Intermittent mixer with low pressure drop

Details Intermittent mixer with low pressure drop Intermittent mixer with low pressure drop

2007-10-30

2007-10-30

Smith, Duane (Department: 1724)

Gas separation

With inflow gas control or distribution

C055S419000, C055S361000, C095S273000, C095S288000, C137S111000, C137S114000, C137S896000, C137S897000, C138S037000, C138S038000, C138S039000, C138S042000, C138S043000, C366S144000, C366S150100, C366S332000, C366S336000, C366S337000, C366S338000, C366SDIG003, C048S180100

Reexamination Certificate

active

11196075

ABSTRACT:
A thermal mixer reduces the temperature of flue gas supplied to a fabric filter. Two spray dry absorbers are operable to cool flue gas. A housing of the mixer has first and second inlet passages for gas from the absorbers, an outlet passage for gas to the fabric filter, and a mixing passage. A set of damper vanes extends in the mixing passage and has a mixing position for mixing the flue gases from the inlet passages to supply mixed gas to the outlet passage at relatively high pressure drop but lower temperature if one of the absorbers in not operating. They have a non-mixing position for passage of gases without mixing and at low pressure drop when both absorbers are operating. The invention can also be used to improve mixing of combined gas streams initially having different chemical compositions or amounts of particle loading.

REFERENCES:
patent: 2142665 (1939-01-01), Thomas et al.
patent: 3545470 (1970-12-01), Paton
patent: 4469446 (1984-09-01), Goodboy
patent: 4487510 (1984-12-01), Buurman et al.
patent: 4498786 (1985-02-01), Ruscheweyh
patent: 6299657 (2001-10-01), Schubert et al.
patent: 6623155 (2003-09-01), Baron
patent: 6946011 (2005-09-01), Snyder
patent: 2002/0079374 (2002-06-01), DeSellem

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