LTAPE Evaporator
1、Definition:
LTAPE EvaporatorAbbreviation for Low-Temperature and 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、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 air 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 Concentration of phosphoric acid and 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 acidic liquids and fogs from corroding equipment both internally and externally.
② Operating at atmospheric pressure and low temperatures ensures greater stability in pump operation and a safer working process.And conventional graphite evaporators, enameled 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, energy-saving unit structural design, and material selection allow our evaporators 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 can reach6.5~7.0, low energy consumption. Operating cost is 180~320 yuan/ton for recycled acid.
④ The refrigerant heat pump uses secondary heat exchange, does not come into contact with acidic liquids, and has a lifespan of over 20 years.
⑤ Unique crystalline salt real-time separation technology, enabling simultaneous evaporation and separation.
5、Typical Application Cases
1）Case1
A sodium saccharin production facility, generates daily200 tons of copper-containing waste acid water, water quality details as follows:
Serial Number | Index | 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:
After recycling, the quality of the recycled acid is as follows:
Serial Number | Indicator | 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
