LTAPE Evaporator
1、Definition:
LTAPE Evaporator isShort Name for Low-Temperature Atmospheric EvaporatorLow Temperature Atmospheric Pressure EvaporatorA new concept evaporator made of plastic material, powered by a refrigerant heat pump and operating at atmospheric pressure.
2、Operating Principle:
The energy source of the 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, producing acid vapor. The acid vapor is then transported to the condenser by air flow, 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, pipe valves, etc., all are forPPH, FRP, PTFE, and other organic materials offer excellent corrosion resistance, preventing both internal and external corrosion of equipment from acid liquids and acid 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 fumes leaking from the outside.
③ Our unique heat exchanger, energy-saving device structure design, and material selection enable the evaporator to withstand long-term corrosion from high concentrations of sulfuric acid, nitric acid, and hydrochloric acid, and can process almost all waste acids; utilizing refrigerant heat pump technology, the overall energy efficiency ratio using electrical power can reach6.5~7.0, 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, enabling separation while evaporating.
5、Typical Application Cases
1）Case1
A sodium saccharin production company, generates daily200 tons of copper-containing waste acid water, water quality details as follows:
Serial Number | Indicator | Concentration |
1 | Free Acid Content (as)NaOH (as NaOH) mg/L | 165000 |
2 | Salt content （mg/L） | 80000 |
3 | Copper ions （mg/L） | 8000 |
4 | CODcr （mg/L） | 25000 |
Adopted waste acid treatment process:
After recycling, the quality of the recycled acid is as follows:
Serial Number | Index | Concentration |
1 | Free Acid (as)NaOH mg/L | 150000 |
2 | Salt content （mg/L） | 100 |
3 | Copper ions （mg/L） | 2 |
4 | CODcr （mg/L） | 5000 |
Case Images
