Plastic Raschig ring was developed by F. Rasching in 1914 and is the earliest type of random packing. It has a simple shape, and is a circular ring with the same height and diameter. Raschig ring is a ring-shaped packing with a fixed geometric shape. Raschig ring has excellent acid and heat resistance, and can resist corrosion from various inorganic acids, organic acids and organic solvents except hydrofluoric acid. It can be used in various high-temperature occasions and has a wide range of applications. It can be used in drying towers, absorption towers, cooling towers, washing towers, regeneration towers, etc. in chemical, metallurgical, gas, environmental protection and other industries.

Material of plastic Raschig ring packing:

Plastic Raschig ring packing is mainly divided into: polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyvinylidene (PVDF), chlorinated polyvinyl chloride (CPVC), reinforced polypropylene (RPP), etc. According to different requirements, the materials used are different. The most commonly used ones are pp Raschig ring, PVC Raschig ring, RPP Raschig ring, etc.

Characteristics of plastic Raschig ring packing:

The characteristics of plastic Raschig ring packing are: simple structure and low price, but the disadvantages of Raschig ring are uneven liquid distribution and serious wall flow channeling. Now corrosion-resistant ceramic Raschig rings are generally used in the acid industry.

Application of plastic Raschig ring packing:

Plastic Raschig ring packing has a wide range of applications and can be used in drying towers, absorption towers, cooling towers, washing towers, regeneration towers, etc. in industries such as petroleum, chemical industry, metallurgy, coal gas, and environmental protection.