LTAPE Evaporator
1、Definition:
LTAPE EvaporatorAbbreviation for Low Temperature Atmospheric Pressure EvaporatorLow Temperature Atmospheric Pressure EvaporatorA new concept evaporator made of plastic material, utilizing a refrigerant heat pump as its energy source and operating under atmospheric pressure.
2、Operation Principle:
The energy source of LTAPE evaporator is a 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 transported to the condenser by wind, where it is condensed back into a liquid using the cold source, achieving the purpose of evaporation separation. The entire process is carried out 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 and non-volatile acids；
④ Separation of salts from waste acid.
⑤ Evaporation treatment for 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 Operating at atmospheric pressure and low temperatures ensures greater stability in pump operation and a safer working process.And conventional graphite evaporators, enamel kettle evaporators are allOperating at 100℃ does not resolve 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 device structure design, along with material selection, enables our evaporators to withstand long-term corrosion from high concentrations of sulfuric acid, nitric acid, and hydrochloric acid; capable of processing almost all waste acids. Utilizing refrigerant heat pump technology, the overall energy efficiency ratio, utilizing electricity, reaches6.5~7.0, low energy consumption. Operating cost is 180~320 yuan/ton for recovered acid.
④ The refrigerant heat pump utilizes secondary heat exchange, does not come into contact with acidic fluids, and has a lifespan of over 20 years.
⑤ Unique real-time crystalline salt separation technology, capable of separating while evaporating.
5、Typical Application Cases
1）Case1
A sodium saccharin production company, generates daily200 tons of copper-containing waste acid water, with the water quality as follows:
Serial Number | Index | Concentration |
1 | Free Acid (as)NaOH mg/L | 165000 |
2 | Salt content （mg/L） | 80000 |
3 | Copper ions （mg/L） | 8000 |
4 | CODcr （mg/L） | 25000 |
The waste acid treatment process adopted:
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
