Energy-saving high-salinity wastewater zero discharge control system and control method

The invention discloses an energy-saving high-salinity wastewater zero discharge control system and a control method, wastewater hardness and suspended solids of received high-salinity wastewater of a power plant are reduced through pretreatment, the effluent is subjected to concentration and reduction treatment to reduce the amount of wastewater at the tail end, and finally, the concentrated and reduced effluent is crystallized through an evaporation tower to realize zero discharge of wastewater. The waste heat flue gas at the tail part of the evaporation tower is utilized to heat inlet water of the evaporation tower while zero discharge of waste water is realized, so that the flue gas amount per ton of water during operation of the evaporation tower is reduced, the influence on boiler efficiency is reduced, and energy conservation and consumption reduction are realized. 本发明公开了一种节能型高盐废水零排放控制系统以及控制方法，通过预处理降低接收的电厂的高盐废水的废水硬度和悬浮物，将出水再进行浓缩减量处理，降低末端废水量，最后将浓缩减量出水经蒸发塔结晶实现废水零排放，在实现废水零排放的同时利用蒸发塔尾部余热烟气加热蒸发塔进水，降低蒸发塔运行吨水