CN113880604A - 一种采用煤矸石制备陶瓷蓄热材料的制备方法 - Google Patents
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Abstract
本发明提供一种采用煤矸石制备陶瓷蓄热材料的制备方法,属于蓄热材料技术领域,包括以下制备步骤:原料准备、配料、制泥、练泥、陈腐、挤出成型、微波定型、干燥及烧成;本发明的原料为煤矸石中的白矸,成本低,制备步骤简洁,制备的蓄热材料可以应用在低谷电蓄热供热、钢厂余热回收、太阳能热利用领域,具有成本低、蓄热密度高、抗热冲击性能好、换热效果好的特点,可以实现500‑800℃的高温蓄热。
Description
技术领域
本发明涉及蓄热材料技术领域,尤其涉及一种采用煤矸石制备陶瓷蓄热材料的制备方法。
背景技术
蓄热材料是一种能够储存热能的新型化学材料。它在特定的温度( 如相变温度)下发生物相变化,并伴随着吸收或放出热量,可用来控制周围环境的温度,或用以储存热能。它把热量或冷量储存起来,在需要时再把它释放出来,从而提高了能源的利用率。
蓄热材料是蓄热技术的核心,目前有相变蓄热材料、合金蓄热材料、熔融盐蓄热材料等,各种蓄热材料各有优缺点,例如相变蓄热材料具有蓄、放热过程近似等温,过程容易控制等优点,但生产成本较高,其他的几种蓄热材料也都原料或生产成本较高的问题存在。
发明内容
有鉴于此,本发明提供一种采用煤矸石制备陶瓷蓄热材料的制备方法,以解决因生产成本高,不利于企业发展的技术问题。
为解决上述技术问题,本发明提供一种采用煤矸石制备陶瓷蓄热材料的制备方法,包括以下制备步骤:
S1、原料准备,将白矸分别破碎成120目,200目和325目,按照2:5:3的比例充分混合制得A粉,将高岭土在温度为70~90℃的环境下烘干24h,然后球磨成200目B粉,氧化铝采用325目,标为C粉,硅微粉选用600目,标为D粉;
S2、配料,将50~60份A粉,10~15份B粉,15~20份C粉,5~10份的D粉采用球磨机混合2h,制得混合料E粉;
S3、制泥,将300份的E粉,45~50份的水;0.5~1份的木质素磺酸钙;0.1~0.15份的聚乙烯醇;0.15份的聚丙烯酰胺;4.5份的羟丙基纤维素充分混合搅拌30~45min,制得泥料F;
S4、练泥,将泥料F采用真空练泥机将泥料反复练3~5遍,制得泥料G,真空度0.8~1MPa;
S5、陈腐,在温度20~25℃,湿度80~90%的密闭房间内将泥料G陈腐24~48h,制得泥料H;
S6、挤出成型,采用挤出成型机将泥料H挤出成用户需要的多孔结构;
S7、微波定型,挤出成型后的坯体进入微波定型设备中定型10~15分钟;
S8、干燥及烧成,将定型好的坯体送入100~120℃的干燥箱中进行干燥,干燥12-14h,然后将干燥好的坯体送入梭式窑或隧道窑中进行烧成,烧成温度为1350~1430℃,最高温保温2~3h,获得成品。
进一步地,S1中,高岭土的烘干温度为80℃。
进一步地,S3中,搅拌时间为35~45 min。
进一步地,S5中,密闭房间的湿度为85~90%。
进一步地,S6中,挤出的多空结构为蜂窝陶瓷结构。
进一步地,S8中,坯体的干燥时间为12h。
进一步地,S8中,坯体烧成温度为1360~1430℃。
与现有技术相比,本发明的有益技术效果在于:
1.本发明采用煤矸石中的白矸为主要原料,制备蜂窝体结构的蓄热材料,该材料具有成本低、热物理性能优良的特点,可以实现500-800℃的高温蓄热。
2.本发明制备的蓄热材料可以应用在低谷电蓄热供热、钢厂余热回收、太阳能热利用领域,具有成本低、蓄热密度高、抗热冲击性能好、换热效果好的特点。
具体实施方式
下面结合实施例来说明本发明的具体实施方式,但以下实施例只是用来详细说明本发明,并不以任何方式限制本发明的范围。在以下实施例中所涉及的仪器设备如无特别说明,均为常规仪器设备;所涉及的工业原料如无特别说明,均为市售常规工业原料;所涉及的加工制作方法,如无特别说明,均为常规方法。
实施例1:
一种采用煤矸石制备陶瓷蓄热材料的制备方法,包括以下制备步骤:
S1、原料准备,将白矸分别破碎成120目,200目和325目,按照2:5:3的比例充分混合制得A粉,将高岭土在温度为85℃的环境下烘干24h,然后球磨成200目B粉,氧化铝采用325目,标为C粉,硅微粉选用600目,标为D粉;
S2、配料,将55份A粉,10份B粉,18份C粉,10份的D粉采用球磨机混合2h,制得混合料E粉;
S3、制泥,将300份的E粉, 50份的水;1份的木质素磺酸钙;0.15份的聚乙烯醇;0.15份的聚丙烯酰胺;4.5份的羟丙基纤维素充分混合搅拌35min,制得泥料F;
S4、练泥,将泥料F采用真空练泥机将泥料反复练5遍,制得泥料G,真空度1MPa;
S5、陈腐,在温度25℃,湿度85%的密闭房间内将泥料G陈腐48h,制得泥料H;
S6、挤出成型,采用挤出成型机将泥料H挤出成蜂窝陶瓷结构;
S7、微波定型,挤出成型后的坯体进入微波定型设备中定型15分钟;
S8、干燥及烧成,将定型好的坯体送入100℃的干燥箱中进行干燥,干燥12h,然后将干燥好的坯体送入梭式窑或隧道窑中进行烧成,烧成温度为1400℃,最高温保温2.5h,获得成品。
实施例2:与实施例1的不同之处在于:
一种采用煤矸石制备陶瓷蓄热材料的制备方法,包括以下制备步骤:
S1、原料准备,将白矸分别破碎成120目,200目和325目,按照2:5:3的比例充分混合制得A粉,将高岭土在温度为90℃的环境下烘干24h,然后球磨成200目B粉,氧化铝采用325目,标为C粉,硅微粉选用600目,标为D粉;
S2、配料,将60份A粉,15份B粉,20份C粉,10份的D粉采用球磨机混合2h,制得混合料E粉;
S3、制泥,将300份的E粉, 50份的水;1份的木质素磺酸钙;0.15份的聚乙烯醇;0.15份的聚丙烯酰胺;4.5份的羟丙基纤维素充分混合搅拌40min,制得泥料F;
S4、练泥,将泥料F采用真空练泥机将泥料反复练5遍,制得泥料G,真空度1MPa;
S5、陈腐,在温度25℃,湿度90%的密闭房间内将泥料G陈腐45h,制得泥料H;
S6、挤出成型,采用挤出成型机将泥料H挤出成蜂窝陶瓷结构;
S7、微波定型,挤出成型后的坯体进入微波定型设备中定型15分钟;
S8、干燥及烧成,将定型好的坯体送入100℃的干燥箱中进行干燥,干燥12h,然后将干燥好的坯体送入梭式窑或隧道窑中进行烧成,烧成温度为1400℃,最高温保温2.5h,获得成品。
实施例3:与实施例1的不同之处在于:
一种采用煤矸石制备陶瓷蓄热材料的制备方法,包括以下制备步骤:
S1、原料准备,将白矸分别破碎成120目,200目和325目,按照2:5:3的比例充分混合制得A粉,将高岭土在温度为90℃的环境下烘干24h,然后球磨成200目B粉,氧化铝采用325目,标为C粉,硅微粉选用600目,标为D粉;
S2、配料,将50份A粉,10份B粉,15份C粉,5份的D粉采用球磨机混合2h,制得混合料E粉;
S3、制泥,将300份的E粉, 45份的水;0.5份的木质素磺酸钙;0.15份的聚乙烯醇;0.15份的聚丙烯酰胺;4.5份的羟丙基纤维素充分混合搅拌40min,制得泥料F;
S4、练泥,将泥料F采用真空练泥机将泥料反复练5遍,制得泥料G,真空度1MPa;
S5、陈腐,在温度25℃,湿度90%的密闭房间内将泥料G陈腐45h,制得泥料H;
S6、挤出成型,采用挤出成型机将泥料H挤出成蜂窝陶瓷结构;
S7、微波定型,挤出成型后的坯体进入微波定型设备中定型15分钟;
S8、干燥及烧成,将定型好的坯体送入120℃的干燥箱中进行干燥,干燥14h,然后将干燥好的坯体送入梭式窑或隧道窑中进行烧成,烧成温度为1380℃,最高温保温2.5h,获得成品。
以上所述是本发明的优选实施方式,应当指出,上面结合实施例对本发明作了详细的说明,但是,所属技术领域的技术人员能够理解,在不脱离本发明宗旨的前提下,还可以对上述实施例中的各个具体参数进行变更,形成多个具体的实施例,均为本发明的常见变化范围,在此不再一一详述。
Claims (7)
1.一种采用煤矸石制备陶瓷蓄热材料的制备方法,其特征在于,包括以下制备步骤:
S1、原料准备,将白矸分别破碎成120目,200目和325目,按照2:5:3的比例充分混合制得A粉,将高岭土在温度为70~90℃的环境下烘干24h,然后球磨成200目B粉,氧化铝采用325目,标为C粉,硅微粉选用600目,标为D粉;
S2、配料,将50~60份A粉,10~15份B粉,15~20份C粉,5~10份的D粉采用球磨机混合2h,制得混合料E粉;
S3、制泥,将300份的E粉,45~50份的水;0.5~1份的木质素磺酸钙;0.1~0.15份的聚乙烯醇;0.15份的聚丙烯酰胺;4.5份的羟丙基纤维素充分混合搅拌30~45min,制得泥料F;
S4、练泥,将泥料F采用真空练泥机将泥料反复练3~5遍,制得泥料G,真空度0.8~1MPa;
S5、陈腐,在温度20~25℃,湿度80~90%的密闭房间内将泥料G陈腐24~48h,制得泥料H;
S6、挤出成型,采用挤出成型机将泥料H挤出成用户需要的多孔结构;
S7、微波定型,挤出成型后的坯体进入微波定型设备中定型10~15分钟;
S8、干燥及烧成,将定型好的坯体送入100~120℃的干燥箱中进行干燥,干燥12-14h,然后将干燥好的坯体送入梭式窑或隧道窑中进行烧成,烧成温度为1350~1430℃,最高温保温2~3h,获得成品。
2.根据权利要求1所述的采用煤矸石制备陶瓷蓄热材料的制备方法,其特征在于,S1中,高岭土的烘干温度为80℃。
3.根据权利要求1所述的采用煤矸石制备陶瓷蓄热材料的制备方法,其特征在于,S3中,搅拌时间为35~45 min。
4.根据权利要求1所述的采用煤矸石制备陶瓷蓄热材料的制备方法,其特征在于,S5中,密闭房间的湿度为85~90%。
5.根据权利要求1所述的采用煤矸石制备陶瓷蓄热材料的制备方法,其特征在于,S6中,挤出的多空结构为蜂窝陶瓷结构。
6.根据权利要求1所述的采用煤矸石制备陶瓷蓄热材料的制备方法,其特征在于,S8中,坯体的干燥时间为12h。
7.根据权利要求1所述的采用煤矸石制备陶瓷蓄热材料的制备方法,其特征在于,S8中,坯体烧成温度为1360~1430℃。
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