The invention provides a recycling method of waste toner cartridges, which comprises the following steps: 1) primary crushing: crushing the waste toner cartridges into coarse toner cartridges with a particle size of 40-60 mm by a double-tooth roller crusher; 2) carbon powder separation: removing the residual carbon powder in the coarse fragments of the selenium drum by using a pulse bag filter; 3) secondary crushing: the coarse fragments of the toner box removed in step 2) are processed into fine fragments of the toner box with a particle size of 6-8 mm by a vibration mill; 4) Recovery of magnetic substances: separating the magnetic substances and non-magnetic substances in the fine powder of the selenium drum by a magnetic separator; 5) Secondary cleaning: using a high-pressure air flow cleaning machine to perform secondary cleaning on non-magnetic substances; 6) Separation of non-magnetic metals and other substances: Non-magnetic substances are treated by vortex separators. The invention can effectively improve the separation and recovery efficiency and purity of each component of the selenium drum, and improve the utilization degree of resources.
The rapid growth of modern office equipment has also brought about an annual increase of 30% in supporting consumables such as ink cartridges and selenium drums. However, these non-degradable consumables are discarded as garbage, which not only wastes resources, but also increasingly threatens people's living environment. After the initial disassembly of the selenium drum, the photosensitive drum, plastic cover, gear, magnetic rod cover, magnetic rod, plastic cup, scraper, shaft, screw, spring, pin and plastic shell (including powder bin and waste powder bin) can be obtained. The materials of selenium drum include plastic, iron, magnetism, aluminum, copper sheet, soft substance and toner.
[0003] In the waste toner box, toner is the most harmful to human body, and its main component, carbon black, has carcinogenic effect. If the recycling of solid waste such as selenium drum can not achieve the purpose of being beneficial to the environment and saving, the pollution and waste of resources will not be ignored.