Cleaning of dry catalyst beds

Details Cleaning of dry catalyst beds Cleaning of dry catalyst beds

B - Operations, Transporting

08

B

15/42, 252/1.D

B08B 5/04 (2006.01) B01D 46/30 (2006.01)

Patent

CA 1061768

ABSTRACT OF THE DISCLOSURE An improved process particularly adapted for cleaning dry particulate matter of a catalyst filter bed without requiring the removal screening and reinstating of such material forming the catalyst filter bed. Basically, the process embodies the steps of arranging a screen over the top surface of the filter bed, subjecting the surface of the screen and filter bed to a vacuum to thereby pull impurities, such as dust and the like, from the filter bed and through the screen, advancing a rake device through the filter bed in a first direction of movement for loosening the impurities and for providing greater access thereto, subjecting the screen and filter bed to a vacuum thereby pulling additional impurities from the filter bed and through the screen, and for providing greater access to the impurities, again advancing the rake device through the filter bed in a second direction which is generally transverse to the first direction of movement of the rake device for loosening the impurities and for producing greater access thereto, and again subjecting the screen filter bed to a vacuum the thereby pull additional impurities from the filter bed and through the screen.

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