초록 ▼

An industrial painting method and system utilizing a washer, dry-off oven, spray booth, and bake oven, in which solvent paint vapors from the spray booth are concentrated in a filter which is subsequently degassed by a flow of hot air from the dry-off oven, and the degassed vapors admixed with the a

An industrial painting method and system utilizing a washer, dry-off oven, spray booth, and bake oven, in which solvent paint vapors from the spray booth are concentrated in a filter which is subsequently degassed by a flow of hot air from the dry-off oven, and the degassed vapors admixed with the atmosphere of the bake oven. The bake oven atmosphere is continuously circulated to the washer and burned in the burner of the washer to incinerate solvent vapors, and the gasses produced by incineration are transported to the dry-off oven to form the atmosphere thereof. The principal exhaust from the system occurs from the dry-off oven and is substantially free of solvent vapors and of low temperature.

대표청구항 ▼

In an industrial painting system including a spray booth and a bake oven, a method for the removal and disposal of the paint solvent contained in the spray booth exhaust gas discharged from the spray booth comprising, (a) passing solvent laden exhaust gas from said spray booth through a filter capab

In an industrial painting system including a spray booth and a bake oven, a method for the removal and disposal of the paint solvent contained in the spray booth exhaust gas discharged from the spray booth comprising, (a) passing solvent laden exhaust gas from said spray booth through a filter capable of adsorbing said solvent from said spray booth exhaust to remove said solvent from said exhaust; (b) degassing said filter by passing through said filter a gas such that the pressure drop across said filter is less than about six inches of water, said gas having a velocity and temperature sufficient to remove said solvent from said filter such that the solvent concentration in the gas exhausted from the filter does not exceed the lower explosive limit for the solvent; (c) introducing said filter exhaust to said bake oven to increase the solvent concentration in the bake oven atmosphere; said degassing gas velocity and temperature being so selected that upon introduction of said filter exhaust to said bake oven, the solvent concentration in the bake oven does not exceed the lower explosive limit of the designed theoretical level of operation of the brake oven; (d) removing a portion of the atmosphere of the bake oven from the bake oven and incinerating said bake oven atmosphere so as to oxidize said solvent to non-polluting combustion products and thereby dispose of said solvent.