The present invention relates to an electrostatic spraying system (10) for electrostatic spraying an object, the system (10) comprising an air-assisted electrostatic spraying device (14) and an airflow channel (12), wherein the spraying device (14) is positioned in the airflow channel (12) and comprises a spray nozzle (16), said spray nozzle (16) is configured to provide an electrostatically charged spray plume in the direction of the object. The airflow channel (12) is configured to provide an airflow in the direction of the object to be sprayed and successively comprises a first part comprising an air inlet, a second part for providing a venturi effect, and a third part comprising an air outlet. The air-assisted electrostatic spraying nozzle (16) is positioned in the third part of the airflow channel (12) and wherein the third part is configured to provide an airflow surrounding the electrostatically charged spray plume. The invention further relates to the use of the spraying system (10) and method.
The present invention relates to an electrostatic spraying system (10) for electrostatic spraying an object, the system (10) comprising an air-assisted electrostatic spraying device (14) and an airflow channel (12), wherein the spraying device (14) is positioned in the airflow channel (12) and comprises a spray nozzle (16), said spray nozzle (16) is configured to provide an electrostatically charged spray plume in the direction of the object. The airflow channel (12) is configured to provide an airflow in the direction of the object to be sprayed and successively comprises a first part comprising an air inlet, a second part for providing a venturi effect, and a third part comprising an air outlet. The air-assisted electrostatic spraying nozzle (16) is positioned in the third part of the airflow channel (12) and wherein the third part is configured to provide an airflow surrounding the electrostatically charged spray plume. The invention further relates to the use of the spraying system (10) and method.
B05B 5/03 - Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas
B05B 7/00 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
B05B 1/28 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with integral means for shielding the discharged liquid or other fluent material, e.g. to limit area of sprayNozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with integral means for catching drips or collecting surplus liquid or other fluent material
The present invention relates to a method for purifying polluted air containing pollutants preferably ammonia, dust, microorganisms, such as bacteria, endotoxins and viruses, wherein the method comprises the successive steps of a) introducing the polluted air to be purified into an air treatment device, b) electrostatically treating the polluted air by electrostatic charging of the pollutants contained in the polluted air, c) capturing the electrostatically charged pollutants in the air treatment device, and d) discharging purified air from the air treatment device, wherein the method further comprises the step of pre-treating the polluted air so that it has a relative humidity of preferably at least 90% and wherein the electrostatically treatment comprises the successive steps of b1) applying a dry electrostatic treatment, followed by b2) applying a wet electrostatic treatment. The invention further relates to an air treatment device for performing the method and use of such a device.
B01D 53/32 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by electrical effects other than those provided for in group
The present invention relates to a method for purifying polluted air containing pollutants preferably ammonia, dust, microorganisms, such as bacteria, endotoxins and viruses, wherein the method comprises the successive steps of a) introducing the polluted air to be purified into an air treatment device, b) electrostatically treating the polluted air by electrostatic charging of the pollutants contained in the polluted air, c) capturing the electrostatically charged pollutants in the air treatment device, and d) discharging purified air from the air treatment device, wherein the method further comprises the step of pre-treating the polluted air so that it has a relative humidity of preferably at least 90% and wherein the electrostatically treatment comprises the successive steps of b1) applying a dry electrostatic treatment, followed by b2) applying a wet electrostatic treatment. The invention further relates to an air treatment device for performing the method and use of such a device.
B01D 53/32 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by electrical effects other than those provided for in group
An electrostatic spray chilling system is configured to rapidly cool foodstuffs. A conveyor traverses foodstuffs through a chilling tunnel. A chilled primary airflow is provided to the chilling tunnel to cool the foodstuffs. As the foodstuff is traversed through the chilling tunnel, spray modules generate and apply sprays of electrostatically charged fluid onto the foodstuff. The charged fluid droplets are attracted to the grounded foodstuff. The charged fluid droplets can be guided onto the foodstuff by secondary fans, configured to generate subflows of the chilled primary air, and by air guiding baffles.
patents
