公开(公告)号：WO1995015811A1

公开(公告)日：1995-06-15

申请号：PCT/US1994012680

申请日：1994-11-09

Applicant: KAMYR, INC.

Inventor： KAMYR, INC. ,  DELCOURT, Thomas, R. ,  GULLICHSEN, Johan ,  BAIN, Ronald, G. ,  STROMBERG, C., Bertil

IPC: B01F07/00

CPC classification number: B01F7/008 ,  B01F7/00191 ,  B01F7/00833 ,  B01F2005/0008

Abstract: A mixer, having a unique rotor, is particularly suitable for mixing paper pulp having a consistency of about 6-15 % (medium consistency) with a bleaching gas having an ozone content of at least one percent, and typically at least six percent. The rotor comprises a disc shaped base (11), a hub (14) at the center of the base for connecting it to a drive mechanism for driving the rotor at an angular velocity of 1000-6000 rpm, and one or more rings concentric with the base and extending outwardly from the base at least about three inches (and of the same for different heights). A number of blades (19-22) may extend radially through the center of the base along the contour of the rings, extending outwardly from the base, rings, and hub. Degassing holes (25) may be formed in the hub and connected up to a suitable degassing structure in the mixer. The rings may have a cross-sectional shape corresponding to that of a truncated right circular cone frustum, or may have a rectangular cross section. The rotor is mounted in a housing having a pulp inlet (32) and outlet (33), and the stator (31) has complimentary shaped cooperating surfaces with the rotor defining annular mixing volumes, the cooperating surfaces having a spacing of 0.5 inches or less (preferably 0.25 inches or less). The fluid to be mixed with the pulp is introduced into the inlet adjacent the rotor and into the mixing volumes, for example at the extremity of the rings from the base.

Abstract translation: 具有独特转子的混合器特别适用于混合具有约6-15％（中等稠度）稠度的纸浆与臭氧含量至少为1％，通常至少6％的漂白气体。 转子包括盘形基座（11），位于基座中心的毂（14），用于将其连接到用于以1000-6000rpm的角速度驱动转子的驱动机构，以及一个或多个与 基部并且从基部向外延伸至少约三英寸（并且对于不同的高度而言）。 许多叶片（19-22）可以沿着环的轮廓径向延伸穿过基部的中心，从基部，环和轮毂向外延伸。 脱气孔（25）可以形成在毂中并且在混合器中连接到合适的脱气结构。 环可以具有对应于截顶的右圆锥形截头锥体的横截面形状，或者可以具有矩形横截面。 转子安装在具有纸浆入口（32）和出口（33）的壳体中，并且定子（31）具有互补的成形配合表面，转子限定环形混合体积，配合表面具有0.5英寸或更小的间距 （优选0.25英寸或更小）。 要与纸浆混合的流体被引入到与转子相邻的入口中，并被引入到混合体积中，例如在环的离开底部的末端。