MVR (Mechanical Vapor Recompression) wastewater treatment device and use method thereof

Abstract

The invention discloses an MVR wastewater treatment device and a use method thereof.The liquid separator comprises a tank body, a motor is fixedly installed in an inner cavity of the lower surface of the tank body, the upper surface of a third connecting pipe is fixedly sleeved with a filter screen plate, the surface of a bearing is fixedly sleeved with a sleeve plate, and one end of each air pipe fixedly communicates with a hollow annular plate; air spraying heads symmetrically sleeve the top of the air pipe in a threaded manner, an air pump is fixedly mounted on the surface of the tank body through a mounting plate, gears fixedly sleeve the bottom of the sleeve plate and the output end of the motor, and a sliding ring plate slidably sleeves the surface of the hollow ring plate. According to the MVR wastewater treatment device and the use method thereof, the problems that in evaporative crystallization treatment, when droplets in liquid are removed in a gas-liquid separator, the droplets cannot be removed, and when the droplets cannot be removed, a small part of steam can be collected together with the formed liquid, so that the separation effect cannot be improved are solved.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to an MVR wastewater treatment device and a use method thereof. Background technique [0002] With the rapid development of the chemical industry, the discharge of high-salt wastewater from various fields is increasing, and the impact of its discharge on the environment is increasing, which has seriously affected the environmental ecology and human health and safety. High-salt wastewater refers to wastewater containing organic matter and at least 3.5% (mass fraction) of total dissolved solids; the salts contained are mostly soluble inorganic salts such as Cl-, SO42-, Na+, Ca2+. The promulgation of the Action Plan for Water Pollution Prevention and Control has put forward higher requirements for the comprehensive control of pollutant discharge and the prevention and control of industrial pollution, especially for the treatment of high-salt wastewater. [0003] The exist...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an MVR wastewater treatment device and its use method, which solves the problem that in the evaporation and crystallization treatment, when the droplets in the liquid are removed in the gas-liquid separator, all the droplets cannot be removed. , and a very small part of the vapor will be collected together with the forming liquid when the droplets cannot be removed, so the separation effect cannot be improved

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