초록 ▼

An apparatus for the continuous cleaning of solvent containing waste air operates in two phases with two identical receiving towers each with at least one microwave generator and one common vacuum evaporator. In a cleaning phase, the waste air is conducted through a first tower, where the solvents a

An apparatus for the continuous cleaning of solvent containing waste air operates in two phases with two identical receiving towers each with at least one microwave generator and one common vacuum evaporator. In a cleaning phase, the waste air is conducted through a first tower, where the solvents are extracted from the waste air in a closed evaporator container by a receiving medium adsorbing substances of low polarity, and pure air is exhausted to the atmosphere. As soon as the receiving medium is saturated, the first tower is switched to a regenerating phase, in which the waste air is simultaneously conducted through the second receiving tower during its cleaning phase while a vacuum evaporation device and an associated microwave generator is switched on in the first receiving tower. At a low temperature, the solvents evaporate from the evaporator container isolated in the first tower and condense to collect as reusable solvent in a collecting container. After termination of the regenerating phase of the first tower and the cleaning phase of the second tower, the described process is repeated.

대표청구항 ▼

An apparatus for the continuous cleaning of solvent containing waste air with a regenerable receiving medium, for the exhausting of substantially pure air into the atmosphere, for the regeneration of the receiving medium and for the recuperation of the solvent, the apparatus having two receiving tow

An apparatus for the continuous cleaning of solvent containing waste air with a regenerable receiving medium, for the exhausting of substantially pure air into the atmosphere, for the regeneration of the receiving medium and for the recuperation of the solvent, the apparatus having two receiving towers each containing an evaporator housing for the receiving medium and at least one microwave generator, a vacuum pump and a condenser, comprising: an evaporator container formed of material neutral to microwaves enclosed by and spaced from all walls of an evaporator housing of a receiving tower, said evaporator container containing a receiving medium for the preferred reception of substances of low polarity; a pressure equalizing device connected between an interior of said evaporator housing and an interior of said evaporator container; an intake stack adapted to be connected at one end to a source of solvent containing waste air and connected at an opposite end to said interior of said evaporator container; and an exhaust connector open at one end to the atmosphere and connected at an opposite end to said interior of said evaporator container.