CN105777161A - 一种新型环保高炉炮泥 - Google Patents
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Abstract
本发明公开了一种新型环保高炉炮泥,其特征在于所述高炉炮泥由以下重量份的组分组成:用后废炮泥:10~20份;钇莫来石:5~15份;煤矸石生矿:10~20份;改性镁铁铝尖晶石粉:10~25份;改性粘土:10~20份;再生石墨电极粉:10~33份;增稠剂:8~18份,沥青粉:3~8份;Glydol n 2002:0.2~0.5份;外加结合剂:12~14.5份,纳米纤维素0.1;所述的增稠剂为钒铁矿和氧化铜的重量比1:1混合物。该炮泥成本低,透气性好,可以有效维护出铁口扩孔,此外该炮泥在长期存放过程中,使用性能、操作性能不下降。
Description
技术领域
本发明属于高炉炼铁用耐火可塑料领域,具体涉及一种新型环保高炉炮泥及制备方法。
背景技术
高炉是冶炼生铁的主体设备,而高炉冶炼铁完毕后,将铁水从铁口放出后,为了保证冶炼连续进行,必须把出铁口堵上,堵上出铁口的物质,即为炮泥。而出铁口在长期使用过程中,都会有侵蚀,出铁口会出现扩孔,导致铁口变浅,铁流不稳定,出不净铁,甚至跑大流等情况,严重影响生产正常出铁,并最终影响了高炉的使用寿命和产量的增长。而铁口处在炉膛内部,温度高,一般情况下,人无法进入维修。
炮泥属于一次性消耗品,使用寿命一般只需要达到两三个小时即可。因此在满足性能的前提下,本发明使用了用后废炮泥,采煤过程中废弃的无处堆放的煤矸石生矿,降低了产品成本,同时解决了煤矸石固废无处堆放的问题,也节约了其它的资源,属于一种低成本环保型产品。
发明内容
本发明目的是提供一种成本低、资源可循环利用,还具有铁口维护功能的高炉炮泥,本炮泥可有效利用煤矸石生料,废弃物降低成本,同时又可以维护出铁口;此外,炮泥里面加入了Glydoln2002,可以保证炮泥在使用前的存放过程中各项性能不下降。
本发明的上述技术目的是通过以下技术方案得以实现的:一种高炉炮泥,其特征在于所述高炉炮泥由以下重量份的组分组成:用后废炮泥:10~20份;钇莫来石:5~15份;煤矸石生矿:10~20份;改性镁铁铝尖晶石粉:10~25份;改性粘土:10~20份;再生石墨电极粉:10~33份;增稠剂:8~18份,沥青粉:3~8份;Glydoln2002:0.2~0.5份;外加结合剂:12~14.5份,纳米纤维素0.1;所述的增稠剂为钒铁矿和氧化铜的重量比1:1混合物。
作为本发明的优选,所述用后废炮泥需经过破碎机破碎,选取1-0mm的颗粒;所述的钇莫来石是指在莫来石晶格内固溶了氧化钇的特种莫来石,其氧化钇固溶度为2.5%;所述的煤矸石生矿为采煤剥离的物质。
作为本发明的优选,所述的改性镁铁铝预合成尖晶石细粉为220目,化学组成为氧化镁10%,氧化铁35%,氧化铝53%,氧化锆2%;再生石墨电极粉为炼钢用的废电极,磨成325目细粉;钒铁矿为工业级含量80%以上的325目细粉;氧化铜为200目的粉;沥青粉残炭率40%,软化点110℃;Glydoln2002是一种改性剂,可防止有机物挥发,可以使离子交换出现更大的可逆性,装炮后,使炮泥能更快的恢复到原有的性能;纳米纤维素是一种生物可降解材料,可以增加炮泥使用过程中的透气性。
作为本发明的优选,该结合剂是将焦油通过与过氧化钠混合加热而得到的改性结合剂。作为优选,所述改性结合剂的苯并芘含量不大于100ppm。
综上所述,本发明与现有技术相比,具有以下突出优点及有益效果:
本发明与现有炮泥产品相比,由于加入了镁铁铝预合成尖晶石粉和增稠剂,可以在使用过程中修复铁口,并促进已修复铁口的烧结,防止出铁口再扩孔的功能。
本产品与现有炮泥相比,加入Glydoln2002后,保存时间长,在长期存放后,各项性能不下降;加入的纳米纤维素可以保证炮泥的透气性,使用过程中不会形成铁水的喷火箭现象。
本产品与现有炮泥比成本更低,选用生煤矸石、废炮泥等成本低的物质,明显降低了炮泥的成本,又完全能满足高炉正常生产的需要;加入了改性粘土,改善了炮泥的塑性和活性,对修复出铁口更有利。
使用本发明后,出铁口得到维护,高炉生产正常,炮泥价格下降,为企业及用户都节约了成本,可以彻底改变目前高炉炉前铁口变浅,炮泥污染严重,成本高等问题。
具体实施方式
下面结合实施例对本发明作进一步详细说明。
实施例1:一种用于1080m3高炉炮泥,其特征在于所述高炉炮泥由以下重量份的组分组成:用后废炮泥:10~20份;钇莫来石:5~15份;煤矸石生矿:10~20份;改性镁铁铝尖晶石粉:10~25份;改性粘土:10~20份;再生石墨电极粉:10~35份;增稠剂:8~18份,沥青粉:3~8份;Glydoln2002:0.2~0.5份;外加结合剂:14.5份,纳米纤维素0.1。炮泥的制备方法:将所有原料放入混碾机,先预混合10分钟;然后加入结合剂总量的90%,湿碾30分钟;加入剩下的10%结合剂,再湿碾10分钟;经过炮泥切片机切片,然后经挤泥机,挤泥成型,装袋,即为成品;挤泥温度设定为65℃。
实施例2:一种用于2500m3高炉炮泥,其特征在于所述高炉炮泥由以下重量份的组分组成:用后废炮泥:10~20份;钇莫来石:5~15份;煤矸石生矿:10~20份;改性镁铁铝尖晶石粉:10~25份;;改性粘土:10~20份;再生石墨电极粉:10~35份;增稠剂:8~18份,沥青粉:3~8份;Glydoln2002:0.2~0.5份;外加结合剂:14份,纳米纤维素0.1。炮泥的制备方法:将所有原料放入混碾机,先预混合10分钟;然后加入结合剂总量的90%,湿碾30分钟;加入剩下的10%结合剂,再湿碾10分钟;经过炮泥切片机切片,然后经挤泥机,挤泥成型,装袋,即为成品;挤泥温度设定为72℃。
实施例3:一种用于3200m3高炉炮泥,其特征在于所述高炉炮泥由以下重量份的组分组成:用后废炮泥:10~20份;钇莫来石:5~15份;煤矸石生矿:10~20份;改性镁铁铝尖晶石粉:10~25份;改性粘土:10~20份;再生石墨电极粉:10~35份;增稠剂:8~18份,沥青粉:3~8份;Glydoln2002:0.2~0.5份;外加结合剂:13份,纳米纤维素0.1。炮泥的制备方法:将所有原料放入混碾机,先预混合10分钟;然后加入结合剂总量的90%,湿碾30分钟;加入剩下的10%结合剂,再湿碾10分钟;经过炮泥切片机切片,然后经挤泥机,挤泥成型,装袋,即为成品;挤泥温度设定为65℃。
实施例4:一种用于5800m3高炉炮泥,其特征在于所述高炉炮泥由以下重量份的组分组成:用后废炮泥:10~20份;钇莫来石粉:5~15份;煤矸石生矿:10~20份;改性镁铁铝尖晶石:10~25份;改性粘土:10~20份;再生石墨电极粉:10~35份;增稠剂:8~18份,沥青粉:3~8份;Glydoln2002:0.2~0.5份;外加结合剂:12份,纳米纤维素0.1。炮泥的制备方法:将所有原料放入混碾机,先预混合10分钟;然后加入结合剂总量的90%,湿碾30分钟;加入剩下的10%结合剂,再湿碾10分钟;经过炮泥切片机切片,然后经挤泥机,挤泥成型,装袋,即为成品;挤泥温度设定为65℃。
上述实施例1~4的性能检测结果见下表
其使用后情况如下:容易打泥,铁口深度适宜,平均压炮20分钟,烧结迅速,抗渣铁侵蚀性好,铁口维护明显,不冒黄烟,炉前工作环境得到明显改善。
本具体实施例仅仅是对本发明的解释,其并不是对发明的限制,本领域技术人员在阅读本说明书后可以根据需要对本实施例做出任何修改,但只要在本发明的权利要求范围内都受到专利法的保护。
Claims (2)
1.一种用于1080m3高炉炮泥,其特征在于所述高炉炮泥由以下重量份的组分组成:用后废炮泥:10~20份;钇莫来石:5~15份;煤矸石生矿:10~20份;改性镁铁铝尖晶石粉:10~25份;改性粘土:10~20份;再生石墨电极粉:10~35份;增稠剂:8~18份,沥青粉:3~8份;Glydoln2002:0.2~0.5份;外加结合剂:14.5份,纳米纤维素0.1;所述的增稠剂为钒铁矿和氧化铜的重量比1:1混合物;所述的改性镁铁铝尖晶石粉为220目,化学组成为氧化镁10%,氧化铁35%,氧化铝53%,氧化锆2%;所述的改性粘土为广西泥500℃保温3小时脱去部分水后获得的产物;所述的钇莫来石是指在莫来石晶格内固溶了氧化钇的特种莫来石,其氧化钇固溶度为2.5%。
2.根据权利要求1所述的一种高炉炮泥,其特征在于:所述外加结合剂为改性低苯并芘焦油。
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CN111848191A (zh) * | 2020-07-29 | 2020-10-30 | 郑州科信炉料有限公司 | 一种矿热炉用镁炭质堵塞泥及其制备方法 |
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CN102557691A (zh) * | 2012-01-17 | 2012-07-11 | 山国强 | 一种低成本高炉炮泥 |
CN103011871A (zh) * | 2013-01-24 | 2013-04-03 | 山国强 | 一种新型高炉炮泥 |
CN103044049A (zh) * | 2013-01-24 | 2013-04-17 | 山国强 | 一种高炉炮泥 |
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JPS57123872A (en) * | 1981-01-26 | 1982-08-02 | Nippon Steel Corp | Indefinite form refractories for flow casting |
CN1290671A (zh) * | 2000-11-02 | 2001-04-11 | 石家庄钢铁有限责任公司 | 低水高炉铁口炮泥及其制备方法 |
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CN103011871A (zh) * | 2013-01-24 | 2013-04-03 | 山国强 | 一种新型高炉炮泥 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111848191A (zh) * | 2020-07-29 | 2020-10-30 | 郑州科信炉料有限公司 | 一种矿热炉用镁炭质堵塞泥及其制备方法 |
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