CN110606730A - 一种效果佳的磷石膏煤渣陶粒及其制备方法 - Google Patents
一种效果佳的磷石膏煤渣陶粒及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种效果佳的磷石膏煤渣陶粒,其配方原料质量份数为:磷石膏10‑30份、铝矾土10‑20份、煤渣5‑15份、粘土5‑10份、橡籽粉1‑5份、二氧化硅5‑10份,氧化镁3‑8份,三氧化二铝3‑10份,三氧化二铁2‑6份和氧化钙5‑15份。本发明配方有助于改善颗粒在不同温度的致密性变化,有效的改善磷石膏煤渣陶粒的力学性能参数,使得体积密度和筒压强度得到均衡,实现降低体积密度的同时,提高筒压强度,并且结合磷石膏、煤渣、铝矾土的配比设计,使得磷石膏、煤渣、铝矾土中的有效成分相互作用,有效提高了磷石膏煤渣陶粒的综合性能。
Description
技术领域
本发明涉及磷石膏陶粒技术领域,尤其是一种效果佳的磷石膏煤渣陶粒及其制备方法。
背景技术
陶粒具有丰富的孔隙结构和较大的比表面积,能够被广泛应用于水处理领域作滤料,基于此,本研究者经过对陶粒进行制备,用作污水处理过程中,作为污水处理设备的填料,使得污水经过该填料后,能够实现对污水的过滤处理,提高污水排放的品质。
磷石膏是我国磷肥产业主要的固体废弃物,主要成分是二水石膏和半水石膏。据不完全统计,我国磷石膏年排放总量超过5500万吨干基量,累计堆存量为2.5亿吨。随着我国高浓度磷肥的发展,磷石膏的排放量将会越来越大,不仅造成了严重的环境污染,也成为磷化工行业可持续发展面临的重大问题。因此,对磷石膏进行有效处理,已经刻不容缓。
现有技术中,对于磷石膏处理方法较多,有将磷石膏进行处理,利用磷石膏中的硫元素,制备硫酸,并且为了降低能耗,提高效率,降低成本,有研究者对磷石膏进行研究,采用生物质原料,碳化稻壳等作为还原剂分解磷石膏,制备硫酸,如专利号为201110097225.X、201410095622.7等;但由于上述技术并未充分利用制备硫酸后的尾渣,导致磷石膏有效利用不彻底,依然使得大量的废渣残留,造成磷石膏利用量不大,无法达到有效利用,降低废弃物排放的目的,为此,有研究者对磷石膏进行分解制备硅钙质多孔陶粒和硫酸的方法,其将大量的磷石膏与碳化稻壳混合研磨成粉,并加入减水剂、水混合,加入发泡剂、结合剂制备泡沫泥浆,并将泡沫泥浆,混合细粉在糖衣机中造粒,制得预制粒,烘烤,催化分解而得。
可见,现有技术中,有研究者考虑将磷石膏或者磷石膏经过处理后的废渣用于制备陶粒的研究,如专利号为201510076865.0,201110163543.1,200610201129.4,201010249969.4等;但是,在直接采用磷石膏为原料制备陶粒的研究中,对于磷石膏均为添加料,即就是不以磷石膏为主要原料,使得对磷石膏的利用率不高;而对磷石膏经过分解制硫酸处理后,将废渣用于制备陶粒,该过程的工艺流程较长,能耗较大,成本较高。
除此之外,对于现有技术中,以磷石膏为主要原料制备的陶粒品质依然不理想,导致制备的陶粒各项性能参数较差。
基于此,本研究者经过对磷石膏制备陶粒的原料进行选择,采用磷石膏与煤渣共同作用,使得磷石膏与煤渣中的有效成分相互作用制备陶粒,使得陶粒的各项性能参数得到改善,提高了陶粒品质。
发明内容
为了解决现有技术中存在的上述技术问题,本发明提供一种磷石膏煤渣陶粒及其制备方法。
具体是通过以下技术方案得以实现的:
一种效果佳的磷石膏煤渣陶粒,其配方原料质量份数为:磷石膏10-30份、铝矾土10-20份、煤渣5-15份、粘土5-10份、橡籽粉1-5份、二氧化硅5-10份,氧化镁3-8份,三氧化二铝3-10份,三氧化二铁2-6份和氧化钙5-15份。
进一步的,所述的一种效果佳的磷石膏煤渣陶粒,其配方原料质量份数为:磷石膏20份、铝矾土15份、煤渣10份、粘土8份、橡籽粉3份、二氧化硅7份,氧化镁5份,三氧化二铝7份,三氧化二铁4份和氧化钙10份。
进一步的,所述的一种效果佳的磷石膏煤渣陶粒,其配方原料质量份数为:磷石膏30份、铝矾土20份、煤渣15份、粘土10份、橡籽粉5份、二氧化硅10份,氧化镁8份,三氧化二铝10份,三氧化二铁6份和氧化钙15份。
进一步的,一种效果佳的磷石膏煤渣陶粒及其制备方法,包括以下步骤:
(1)将磷石膏、煤渣、铝矾土、粘土和橡籽粉混合均匀后,按照水料质量比为0.1-0.8加水,搅拌均匀,得混合物料;
(2)将混合物料制备成5-30mm的颗粒,置于焙烧炉或者马沸炉中烧制,得到磷石膏煤渣陶粒。
上述的磷石膏煤渣陶粒制备方法,包括以下步骤:
(1)将磷石膏、煤渣、铝矾土混合均匀后,按照水料质量比为0.1-0.9加水,搅拌均匀,得混合物料;
(2)将混合物料制备成5-25mm的颗粒,置于焙烧炉或者马沸炉中烧制,得到磷石膏煤渣陶粒。
本发明的有益效果:本发明配方有助于改善颗粒在不同温度的致密性变化,有效的改善磷石膏煤渣陶粒的力学性能参数,使得体积密度和筒压强度得到均衡,实现降低体积密度的同时,提高筒压强度,并且结合磷石膏、煤渣、铝矾土的配比设计,使得磷石膏、煤渣、铝矾土中的有效成分相互作用,有效提高了磷石膏煤渣陶粒的综合性能。经过将磷石膏、煤渣、铝矾土进行恰当的配比,并结合制备过程中的工艺步骤限定,使得制备的磷石膏煤渣陶粒的体积密度达到了0.7~0.9g/cm3,筒压强度达到了8-10MPa。
具体实施方式
下面结合具体的实施例方式来对本发明的技术方案做进一步的限定,但要求保护的范围不仅局限于所作的描述。
实施例1
一种效果佳的磷石膏煤渣陶粒,其特征在于,其配方原料质量份数为:磷石膏10份、铝矾土10份、煤渣5份、粘土5份、橡籽粉1份、二氧化硅5份,氧化镁3份,三氧化二铝3份,三氧化二铁2份和氧化钙5份。
一种效果佳的磷石膏煤渣陶粒及其制备方法,其特征在于,包括以下步骤:
(1)将磷石膏、煤渣、铝矾土、粘土和橡籽粉混合均匀后,按照水料质量比为0.1-0.8加水,搅拌均匀,得混合物料;
(2)将混合物料制备成5-30mm的颗粒,置于焙烧炉或者马沸炉中烧制,得到磷石膏煤渣陶粒。
实施例2
一种效果佳的磷石膏煤渣陶粒,其特征在于,其配方原料质量份数为:磷石膏20份、铝矾土15份、煤渣10份、粘土8份、橡籽粉3份、二氧化硅7份,氧化镁5份,三氧化二铝7份,三氧化二铁4份和氧化钙10份。
一种效果佳的磷石膏煤渣陶粒及其制备方法,其特征在于,包括以下步骤:
(1)将磷石膏、煤渣、铝矾土、粘土和橡籽粉混合均匀后,按照水料质量比为0.1-0.8加水,搅拌均匀,得混合物料;
(2)将混合物料制备成5-30mm的颗粒,置于焙烧炉或者马沸炉中烧制,得到磷石膏煤渣陶粒。
实施例3
一种效果佳的磷石膏煤渣陶粒,其特征在于,其配方原料质量份数为:磷石膏30份、铝矾土20份、煤渣15份、粘土10份、橡籽粉5份、二氧化硅10份,氧化镁8份,三氧化二铝10份,三氧化二铁6份和氧化钙15份。
一种效果佳的磷石膏煤渣陶粒及其制备方法,其特征在于,包括以下步骤:
(1)将磷石膏、煤渣、铝矾土、粘土和橡籽粉混合均匀后,按照水料质量比为0.1-0.8加水,搅拌均匀,得混合物料;
(2)将混合物料制备成5-30mm的颗粒,置于焙烧炉或者马沸炉中烧制,得到磷石膏煤渣陶粒。
Claims (4)
1.一种效果佳的磷石膏煤渣陶粒,其特征在于,其配方原料质量份数为:磷石膏10-30份、铝矾土10-20份、煤渣5-15份、粘土5-10份、橡籽粉1-5份、二氧化硅5-10份,氧化镁3-8份,三氧化二铝3-10份,三氧化二铁2-6份和氧化钙5-15份。
2.根据权利要求1所述的一种效果佳的磷石膏煤渣陶粒,其特征在于,其配方原料质量份数为:磷石膏20份、铝矾土15份、煤渣10份、粘土8份、橡籽粉3份、二氧化硅7份,氧化镁5份,三氧化二铝7份,三氧化二铁4份和氧化钙10份。
3.根据权利要求1所述的一种效果佳的磷石膏煤渣陶粒,其特征在于,其配方原料质量份数为:磷石膏30份、铝矾土20份、煤渣15份、粘土10份、橡籽粉5份、二氧化硅10份,氧化镁8份,三氧化二铝10份,三氧化二铁6份和氧化钙15份。
4.根据权利要求1-3任一项所述的一种效果佳的磷石膏煤渣陶粒及其制备方法,其特征在于,包括以下步骤:
(1)将磷石膏、煤渣、铝矾土、粘土和橡籽粉混合均匀后,按照水料质量比为0.1-0.8加水,搅拌均匀,得混合物料;
(2)将混合物料制备成5-30mm的颗粒,置于焙烧炉或者马沸炉中烧制,得到磷石膏煤渣陶粒。
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CN115215678A (zh) * | 2022-05-19 | 2022-10-21 | 湖北省长江资源循环利用及装备创新中心有限公司 | 一种浮选磷石膏产物有机渣粘土轻质陶粒及其制备方法 |
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CN115215678A (zh) * | 2022-05-19 | 2022-10-21 | 湖北省长江资源循环利用及装备创新中心有限公司 | 一种浮选磷石膏产物有机渣粘土轻质陶粒及其制备方法 |
CN115215678B (zh) * | 2022-05-19 | 2023-07-25 | 湖北省长江资源循环利用及装备创新中心有限公司 | 一种浮选磷石膏产物有机渣粘土轻质陶粒及其制备方法 |
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