Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-purity silicon carbide lining for fluidized bed reactor
The invention provides a preparation method of a high-purity silicon carbide lining for a fluidized bed reactor, which comprises the following steps: S1, introducing a designed ceramic model into 3D printing equipment, and forming silicon carbide powder into a biscuit with a required size layer by layer by adopting a 3D printing forming technology; s2, placing the biscuit in a graphite crucible, stacking a silicon raw material required by reactive sintering around the biscuit, performing reactive sintering in sintering equipment, and cooling to obtain a green body; s3, the blank is placed in a purification furnace for purification treatment, and the silicon carbide material lining part is obtained; and S4, sequentially splicing a plurality of lining pieces to obtain the fluidized bed reactor lining. The problem that a large-size multi-curved-surface runner structure is difficult to form is solved, meanwhile, the problem that the purity of silicon carbide ceramic is difficult to improve is solved, the obtained silicon carbide material lining piece has the advantages of being high in purity, resistant to abrasion and corrosion and high in strength, and the application requirement of a high-purity polycrystalline silicon fluidized bed reactor lining is met.
本发明提供了一种用于流化床反应器的高纯碳化硅内衬的制备方法，包括以下步骤：S1、将设计的陶瓷模型导入3D打印设备中，采用3D打印成型技术将碳化硅粉料逐层成型出所需尺寸的素坯；S2、将所述素坯放置于石墨坩埚中，在素坯周围堆放反应烧结所需的硅原料，在烧结设备中进行反应烧结，冷却得到坯体；S3、将所述坯体置于纯化炉中进行纯化处理，得到碳化硅材料内衬件；S4、将多个内衬件依次拼装得到流化床反应器内衬。本发明突破了大尺寸、多曲面流道结构难以成型的难题，同时解决了碳化硅陶瓷纯度难以提高的问题，得到碳化硅材料内衬件具有高纯度、耐磨损、耐腐蚀、强度高的优点，满足高纯多晶硅流化床反应器内衬的应用需求。
Preparation method of high-purity silicon carbide lining for fluidized bed reactor
The invention provides a preparation method of a high-purity silicon carbide lining for a fluidized bed reactor, which comprises the following steps: S1, introducing a designed ceramic model into 3D printing equipment, and forming silicon carbide powder into a biscuit with a required size layer by layer by adopting a 3D printing forming technology; s2, placing the biscuit in a graphite crucible, stacking a silicon raw material required by reactive sintering around the biscuit, performing reactive sintering in sintering equipment, and cooling to obtain a green body; s3, the blank is placed in a purification furnace for purification treatment, and the silicon carbide material lining part is obtained; and S4, sequentially splicing a plurality of lining pieces to obtain the fluidized bed reactor lining. The problem that a large-size multi-curved-surface runner structure is difficult to form is solved, meanwhile, the problem that the purity of silicon carbide ceramic is difficult to improve is solved, the obtained silicon carbide material lining piece has the advantages of being high in purity, resistant to abrasion and corrosion and high in strength, and the application requirement of a high-purity polycrystalline silicon fluidized bed reactor lining is met.
本发明提供了一种用于流化床反应器的高纯碳化硅内衬的制备方法，包括以下步骤：S1、将设计的陶瓷模型导入3D打印设备中，采用3D打印成型技术将碳化硅粉料逐层成型出所需尺寸的素坯；S2、将所述素坯放置于石墨坩埚中，在素坯周围堆放反应烧结所需的硅原料，在烧结设备中进行反应烧结，冷却得到坯体；S3、将所述坯体置于纯化炉中进行纯化处理，得到碳化硅材料内衬件；S4、将多个内衬件依次拼装得到流化床反应器内衬。本发明突破了大尺寸、多曲面流道结构难以成型的难题，同时解决了碳化硅陶瓷纯度难以提高的问题，得到碳化硅材料内衬件具有高纯度、耐磨损、耐腐蚀、强度高的优点，满足高纯多晶硅流化床反应器内衬的应用需求。
Preparation method of high-purity silicon carbide lining for fluidized bed reactor
一种用于流化床反应器的高纯碳化硅内衬的制备方法
XIONG LIJUN (Autor:in) / SHEN YUN (Autor:in) / WU YANJIAO (Autor:in) / XU BIN (Autor:in) / ZHANG BIYING (Autor:in) / WANG JIAN (Autor:in) / WANG WENHUA (Autor:in) / GU JIAQI (Autor:in) / YANG LIANJIANG (Autor:in) / WU GUOPING (Autor:in)
30.12.2022
Patent
Elektronische Ressource
Chinesisch
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