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Miltech offers clients design services for both fuel and limestone
processing systems. These design services include plant site selection,
structural design, feeder systems, screening, crushing, conveyance and
storage. In the area of fuel processing, Miltech's system designs services
also include specific gravity processing and separation.
Miltech's fuel and limestone handling system designs include delivery
system, storage, handling fuel yard layout, stockpiling, stockpile
reclaiming, etc. These system designs have been successfully used at
operating plants in Pennsylvania, West Virginia and Utah that handle a
wide range of fuels including run of mine coal, strip mine waste, coarse
coal refuse, fine coal refuse and petroleum coke.
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In 1990 Miltech worked closely with Pennsylvania Department of
Environmental Protection (PADEP) in the successful development of the
first Sub Chapter F permit for bituminous waste fuel recovery and boiler
ash reclamation that was issued in Pennsylvania.
Since that first permit in 1990, Miltech has developed permits for over
15 waste coal recovery and/or boiler ash reclamation sites in both the
bituminous and anthracite areas of Pennsylvania as well as for bituminous
fuel in West Virginia.
After waste coal sites are operating Miltech routinely assists clients
with regulatory compliance.
For more information see
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Miltech offers permit compliance services including all testing,
engineering, submissions, etc. needed to meet the requirements of a
mining, reclamation and/or a beneficial use permit. These services
include:
- Density testing and reporting
- Bonding reporting
- Water testing, statistical evaluation and reporting
- Annual volumetrics, mapping and reporting
- Coal completion reporting
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Miltech Engineers are experienced in the design and installation of SNCR
(selective non-catalytic reduction) systems for the reduction of NOx
(nitrogen oxides) in flue gas emissions. At one CFB waste coal burning
power plant, Miltech designed an aqua ammonia SNCR system to reduce NOx
emissions from 0.35 lb/mm BTU (pounds per million BTU) to 0.13 lb/mm BTU.
Designs included:
- Determining aqua ammonia feed rate required to achieve the desired
NOx reduction
- Selecting the pumps and piping required to transmit at the proper
pressure and flow rate, aqua ammonia from an on-site storage tank to
the injection sprays in the cyclones located upstream of the stack
- Sizing and providing specifications for the on-site aqua ammonia
storage tank
- Sizing and designing concrete containments for the aqua ammonia
storage tank, and an aqua ammonia truck unloading station
- Designing a pump skid for fabrication to support three aqua ammonia
pumps (two pumps plus one spare) for a two-train system, with valves
and controls to allow for the interchangeable use of the pumps
- Designing four flow meter panels for fabrication. The designs
included splitting the two aqua ammonia streams into 12 streams
leading to lances and spray nozzles, and for air injection into the
aqua ammonia streams.
- Selecting the proper spray nozzles for injecting aqua ammonia and
air into the cyclones.
In addition to designing and selecting the equipment for the aqua
ammonia injection system, Miltech also assisted plant engineers and
operators with selecting the location for the aqua ammonia storage tank,
truck unloading station, pump skid and controls, and the flow meter
panels. Once the aqua ammonia truck unloading and storage tank site was
selected, Miltech prepared specifications for the demolition and removal
of unused facilities at the selected location. Miltech then surveyed the
site, prepared site grading plans, and prepared detailed designs for the
installation of the concrete foundations and containments. Pipeline
routing plans from the ammonia storage tank, to the pump skid, to the flow
meter panels in the plant, and to the 12 ammonia injection lances were
also prepared. A complete list of materials required for the project was
provided to the client.
For the particular project, Miltech provided on-site supervision and
inspection during site grading, and during installation of the concrete
foundations and containments. Miltech has the capability and expertise
necessary to follow through on all projects from the design phase, to the
construction and installation phase, and through the startup and initial
operation phases, as required by the client.
For additional related information see:
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Miltech's fuel stockpiling inventory services offer our clients the
ability to reconcile inventories. The services include determining
stockpile volume by aerial and/or ground survey methods, density
determination by drilling and nuclear backscatter methods as well as
stockpile sampling and analyses.
Miltech's volumetrics and density testing are done in accordance with
ASTM procedures in order to ensure the maximum achievable accuracy.
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