Device and method for treating desulfurizing wastewater

• Main Authors: XIE BAOJIANG, XU WEIGANG, CI BINBIN, FENG CHUNLU, LIU LIN, ZHANG JINGDAN, CHANG SHUAI, ZHANG YANG, SHI CHENGCHENG, ZHANG ZHENGMIN, MA GUANGQUAN, ZHANG LIN
• Format: Patent
• Language: Chinese; English
• Published: 12.10.2018
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention relates to the technical field of energy-saving and environment-friendly treatment of wastewater, in particular to a device and a method for treating desulfurizing wastewater. The devicemainly comprises a pretreatment unit, a preheating unit, a MVR (mechanical vapor recompression) evaporating unit, and a spray evaporating and drying unit, wherein the pretreatment unit comprises three stages of settling tanks, a water storage tank and a water pump; the preheating unit comprises a condensate water tank and a preheater; the MVR evaporating unit comprises an evaporator, a steam compressor, and a vapor and liquid separator; the spray evaporating and drying unit comprises a centrifuge machine, a spray device, a fan, an air heater, a drying tower, a cyclone separator, and a finished product tank. The device has the advantages that the self heat energy of the system and the potential heat of secondary steam are fully and effectively utilized, so that the energy source is saved;the spray evaporating and