Recent years, rapid development has brought an increased demand for river sand as a source of construction material. The legal river sand mining plays an important role in the society economy development.
River sand mining process:
In the river sand mining process, vertical shaft impact crusher is the key equipment in the sand-making industry. Vertical shaft impact crusher is widely applied in the powder process of mineral product including mental and non-mental ore, bauxite, fireproof material, diamond dust, architectural materials, artificial sand, glass raw materials and all kinds of metal ore materials, especially which has more advantages than any other machines in processing the hard materials.
The vertical shaft impact crusher includes feed hopper, classifier, impeller, main bearing assembly base, transmission device and motor and so on.
The following is the working principle: the raw materials enter into the crusher through feeder hopper which is divided into two parts, one part through the middle of classifier entering into the rotating impeller at high speed, then accelerated, whose speed can reach hundreds of acceleration, and then is shot through the tunnels around the impeller by the speed of 60~75 meter/second.
The materials firstly will impact with some materials fallen around classifier, then impact on the whirlpool cavity's scale board together, then will be rebounded and impact on the top of the whirlpool cavity. Next its direction should be changed and go down. Some materials will be impacted, crushed, milled twice or more times in the whirlpool cavity. The crushed materials will be excluded through the bottom discharging hole. This can form a closed circulation through the circular classifier system. In general, materials can be crushed into 20 meshes through thrice circulation. Airflow self-circulation in the whirlpool cavity can eliminate the dust pollution well.
River sand mining machine for sale:
The mentioned vertical shaft impact crusher is the main mining machine from Shanghai Zenith. Based on the high quality and advanced technology, it has been widely applied in river sand mining process. It also brings large amounts of profits to customers. Zenith always puts you first and keeps you ahead.