Steam based low-temperature evaporation and concentration equipment

（2） Working principle

Steam based low-temperature evaporation and concentration equipmentUsing steam as a heat source to transfer heat to materials. At the same time, the vacuum pump reduces the pressure inside the evaporator to below -98MPa, lowering the boiling point of the material to 30-40 ℃ and achieving low-temperature evaporation. Steam releases heat in the heating chamber and condenses into distilled water, which can be directly recycled and reused. The PLC intelligent control system automatically adjusts the feeding speed, steam flow rate, and vacuum degree to ensure stable operation; The continuous operation cycle of the equipment is extended by more than twice.

（2） Core advantages

Simple structure and low maintenance cost

Steam based low-temperature evaporation and concentration equipmentReduce maintenance costs by 50% compared to traditional evaporation equipment; The key components are made of SS316L stainless steel material, with a corrosion resistance life of over 10 years.

Flexible adaptation and rapid deployment
Modular design supports modular installation, occupying only 2-50 square meters, and can be debugged within 7 working days; The processing capacity range is 10-3000kg/h, suitable for small and medium-sized production lines.

Low temperature protection and anti scaling
Low temperature operation at 30-60 ℃ avoids denaturation of thermosensitive substances, such as vitamin retention rates exceeding 95% in food and beverages.

High concentration ratio and compliant emissions
The concentration reduction ratio of waste liquid exceeds 80%, and the quality of the produced water is better than the "Comprehensive Wastewater Discharge Standard" (GB8978-1996), which can be directly reused or discharged; Concentrated solution with a moisture content of less than 15% reduces transportation costs by 60%.

（3） Applicable fields

Electroplating wastewater:The processing capacity is 2-10 tons/day, and heavy metals such as nickel and chromium are recovered. The treated distilled water meets the discharge standards.

Chemical wastewater:Processing high salt and high COD waste liquids (TDS ≤ 30000mg/L) reduces the cost of hazardous waste disposal by 70%.

切削液 / 乳化液废水：Concentrate and reduce by 90%, with a water reuse rate of 85%.

Dairy products, juice concentratesRetain nutrients and avoid high-temperature oxidation, such as protein loss rate<3% after milk concentration.

Pharmaceutical process solution: Low temperature crystallization extracts effective ingredients, improving product purity to over 99%.

Garbage leachate treatmentCombining pre-treatment and low-temperature evaporation to achieve fully quantified treatment, the produced water is reused for flushing the system.

Hazardous waste disposalConcentrate the waste liquid with a moisture content of 90% to a solid state, reducing transportation costs by 60%.

（4） Typical case

• processing capacity: 5 tons/day

• water qualityNickel ion concentration 80mg/L, COD 3000mg/L

• planSteam type single effect low-temperature evaporation and concentration equipment+ion exchange resin

• effect：

• Reduce the volume of wastewater by 85% and save 1.2 million yuan in hazardous waste disposal costs annually.

• Nickel ions in the produced water are ≤ 0.1mg/L, reused in the rinsing process, saving 15000 tons of water annually.

  
  

Case 2:Treatment of ammonium sulfate mother liquor in a fine chemical enterprise

• processing capacity: 10 tons/day

• water qualityAmmonium sulfate concentration 15% COD 12000mg/L、pH 4.5-5.5

• planSteam based single effect low-temperature evaporation and concentration equipment+pH adjustment pretreatment

• effect：Reduce the volume of wastewater by 85% and produce 120 tons of ammonium sulfate crystals annually
  

（5） Working principle diagram