logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12247354 B1

PDFFull Text
Date of Patent:
Mar. 11, 2025

Filed:

Sep. 10, 2020

Method for suppressing sedimentation of suspended substance, method for suppressing pitch trouble, and method for detecting sedimentation of suspended substance

Applicant:

Kurita Water Industries Ltd., Tokyo, JP;

Inventor:

Hiroki Katsura, Yokohama, JP;

Assignee:

KURITA WATER INDUSTRIES LTD., Tokyo, JP;

Attorney:

JCIPRNET

Primary Examiner:

Anthony Calandra

Int. Cl.
CPC ...
D21C 9/00 (2006.01); C02F 1/00 (2023.01); C02F 1/24 (2023.01); C02F 1/40 (2023.01); C02F 1/50 (2023.01); D21D 5/28 (2006.01); D21F 1/66 (2006.01); D21F 1/68 (2006.01); D21F 1/70 (2006.01); D21H 21/04 (2006.01); D21H 23/08 (2006.01); C02F 103/28 (2006.01);
U.S. Cl.
CPC ...
D21C 9/008 (2013.01); C02F 1/008 (2013.01); C02F 1/24 (2013.01); C02F 1/40 (2013.01); C02F 1/50 (2013.01); D21D 5/28 (2013.01); D21F 1/66 (2013.01); D21F 1/68 (2013.01); D21F 1/70 (2013.01); D21H 21/04 (2013.01); D21H 23/08 (2013.01); C02F 2103/28 (2013.01); C02F 2209/02 (2013.01); C02F 2209/10 (2013.01); C02F 2209/11 (2013.01); C02F 2303/20 (2013.01);
Abstract

A method for suppressing sedimentation of suspended substances is a method for suppressing sedimentation of suspended substances in water at the bottom of a tank disposed in a water system in papermaking equipment, comprising a step of blowing an oxygen-containing gas into the water, for stirring and aeration; a step of detecting a change with time in existence states of the suspended substances in the tank by the stirring and the aeration; and a control step of feeding at least one of an oxygen-containing gas and a slime control agent to the tank based on the detection result to suppress the sedimentation of the suspended substances in the tank.

Find Patent Forward Citations

Loading…