Automation hydrogen recovery system
 Secondary reduction furnace exhaust gas and solid impurities containing hydrogen impurities, passes through the filter in addition to most of the solid impurities, leaching into the water tower to remove gaseous impurities from the Roots blower boost. Into the cooling system, heat exchange, fell from the dew point of the hydrogen released when 43 ~ 47 ℃ to 15 ℃, hydrogen was removed about 90% of water in the leaching process and the two-stage cooling process. Water separated by the steam separator out discharged from the automatic drainage. Hydrogen remaining moisture from entering the group of the drying tower, silica gel and molecular sieve adsorption to reach the dew point of need. Finally, the purified hydrogen gas is fed to a hydrogen reduction furnace or other equipment.
When the water dried molecular sieve adsorption tower reaches saturation, the need to re-use regeneration dehydration. Using two parallel adsorption dryer, a work, while the other can be regenerated. Alternating work and regeneration to ensure continuous operation.
A portion of the purified hydrogen after. 2 groups to regenerate the drying tower. Regeneration gas is cooled by the cooler, the water separated by the steam separator. Back to the group with the drying tower for recycling.

Second, the device characteristics
1. To avoid pressure fluctuations throughout the recycling system, the system adds up the hydrogen pressure control automation system, with changes in gas consumption, which can be automatically controlled according to changes in the pressure of hydrogen production process, the system pressure is still maintained its original state.
2. By column leaching common form of hydrogen gas cleaning, at the bottom of it is set up to clean the sewage outfall internal deposits.
3. When the blower motor explosion frequency by changing system conditions, blower motor condition has changed. The pressure is stabilized