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Troughed belt conveyors with horizontal curves were brought to industrial use by BEUMER. Because of their curved routing and minimum curve radii, these systems offer a low-cost alternative to systems, made of straight-line units with transfer points. By transporting material simultaneously in both directions utilizing the top and bottom belt strand, it permits the customer to operate the system in an even more economical way.
With this technology BEUMER has set new milestones.
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Its incorporation into PRODECO, a.s. production program enables to deliver to its customers comprehensive technological units for overburden dumping, i.e. excavator - belt conveyer - overburden spreader.
At present orders concerning the supply of belt transportation conveyers with a width of 1 600 and 1 800 mm have become reality. The production range includes belt conveyors with a belt width from 1 200 to 2 250 mm.
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Belt Conveyor Systems continuously transport bulk materials, excavated and crushed rock material in a clean and efficient manner over long distances, through curves and up and down via considerable inclinations. The design parameters strongly determined the climatic conditions and material properties.
Tenova TAKRAF Belt Conveyors can be stationary, shift able, enclosed, running in tunnels over long distances, mounted on sleepers, on rails and onto the tunnel roof. The belt width ranges from 1 m to 3 m, the maximum belt speed today reaches 6,1 m/s in copper mines (even 10 m/s on conveyor bridges).
Besides countless belt conveyors in lignite mines worldwide, in 2000 Tenova TAKRAF built a conveyor system with the world longest 16.8 km single conveyor , thereof 16 km inside of an inclined tunnel. Milestones in the development of conveyor systems are installed downhill overland conveyor of El Abra and the in pit and ex pit conveyors of the Escondida mine in Chile.
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Transport devices are intended for continuous transport of overburden, coal or extracted rock in open-pit mine conditions.
The basic transport devices manufactured by UNEX Inc. are conveyors with rubber belts stiffened with textile or steel-cord meshwork. Belt width ranges from 1 200 to 2 250 mm and their max. transport capacity is up to 10 000 m3/h. Depending on the mining technology conveyors can be design in two versions: movable or immovable.
Driving and return stations can move on rails (in axis or fanlike fashion) using rails or caterpillar undercarriages (rigid or load sensitive).
For extreme conditions (contact pressure of lower than 0,07 Mpa) the driving and return station can be design by means of hydraulic walking undercarriages.
Adjusting and adapting every individual conveyor in accordance with customer requirements and technological conditions is a matter of course.
All parameters of transport devices are in-tune with a series of UNEX bucket wheel excavators. Together with additional equipment for loading, directing and deflecting material flow they form complete technological complexes. The conveyors are able to work in fully or semi-automatic mode. Maintenance costs are minimal.
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Belt conveyors of the LEGMET are dedicated for underground mining of ores and should be installed in haulage routes incorporating high-capacity conveyors. The LEGMET conveyors can be also used in other industrial sectors whenever haulage equipment with adequate parameters is desired.
Design of the LEGMET conveyors makes it possible to use the equipment for heavy-duty and very specific applications. The conveyors are widely operated in copper ore mines of the KGHM Polska Miedź S.A. (KGHM Polish Copper plc.)
The LEGMET conveyors use belts of 1000 - 1200 mm width. They can be applied to material haulage with rates up to 1000 - 2000 t/h in underground workings with incline angle up to +15° and decline angle to -5°.
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GM-20A Drill, a light weight big-hole engineering drill, is im0proved and designed based on GM-20 drill. The new type drill unites the tower and machine body. This type of drill integrates the drill's advantages of the type's turn plates, the power heads and the main shaft drills. The drill has such advantages as high drilling efficiency and precision, powerful torque, wider ranges of speed and smaller coefficient of oversize of hole. It can drill in the ways of forcing feed or reducing bit load drilling by hydraulic system. Oil cylinders of the drill can raise or pull down the tower safely and quickly, move and fit the hole position conveniently. After moving the machine, the bit of two meter diameter can be directly lifted or run in. height of the tower is ten and five meters, which can directly pull down the steel cages. The assistant hoist's capacity is strong. The drill is equipped with step device as to fitting the hole position conveniently. The control handlebars are collected so easy to operating. The drill can be used in the drilling technologies of normal or reverse circulation in the quaternary period gravel or hand rock ground. The drill can be mainly used for big-hole grouting pole holes drilling of high building, port and bridge.
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Downhole drilling rig Introduction
The integrated hydraulic downhole drilling rig is widely used in metallurgical, mining, building materials, railway, hydropower construction, national defense construction and earth works, and the blasting hole drilling of open construction. It takes hydraulic drive for track traveling, rotary drill tool forward, drill tower top lifting compensation and drilling rig leveling. It takes compressed air from screw-type air compressors to impact drilling and flush the hole, with air pressure range of 1.05-1.4 M Pa, and dry-type distribution laminar precipitator. The drilling tool takes Ingersoll-Rand high-pressure downhole impactor, with the drilling aperture of 90 ~ 180 mm, and the depth of 30 m vertical or inclined hole. It is the most advanced integrated hydraulic downhole drilling rig in China, with the feature of highly-efficient high pressure downhole drilling system, which facilitate to drill the blasted hole with high-precision and high efficiency. Global purchase, optimal design with the computer, power matching and the development and application of load applicable system contribute to the realization of the overall power load matching from power-pump -load in the power system, which effectively reduces the overall energy consumption and ensures the best performance and the overall high reliability.
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Terex® SKF Rotary Blasthole Drills
The SKF crawler-mounted blasthole drills are designed to drill from 6" to 10 5/8" (152-270 mm) diameter holes with rated pulldown and hoist capacity up to 50,000 lbs. (22,680 kg) and 47,100 lbs. (21,364 kg) respectively, in rotary or down-the-hole applications. 60,000 lbs. (27,216 kg) pulldown optional.
SPECIFICATIONS SKF ROTARY BLASTHOLE DRILL
Hole diameter 6" - 10 5/8" (152-270 mm)
Total hole depth Single-pass 33.2' (10.1 m); Multi-pass 173' (52.7 m)
Rated pulldown capacity Up to 60,000 lbs (27,216 kg)
Power unit Caterpillar, Cummins
Compressor Up to 1,700 cfm @ 100 psi
Compressor Option Up to 1,500 cfm @ 350 psi
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Atlas Copco can offer the most comprehensive line of rotary blasthole drills in the industry. With a multitude of configurations to choose from you can find the perfect solution for your needs. Our blasthole products can meet your demands from 4" up to 16" hole diameter, and many models can be configured either for rotary or DTH drilling.
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Tenova TAKRAF has been building conveyor bridges since 1924.The mobile conveyor bridges in the German Lignite mines transport the material from the excavators directly crossing the open pit onto the dump site. Special operational conditions there allow capacities up to 29.000 m³/h from three Bucket Chain Excavators, a span length (distance between the supports) of 270 m and a dumping height of 74 m. The 13400 t Conveyor Bridge travels on rails. One support stands on the excavation site, the other one on the dumping side. The extraction of the lignite takes place between the supports.
Another application of Tenova TAKRAF conveyor bridges are Dumping the Heap Leach Systems. These conveyor bridges are also fully mobile and transfer the material from reclaimers, overland conveyors or connecting conveyors to the downstream conveyors, Mobile Transfer Conveyors or Stackers (Spreaders) as seen in Gaby/Chile or Toquepala/Peru.
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TEREX SHM SURFACE MINING SYSTEM OVERVIEW
Experience higher coal recovery with lower surface mining operating costs.
Terex SHM is a self contained, highly productive, cost efficient coal mining system. Designed with safety in mind, the system is operated and maintained exclusively on the surface, and at no time does any crew-member go underground, thereby providing a very safe work environment.
Terex SHM is also the first practical surface mining system that can mine parallel entries to predetermined depths. Like an auger mining systems the Terex SHM works before a highwall. However, unlike auger mining systems, the Terex SHM mines parallel entries, rectangular in section and up to 1000 feet or 305 meters deep.
This superior surface mining system yields the following benefits:
High Annual Capacity
Lower Per Ton Reclamation Costs
Higher Coal Recovery
Lower Total Costs
Minimal Out of Seam Ash Dilution
Terex SHM is generally operated from a bench that is created by the removal of overburden material and coal by way of contour surface mining around the perimeter of a coal seam. Other highwall applications include previously augered areas and trench mining.
In a contour surface mining application, a minimum bench width of forty-two feet is required, with fifty-five feet or more being ideal. The configuration of the Terex SHM is such that it is capable of surface mining coal seams ranging from thirty inches to sixteen feet in thickness and to depths of up to one thousand feet. The ability to mine this range of coal seam heights is accomplished by fitting interchangeable cuttterhead modules to the Terex SHM for low, medium, or high seam mining applications.
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Conveying Systems
Opencast mine
Chile
15x belt conveyor shiftable [CV27] GF1200x952
belt width 1219 mm (48'')
centre distance 952 m
drive power 710 kW
belt speed 5.6 m/s
leached copper ore 4000 t/h
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FAM volume car on crawler-type vehicles for day-builds to
Connection and elevator compensation between production devices or mobile crushing equipment and the Strossenbandanlage as well as tilting devices
The FAM program contains:
- Volume cars with together tiltable arms for
Bypass lengths to 75 m and mechanical handling capacities to 6,300 m ³ /h as well as
- Volume cars with tiltable moving in opposite directions arms for
Bypass lengths to 115 m and mechanical handling capacities to 6,000 m ³ /h.
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FLS RAHCO's Portable and Fixed Conveyors are robust and designed to last the life of the project. FLS RAHCO staff has designed and supplied Fixed Conveyors with vertical and horizontal curves, Shiftable Conveyors, Elevating and Declining Conveyors, and Portable Conveyors. We have supplied conveyors with capacities up to 10,000 tph.
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Mobile Transfer Conveyors (MTC) are "multi use" equipment in open pits. Determined by operational requirements, the design can be distinguished in fully mobile and semi mobile, self driven or not, one or two single conveyors, lifting, luffing and slewing of no, one or both conveyors.
Mobile Transfer Conveyors are installed between Bucket Wheel/Chain Excavators and the shiftable bench conveyor allowing multi block and multi bench operations to increase the block width and the block height. Thus, increasing the time between two shifting operations of the bench conveyor - results in a higher utilization of the mining system. Mobile Transfer Conveyors are used also as a combination of transfer conveyor to the bench conveyor and direct dumping onto the pit floor in coal seems with interburden layers. Grasshopper style Mobile Transfer Conveyors installed as a chain like one connected to the other are part of waste dumping and Heap Leach Systems.
Tenova TAKRAF offers Mobile Transfer Conveyors of all types in a wide range of capacity and lengths up to 95 m.
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dhms can supply mobile chain scraper conveyor systems, both with and without crushers, for transferring drivage debris to outbye rubber-belt conveyors.
The integral pusher system with its attached belt return end and table feeder for the conveyed material allows the conveyor installation to be advanced quickly and with minimum
outlay in roadway and tunnel drivages. A range of different designs can be supplied to suit specific operating requirements.
The facility to advance continuous conveyors and crushers quickly and reliably is essential for achieving high performance rates in highly mechanised roadway drivages. This system does away with the manual work of setting up and anchoring the belt conveyor return end. Conveyor advance and alignment, height adjustment on the crusher drum and conveyor chain tensioning are all achieved by hydraulic power.
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The proven Lokotrack mobile screens are designed for high screening performance combined with good mobility. Their excellent capacity and easy adaptability to different crushing and screening processes guarantee suitability for a wide range of quarrying and contracting applications.
The ST Series track-mounted mobile screens have heavy duty frames and proven components to give long service life in most demanding screening jobs. With the ST Series, you can choose flexibly and accurately the end product fractions to be screened.
The SW Series wheel-mounted mobile screens are designed to guarantee superior mobility on wheels and the ability to produce multiple end products with constant, high capacity.
The patented design of these units allows the user to travel over roadways without special permits and set up the screen in minutes once on site.
The CV Series wheel-mounted mobile screens offer construction and recycling contractors an easy to operate, highly reliable screening plants on wheels, able to handle a wide variety of materials. Processing the materials on site minimises purchase requirements and reduces expensive hauling costs.
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S-4
The Extec Double Screen
Based upon the world leading S-5, the S-4 is designed for operation where the massive throughput of its larger sibling is not required, but there still exists a requirement for precision screening only available from a Doublescreen.
The S-4 produces a huge screening area (at least equivalent to a traditional 16’X5’ (4.8m x 1.5m) screening system) but with to independently adjustable screen boxes for precision screening and massive production.
The S-4 encompasses such features as:
* Spreader plate - this is of unique Extec design to spread material across the full width of the screening facility while maintaining the velocity of the material particles
* Screening facility consists of two individual screening units, each having its own separate drive and each being independently angled
* The split screening facility enables the first screen box to be used as fines extractor even of the most difficult sticky material while the second box operates as a grader. The net result is that the Doublescreen produces grades of material of the most precise specification that we have ever seen from a mobile screening system
* Chassis - this is of the most modern computer assisted design capable of withstanding the stresses generated by high speed highway towing or track slewing over the roughest of terrain
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S-3
The newest member of the S-Series is a single screen-box screener that uses the same state of the art design technology to construct a screener for today’s requirements.
Perfect for the quarry or recycling operation where durability, production and mobility are paramount. The S-3 encompasses such features as:
* Spreader plate - this is of unique Extec design to spread material across the full width of the screening facility while maintaining the velocity of the material particles
* Chassis - this is of the most modern computer assisted design capable of withstanding the stresses generated by high speed highway towing or track slewing over the roughest of terrain
* Extec's unrivalled high frequency screen-box designed for easy change of screen meshes and unsurpassed screening efficiency
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THE BRAND NEW S-6 DOUBLE-SCREENING SENSATION.
Extec have launched the ultimate large production screen; the totally brand new - S-6.
The S-6 is based around the revolutionary Doublescreen concept that has taken the screening world by storm. Designed for the aggregate producer who requires large throughput, true mobility and clean gradings, the new S-6 encompasses such features as:
* Screening area consists of two individual 10x5 screen boxes, each possessing their own separate drive, and each being independently angled.
* The screen box arrangement presents a massive screening area, yet allows for an incredibly clean product through the independent set up of the two screen boxes.
* Longer, chevron belted side conveyors, in order to feed directly into a cone crusher, and/or possess vast stockpiling capacities.
* Longest tail conveyor in its class for even greater stock piling capacity.
* Faster running belts in order to facilitate high rates of production.
* Patented screen box lift mechanism to ease mesh change.
* New stronger chassis design for the most demanding of environments.
* Longer tracks in order to produce a stable screening platform.
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S-5
The Extec Double Screen
The ultimate mobile screening system designed for the truly serious contractor or quarry operator.
The S-5 represents the greatest innovation in mobile screening systems as the S-5 resolves the conflicting principles previously associated with providing larger screening areas on mobile plant.
Massive throughput, mobility and a class leading screening area results in the ultimate profit generator.
The S-5 encompasses such features as:
* Heavy duty tipping grid activated by remote control - this will accept feed from a wheeled loader or excavator. Large hopper with variable speed belt-feeder, which has heavy-duty roller bed and heavy-duty belting
* Two individual screening units, each having its own separate drive and each being independently angled. The throughput of this screening facility parallels that of a conventional screen box of 7.62m long
* Chassis - This is of the most modern computer assisted design capable of withstanding the stresses generated by high speed highway towing or track slewing over the roughest of terrain
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Robotrac
In a worldwide context this is the definitive track mounted scalping screen which employs such a highly efficient screening process it doubles as a grading screen in many applications.
Designed to scalp heaviest of material yet its ability to screen finer sizes is phenomenal for a scalper. Its sheer manoeuvrability on the ledge of a mountain quarry or on the demolition site of a Tokyo 'pencil' building has earned it the reputation of being one of the world's most versatile screens in terms of production and mobility. Key features include:
* Fitted with the world-renowned Extec double deck vibrating grid
* High speed scalping of sticky clay and fines from heavy rock and concrete
* Heavy-duty impact feeder absorbs shock loads and maintains smooth flow of material to the stockpiling conveyor
* Self-propelled and highly manoeuvrable on site
* Remote control operation by excavator operator
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E-7
Extec have announced a brand new tracked screen – the E7, a heavy-duty track mounted self-propelled open flow screening and stockpiling system. This revolutionary machine has been purpose built for the recycling and quarrying markets.
The E-7 has been developed over the last 18 months through Extec’s acclaimed R&D programme. Based on in-depth customer and market analysis the E-7 has been developed in order to deal with customers real requirements, which traditional screening solutions are unable to adequately cater for.
These include:
* Screening heavy over-burden at the quarry face
* Pre-screening/scalping prior to being fed into a crusher
* Recycling construction and landfill waste
* Separation of “sticky” aggregate
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THE BRAND NEW INSPIRATIONAL TRIPLE DECK S-7 SCREENER
Extec have launched the ultimate large production screen; the totally brand new - S-7.
The S-7 is based around the revolutionary Doublescreen concept that has taken the screening world by storm. Designed for the aggregate producer who requires large throughput, true mobility and clean gradings, the new S-7 Possesses such features as:
* Screening area consists of two individual 10x5 screen boxes incorporating 3 decks in each screen box, allowing for a more concentrated screen.
* Each Screen box possesses its own separate drive, and each being independently angled to aid the screening process.
* The screen box arrangement presents a massive screening area, yet allows for an incredibly clean product through the independent set up of the two screen boxes.
* An extra side conveyor that enables the S-7 it to produce up to a massive total of 5 product materials.
* Longer, chevron belted side conveyors, in order to feed directly into a cone crusher, and/or possess vast stockpiling capacities.
* Longest tail conveyor in its class for even greater stock piling capacity.
* Faster running belts in order to facilitate high rates of production.
* Patented screen box lift mechanism to ease mesh change.
* New stronger chassis design for the most demanding of environments.
* Longer tracks in order to produce a stable screening platform.
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Screening - 883
The Finlay 883 is designed to work as an aggregate screener after a primary crusher or on it's own as a frontline screening machine. Applications include quarry waste, construction and demolition debris, topsoil and aggregates. Processing at a rate of up to 500 tonnes per hour, the key to the 883 is its adaptability, whatever the application or industry.
Additional Information
* Low level feed height
* Hardox steel pan apron feeder
* Heavy-duty screenbox with huge clearance between decks allowing a larger middle grade product to be processed.
* Screen box features quick change mesh clamps
* Adjustable screen angle between 13° and 19°
* Options include:
o Radio remote control movement.
o Remote tipping grid
o Heavy duty tines or punch plate in top deck of screen.
o Cascade fingers in bottom deck.
o Magnet on oversize conveyor.
o Heavy Duty bofar bars in top deck
o Extended fines and middle grade conveyors
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Designed and developed to fulfill the demands of todays high Production
Producer, the Finlay 693 has surpassed all expectations. Available in three
options, the Supertrak model offers maximum on site mobility incorporating a twin undercarriage which can be controlled from a hand held radio control. The Superscreen model is a fully road-going version fitted with 5th wheel coupling and triple axle bogie. The third variation is a combination model fitted with both twin track undercarriage and triple axle bogie (which is detachable for onsite tracking). Impressive features include a 6.1m x 1.5m (20' x 5') 2-deck screen, three hydraulic folding conveyors, high capacity belt feed hopper and low level greasing. Washing equipment can be fitted to the screenbox if required.
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Screening - 312 Hydrascreen
The Finlay 312 Hydrascreen is a versatile screening unit that offers the operator the capacity and ability of producing high profit graded materials at a relatively low cost. Options include single or twin deck vibrating grid, chopper unit, catwalks and washing equipment. Typical applications include sand and gravel, limestone, topsoil, coal and slag.
Standard Features
* Tipping Grid
* Deutz Air Cooled Engine
* Twin Deck Screen 10' x 4' Top Deck, 8' x 4' Bottom Deck
* Single Braked Axle
* Easy Access Engine Compartment.
* Options include:
o Washing Equipment
o Remote Control Tipping Grid
o Twinset bogie unit
o Cutter Unit
o Vibrating Grid
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The Fintec 640 is a heavy duty scalping screen designed to work in tandem with our Fintec 1107 primary jaw crusher or as a stand alone 3 way split screener; The 640 is constructed for easy mobility and transportation; All conveyors are hydraulically foldable and walkways are fixed, for quick transport and set up time on site. The 640 uses a 74kw (99hp) engine to power the hydraulics throughout the machine.
The Fintec 640 screen can be feed by loading shovel, excavator or crusher. The hardox steel apron feeder provides a solution to aggressive and previously impossible applications. The apron feeder feeds directly on to the variable angle screenbox for maximum screening efficiency. There are a multitude of options available for the screening media on both the top and bottom decks of the screenbox, all of which are available with varying apertures. Screen meshes for the top deck of the 640 are all interchangeable with the Fintec 542. All conveyors are fitted with heavy duty impact bars in feed boots and impact zones to prolong belt life.
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The Fintec 570 has been designed by our experienced engineering team so that we could offer the customer a high production machine that would feel at home in any quarry application. The large screenbox allows the operator to feed the F570 with a wheel loader or to work in tandem woth any crushing plant to produce the final high specification grades of material.
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Other surface mining and quarrying equipment 
