Gas stream classifier and process for producing toner
    1.
    发明公开
    Gas stream classifier and process for producing toner 失效
    气流分类器和生产碳粉的方法

    公开(公告)号:EP0755727A2

    公开(公告)日:1997-01-29

    申请号:EP96111928.6

    申请日:1996-07-24

    IPC分类号: B07B7/086 G03G9/08

    摘要: A gas stream classifier (1) has a gas stream classifying means for classifying a feed powder supplied from a feed supply nozzle (16), into at least a coarse powder fraction, a median powder fraction and a fine powder fraction by an inertia force acting on particles and a centrifugal force acting on a curved gas stream due to Coanda effect in a classification zone (32), wherein the classification zone (32) is defined by at least a Coanda block (26) and a plurality of classifying edges (17,18), the feed supply nozzle (16) is attached at the top of the gas stream classifier (1), the Coanda block (26) is attached on one side of the feed supply nozzle (16), and the feed supply nozzle (16) has at its rear end a feed powder intake portion (42) for supplying the feed powder, and a high-pressure air intake portion (41).

    摘要翻译: 气流分级器(1)具有气流分级装置,用于通过惯性力作用将从供给喷嘴(16)供给的进料粉末分成至少一个粗粉末部分,中间粉末部分和细粉末部分 (32)中由于柯恩达效应作用于作用于弯曲气流的颗粒和离心力,其中所述分类区(32)由至少柯恩达块(26)和多个分级边缘(17)限定 ,18),供给喷嘴(16)安装在气流分级器(1)的顶部,柯恩达块(26)安装在供料喷嘴(16)的一侧,供料喷嘴 (16)在其后端具有用于供给供给粉末的供给粉末吸入部(42)和高压空气吸入部(41)。

    Fine powder production apparatus
    2.
    发明公开
    Fine powder production apparatus 失效
    微粉状体制造装置。

    公开(公告)号:EP0679442A2

    公开(公告)日:1995-11-02

    申请号:EP95109863.1

    申请日:1992-07-15

    IPC分类号: B02C19/06

    摘要: The invention provides a fine powder production apparatus comprising a pneumatic classifying means and a pneumatic impact pulverizing means, wherein said pneumatic impact pulverizer has an accelerating tube for accelerating powder to be pulverized with high pressure gas, and a pulverizing chamber which is equipped with an impact member against which powder collides to pulverize. One end of the acceleration tube is provided with a powder feed port and a high pressure gas ejection nozzle which are concentrically arranged. Further, a communicating means is provided for feeding discharged coarse powder from the pneumatic classifying means to the pneumatic impact pulverizing means. The pneumatic classifier means has a classifying chamber, a classifying plate having its center swelled, and a classifying louver so that powder fed with carrier gas is whirled in the classifying chamber and classified into fine powder and coarse powder by means of centrifugation.

    Pneumatic impact pulverizer and process for producing toner
    5.
    发明公开
    Pneumatic impact pulverizer and process for producing toner 失效
    PneumatischePrallmühleund Verfahren zur Herstellung von Toner

    公开(公告)号:EP0850690A1

    公开(公告)日:1998-07-01

    申请号:EP97122907.5

    申请日:1997-12-24

    IPC分类号: B02C19/06

    CPC分类号: B02C19/066

    摘要: A pneumatic impact pulverizer is disclosed which has a nozzle for feeding high-pressure gas, a tube (1) for transporting and accelerating a pulverizing material, a pulverization chamber (13), and an impact member (11) for pulverizing the material. The impact member (11) is opposed to an outlet of the accelerating tube (1) and has at least a first impact face (17) projecting toward the accelerating tube side and a second impact face (18) sloped toward the downstream side. The pulverization chamber has at least a first sidewall (15) positioned on the side more upstream than the outermost edge of the second impact face (18) and a second sidewall (16) positioned on the downstream side of the first sidewall. The pulverization chamber (13) is enlarged at its part on the side more upstream than the outermost edge of the second impact face (18) so that the cross-sectional area of the inside of the chamber (15) at that part is larger than that of the inside of the chamber (16) corresponding to the outermost edge of the second impact face (18). The tip of the first impact face (17) is positioned on the side more upstream than the downstream side edge of the first sidewall (15). The pulverization can be conducted in a very high efficiency with the pulverizer. Also, a process for producing a toner for developing electrostatic images using the pulverizer is disclosed.

    摘要翻译: 公开了一种气动冲击式粉碎机,其具有用于供给高压气体的喷嘴,用于输送和加速粉碎材料的管(1),粉碎室(13)和用于粉碎材料的冲击构件(11)。 冲击构件(11)与加速管(1)的出口相对,并且至少具有朝向加速管侧突出的第一冲击面(17)和向下游侧倾斜的第二冲击面(18)。 粉碎室具有至少第一侧壁(15),其位于比第二冲击面(18)的最外边缘更上游的一侧,以及位于第一侧壁的下游侧的第二侧壁(16)。 所述粉碎室(13)的所述第二冲击面(18)的最外边缘的上游一侧的部分被扩大,使得所述室(15)内部的所述部分的横截面积大于 对应于第二冲击面(18)的最外边缘的腔室(16)的内部。 第一冲击面(17)的前端位于比第一侧壁(15)的下游侧边缘更上游的一侧。 粉碎机可以以非常高的效率进行粉碎。 另外,公开了使用粉碎机制造静电图像显影用调色剂的方法。

    Gas stream classifier and process for producing toner
    6.
    发明公开
    Gas stream classifier and process for producing toner 失效
    的气流分级器和方法,用于生产调色剂

    公开(公告)号:EP0755727A3

    公开(公告)日:1997-11-19

    申请号:EP96111928.6

    申请日:1996-07-24

    IPC分类号: B07B7/086 G03G9/08

    摘要: A gas stream classifier (1) has a gas stream classifying means for classifying a feed powder supplied from a feed supply nozzle (16), into at least a coarse powder fraction, a median powder fraction and a fine powder fraction by an inertia force acting on particles and a centrifugal force acting on a curved gas stream due to Coanda effect in a classification zone (32), wherein the classification zone (32) is defined by at least a Coanda block (26) and a plurality of classifying edges (17,18), the feed supply nozzle (16) is attached at the top of the gas stream classifier (1), the Coanda block (26) is attached on one side of the feed supply nozzle (16), and the feed supply nozzle (16) has at its rear end a feed powder intake portion (42) for supplying the feed powder, and a high-pressure air intake portion (41).

    Surface treating apparatus and method for solid particles, and method for producing toner
    8.
    发明公开
    Surface treating apparatus and method for solid particles, and method for producing toner 失效
    装置和方法用于颗粒的表面处理和方法,用于生产调色剂

    公开(公告)号:EP0822002A3

    公开(公告)日:1999-02-24

    申请号:EP97113005.9

    申请日:1997-07-29

    IPC分类号: B01J2/00 B01J2/10

    CPC分类号: B01J2/10 B01J2/006 G03G9/0802

    摘要: An apparatus for treating the surfaces of solid particles has at least a first cylindrical treating chamber and a rotary shaft and a first rotor having two or more blades on its front face, contained in the first cylindrical treating chamber. A powder charging aperture for introducing the solid particles into the first cylindrical treating chamber together with gas is provided at the center of the front wall of the first cylindrical treating chamber, opposed to the front face of the first rotor. A first powder discharging aperture for discharging the treated solid particles is provided at the center of the rear wall of the first cylindrical treating chamber, opposed to the rear face of the first rotor. The first rotor is connected with the rotary shaft and rotated by the rotation of the rotary shaft. The height H a of the blades, the gap L 1a between the tip of each of the blades and the front wall, the largest diameter R 1a of the first rotor and the gap L 2a between the blades and the sidewall of the first cylindrical treating chamber satisfy the following conditions: 0.1 ≤ L 1a /H a ≤ 5.0, 50 × 10 -3 ≤ H a /R 1a ≤ 400 × 10 -3 and 1.0 × 10 -3 ≤ L 2a /R 1a ≤ 95 × 10 -3 .

    Fine powder production apparatus
    9.
    发明公开
    Fine powder production apparatus 失效
    微粉状体制造装置。

    公开(公告)号:EP0679442A3

    公开(公告)日:1995-12-20

    申请号:EP95109863.1

    申请日:1992-07-15

    IPC分类号: B02C19/06

    摘要: The invention provides a fine powder production apparatus comprising a pneumatic classifying means and a pneumatic impact pulverizing means, wherein said pneumatic impact pulverizer has an accelerating tube for accelerating powder to be pulverized with high pressure gas, and a pulverizing chamber which is equipped with an impact member against which powder collides to pulverize. One end of the acceleration tube is provided with a powder feed port and a high pressure gas ejection nozzle which are concentrically arranged. Further, a communicating means is provided for feeding discharged coarse powder from the pneumatic classifying means to the pneumatic impact pulverizing means. The pneumatic classifier means has a classifying chamber, a classifying plate having its center swelled, and a classifying louver so that powder fed with carrier gas is whirled in the classifying chamber and classified into fine powder and coarse powder by means of centrifugation.

    Gas current classifying separator
    10.
    发明公开
    Gas current classifying separator 失效
    Gasstrom-Klassierabscheider。

    公开(公告)号:EP0328074A2

    公开(公告)日:1989-08-16

    申请号:EP89102158.6

    申请日:1989-02-08

    IPC分类号: B07B7/086

    CPC分类号: B07B7/086

    摘要: A separator for classifying powder with air current comprises at least a classifying chamber (4) and an introducing means for introducing powder into said classifying chamber (4), a powder feeding inlet (11) for feeding powder formed at the upper portion of said classifying chamber (4), a cone-shaped classifying plate (5) with high central portion formed at the lower portion of said classifying chamber (4), a coarse powder dischaging outlet (6) for discharging coarse powder group provided at the lower brim outer peripheral of said classifying plate (5), a fine powder group discharging outlet (7) for discharging fine powder group provided at the central portion of said classifying plate (5), a gas inflowing means (12) for dispersing powder by whirling of gas provided at the upper outer peripheral of said classifying chamber (4), and a gas inflow inlet (8) for creating whirling current of gas for classifying powder provided at the lower portion of said classifying chamber.

    摘要翻译: 用于将粉末分类为气流的分离器至少包括分级室(4)和用于将粉末引入所述分级室(4)的引入装置,用于将粉末供给到所述分级室 室(4),具有形成在所述分级室(4)的下部的高中心部分的锥形分级板(5),用于排出设置在下边缘外侧的粗粉末组的粗粉末排出口(6) 所述分级板(5)的周边,设置在所述分级板(5)的中央部分的细粉末组的细粉组排出口(7),用于通过旋转气体分散粉末的气体流入装置 设置在所述分级室(4)的上外周,以及气体流入口(8),用于产生气体的旋转电流,用于分级设置在所述分级室的下部的粉末。