Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Acid-corrosion-resistant high-strength combined block for furnace lining of circulating fluidized bed boiler
The invention relates to an acid-corrosion-resistant high-strength combined block for a furnace lining of a circulating fluidized bed boiler, and effectively solves the problems of difficulty in sintering, poor acid corrosion resistance and wear resistance, easiness in cracking, difficulty in construction, easiness in cracking at brickwork joints and difficulty in maintenance after cracking in theuse process of a conventional castable for a furnace lining of a circulating fluidized bed boiler. The combined block comprises the main components: 30-50 parts of compact aluminum oxide, 5-10 partsof kyanite, 10-20 parts of flint clay, 5-8 parts of activated alpha alumina micro powder, 3-5 parts of zirconite powder, 5-10 parts of silicon carbide powder, 3-5 parts of silicon nitride powder, 2-5parts of pure calcium aluminate cement, 1 part of wear-resistant steel fibers, 0.5-1 part of a special additive B and phosphate as a binding additive. According to the invention, combined bricks are combined and buckled, and dismounting blocks and inlaying bodies are arranged, so that the problems that the lining of the existing fluidized bed boiler is difficult to construct, cracks are easily generated at brick joints, and the lining is difficult to maintain after cracking are effectively solved, the cost is low, and the practicability is strong.
本发明涉及循环流化床锅炉炉衬用抗酸蚀高强组合块，有效的解决了现有流化床锅炉内衬浇注料在使用过程中不易烧结，抗酸蚀性、耐磨性差，易开裂，施工不易、砖缝处易产生裂缝、开裂后维修不易的问题；其主要成分包括致密氧化铝30‑50份，蓝晶石5‑10份，焦宝石10‑20份，活性a氧化铝微粉5‑8份，锆英石粉3‑5份，碳化硅粉5‑10份，氮化硅粉3‑5份，纯铝酸钙水泥2‑5份，耐磨钢纤维1份，特殊添加剂B 0.5‑1份，磷酸盐作为结合添加剂；本发明采用组合拼扣式的组合砖，并设置拆除块和镶嵌体，有效的解决了现有流化床锅炉内衬施工不易、砖缝处易产生裂缝、开裂后维修不易的问题，成本低廉，实用性强。
Acid-corrosion-resistant high-strength combined block for furnace lining of circulating fluidized bed boiler
The invention relates to an acid-corrosion-resistant high-strength combined block for a furnace lining of a circulating fluidized bed boiler, and effectively solves the problems of difficulty in sintering, poor acid corrosion resistance and wear resistance, easiness in cracking, difficulty in construction, easiness in cracking at brickwork joints and difficulty in maintenance after cracking in theuse process of a conventional castable for a furnace lining of a circulating fluidized bed boiler. The combined block comprises the main components: 30-50 parts of compact aluminum oxide, 5-10 partsof kyanite, 10-20 parts of flint clay, 5-8 parts of activated alpha alumina micro powder, 3-5 parts of zirconite powder, 5-10 parts of silicon carbide powder, 3-5 parts of silicon nitride powder, 2-5parts of pure calcium aluminate cement, 1 part of wear-resistant steel fibers, 0.5-1 part of a special additive B and phosphate as a binding additive. According to the invention, combined bricks are combined and buckled, and dismounting blocks and inlaying bodies are arranged, so that the problems that the lining of the existing fluidized bed boiler is difficult to construct, cracks are easily generated at brick joints, and the lining is difficult to maintain after cracking are effectively solved, the cost is low, and the practicability is strong.
本发明涉及循环流化床锅炉炉衬用抗酸蚀高强组合块，有效的解决了现有流化床锅炉内衬浇注料在使用过程中不易烧结，抗酸蚀性、耐磨性差，易开裂，施工不易、砖缝处易产生裂缝、开裂后维修不易的问题；其主要成分包括致密氧化铝30‑50份，蓝晶石5‑10份，焦宝石10‑20份，活性a氧化铝微粉5‑8份，锆英石粉3‑5份，碳化硅粉5‑10份，氮化硅粉3‑5份，纯铝酸钙水泥2‑5份，耐磨钢纤维1份，特殊添加剂B 0.5‑1份，磷酸盐作为结合添加剂；本发明采用组合拼扣式的组合砖，并设置拆除块和镶嵌体，有效的解决了现有流化床锅炉内衬施工不易、砖缝处易产生裂缝、开裂后维修不易的问题，成本低廉，实用性强。
Acid-corrosion-resistant high-strength combined block for furnace lining of circulating fluidized bed boiler
循环流化床锅炉炉衬用抗酸蚀高强组合块
LI HUIDONG (Autor:in)
08.05.2020
Patent
Elektronische Ressource
Chinesisch
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