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mine processing equipment for mineral sand

mine processing equipment for mineral sand

Common Types of Surface Mining Equipment Sand amp; Gravel ...

Dozers These are heavy, track mounted vehicles with a wide forward facing pusher blade at the front. While the blade is somewhat adjustable and can raise and lower, its used in a nearly vertical position to push mined material and dislodge layers of overburden. Primary Functions: 1. Clearing overburden 2. Managing piles 3. Building and maintaining roads Backhoes Backhoes can be wheel or track mountedwith an articulated boom and an inward facing bucket for digging and scalingjobs. This type of equipment can range in size and is often used throughout themine for a variety of digging functions. Primary Functions: 1. Digging holes, foundations, and trenches 2. Clearing overburden debris 3. Scaling rock walls 4. Loading material into trucks 5. Lifting and carrying heavy items 6. Breaking rocks with boom attachments Graders / Scrapers These are long, low, articulated,wheel mounted vehicles primarily used during overburden removal and roadbuilding...

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Front End Loaders Loaders are the workhorses of the surface mining industry, capable of excavating large volumes of material very quickly. These wheel mounted vehicles can have rigid or articulated frames with a wide, deep forward facing bucket at the front which can be hydraulically raised and lowered. Loaders commonly scoop large volumes of material into the bucket, move the material toward a haul truck, raise the bucket overhead, and dump the material into the bed of the truck. They may also dump excavated material onto a pile or into a hopper that feeds an in pit conveyor for transporting material to the processing plant. Primary functions: 1. Moving material, overburden, and large boulders as needed 2. Excavating material in the pit 3. Loading haul trucks and conveyors from a pile 4. Managing the base of a pile Power Shovels These are very large, track mounted diggingmachines with a forward facing bucket operated by cables and supp...

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Haul Trucks These are large trucks with beds thatcan be raised to dump transported material, often from the pit to a stockpile orprocessing facility. They can range widely in haul capacities from 40 tons tonearly 500 tons. Here are some examples of haul capacities and dimensions ofhaul trucks: 1. 146 tons 19.8 feet tall / 24.81 feet wide / 39.32feet long 2. 250 tons 23.21 feet tall / 20.06 feet wide / 43.83feet long 3. 320 tons 48.42 feet tall / 29.75 feet wide / 50.75feet long 4. 400 tons 51.5 feet tall / 32 feet wide / 49.5feet long Primary functions: 1. Transporting mined material 2. Transporting overburden or waste material In Pit Conveyors Often operating continuously overlong distances, these conveyors transport excavated material from the pit tothe processing facility. Primary functions: 1. Transporting mined material to a raw material stockpile or directly into the processing facility Overland Conveyors Designed to move high volumes,these powerful conveyors may ru...

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Processing mined material at a sand and gravel mine isprimarily a cleaning, filtering, and sorting process. Material is cleaned ofdebris, screened and separated size, and stockpiled by material type and dimension. Grizzlies A grizzly is the first stage in the screeningprocess, prohibiting oversized rocks and boulders in mined material from enteringthe processing plant. The grizzly is a set of slanted parallel bars placed afew inches apart. Boulders and rocks too large to pass between the bars willslide down and away from the grizzly. Material rejected by the grizzly may beeither crushed or used for other landscaping or erosion control purposes. Primary functions: 1. Prohibiting oversized rocks and boulders from entering the processing plant Screens A series of heavy duty,gravity fed screening decks of successively decreasing opening sizes are usedto separate and sort mined material. As material is fed into the series of screensfrom the top, each set of screen...

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Stack Conveyors At an aggregate mine, processed material is typically stored as inventory in stockpiles, largepiles of individually sized and graded stone, gravel, and sand. Stockpiles can range greatly in size from 15to more than 75 feet in height. While stack conveyors rise high above a pile to depositsorted material onto its stockpile by material type and dimensions, dozers andloaders may operate on or around the pile to ensure stability. Dozers mayoperate on large piles, pushing and distributing material to manage the pilesslopes from above. And loaders may manage the base of the pile to removeoverhangs or other potentially dangers conditions to avoid a unexpected slideor collapse. Primary functions: 1. Transporting processed material to designated stockpiles

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After material is fully processed, it can be shipped tocustomers in a variety of ways. It may satisfy orders for an individual commodity,a mix of commodities, or even as part of another finished product, such asconcrete in situations where a concrete batch plant may be located onsite. Over the road Trucks Common tractor trailer trucksthat operate on civilian roads and highways may pick up and haul materials toregional customers. These open topped aggregate trailers may be loaded by frontend loader or conveyor to an average capacity of about 25 tons. Railcars Finished product may be transported byrailcar at mines with a rail spur . Each individual railcar can transport a capacity of about110 tons of material. Barges Large volumes of commodities may be shippedto customers via barges for mines with shipping waterway access. Barges arecommonly loaded with material transported by overland conveyor from stockpiles atother loca...

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Generators Often diesel powered, onsite backupgenerators are stationary power plants designed to provide sufficient power tokeep critical processing equipment and lighting operational during a poweroutage. Primary functions: 1. Providing continuous or temporary electricity to power material processing Fuel Tanks With a broad range of equipment andvehicles that run on liquid fuel, mines often have onsite gasoline and dieselfuel tanks for accessible refueling. Fuel tank sizes can range from 500 to30,000 gallons, depending upon the need. Primary functions: 1. Providing onsite access to fuel Water Trucks Water trucks are typically rigid bodytrucks with a tank mounded on the back and a spray system that may distributewater in front of and behind the truck as it drives. Water trucks perform animportant role in reducing airborne silica dust, which can cause long term and potentiallyfatal respiratory diseases. Truck tank capacities can vary from 2,000 to 6,400gallon. Primary functions: 1...

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Mobile Equipment / Blind Spots Injuries andfatalities from material handing and powered haulage is very common at surfacemines. Mobile mining equipment is often very large and very loud. Drivers mayoperate the equipment within enclosed cabins with visibility and noability to audibly communicate with pedestrians without use of a radio. Vehicle blind spots can put workers on foot in dangeroussituations. And the larger the vehicle, typically, the larger the blind spot. Safety Tips: 1. Wear high visibility clothing. 2. Always give mobile equipment the right of way. 3. Stay out of vehicle blind spots at all times. 4. Always make eye contact with a driver beforemoving into an are where vehicles and mobile equipment are operating. 5. Communicate with vehicle operators via radio orhand signals to coordinate with the driver prior to approaching any vehicle inoperation. 6. Ensure the vehicle is completely stopped priorto approaching. Lifting Equipment Whether working around a forkli...

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Most surface mines will have an office and a maintenanceshop in addition to a range of other structures onsite. Here are some examplesof buildings and structures common at a surface mine: 1. Gate and guard station 2. Warehouse and storage facilities 3. Maintenance shop 4. Fuel tanks 5. Electrical room 6. Water reclamation plant and settling tanks/ponds 7. Truck wheel wash 8. Truck weigh station 9. Concrete ready mix batch plan 10. Rail spur 11. Barge loading dock

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