Aerospace

Application of intalox saddle ring
Renovation of Regeneration Tower in Fertilizer Plant

A factory renovated the problems of serious mist entrainment and increased tower resistance at the outlet of the φ4000mm regeneration tower of the purification device. The original three-layer ceramic Raschig rings with a height of 6m per floor and a volume of 76m3 were all replaced with porcelain saddles of Dg38 and Dg25mm. Packing, and corresponding changes to the internal structure of the tower, such as improving the liquid distribution structure at the top, moving the gas-liquid distribution plate down 1.5m, and lengthening the gas riser.
After the transformation, the three-machine high-load (25000～26000m3[standard]/h) production, and the resistance of the regeneration tower dropped significantly, and the temperature of the regeneration gas outlet from the tower dropped from the original 100～102℃ to 95～99℃.
Renovation of Rectification Column and Absorption Column in Acetic Acid Production
The rectification tower of an acetic acid workshop in a calcium carbide factory was originally two towers of φ650mm and φ800mm, with Dg25 porcelain Raschig ring packing inside, and the two towers were connected in parallel, with a daily output of 106 tons of acetic acid. After being refitted to Dg25 porcelain saddle packing, only one tower of φ650mm can basically meet the production requirements, and the processing capacity has more than doubled.
The diameter of the acetic acid absorption tower in this plant is φ800mm. The original Dg25 porcelain Raschig ring packing was changed to Dg38 and Dg25 porcelain saddle packing, and the production capacity was increased by 15%.

Application of intalox saddlering
Renovation of Dewaxed Oil Phenol Refining Extractor in Refinery
A dewaxed oil phenol refining extraction tower in a refinery uses Dg50 metal ring saddle packing to replace the Dg50 porcelain stepped ring packing originally packed in the tower. Due to the thin wall of the metal packing, the operation is carried out under the same raw material and solution ratio as the old tower. After the transformation, the processing capacity can be increased by 15-20%, the yield can be increased by 1-2%, the average energy consumption of the device can be reduced by 3.5*104kcal/t, the solvent consumption can be reduced by 0.03kg/t, and the quality of the obtained refined oil has been improved.
Renovation of Phthalic Anhydride Refining Tower

The phthalic anhydride rectification tower in the phthalic anhydride workshop of a factory is a vacuum rectification tower with intermittent operation. The operating vacuum degree is 640-700mmHg, the tower diameter is φ700mm, the tower height is 11m, and the original Dg25 porcelain Raschig ring packing is 7m, divided into three parts. part. Then use Dg25 metal ring saddle packing instead of porcelain Raschig ring packing. After the transformation, the distillation time of each kettle is shortened from 24 hours to 20 hours, and the annual production capacity is increased from 6,500 tons to 8,000 tons. The rate of high-grade phthalic anhydride was increased from 60% before the transformation to 85%.

Applications of Conjugated Rings
Application in eucalyptus oil fractionation unit
The metal conjugated ring replaces the original copper wire mesh corrugated packing in a small eucalyptus oil fractionation device in a factory, which can overcome the phenomenon of frequent blockage. Due to the small pressure drop and stable operation, the annual cost of saving electricity is 15,000 yuan. , Since the non-ferrous metal copper material is replaced by carbon steel material (the filler needs to be replaced every six months in the past), the annual investment can be saved about 20,000 yuan, and its benefits are considerable.
Application in sulfuric acid production
The ceramic conjugated ring is used in the absorption tower of the small and medium-sized sulfuric acid plant with an annual output of 10,000t and 40,000t of sulfuric acid. Compared with the original stepped ring packing, the operation is stable, the gas pressure drop is small, and there will be no problems in long-term use (more than 3 years).
Application in aeration towers and exhaust gas discharge towers

The plastic conjugated ring is used in the aeration tower of the water supply equipment of a pharmaceutical factory, which can achieve stable operation, while in the absorption tower for the treatment of malodorous gas discharged from the dryer of a tobacco factory, the mass transfer effect is very good, and the odor is greatly reduced. .