Given the variety of fossil fuels (e.g., bituminous coal, lignite, anthracite culm, bituminous gob, and petroleum coke) and alternative fuels, as well as the varieties of lime, limestone, and ash handled at coal-fired plants, numerous flow problems occur.
To meet the standards of the Clean Air Act, many power plants have been switching to low-sulphur sub-bituminous coal. Unfortunately, this cohesive, poorly-flowing coal often produces severe flow problems, such as stagnation during handling in silos and bunkers. One extreme consequence of this is spontaneous combustion. Other problems include arching and ratholing during discharge from stockpiles, storage silos, or hoppers (often leading to structural problems). Other plants are installing flue gas desulphurization (FGD) systems, otherwise known as scrubbers. These require new, massive storage facilities for lime or limestone along with fly ash, and, in some cases, synthetic gypsum.
Jenike & Johanson helps power plants keep bulk solids flowing reliably while complying with regulatory requirements. We also give power companies a significant edge in a competitive, deregulated industry by modifying their bulk solids handling methods to increase process efficiency and substantially reduce operating costs.
KEY ENGINEERING SERVICES
- Stockpile stacker/reclaimer operation/specification
- Gravity stockpile reclaim systems
- Barge or train unloading hopper and feeder systems
- Fuel silos, bunkers and feeders
- Boiler feed chutes
- Arrangement of transfer chutes
- Silos and feeders for limestone/lime, fly ash and synthetic gypsum
In order to formulate an approach to solving or preventing a problem, we need to learn as much as possible about your application to ensure that handling problems do not occur with the new equipment.
| Partial Client List |
|
- American Electric Power
- Atomic Energy of Canada
- B. C. Hydro, Canada
- Detroit Edison
- Consumers Power
- Crows Nest Resources, Canada
- N.S.W. Electricity Commission, Australia
- Edmonton Power, Canada
- Eldorado Nuclear, Canada
- Electricity Supply Commission, So. Africa
- General Electric
|
- National Power Corp., Philippines
- New Brunswick Power, Canada
- Ohio Edison
- Ontario Hydro, Canada
- Pennsylvania Electric
- Pyropower
- Riley Stoker
- Saskatchewan Power, Canada
- Southwest Public Service
- Standard Oil of California
|
- Standard Oil, Ohio
- Suncor, Canada
- Syncrude Canada
- Tennessee Valley Authority
- Triton Coal
- Union Electric
- Unocal
- U.S. Department of Energy
- VTT Fuel and Process Technology, Finland
- Western Energy
- Westinghouse Electric
- Wisconsin Public Service
|
|
| Some of the Materials We Have Handled |
|
- Anthracite
- Bottom Ash
- Coal
- Ash
- Bituminous
- Brown
- Dust
- Export
- For Foundry Coke
- High Sulfur
- High Volatile
|
- Low Grade Seam
- Low Sulfur
- Metallurgical
- Pulverized
- Shale
- Slag
- Stoker
- Sub-bituminous
- Waste
- w/Freeze Conditioning Agents
- w/Shot Coke
- w/Shredded Tires
- w/Wood
|
- Coke
- Calcinate
- Dust
- Fines
- Flour
- Petroleum
- Shot
- Sponge
- Tailing
- Sand Blend
- Culm
- Fly Ash
- Gob
- Lignite
- Oil Shale
- Synthetic Gypsum
- Tar Sand
- Tire Chips
|
|
TYPICAL
PROJECT APPROACH
- Plant visit for troubleshooting and understanding plant and system requirements
- Flow properties testing of bulk solids
- Root cause analysis of handling/feeding/conveying problems
- Functional design of solids handling equipment
- Detailed engineering design of equipment
- Supply of custom designed equipment
For over forty years, our team of experienced engineers has been providing
proven technology solutions that are cost-effective and safe. Contact Jenike & Johanson
to help you solve and prevent bulk solids handling problems.
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