发明申请
US20140262738A1 METHOD AND DEVICE FOR RECYCLING AND PURIFYING WATER VAPOR FROM COAL DRYING PROCESS
有权
从煤炭干燥过程中回收和净化水蒸气的方法和装置
- 专利标题： METHOD AND DEVICE FOR RECYCLING AND PURIFYING WATER VAPOR FROM COAL DRYING PROCESS
- 专利标题（中）： 从煤炭干燥过程中回收和净化水蒸气的方法和装置
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申请号： US14107681申请日： 2013-12-16
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公开(公告)号： US20140262738A1公开(公告)日： 2014-09-18
- 发明人: Xu Zhao , Maikui Zhang , Tao Shen , Zhongfu Zhan , Yongpeng Tan , Min Jia , Tianbao Wang , Xiaoling Xie
- 申请人： National Engineering Research Center of Drying Technology and Equipment , TIANHUA INSTITUTE OF CHEMICAL MACHINERY AND AUTOMATION CO., LTD.
- 申请人地址： CN Lanzhou CN Lanzhou
- 专利权人： National Engineering Research Center of Drying Technology and Equipment,TIANHUA INSTITUTE OF CHEMICAL MACHINERY AND AUTOMATION CO., LTD.
- 当前专利权人： National Engineering Research Center of Drying Technology and Equipment,TIANHUA INSTITUTE OF CHEMICAL MACHINERY AND AUTOMATION CO., LTD.
- 当前专利权人地址： CN Lanzhou CN Lanzhou
- 主分类号： C02F1/06
- IPC分类号： C02F1/06
摘要：
A method and device are provided for purifying and recycling water vapor from a coal drying process. Included are a temperature-lowering and dehumidifying process, a flash distillation stripping process, and a vacuum condensing process. A condensing tower receives a temperature-lowered exhaust gas with high humidity from a cooling tube and a condensed water of 5˜60° C. from a flash distillation tank, allowing the exhaust gas and the condensed water to contact each other in a vapor-liquid reverse manner, to lower the temperature and dehumidify the exhaust gas. The flash distillation tank performs a vacuum flash distillation to the condensing water pumped therein from the condensing tower. Water vapor of 5˜60° C. evaporated through flash distillation in the flash distillation tank enters into the demisting washer to be dehumidified and then is condensed. The condensed water in the vapor condenser is transferred into a recycled water tank. Non-condensable gas is discharged out.
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