公开(公告)号：US10322386B2

公开(公告)日：2019-06-18

申请号：US15548080

申请日：2016-05-18

Applicant: Jiangnan University

Inventor： Zhiyong Zheng ,  Dongdong Sun ,  Xiaobei Zhan ,  Minjie Gao

IPC: B01F3/04 ,  B01F7/00 ,  B01F7/26 ,  B01F7/16 ,  B01F7/20 ,  B01F15/00

Abstract: The invention discloses an agitation device comprising an impeller, an agitating shaft and a power device. The impeller includes a disc, a hub and concave blades. Each blade consists of a concave surface which extends radially and has an annular sector-like shape, the projections of the upper and lower portions of the blade in the horizontal plane are two annular sectors, and the radian of the annular sector obtained by the projection of the upper portion is larger than that of the lower portion, and the annular sector-like shape and the rotation direction of blades are the same, so that each portion of the blades directly faces an incoming flow, the utilization efficiency of blades is increased and the impeller has low energy consumption and high gas-liquid dispersion efficiency. The device is efficient and energy-saving, has low power consumption, high mixing performance and high gas holdup and mass transfer performance.

公开(公告)号：US20180117544A1

公开(公告)日：2018-05-03

申请号：US15548080

申请日：2016-05-18

Applicant: Jiangnan University

Inventor： Zhiyong Zheng ,  Dongdong Sun ,  Xiaobei Zhan ,  Minjie Gao

IPC: B01F7/00 ,  B01F3/04 ,  B01F7/16 ,  B01F7/20 ,  B01F7/26 ,  B01F15/00

CPC classification number: B01F7/0025 ,  B01F3/04531 ,  B01F7/00466 ,  B01F7/1675 ,  B01F7/20 ,  B01F7/26 ,  B01F15/00896 ,  B01F2003/04673 ,  B01F2215/0036

Abstract: The invention discloses an agitation device comprising an impeller, an agitating shaft and a power device. The impeller includes a disc, a hub and concave blades. Each blade consists of a concave surface which extends radially and has an annular sector-like shape, the projections of the upper and lower portions of the blade in the horizontal plane are two annular sectors, and the radian of the annular sector obtained by the projection of the upper portion is larger than that of the lower portion, and the annular sector-like shape and the rotation direction of blades are the same, so that each portion of the blades directly faces an incoming flow, the utilization efficiency of blades is increased and the impeller has low energy consumption and high gas-liquid dispersion efficiency. The device is efficient and energy-saving, has low power consumption, high mixing performance and high gas holdup and mass transfer performance.