Coal accounts for about 60% or more of all electric power generated
in the United States. Having reasonable costs, a straight-forward
generating process and many centuries of known reserves, it appears
that coal will continue to grow as the primary power production method. The challenge for coal
generated power stations has been emission control of sulfur dioxide (SO2).
FGD or flue gas desulfurization is a very effective method for removing these emissions and was initiated in Japan about 35 years ago. By introducing a sorbent, usually limestone or lime in the exhaust stream, with either wet or dry dispersion devices, they are capable of reducing emissions of SO2 by up to 95%.
With more than half the coal fired plants using the wet scrubbed method and planned conversions of others scheduled for the near future, it seemed a logical fit for Townley to introduce our premier products into this important clean air initiative.
For more than 15 years, Townley products have provided a critical service in more than eighty FGD scrubbed power plants across North America. Townley has solved many maintenance and performance problems in the FGD circuit and elsewhere in limestone prep and coal handling.
Townley Offers:
Townley is a recognized leader in part reduction programs, process efficiency improvements with the overall goal of reducing maintenance time and improving your cost per kilowatt hour.
The following are excellent links about coal fired power
and FGD scrubbers:
www.eas.asu.edu/~holbert/eee463/coal.html
www.worldbank.org/html/fpd/em/power/EA/mitigatn/
www.eerc.und.nodak.edu/carrc/html/Terminology.html
http://en.wikipedia.org/wiki/Flue_gas_desulfurisation
NOTE: Click each product thumbnail to view a PDF spec sheet for that product.
WRK
FGD Slurry Pump - A compelling alternative to the complicated
wet-end assemblies found in the installed base of Warman, ASH, Hazleton,
AC and other OEM pumps. Consisting of only 4 main parts with convenient
lifting eyes, these pump are designed to bolt to your drive, fit exactly
to your existing piping and meet all performance specifications. Finally
a pump the maintenance crew actually likes! Sizes from 350, 450, 550 and
many others on request.
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.
MSP
Submersibe 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, bottom ash,
scrubber 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. Especially useful with
high chloride recycled slurries. Available in 2" to 96" I.D.
80BA
Knife Gate Valve - For severe duty, this rugged, bidirectional
valve features high-chrome inserts at the face to resist impact and abrasion
found in bottom ash and coal byproduct applications. The inserts are locked
and sealed inplace with the same urethane seat as the 80TP. This is a
great valve for those tougher circuits. Townley offers a complete rebuild
service back to factory specifications.
80
SS Knife Gate Valve - A stainless steel valve designed for those
applications where chemical resistance is required. This precision ground
seat provides directional sealing.
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
120 Butterfly Valve - Manufactured new or rebuilt from your used
valve, this large diameter valve is the right choice for solution diversion
or isolation for water or slurries. Especially popular in power plants
for cooling tower and condensate water handling, these bi-directional
fabricated valves feature a one-piece shaft, urethane lined body and a
rubber lined disc. Our production process is designed to fit in a typical
planned outage timeline. Sizes available from 20" to 144" I.D.
with complete actuation options.
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.
Ball
Mill Chute - With the in-house capability to cast, fabricate
or line chutes, Townley recently replaced the OEM chutes with a high wear
cast alloy, improving wear life and reducing maintenance time. Townley
technical reps can review your wear problems and create unique solutions.
FGD
Hydrocyclone Limestone Classifier - Custom designed for limestone
preparation, this cyclone features a one-piece urethane cone body and
threaded apex along with a wear resistant alloy feed-chamber. Drastically
reducing the number of parts used in typical OEM cyclones, thereby easing
maintenance with less part numbers. Townley also lines launderer tubs
and distribution manifolds, to improve life cycles. And can provide urethane
or rubber overflows.
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.
FGD
Scrubber Nozzles - Designed to replace fragile ceramic nozzles,
these cost effective urethane alternatives can be manhandled without damaging.
Many sizes and designs available to replace OEM styles.
Site Audit - Our local technical teams have over 15 years
experience in powerplant proceses. Invite them in to review
the condition of your process equipment or discuss
annoying problems or material failures. We can make solid,
creative recommendations to improve your wear and
provide cost effective alternatives to your issues.
Click here to make an inquiry.
