公开(公告)号：US11458434B2

公开(公告)日：2022-10-04

申请号：US16617898

申请日：2018-04-24

Applicant: CHIYODA CORPORATION

Inventor： Kazuya Kumagai ,  Naobumi Kurosaki

IPC: B01D53/18 ,  B01D53/78 ,  B01D53/50

Abstract: There are provided a downcomer pipe that can achieve suppression of accumulation of deposits in use and simplification of operation when being installed into a partition wall, an installation member and a desulfurization apparatus. The downcomer pipe comprises a pipe-shaped member and an installation member for installing the pipe-shaped member into the partition wall. The installation member includes a pipe-shaped part whose inner wall is to be brought into contact with the outer wall of the pipe-shaped member and a protruding part arranged on the outer wall of the pipe-shaped part, the pipe-shaped part and the protruding part constituting an integrated member.

公开(公告)号：US20200155998A1

公开(公告)日：2020-05-21

申请号：US16617898

申请日：2018-04-24

Applicant: CHIYODA CORPORATION

Inventor： Kazuya Kumagai ,  Naobumi Kurosaki

IPC: B01D53/18 ,  B01D53/78 ,  B01D53/50

Abstract: There are provided a downcomer pipe that can achieve suppression of accumulation of deposits in use and simplification of operation when being installed into a partition wall, an installation member and a desulfurization apparatus. The downcomer pipe comprises a pipe-shaped member and an installation member for installing the pipe-shaped member into the partition wall. The installation member includes a pipe-shaped part whose inner wall is to be brought into contact with the outer wall of the pipe-shaped member and a protruding part arranged on the outer wall of the pipe-shaped part, the pipe-shaped part and the protruding part constituting an integrated member.

公开(公告)号：US11198092B2

公开(公告)日：2021-12-14

申请号：US16962583

申请日：2019-01-10

Applicant: CHIYODA CORPORATION

Inventor： Kazuya Kumagai ,  Hironobu Marukawa

IPC: B01D53/78 ,  B01D53/50 ,  B01D53/14 ,  B01F3/04

Abstract: This invention provides a continuous liquid phase type wet exhaust gas treatment method for removing sulfur oxides from exhaust gas and collecting it as gypsum, which method is simple and humidifying liquid is uniformly sprayed into exhaust gas with it. The method is characterized in that humidifying liquid is injected downwardly in a region where exhaust gas flows vertically downwardly.

公开(公告)号：US20200164310A1

公开(公告)日：2020-05-28

申请号：US15780753

申请日：2016-11-29

Applicant: CHIYODA CORPORATION

Inventor： Kazuya Kumagai

IPC: B01D53/78 ,  B01D53/50 ,  B01D47/06 ,  B01D53/18

Abstract: A flue gas desulfurization system that suppresses accumulation of solids on the bottom surface of the desulfurized flue gas inflow chamber of the system is provided. the system includes an absorber solution chamber so that the flue gas can be blown into the solution, a desulfurized flue gas inflow chamber for receiving the inflow of the desulfurized flue gas, a gas flow pipe penetrating between the absorber solution chamber and the desulfurized flue gas inflow chamber to allow the desulfurized flue gas to pass through the pipe, a cleansing solution feed pipe for feeding cleansing solution into the desulfurized flue gas inflow chamber, and at least one cleansing solution discharge pipe, discharging the fed cleansing solution from the desulfurized flue gas inflow chamber. The desulfurized flue gas inflow chamber has a bottom surface including a protrusion zone having a plurality of protrusions. Each protrusion has an inclined top surface.

公开(公告)号：US10780386B2

公开(公告)日：2020-09-22

申请号：US15778111

申请日：2016-11-29

Applicant: CHIYODA CORPORATION

Inventor： Kazuya Kumagai ,  Hirokazu Yasuda ,  Naobumi Kurosaki

IPC: B01F3/04 ,  B01D47/00 ,  B01D47/02 ,  B01D45/10 ,  B01D53/18 ,  B01D53/75 ,  B01D47/06 ,  F23J15/04 ,  B01D53/50 ,  B01D53/78

Abstract: A liquid film dust arrester is installed to face a gas flow containing dust and flowing out from a gas discharge pipe. The arrester includes a gas flow blocking unit arranged vis-à-vis the gas flow, a liquid dispersion unit having a dispersion section arranged at a position near the center of the gas flow blocking unit and upstream relative to the gas flow blocking unit as viewed in the flowing direction of the gas flow so as to face the gas flow blocking unit, a liquid ejection unit having an ejection port disposed vis-à-vis the dispersion section and configured to eject liquid from the ejection port, and a liquid film forming unit. The dispersion section comprises a smooth surface that causes the ejected liquid to flow and disperse on the smooth surface, and the liquid film is formed to face the gas flow flowing through the flow path.

公开(公告)号：US10661222B1

公开(公告)日：2020-05-26

申请号：US15780753

申请日：2016-11-29

Applicant: CHIYODA CORPORATION

Inventor： Kazuya Kumagai

IPC: B01D53/14 ,  B01D53/78 ,  B01D53/50 ,  B01D53/18 ,  B01D47/06

Abstract: A flue gas desulfurization system that suppresses accumulation of solids on the bottom surface of the desulfurized flue gas inflow chamber of the system is provided, the system includes an absorber solution chamber so that the flue gas can be blown into the solution, a desulfurized flue gas inflow chamber for receiving the inflow of the desulfurized flue gas, a gas flow pipe penetrating between the absorber solution chamber and the desulfurized flue gas inflow chamber to allow the desulfurized flue gas to pass through the pipe, a cleansing solution feed pipe for feeding cleansing solution into the desulfurized flue gas inflow chamber, and at least one cleansing solution discharge pipe, discharging the fed cleansing solution from the desulfurized flue gas inflow chamber. The desulfurized flue gas inflow chamber has a bottom surface including a protrusion zone having a plurality of protrusions. Each protrusion has an inclined top surface.