Dr. Purevsuren Damiran
Senior Expert Surface Mining
Tel.: +49 (0) 2306 709-2176
Fax: +49 (0) 2306 709-1128
Mobile: +49 (0)171 869 3617
Purevsuren.Damiran@de.bucyrus.com
Web: www.bucyrus.com
Mr. Karl Jeworutzki
Sales Manager for Underground
Tel.: +49 (0) 2306 709-1132
Fax: +49 (0) 2306 709-1515
Mobile: +49 (0)171 336 9319
Karl.Jeworutzki@de.bucyrus.com
Web: www.bucyrus.com
 ---- Bucyrus Electric Rope Shovel 495 HF with 100
t for single pass and 4 passes loading for 400 t tucks at the Albian
Sands Muskeg River Mine, north of Fort McMurray, Alberta, Canada. It is
the one of the HydraCrowd equipped shovels.
Electric Shovels: The electric rope shovels Bucyrus
manufactures are with more than 60 m3 (80 yd3) dipper and over 18 m (5.5
ft) cutting height, it primarily used in loading haul trucks up to 400 t
with overburden and ore during the mining process. Bucyrus continues to
improve the design and technology of mining shovels to provide
customers with maximum productivity and cost-effectiveness. Through
pioneering efforts with the latest technology like HydraCrowd and
LatchFreeDipperTM, Bucyrus produces a shovel with excellent digging
forces and rapid cycle times.
Bucyrus Electric Rope Shovel 495 HF with: 100 t for
single pass and 4 passes loading for 400 t tucks at the Albian Sands
Muskeg River Mine, north of Fort McMurray, Alberta, Canada. It is the
one of the HydraCrowd equipped shovels.
Drills: In 1952, Bucyrus introduced the first
commercially accepted electric, rotary blasthole drill, changing mining
productivity forever. Bucyrus has continued to improve upon the
technology and design to offer reliable, productive and cost-effective
means of drilling in mining operations. Bucyrus’ blasthole drills
combine field proven technology with modular design techniques making
them productive, reliable and cost-effective drills. A few noteworthy
refinements include programmed drill control, rack and pinion pull-down
and hydrostatic propel drives.
The working range of Bucyrus drills:
Hole size 152-444mm, Bit loading 22,6-74,8 t,
standard hole depth for single pass 9,1-19,81 m.
Latest commissioned Bucyrus Drill 49 HR.
Product lines
Surface mining equipment
Walking Draglines
Bucyrus has produced some of the largest surface mining machines ever
manufactured. Walking draglines continue to be a primary excavating
tool used in many surface mining operations worldwide. Bucyrus’ massive
draglines are able to reach depths of 94.5 m (213 ft) and have been
designed with bucket capacities up to 168.2 m3 (220 yd3). With the
lowest material removal cost and an average operating life of nearly 40
years, draglines are the most productive and versatile machines in the
industry. Bucyrus offers a full range of dragline specifications, which
are tailored to a customer’s specific application.
Bucyrus designed and manufactured the first AC powered walking
dragline in coal mining. It is the Dragline 8750 with 90 m3 (117,7 yd3)
bucket and 100 m operating radius. The production level is up to 5000
m3/h and operating costs is up to 20% less than DC powered draglines.
Reliability at work
Bucyrus offers also fully automated operational systems for its equipment.
Bucyrus engineers, located anywhere in the world, can access a
machine to provide service support through an internet or modem
connection
Underground mining equipment: With the acquisition
of DBT in 2007 Bucyrus now also supplies complete system solutions for
underground coal mining. The core business here lies in equipment and
systems for the longwall and room & pillar mining operations.
Longwall Systems and Components: The world-leading
technology for longwall mining range from high-capacity roof-support
systems for seams from 0.6 to 6 m, electro-hydraulic shield control
systems, fully automated plow systems, high-horsepower shearers, chain
conveyors with customized carrying capacity to crushers and loaders.
Room & Pillar Equipment: The extensive room
& pillar product line includes continuous miners, continuous haulage
systems as well as a broad range of battery- and diesel-driven utility
vehicles.
Belt conveyor Systems: Bucyrus also provides
custom-designed, heavy-duty, engineered belt conveyor solutions and
conveyor products to handle the most demanding bulk material handling
requirements in both underground and surface applications.
Customer Service
The longstanding reputation of Bucyrus is the result of high quality
equipment and the exceptional service we have provided for well over a
century. Bucyrus provides complete service and support for machines
throughout the world. Bucyrus provides complete packages including
service, support and OEM parts of superior quality ensuring the best
long-term return on investment.
For our surface mining equipment, our mechanical division provides
field repair service and installation of OEM parts while our electrical
division provides electrical service and support. The underground mining
equipment is also backed up by outstanding Bucyrus Five-Star Service
with on-site-service, repairs, overhauls and spare parts.
Our large inventory and technical resources enable us to support any
Bucyrus brand machine worldwide. Our customers can expect knowledgeable
technical support every hour of each day.
The global demand for mineral is well defined. The addition of the
underground equipment to its product range will allow Bucyrus to provide
a broader scope of supply to global mining companies. Bucyrus is
renowned in the mining industry for its innovative products designed to
satisfy the world’s toughest requirements – on the surface and
underground. Research and development efforts continue to add new
products and improve and expand established product lines.
www.bucyrus.com
Production in Block Caving mines goes through the roof with continuous ore handling
The mining method block caving is used globally for underground
extraction of mainly copper and molybdenum. To allow for application of
panel or block caving, the deposit has to be massive and highly friable
to allow gravity and internal rock stresses to be used to fracture the
rock to manageable pieces as the main requisite.
Development of block caving is expensive and requires a long lead time,
but once established, the amount of drilling and blasting required for
production is minimal, resulting in a low cost per tonne due to the high
volume. As block caving causes surface subsidence, the technique can
only be used where this is not an issue.
Two levels are developed underneath the block in order to prepare for
extraction, the haulage and the undercut levels. Draw bells –
funnel-shaped excavations – are created to connect the two levels. The
undercut is then drilled and blasted. This causes the ore body to
fracture and cave via the drawbell to the drawpoint. As ore is removed
from the drawpoint, caving continues, supplying a continuous stream of
ore. Oversized boulders are blasted or broken up with hydraulic hammers
at the drawpoint.
Conventionally, removal of ore from the drawpoints is performed by
means of LHD (load/haul/dump) vehicles. Even with utilization of the
most productive LHD, ore handling is the bottleneck in production today
as the traffic density in roadways can only be increased to a certain
point without causing congestion. Further increases in the carrying
capacity of LHD vehicles will only result in gradual increases of
handling capacity.
In order to overcome these restrictions in LHD operations, a
continuous haulage system was developed specifically for the
requirements of block and panel caving.
Initial underground testing has already approved that production can be multiplied by application of the continuous haulage.
The haulage system comprises of components centrally controlled by an
advanced process automation system. First, mobile dozer feeders in each
of the drawpoints transfers ore from the drawbells to the production
conveyor. The conveyor collects caved ore, passes it through an impact
roll crusher and onto a belt conveyor, which conveys the broken ore to
the nearest hopper.
Dozer Feeder
The Dozer Feeder is a completely new development. Similar to a
reciprocating feeder, the Bucyrus Dozer Feeder (DF) has the key property
– and unique selling proposition – of mobility. It can be quickly
removed from the draw point at any time for maintenance or to undertake
clearance work in the draw point. This may be necessary, for example, to
clear a blocked drawpoint or to break up an oversized boulder by
blasting. The Dozer Feeder is then driven back into the ore-filled
drawpoint by hydraulic cylinders. An integrated dozer plate is extended
hydraulically and pushes the ore lying on top towards the conveyor. |