ABSORBING FILTER FOR CLEANING AIR FROM TOXIC SUBSTANCES Russian patent published in 2012 - IPC B01D50/00 B01D53/46 

FIELD: process engineering.

SUBSTANCE: invention relates to sorption appliances and serves to clean air of chemically harmful substances. Absorbing filter comprises case with bottom, detachable cover with bolt-on flange joint, inlet and outlet branch pipes, axial stud with press nut, coaxial filtration element and formed sorption unit. Sorption unit consists of hollow cylinder made up of carbon-containing sorbent and thermoplastic polymer. Inlet branch pipe is rigidly jointed to cover bottom. Additionally, filter incorporates inlet branch pipe attached to case bottom and T-joints connected to inlet branch pipes and stud for tight pressure of filtration element and sorption unit to case cover and bottom. Carbon-containing sorbent is impregnated with compounds of copper, chromium, silver and triethylene amine while sorption unit incorporates chemical absorber impregnated with nickel sulphate solution.

EFFECT: higher dynamic activity, reliable seal of filtration element and sorption unit.

1 dwg