A waste liquid zero discharge treatment device and its treatment method

Abstract

The invention discloses a waste liquid zero discharge processing device and a processing method thereof. The processing device includes waste liquid conveying equipment, a pre-sedimentation tank, a buffer tank, atomization equipment, a solid-liquid-gas separation device and a dust removal device, and waste liquid conveying equipment. The water pipe is connected to the pre-sedimentation tank, the pre-sedimentation tank is connected to the buffer tank, and the buffer tank is connected to the atomization equipment through the water supply pipe; the atomization equipment is installed at the entrance of the top of the solid-liquid-gas separation device, and the gas outlet of the solid-liquid-gas separation device is connected to the dust collector through the pipeline. The device is connected. The treatment method is that the waste water enters the buffer tank through the pre-sedimentation tank, and then enters the top entrance of the solid-liquid-gas separation device after being atomized by the atomization equipment; the high-temperature air flow is passed through the top entrance to evaporate the water in the atomized small droplets to obtain The impurity particles are condensed by the high-intensity sound waves emitted by the sound-generating device to form larger agglomerated parcels, enter a stall state through the static pressure expansion area, accelerate to sink and be discharged. The invention further purifies the waste water through the unique design of the device, and finally achieves the goal of zero discharge.

Description

technical field [0001] The invention relates to a waste liquid treatment device and a treatment method thereof, in particular to a waste liquid zero discharge treatment device used in thermal power, steel and other fields. Background technique [0002] With the progress of society and the development of economy, the pollution of thermal power plants to the atmospheric environment has been widely concerned by people. Therefore, it is a severe challenge for the sustainable development of my country's energy field to effectively reduce pollutant emissions and improve the impact on the environment. [0003] At present, the existing flue gas desulfurization technologies include wet desulfurization and dry desulfurization. Among them, wet desulfurization technology is the most widely used. Wet flue gas desulfurization is a technological process adopted by about 85% of large thermal power plants in the world today. Due to the high content of mercury, lead, nickel, arsenic and chr...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a brand-new waste liquid zero discharge treatment device and its treatment method in order to overcome the above deficiencies in the prior art. The device uses a high-energy sounding device and a unique static pressure expansion design to form solid-liquid-gas separation The device solves the zero-discharge treatment method of solid-liquid separation through high-temperature evaporation. The pipeline in front of the dust removal device is caused by the continuous passage of salt after crystallization in the waste water. The problem of aggravated ash accumulation and scaling in parts can effectively avoid related problems such as increased energy consumption of boiler units, passive shutdown of boiler units, excessive discharge of air pollutants such as smoke and dust due to ash accumulation and fouling blockage, and comprehensively realize energy saving and environmental protection and zero discharge of waste water and waste gas Target

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