“第十二期耐火材料新知識講座”專家報告主要 The twelfth lecture on new knowledge of refractory materials

http://www.chinaqdzhenhua.com  "第十二期耐火材料新知識講座"6月8-10日在開封召開。河南、山東、遼寧、山西、浙江及貴州六省耐火材料行業協會有關負責人靳親國、劉偉、張國棟、李肇喜、姚令春、程念生輪流主持了會議，并分別簡要介紹了各省區耐火原材料的主要情況及當地政府圍繞節能減排、綠色發展而實施的有關政策，交流了有關經驗。會議主題為"耐火材料節能減排和鋁土礦開發應用技術交流座談會"。[br] [br] 　　李楠教授報告認為：礬土等鋁硅系材料的穩定性要求不僅僅包括它們的化學成分與體積密度，還應包括顆粒的粒度分布與表面質量。建議：原料與制品生產廠都應該關注顆粒尺寸分布，以保證定型與不定形耐火材料顯微結構的精確控制;鑒于生礦特性對熟料穩定性有極大影響，原料生產廠應根據礦源情況研究它對熟料顆粒組成的影響，政府有關部門對穩定原料生產廠礦源的穩定性要給予大力支持;球形骨料的引入也許是保證骨料尺寸穩定的一個有效方法，它對耐火材料的顯微結構及性能可能帶來重大影響，值得進一步研究。

http://www.chinaqdzhenhua.com "The Twelfth Lecture on New Knowledge of Refractories" was held in Kaifeng on June 8-10. Relevant persons in charge of the refractory industry associations in Henan, Shandong, Liaoning, Shanxi, Zhejiang and Guizhou Jin Jinuo, Liu Wei, Zhang Guodong, Li Zhaoxi, Yao Lingchun, Cheng Niansheng took turns to chair the meeting, and briefly introduced the main refractory raw materials in each province The situation and relevant policies implemented by the local government around energy conservation, emission reduction and green development, and exchanged relevant experiences. The theme of the conference was "Symposium on Energy-saving and Emission Reduction of Refractory Materials and Bauxite Development and Application Technology". [br] [br] Professor Li Nan reported that the stability requirements of aluminous materials such as alumina include not only their chemical composition and bulk density, but also their particle size distribution and surface quality. Recommendation: Raw material and product manufacturers should pay attention to the particle size distribution to ensure the precise control of the microstructure of shaped and amorphous refractories. In view of the fact that the raw mineral properties have a great impact on the clinker stability, raw material manufacturers should To study its influence on the composition of clinker particles, the relevant government departments must give strong support to the stability of the ore source of the raw material production plant; the introduction of spherical aggregates may be an effective method to ensure the size stability of aggregates. The microstructure and performance may have a significant impact and are worth further study.