US 12,071,360 B2
Devices for controlling to remove food waste digestion foam
Mingguo Peng, Changzhou (CN); Jianfeng Ma, Changzhou (CN); Yang Qu, Changzhou (CN); Linqiang Mao, Changzhou (CN); Erdeng Du, Changzhou (CN); Fang Zhu, Changzhou (CN); Weibing Zhu, Changzhou (CN); Dongxiao Shi, Changzhou (CN); Qiuya Zhang, Changzhou (CN); Yanqiu Zhang, Changzhou (CN); and Lu Zheng, Changzhou (CN)
Assigned to CHANGZHOU UNIVERSITY, Changzhou (CN)
Filed by CHANGZHOU UNIVERSITY, Jiangsu (CN)
Filed on Aug. 24, 2023, as Appl. No. 18/455,605.
Application 18/455,605 is a continuation in part of application No. PCT/CN2022/111312, filed on Aug. 10, 2022.
Claims priority of application No. 202210933815.X (CN), filed on Aug. 4, 2022.
Prior Publication US 2024/0043299 A1, Feb. 8, 2024
Int. Cl. C02F 3/28 (2023.01); B01D 19/02 (2006.01); C02F 103/32 (2006.01)
CPC C02F 3/2866 (2013.01) [B01D 19/02 (2013.01); C02F 2103/32 (2013.01); C02F 2203/006 (2013.01); C02F 2209/03 (2013.01); C02F 2209/06 (2013.01); C02F 2303/12 (2013.01); C02F 2303/14 (2013.01); C02F 2305/06 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for controlling to remove food waste digestion foam, adopting a device to remove foam, wherein the device comprises a hermetically sealed digestion tank, a partition is disposed inside the digestion tank, the partition divides the digestion tank into two hermetically sealed boxes distributed left and right, each of the two boxes is opened with a liquid inlet connected to an interior of each of the two boxes, and a conveying mechanism is connected between the two boxes;
a gas pipe is disposed in each of the two boxes, one end of the gas pipe extends out of each of the two boxes and is connected to the conveying mechanism, the other end of the gas pipe is inserted into a bottom of each of the two boxes, the gas pipe is installed with a first check valve only allowing gas to flow from the bottom of each of the two boxes to the conveying mechanism, a branch pipe is disposed at a downstream position of the first check valve of the gas pipe, and the branch pipe is installed with a second check valve only allowing gas to enter the branch pipe;
a cover plate is disposed inside each of the two boxes, the cover plate divides each of the two boxes into two chambers distributed above and below, the cover plate is inserted with a distribution pipe extending upwards, the distribution pipe allows gas to circulate between the two chambers, and the branch pipe is located between the distribution pipe and a sidewall of each of the two boxes; and
the conveying mechanism is configured to convey a gas in the two boxes in a reciprocal manner to increase a pressure in one box for pressurization and defoaming and decrease a pressure in another box for depressurization and defoaming, the conveying mechanism stops working when the pressure in the box with a relatively great pressure increases to 1.5 atmospheres to 2.5 atmospheres, and after 5 hours to 10 hours, the conveying mechanism is turned on for reverse conveying.