INSTALLATION FOR RECYCLING OF LUMINESCENT LAMPS AND METHOD FOR THEIR RECYCLING Russian patent published in 2009 - IPC B07B9/00 B09B3/00 C09K11/01 H01J9/50 B03B9/06 C22B43/00 

FIELD: technological processes.

SUBSTANCE: invention is related to the field of environment protection and may be used to recycle spent and defect luminescent lamps. Installation for recycling of luminescent lamps includes system of exhaust ventilation connected to chamber of lamp breakage cleaning from phosphor equipped with loading unit with flap gate and grinder, and also unit for unloading of cleaned components of lamp breakage. Chamber of lamp breakage cleaning from phosphor is arranged in the form of double cyclone that consists of coaxial upper and lower cyclones, besides, upper cyclone is partially located in lower cyclone and is equipped with loading unit with tangential nozzle for input of air mixture of lamp breakage fractions. Lower part of lower cyclone is arranged in the form of collector of lamp breakage components cleaned from phosphor, which represent mixture of relatively heavy fractions, and is equipped with unit for unloading of these fractions, which is arranged in the form of hinged flap gate. In upper part of lower cyclone, which is located higher than output cut of upper cyclone, tangential nozzle is installed, being connected to system of exhaust ventilation for exhaust of air mixture of relatively light fraction, which represents powdery phosphor. Output cut of tangential nozzle of upper cyclone is oriented along with central vortex flow in this cyclone, and input cut of lower cyclone tangential nozzle is oriented opposite to peripheral vortex flow in lower cyclone. Method for recycling of spent luminescent lamps realised in above mentioned installation consists in the fact that recycled lamps are individually damaged, and central vortex flow of fractions air mixture is formed from lamp breakage, which is transformed into oppositely twisted peripheral vortex flow. From area of central vortex flow transformation lamp breakage is separated, as mixture of relatively heavier fractions, and also phosphor as relatively light fraction, which is sent for catching of phosphor. Relatively heavier fractions, in the form of lamp breakage cleaned from phosphor, are taken out by gravity to further processing.

EFFECT: improved efficiency of phosphor separation from lamp breakage, elimination of chemical demercurisation treatmentn, and also lower power inputs.

2 cl, 2 dwg