炉所用吹氧管多采用低含量镁砂或低铝含量的高铝矾土再加入液体水玻璃搅拌,搅拌均匀的物料人工涂抹到钢管上,钢管和涂抹料粘结强度较差、涂抹不均匀、抗冲刷和抗侵蚀性能较差,不能满足阳极炉正常使用。因此,需开发一种抗铜溶液和铜渣侵蚀性强、耐冲刷的吹氧、吹还原剂管涂抹料。
三、发明内容:
本发明要解决的技术问题是:根据现有吹氧管存在的缺点,本发明提供一种有色冶炼阳极炉吹氧、吹还原剂管涂抹料及其制备方法。利用本发明涂抹料涂于吹氧管上,吹氧、吹还原剂管具有粘结强度好、致密度高、耐冲刷、抗熔液熔渣侵蚀好等优点,由此解决了吹氧、吹还原剂管不耐侵蚀、冲刷、易氧化现状,提高了吹氧、还原剂管的使用寿命,降低了吨铜消耗成本。由于减少了吹氧、还原剂管的更换次数,同时采用中质材料,降低了吹氧、还原管的重量,大大降低了操作工的劳动强度。
为了解决上述问题,本发明采取的技术方案是:
本发明提供一种有色冶炼阳极炉吹氧、吹还原剂管涂抹料,以重量百分含量表示,所述涂抹料的主要原料组成为:3~1mm的焦宝石颗粒15~25%、1~0mm的焦宝石颗粒20~30%、<0.088mm的焦宝石粉5~20%、漂珠5~15%、广西白泥8~20%、<0.088mm的碳化硅5~15%和<0.018mm的硅微粉1~6%;另外,加入占上述各种原料总重量0.1~1.5%的防爆纤维、15~25%的水玻璃和0~2%的促凝剂氟硅酸钠。
根据上述的有色冶炼阳极炉吹氧、吹还原剂管涂抹料,所述焦宝石中主要化学成分及其重量百分含量分别为Al2O3≥44%、SiO2≥50%;所述漂珠中主要化学成分及其重量百分含量分别为Al2O3≥30%、SiO2≥55%;所述广西白泥中主要化学成分及其重量百分含量分别为Al2O3≥34%、SiO2≥48%。
根据上述的有色冶炼阳极炉吹氧、吹还原剂管涂抹料,所述碳化硅中主要化学成分及其重量百分含量为SiC≥90%;所述硅微粉中主要化学成分及其重量百分含量为SiO2≥90%。
根据上述的有色冶炼阳极炉吹氧、吹还原剂管涂抹料,所述水玻璃为液体水玻璃,其模数为2.5~3.0、比重为1.3~1.4。
根据上述的有色冶炼阳极炉吹氧、吹还原剂管涂抹料,所述涂抹料的制备方法为:按照上述涂抹料配比比例称取各种原料,将各种原料搅拌混合均匀,混匀后通过挤泥设备挤压均匀涂抹在钢管上。
本发明的积极有益效果:
1、利用本发明涂抹料涂于吹氧管上,吹氧、吹还原剂管具有粘结强度好、致密度高、耐冲刷、抗熔液熔渣侵蚀好等优点,由此解决了吹氧、吹还原剂管不耐侵蚀、冲刷、易氧化现状,提高了吹氧、还原剂管的使用寿命,降低了吨铜消耗成本。由于减少了吹氧、还原剂管的更换次数,同时采用中质材料,降低了吹氧、还原管的重量,大大降低了操作工的劳动强度。
2、本发明技术方案中,采用的广西白泥具有可塑性好,有助于涂抹料在钢管上涂抹均匀,结合性好能增加涂抹料和钢管之间的粘接强度,并且是良好的陶瓷烧结剂,涂抹料在使用过程中,产生陶瓷结合,保证了高温下的使用强度,同时也增加了材料的抗冲刷能力。
2、本发明技术方案中,采用碳化硅原料,碳化硅在高温下发生反应,产生二氧化硅薄膜,抑制了熔液和熔渣的渗透,提高了材料的抗熔液和熔渣侵蚀能力。
3、本发明技术方案中,采用液体水玻璃作为结合剂,具有粘结性良好,吸收空气中的CO2产生酸碱置换反应,析出二氧化硅胶体并凝聚,析出的SiO2凝胶把骨料和粉料粘结起来完成凝化过程,凝化后使材料具有较高的常温强度,高温强度损失少,热震稳定性和耐冲刷性能较好。
4、本发明技术方案中,有色冶炼阳极炉吹氧、吹还原剂管涂抹料的制备方法是:将原料按比例搅拌混合均匀后,通过挤泥设备挤压涂抹在钢管上。该制备方法不仅提高了泥料和钢管粘结强度、涂层均匀致密度,同时间接地提高了制品的强度、抗侵蚀和抗冲刷能力。
5、本发明技术方案中,采用焦宝石、漂珠、广西白泥为主要原料,添加硅微粉、碳化硅粉和防爆纤维,水玻璃作为结合剂、氟硅酸钠作为促凝剂,原料经搅拌混匀通过挤泥设备挤压均匀涂抹在钢管上。本发明产品钢管与涂抹料粘结力强、致密度高、耐冲刷,抗熔液熔渣侵蚀好,改善了吹氧、吹还原剂管不耐侵蚀、冲刷现状,提高了吹氧、吹还原剂管的使用寿命,降低了吨铜消耗成本。同时采用中质材料,降低了吹氧、还原管的重量,降低了操作工的劳动强度。
四、具体实施方式:
以下结合实施例进一步阐述本发明,但并不限制本发明技术方案保护的范围。
以下实施例中,采用的焦宝石中主要化学成分及其重量百分含量分别为Al2O3≥44%、SiO2≥50%;漂珠中主要化学成分及其重量百分含量分别为Al2O3≥30%、SiO2≥55%;广西白泥中主要化学成分及其重量百分含量分别为Al2O3≥34%、SiO2≥48%;水玻璃为液体水玻璃,其模数为2.5~3.0、比重为1.3~1.4;碳化硅中主要化学成分及其重量百分含量为SiC≥90%,硅微粉中主要化学成分及其重量百分含量为SiO2≥90%。
实施例1:
本发明有色冶炼阳极炉吹氧、吹还原剂管涂抹料,以重量百分含量表示,所述涂抹料的主要原料组成为:3~1mm的焦宝石颗粒25%、1~0mm的焦宝石颗粒25%、<0.088mm的焦宝石粉16%、0~0.5mm的漂珠10%、<0.074mm的广西白泥15%、<0.088mm的碳化硅6%和<0.018mm的硅微粉3%;另外,加入占上述各种原料总重量0.5%的防爆纤维、20%的水玻璃和1%的促凝剂氟硅酸钠。
实施例2:
本发明有色冶炼阳极炉吹氧、吹还原剂管涂抹料,以重量百分含量表示,所述涂抹料的主要原料组成为:3~1mm的焦宝石颗粒20%、1~0mm的焦宝石颗粒28%、<0.088mm的焦宝石粉15%、0~0.5mm的漂珠12%、<0.074mm的广西白泥12%、<0.088mm的碳化硅8%和<0.018mm的硅微粉5%;另外,加入占上述各种原料总重量1%的防爆纤维、22%的水玻璃和0.5%的促凝剂氟硅酸钠。
实施例3:
本发明有色冶炼阳极炉吹氧、吹还原剂管涂抹料,以重量百分含量表示,所述涂抹料的主要原料组成为:3~1mm的焦宝石颗粒18%、1~0mm的焦宝石颗粒22%、<0.088mm的焦宝石粉10%、0~0.5mm的漂珠15%、<0.074mm的广西白泥18%、<0.088mm的碳化硅15%和<0.018mm的硅微粉2%;另外,加入占上述各种原料总重量1.2%的防爆纤维、18%的水玻璃和1.5%的促凝剂氟硅酸钠。
实施例4:
本发明有色冶炼阳极炉吹氧、吹还原剂管涂抹料,以重量百分含量表示,所述涂抹料的主要原料组成为:3~1mm的焦宝石颗粒15%、1~0mm的焦宝石颗粒30%、<0.088mm的焦宝石粉20%、0~0.5mm的漂珠9%、<0.074mm的广西白泥10%、<0.088mm的碳化硅12%和<0.018mm的硅微粉4%;另外,加入占上述各种原料总重量1.5%的防爆纤维、24%的水玻璃和2%的促凝剂氟硅酸钠。
实施例5:
本发明有色冶炼阳极炉吹氧、吹还原剂管涂抹料,以重量百分含量表示,所述涂抹料的主要原料组成为:3~1mm的焦宝石颗粒24%、1~0mm的焦宝石颗粒20%、<0.088mm的焦宝石粉18%、0~0.5mm的漂珠14%、<0.074mm的广西白泥8%、<0.088mm的碳化硅10%和<0.018mm的硅微粉6%;另外,加入占上述各种原料总重量0.8%的防爆纤维、25%的水玻璃和1.8%的促凝剂氟硅酸钠。
本发明实施例1-5所述有色冶炼阳极炉吹氧、吹还原剂管涂抹料的制备方法:按照实施例1-5任一所述涂抹料配比比例称取各种原料,将各种原料搅拌混合均匀,混匀后通过挤泥设备挤压均匀涂抹在钢管上。
将本发明实施例1-5涂抹料产品按照常规进行常温成型,进行检测,检测结果相关数据详见表1。
表1本发明产品相关性能检测实验数据
经过实验以及实践证明,本发明有色冶炼阳极炉吹氧、吹还原剂管涂抹料具有粘结强度好、致密度高、耐冲刷、抗溶液熔渣侵蚀性好,解决了吹氧、吹还原剂管不耐侵蚀、冲刷、易氧化现状,提高了吹氧、吹还原剂管的使用寿命,降低了吨铜消耗成本。同时采用中质材料,降低了吹氧、还原管的重量,大大降低了操作工的劳动强度。
Claims (5)
1.一种有色冶炼阳极炉吹氧、吹还原剂管涂抹料,其特征在于,以重量百分含量表示,所述涂抹料的主要原料组成为:3~1mm的焦宝石颗粒15~25%、1~0mm的焦宝石颗粒20~30%、<0.088mm的焦宝石粉5~20%、漂珠5~15%、广西白泥8~20%、<0.088mm的碳化硅5~15%和<0.018mm的硅微粉1~6%;另外,加入占上述各种原料总重量0.1~1.5%的防爆纤维、15~25%的水玻璃和0~2%的促凝剂氟硅酸钠。
2.根据权利要求1所述的有色冶炼阳极炉吹氧、吹还原剂管涂抹料,其特征在于:所述焦宝石中主要化学成分及其重量百分含量分别为Al2O3≥44%、SiO2≥50%;所述漂珠中主要化学成分及其重量百分含量分别为Al2O3≥30%、SiO2≥55%;所述广西白泥中主要化学成分及其重量百分含量分别为Al2O3≥34%、SiO2≥48%。
3.根据权利要求1所述的有色冶炼阳极炉吹氧、吹还原剂管涂抹料,其特征在于:所述碳化硅中主要化学成分及其重量百分含量为SiC≥90%;所述硅微粉中主要化学成分及其重量百分含量为SiO2≥90%。
4.根据权利要求1所述的有色冶炼阳极炉吹氧、吹还原剂管涂抹料,其特征在于:所述水玻璃为液体水玻璃,其模数为2.5~3.0、比重为1.3~1.4。
5.根据权利要求1所述的有色冶炼阳极炉吹氧、吹还原剂管涂抹料,其特征在于,所述涂抹料的制备方法为:按照权利要求1所述涂抹料配比比例称取各种原料,将各种原料搅拌混合均匀,混匀后通过挤泥设备挤压均匀涂抹在钢管上。
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