High-temperature bypass evaporation device for treating desulfurization wastewater

Abstract

The invention relates to a high-temperature bypass evaporation device for treating desulfurization wastewater, belongs to the technical field of desulfurization wastewater, and solves the technical problems of low efficiency, energy consumption increase, equipment corrosion and the like of a triple-effect flash evaporation system caused by filtrate backflow. According to the solution, the high-temperature bypass evaporation device for treating the desulfurization wastewater comprises an evaporation tower, a wastewater atomization device, a plurality of groups of wall-attached air devices, a plurality of groups of rapping dust removal device groups, a temperature monitoring system and a control system; the tower wall of the evaporation tower is sequentially provided with the wastewater atomization device, the wall-attached air devices and the rapping dust removal device groups from top to bottom, and the control system is electrically connected with the wastewater atomization device, the wall-attached air devices, the rapping dust removal device groups and the temperature monitoring system respectively. The bypass is led out between the SCR denitration device and the dust remover for wastewater treatment, original high-temperature flue gas is utilized, additional independent treatment is not needed, space is saved, efficiency is improved, and cost is saved.

Description

technical field [0001] The invention belongs to the technical field of desulfurization wastewater treatment, and in particular relates to a high-temperature bypass evaporation device for treating desulfurization wastewater. Background technique [0002] As my country's environmental protection situation is becoming increasingly severe, the country's requirements for environmental protection are becoming more and more stringent, and environmental protection standards are becoming increasingly tight within the appropriate range. In terms of water treatment, the country has raised water environmental protection to the strategic level of national construction. The "Water Pollution Prevention and Control Action Plan" issued by the State Council on April 2, 2015 clearly stated that it is necessary to pay close attention to the prevention and control of industrial pollution. As a major user of water and drainage, power plants can account for about 20% of the total industrial water...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, provide a high-temperature bypass evaporation device for treating desulfurization wastewater, and solve technical problems such as low efficiency of the three-effect flash evaporation system caused by backflow of filtrate, increased energy consumption, and equipment corrosion. Guarantee the long-term efficient and stable operation of the three-effect flash evaporation system

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