LTAPE Evaporator
1、Definition:
LTAPE EvaporatorAbbreviation for Low-Temperature and Atmospheric Pressure EvaporatorLow Temperature Atmospheric Pressure EvaporatorA new concept evaporator made of plastic material, powered by a refrigerant heat pump and operating under atmospheric pressure.
2、Operating Principle:
The LTAPE evaporator's energy source is a single refrigerant heat pump unit, which can provide a heat source of 50~60℃ and a cold source of 15~20℃. During the evaporation process, the heat source heats and atomizes the waste acid to produce acid vapor. The acid vapor is then transported by wind to the condenser, where it is condensed back into a liquid using the cold source, achieving the separation of evaporation. The entire process is conducted under atmospheric pressure.
3、Application Fields
① Concentrated phosphoric acid; concentrated sulfuric acid.
② Recycling, purification, and concentration of volatile acids such as hydrochloric acid, nitric acid, and oxalic acid；
③ Evaporation of other volatile, non-volatile acids；
④ Separation of salts from waste acid.
⑤ Evaporation treatment of ordinary wastewater.
4、Features of LTAPE Evaporator
① Evaporator body, pump, pipeline valves, etc., are all forPPH, FRP, PTFE, and other organic materials offer excellent corrosion resistance, preventing both internal and external corrosion of equipment from acidic liquids and fogs.
② Operates at atmospheric pressure and low temperatures, ensuring greater stability in pump operation and a safer working process.And conventional graphite evaporators, enameled kettle evaporators are bothOperating at 100℃ fails to address the sealing issues caused by thermal expansion and contraction, leading to equipment often being corroded and damaged by acidic gases leaking from the outside.
③ Our unique heat exchanger and energy-saving unit structure design, coupled with material selection, allows the evaporator to withstand prolonged corrosion from high concentrations of sulfuric acid, nitric acid, and hydrochloric acid, and can handle almost all waste acids; utilizing refrigerant heat pump technology, the overall energy efficiency ratio using electricity is6.5~7.0, low energy consumption. Operating cost is 180~320 yuan/ton for recycled acid.
④ The refrigerant heat pump utilizes secondary heat exchange, avoiding contact with acidic fluids, with a lifespan of over twenty years.
⑤ Unique real-time crystalline salt separation technology, enabling separation while evaporating.
5、Typical Application Cases
1）Case1
A sodium saccharin manufacturer, producing daily200 tons of copper-containing waste acid water; water quality details as follows:
Serial Number | Benchmark | Concentration |
1 | Free Acid (as)NaOH (as NaOH) mg/L | 165000 |
2 | Salt content （mg/L） | 80000 |
3 | Copper ions （mg/L） | 8000 |
4 | CODcr （mg/L） | 25000 |
Waste acid treatment process adopted:
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After recycling, the quality of the recycled acid is as follows:
Serial Number | Index | Concentration |
1 | Free Acid (as)NaOH (as NaOH) mg/L | 150000 |
2 | Salt content （mg/L） | 100 |
3 | Copper ions （mg/L） | 2 |
4 | CODcr （mg/L） | 5000 |
Case Images
