Oxide and mixed ores are treated by heap-leaching,
solvent-extraction and electro-winning (SX-EW).
Sulphide ore is crushed, ground and treated by
flotation. Run-of-mine sulphide ore enters the primary
gyratory crusher prior to transport to two parallel
grinding circuits, each consisting of a SAG mill and a
ball mill.
Secondary closed circuit grinding includes cyclone classifiers, from which the overflow feeds the flotation circuit. Flotation concentrate is thickened to 50% solids for slurry transport the concentrated and filtered for use worldwide.
Run-of-mine oxide ore is reduced to -10mm by three-stage crushing. The fine ore is agglomerated with sulphuric acid and water before being conveyed to the leach pads. Copper is recovered from the pregnant leach solution in the solvent-extraction plant, where the copper is stripped using organic solutions; the stripped liquor is then returned to the leach pads for re-use.
Townley has long been involved internationally in the copper mining process circuits. With products like slurry pumps, flotation hardware, flexhose and fittings, as well as, a variety of valves and hydrocyclones.
http://www.elmhurst.edu/.../332flotation.html http://www.elmhurst.edu/.../330copper.html http://www.mine-engineer.com/mining/copperm.htm http://www.mining-technology.com/... http://www.kona.or.jp/search/20_208.pdf
NOTE: Click each product thumbnail to view a PDF spec sheet for that product.
UBD
Matrix Pump - With more than 150 in service, these unique UBD
slurry pumps are in use from the pit to booster to tailings circuits.
Designed to solve wear problems associated with conventional impeller/volute
designs, these pumps have a patented recessed volute with matching impeller.
Coupled with a contoured suction port, these patented features reduce
recirculation and provide hydraulically clean solution-flow through the
impeller to the discharge. Available in alloy or urethane lined to match
your application.
Pump
Parts - Townley has an extensive inventory of parts and patterns
for most common slurry pumps in service. We can provide improved wear
with proper material selection. Cast alloys, replaceable urethane liners
or permanent urethane lined shells, impellers and suction plates.
Series
1000 Suction & Discharge hose - Reduce vibration and provide
easy transition for older plants with fit problems. Available in straight,
reducer with outlets or taps. Eliminate OEM multiple pipe assemblies with
one P/N. Most any lengths, wear tubes material and I.D.
Super
Flex Hose - This versatile hose has found new use in power plants,
especially in tailing lines as a strain relief for rigid pipe and to ease
runs over uneven terrain. Also can be found in suction and discharge use
where severe flexure is required. Recently used to replace a cyclone high-wear
"limestone reject line" improving wear cycles 2-3x rigid pipe.
Expansion
Joints - Suction or discharge, straight, reducing or of-set.
We custom build to suit your application
MSP
Submersible Slurry Pump - Cost effective replacement for vertical
cantilever style sump pumps. Available in 2”- 10” with 5-150
HP. Standard high-chrome wetted parts. Easily moved with lifting bail
and Townley flex discharge hose. Perfect for coal tunnel, sumps and waste
water run-off. Optional multiple sensor protection box to ensure pump
life.
80TP
Knife Gate Valve - Townley’s most versatile bidirectional
valve features a unique bonded-in Towniprene urethane lined body and seat.
Coupled with a precision stainless steel gate & stem, this valve is
perfect for slurry diversion and isolation with assurance of easy actuation
when you need it. The unique flush bottom of the seal ensures no clogging
or trapping of debris to prevent positive sealing. Townley offers a complete
rebuild service back to factory specifications.. Available in 2”
to 96” I.D.
80SCEHA
- This self contained electric powered hydaulic valve is perfect
for remote or isolated areas of your plant where factory air and hydraulic
lines are not practical. AC or DC these units can be remotely actuated
with a “DeviceNet™” interface. Especially useful in
settling ponds or containment areas.
Series
150 Heavy Duty Slurry - This heavy duty, high pressure fabricated
valve can be customized for your application with seats constructed of
wear and chemical resistant alloys or Towniprene urethane. Features an
easy open gate when under high pressure while handling slurries or coal
ash. Perfect for Bottom ash use where custom drilling or custom dimensioning
is required along with higher pressure service.
Hydrocyclones,
classifying or de-watering - Townley High-performance cyclones
are designed and manufactured with a Towniprene urethane cone body and
bolted apex. Constructed with a urethane lined tangential feed chamber,
fluid pressure is converted into rotational momentum, providing centrifugal
classification or dewatering of solids from slurry. Featuring durable
one piece urethane cone body to retain shape and reduce wear ridges. Custom
fit to your application, 4” thru 48”cone body wit
Custom
Overflows - apex splash guards, distribution headers and launderers
are available to meet your specifications
Urethane Gaskets and Wedges -
Maintenance friendly describes these simple products found in
many power plants. Especially useful for older plants
to offset misaligned fittings or couplings. Wedges
can be used for slight turns in pipe without the
expense of fabricated pipe. Designed with a handle
to ensure precise alignment between flanges, this
feature doubles as a “finger saver”. Townley can
easily design custom sizes and formulations for your
application.
Towniprene
Flotation/Agitation Equipment - Lined Great resistance to reagents
and abrasion found in encountered in the flotation process. Gloss finish
inhibits accumulation of concentrates improving efficiency. Parts in stock
for all common brands.
Miscellaneous
Lining - New or stripped and rebuilt, we can handle pulley lagging,
wheels, tubs, classifier shoes, logger teeth, agitators, propellers, chutes,
etc. we are prepared to line a broad variety of components with either
rubber or urethane based on your applications.
Lined
Pipe - Urethane or rubber, we can build new parts or strip and
rebuild you existing pipe. Good selection of materials to match your plant
specifications. Pipe, spools, Y’s, laterals, elbows or any combination.
If you don’t see it here, just call our customer service at a facility near you and ask!
