杨岳青1
1.上海市机电设计研究院有限公司,上海 200040
基金项目: 上海市环境保护科学技术发展基金资助项目沪环科05-22上海市环境保护科学技术发展基金资助项目(沪环科05-22)
High pressure compression technology development and engineering for fly ash from municipal solid waste incineration
GU Zhiqiang1,,YANG Yueqing1
1.Shanghai Institute of Mechanical & Electrical Engineering Co. Ltd., Shanghai 200040, China
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摘要:以某生活垃圾焚烧电厂飞灰减容工程为例,对高压压制技术处置生活垃圾飞灰进行了研究,分析了螯合灰密度和压块无侧限抗压强度分别与作用压强的关系。通过调节原料含水率、原料温度、成型尺寸、压制压强,优化了飞灰高压压制主要工艺参数。经工程应用验证,该技术能够大幅提高飞灰密度,减容率达50%以上,成型率达到90%以上;飞灰压制成品能满足生活垃圾填埋场的浸出毒性标准。飞灰高压压制技术可有效提高填埋场的飞灰填埋库容效率,大幅延长现有填埋场的运营寿命。
关键词: 生活垃圾焚烧飞灰/
高压压制技术/
无侧限抗压强度/
填埋场浸出毒性
Abstract:In the volume reduction project of fly ash from a municipal solid waste incineration power plant, the high pressure technology for fly ash disposal was studied, and the relationships between chelating ash density, unconfined compressive strength of the block and action pressure were analyzed. The main process parameters were optimized by adjusting the moisture content and temperature of raw material, forming size and pressing pressure. Proven by engineering applications, this technology could elevate fly ash density with over 50% volume reduction and over 90% molding rate. The finished product from compressed fly ash could meet the leaching toxicity standard of domestic solid waste landfill. The fly ash compression technology can effectively improve the storage efficiency of fly ash landfill and greatly extend the operation life of the existing landfill sites.
Key words:fly ash from municipal solid waste incineration/
high pressure compression technology/
unconfined compressive strength/
leaching toxicity of landfill.
[1] | 罗宇, 黄力, 刘元元. 垃圾焚烧系统生命周期评价清单的分配方法[J]. 重庆大学学报, 2003, 26(3): 154-157. |
[2] | 中华人民共和国环境保护部, 中华人民共和国国家发展和改革委员会. 国家危险废物名录[S]. 北京: 中国环境科学出版社, 2016. |
[3] | 尚宁, 王海洋, 吴华南, 等. 垃圾焚烧飞灰水泥固化体的抗压强度和浸出性研究[J]. 环境工程学报, 2016, 10(6): 3207-3214. |
[4] | 中华人民共和国环境保护部, 中华人民共和国国家质量监督检验检疫总局. 生活垃圾填埋污染控制标准: GB 16889-2008[S]. 北京: 中国环境科学出版社, 2008. |
[5] | 靳美娟. 城市生活垃圾焚烧飞灰水泥固化技术研究[J]. 环境工程学报, 2016, 10(6): 3235-3241. |
[6] | 李江山, 薛强, 胡竹云, 等. 垃圾焚烧飞灰水泥固化体强度稳定性研究[J]. 岩土力学, 2013, 34(3): 751-756. |
[7] | 李琛. 推进垃圾焚烧飞灰的无害化、资源化、减量化处理[N]. 人民政协报, 2017-12-18(6). |
[8] | 卢年春, 李萍, 凌云, 等. 城市污泥综合利用研究[J]. 安徽农业科学, 2005, 31(11): 2101-2102. |
[9] | 宋志伟, 吕一波, 梁洋, 等. 新型复合垃圾衍生燃料的制备及性能分析[J]. 环境工程学报, 2007, 1(6): 114-117. |
[10] | 王林. 燃煤飞灰沉积特性的实验研究[D]. 哈尔滨: 哈尔滨工业大学, 2015. |
[11] | 尚宁, 王海洋, 吴华南, 等. 垃圾焚烧飞灰水泥固化体的抗压强度和浸出性研究[J]. 环境工程学报, 2016, 10(6): 3207-3214. |
[12] | 赵由才, 陈善平, 史昕龙, 等.生活垃圾焚烧飞灰安全填埋与超高压压制工艺开发[J]. 山东化工, 2017, 46(19): 160-163. |
[13] | 宋珍霞, 王里奥, 林祥, 等. 城市垃圾焚烧飞灰特性及水泥固化试验研究[J]. 环境科学研究, 2008, 1(4): 163-168. |
[14] | ZHANG F, CUI Y J, ZENG L L, et al. Effect of degree of saturation on the unconfined compressive strength of natural stiff clays with consideration of air entry value [J]. Engineering Geology, 2018, 237: 140-148. |
[15] | 厉惠良, 苑辉. 水泥窑协同处置垃圾焚烧飞灰技术研究进展[J]. 水泥, 2014 (11): 18-21. |
[16] | 尤洪梅. 焚烧飞灰药剂稳定技术研究进展[J]. 化工技术与开发, 2018, 47(6): 42-44. |
[17] | 中华人民共和国环境保护部. 固体废物 浸出毒性浸出方法 硫酸硝酸法: HJ/T 299-2007[S]. 北京: 中国环境科学出版社, 2007. |
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生活垃圾焚烧飞灰高压压制技术开发及示范工程
顾治强1,,杨岳青1
1.上海市机电设计研究院有限公司,上海 200040
基金项目: 上海市环境保护科学技术发展基金资助项目沪环科05-22上海市环境保护科学技术发展基金资助项目(沪环科05-22)
关键词: 生活垃圾焚烧飞灰/
高压压制技术/
无侧限抗压强度/
填埋场浸出毒性
摘要:以某生活垃圾焚烧电厂飞灰减容工程为例,对高压压制技术处置生活垃圾飞灰进行了研究,分析了螯合灰密度和压块无侧限抗压强度分别与作用压强的关系。通过调节原料含水率、原料温度、成型尺寸、压制压强,优化了飞灰高压压制主要工艺参数。经工程应用验证,该技术能够大幅提高飞灰密度,减容率达50%以上,成型率达到90%以上;飞灰压制成品能满足生活垃圾填埋场的浸出毒性标准。飞灰高压压制技术可有效提高填埋场的飞灰填埋库容效率,大幅延长现有填埋场的运营寿命。
English Abstract
High pressure compression technology development and engineering for fly ash from municipal solid waste incineration
GU Zhiqiang1,,YANG Yueqing1
1.Shanghai Institute of Mechanical & Electrical Engineering Co. Ltd., Shanghai 200040, China
Keywords: fly ash from municipal solid waste incineration/
high pressure compression technology/
unconfined compressive strength/
leaching toxicity of landfill
Abstract:In the volume reduction project of fly ash from a municipal solid waste incineration power plant, the high pressure technology for fly ash disposal was studied, and the relationships between chelating ash density, unconfined compressive strength of the block and action pressure were analyzed. The main process parameters were optimized by adjusting the moisture content and temperature of raw material, forming size and pressing pressure. Proven by engineering applications, this technology could elevate fly ash density with over 50% volume reduction and over 90% molding rate. The finished product from compressed fly ash could meet the leaching toxicity standard of domestic solid waste landfill. The fly ash compression technology can effectively improve the storage efficiency of fly ash landfill and greatly extend the operation life of the existing landfill sites.