Mixing and granulating process and system suitable for sticky and wet materials

• Main Authors: DONG TAO, XIE ZHIYING, WANG WENQIAN, HAN HUI, LI YINGHUI, SUN WENJIE, FAN QINGSHUAI, GUO HONGFENG, WU XILIN
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2024
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; PERFORMING OPERATIONS; PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL,e.g. PLASTER; REFRACTORIES; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; SLAG; TRANSPORTING; TREATMENT OF NATURAL STONE; WORKING CEMENT, CLAY, OR STONE

The invention discloses a mixing and granulating process and system suitable for viscous and wet materials, and the mixing and granulating process comprises the following steps: step 1, weighing powder materials such as ground oil sludge and/or pyrolysis slag, fly ash and bentonite according to a proportioning ratio, then feeding the powder materials into a first-stage double-shaft stirrer for stirring, adding water in stages until the water content of a raw material is 8-15%, and stirring for 15-25 times per minute, the ceramsite semi-dry raw material is obtained; step 2, feeding the semi-dry ceramsite raw material into a second-stage double-shaft stirrer for stirring, adding water in stages until the water content of the raw material is 18-25%, and stirring at the stirring speed of 5-15 times per minute to obtain a ceramsite raw material; 3, the ceramsite raw material is granulated, the granulation size is controlled to be 5-15 mm in diameter, and pellets are obtained; and 4, shaping the pellets, and contro