advantages and disadvantages of open pit mining

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Gravity separation is the main beneficiation method of chrome ore, and the equipment is jigger, shaking table, spiral classifier, centrifugal concentrator and spiral chute, etc. Sometimes it will also use weak magnetic separation or strong magnetic separa

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As a pure natural stone with high usage value, river gravel is formed in the long-term impact, squeeze and friction function. River gravel generally shows the color of black, white, yellow, red, green gray, etc. 

Open pit mining does offer some advantages over traditional deep shaft mining Pit mining is more cost effective than shaft mining because more ore can be extracted and more quickly The working conditions are safer for the miners because there is no risk of cave in or toxic gas

An open pit mining operation virtually eliminates any biologic life at the surface Vegetation is stripped and the surface at the dig site is left completely barren Without replanting and restoring the ecosystem a strip mining site can take decades to recover Abandoned mining pits can also pose extreme risks

Disadvantages of open pit mining However disadvantages when compared to Underground Mining also exist Very large amounts of waste rock are mined This creates costs as well as environmental issues with waste rock disposal Major disruption of surface pit footprint waste dumps High visual impact especially strip mining

The Advantages of Open Pit Mining Open pit mining does offer some advantages over traditional deep shaft mining Pit mining is more cost effective than shaft mining because more ore can be extracted and more quickly The working conditions are safer for the miners because there is no risk of cave in or toxic gas

Disadvantages It is harder than surface mining and it also costs more money and takes more time Advantages Leads to more minerals and ore also creates less pollution 1 2 3 Asked in Social

Advantages Disadvantages of Open Pit Mining The open – pit mining is profitable when the site is not very deep or when the soil is sandy or delicate so that underground mining is not possible Labour costs are lower both in excavation and transportation and allow the use of large machinery

Disadvantages of Openpit mining Answers Openpit opencast or open cut mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow This form of mining differs from extractive methods that require tunnelling into the earth such as long wall mining

Previous Next Open Cast Mining Advantages In the previous topic we saw which are some of the advantages that can make the surface open pit mining methods superior method compared to the underground mining However underground mining has its own advantages And finally the ultimate decision to mine from the surface or from underground comes down to the specific characteristics of

Jan 15 2018 · The cost of open pit mining is generally 50 75 lower than the cost of underground mining which is conducive to largescale exploitation of lowgrade ore The main drawbacks of open pit mining arethe occupation of land the surface is destroyed the environment is contaminated