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MGB series Hopper Discharge Feeder

Vibrating feeder is also called vibrating feeder. In the production process,...

MZA/K Series Circular Vibrating Screen

MZA / K series vibrating screen is a new round vibrating screen product base...

MF Series Fixed Shaft Circular Vibrating Screen

MF Series vibrating screen is a new round vibrating screen product based on ...

MC Series Single-Cylinder Hydraulic Cone Crusher

MC series single cylinder hydraulic cone crusher is developed from European ...

MJ Series Jaw Crusher

MJ series jaw crusher is mainly used as coarse crusher. It is made of advanc...

ML Series Vertical Shaft Impact Crusher

Ml series impact sand making machine is a brand new structure of ML impact s...

MS Series Triaxial Horizontal Screen

MS series three-axis elliptical vibrating screen is an international level v...

MGD Series Vibrating Feeder

Vibrating feeder is also called vibrating feeder. In the production process,...

Hydraulic drives in open cast mines

  • KBM Enginneering Drives

    About Us. THE KABAMAKGOPA ENGINEERING DRIVES (Pty) Ltd is a well-established and focused specializing mechanical engineering company. We manufacture and repair hydraulic and pneumatic components (e.g. cylinders, pumps, motors, hoses, and valves) and gear transmission devices utilised by earthmoving equipment of all makes, either in open cast mining or underground mining.

  • Hydraulic Impacts of Quarries and Gravel Pits

    Aggregate mining is an extractive use of resources: mining alters the landscape and its natural hydrologic system. When a new pit or quarry is proposed or when an existing operation needs to expand, local governments and citizens typically have many questions about the impacts mining might have.

  • Apron Feeders McLanahan

    Apron Feeder flights can be supplied in cast manganese or fabricated, formed steel to fit the duty requirements of the application. This gives ultimate flexibility in having the right feeder duty for the application. Apron Feeder drive systems can be supplied in electrical-mechanical or hydraulic to match the duty and requirements of the

  • FMIH Hydraulic Driven Self-Priming Ag/Industrial

    Volute: Cast iron rugged construction with tapped openings provided for priming, venting and draining. Impeller: Semi open cast iron, non clogging, designed for water but capable of mud, sand and silt up to 10% by volume. Mechanical Seal: Standard carbon/ceramic faces,

  • Protecting Truck Drivers From Falling into Open Pit Mines

    On open-pit haul roads on mine sites, to protect the truck drivers from falling over the edge of the road to the bottom of the pit, there is a pile of rock c

  • hydraulic drives in open cast mines

    hydraulic drives in open cast mines. ab0cd Sub-sectoral Environmental and Social Guidelines: Mining Open Cast. common to both open cast and underground mining operations.) Open cast mining involves the removal of ore from seams relatively near the surface by means of an open pit (see figure below). These mines often occupy a large area of land

  • Coal mining - Choosing a mining method Britannica

    Coal mining - Coal mining - Choosing a mining method: The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods, and the choice of which method to use in extracting a coal seam depends on many

  • Highwall mining - SlideShare

    Feb 17, 2013· Highwall mining 1. HIGH WALL MINING TECHNOLOGY CHANDAN CHAMAN 2. Highwall miner @ site 3. What is HIGHWALL MiningMining Coal from a visible, horizontal or inclined coal seam, making rectangular, parallel, unsupported entries, with unmanned cutter head and coal transport system, which is remotely controlled from a mining unit positioned outside the drive, in front of highwall.

  • PC8000-6 - Mining Excavators / Shovels America Corp

    The power train consists of two main drives. Each of the two gearboxes drives four identical main pumps which draw hydraulic oil from an unpressurised hydraulic tank. Open circuit hydraulics provide maximum cooling and filtering efficiency.

  • WELCOME TO JAG HYDRAULICS

    Jag Hydraulics repairs and refurbishes hydraulic equipment including rotary connection, track adjustors, final drives and nitrogen charged front and rear suspension. We also feature a large variety of service exchange units from open cast to underground mining.

  • Mobile hydraulics - Precise and reliable solutions Danfoss

    Our engineers are constantly working to help deliver precise and reliable mobile hydraulic control to advanced machines like yours. From propulsion and steering, to work function and power management, Danfoss is committed to helping you improve machine performance and decrease your time to market.

  • Belt Conveyor Drives & Components Voith

    The Voith TurboBelt TT Linear Booster Drive is typically used in both underground and open-cast mining belt conveyor systems. Significant cost savings in belt conveyor systems The Voith TurboBelt TT Linear Booster Drive is a powerful and productive intermediate drive for belt conveyors.

  • Large Hydraulic Direct Drives in Mining Operations E & MJ

    Pressurized hydraulic fluid is fed into the cam chambers; the fluid moves the pistons, which are mounted around the drive shaft, in a radial direction, rotating the drive shaft. The radial piston motor has a very high efficiency rateclose to 97%approaching the energy transfer efficiency of a roller bearing.

  • Design of Surface Mine Haulage Roads - A Manual

    the Bureau of Mines undertook a project to produce a design manual that would ultimately guide surface mine road planners toward safer, more efficient haulage systems. Such a manual did not exist prior to the conclusion of this project. This manual was produced under a contract let by the Bureau of Mines to Skelly and Loy Engineers and Consultants.

  • Mining - Dredging Britannica

    Mining - Mining - Dredging: Dredging is the underwater excavation of a placer deposit by floating equipment. Dredging systems are classified as mechanical or hydraulic, depending on the method of material transport. The bucket-ladder, or bucket-line, dredge has been the traditional placer-mining tool, and it is still the most flexible method for dredging under varying conditions.

  • Hydraulic Drive Pumps - Aussie Pumps

    Available in either cast iron or cast 316 stainless steel, the hydraulic drive tanker pumps are employed by the Royal Australian Army Engineers Corp, and are used on mine sites and in construction locations around the country. Called the Aussie GMP dust buster range, they offer flows of up to 2,500 litres a minute, with heads as high as 100 p.s.i.

  • Applications of Queuing Theory for Open-Pit Truck/Shovel

    Dec 19, 2012· Surface mining is the most common mining method worldwide, and open pit mining accounts for more than 60% of all surface output (Hartman & Mutmansky, 2002). Open pit mining consists primarily of the removal of topsoil and overburden, drilling and blasting of ore, and the transportation of material using a system of shovels or excavators and

  • Heavy lifting Mammoet Cranes Equipment

    Now this system is used for moving mining equipment around the world. By avoiding the complexities, cost and time required to dismantle, move and reassemble large and heavy equipment like draglines, open cast mining companies have much greater flexibility in exploiting mineral deposits cost-effectively. Tailor-made lifting

  • Types of Drilling Methods used in Mining Boring Mining

    In such drive and electric motor or a diesel engine drive a water pump. Its pressure is used for rotation of drill rods through a hydraulic motor and also for hydraulic feed. Its main advantage is that speed can be varied from zero to a certain limit without any fixed ratios that are possible in a geared drive.

  • Dewatering Pumps Water Management SPP Pumps

    The SPP Pumps Dewatering range is a proven, versatile and comprehensive product range suitable for use in a variety of applications worldwide. This series of pumps are primarily sold to rental organisations, contractors, utility companies, open cast mines and municipalities providing a durable solution to any business pump application.

  • Selecting Pumps for Mining Applications Pumps & Systems

    Nov 05, 2019· Another issue with dewatering mines is low pH, or acidic water. It can wreak havoc on standard cast, ductile iron and aluminum pumps. To avoid this, upgrade the material to a 304, 316 SST, CD4MCU, HC600 or fiberglass.

  • What is Hydrostatic Transmission - Hydraulic Industry

    Simply, it is a hydraulic system where the hydraulic pump or an accumulator will drive the motor using the fluid passing through flexible hoses. In hydrostatic transmission, gears are not required for converting rotating mechanical energy from one source to another. Closed-circuit and open-circuit transmission are the two classifications of

  • Surface mining equipment Mining Corp.

    Mining Corp. is the worlds largest producer of electric mining shovels and a leading producer of surface mining equipment including blasthole drills, walking draglines and wheel loaders. We offer solutions worldwide for use in the mining and processing of essential minerals.

  • Full Hydraulic Surface Down-The-Hole DTH Drilling Rig

    Types of Full Hydraulic Surface Down-The-Hole (DTH) Drilling Rig for Sale. X5S is a full hydraulic surface drilling rig with cab, automatic rod changer and dust removal system. It is suit for open-pit mining. It features high efficiency, durable, easy to maintain and high reliability. TAIYE-X45-DTH integrated hydraulic drilling rig,efficient

  • Pentair Hypro 9303 Series Centrifugal Pumps Pentair

    The Hypro 9303C & 9303S Series hydraulic motor driven, cast iron and stainless steel centrifugal pump achieves a max of 147gpm and 145psi. Available in cast iron and 316 stainless steel for extended pump life. Hydraulic motor drive (for open center, closed center and load-sensing systems)

  • Long-lasting Apron Feeder increases productivity I FL

    The feeder is driven by a conventional frequency-controlled electric motor and a planetary reducer, or by a hydraulic drive. The robust hydraulic drive showcases variable speed functionality and the ability to provide full starting torque for an unlimited time. These hydraulic drives have a unique capacity to handle the starts, stops and heavy

  • Underground Mine Backfilling in Australia Using Paste

    May 13, 2015· Underground mine backfilling is a form of ground improvement that has to be carried out in the mine sites. The backfilling provides ground support and regional stability, thus facilitating ore removal from nearby regions. The large underground voids created by the ore removal are backfilled with the waste tailings in the form of paste fills, hydraulic fills, and others.

  • Hydrostatic Drives Machine Design

    Nov 15, 2002· Drive configurations: Hydrostatic transmissions usually take one of two general configurations, split or close coupled. A split transmission consists of a power unit with the hydraulic

  • 6090 FS Hydraulic Mining Shovels

    We understand the challenges you face, the importance of reliability, and the relationship between uptime and productivity. That's why we continually strive to produce the safest, most reliable and productive hydraulic mining shovels possible. Offering the widest payload range of any manufacturer in the industry, the ability to optimally pair with our popular line of mining trucks, and the

  • Open-pit mining - Wikipedia

    Open-pit mining, also known as mega-mining, open-cast or open cut mining, is a surface mining technique of extracting rock or minerals from the earth by their removal from an open-air pit, sometimes known as a borrow.. This form of mining differs from extractive methods that require tunnelling into the earth, such as long wall mining.Open-pit mines are used when deposits of commercially useful

  • Bucket Excavators Flender

    In open-cast mines, the first material mining step is handled by bucket wheel excavators of different sizes and with different power ratings. With their huge dimensions, these are the biggest existing machines. Bucket wheel excavators need drives on the bucket wheel itself, on the conveyor belts, on the slewing gear, on the crawlers, and at

  • Ultra Large Hydraulic Excavators and Dump Trucks for Large

    and dump trucks for large open-pit mines. OVERVIEW: The high performance and superlative reliability of Construction Machinery Co., Ltd.s ultra large hydraulic excavators have earned them the leading share of the international open-pit mine market. In the field of dump trucks, meanwhile, a new 190-t class model went on sale in

  • Drives & Motors Allen-Bradley

    These drives offer a motor current up to 720 A, for synchronous or induction motors. Our PowerFlex 6000 drives meet applications that require variable speed motor control from 2.211 kV, with motor current up to 680 A. These easy-to-use drives are well-suited for variable torque applications like simple, standalone centrifugal fans and pumps.

  • Surface Mining Methods and Equipment

    1.1.Classification of Surface Mining Methods 1.2. Open Pit vs. Underground Mining Methods 1.3. Open Pit Mining 1.4. Open Cast Mining 1.5. Placer Mining 1.6 Solution Mining 2. Surface Mining Machinery Glossary Bibliography Biographical Sketches Summary This chapter deals with surface mining. Section 1 presents an overview of surface mining

  • List of Equipment Used in Opencast Coal Mining Mining

    Hydraulic shovels which eliminate use of wire ropes (cables) have become popular in recent years. The electric motor or diesel engine mounted on the shovel drives the hydraulic pump and the pressure developed is utilised for various operations of the shovel. Hydraulic motors are of low speed, high torque with hydrostatic braking.

  • Low-speed/high-torque motors Hydraulics & Pneumatics

    Jan 01, 2012· Low-speed/high-torque (LSHT) motors are one of the more cost-effective and dependable parts of a hydraulic system. They offer a designer many advantages over a system comprised of a high-speed motor and a gearbox speed reducer. Foremost is the fact that LSHT motors transmit a large amount of power from a comparatively small drive envelope.

  • Drilling in mining - SlideShare

    Apr 07, 2014· Weather conditions Site factors and job site conditions 1. nature and scope of task, 2. achievement targets, working conditions, 3. site lighting conditions, 4. defects on equipment, hazards and 5. coordination requirements/issues. 6 The most common diameters for blast hole adopted in Indian open cast coal mines are 150-200 mm for coal benches

  • Open-center hydraulic system Article about open-center

    This is powered by a pair of engine-driven gear pumps which supply flow through the open-center hydraulic system, also powering the three-point hitch, steering and auxiliary remotes. The open-center hydraulic system includes a tandem pump hydraulic system that eliminates multiple pump drives. Each machine features an open-center hydraulic

  • Surface mining - Wikipedia

    Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which the overlying rock is left in place, and the mineral is removed through shafts or tunnels.

  • Open-pit Mining Simulation by MOSIMTEC - YouTube

    Apr 25, 2013· This video demonstrates the benefits of using simulation in the mining industry. Benefits range from validating design, stakeholder communication, determinin

  • Ngezi Platinum Group Metals Mine, Zimbabwe - Mining

    Ngezi open-pit mining. Ore reserves at Ngezi lie at a depth of between 20m and 50m below the surface. After waste stripping, production mining is carried out in 3m-high benches within the 20m to 50m depth zone, with the waste rock being backfilled and worked-out areas rehabilitated on a continuous basis.

  • How a focus on equipment performance productivity returns

    major mining regions. For the latter, we have drawn upon 20 years of operating performance data from 136 mines and 4,760 individual machines in all, this represents more than 47 million operating hours. Key findings The global mining industrys open cut equipment productivity (ie annual output /

  • Productivity Considerations for Shovels and Excavators

    The remainder of the time is spent waiting or idling (9%). Some time is dedicated to clean up work (5%). The shovel is offline 3.5% of the time and it propels to a new digging position 3.1% of the time. Siemens builds drive systems for electric shovels. The cycle time for an electric shovel differs slightly from a hydraulic excavator.

  • Case Study: Inflow of Groundwater into Open-Cast Mine

    Jul 07, 2004· In November 1997 an outflow of up to 0.4 m 3 / s of groundwater from deep seated aquifers occurred in the open-cast lignite mine of Hambach, Germany. Although this incident was technically under control and did not affect the mining activities, it was studied in a joint research project to exclude recurrences at other locations.