CN109456066A - 一种柔韧性电弧炉密封保温材料的制备方法 - Google Patents
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Abstract
本发明涉及一种柔韧性电弧炉密封保温材料的制备方法,技术方案是,包括以下步骤:(1)将重量百分比85‑92%硅粉、重量百分比5‑10%锆英粉、重量百分比3‑5%纯碱混合均匀;(2)将粉料加入质量分数0.5%的聚丙烯酸钠水溶液中,搅拌均匀,粉料和聚丙烯酸钠水溶液的重量比为1:8‑10;将玻璃棉浸泡置于浸泡液中,浸泡20‑30min后,取出,晾干,即可;本发明不仅具有韧性又有强度,还可以很好的阻止电弧炉热量流失,实验证实:电弧炉热量流失的孔闭后,可以提前熔化好炉内料液,每吨溶液电耗可降低200度以上,每天生产25吨电熔砖可节约电耗5000度,能耗大大降低,并且缩短了熔化时间,直接提高产能,相同的时间可以生产更多的产品。
Description
技术领域
本发明涉及一种柔韧性电弧炉密封保温材料的制备方法。
背景技术
砌筑玻璃窑炉的主要材料是锆刚玉电熔砖,电熔砖的生产是经过锆砂、氧化铝粉以及少量纯碱的混合成为配合料,加入电弧炉进行2000℃的高温熔化为料液,然后浇铸到砂型的型腔内,经过一段时间的保温退火的到电熔砖的毛坯砖。电熔砖生产过程中除了原材料成本、人工成本、设备成本,还有一项很大的消耗就是电耗,每吨电熔砖配合料熔化成料液所需的电耗可达到2500℃至3000℃,极少数厂家可以做到每吨料液电耗在1700℃左右。
电弧炉包括炉体、中部炉以及炉盖三部分组成,炉盖上设置有三个直径为300mm的电极孔、200mm直径的加料孔、150mm直径的氧枪孔。在生产过程中,电极插入炉内的料液中熔化料液,电极与炉盖上的电极孔四周有25mm空间、不加料时加料孔是敞开状态、不吹氧时氧枪孔也是敞开状态。这些位置没有很好地密闭,那么就有大量热量流失,这些因素是料液熔化电耗高居不下的因素主要之一。由于流失热量这些位置属最高温度可达1500℃以上,因此匹配的可定型并且柔韧的耐高温密闭材料很难找到,虽然是一个苦难的课题,但突破非常必要。
发明内容
针对上述情况,为克服现有技术之缺陷,本发明之目的就是提供一种柔韧性电弧炉密封保温材料的制备方法,可有效解决电弧炉炉盖通孔的保温问题。
本发明解决的技术方案是:
一种柔韧性电弧炉密封保温材料的制备方法,包括以下步骤:
(1)粉料的制备
将重量百分比85-92%硅粉、重量百分比5-10%锆英粉、重量百分比3-5%纯碱混合均匀;
(2)浸泡液的制备
将粉料加入质量分数0.5%的聚丙烯酸钠水溶液中,搅拌均匀,粉料和聚丙烯酸钠水溶液的重量比为1:8-10;
(3)玻璃棉的处理
将玻璃棉浸泡置于浸泡液中,浸泡20-30min后,取出,晾干,即可。
本发明配方合理,制备方法简单,晾干后本发明保温材料具有一定的定型强度,拿起后不变形,按照电弧炉炉盖上电极孔、加料孔、氧枪孔的口径大小,把保温材料切割成需要的形状和大小,比这些孔的孔径大即可,然后进行覆盖密封,使用过程中,由于高温状态足够可以使保温材料变成玻璃相半液态状态,增加了其定型强度,越用约耐用,不仅具有韧性又有强度,还可以很好的阻止电弧炉热量流失,实验证实:电弧炉热量流失的孔闭后,可以提前熔化好炉内料液,每吨溶液电耗可降低200度以上,每天生产25吨电熔砖可节约电耗5000度,能耗大大降低,并且缩短了熔化时间,直接提高产能,相同的时间可以生产更多的产品,给企业带来的直接的经济效益。
具体实施方式
以下结合实施例对本发明的具体实施方式作进一步详细说明。
实施例1
本实施例柔韧性电弧炉密封保温材料的制备方法,包括以下步骤:
(1)粉料的制备
将重量百分比85%硅粉、重量百分比10%锆英粉、重量百分比5%纯碱混合均匀;
(2)浸泡液的制备
将粉料加入质量分数0.5%的聚丙烯酸钠水溶液中,搅拌均匀,粉料和聚丙烯酸钠水溶液的重量比为1:8;
(3)玻璃棉的处理
将玻璃棉浸泡置于浸泡液中,浸泡20min后,取出,晾干,即可。
所述的硅粉和锆英粉的粒径≥200目;所述玻璃棉的厚度为20mm。
实施例2
本实施例柔韧性电弧炉密封保温材料的制备方法,包括以下步骤:
(1)粉料的制备
将重量百分比90%硅粉、重量百分比6%锆英粉、重量百分比4%纯碱混合均匀;
(2)浸泡液的制备
将粉料加入质量分数0.5%的聚丙烯酸钠水溶液中,搅拌均匀,粉料和聚丙烯酸钠水溶液的重量比为1:9;
(3)玻璃棉的处理
将玻璃棉浸泡置于浸泡液中,浸泡25min后,取出,晾干,即可。
所述的硅粉和锆英粉的粒径≥200目;所述玻璃棉的厚度为20mm。
实施例3
本实施例柔韧性电弧炉密封保温材料的制备方法,包括以下步骤:
(1)粉料的制备
将重量百分比92%硅粉、重量百分比5%锆英粉、重量百分比3%纯碱混合均匀;
(2)浸泡液的制备
将粉料加入质量分数0.5%的聚丙烯酸钠水溶液中,搅拌均匀,粉料和聚丙烯酸钠水溶液的重量比为1:10;
(3)玻璃棉的处理
将玻璃棉浸泡置于浸泡液中,浸泡30min后,取出,晾干,即可。
所述的硅粉和锆英粉的粒径≥200目;所述玻璃棉的厚度为20mm。
本发明配方中,在玻璃棉纤维中加入硅质粉料,经过高温烧结可增加玻璃棉纤维强度,使其具有高柔韧性兼顾定型强度;玻璃棉在浸泡液的作用下会膨胀到30mm左右,浸泡、晾干后的玻璃棉具有一定的定型强度,拿起后不变形,按照电弧炉炉盖上电极孔、加料孔、氧枪孔的口径大小,把保温材料切割成需要的形状和大小,比这些孔的孔径大即可,然后直接放在孔口上进行覆盖密封,使用时再拿开即可,比如采用电极对原料进行熔化时,将加料孔、氧枪孔覆盖密封,熔化完成后在覆盖电机孔,如果需要吹氧,再移开氧枪孔上的保温材料,吹氧完成后再重新覆盖即可,使用过程中,由于高温状态足够可以使保温材料变成玻璃相半液态状态,增加了其定型强度,越用约耐用,不仅具有韧性又有强度,还可以很好的阻止电弧炉热量流失,经大量实验和实际应用证实:电弧炉热量流失的孔通过本发明保温材料覆盖密闭后,可以提前熔化好炉内料液,经多次试验,平均一炉提前的10-15分钟,每吨溶液电耗可降低200度以上,每天生产25吨电熔砖可节约电耗5000度,能耗大大降低,并且缩短了熔化时间,直接提高产能,相同的时间可以生产更多的产品,给企业带来的直接的经济效益。
Claims (4)
1.一种柔韧性电弧炉密封保温材料的制备方法,其特征在于,包括以下步骤:
(1)粉料的制备
将重量百分比85-92%硅粉、重量百分比5-10%锆英粉、重量百分比3-5%纯碱混合均匀;
(2)浸泡液的制备
将粉料加入质量分数0.5%的聚丙烯酸钠水溶液中,搅拌均匀,粉料和聚丙烯酸钠水溶液的重量比为1:8-10;
(3)玻璃棉的处理
将玻璃棉浸泡置于浸泡液中,浸泡20-30min后,取出,晾干,即可。
2.根据权利要求1所述的柔韧性电弧炉密封保温材料的制备方法,其特征在于,包括以下步骤:
(1)粉料的制备
将重量百分比90%硅粉、重量百分比6%锆英粉、重量百分比4%纯碱混合均匀;
(2)浸泡液的制备
将粉料加入质量分数0.5%的聚丙烯酸钠水溶液中,搅拌均匀,粉料和聚丙烯酸钠水溶液的重量比为1:9;
(3)玻璃棉的处理
将玻璃棉浸泡置于浸泡液中,浸泡25min后,取出,晾干,即可。
3.根据权利要求1或2所述的柔韧性电弧炉密封保温材料的制备方法,其特征在于,所述的硅粉和锆英粉的粒径≥200目。
4.根据权利要求1或2所述的柔韧性电弧炉密封保温材料的制备方法,其特征在于,所述玻璃棉的厚度为20mm。
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