• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    [Problem] Eliminate the seepage of a grinding medium to thereby achieve operation with high circulation performance and simultaneous wear reduction on a stirring element (30) and a grinding media separation element (32). [Problem Solution] In a media agitator pulverizer (10), the agitating means (22) comprises: a circular and plate-shaped hub member (26) fixed to one end of a rotatable drive shaft (26) located inside the grinding chamber (FIG. 20), the rotatable drive shaft (24) extending from the side of one end of the grinding chamber (20) into the interior of the grinding chamber (20); an annular end plate (28) spaced axially in the direction of the rotatable drive shaft (24) from the hub member (26); a plurality of agitating elements 30) fixed between the hub member (26) and the end plate (28) at circumferential intervals, each of the agitating elements (30) extending radially outwardly with respect to the respective outer edge of the hub member (26) and the end plate (30). 28); and a plurality of grinding media scraper members (31) each extending radially inwardly of the outer edge of the hub member (26) and the end plate (28), an open area forming part of an outer edge of the agitating means (22) the thicknesses of the agitating elements (30) and the grinding media scraping elements (21) are formed as a grinding medium circulating opening (22a) for circulating the grinding media from the inside to the outside of the agitating means (22), and wherein an opening ratio of the grinding media circulating port (22a) to a peripheral surface between opposing surfaces of the hub member (26) and the end plate (28) of the stirring means (22) is set to 50 to 90%.
    公开号:CH709952B1
    申请号:CH01759/15
    申请日:2013-12-19
    公开日:2017-11-30
    发明作者:Onuki C/O Ashizawa Finetech Ltd Jiro；Ueno C/O Ashizawa Finetech Ltd Yoshinori；Ito C/O Ashizawa Finetech Ltd Hiroyuki
    申请人:Ashizawa Finetech Ltd；
    IPC主号:
    专利说明:

    Description TECHNICAL FIELD The present invention relates to a media agitator pulverizer for use in wet pulverization of a powder. The media agitator pulverizer of the present invention is particularly suitable for use in mixing material such as printing ink, paint, pigment, ceramic, metal, inorganic material, dielectric material, ferrite, toner, glass or paper coating with milling media However, it is not limited to pulverizing into fine particles.
    Background Art An example of conventional media agitator pulverizers for use in wet pulverization is i.a. An agitating grinder described in Japanese Patent Publication JP 2-10699 B (Patent Document 1). The agitating grinder described in Patent Document 1 comprises: a grinding body having a grinding chamber to be filled at least partially with grinding media and a material to be ground and having an inlet for the material to be ground and an outlet for the ground material, an agitator shaft having an inner shaft end in the interior the grinding chamber, and a separating means that allows the finished powdered material to flow out of the grinding chamber to the outlet but retains grinding media, the agitator shaft having an end portion with a cavity formed therein which is open at the inner shaft end and the end portion of the agitator shaft has recesses which are distributed around the cavity and spaced from the inner shaft end, through which the grinding media from the grinding chamber axially flow into the cavity and can flow back through the inner shaft end in the grinding chamber, and the separating means at least substantially disposed in the cavity is.
    Regardless of the nature of the particular construction of the separator, in the agitating mill disclosed in Patent Document 1, the separator is disposed in the cavity formed in the end portion of the agitator shaft and open at one end to be protected. This offers an advantage in that there is virtually no possibility that the grinding media can collide with the separator due to the rotation of the agitator shaft. In addition, the rotation of the agitator shaft may block the separation device, i. prevent a risk of blockage of the separator.
    However, in this agitating mill, when a circulation flow rate of the semi-liquid material is increased, or when the semi-liquid material has a high viscosity and a high concentration, the grinding media undesirably becomes in a region containing the distal ends of agitating elements which is not the agitator shaft) and constitutes an end portion of a flow within the grinding chamber, and is separated from each other in an area around a screen serving as a separator to cause an increase in internal pressure of the grinding chamber, so that a balanced operation is impossible. In addition, the separation of the grinding media causes a deterioration of the fluidity in an outer edge region of the agitator shaft acting as stirring elements. This leads to the problem that a solid component of the semi-liquid material settles in recesses in the area of the agitator shaft, which acts as a stirring element, or that outer edges of the distal ends of the stirring elements are subject to uneven wear due to the separating grinding media.
    Therefore, in order to solve this problem, a pulverizer capable of coping with a high flow rate has been developed, as disclosed in Japanese Patent Publication JP 3 663 010 B (Patent Document 2). The pulverizer disclosed in Patent Document 2 comprises: a hollow cylindrical grinding chamber having closed, opposite ends; a hollow cylindrical separator coaxially provided within the grinding chamber for separating an interior of the grinding chamber into two chambers, i. an inner chamber and an outer chamber to divide radially, the separator having a plurality of slots each formed around the entire circumference thereof to provide fluid communication between the two chambers; a stirrer unit provided inside the inner chamber and coaxially disposed with the grinding chamber; a material supply port providing fluid communication between an inner side and an outer side of the inner chamber; and a material discharge port that provides fluid communication between an inside and an outside of the outer chamber, wherein the stirring member is formed as a hollow cylinder, and wherein the stirring member has a recess and a projection which are mutually alternately provided on its outer peripheral surface thereof, and a Opening provided in a hollow cylindrical portion of the stirring member to penetrate in a direction from the inside to the outside thereof, and wherein the pulverizer is adapted to cause a material and grinding media together through the opening between the inside and the outside of the stirring element flow. The pulverizer is also formed such that a ratio of an axial length (L) to a diameter (D) of the grinding chamber (ratio L / D) is 1.0 or less.
    When Pulverisiergerät disclosed in Patent Document 2, the ratio L / D is set to 1.0 or less, so that the deposition of the grinding media can be overcome by distal ends of the stirring element. Further, a wall of the hollow cylindrical stirring member is provided with an opening penetrating in the direction from the inside to the outside thereof, and the screen formed for separating the semi-liquid material from the grinding media is formed around the stirring member, so that providing a structure capable of impeding flow from the inside of the agitating member to the screen, ie to increase a flow rate without causing a pressure increase and thus achieving balanced operation.
    However, the flow from the inside of the stirring member to the screen in the pulverizer disclosed in Patent Document 2 is the same as an outflow of the semi-liquid material separated from the grinding media. Thus, the grinding media is forced against the screen, thus causing a problem of significant wear of a screen surface.
    Therefore, JP 5 046 557 B (Patent Document 3) proposes a media agitator wet atomizer which is adapted to allow grinding media to easily flow inside a stirring member, so that the above-mentioned problem is solved. The media agitator wet atomizer disclosed in Patent Document 3 comprises: a cylindrical chamber; a hollow cylindrical separator radially dividing an interior of the chamber into an inner chamber and an outer chamber and having a plurality of slots each providing fluid communication between the two chambers; a rotating shaft provided rotatably so as to penetrate an end of the chamber; a rotor which is fixed to the rotating shaft and rotatably formed; a material supply port provided at the other end of the chamber for providing fluid communication between an inner side and an outer side of the inner chamber; and a material discharge port provided at an outer edge of the chamber to provide fluid communication between an inner side and an outer side of the outer chamber, the rotor consisting of a plurality of small rotors each comprising a cylindrical stirring portion and a disc-shaped retaining portion, and wherein the Rührteilabschnitt a plurality of through holes, each providing fluid communication between the inside and the outside thereof. This structure provides an improved flowability of the grinding media. However, a flow from an inside of the stirring element to the screen is the same direction as an outflow of the separated from the grinding media semi-liquid material. Thus, when a recirculation rate is increased, a force which acts to reflux the grinding media to the inside of the agitating member is insufficient to resist drainage of the semi-fluid material, resulting in significant wear of the screen.
    Summary of the Invention [Technical Problem] It is an object of the present invention to provide a media agitating pulverizer capable of overcoming the separation of the grinding media, which is recognized as a problem in conventional media agitating pulverizers In order to allow thus in operation a high circulation capacity with simultaneous wear reduction of a stirring element and a grinding media-separating element.
    [Solution to the Technical Problem] The above-mentioned object is achieved with a media agitating pulverizer according to the present invention having the following features (1) to (13).
    (1)
    A media agitator pulverizer comprises: a cylindrical grinding chamber; a cylindrical stirring means disposed within and rotatable coaxially with respect to the grinding chamber; a grinding media separating means coaxially disposed within the stirring means; a grinding chamber disposed between an outer edge of the stirring means and an inner edge of the grinding chamber; grinding media contained in the grinding chamber; a material supply for feeding a semi-liquid material into the grinding chamber; and a material discharge for discharging a finely divided and / or pulverized material out of the grinding chamber, the stirring means comprising: a circular and plate-shaped hub member secured to one end of a rotatable drive shaft located inside the grinding chamber, the rotatable one Drive shaft extends from the side of one end of the grinding chamber into the interior of the grinding chamber; an annular end plate axially spaced from the hub member in the direction of the rotatable drive shaft; a plurality of stirring members fixed between the hub member and the end plate at circumferential intervals, each of the stirring members projecting radially outward with respect to the respective outer edge of the hub member and the end plate; and a plurality of grinding media stripping members for stripping the grinding media accumulating inside the stirring means toward the exterior of the stirring means, the grinding media stripping members being fixed between the hub member and the end plate at circumferential intervals with each of the grinding media stripping members radially inward relative to each other and an open area as part of an outer edge of the agitating means except for the thicknesses of the agitating elements and the grinding media scraping elements as a grinding media circulating port for circulating the grinding media from the inside to the outside of the agitating means and wherein an opening ratio as the area ratio of the grinding medium recirculation opening to a peripheral surface between facing surfaces of the hub member and the end plate of the stirring means is 50 to 90%.
    (2)
    The media agitating pulverizer as explained in (1), wherein the opening ratio of the grinding medium recirculation opening to the peripheral surface between opposing surfaces of the hub member and the end plate of the agitation means is 70 to 90%.
    (3)
    The media agitating pulverizer as explained in (1) or (2), wherein the ratio of a radial length of a processing surface of each grinding media scraping member to a radial length of a processing surface of the stirring means is 3: 7 to 7: 3.
    (4)
    The media agitating pulverizer as explained in (3), wherein the ratio of the radial length of the processing surface of each grinding media scraping member to the radial length of the processing surface of the stirring means is 4: 6 to 6: 4.
    (5)
    The media agitating pulverizer as explained in (1), (2), (3) and / or (4), wherein an angle defined between a processing surface of each grinding media scraping member and a radial axis of the stirring means is 0 to 45 degrees.
    (6)
    The media agitating pulverizer as explained in (5), wherein an angle defined between a processing surface of each grinding media scraping member and a radial axis of the stirring means is 10 to 40 degrees.
    (7)
    The media agitator-pulverizer as explained in (1), (2), (3), (4), (5) and / or (6), wherein each of the plurality of stirring member sets and grinding media Abstreifelementsätze is integrally formed.
    (8)
    The media agitating pulverizer as explained in (1) to (7), wherein the grinding media separating means comprises a separator body and a support member supporting the separator body, and wherein the separator body has an outer diameter of 80% or more of the diameter a circle connecting respective inner edges of the grinding media stripping elements, and a gap between the diameter of the circle connecting the inner edges of the grinding media stripping elements and the outer diameter of the separator body is three times greater or four times greater than a diameter of each grinding medium.
    (9)
    The media agitating pulverizer as explained in (8), wherein the grinding medium separating agent is fixed to the other end side of the grinding chamber, and wherein the separating agent body is inserted from the other end side into an internal space of the stirring means.
    (10)
    The media agitator-pulverizer as explained in (1) to (9), wherein the grinding media-separating agent is a sieve-like, pulverizing medium-separating agent.
    (11)
    The media agitator pulverizer as explained in (8) or (9), wherein the separator body is completely accommodated in an interior of the stirring means.
    (12)
    The media agitating pulverizer as in (9) or (11), wherein the separator body has a total length which is 20 to 80% of a total length of the interior of the stirring means.
    (13)
    The media agitating pulverizer as explained in (8), wherein the support member has an outer diameter which is 50% or more of an inner diameter of the stirring means, and the gap between the inner diameter of the stirring means and the outer diameter of the support member against an inner diameter of the end plate of Stirring agent is three times larger or even larger than the diameter of each grinding medium.
    [Operation of the Invention] In the media agitating pulverizer of the present invention having the above-mentioned features, a flow is formed by a centrifugal force action of the stirring means, causing the grinding media and the semi-liquid material inside the stirring means be directed to the outside of the stirring means. Furthermore, the opening ratio of the grinding medium circulation opening of the stirring means is set to 50 to 90%, that is, the stirring ratio. that the grinding media circulation opening is widely opened in a peripheral surface of the stirring means, so that it becomes possible to prevent adhesion of a solid component to an inside of the stirring means and to sufficiently control flow of the grinding media to the inside and outside of the stirring means without the flow is obstructed even with semi-liquid material with high viscosity and high concentration.
    In the media agitating pulverizer of the present invention, the outer diameter of the separator body can be set to 80% or more of the diameter of the circle connecting the inner edges of the grinding media scraping members 31, and the gap between the diameter of the circle containing the Inner edges of the Mahlme-dien Abstreifelemente connects, and the outer diameter of the Abscheidemittelkörpers can be adjusted so that it is three times larger or even larger than the diameter of each grinding medium, ie each of the grinding medium stripping elements and the separation body can be arranged adjacent to each other. This allows the milling media, which accumulates around an outer edge of the separator body, to easily flow outside the agitating means, thereby reducing the separation of the grinding media around the separator body and wear by milling media.
    Further, in the media agitating pulverizer of the present invention, the outer diameter of the support member of the grinding media deposition means can be set to 50% or more of the inner diameter of the annular end plate of the stirring means, and the gap between the inner diameter of the annular end plate of the stirring means and the Outer diameter of the support member can be adjusted so that it is three times larger or even larger than the diameter of each grinding medium. In this case, it becomes possible to prevent the obstruction of the flow of a mixture of grinding media and the semi-liquid material to an interior of the stirring means and to reduce the separation of the grinding media around an open end of the stirring means and uneven wear by the grinding media. This allows for balanced operation without increased internal operating pressure of the grinding chamber and hence high flow rate operation.
    Brief description of the drawings [0027]
    1 is a longitudinal sectional view of a media agitating pulverizer according to an embodiment of the present invention.
    Fig. 2 is a perspective view showing a main part of the media agitating pulverizer shown in Fig. 1;
    Fig. 3 is a perspective view showing only a stirring means in Fig. 2 shown main component.
    Fig. 4 is a transverse sectional view of the media agitating pulverizer shown in Fig. 1, wherein the cross section is selected so as to appropriately show a configuration of an element or component with a drum discharged.
    Fig. 5 is a view corresponding to Fig. 4 and showing a modification of a construction of a stirring means and a grinding media scraping member.
    6 is a graph showing results of a performance test of a media agitating pulverizer according to an embodiment of the present invention and a media agitating pulverizer in comparison.
    DESCRIPTION OF EMBODIMENTS A media agitator pulverizer according to the present invention will now be described with reference to the accompanying drawings. Fig. 1 illustrates a media agitator pulverizer 10 according to an embodiment of the present invention. The media agitator pulverizer 10 has a grinding chamber 20 comprising: a cylindrical drum 12; an end plate 14 fixed to one end of the drum 12; and a frame, not shown, which is fixed at the other end of the drum 12 through a Materialzuführungsflansch 16 therethrough. The grinding chamber 20 is constructed so that a hermetically sealed grinding chamber C1 is formed therein. As is known, in the media agitating pulverizer in the grinding chamber C1 grinding media, not shown, are contained in the form of beads.
    The drum 12 has an inner space in which a stirring means 22 is rotatably arranged. The stirring means 22 is arranged coaxially with respect to the drum 12 and thus the grinding chamber 20. The stirring means 22 comprises: a circular and dish-shaped hub member 26 fixed to one end of a rotatable drive shaft 24 located within the grinding chamber 20, the rotatable drive shaft 24 extending from the one end of the grinding chamber 20 into the grinding chamber; an annular end plate 28 spaced axially in the direction of the rotatable drive shaft 24 from the hub member 26; a plurality of stirring members 30 fixed between the hub member 26 and the end plate 28 at circumferential intervals, each of the stirring members 30 projecting radially outward with respect to the respective outer edge of the hub member 26 and the end plate 28; and a plurality of grinding media stripping members 31 for stripping the grinding media accumulating inside the stirring means 22 toward the outside of the stirring means 22, the grinding media stripping members 31 being fixed between the hub member 26 and the end plate 28 at circumferential intervals, each of the grinding media Stripping elements extending radially inwardly with respect to the outer edge of the hub member and the end plate.
    An open area as part of an outer edge of the agitating means 22 except for the thicknesses of the agitating elements 30 and the grinding media scraping elements 31 is formed as a grinding medium recirculation opening 22a for circulating the grinding media from inside to outside of the agitation means, using an opening ratio as Area ratio of the grinding medium Umwälzöffnung 22a to a peripheral surface between opposing surfaces of the hub member 26 and the end plate 28 of the stirring means 22 is set to 50 to 90%, particularly preferably 70 to 90%. This embodiment discloses an example in which each of the plural sets of stirring members 30 and grinding media scraping members 31 is integrally formed. Alternatively, as shown in FIG. 5, they may be separate elements. However, the integrally formed stirring means make it possible to set the opening ratio to a larger value. If the opening ratio exceeds the range, the thicknesses of the stirring members 30 and the grinding media scraping members 31 decrease relatively. This increases the likelihood of a loss of strength and thus of a fracture-susceptible construction.
    The rotatable drive shaft 24 extends so that it penetrates the frame in the axial direction and its other end can be connected via a not shown and known drive mechanism with a drive source, so that it can be driven in rotation in a predetermined direction. The rotatable drive shaft 24 is provided with a shaft seal, not shown (mechanical seal or the like). The Materialzuführungsflansch 16a is formed for the supply of a semi-liquid material into the grinding chamber C1 with a material supply 16a. The material supply 16a has a material supply opening 16b for the actual introduction of material into the grinding chamber C1, wherein the material supply opening 16b preferably laterally on a rear surface of the stirring means 22, i. a rear surface of the hub member 26, is positioned. As is known, in the media agitating pulverizer in the grinding chamber C1 grinding media, not shown, are contained in the form of beads.
    The stirring means 22 has an internal space in which a grinding media separating element 32 is provided so as to be disposed opposite to the rotary drive shaft 24 so that the stirring means 22 can deposit the grinding media distributed in the semi-liquid material from the material. The interior of the stirring means 22, in particular a space between the grinding media separating means 32 and a cylindrical wall of the stirring means 22 is referred to below as the media separation chamber C2. As the grinding medium separating means 32, a kind of sieve (see Fig. 1) or a kind of centrifugal blade (not shown) may be used. In particular, in the present invention, a sieve-shaped grinding media-depositing agent is usable.
    The sieve-shaped grinding medium separating means 32 comprises: a separating agent body 34 disposed inside the stirring means 22 and provided with a circulating sieve separator 34a; and a support member 36 supporting the separator body. The grinding media separating means 32 is at the other end side of the grinding chamber, i. fixed to the end plate 14, and the Abscheidemittelkörper 34 is inserted from the side of the other end into the interior of the stirring means. That is, the support member 36 has a bottom end fixed to the end plate 14 and extends from the bottom end into the interior of the stirring means 22 and thus has a distal end to which the separator body 34 is fixed.
    The Abscheidemittelkörper 34 is preferably completely received in the interior of the stirring means 22. Particularly preferably, this Abscheidemittelkörper has an overall length which is 20 to 80% of the total length of the interior of the stirring means 22. The Abscheidemittelkörper 34 is preferably disposed near the hub member 26 in the interior of the stirring means 22.
    The separator body 34 preferably has an outer diameter that is 80% or more of a diameter of a circle connecting the respective inner edges of the grinding media stripping elements 31, and a gap between the diameter of the circle surrounding the inner edges of the grinding media stripping elements connects, and the outer diameter of the Abscheidemittelkörpers is three times greater or even larger than a diameter of each grinding medium. This is intended to increase the effect of the grinding media stripping elements 31.
    The support member 36 preferably has an outer diameter that is 50% or more of an inner diameter of the annular end plate 28 of the stirring means 22, and a gap between the inner diameter of the stirring means and the outer diameter of the support member is three times larger or even larger than the diameter of every grinding medium. In this case, the outer diameter of the carrier element 36 is at most equal to an outer diameter of the Abscheidemittelkörpers 34 and preferably smaller than the outer diameter of the Abscheidemittelkörpers 34. This is to allow the unhindered inflow of a mixture of the semi-liquid material and the grinding media in the separation chamber C2.
    A ratio of a radial length of a processing surface of each grinding media scraping element 31 to a radial length of a processing surface of each of the respective stirring elements 30 is 3: 7 to 7: 3, preferably 4: 6 to 6: 4, especially if the two elements are integrally formed are. Although the processing surface of the grinding media scraping member 31 may extend from an outer peripheral edge of the annular end plate 28 of the agitating means 22 as shown in the drawing and then project inwardly from an inner peripheral edge of the annular end plate 28, it preferably terminates at the inner peripheral edge.
    In this embodiment, an angle α defined between the processing surface of each grinding medium scraping member and a radial axis of the stirring means 22 is 0 to 45 degrees, preferably 10 to 40 degrees. A wiping end of each grinding media wiping member 31 is preferably formed as a surface extending at an acute angle from a surface of the separator body 34 toward a rotationally downstream side thereof, as shown in FIG.
    The grinding medium separating means 32 is provided with a material discharge 38, which extends as shown in Fig. 1 from an outer side of the grinding chamber 20 to an inner side of the Abscheidemittelkörpers 34. An end of the material discharge 38, which is open toward the inside of the separator body 34, is formed as a material discharge opening 40.
    At the start of operation, the stirring means 22 is rotationally driven, while semi-liquid material containing target particles to be pulverized is introduced as material through the material supply 16a. The semi-liquid material introduced into the grinding chamber C1 is stirred together with the grinding media to carry out a rotary movement within the grinding chamber C1. Depending on the rotational movement of the grinding media, the particles are pulverized or distributed in the semi-liquid material. Along with the milling media, the semi-liquid material passes mainly through an opening of one end of the agitation means 22 into the interior cavity, i. the separation chamber C2, the stirring means. Depending on the grinding medium separating means 32, the grinding media are then separated from the semi-liquid material, and only the semi-liquid material is guided through the material discharge 38 to the outside.
    During the above-described operation, the grinding media mainly adhering to the separation screen 34a of the separator body 34 of the grinding media deposition means 32 is stripped by rotation of the grinding media scraper elements 31 of the agitating means 22 and through the grinding media circulating port 22a to the outside of the stirring means 22, after which the grinding media are reused to pulverize or distribute target particles in a semi-liquid material.
    Instantaneous electric power was measured using the media agitator pulverizer 10 shown in Figs. 1 to 4 under the following conditions: glycerin (viscosity: 800 mPS (25 ° C), 200 mPS (45 ° C) C)) was used as a semi-liquid material; a filling capacity of the grinding media in the grinding room was set at 80%, and the opening ratio of the grinding medium recirculation opening 22a was gradually set to 30%, 45%, 55%, 65%, 75%, 85% and 95%, while a feed flow rate of the semi-liquid Material was changed constantly. A result of the measurement was as shown in the diagram of FIG. 6 presented. When the opening ratio has been set to 95%, the strength of the stirring member and the grinding medium scraping member decreases, so that breakage occurs in the element during measurement. This was rated as unusable. From this graph, it can be seen that the present invention achieves advantageous effects.
    List of Reference Numerals [0043] FIG. 10: Media Agitator Pulverizer 12: Drum 14: End Plate 16: Material Supply Flange 16a: Material Supply 16b: Material Outlet 18: Rack 20: Milling Chamber 22: Stirring Means 22a: Milling Media Circulating Port 24: Rotatable Drive Shaft 25: Shaft Seal Element 26 : circular and plate-shaped hub member 28: annular end plate 30: stirring member
    权利要求:
    Claims (13)
    [1]
    31: grinding media stripping element 32: grinding media separating means 34: separating means body 34a: separating screen 36: carrier element Claims
    A media agitator pulverizer (10) comprising: a cylindrical grinding chamber (20); cylindrical stirring means (22) disposed within and coaxially rotatable with respect to the grinding chamber (20); a grinding media separating means (32) coaxially disposed within the stirring means (22); a grinding chamber (C1) disposed between an outer edge of the stirring means (22) and an inner edge of the grinding chamber (20); grinding media contained in the grinding chamber (C1); a material supply (16a) for supplying a semi-liquid material into the grinding chamber (20); and a material discharge (38) for discharging a finely divided and / or pulverized material from the grinding chamber (20), the stirring means (22) comprising: a circular and plate-shaped hub member (26) disposed at one end of a rotatable drive shaft (24 ), which is located inside the grinding chamber (20), the rotatable drive shaft (24) extending from the side of one end of the grinding chamber (20) into the interior of the grinding chamber (20); an annular end plate (28) spaced axially in the direction of the rotatable drive shaft (24) from the hub member (26); a plurality of stirring members (30) fixed between the hub member (26) of the end plate at circumferential intervals, each of the stirring members (30) projecting radially outward with respect to the respective outer edge of the hub member (26) and the end plate (28); and a plurality of grinding medium stripping elements (31) for stripping the grinding media accumulating inside the stirring means (22) toward the exterior of the stirring means (22), the grinding media stripping elements (31) between the hub member (26) and the end plate (32). 28) are defined at circumferential intervals, each of the grinding media stripping elements (31) extending radially inwardly with respect to the outer edge of the hub member (26) and the end plate (28), and wherein an open area forms part of an outer edge of the stirring means (31). 22) except for the thicknesses of the agitating members (30) and the grinding media scraping members (31) as a grinding medium circulating port (22a) for circulating the grinding media from the inside to the outside of the agitating means (22), and wherein an opening ratio as the area ratio of the Grinding media circulating opening (22a) to a peripheral surface between facing surfaces of the hub member (26) and the end plate (28) of the R hrmittels (22) is 50 to 90%.
    [2]
    The media agitating pulverizer (10) according to claim 1, wherein the opening ratio of the grinding medium circulating port (22a) to the peripheral surface between facing surfaces of the hub member (26) and the end plate (28) of the agitation means is 70 to 90%.
    [3]
    The media agitating pulverizer (10) according to claim 1 or 2, wherein the ratio of a radial length of a processing surface of each grinding media scraping member (31) to a radial length of a processing surface of the stirring member (30) is 3: 7 to 7: 3 is.
    [4]
    The media agitating pulverizer (10) according to claim 3, wherein the ratio of the radial length of the processing surface of each grinding media scraping member (31) to the radial length of the processing surface of the stirring member (30) is 4: 6 to 6: 4.
    [5]
    The media agitator pulverizer (10) according to any one of claims 1 to 4, wherein an angle (a) defined between a processing surface of each grinding media scraping member (31) and a radial axis of the stirring means (22) is 0 to 45 degrees.
    [6]
    The media agitating pulverizer (10) according to claim 5, wherein an angle (a) defined between a processing surface of each grinding media scraping member (31) and a radial axis of the stirring means (22) is 10 to 40 degrees.
    [7]
    The media agitator pulverizer (10) according to any one of claims 1 to 6, wherein each of said plurality of sets of agitating elements (30) and grinding media scraping elements (31) is integrally formed.
    [8]
    A media agitator-pulverizer (10) according to any one of claims 1 to 7, wherein said grinding media separating means (32) comprises a separator body (34) and a carrier member (36) supporting said separator means body (34), and wherein the separator body (34) has an outer diameter that is 80% or more of the diameter of a circle connecting respective inner edges of the grinding media wiping members (31), and a gap between the diameter of the circle surrounding the inner edges of the grinding media wiping members (31 ) and the outer diameter of the Abscheidemittelkörpers (34) is three times greater or four times greater than a diameter of each grinding medium.
    [9]
    The media agitating pulverizer (10) according to claim 8, wherein said grinding medium separating means (32) is fixed to the other end side of said grinding chamber (20), and said separating agent body (34) is penetrated from the other end side an interior of the stirring means (22) is inserted.
    [10]
    The media agitator-pulverizer (10) according to any one of claims 1 to 9, wherein the grinding media separating means (32) is provided with a rotary screen cutter (34a).
    [11]
    The media agitator pulverizer (10) according to claim 8 or 9, wherein the separation agent body (34) is completely accommodated in the interior of the stirring means (22).
    [12]
    The media agitator pulverizer (10) according to claim 9 or 11, wherein the separation agent body (34) has an overall length which is 20 to 80% of an entire length of the interior of the stirring means (22).
    [13]
    The media agitating pulverizer (10) according to claim 8, wherein the support member (36) has an outer diameter which is 50% or more of an inner diameter of the annular end plate (28) of the stirring means (22), and a gap between the inner diameter the stirring means (22) and the outer diameter of the carrier element (36) compared to an inner diameter of the end plate (28) of the stirring means (22) is three times greater or even greater than the diameter of each grinding medium.
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    同族专利:
    公开号 | 公开日
    KR101743381B1|2017-06-02|
    DE112013007132T5|2016-03-10|
    TW201446328A|2014-12-16|
    JP5404955B1|2014-02-05|
    WO2014196101A1|2014-12-11|
    US9895697B2|2018-02-20|
    CN105246597A|2016-01-13|
    US20160114332A1|2016-04-28|
    JP2014233673A|2014-12-15|
    CN105246597B|2017-04-26|
    TWI604891B|2017-11-11|
    KR20150122228A|2015-10-30|
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    法律状态:
    优先权:
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    JP2013116611A|JP5404955B1|2013-06-03|2013-06-03|Medium agitating crusher|
    PCT/JP2013/084066|WO2014196101A1|2013-06-03|2013-12-19|Medium stirring type pulverizer|
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