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The Key Equipment in the Sand Making Industry

1 November, 2012 at 6:53 am in Business

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jocelyn wang

Location : china

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In recent years, the rapid development has brought an increased demand for the river sand, which is one of the key sources for construction material. Therefore, the legal river sand mining plays an increasing important role in the economy development in current society.
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 mainly consists of the feed hopper, classifier, impeller, main bearing assembly base, transmission device and motor and so on.
The following is the working principle of the vertical shaft impact crusher, 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.
Henan Hongxing Mining Machinery Co., Ltd. is a professional and well known vertical shaft impact crusher manufacturer in China, who can provide the best impact crusher for customers. Welcome to visit Hongxing Company.


cement kiln : http://www.hxjq-crushers.com/news_141.htm
gravity spiral chute : http://www.ore-mills.com/gravity-spiral-chute.html

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