LTAPE Evaporator
1、Definition:
The LTAPE evaporator isShort Name for Low-Temperature, Atmospheric Pressure EvaporatorLow Temperature Atmospheric Pressure EvaporatorA new concept evaporator made of plastic material, powered by a refrigerant heat pump and operating at atmospheric pressure.
2、Working 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 into a condensate using the cold source, achieving the purpose of evaporation separation. 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 Evaporators
① Evaporator body, pump, pipeline valves, etc., are all providedPPH, FRP, PTFE, and other organic materials offer excellent corrosion resistance, preventing internal and external as well as external and internal corrosion by 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 allOperating at 100℃ fails to address the sealing issues caused by thermal expansion and contraction, often leading to equipment being corroded and damaged by acidic gases leaking from the outside.
③ Our unique heat exchanger and energy-saving device structural design, along with material selection, enable 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 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 twenty years.
⑤ Unique real-time crystalline salt separation technology, capable of separating while evaporating.
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 Content (as)NaOH mg/L | 165000 |
2 | Salt content （mg/L） | 80000 |
3 | Copper ions （mg/L） | 8000 |
4 | CODcr （mg/L） | 25000 |
The adopted waste acid treatment process:
After recycling, the quality of the recycled acid is as follows:
Serial Number | Index | Concentration |
1 | Free Acid Content (by)NaOH mg/L | 150000 |
2 | Salt content （mg/L） | 100 |
3 | Copper ions （mg/L） | 2 |
4 | CODcr （mg/L） | 5000 |
Case Images
