SHENG Jun,ZHANG Shuai-ling.Enlightenment of Sludge Incineration Project Commissioning Experience on Design Optimization[J].China Water & Wastewater,2021,37(24):113-118.
污泥焚烧工程调试经验对设计优化的启示
- Title:
- Enlightenment of Sludge Incineration Project Commissioning Experience on Design Optimization
- 摘要:
- 以上海市石洞口污泥处理二期工程为例，通过分析工程调试经验，探讨污泥焚烧工程的设计优化措施。为应对入炉污泥热值及含水率波动，稳定焚烧炉运行工况，可调整半干污泥及脱水污泥的入炉量配比，并在炉前污泥接收设施中增加均质功能。为进一步提高工程运行的灵活度和稳定性，降低生产线逻辑控制难度，可在干化和焚烧环节之间设置集中的半干污泥储存设施。污泥输送系统应尽可能简化输送环节，输送设备的能力余量不宜过大，且需考虑炉前干湿泥返混后污泥性状改变的工况。
- Abstract:
- This paper discusses the design optimization measures of the sludge incineration project by analyzing the commissioning experience based on the second phase project of Shanghai Shidongkou sludge treatment plant. The ratio between semi-dry sludge and dewatered sludge can be adjusted according to the fluctuations of sludge calorific value and moisture content, and a homogenizing function can be added in the sludge receiving facility before furnace, so as to stabilize the operation conditions of the incinerator. A centralized storage facility for semi-dry sludge can be set up between drying and incineration processes to improve the flexibility and stability of project operation, also reduce the difficulty of logical control for the production line. The sludge conveying system should be simplified as much as possible. The capacity allowance of the sludge conveying system should not be too large. Moreover, it is necessary to consider the working condition caused by sludge property change after the backmixing of dry and wet sludge before furnace.
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