Installation for the treatment of objects in a defined gas atmosphere, whose O2 content is smaller that that of air and with which environmentally damaging treatment gases are produced

Abstract

An installation for the treatment of objects in a defined gas atmosphere whose oxygen content is smaller than that of air and with which environmentally damaging treatment gases are produced with a housing with an entry opening and with an exit opening for the objects passing through, conveyed through the housing, with a first treatment zone in the housing, which comprises the entry opening and which produces the treatment gas for the production of a process gas atmosphere, with a second treatment zone which is connected to the exit opening and which is connected to the first treatment zone via a passage opening for the objects and in which the atmosphere is lean of treatment gas and oxygen, with a circulation for the process gas with which a ventilator suctions process gas from the first treatment zone and sends it via a filter device which holds back the treatment gas, with a first sluice which is allocated to the entry opening and which is flowed upon by the purified process gas coming from the filter device, with a second sluice in the second treatment zone, which is allocated to the passage opening and which likewise is flowed upon by purified process gas, with a third sluice which is allocated to the exit opening and which is connected to a source for inert gas under pressure and with an outgoing air branch for process gas, which in the conveying direction of the objects lies in front of the process air supply, connected to the first sluice.

Dependencies are inferred from the claim text.