Method for extending the life of a curved section in a pipe for

Details Method for extending the life of a curved section in a pipe for Method for extending the life of a curved section in a pipe for

1994-06-27

1995-02-07

Brown, David

Conveyors: fluid current

Conduit

With wear protection means

138 37, B65G 5118, B65G 5352

Patent

active

H00014168

ABSTRACT:
A method for extending the life of a curved section in a pipe wherein finely divided particulate solids are transported in fluidized flow by positioning pre-rotation vanes upstream of the curved section, the improvement comprising the use of pre-rotation vanes fabricated of steel and hardened by boron vapor diffusion hardening.

REFERENCES:
Cheng Fluid Systems, Inc., Letter to Jon Berge, Aug. 6, 1992.
VaporKote, Inc., May 27, 1987, "Boron Gas Diffusion Coatings".
Cheng Fluid Systems, Inc., letter to Meir Snir, Oct. 24, 1991.
Turbine Metal Technology, Inc., "A Better Diffusion Coating for Centrifugal Pumps" date unknown but available to inventor as reference).
Chemical Engineering, Sep. 1992, "New In-Pipe Flow Conditioner Cuts Fluid Problems".
Cheng Fluid Systems, Inc. Technical Bulletin, Sep. 1990 "Cheng Rotation Vanes (CRV)".
Machine Design, Aug. 23, 1990, "Rotational Vane Smooths Out Fluid Flow".

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