Device in a process engineering column

In combination

• a plurality of parallel spaced apart passages for receiving liquid therein, each said passage having a pair of upstanding walls, each said wall having a pair of apertures therein;
• at least one carrier beam disposed transversely of and over said walls of said passages, said beam having a pair of parallel depending walls, one of said walls of said beam having an elevation therein and each of said walls of said beam having at least a pair of hook-like recesses receiving said upstanding walls of a respective passage therein and a pair of hooks disposed in said apertures of said received wall;
• and
• at least one sheet metal plate slidably mounted on one of said walls of said carrier beam in parallel relation to said one wall, said plate having a pair of slots receiving said walls of said respective passage therein and a recess receiving said elevation of said beam therein to releaseably secure said respective passage and said carrier beam together.