High-strength ceramsite and preparation process thereof

• Main Authors: WU XINJUN, QIU YILE, KONG ZUOFAN, CHAI WENBIN, QIAN WENFEI, YAN JUN, ZHOU HAIYANG, CHEN FENG
• Format: Patent
• Language: Chinese; English
• Published: 15.06.2021
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention discloses a high-strength ceramsite and a preparation process thereof. Wet mud powder obtained after filter pressing of mud and powder generated in the gravel aggregate processing process is directly used as a main raw material, small amounts of a pore-forming agent and a fluxing agent are added, kneading, granulation, preheating and high-temperature roasting are carried out to prepare the artificial light bone ceramsite, and the ceramsite is spherical and subsphaeroidal, is hard in skin, and fully filled with fine pores. The prepared ceramsite is high in density, high in strength, low in heat conductivity coefficient, high in refractoriness, good in chemical stability and non-toxic and harmless, the problem that aggregate processing garbage is difficult to treat can be solved, waste is turned into wealth, and good social benefits and environmental protection benefits are achieved. 本发明公开了一种高强度陶粒及制备工艺，直接利用砂石骨料加工过程中产生的泥、粉压滤后的湿泥粉为主要原料，添加少量的成孔剂及助熔剂，经捏合、造粒、预热、高温焙烧而制成的一种人造轻骨陶粒，所得陶粒为球形、近球形，表皮坚硬，内部充满细小气