Fluid sprinkling – spraying – and diffusing – Processes – Including mixing or combining with air – gas or steam
Patent
1988-01-15
1989-06-06
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Processes
Including mixing or combining with air, gas or steam
239 13, 239 85, 21912147, 427423, B05B 720
Patent
active
048364479
ABSTRACT:
A flame-spray duct defined by the portion of a bore passing through a flame-spray body at the outlet end thereof having a duct L/D ratio of at least 5-to-1 is associated with elements within the flame-spray body which assure nearly uniform flow of reactant oxidant and fuel mixture at the point of introduction of the particulate material within the duct to eliminate the formation of eddies and recirculation regions thereby preventing uninterrupted even flow of the particulate material from the point of introduction into the duct to the exit from the duct resulting in even heating of the particulate material and where the material is capable of melting, the adherence of molten particulate material on the wall of the duct. The elements within the flame-spray body may take the form of a relatively small diameter oxidizer inlet bore leading to a diverging conical diffuser leading to and emerging with a larger diameter bore section defining the flame-spray duct. Alternatively, the metered flow of oxidant may be passed through a plenum chamber to smooth out the flow of oxidizer prior to its introduction into the flame-spray duct and contact with the particulate material. Uniform flow may further be assured by passing the metered flow of oxidant through a long pipe section of uniform diameter prior to introducing the flow of oxidant into the flame-spray duct.
REFERENCES:
patent: 2990653 (1961-07-01), Browning
patent: 4370538 (1983-01-01), Browning
patent: 4416421 (1983-11-01), Browning
patent: 4634611 (1987-01-01), Browning
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