Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Precise screening process and production equipment for aluminum environment-friendly stuffing sand
The invention discloses a precise screening process and production equipment of aluminum environment-friendly stuffing sand. The aluminum environment-friendly stuffing sand comprises the following chemical components in percentage by weight: greater than or equal to 65% of Al2O3, less than or equal to 25% of SiO2, less than or equal to 4.5% of Fe2O3, less than or equal to 3% of CaO + MgO, less than or equal to 0.5% of H2O and the balance of unavoidable impurities. The main component in the stuffing sand is Al2O3, [Al] in the molten steel cannot be reduced, and aluminum loss of the molten steel cannot be caused; the content of Fe2O3 and H2O is low, and oxygen pollution to molten steel is reduced; meanwhile, the content of SiO2 is reasonably controlled, and the melting point of the aluminum environment-friendly stuffing sand can be reduced. According to the precise screening process and production equipment for the aluminum environment-friendly stuffing sand, a reciprocating transmission structure is formed among the multiple transmission rods, so that sand is continuously overturned up and down, and the screening and grinding requirements are met.
本发明公开了一种铝质环保型引流砂的精密筛选工艺及生产设备，其化学成分以重量百分数计包括：Al2O3≥65％，SiO2≤25％，Fe2O3≤4.5％，CaO+MgO≤3％，H2O≤0.5％，其余为不可避免的杂质。引流砂中主要成分为Al2O3，不会还原钢水中的[Al]，不会造成钢水铝损；且Fe2O3和H2O含量少，降低对钢水的氧污染；同时，合理控制了SiO2含量，能够降低该铝质环保型引流砂的熔点。该铝质环保型引流砂的精密筛选工艺及生产设备，多个传动杆之间形成的往复传动结构，使沙料持续的上下颠覆，满足筛选及研磨的要求。
Precise screening process and production equipment for aluminum environment-friendly stuffing sand
The invention discloses a precise screening process and production equipment of aluminum environment-friendly stuffing sand. The aluminum environment-friendly stuffing sand comprises the following chemical components in percentage by weight: greater than or equal to 65% of Al2O3, less than or equal to 25% of SiO2, less than or equal to 4.5% of Fe2O3, less than or equal to 3% of CaO + MgO, less than or equal to 0.5% of H2O and the balance of unavoidable impurities. The main component in the stuffing sand is Al2O3, [Al] in the molten steel cannot be reduced, and aluminum loss of the molten steel cannot be caused; the content of Fe2O3 and H2O is low, and oxygen pollution to molten steel is reduced; meanwhile, the content of SiO2 is reasonably controlled, and the melting point of the aluminum environment-friendly stuffing sand can be reduced. According to the precise screening process and production equipment for the aluminum environment-friendly stuffing sand, a reciprocating transmission structure is formed among the multiple transmission rods, so that sand is continuously overturned up and down, and the screening and grinding requirements are met.
本发明公开了一种铝质环保型引流砂的精密筛选工艺及生产设备，其化学成分以重量百分数计包括：Al2O3≥65％，SiO2≤25％，Fe2O3≤4.5％，CaO+MgO≤3％，H2O≤0.5％，其余为不可避免的杂质。引流砂中主要成分为Al2O3，不会还原钢水中的[Al]，不会造成钢水铝损；且Fe2O3和H2O含量少，降低对钢水的氧污染；同时，合理控制了SiO2含量，能够降低该铝质环保型引流砂的熔点。该铝质环保型引流砂的精密筛选工艺及生产设备，多个传动杆之间形成的往复传动结构，使沙料持续的上下颠覆，满足筛选及研磨的要求。
Precise screening process and production equipment for aluminum environment-friendly stuffing sand
一种铝质环保型引流砂的精密筛选工艺及生产设备
WANG FUSHENG (Autor:in) / WU LIPING (Autor:in) / DING TAIQIANG (Autor:in)
04.07.2023
Patent
Elektronische Ressource
Chinesisch
Stuffing sand for clean steel production and preparation method thereof
| Europäisches Patentamt | 2021