Design of the System for Dry and Wet Sludge Coupling Combustion for the Coal-Fired Boiler
It is a more preferable choice to process the household garbage with high-efficiency pollutant treatment facilities of coal-fired power generating units. Regarding a coal-fired power generating unit capable of firing both wet and dry sewage sludge (with the water contents of about 80% and 20% respec...
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| Format: | Article |
| Language: | zho |
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State Grid Energy Research Institute
2020-10-01
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| Series: | Zhongguo dianli |
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| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201912174 |
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| author | Zhaojun FANG Bingquan FENG Yi PANG Bo HU Wei ZHAO |
| author_facet | Zhaojun FANG Bingquan FENG Yi PANG Bo HU Wei ZHAO |
| author_sort | Zhaojun FANG |
| collection | DOAJ |
| description | It is a more preferable choice to process the household garbage with high-efficiency pollutant treatment facilities of coal-fired power generating units. Regarding a coal-fired power generating unit capable of firing both wet and dry sewage sludge (with the water contents of about 80% and 20% respectively) in the transformation project, this paper conducts the study on the odor and the sewage generated during the sludge drying process from the coupling combustion in the coal-fired boiler. Also it proposes the optimization design for their treatment system. The odor produced in the stages of receiving, drying and transportation of sludge is collected by the overall micro-negative pressure control of the workshop and the local negative-pressure pumping of the drying device, then through the secondary air bellows system fed into the boiler, and eventually eliminated completely after high temperature combustion. The condensed sewage is mixed into the domestic sewage with low organic pollutant concentration, then treated in the subsequent biochemical treatment process and finally flows into the intermediate water pool for the existing industrial wastewater and hence recycled without any external discharge. With these improvements, the potential secondary pollution that may occur in the process of sludge coupling disposal has been avoided. The design can provide references for the transformation project of other similar coal-fired boilers coupling with sludge disposal. |
| format | Article |
| id | doaj-art-c99e19c8ceb34e53b43c9518641cabb3 |
| institution | DOAJ |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2020-10-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-c99e19c8ceb34e53b43c9518641cabb32025-08-20T02:59:19ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492020-10-01531022423010.11930/j.issn.1004-9649.201912174zgdl-53-6-fangzhaojunDesign of the System for Dry and Wet Sludge Coupling Combustion for the Coal-Fired BoilerZhaojun FANG0Bingquan FENG1Yi PANG2Bo HU3Wei ZHAO4Xi'an Thermal Power Research Institute Co., Ltd. Suzhou Branch, Suzhou 215153, ChinaGuangzhou China Resources Thermal Power Co., Ltd., Guangzhou 511400, ChinaGuangzhou China Resources Thermal Power Co., Ltd., Guangzhou 511400, ChinaGuangzhou China Resources Thermal Power Co., Ltd., Guangzhou 511400, ChinaTianjin SDIC Jinneng Power Co., Ltd., Tianjin 300480, ChinaIt is a more preferable choice to process the household garbage with high-efficiency pollutant treatment facilities of coal-fired power generating units. Regarding a coal-fired power generating unit capable of firing both wet and dry sewage sludge (with the water contents of about 80% and 20% respectively) in the transformation project, this paper conducts the study on the odor and the sewage generated during the sludge drying process from the coupling combustion in the coal-fired boiler. Also it proposes the optimization design for their treatment system. The odor produced in the stages of receiving, drying and transportation of sludge is collected by the overall micro-negative pressure control of the workshop and the local negative-pressure pumping of the drying device, then through the secondary air bellows system fed into the boiler, and eventually eliminated completely after high temperature combustion. The condensed sewage is mixed into the domestic sewage with low organic pollutant concentration, then treated in the subsequent biochemical treatment process and finally flows into the intermediate water pool for the existing industrial wastewater and hence recycled without any external discharge. With these improvements, the potential secondary pollution that may occur in the process of sludge coupling disposal has been avoided. The design can provide references for the transformation project of other similar coal-fired boilers coupling with sludge disposal.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201912174sludge dryingco-firingultra-low emissionsecondary airsewage |
| spellingShingle | Zhaojun FANG Bingquan FENG Yi PANG Bo HU Wei ZHAO Design of the System for Dry and Wet Sludge Coupling Combustion for the Coal-Fired Boiler Zhongguo dianli sludge drying co-firing ultra-low emission secondary air sewage |
| title | Design of the System for Dry and Wet Sludge Coupling Combustion for the Coal-Fired Boiler |
| title_full | Design of the System for Dry and Wet Sludge Coupling Combustion for the Coal-Fired Boiler |
| title_fullStr | Design of the System for Dry and Wet Sludge Coupling Combustion for the Coal-Fired Boiler |
| title_full_unstemmed | Design of the System for Dry and Wet Sludge Coupling Combustion for the Coal-Fired Boiler |
| title_short | Design of the System for Dry and Wet Sludge Coupling Combustion for the Coal-Fired Boiler |
| title_sort | design of the system for dry and wet sludge coupling combustion for the coal fired boiler |
| topic | sludge drying co-firing ultra-low emission secondary air sewage |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201912174 |
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