Christopher C Nagel

US Patent:

20170028449, Feb 2, 2017

Filed:

Jul 29, 2016

Appl. No.:

15/223129

Inventors:

- St. Paul MN, US
Christopher Nagel - Saint Paul MN, US
Eric Schmidt - Woodbury MN, US
Anthony W. Erickson - Golden Valley MN, US

International Classification:

B08B 9/08
B08B 9/032
C11D 3/39
A01J 7/02
B01D 1/20
B08B 3/08
B08B 3/10

Abstract:

A method for cleaning a piece of equipment in place includes a plurality of cleaning cycles and optionally a rinse, where each cleaning cycle includes applying a first cleaning solution from a first supply tank through a first set of nozzles; and applying a second cleaning solution from a second supply tank through a second set of nozzles. The first cleaning solution may be applied for about 20 s to about 10 min, and the second cleaning solution for about 1 min to about 60 min. The cleaning cycle can be repeated from 5 to 150 times, and the first and second cleaning solutions can be recirculated during the process.