| 高温熔渣热资源回收技术发展及探讨 |
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| 引用本文： | 吴龙,吴华峰,吴跃东,贾少华,王会刚.高温熔渣热资源回收技术发展及探讨[J].环境工程,2020,38(9):190-193,88. |
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| 作者姓名： | 吴龙 吴华峰 吴跃东 贾少华 王会刚 |
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| 作者单位： | 1. 中冶建筑研究总院有限公司, 北京 100088; |
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| 摘 要： | 我国高温熔渣年产生量超过6亿t，其热资源价值巨大，但浪费情况严重。对干法粒化、化学法、冷却水余热利用、直接制备产品4种熔渣热能利用技术进行了论述探讨。熔渣热能回收技术的应用离不开熔渣资源利用，综合经济效益最大化是热能利用技术应用的关键因素。对于高温熔渣热回收技术建议如下:针对活性物料含量低的熔渣采用干法粒化、化学法进行热能回收；活性物料含量高的熔渣，在确保熔渣产品活性的条件下进行热能回收技术开发；因地制宜地进行冲渣冷却水余热利用；解决熔渣直接制备产品的关键工艺技术难点，提质降本；加强熔渣液固转变矿物结构变化过程的研究，实现固化渣的矿物组成调控。
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| 关 键 词： | 熔渣 热能回收 干法粒化 资源利用 |
| 收稿时间： | 2019-08-09 |
DISCUSSION ON DEVELOPMENT OF HEAT RECOVERY TECHNOLOGY FOR HIGH TEMPERATURE MOLTEN SLAG |
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| WU Long,WU Hua-feng,WU Yue-dong,JIA Shao-hua,WANG Hui-gang.DISCUSSION ON DEVELOPMENT OF HEAT RECOVERY TECHNOLOGY FOR HIGH TEMPERATURE MOLTEN SLAG[J].Environmental Engineering,2020,38(9):190-193,88. |
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| Authors: | WU Long WU Hua-feng WU Yue-dong JIA Shao-hua WANG Hui-gang |
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| Affiliation: | 1. Central Research Institute of Building and Construction, MCC Group, Co., Ltd, Beijing 100088, China;2. China International Engineering Consulting Corporation, Beijing 100048, China;3. Appraisal Center for Environment and Engineering, MEE, Beijing 100012, China |
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| Abstract: | In China, the annual output of high temperature molten slag is higher than 6×108 t, which has a great value of heat. However, by now, most of heat resource can not be recovered. In this paper, four heat recovery technologies, including dry granulation, chemical method, waste heat utilization of cooling water and production using molten slag as the raw material, were discussed. The key factor for the application of heat recovery technology was the maximum utilization and economic efficiency. To recover heat resource, dry granulation and chemical method were adopted to treat the molten slag with lower content of active materials. Whereas, molten slag containing higher content of active materials needed to be treated without decreasing slag activity. Furthermore, waste heat utilization of cooling water could be adopted according to the actual condition. The difficulties in production using molten slag as the raw material should be overcome, which is beneficial for increasing the quality and decreasing the cost of the product. Finally, the structure variation during the liquid-solid transformation of molten slag should be further researched, contributing to realize the control of the mineral composition of solidified slag. |
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