Fluidized bed with uniform heat distribution and multiple port n

Details Fluidized bed with uniform heat distribution and multiple port n Fluidized bed with uniform heat distribution and multiple port n

1995-06-06

1996-10-29

Bueker, Richard

Coating apparatus

Gas or vapor deposition

Means to coat or impregnate particulate matter

118725, C23C 1600, C23C 1626

Patent

active

055693296

ABSTRACT:
A fluidized bed apparatus which produces a pyrolitic carbon coating with improved wear and porosity characteristics of the coating by producing a more uniform flat temperature profile throughout a reaction chamber in the area where coating is taking place. The apparatus has heating coils surrounding a lower end of the reaction chamber placed immediately adjacent one another at tight spacing. This contrasts to previous apparatus wherein heating coils were spaced between 2 cm and 5 cm apart. The apparatus also has a multi-jet nozzle to control a flow of gases through the reaction chamber. The jets in the nozzle comprise passages which are oriented such that the length of the passages lie on a series of cones having common axes.

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patent: 4788394 (1988-11-01), Vanneste
patent: 4874916 (1989-10-01), Burke
patent: 5216215 (1993-06-01), Walker

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