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A platform for research: civil engineering, architecture and urbanism
Solid-phase foamed fly ash unfired ceramsite and preparation method thereof
The invention relates to the technical field of preparation of unfired ceramsite, in particular to solid-phase foamed fly ash unfired ceramsite and a preparation method, the solid-phase foamed fly ashunfired ceramsite is prepared by adding water into raw materials including: fly ash, starch, calcium oxide, desulfurized gypsum and sodium perborate for granulation. The preparation method is simple,wherein high-temperature calcination is not needed in the preparation process, energy is saved, and the environment is protected; pores can be formed in the ceramsite and in the surface of the ceramsite in a solid phase state in a unique efficient foaming process, so that the obtained ceramsite product has high porosity, water and fertilizer retention can be effectively realized, and the stackingdensity of the ceramsite is also reduced; residual sodium borate after decomposition of the foaming agent sodium perborate can be used as a plant to provide trace elements such as boron; therefore, on one hand, the starch contained in the material can improve the microbial affinity of the material, and on the other hand, the starch can release a small amount of pores after being degraded in the environment, so that the porosity of the material is improved.
本发明涉及免烧陶粒制备技术领域，更具体而言，涉及一种固相发泡粉煤灰免烧陶粒及制备方法，由原料粉煤灰、淀粉、氧化钙、脱硫石膏、过硼酸钠加水造粒制得，工艺简单，制备过程不需要进行高温煅烧，节能环保；独有的高效发泡过程可以在固相状态下在陶粒内部及表面造孔，使得得到的陶粒产品具有高孔隙率，可有效地实现保水保肥，也降低了陶粒的堆积密度；发泡剂过硼酸钠分解后残留的硼酸钠可作为植物提供硼等微量元素；材料中包含的淀粉一方面可以提高材料的微生物亲和性，另一方面，淀粉在环境中降解后也可以释放出少量的孔隙，提高材料的孔隙率。
Solid-phase foamed fly ash unfired ceramsite and preparation method thereof
The invention relates to the technical field of preparation of unfired ceramsite, in particular to solid-phase foamed fly ash unfired ceramsite and a preparation method, the solid-phase foamed fly ashunfired ceramsite is prepared by adding water into raw materials including: fly ash, starch, calcium oxide, desulfurized gypsum and sodium perborate for granulation. The preparation method is simple,wherein high-temperature calcination is not needed in the preparation process, energy is saved, and the environment is protected; pores can be formed in the ceramsite and in the surface of the ceramsite in a solid phase state in a unique efficient foaming process, so that the obtained ceramsite product has high porosity, water and fertilizer retention can be effectively realized, and the stackingdensity of the ceramsite is also reduced; residual sodium borate after decomposition of the foaming agent sodium perborate can be used as a plant to provide trace elements such as boron; therefore, on one hand, the starch contained in the material can improve the microbial affinity of the material, and on the other hand, the starch can release a small amount of pores after being degraded in the environment, so that the porosity of the material is improved.
本发明涉及免烧陶粒制备技术领域，更具体而言，涉及一种固相发泡粉煤灰免烧陶粒及制备方法，由原料粉煤灰、淀粉、氧化钙、脱硫石膏、过硼酸钠加水造粒制得，工艺简单，制备过程不需要进行高温煅烧，节能环保；独有的高效发泡过程可以在固相状态下在陶粒内部及表面造孔，使得得到的陶粒产品具有高孔隙率，可有效地实现保水保肥，也降低了陶粒的堆积密度；发泡剂过硼酸钠分解后残留的硼酸钠可作为植物提供硼等微量元素；材料中包含的淀粉一方面可以提高材料的微生物亲和性，另一方面，淀粉在环境中降解后也可以释放出少量的孔隙，提高材料的孔隙率。
Solid-phase foamed fly ash unfired ceramsite and preparation method thereof
一种固相发泡粉煤灰免烧陶粒及制备方法
FENG ZHENGJUN (author) / FAN BIAO (author) / JIA YANGJIE (author) / SONG HUIPING (author) / CHENG FANGQIN (author)
2020-09-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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