Thyssenkrupp robins products bridge type bucketwheel. Presentation on bucket wheel excavator submitted by, birendra kumar roll no. With hundreds of references, thyssenkrupp has the storage equipment for all applications. Similarly, portal reclaimers, bucket wheel reclaimers and bridgebased reclaimers have seen their fair share of popularity in national, as well as international industries as part of award. Bucket wheel reclaimers are familiar at triangular piles, trapezoidal piles and at trapezoidal piles with side banks.
Bucket wheel stacker reclaimers travel on a rail track alongside the piles offering a possibility for selective stacking and recovery of materials in different. Bruks customizable stacker reclaimer product line includes automated storage solutions for a wide variety of bulk materials. Our stacker reclaimers result in lower operating costs, increased storage and improved product quality. Graph of frequency vs month of malfunctioning of luffing system after modification conclusion thus finally by using modified type of pipe, we have a tangible benefits of rs 5, 23,300. Methodology to calculate the effective reclaiming capacity of. Coal handling along the supply chain sciencedirect. Available with either fully or semiautomatic control systems, these machines guarantee not only uniform reclaiming of stockpile but also the highest degree of economy and efficiency. Reclaimer in cement plant reclaimer operation this is bridge type reclaimer in cement plant. Stacker reclaimer for power station coaling installation and port product coaling installation power station 1x stacker reclaimer kss1825 str17500. The rated capacity is 2500 th for stacking and 1500 th for reclaiming. The bucket wheel drive will be of lt motor with traction type fluid coupling and planetary gears. Bucket wheel reclaimers are the ideal means of handling and moving large amounts of bulk materials in the shortest possible time.
With the strata method, a certain but very limited blending effect for the coal can be achieved. Scraper reclaimers use a series of scrapers on a chain to reclaim the material. Voestalpine bucket wheel reclaimer varl 1800 source. This paper focuses on the methodology to calculate the effective reclaiming capacity of railmounted bucket wheel reclaimers, and stacker reclaimers, for largescale raw bulk material handling systems. Elecon bucket wheel stacker reclaimermachine can stack the material to form the stockpile or reclaim the stockpiled material and feed onto themain line conveyor. The bridge type bucket wheel reclaimer is a largescale loading and unloading equipment for bulk materials with high efficiency and continuous operation. Simulation of bucket body of bucket wheel stacker reclaimer. The bucket wheel trolley on the main girder travels on eight vertical rollers.
Pdf preparation for turning a bucket wheel reclaimer into a. Bucket wheel stacker reclaimers richmond engineering works. It having c frame structure design having two hinge point one for boom and another one for counterweight boom, the luffing motion through hydraulic cylinders attached at counter weight boom side. Bucket wheel stacker reclaimer is a kind of largescale loadingunloading equipment developed for handling bulk materials continuously and efficiently in longitudinal storage in coal and ore stockyards for such fields as power, metallurgy, coal, building material and chemical industries. The portal reclaimer will not have any blending effect if the stacking method is coneshell. Bucket wheel reclaimer consists of a system of belt conveyors and extendable boom on which a heel is fitted. Reclaimers are named according to this type, such as bridge reclaimer. The bucket wheel is designed as a flange mounted single wall wheel with a very high number of cutting elements buckets. The bridge type bucket wheel reclaimer blends and homogenizes material that has been piled up to the chevron system stackers of a blending yard. Bucket wheel drive stacker reclaimer fluidtronik played an instrumental role in convincing the client to opt for a direct fluid drive system.
Bucket wheel excavators in garzweiler surface mine, germany. We offer an extensive selection of stacker and reclaimer systems to meet precisely your needs. Flsmidth has commissioned some of the largest stackers and reclaimers in the cement industry, matching kiln throughputs of up to 12,000,000 tpd. Pdf design, fabrication and testing of linear motion bucket. Pdf at dry bulk terminals, combined machines for stacking and reclaiming stackerreclaimers are. Our bucket wheel reclaimers, which are the result of decades of experience and technical competence, combine robustness with outstanding speed and high. It can realize both stacking and reclaiming operation. Investigation of stockpilevoxel profile and material reclaiming. Note the 90ton cat front loader at lower left for size comparison. Reclaiming of coal, iron ore and grain are necessaryessential in industries like power plants and mining. Bucket wheel reclaimers thyssenkrupp industries india. Bruks stacker reclaimer designs include both linear and circular models.
Bucketwheel stacker reclaimers metso stacker reclaimers offer the most technologicallyadvanced list of standard features in the industry. Bucket wheel reclaimers are used to pick up material that has been positioned by a stacker for transport to a processing plant. Industrial solutions bucket wheel and drum reclaimers. Pdf methodology to calculate the effective reclaiming.
These machines are made up of a bucket wheel, a counterweight boom, and a rocker. When youre dealing with the risk of shock loads and need a robust system that will keep on working even in the toughest environments, rexroth has the drive and control solutions for you. Methodology to calculate the effective reclaiming capacity of railmounted boomtype bucket wheel reclaimer and stacker reclaimer article pdf available. The reclaimer structure can be of a number of types, including portal and bridge. Control optimisation of automatic reclaimers at bhp iron. For continuous stacking an reclaiming of crushed bulk materials, economics solutions can only be achieved by the use of combined bucket wheel stacker reclaimer. Nov 11, 2014 the present article provides description of a catastrophic failure of a stackercum reclaimer in one iron ore mining area in india. A bucket wheel reclaimer can typically move manual handling of dozers for. Popular stacker systems built by us include radial stackers, circular stackerreclaimer systems, fixed, twin boom and linear travelling stacker systems. The stockpiles which they reclaim are typically 150m long, 17m to 19m high and 55m wide. Vamh special roller bearings in bucket wheel reclaimers examples of application engineering wl 21 512 ea.
Pdf bucket wheel reclaimer modeling as a robotic arm. Bucket wheel definition is a wheel having buckets attached to its rim or to a rope or chain passing over it as for raising water. Elecon is a company with international standards and worldclass capabilities, and today stands as asias largest gear manufacturer and an integrated solution provider for entire value chain in material handling systems. Instead of using manual selection of voxels carried out in the. Ldc tm3 th th th lmin mm ms mmin mmin mm 17,5 imt usa coal 1. The primary function of bwes is to act as a continuous digging machine in largescale openpit mining operations, removing thousands. Coal terminal stacker reclaimer bucket wheel machines and ship loaders duration. The majority of our combined bucket wheel boom machines are semiautomated. Jul 30, this practical, handson training book offers paramedics and advanced. Takraf combined stacker reclaimers with bucketwheel boom are primarily employed where medium or large or very large material flows are to be stacked and then later reclaimed by. Bucket wheel reclaimers, traveling on a rail track alongside the piles of material, can reclaim stockpile sections selectively. Bucketwheel excavators bwes are continuous mining machines for overburden semihard material such as clay, sand, gravel, marl, etc. Bucket wheel reclaimers use bucket wheels for removing material from the pile they are reclaiming. Stacker reclaimers are used where large volumes of material must be readily available andor where yard length is limited.
Feb 28, 2015 coal terminal stackerreclaimer bucket wheel machines and ship loaders duration. Takraf bwes can be employed across a widevariety of commodities and our machines cover a widerange of capacities, all the way up to 20,000 m. Need of stackers and reclaimers since bulk materials arrival time at a plant is much shorter as compared. Richmond engineering works specializes in designengineering, fabrication and installation along with inspections and upgrades for the work horses of the storage yard. Modernisation of a bucket wheel excavator abb, openpit mining, cottbusgermany 2 the task an srs 6300. A bucket wheel excavator bwe is a heavy equipment machine used in surface mining. Construction, working and maintenance of stackers and reclaimers.
Stacker reclaimers, which combine tasks to reduce the number of required machines, also use bucket wheels to carry out their tasks. They can stock material in stockpiles and reclaim them with a bucket wheel at the boom tip. The bucket wheel bearing will be connected to the centralizedautomatic lubrication system. Whether delivering product to the processing plant or transferring product to the rail or seaport for transportation, these machines are the. Construction, working and maintenance of stackers and. Each stockpile is reclaimed using two different boom slew positions. Combined bucket wheel stacker reclaimer koch mvt combined stacker reclaimer perform stockpiling using all established stacking and reclaimming. Updating your drive coordination can benefit stacker reclaimer operations in the following ways. They can stock material in stockpiles and reclaim them with a bucketwheel at the boom tip. Reclaimers and bucket wheel machines are used for continuous reclaiming operations and. Thyssenkrupp robins products bucketwheel reclaimers. By this process the mc will be put into operation with too many unknown hidden parameters which will lead to unexpected failures.
Reclaimer machine professional supplier juli engineering. However, in reality, there is a great gear backlash d in the component denoted in fig. Bearing arrangement the following fag bearings and housings are used. Our highperformance solutions ensure quick payback and minimal maintenance for your bucket wheel reclaimer. Takraf combined stacker reclaimers with bucket wheel boom are primarily employed where medium or large or very large material flows are to be stacked and then later reclaimed by. A bucket wheel reclaimer fell of the back of its lowloader as it went over a median strip while rounding a corner. The bucket wheel drive either consists of hydraulic system or motor,fluid coupling, brake and gear box, mounted on a drive frame supported by bracket. Bucket wheel stackerreclaimer courtesy of thyssenkrupp. Pdf operational control for stackerreclaimers researchgate. Pdf design, fabrication and testing of linear motion. Complete hydraulic solution for stacker reclaimer 2nd. The rail mounted bucket wheel reclaimers, for various types of material, have builtin safety elements and hydraulic systems to ensure smooth operations.
Takraf bridgetype bucket wheel reclaimers are primarily employed in applications where bulk material is to be homogenized with high required material flow rate. They can be designed as reclaimers or combined stacker reclaimers for handling. Stacker reclaimers bruks customizable stacker reclaimer product line includes automated storage solutions for a wide variety of bulk materials. A reclaimer is used for reclaiming applications, these applications can have low, medium, and high material flow rates. With the large number of cutting elements it is possible to attain a small cutting area and small lump sizes of the material. On the dynamic modelling of bucket wheel excavators. Balancing a stacker reclaimer by pressure adjusting in cylinders is a old and backdated method. The hollow output shaft of the gear box is clamped on the drive pulley shaft through a key less shrink disc element. Bucket wheel reclaimers bucket wheel drives fit directly onto the driven shaft of your bucket wheel reclaimer, our reliable drive motors provide builtin overload protection that eliminates electric motor tripouts. Technical specifications for automation systems level1 8. It is mainly used in coal and ore storage yard in power, metallurgy, coal, building material and chemical industries, suitable for the rectangular stockyard, with good material blend effect. Rockwell automation mining solution stacker reclaimers.
Common bucket wheels are designed with a bucket wheel body on which the. The circular stockpile installed in a cement works has a special loosening rake for wet clay. Material handling, bucket wheel technology is used extensively in bulk materials handling. This ultrasonic level system confidently navigates beam and bucket wheel over the varying. An electrical rehabilit ation became necessary in 1997, due to the long years of operation. Manual handling or usage of dozers for reclaiming operation requires lot of time, man power, and money and also involves risks of accidents. The overload protection, in combination with the low motor weight, reduces stresses on both the boom and the slew gear. For the purpose of deciding whcthcr a particular requirement of this standard is complied.
Basic reclaiming movements a slewing bucket wheel reclaimer. Bucket wheel bridge reclaimer radial rotation cable support. This is carried out in four quadrants directions on both sides of the track. The wheel has a number of buckets around it which dig into the pile of the material and loads it onto the conveyor system for feeding to the plant. Campbell on browse our editors picks for the best books of the month in fiction, nonfiction, mysteries. Number of track wheels driven wheels track wheel dia. Our bucket wheel reclaimers cover the following flow rates and sizes. Any facility where efficient stockpile management of raw materials is essential. Bucket wheel reclaimer s autoreclaiming process meeting diverse customer needs with kawasakis superior technology conveyance systems underpinned by outstanding developmental capabilities kawasaki has been developing a vast array of conveyance equipment in addition to stackers, reclaimers, and stacker reclaimers that offer features of both. Technical data sheet to be filled by the vendor general. Normal peak for material 1200 tonnes hour caracteristics. The number of blocks are selected in accordance with the height of the stockpile and the diameter of the bucket wheel. Pdf this paper presents the ground work prepared for turning a bucket wheel reclaimer bwr into a robotic arm for operation automation. Combined stacker reclaimers can operate as stackers or as reclaimers.
Track gauge trailer design overall length number of track wheels elevator conveyor bucket wheel stacker reclaimer, trencher design. Stacker reclaimers are designed as either railmounted or mobile on crawler tracks and are trenching or slewing type machines. Bucket wheel reclaimer manufacturer juli engineering. Coal terminal stackerreclaimer bucket wheel machines and. Bucket wheel stacker reclaimer, bucket wheel stacker reclaimer. Briefly, the reclaimer lost its excavating bucket wheel when the wheel driveshaft of diameter 320 mm fractured, because of a fatigue crack originating at a small cavity 40 mm below the shaft surface figure 9. This paper focuses on the methodology to calculate the effective reclaiming capacity of railmounted bucket wheel reclaimers, and stacker reclaimers, for largescale raw bulk material handling. Bucket wheel reclaimer boom ive had lots of emails this week about this incident. For example, they can be used to premix different ores and additives, or to blend. Stacker reclaimer bucket wheel are used for reclaiming. Bucket wheel stackers reclaimers and bridge type bucket wheel reclaimers are the machines that feed the mining system. Problem of luffing system of stacker reclaimer proceedings of 12th irf international conference, 29th june2014, pune, india, isbn.
Theory and experimental results 339 motor m representing motors m1 and m2 in fig. Bucket wheel stacker reclaimer industrial solutions for the mining and materials handling industry advanced technology and reliability in europe s largest terminal for coal and iron ore emo, located at the entrance to rotterdam s seaport, is the largest import and export terminal. Each weighs 1750 t and has a 60m boom with a bucket wheel diameter of 10. Bucketwheel stacker reclaimer brochure metso corporation pdf. Introduction, bucket wheel excavators bwe are continuous cutting machines for soft to semi hard materials like clay, sand, gravel, marl and their blendings as well as lignite and hard coal. Reclaimer in cement plant reclaimer operation youtube. Bucketwheel stackersreclaimers are combined machines which are intended to form openair coal stockyards close to the excavation sites, powerheat stations or harbors. The present article provides description of a catastrophic failure of a stackercum reclaimer in one iron ore mining area in india. Bucket wheel definition of bucket wheel by merriamwebster. A reclaimer uses a conveyor system to move any material reclaimed from the boom to its specific pile. Bucket wheel reclaimer bwr is one of the main equipment which has been widely used for stackingreclaiming bulk materials i. Bucket wheel stackers reclaimers these machines incorporate further control systems and sensor logic and are controlled and monitored from a central control station. Manual steel shot blastcleaning for element sizes of up. Pdf evaluation of the technical level coefficient of.
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