Integrated Devices

Spent hydrochloric acid purification system
Under normal pressure, the waste hydrochloric acid is preheated by the all-graphite double-effect heat exchanger and then enters the all-graphite rectification column, and the mixed components evaporated from the bottom of the rectification column are on the surface of the packing In full contact, the exchange of mass and heat is carried out.
The heavy components flow into the bottom of the tower and enter the graphite double-effect heat exchanger for heat exchange, and finally enter the cooler at the bottom of the tower for further cooling to normal temperature and discharge into the acid product storage tank: the light components are cooled in the condenser at the top of the tower, and part of the condensed product is returned to the The exchange of mass and heat continues in the rectification tower, and the other part is discharged to the finished product storage as the top product. The device is green and environmentally friendly, reducing pollution to the environment: low energy consumption: PLC is used to control continuous production.

Concentrated acid desorption system
In chlor-alkali, petroleum, pharmaceutical, pesticide and other industries, hydrogen chloride with high purity can be obtained by distilling high-concentration hydrochloric acid solution. The concentration of hydrochloric acid solution is required to be 25%-32%, which can be absorbed by hydrogen chloride. made of gas.
Under normal pressure, the concentrated hydrochloric acid in the concentrated acid tank is preheated by the all-graphite double-effect heat exchanger and enters the top of the desorption tower, and the mixture of hydrogen chloride and water evaporated from the bottom of the desorption tower is fully on the surface of the packing. Contact exchanges mass and heat. The hydrogen chloride in the concentrated acid gets heat and is desorbed. After being cooled by the tower top cooler and the recooler, the water is further removed by the mist eliminator to obtain dry hydrogen chloride gas. The dilute hydrochloric acid at the bottom of the desorption tower is cooled by the bottom cooler and then enters the dilute acid tank.