초록 ▼

A fluid stream including separate layers of plural components is mixed by dividing the fluid stream into a plurality of substreams, reorienting and recombining the substreams in a chamber, and repeating the steps of dividing, reorienting and recombining until a desired degree of mixing of the compon

A fluid stream including separate layers of plural components is mixed by dividing the fluid stream into a plurality of substreams, reorienting and recombining the substreams in a chamber, and repeating the steps of dividing, reorienting and recombining until a desired degree of mixing of the components is obtained. The substreams of a given stage or group of substreams are controlled so that the substreams are longitudinally dephased with respect to each other such that the fluids of the substreams are longitudinally blended when recombined. The dephasing is achieved by providing that at least selected of the passageways for the substreams of a given stage of the mixer are dimensioned such that the total resistances to flow of the fluid of the substreams passing through the selected passageways, from the beginnings thereof to the ends thereof, are unequal. Such differing total flow resistances may be achieved by providing selected of the passageways with unequal cross-sectional areas, or alternatively with unequal lengths.

대표청구항 ▼

In a static mixer of the interfacial surface generator type for mixing plural viscous reactive components and including an inlet chamber, means for supplying into said inlet chamber a fluid stream including separate longitudinal layers of plural viscous reactive components, an outlet chamber from wh

In a static mixer of the interfacial surface generator type for mixing plural viscous reactive components and including an inlet chamber, means for supplying into said inlet chamber a fluid stream including separate longitudinal layers of plural viscous reactive components, an outlet chamber from which is discharged an outlet stream in the form of a viscous mixture of said plural components, at least one recombination chamber positioned between said inlet and outlet chamber, all of said chambers being serially connected by stages of plural separate passageways, such that said fluid stream is successively divided into plural separate substreams by each of said stages of plural passageways, and said plural substreams are reoriented and then recombined into a main stream in the said chamber following each said stage of plural passageways, whereby said plural components are successively mixed to form said mixture, and wherein said fluid stream supplied to said inlet chamber contains periodic solid patches of one of said components, with the layer of the other component being interrupted by said solid patches, the improvement comprising: means for blending said solid patches into said mixture and for thereby preventing said patches from appearing in said outlet stream, said blending means comprising at least selected of said separate passageways of at least one of said stages having unequal transverse cross-sectional areas, such that the total resistances to flow of the fluid of the substreams passing through said selected passageways, from the beginnings thereof to the ends thereof, are unequal.