Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Harmless resourceful treatment method for barium slag and prepared building material
The invention relates to a barium slag harmless resourceful treatment method and a prepared building material.The method comprises the steps that a proper amount of oxidizing agent, ferrous sulfate, magnesium sulfate and dispersing agent are dissolved with water, and a stabilizer solution is obtained; adding a proper amount of barium slag, medium-coarse sand and quick lime into an edge runner mill, adding the stabilizer solution into the edge runner mill, supplementing a proper amount of water, and uniformly mixing to obtain a first mixture; adding a proper amount of sodium hydroxide, fly ash, gypsum, cement and magnesium oxide into the first mixture, and continuing mixing to obtain a second mixture; and carrying out vibration compression molding on the second mixture, and preserving moisture and curing to obtain the barium residue building material. According to the method, wheel rolling equipment is utilized, harmlessness and recycling of the barium slag are carried out in the same equipment step by step, excessive soluble sulfate is utilized step by step to fix barium, meanwhile, magnesium oxide is added later to eliminate the influence of soluble magnesium sulfate on the performance of the building material, and the barium ion leaching toxicity of the obtained barium slag building material is low and is as low as about 0.3 mg/L.
本申请涉及一种钡渣无害化资源化处理方法及制备的建筑材料，该方法包括：将适量氧化剂、硫酸亚铁、硫酸镁、分散剂用水溶解，得到稳定剂溶液；将适量钡渣、中粗砂、生石灰加入轮碾机，将稳定剂溶液加入轮碾机中，补适量水，混练均匀，得到第一混合料；将适量氢氧化钠、粉煤灰、石膏、水泥、氧化镁加入所述第一混合料中继续混练，得到第二混合料；将第二混合料振压成型，保湿养护后即得钡渣建筑材料。该方法利用轮碾设备，将钡渣无害化与资源化在同一设备中分步进行，分步利用了过量的可溶性硫酸盐固定钡，同时后面加入氧化镁消除了可溶性硫酸镁对建材性能的影响，所得钡渣建筑材料的钡离子浸出毒性低，最低低至0.3mg/L左右。
Harmless resourceful treatment method for barium slag and prepared building material
The invention relates to a barium slag harmless resourceful treatment method and a prepared building material.The method comprises the steps that a proper amount of oxidizing agent, ferrous sulfate, magnesium sulfate and dispersing agent are dissolved with water, and a stabilizer solution is obtained; adding a proper amount of barium slag, medium-coarse sand and quick lime into an edge runner mill, adding the stabilizer solution into the edge runner mill, supplementing a proper amount of water, and uniformly mixing to obtain a first mixture; adding a proper amount of sodium hydroxide, fly ash, gypsum, cement and magnesium oxide into the first mixture, and continuing mixing to obtain a second mixture; and carrying out vibration compression molding on the second mixture, and preserving moisture and curing to obtain the barium residue building material. According to the method, wheel rolling equipment is utilized, harmlessness and recycling of the barium slag are carried out in the same equipment step by step, excessive soluble sulfate is utilized step by step to fix barium, meanwhile, magnesium oxide is added later to eliminate the influence of soluble magnesium sulfate on the performance of the building material, and the barium ion leaching toxicity of the obtained barium slag building material is low and is as low as about 0.3 mg/L.
本申请涉及一种钡渣无害化资源化处理方法及制备的建筑材料，该方法包括：将适量氧化剂、硫酸亚铁、硫酸镁、分散剂用水溶解，得到稳定剂溶液；将适量钡渣、中粗砂、生石灰加入轮碾机，将稳定剂溶液加入轮碾机中，补适量水，混练均匀，得到第一混合料；将适量氢氧化钠、粉煤灰、石膏、水泥、氧化镁加入所述第一混合料中继续混练，得到第二混合料；将第二混合料振压成型，保湿养护后即得钡渣建筑材料。该方法利用轮碾设备，将钡渣无害化与资源化在同一设备中分步进行，分步利用了过量的可溶性硫酸盐固定钡，同时后面加入氧化镁消除了可溶性硫酸镁对建材性能的影响，所得钡渣建筑材料的钡离子浸出毒性低，最低低至0.3mg/L左右。
Harmless resourceful treatment method for barium slag and prepared building material
一种钡渣无害化资源化处理方法及制备的建筑材料
ZHANG ZHIYUAN (Autor:in) / ZHANG FUSHEN (Autor:in)
15.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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