A quarry is a place from which dimension stone, rock, construction aggregate, riprap, sand, gravel, or slate has been excavated from the ground. A quarry is the same thing as anopen-pit mine from which minerals are extracted. The only trivial difference between the two is that open-pit mines that produce building materials and dimension stone are commonly referred to as quarries. But do you know the major problems of quarry machines in CHINA?
1. A serious shortage of investment, illegal operation: Quarry equipment owner to reduce the mining cost, not to make the necessary input, extensive use of artificial engaged in the exploitation of more primitive, process and equipment.All quarries are not in accordance with the provisions of the "three simultaneity" construction production safety, regardless of their stage of top-down mining, violation of operating procedures to use desktop drill lateral drilling or from down to up,Blaster violations, explosion cut hole blasting or fry the umbrella eaves;Individual owners in a slope of rock at the bottom of the tao, the huge umbrella eaves and rock plate hanging in the sky, hundreds of cubic meters, for the following workers "taishan coping" streak, after the rain and more sunny weather easily to collapse and slide, the similar accident occurred in a row.
2. The investment scale of quarry machine not limit: More than one certificate mining or a mining face card more abundant small quarry mining. Small quarry owners tend to invest in ten yuan, employ more than 10 people around two mining processing mill, mining scale and specification cannot be achieved;The boundaries of the quarry is due to the dynamic control and mutual interference, cause difficult to dispute, neighbors mining out of sync, form the safe hidden trouble.
3. Lack of effective supervision and management for mining: According to the current production safety laws, regulations and department rules and regulations, safety in production law enforcement main body for the government and relevant departments at or above the county level, township government can only work in the general inspection, not the quarry and other township enterprises for safe production law enforcement investigation.
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