Direct discharging structure of crystallized salt wastewater evaporation device

Abstract

The invention discloses a direct discharging structure of a crystallized salt wastewater evaporation device. The structure comprises a tank body, the lower portion of the inner wall of the tank body is fixedly provided with a heat exchange column pipe through a fixing frame, an air outlet of the heat exchange column pipe is communicated with an evaporator condensate port in the lower portion of the outer side face of the tank body, an air outlet in the upper end of the tank body is communicated with an air inlet of a steam compressor through a guide pipe, and an air outlet of the steam compressor is communicated with an air inlet of a check valve; a first servo motor drives a first transmission shaft, a U-shaped rod and a second transmission shaft to rotate, the U-shaped rod drives a connecting rod and vertical rods to move up and down through a sleeving ring, the vertical rods drive a circular plate to move up and down, the circular plate moves in the tank body and a vertical pipe back and forth to make a concentrated raw material move, a vibration motor makes crystallized salt attached to the bottom of the inner wall of the tank body fall off, a first spiral blade and a second spiral blade enable the concentrated raw material to move rightwards, and discharging is smooth.

Description

technical field [0001] The invention relates to the technical field of drying high-salt organic wastewater, in particular to a direct discharge structure of a crystalline salt wastewater evaporation device. Background technique [0002] High-salt wastewater comes from the production process of coal chemical industry, metallurgy, pesticide, pharmaceutical, seafood processing and other industries, and its salt content usually exceeds 1%. Compared with ordinary wastewater, the inorganic salts in high-salt wastewater have an inhibitory effect on microorganisms and are difficult to treat with biochemical methods. At present, evaporation is the most commonly used method for the treatment of high-salt organic wastewater. [0003] After the high-salt wastewater is desalinated by evaporation and crystallization, the salt content and organic matter concentration of the effluent are greatly reduced, and can be directly discharged, or reused after advanced treatment, and a zero dischar...

AI Technical Summary

Problems solved by technology

The process system is relatively complex, with a lot of equipment, difficult operation, frequent cleaning of pipeline blockages, and long-term stable operation of the evaporation and crystallization system.

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