Silicon nitride balls have long service life, but a small number of waste and defective balls will still be produced in industrial production. As an environmentally friendly ceramic material, waste silicon nitride balls can be recycled and reused to realize resource circulation and reduce industrial waste.
Defective balls produced in the production process are the main recycling objects. Balls with dimensional deviation and slight surface defects are collected uniformly. After crushing and grinding, they are processed into silicon nitride micro-powder for low-end ceramic accessories production.
Scrapped industrial used balls need surface cleaning first. Lubricating oil and dirt on the surface are removed by high-temperature calcination. The cleaned ceramic blocks are crushed to make wear-resistant ceramic filler.
Recycled silicon nitride powder can be used for refractory materials. High-temperature resistant refractory bricks contain recycled ceramic powder, which improves the high-temperature compression resistance of refractory bricks and reduces raw material cost.
Harmless disposal is adopted for unrecyclable waste balls. Silicon nitride is non-toxic and non-radioactive. After harmless compression treatment, it is buried in industrial waste landfill without environmental pollution.
The recycling system of silicon nitride balls reduces resource waste, lowers enterprise production cost and conforms to global industrial sustainable development policies. The recycling rate of waste balls will continue to improve in the future.
