The present invention provides a method for recycling of the waste silicasand used in casting and for recycling of coal provided together with wastesilica sand. Waste silica sand may comprise dirt such as coal powder,...The present invention provides a method for recycling of the waste silicasand used in casting and for recycling of coal provided together with wastesilica sand. Waste silica sand may comprise dirt such as coal powder,bentonite and resin as a result of metal casting process. The recyclingmethod for waste casting sand can be applied manually or automatically,and in general, the method comprises a water alkalizing step to be usedin washing。展开更多
文摘The present invention provides a method for recycling of the waste silicasand used in casting and for recycling of coal provided together with wastesilica sand. Waste silica sand may comprise dirt such as coal powder,bentonite and resin as a result of metal casting process. The recyclingmethod for waste casting sand can be applied manually or automatically,and in general, the method comprises a water alkalizing step to be usedin washing。
