The Stamet Posimetric{reg_sign} high-pressure solids feeder
- Stamet, Inc., Gardena, CA (United States)
- Dept. of Energy, Pittsburgh, PA (United States). Federal Energy Technology Center
In the late 1980`s, Stamet, Inc. started development of a device for pumping granular solids utilizing particle interlocking and internal friction. Developmental work resulted in a novel rotary mechanical feeder capable of feeding granular solids at very consistent rates at ambient or elevated pressures. In 1995, Stamet received an R and D 100 Award from Power Magazine for the design of the Posimetric feeder. The Posimetric feeder is presently operating in approximately 20 commercial installations feeding various materials under ambient conditions. The Posimetric feeder is also a very significant development for advanced combustion systems, including PFBC and IGCC applications, where it is expected to substantially be more reliable and less expensive to install and operate than the lock-hopper and paste systems currently used for feeding coal into high gas pressure environments. To date, a 600 lb/hr unit has been successfully tested for pumping granular coal mixtures into a gas pressure of 250 psig. Stamet currently is continuing development of the feeder for operating at gas discharge pressures of up to 450 psig and for pressure letdown applications. This paper will detail the unique design and operational characteristics of the Posimetric feeder and provide an update on Stamet`s continuing developmental activities on the unit.
- OSTI ID:
- 349198
- Report Number(s):
- CONF-980985-; ISBN 1-890977-15-2; TRN: IM9924%%198
- Resource Relation:
- Conference: 15. annual international Pittsburgh coal conference, Pittsburgh, PA (United States), 14-18 Sep 1998; Other Information: PBD: 1998; Related Information: Is Part Of Fifteenth annual international Pittsburgh coal conference: Proceedings; PB: [1500] p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Achieve Continuous Injection of Solid Fuels into Advanced Combustion System Pressures
Achieve Continuous Injection of Solid Fuels into Advanced Combustion System Pressures