Study on a Demonstrative Project of the Heat Utilization of Low-Quality Packaging Wastes in Cement Kilns
To solve the disposal problem of low-quality packaging wastes, the low-quality packaging wastes were processed into refuse derived fuel (RDF) first, and then placed into cement kilns to incinerate for resource reutilization. Through a demonstrative project, the technical and economic feasibility of heat utilization of low-quality packaging wastes in cement kilns was studied. As indicated by the results, when low-quality packaging wastes were incinerated in precalciner cement kilns with the clinker production capacity of 5000t/d at the feed rate of 6t/h, the incineration did not cause any negative impacts on the flue gas pollutants emission of the cement kiln, the environmental safety of the cement product as well as the output and quality of the clinker. Compared with regular cement production, the coal and raw material consumption of unit clinker in incinerating low-quality packaging RDF were smaller, but the power consumption of unit clinker was higher. When the sorting cost of low-quality packaging wastes reduced to 118 RMB/t, it can guarantee that the profit of the cement enterprise was equal to that of regular cement production even without disposal fee.
Da-hai YAN Na LIU Li LI Ming-hui XIE Qi WANG
Research Institute of Solid Waste Management, Chinese Research Academy of Environmental Sciences, Beijing, China
国际会议
The Fifth International Conference on Waste Management and Technology(第五届固体废物管理与技术国际会议)
北京
英文
228-234
2010-11-01（万方平台首次上网日期，不代表论文的发表时间）