Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ceramsite sand for casting and preparation method thereof
The invention discloses ceramsite sand for casting and a preparation method thereof. The preparation method comprises the following steps: grinding and screening fly ash and bauxite powder to obtain fly ash mixed powder; adding slurry consisting of polyvinyl alcohol, sodium dodecyl benzene sulfonate, polyether silicone oil and water into the fly ash mixed powder, and grinding to obtain fly ash mixed slurry; centrifuging and drying the fly ash mixed slurry to obtain ceramsite sand green pellets; putting the ceramsite sand green pellets into a rotary kiln, sequentially sintering for 100 minutesat 500 DEG C, sintering for 2 hours at 1000 DEG C, sintering for 100 minutes at 1200 DEG C and sintering for 2 hours at 1300 DEG C, and then naturally cooling to obtain ceramsite sand balls. Accordingto the preparation method of the ceramsite sand for casting provided by the invention, the ceramsite sand prepared from the solid waste fly ash has the advantages of high roundness, good fluidity, controllable particle distribution, high strength and no dust in the preparation process.
本发明公开了一种铸造用陶粒砂及其制备方法，制备方法包括如下步骤：将粉煤灰和铝矾土粉料研磨、筛选获得粉煤灰混合粉料；将由聚乙烯醇、十二烷基苯磺酸钠、聚醚硅油和水组成的浆料加入到粉煤灰混合粉料中研磨获得粉煤灰混合浆料；将粉煤灰混合浆料离心、干燥获得得陶粒砂生胚球；将陶粒砂生胚球放入回转窑中依次在500℃下烧结100min、在1000℃下烧结2h、在1200℃下烧结100min、在1300℃下烧结2h，然后自然冷却获得陶粒砂的球体。本发明提供的一种铸造用陶粒砂的制备方法能够利用粉煤灰这种固体废弃物制备出陶粒砂具有圆度高、流动性好、颗粒分布可控、强度高和制备过程无粉尘的优点。
Ceramsite sand for casting and preparation method thereof
The invention discloses ceramsite sand for casting and a preparation method thereof. The preparation method comprises the following steps: grinding and screening fly ash and bauxite powder to obtain fly ash mixed powder; adding slurry consisting of polyvinyl alcohol, sodium dodecyl benzene sulfonate, polyether silicone oil and water into the fly ash mixed powder, and grinding to obtain fly ash mixed slurry; centrifuging and drying the fly ash mixed slurry to obtain ceramsite sand green pellets; putting the ceramsite sand green pellets into a rotary kiln, sequentially sintering for 100 minutesat 500 DEG C, sintering for 2 hours at 1000 DEG C, sintering for 100 minutes at 1200 DEG C and sintering for 2 hours at 1300 DEG C, and then naturally cooling to obtain ceramsite sand balls. Accordingto the preparation method of the ceramsite sand for casting provided by the invention, the ceramsite sand prepared from the solid waste fly ash has the advantages of high roundness, good fluidity, controllable particle distribution, high strength and no dust in the preparation process.
本发明公开了一种铸造用陶粒砂及其制备方法，制备方法包括如下步骤：将粉煤灰和铝矾土粉料研磨、筛选获得粉煤灰混合粉料；将由聚乙烯醇、十二烷基苯磺酸钠、聚醚硅油和水组成的浆料加入到粉煤灰混合粉料中研磨获得粉煤灰混合浆料；将粉煤灰混合浆料离心、干燥获得得陶粒砂生胚球；将陶粒砂生胚球放入回转窑中依次在500℃下烧结100min、在1000℃下烧结2h、在1200℃下烧结100min、在1300℃下烧结2h，然后自然冷却获得陶粒砂的球体。本发明提供的一种铸造用陶粒砂的制备方法能够利用粉煤灰这种固体废弃物制备出陶粒砂具有圆度高、流动性好、颗粒分布可控、强度高和制备过程无粉尘的优点。
Ceramsite sand for casting and preparation method thereof
一种铸造用陶粒砂及其制备方法
ZHANG LINJUN (Autor:in) / JI YUNDONG (Autor:in) / HAN ZHEN (Autor:in) / WANG ZUO (Autor:in) / YU YONGWEI (Autor:in) / CHEN BIYAN (Autor:in)
04.08.2020
Patent
Elektronische Ressource
Chinesisch
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