Bridgetype bucket wheel reclaimers can be designed with one or two bucket wheels and for uni or bidirectional operation. Bucket wheel reclaimers are the ideal means of handling and moving large amounts of bulk materials in the shortest possible time. The operating condition is monitored and analyzed using. Modeling, bucket wheel excavator, sensors, control system 1. Nov 11, 2014 the present article provides description of a catastrophic failure of a stackercum reclaimer in one iron ore mining area in india. 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. Expertise counts replacing the slew bearing or slewing components is one of the most difficult and hazardous jobs on a stacker reclaimer, but. 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. Reclaimer in cement plant reclaimer operation youtube. It obtains the 3d shape of the pile by the laser scanners mounted the. They can stock material in stockpiles and reclaim them with a bucket wheel at the boom tip. Development, design, application series on bulk materials handling rasper, dr. A reclaimer uses a conveyor system to move any material reclaimed from the boom to its specific pile.
Vamh special roller bearings in bucket wheel reclaimers examples of application engineering wl 21 512 ea. Bucket wheel reclaimer bwr is one of the main equipment which has been widely used for stackingreclaiming bulk materials i. Determination of resistances to coal reclaiming at bridgetype. It obtains the 3d shape of the pile by the laser scanners mounted the reclaimer, and extracts the landing position through computer vision techniques. Reclaimers are named according to this type, such as bridge reclaimer. Stacker reclaimer bucket wheel are used for reclaiming. Consistent performance combined with a good ratio between machine weight and capacity flexibility of choosing between mechanical or hydraulic drives vvvf drives for all motions of the equipment state of the art plc systems with user friendly. Our bucket wheel reclaimers cover the following flow rates and sizes. Pdf simulation of bucket body of bucket wheel stacker reclaimer. Fam, circular stacker reclaimer, cst80, germany, fertilizer works, circular. Development of concepts for automatic operation of materials handling systems. In addi tion, the bucket wheel trolley or trolleys are either equipped with a rake or an active scraper in case of poor flow properties. 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 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.
Large machinery such as bucket wheel reclaimers, ship loaders, and tunnel boring. Development of autonomous bucket wheel reclaimer with laser. 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. 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. Twin boom type scraper reclaimer scraper rotates along the slope of bulk material piled in a storage yard and discharges it onto a conveyor. Q prospect view to development of bucket wheel stackerreclaimer. Bucket wheel construction cellless or celltype bucket wheel construction is available dependent on the application and material. A reclaimer is used for reclaiming applications, these applications can have low, medium, and high material flow rates.
It obtains the 3d shape of the pile by the laser scanners mounted the reclaimer. The trencher design basically differs from approximately one bucket depth. Richmond engineering works specializes in designengineering, fabrication and installation along with inspections and upgrades for the work horses of the storage yard. A wide variety of bucket wheel reclaimers options are available to you. Industrial solutions bucket wheel and drum reclaimers. Combined stacker reclaimers can operate as stackers or as reclaimers. System dependability, efficient operation, and long service life are the. Development and realization of an efficient control system of such a plant requires a good model. Development of autonomous bucket wheel reclaimer with laser vision. We are also able to provide bridge bucket wheel reclaimers for one or two directional reclaiming and all our machines are automated. Need of stackers and reclaimers since bulk materials arrival time at a plant is much shorter as compared. As mentioned before, development of the adequate methodol. Bucket wheel reclaimers use bucket wheels for removing material from the pile they are reclaiming.
The design of bucket wheel mechanism of bucket wheel stackerreclaimer mainly refers to the bucket wheel excavators design specifications, which is rather conservative. This is carried out in two quadrants directions on both sides of the track. Bucket wheel stacker reclaimers travel on a rail track alongside the piles offering a possibility for selective stacking and recovery of materials in different. Analysis of reclaiming process of bucket wheel stackerreclaimer. For the purpose of deciding whcthcr a particular requirement of this standard is complied. Railmounted bucket wheel stackerreclaimer with a slewing boom 21. The bucket wheel trolley on the main girder travels on eight vertical rollers. Methodology to calculate the effective reclaiming capacity of railmounted boomtype bucket wheel reclaimer and stacker reclaimer article pdf available in bulk solids handling 243. Introduction the bucket wheel excavator bwe is a complex nonlinear electromechanical system, of great mass, dimensions and power. The stockpiles which they reclaim are typically 150m long, 17m to 19m high and 55m wide. Our stacker reclaimers result in lower operating costs, increased storage and improved product quality. The hollow output shaft of the gear box is clamped on the drive pulley shaft through a key less shrink disc element. Stacker, wheel bucket reclaimer and wheel bucket stacker and reclaimer. Combined bucket wheel stacker reclaimer koch mvt combined stacker reclaimer perform stockpiling using all established stacking and reclaimming.
Manual handling or usage of dozers for reclaiming operation requires lot of time, man power, and money and also involves risks of accidents. Circular stacker reclaimer ebook download pdfin website. Wealth of experience in development, design, fabrication, erection. Basic reclaiming movements a slewing bucket wheel reclaimer has three degrees of. We offer an extensive selection of stacker and reclaimer systems to meet precisely your needs. Trf stacker cum reclaimers are in operation at all major. Simulation of bucket body of bucket wheel stacker reclaimer. Stacker bucket wheel stacker reclaimer shiploader 2,000 th linear slewing and luffing stacker 1,540 th linear luffing stacker 3,0002,400 th stacker reclaimer bucket wheel reclaimer 3,300 th reclaimer 15,500 th shiploader bucket wheel continuously scoops up bulk material piled in a yard, such as coal or iron ore, and discharges it onto a. On the dynamic modelling of bucket wheel excavators. The bridge type bucket wheel reclaimer is a largescale loading and unloading equipment for bulk materials with high efficiency and continuous operation. Scraper reclaimers, traveling a horizontal runway, is designed to service parallel storage piles from booms mounted on either or both sides of. They can be designed as reclaimers or combined stacker reclaimers for handling. Scraper reclaimers use a series of scrapers on a chain to reclaim the material. Stacker and reclaimer for limestone storage in the cement plant duration.
Pdf methodology to calculate the effective reclaiming capacity. An autonomous system of the bucket wheel reclaimer is developed to improve capability of the reclaimer in dark or bad whether. Bucket wheel stacker reclaimers richmond engineering works. Pdf design, fabrication and testing of linear motion. For continuous stacking an reclaiming of crushed bulk materials, economics solutions can only be achieved by the use of combined bucket wheel stacker reclaimer. Bucketwheel stacker reclaimer brochure metso corporation pdf. All the operations of the reclaimer can be controlled automatically in the remote control room.
I need english version sandard specification, operation manual, maintenance handbook about stacker and reclaimer, because our products are saled to other countrys. Bucket wheel stackerreclaimer bucket wheel mechanism discrete element. Bucket wheel reclaimers are used to pick up material that has been positioned by a stacker for transport to a processing plant. Data sheet for bucket wheel reclaimer rail mounted. Stacker reclaimers, which combine tasks to reduce the number of required machines, also use bucket wheels to carry out their tasks. Bucket wheel reclaimer consists of a system of belt conveyors and extendable boom on which a heel is fitted. Methodology to calculate the effective reclaiming capacity of railmounted boomtype bucket wheel reclaimer and stacker reclaimer article pdf available in. In many of these cases we can also convert these types of machines over to our proprietary cannonball design for an extended service life of the slewing components. Armourgraph wear liners demonstrate typical tensile strength improvements of 30% and abrasion resistance improvements of 100% for all wear liner applications. Development of autonomous bucket wheel reclaimer with. Development and history surface of the stockpile in a longitudinal direction. Number of track wheels driven wheels track wheel dia. International journal of engineering development and research. Thyssenkrupp robins products bucketwheel stackerreclaimers.
Bucket wheel reclaimers are familiar at triangular piles, trapezoidal piles and at trapezoidal piles with side banks. These machines are made up of a bucket wheel, a counterweight boom, and a rocker. Takraf boomtype bucket wheel reclaimers are popular in applications where medium to high flow rates from dumps are being reclaimed. Reclaimers and bucket wheel machines are used for continuous reclaiming operations and. 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.
Bucketwheel stacker reclaimers parts and refurbishments to. Construction, working and maintenance of stackers and. Material handling, bucket wheel technology is used extensively in bulk materials handling. Reclaimer machine professional supplier juli engineering. Our highperformance solutions ensure quick payback and minimal maintenance for your bucket wheel reclaimer. Updating your drive coordination can benefit stacker reclaimer operations in the following ways.
Introduction the operation of the bucket wheel excavators. Preprint control of a bucketwheel for surface mining of. Control optimisation of automatic reclaimers at bhp iron. Pdf design, fabrication and testing of linear motion bucket. Locations, is an ideal solution for stacker reclaimers. Typical stacker reclaimer bucket wheel during inspection. A bucketwheel excavator bwe is a large heavy equipment machine used in surface mining the primary function of bwes is to act as a continuous digging machine in largescale openpit mining operations, removing thousands of tons of overburden a day. Pdf this paper focuses on the methodology to calculate the effective reclaiming. 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. Sep 12, 2018 fam, circular stackerreclaimer, cst80, germany, fertilizer works, circular. In general, the many applications of the bucket wheel stacker reclaimer. Sep 23, 2018 fam, circular stackerreclaimer, cst80, germany, fertilizer works, circular.
Bucket wheel stacker reclaimer design pdf bucketwheel stacker cellless or celltype bucket wheel construction is available depen metso stacker reclaimer control systems are designed with the. The number of blocks are selected in accordance with the height of the stockpile and the diameter of the bucket wheel. Stacker reclaimers bruks customizable stacker reclaimer product line includes automated storage solutions for a wide variety of bulk materials. Sep, 20 the 5 calibers to claim the most powerful handgun in the world title reupload duration. Takraf bridgetype bucket wheel reclaimers are primarily employed in applications where bulk material is to be homogenized with high required material flow rate. The circular stockpile installed in a cement works has a special loosening rake for wet clay.
Bruks stacker reclaimer designs include both linear and circular models. Trf has engineered and supplied stacker reclaimers for coal, iron ore, limestone, sinter and coke. Advanced technology and reliability in europe s largest. Pdf abstract in bucket wheel stacker reclaimer, the reclaiming process is. 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. Reclaiming of coal, iron ore and grain are necessaryessential in industries like power plants and mining.
Research, development and construction of machines for handling and. Pdf methodology to calculate the effective reclaiming. This type of reclaimer excels with respect to quantitative discharge and is capable of automatic control. Analysis of reclaiming process of bucket wheel stacker. The reclaimer structure can be of a number of types, including portal and bridge. Each weighs 1750 t and has a 60m boom with a bucket wheel diameter of 10. Track gauge trailer design overall length number of track wheels elevator conveyor bucket wheel stacker reclaimer, trencher design. Weihua provide 2 sets of bucket wheel stacker and reclaimer for the 2. Bridge type bucket wheel reclaimer is capable of automatic operation and is appropriate for blending.
Flsmidth has commissioned some of the largest stackers and reclaimers in the cement industry, matching kiln throughputs of up to 12,000,000 tpd. The design of bucket wheel mechanism of bucket wheel stacker reclaimer mainly refers to the bucket wheel excavators design specifications, which is rather conservative. Rockwell automation mining solution stacker reclaimers. Bucketwheel stacker reclaimers metso stacker reclaimers offer the most technologicallyadvanced list of standard features in the industry. Stacker cum reclaimers the stacker reclaimers are used extensively in stockyards and are ideal for ensuring endtoend logistics between incoming raw materials and their processing in the plant. Four horizontal rollers at the level of the lower bridge chord ensure lateral. Manual steel shot blastcleaning for element sizes of up to 25 x 8. Pdf bucket wheel reclaimer modeling as a robotic arm. These success ful applications will help explain the growth in acceptance. Bucketwheel stackerreclaimers travel on a rail track alongside the piles of material, offering the potential to selectively stack and reclaim materials in different stockpile sections.
Stacker cum reclaimers economical solution for stockyards where simultaneous stacking and reclaiming is not required. Bogie supporting the portal of stacker bridgefor radial blending machine. Bucket wheel reclaimer manufacturer juli engineering. Bucket wheel stacker reclaimer, bucket wheel stacker reclaimer. Remote online condition monitoring of the bucket wheel excavator sr0 a case study 29 the oneprod system is a concept of condition based monitoring where the multitechnique approach is emphasized. Ldc tm3 th th th lmin mm ms mmin mmin mm 17,5 imt usa coal 1. The other bucket wheel reclaimers, because boom can be short because of the operates with boom positioned at right be supplied as dualpurpose stacker. A bucket wheel reclaimer can typically move manual handling of dozers for. 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. Bridge type bucketwheel reclaimers thyssenkrupp robins. All the operations of the reclaimer can be controlled automatically in the remote. The bridge type bucket wheel reclaimer blends and homogenizes material that has been piled up to the chevron system stackers of a blending yard. Stacker reclaimers are designed as either railmounted or mobile on crawler tracks and are trenching or slewing type machines. Reclaiming by slewing inching inching forward area previously area to be reclaimed reclaimed next bucket wheel reclaimers autoreclaiming process meeting diverse customer needs with kawasakis superior technology conveyance systems underpinned by.
But having the eyes so close to the area to be measured is like giving a horse blinkersthe 3d terrain model overview becomes very limited and will not be suitable for giving the remote based operator a true and realtime. Each stockpile is reclaimed using two different boom slew positions. Modern mechanical designer manual volume ii, section 9. What sets bwes apart from other largescale mining equipment, such as bucket chain excavators, is their use of a large wheel. Voestalpine bucket wheel reclaimer varl 1800 source. With hundreds of references, thyssenkrupp has the storage equipment for all applications. The jib of stacker and reclaimer could slew, luff, prolong and shorten itself.
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