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3 国际水泥生产技术和装备水平的发展概况 装备大型化是国际水泥生产发展的总趋势。具体表现为:新型干法窑不断向现代化大型化迈进,自动化水平不断提高,回转窑单线生产能力已经达到日产5000t、7500t、9000t和10000t熟料,其装备水平也达到了很高的程度。直径为5m以上的大型NSP回转窑,无论是机械制造方面还是耐火材料的稳定性方面都已过关,有关的技术经济指标已达到了新的境界,吨水泥的综合电耗已降低到90kWh以下,热耗为3000kJ/kg熟料,充分显示了先进技术的强大生命力。
3 Overview of the development of international cement production technology and equipment The large scale of equipment is the general trend of international cement production and development. The specific performance is as follows: The new dry process kiln continues to move toward modernization, and the level of automation continues to increase. The single-line production capacity of rotary kiln has reached 5000t, 7500t, 9000t and 10000t clinker per day, and its equipment level has also reached a high level. Large-scale NSP rotary kiln with a diameter of 5m or more has passed through both mechanical manufacturing and refractories stability. The relevant technical and economic indicators have reached a new level. The integrated power consumption of tons of cement has been reduced to below 90kWh. Heat consumption is 3000kJ/kg clinker, which fully shows the strong vitality of advanced technology.