The main function of Wuchang environmental protection low-temperature evaporation equipment is to reduce the boiling point under the action of vacuum negative pressure, so that the raw liquid material is heated to boil and evaporate at about 30-35℃. The evaporated steam is condensed into liquid water through the condensation system and discharged through the drain. The maximum water yield rate can reach 97% depending on the specific gravity of the water. Concentrating and reducing the waste liquid treatment by this low-temperature evaporation equipment can greatly reduce the overall waste liquid treatment cost of the enterprise, and the equipment covers a small area, is convenient to move, and has a high degree of automation. It does not require an external steam source and peripheral cooling water, and only needs to provide electricity and A small amount of compressed air is sufficient.

Wuchang low-temperature evaporation equipment waste water recycling treatment process:

The high-concentration waste liquid is fed into the metering water tank through the external transfer pump, and the vacuum door is opened to suck into the evaporation tank to complete the liquid feeding and metering.

1. Liquid feeding process

After the liquid inlet is completed, the steam valve is opened to heat the waste liquid through the conductive sleeve, and the heat exchange process is performed to provide heat energy for reducing the moisture content.

2. Heating process

Use a vacuum pump to vacuum the overall process to -80 to -90kPa, and the water will boil and evaporate at about 35℃. The low temperature state can avoid the secondary qualitative change of other substances due to high temperature. Efficient evaporation can reduce the moisture content quickly. It can be avoided by matching the stirring device. The coke agglomerated.

3. Distillation process

During the heating process, stirring is evenly heated. After the evaporation period and times can be set, the equipment will run automatically to complete the discharge work.

4. Slag discharge process

After the water in the waste liquid is evaporated. The remaining solid impurities are stored in the evaporation tank, and the solids are sealed or treated and discharged through the conveying device.

5. Drainage process

The evaporated water vapor in the waste liquid becomes clean distilled recovered water through the condensing device, which is stored in the recovery water tank, and the recovered water is reused according to the customer's plan through the pump, such as production process reuse, back to wastewater treatment plant, domestic water use or Direct discharge.

Technical parameters of low temperature evaporation equipment:

Features:

1. The evaporation equipment is made of SS316L stainless steel, and the heat exchanger is made of stainless steel 316L. Titanium alloy or other materials are optional.

2. The evaporation equipment can be operated intelligently and fully automatically, monitored by PLC human-computer interaction interface, with automatic cleaning and bubble elimination functions.

3. The evaporation equipment pipeline is equipped with automatic cleaning function to ensure the smooth flow of the pipeline.

4. The feed filter prevents clogging and interception of crystals to ensure unblocked pipelines.

5. In the process of automatic operation, the waste liquid and defoamer are automatically fed to complete automatic slag discharge and other tasks.

6. The negative pressure is fully enclosed and the working state is maintained at -0.01Kpa to ensure no gas leakage.

7. Air kinetic energy heating, a new environmentally friendly low-energy-consumption process, and the evaporation temperature is maintained in the range of 28~30℃.

8. Reclaimed water that meets the standard can be tested by a third-party organization to ensure that it meets the national A-level standard discharge requirements.

Application areas:

◆ Concentrated electroplating waste liquid (gold, silver, copper, nickel... and other metals);

◆ Anode treatment of phosphoric acid waste liquid, grinding waste liquid, paint waste liquid;

◆ Emulsified cutting fluid wastewater, hydrofluoric acid treatment wastewater;

◆ Sludge concentration and dehydration, ammonium sulfate waste liquid, boron-containing waste liquid;

◆Various kinds of salty waste liquid, etc.;