Verfahren zum Bildröhrenrecycling

摘要

To recycle cathode ray tubes, the ventilated tubes are separated about 1 cm below the upper end of the upper section, between the lower and centre section and between the centre and upper secions. The coating is removed from the lower and centre sections. The glass material is sepd. by types, and passed to recycling, and the sepd. metal components are transferred to recycling. Where two different glass types are against each other, the sepn. point is selected where they are bonded together or 5 mm from the glass bonding point in two cuts, to remove the whole glass bonding area. Where the glass of the lower and centre sections are of the same type, the sepn. is where the stronger glass of the lower section changes to the weaker glass of the centre section. The removal of coating from the lower section is by dry suction after it has been lightly detached mechanically by scraping. The remainder of the coating is removed by rinsing, or it is removed in a single operation by high pressure rinsing with a fluid containing fine grinding material. The coating from the centre section is removed in a single operation with acid or high pressure rinsing with a fluid contg. fine grinding matter. USE/ADVANTAGE - For the disposal of CRTs of various types, and for the recycling of the component materials. The operation recovers the usable materials in a cost-effective system to process a large volume of CRT