Evaporation Crystallization Technology of Saline Wastewater

Evaporation crystallization technology of saline wastewater

1. Overview

In view of the "high salt content" of waste liquid produced in cellulose, salt chemical industry, coal chemical industry and other industries, a three-effect forced circulation evaporation system is used to concentrate crystallization, susaturated crystal slurry is sent to the separator to obtain crystal salt, and the mother liquid is returned to the system to continue to recycle and concentrate after separation.

The device adopts automatic program control. The evaporation of tons of waste water consumes 0.3~0.35 tons of steam.

2. Process flow chart:

The evaporator of waste clear liquid is treated by the secondary steam of dryer

1. Overview

The "four-effect, falling film and falling pressure" evaporation system is adopted, and the falling film evaporator adopts the "three-stage film distribution" technology. With the secondary steam of the dryer and the vapor condensation water flash steam as the heat source, the waste heat evaporator is set to use the residual steam of the dryer again to concentrate and evaporate the waste liquid, and the concentrated pulp is sent to the dryer, and the evaporated condensate is sent to the water treatment plant.

The device adopts automatic program control. The evaporation system does not require a single refill of steam.

2. Process flow chart:

DDGS complete set

1. Overview

Distillers Dried Grains with Solubles are called DDGS (Distillers Dried Grains with Solubles).

By means of four units of mechanical separation, steam drying, waste heat evaporation and weighing and packaging, the device can transform waste into treasure and obtain high protein feed which is easy to store, easy to transport and rich in nutrition. It solves the environmental problems that restrict the development of enterprises and brings considerable economic benefits at the same time. The device adopts automatic program control.

2. Process flow chart