CN106892672A - 利用钼矿尾矿干法制备陶瓷保温板的方法 - Google Patents
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Abstract
本发明涉及利用钼矿尾矿干法制备陶瓷保温板的方法,其包括以下步骤:(1)将60~70质量份的钼矿尾矿、5~10质量份的高岭土、0~5质量份的石英、10~15质量份的助熔剂、2~3质量份的成孔剂按比例混合得到混合料;(2)将混合料置于雷蒙机粉碎得到混合粉体;(3)将混合粉体用v型混合机或滚筒混料机混合均匀后得到混合粉料,待用;(4)混合后的粉料陈腐12~36小时后,用布料机在模具内布料;(5)将模具放置于辊道窑或隧道窑中进行烧成,烧成结束后即可到发泡陶瓷;(6)将发泡陶瓷切割后即得到陶瓷保温板。
Description
技术领域
本发明涉及利用钼矿尾矿干法制备陶瓷保温板的方法,属于材料科学与工程领域。
背景技术
钼矿尾矿主要处理方式是堆放、填埋和综合利用,其中堆放或填埋既占用了耕地,又污染了环境。因此对钼矿尾矿的综合利用符合建设节约型社会的需求。
另一方面,在我国现有的建筑保温系统中有机保温材料诱发的火灾在我国时有发生,给人民生命和财产造成极大损失。无机保温材料由于种种缺陷限制了使用。
因此利用钼矿尾矿研制一种使用缺陷少的陶瓷保温板对于外墙外保温体系十分必要。
中国专利文献CN101182232A公开了一种利用抛光砖废料生产轻质陶瓷砖的方法,轻质砖是由抛光砖废料、废粉料、增强剂等混合,经喷雾造粒后压制、烧成。但是这种生产方法生产的产品由于使用了大量的抛光砖废料,在没有抛光砖废料的地区不能进行规模化生产,且产品必须经过后期磨边等冷加工处理。
中国专利文献CN01108123公开了一种轻质发泡陶瓷装饰砖及其制造方法,装饰砖是由陶瓷坯料、发泡剂、骨架料均混物压制品的烧成物,其中陶瓷坯料和发泡剂构成装饰砖的细粉基料。这种方法生产的产品成本较高,且生产过程不易控制。
中国专利文献CN103253961A公开了一种利用发泡陶瓷材料及其制备方法,发泡材料是由铅锌尾矿45-70%,抛光砖废料28-52%,发泡剂0.5-3%组成的烧成物。这种生产方法同样由于使用了大量的抛光砖废料,在没有抛光砖生产的地区不能大规模生产。
发明内容
发明目的:本发明针对上述现有技术存在的问题做出改进,即本发明公开了一种利用钼矿尾矿干法制备陶瓷保温板的方法。
一种利用钼矿尾矿干法制备外墙陶瓷保温板:该外墙陶瓷保温板的特点是以钼矿尾矿为主要成分,引入必要的长石、玻璃粉等熔剂性成分和成孔剂组成。采用干法粉碎、混合、布料、进入辊道窑或隧道窑经高温(1170~1220℃)烧成后生产的具有体积密度小、导热系数低的外墙陶瓷保温板。
技术方案:利用钼矿尾矿干法制备陶瓷保温板的方法,包括以下步骤:
(1)配料
将60~70质量份的钼矿尾矿、5~10质量份的高岭土、0~5质量份的石英、10~15质量份的助熔剂、2~3质量份的成孔剂按比例混合,得到混合料;
(2)粉碎
将步骤(1)得到的混合料置于雷蒙机粉碎得到混合粉体,混合粉体细度控制在万孔筛余小于1wt%;
(3)混合
将步骤(2)得到的混合粉体用v型混合机或滚筒混料机混合均匀后得到混合粉料,待用;
(4)布料
混合后的粉料置于陈腐室内陈腐12~36小时后,用布料机在模具内布料,布料深度为模具深度的1/2~2/3;
(5)烧成:
将步骤(4)中的模具放置于辊道窑或隧道窑中进行烧成,烧成结束后即可到发泡陶瓷,其中烧成制度为:
(6)将步骤(5)得到的发泡陶瓷切割后即得到陶瓷保温板。
进一步地,步骤(1)中的助熔剂为长石粉或玻璃粉。
进一步地,步骤(1)中的成孔剂为碳化硅粉体。
更进一步地,碳化硅粉体的粒径为2~5微米。
进一步地,步骤(4)中,在模具中布料前,在模具四周和底部用耐火纸铺贴,耐火纸铺贴应平整,保证烧成后产品不粘模具。
有益效果:本发明公开的利用钼矿尾矿干法制备陶瓷保温板的方法具有以下有益效果:
(1)采取了流水化的生产工艺,产品的生产过程容易控制,产品合格率高;
(2)本发明的产品,体积密度小(≤0.35g/cm3),导热系数低(≤0.1w/m.k),有利于减轻建筑物的承重且由于是陶瓷产品具有防火效果;
(3)产品经后期加工后,可以满足不同地区气候条件的要求。
具体实施方式:
下面对本发明的具体实施方式详细说明。
具体实施例1
利用钼矿尾矿干法制备陶瓷保温板的方法,包括以下步骤:
(1)配料
将60质量份的钼矿尾矿、10质量份的高岭土、10质量份的助熔剂、2质量份的成孔剂按比例混合,得到混合料;
(2)粉碎
将步骤(1)得到的混合料置于雷蒙机粉碎得到混合粉体,混合粉体细度控制在万孔筛余小于1wt%;
(3)混合
将步骤(2)得到的混合粉体用v型混合机混合均匀后得到混合粉料,待用;
(4)布料
混合后的粉料置于陈腐室内陈腐12小时后,用布料机在模具内布料,布料深度为模具深度的1/2;
(5)烧成:
将步骤(4)中的模具放置于隧道窑中进行烧成,烧成结束后即可到发泡陶瓷,其中烧成制度为:
(6)将步骤(5)得到的发泡陶瓷切割后即得到陶瓷保温板。
进一步地,步骤(1)中的助熔剂为长石粉。
进一步地,步骤(1)中的成孔剂为碳化硅粉体。
更进一步地,碳化硅粉体的粒径为2微米。
进一步地,步骤(4)中,在模具中布料前,在模具四周和底部用耐火纸铺贴,耐火纸铺贴应平整,保证烧成后产品不粘模具。
具体实施例2
利用钼矿尾矿干法制备陶瓷保温板的方法,包括以下步骤:
(1)配料
将70质量份的钼矿尾矿、5质量份的高岭土、5质量份的石英、15质量份的助熔剂、3质量份的成孔剂按比例混合,得到混合料;
(2)粉碎
将步骤(1)得到的混合料置于雷蒙机粉碎得到混合粉体,混合粉体细度控制在万孔筛余小于1wt%;
(3)混合
将步骤(2)得到的混合粉体用滚筒混料机混合均匀后得到混合粉料,待用;
(4)布料
混合后的粉料置于陈腐室内陈腐36小时后,用布料机在模具内布料,布料深度为模具深度的2/3;
(5)烧成:
将步骤(4)中的模具放置于辊道窑中进行烧成,烧成结束后即可到发泡陶瓷,其中烧成制度为:
(6)将步骤(5)得到的发泡陶瓷切割后即得到陶瓷保温板。
进一步地,步骤(1)中的助熔剂为玻璃粉。
进一步地,步骤(1)中的成孔剂为碳化硅粉体。
更进一步地,碳化硅粉体的粒径为5微米。
进一步地,步骤(4)中,在模具中布料前,在模具四周和底部用耐火纸铺贴,耐火纸铺贴应平整,保证烧成后产品不粘模具。
具体实施例3
利用钼矿尾矿干法制备陶瓷保温板的方法,包括以下步骤:
(1)配料
将65质量份的钼矿尾矿、7质量份的高岭土、3质量份的石英、12质量份的助熔剂、2.5质量份的成孔剂按比例混合,得到混合料;
(2)粉碎
将步骤(1)得到的混合料置于雷蒙机粉碎得到混合粉体,混合粉体细度控制在万孔筛余小于1wt%;
(3)混合
将步骤(2)得到的混合粉体用v型混合机混合均匀后得到混合粉料,待用;
(4)布料
混合后的粉料置于陈腐室内陈腐24小时后,用布料机在模具内布料,布料深度为模具深度的3/5;
(5)烧成:
将步骤(4)中的模具放置于辊道窑或隧道窑中进行烧成,烧成结束后即可到发泡陶瓷,其中烧成制度为:
(6)将步骤(5)得到的发泡陶瓷切割后即得到陶瓷保温板。
进一步地,步骤(1)中的助熔剂为玻璃粉。
进一步地,步骤(1)中的成孔剂为碳化硅粉体。
更进一步地,碳化硅粉体的粒径为4微米。
进一步地,步骤(4)中,在模具中布料前,在模具四周和底部用耐火纸铺贴,耐火纸铺贴应平整,保证烧成后产品不粘模具。
上面对本发明的实施方式做了详细说明。但是本发明并不限于上述实施方式,在所属技术领域普通技术人员所具备的知识范围内,还可以在不脱离本发明宗旨的前提下做出各种变化。
Claims (5)
1.利用钼矿尾矿干法制备陶瓷保温板的方法,其特征在于,包括以下步骤:
(1)配料
将60~70质量份的钼矿尾矿、5~10质量份的高岭土、0~5质量份的石英、10~15质量份的助熔剂、2~3质量份的成孔剂按比例混合,得到混合料;
(2)粉碎
将步骤(1)得到的混合料置于雷蒙机粉碎得到混合粉体,混合粉体细度控制在万孔筛余小于1wt%;
(3)混合
将步骤(2)得到的混合粉体用v型混合机或滚筒混料机混合均匀后得到混合粉料,待用;
(4)布料
混合后的粉料置于陈腐室内陈腐12~36小时后,用布料机在模具内布料,布料深度为模具深度的1/2~2/3;
(5)烧成:
将步骤(4)中的模具放置于辊道窑或隧道窑中进行烧成,烧成结束后即可到发泡陶瓷,其中烧成制度为:
(6)将步骤(5)得到的发泡陶瓷切割后即得到陶瓷保温板。
2.根据权利要求1所述的利用钼矿尾矿干法制备陶瓷保温板的方法,其特征在于,步骤(1)中的助熔剂为长石粉或玻璃粉。
3.根据权利要求1所述的利用钼矿尾矿干法制备陶瓷保温板的方法,其特征在于,步骤(1)中的成孔剂为碳化硅粉体。
4.根据权利要求3所述的利用钼矿尾矿干法制备陶瓷保温板的方法,其特征在于,碳化硅粉体的粒径为2~5微米。
5.根据权利要求1所述的利用钼矿尾矿干法制备陶瓷保温板的方法,其特征在于,步骤(4)中,在模具中布料前,在模具四周和底部用耐火纸铺贴,耐火纸铺贴应平整,保证烧成后产品不粘模具。
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CN109626829A (zh) * | 2019-02-15 | 2019-04-16 | 河北恒钏建筑材料股份有限公司 | 一种钼尾矿微晶发泡材料及其制备方法 |
CN110526683A (zh) * | 2019-08-28 | 2019-12-03 | 洛阳北玻硅巢技术有限公司 | 一种利用钽铌尾矿制备微晶复合发泡陶瓷保温板的方法 |
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CN109534849A (zh) * | 2019-01-17 | 2019-03-29 | 武汉理工大学 | 一种利用黄金尾矿制备发泡陶瓷保温板的方法 |
CN109626829A (zh) * | 2019-02-15 | 2019-04-16 | 河北恒钏建筑材料股份有限公司 | 一种钼尾矿微晶发泡材料及其制备方法 |
CN110526683A (zh) * | 2019-08-28 | 2019-12-03 | 洛阳北玻硅巢技术有限公司 | 一种利用钽铌尾矿制备微晶复合发泡陶瓷保温板的方法 |
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