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Preparation method of efficient thermal insulation material for accident fault-tolerant steel ladle metallurgy
The invention discloses a preparation method of an efficient thermal insulation material for accident fault-tolerant steel ladle metallurgy, and relates to the technical field of refractory materials. The thermal insulation material takes fused quartz with high melting point and low thermal conductivity as a main phase, aluminum silicate fiber as a reinforcing phase, aluminum silica sol as a binding agent, silicon carbide as an opacifying agent and starch as an additive. The raw materials are accurately weighed according to a certain proportion and put into a pulping machine to be made into cotton pulp, a plate blank is made through a vacuum forming machine, and the novel heat insulation material with a certain shape can be obtained after drying. The prepared material has the biggest characteristics that the safe use temperature is higher than the temperature of molten steel, and meanwhile, the material is relatively high in strength and relatively low in thermal conductivity and can play a positive role in preventing molten steel leakage. When a local leak occurs in a working layer of the steel ladle, the heat insulation material cannot be melted or crushed by molten steel to cause the accident of'ladle penetration and ladle leakage ', so that the accident of molten steel leakage is prevented to a certain extent, and an opportunity is won for steel ladle maintenance after the molten steel is poured.
本发明公开了一种事故容错型钢包冶金用高效隔热材料的制备方法，涉及耐火材料技术领域。该隔热材料由高熔点、低热导率的熔融石英为主相，硅酸铝纤维为增强相，铝硅溶胶为结合剂，碳化硅为遮光剂,淀粉为添加剂；按一定比例准确称量原料，放入制浆机中制成棉浆，采用真空成型机制成板坯，烘干后即可得到一定形状的新型隔热材料。本发明所制备材料的最大特点是：安全使用温度高于钢水的温度，同时其强度较高、热导较低，能对预防钢液渗漏起到积极作用。在钢包工作层出现局部漏洞时，该保温材料不会被钢液熔化或压碎而出现“穿包漏包”事故，一定程度上预防钢液泄露事故的发生，为浇注钢水后的钢包检修争取机会。
Preparation method of efficient thermal insulation material for accident fault-tolerant steel ladle metallurgy
The invention discloses a preparation method of an efficient thermal insulation material for accident fault-tolerant steel ladle metallurgy, and relates to the technical field of refractory materials. The thermal insulation material takes fused quartz with high melting point and low thermal conductivity as a main phase, aluminum silicate fiber as a reinforcing phase, aluminum silica sol as a binding agent, silicon carbide as an opacifying agent and starch as an additive. The raw materials are accurately weighed according to a certain proportion and put into a pulping machine to be made into cotton pulp, a plate blank is made through a vacuum forming machine, and the novel heat insulation material with a certain shape can be obtained after drying. The prepared material has the biggest characteristics that the safe use temperature is higher than the temperature of molten steel, and meanwhile, the material is relatively high in strength and relatively low in thermal conductivity and can play a positive role in preventing molten steel leakage. When a local leak occurs in a working layer of the steel ladle, the heat insulation material cannot be melted or crushed by molten steel to cause the accident of'ladle penetration and ladle leakage ', so that the accident of molten steel leakage is prevented to a certain extent, and an opportunity is won for steel ladle maintenance after the molten steel is poured.
本发明公开了一种事故容错型钢包冶金用高效隔热材料的制备方法，涉及耐火材料技术领域。该隔热材料由高熔点、低热导率的熔融石英为主相，硅酸铝纤维为增强相，铝硅溶胶为结合剂，碳化硅为遮光剂,淀粉为添加剂；按一定比例准确称量原料，放入制浆机中制成棉浆，采用真空成型机制成板坯，烘干后即可得到一定形状的新型隔热材料。本发明所制备材料的最大特点是：安全使用温度高于钢水的温度，同时其强度较高、热导较低，能对预防钢液渗漏起到积极作用。在钢包工作层出现局部漏洞时，该保温材料不会被钢液熔化或压碎而出现“穿包漏包”事故，一定程度上预防钢液泄露事故的发生，为浇注钢水后的钢包检修争取机会。
Preparation method of efficient thermal insulation material for accident fault-tolerant steel ladle metallurgy
一种事故容错型钢包冶金用高效隔热材料的制备方法
WANG GANG (author) / LIANG PENGPENG (author) / LI HONGXIA (author) / YANG WENGANG (author) / MA WEIKUI (author)
2022-07-29
Patent
Electronic Resource
Chinese
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