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Pressure-resistant anorthite lightweight refractory material and preparation method thereof
The invention provides a pressure-resistant anorthite lightweight refractory material and a preparation method thereof. The preparation method comprises the steps of A) mixing 48-55wt% of coal gangue,3-6wt% of kyanite, 4.5-6.5wt% of pyrophyllite, 10-14.5wt% of refractory clay, 9.5-15.5wt% of calcium carbonate, 5-10wt% of high alumina cement and 3-8wt% of an auxiliary agent to obtain a castable, wherein the particle size of calcium carbonate is 550-650 meshes, the particle size of the refractory clay is 300-400 meshes, and the particle size of the high-alumina cement is 300-400 meshes; B) molding the castable by casting, demolding, and drying to obtain a dried green body; and C) firing the dried green body to obtain the pressure-resistant anorthite lightweight refractory material. According to the invention, grain composition is carried out, the wet blank strength is improved, and the wet blank qualification rate is improved by about 20%.
本发明提供了一种耐压型钙长石轻质耐火材料及其制备方法，包括以下步骤：A)将48～55wt％的煤矸石、3～6wt％的蓝晶石、4.5～6.5wt％的叶腊石、10～14.5wt％的耐火粘土、9.5～15.5wt％的碳酸钙、5～10wt％的高铝水泥和3～8wt％的助剂混合，得到浇注料；所述碳酸钙的粒径为550～650目，耐火粘土的粒径为300～400目，高铝水泥的粒径为300～400目；B)将浇注料浇注成型，脱模后进行干燥，得到干燥的坯体；C)将所述干燥的坯体进行烧制，得到耐压型钙长石轻质耐火材料。本发明进行颗粒级配，提升湿坯强度，提高湿坯合格率20％左右。
Pressure-resistant anorthite lightweight refractory material and preparation method thereof
The invention provides a pressure-resistant anorthite lightweight refractory material and a preparation method thereof. The preparation method comprises the steps of A) mixing 48-55wt% of coal gangue,3-6wt% of kyanite, 4.5-6.5wt% of pyrophyllite, 10-14.5wt% of refractory clay, 9.5-15.5wt% of calcium carbonate, 5-10wt% of high alumina cement and 3-8wt% of an auxiliary agent to obtain a castable, wherein the particle size of calcium carbonate is 550-650 meshes, the particle size of the refractory clay is 300-400 meshes, and the particle size of the high-alumina cement is 300-400 meshes; B) molding the castable by casting, demolding, and drying to obtain a dried green body; and C) firing the dried green body to obtain the pressure-resistant anorthite lightweight refractory material. According to the invention, grain composition is carried out, the wet blank strength is improved, and the wet blank qualification rate is improved by about 20%.
本发明提供了一种耐压型钙长石轻质耐火材料及其制备方法，包括以下步骤：A)将48～55wt％的煤矸石、3～6wt％的蓝晶石、4.5～6.5wt％的叶腊石、10～14.5wt％的耐火粘土、9.5～15.5wt％的碳酸钙、5～10wt％的高铝水泥和3～8wt％的助剂混合，得到浇注料；所述碳酸钙的粒径为550～650目，耐火粘土的粒径为300～400目，高铝水泥的粒径为300～400目；B)将浇注料浇注成型，脱模后进行干燥，得到干燥的坯体；C)将所述干燥的坯体进行烧制，得到耐压型钙长石轻质耐火材料。本发明进行颗粒级配，提升湿坯强度，提高湿坯合格率20％左右。
Pressure-resistant anorthite lightweight refractory material and preparation method thereof
一种耐压型钙长石轻质耐火材料及其制备方法
LIU CHAO (author) / GUO JINSHENG (author) / ZHANG CHENGJUAN (author) / TANG FENG (author)
2020-12-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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