US3533566A - Stirrer-ball mill - Google Patents

Stirrer-ball mill Download PDF

Info

Publication number
US3533566A
US3533566A US691646A US3533566DA US3533566A US 3533566 A US3533566 A US 3533566A US 691646 A US691646 A US 691646A US 3533566D A US3533566D A US 3533566DA US 3533566 A US3533566 A US 3533566A
Authority
US
United States
Prior art keywords
grinding
compartment
stirrer
shaft
ball mill
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US691646A
Other languages
English (en)
Inventor
Kurt Macquat
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AUTOMATICA SA
Original Assignee
AUTOMATICA SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH1847566A external-priority patent/CH459724A/de
Application filed by AUTOMATICA SA filed Critical AUTOMATICA SA
Application granted granted Critical
Publication of US3533566A publication Critical patent/US3533566A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge

Definitions

  • a stirrer-ball mill for the size reduction of fluent granular material comprising housing means internally providing a substantially cylindrical vertically arranged grinding chamber.
  • a rotatable shaft is substantially coaxially disposed in the grinding chamber, such rotatable shaft being provided with a plurality of substantially radially projecting stirrer elements.
  • At least one substantially horizontally arranged partition member provided with throughflow openings serves to subdivide the grinding chamber into separate compartments. Grinding bodies are located in such compartments, the grinding bodies of each compartment possessing different dimensions than the grinding bodies in any other compartment.
  • the present invention relates to an improved stirrerball mill apparatus for the size reduction of fluent granular material and which is of the type incorporating a vetrically arranged substantially cylindrical pulverizing or grinding chamber equipped with a coaxially disposed rotatable shaft from which radially protrude a plurality of stirring elements, and such grinding chamber is further provided with freely movable grinding or pulverizing bodies.
  • fluent material or equivalent terms should be understood to encompass, for example, powder-like substances, plastic substances, liquids and granulated material, all of which may contain comparatively large particles. These types of fluent materials are known, among others, in the foodstuff, chemical and dye industries.
  • stirrerball mill In general, crushing of their granules takes place in mills, of which one known type is the socalled stirrerball mill.
  • Such mill generally consists of a vertical housing having a circular-shaped cylindrical inner chamber provided with a coaxially disposed rotatable shaft. A portion of the inner chamber of the housing is constructed as a grinding or pulverizing chamber which is bounded at its lower and upper ends by a respective partition wall provided with throughflow openings for the material.
  • the shaft In the region of this grinding chamber the shaft is equipped with radial stirring or agitator elements.
  • the stirrer ball mills contains a large number of grinding bodies, preferably balls, in their grinding chamber. As a material for these balls there is selected one having a high specific weight in consideration of maximum pressure and abrasion resistance, and, in addition, it should not produce any physiologically adverse effects if used in connection with foodstuffs.
  • stirrer ball mill suitably shaped stirring eleemnts rotate and agitate the material which, in turn, is interspersed with grinding balls.
  • the drive energy of the shaft is transferred to the material being ground.
  • the crushing effect exerted upon the coarsegrained particles of the mass is caused by mechanical force as well as by hydraulic friction.
  • the energy transferred by the stirring mechanism accomplishes the size reduction or crushing within the pressure zones between the individual grinding balls and between the grinding balls and the wall of the chamber. Additionally, from one grinding ball to the other there oftentimes exist substantial differences in velocity, leading to the formation of hydrodynamic zones of shear stress.
  • the grinding capacity or efliciency can be increased by reducing the diameter of the grinding balls, in that the required length of time for the grinding process can be shortened.
  • the required minimal diameter of the grinding balls is dependent upon the largest possible existent size of the particles to be crushed in order to even accomplish size reduction or crushing.
  • Another, more specific object of this invention is directed to the provision of an improved stirrer-ball mill of the mentioned type which is extremely simple and robust in construction, not readily subject to breakdown, highly reliable and efiicient in operation, and capable of subjecting the fluent material to a substantially uniform size reduction;
  • stirrer ball mill according to the invention is generally manifested by the features that the grinding chamber is subdivided by at least one horizontal partition device or member equipped with throughflow openings, and that the grinding bodies in each subdivision or compartment have different sizes.
  • the grinding bodies become successively smaller in the successive subdivisions or compartments, preferably in the direction of the throughfiow of the material in the mill.
  • This technique makes it possible to approach the optimum grinding capacity hitherto unattained, in that it is possible to choose the grinding bodies for each subdivision or compartment according to the size of the particles of the mass found therein and to clearly keep separated from one another the selected grinding bodies of different dimensions.
  • a shaft whose diameter is at least one-third the diameter of the grinding chamber. This means, however, that with the same number of revolutions of the shaft and the same diameter of the grinding chamber, the shaft attains a higher peripheral velocity, thereby causing greater differences of velocity and, thus, greater frictional forces in the layers of material which coaxially surround the shaft. It also means that a greater centrifugal force of the particles located on or near the surface of the material can be achieved. If the friction and the centrifugal force are sufficiently great, the release loosening of these layers from the shaft and their flow into the grinding process can be substantially improved.
  • Another advantage of the relatively thick shaft is its large surface which may be directly utilized as a cooling surface by mounting a cooling pipe into the wall of the shaft. This measure allows for a good regulation of the temperature of the mass during the grinding process.
  • the grinding chamber is provided with at least one subdivision or compartment which does not contain any grinding bodies.
  • This compartment or subdivision may be placed between grinding compartments having grinding bodies of different dimensions and may be connected with pipes leading to the outside.
  • the mass may be also aerated through its distribution over large surfaces or any other desired substances may be added to the mass between the individual grinding stages.
  • FIG. 1 is a longitudinal sectional view of a conventional stirrer-ball mill with inlets and outlets and a driving arrangement
  • FIG. 2 is a longitudinal sectional view depicting the grinding chamber of a stirrer-ball mill designed according to the teachings of the present invention
  • FIG. 3 is a fragmentary view depicting details of a friction slot for closing the lower and upper ends of the grinding chamber.
  • FIG. 4 illustrates the subdividcdor compartmentized 4 grinding chamber of a stirrer-ball mill designed according to a preferred embodiment of the invention.
  • FIG. 1 illustrates a stirrerball mill of known construction consisting of a grinding chamber or compartment 12 which is surrounded by a cylindrical wall 11.
  • the grinding chamber 12 is closed off at the bottom and top by a respective partition member 17 and 18, for instance apertured partition walls, which allows passage of the material to be ground.
  • a shaft 16 is placed in the interior of this grinding chamber 12 and to which are attached radially extending stirring or agitator elements 14. These stirrer or stirring elements 14 are distributed over the entire length of the shaft 16, yet for the sake of clarity only six such stirrer elements are illustrated at the lower part of the shaft 16.
  • These stirring elements 14 may be in the shape of circular disks which extend from the shaft 16 into the grinding chamber 12, and they may extend close to the housing wall 11. However, they can also be short and may be attached at the same level as the rings 14a attached to the housing wall 11, or they may overlap the rings 14'a protruding from the housing wall 11, as shown in FIG. 2 for instance.
  • the shaft 16 is provided with a respective journal pin 26 and 27 at its lower and upper end.
  • the journal pin 26 at the lower end is guided in a bearing 26a arranged in the bottom compartment or region 25, whereas the upper journal pin 27 is connected with a suitable transmission 15 through a bearing 27a placed in the upper closure region or compartment 28.
  • Transmission 15 serves to connect the shaft 16 with a suitable non-illustrated drive motor.
  • the bottom region or compartment 25 conically narrows in downward direction and is connected with a three-way valve or cock 29.
  • the upper closure region or compartment 28 is connected with conduit or pipe 19 which leads off the ground material or mass. This outlet pipe 19 incorporates a branch line 19a which also connects with the three-way valve 29.
  • the third connection with the three-way valve 29 consists of the conduit or pipe 10 which serves for the infeed of the material to be ground.
  • Infinitely variable feed pumps 21 and 20 are arranged at the feed pipe 10 as well as the outlet pipe 19. Pumps 21 and 20 serve to respectively feed the mass to be ground into the mill and to lead it away.
  • the three-way valve 29 can be set in such manner as to permit continuous throughfiow or a closed circulation, whereby in the latter instance the material is circulated several times through the mill.
  • grinding bodies for instance in the shape of balls 43, 44 and 45 of the type shown in FIG. 2, and which move freely between the stirring elements 14. These balls 43, 44 and 45 are preferably formed from steel or hard ceramic.
  • the grinding compartment or chamber 12 shown in FIG. 2 possesses the inventive separation or partition devices 17a, 17'a.
  • These partition devices 17a and 17a are here shown as substantially ring-shaped disks provided with throughfiow openings or apertures 49 and 49, respectively permitting passage of the material or mass to be ground.
  • These disks 17a and 17 'a are attached to the outside housing wall 11 of the grinding chamber 12 and practically touch the shaft 16 without, however, impeding its rotation.
  • the partition members or dividers 17a and 17a subdivide the grinding chamber 12 into three grinding compartments or sections 46, 47, 48.
  • Each grinding compartment or section 46, 47 and 48 contains a certain number of balls 43, 44 and 45, respectively, used as grinding bodies, only some of which are shown for the sake of clarity in illustration.
  • the partition members 17a and 17'a allow the through- How of the material to be ground, but not the balls 43,
  • Each section or compartment 46, 47, and 48 of the grinding chamber 12 contains balls of a different size whereby the larger balls 43 are placed in the lowest grinding compartment or section 46, the medium size balls 44 in the intermediate or middle grinding compartment or section 47, and the smallest balls 45 in the uppermost grinding compartment or section 48.
  • the size of the balls 43, 44 and 45 in the individual grinding compartments 46, 47 and 48, respectively, is the same.
  • the entire grinding chamber 12 has a height of 2 meters and an inside diameter of 40 centimeters and carries, for instance, 96 stirring elements 14 in the shape of shovel blades.
  • These shovel blades 14 are arranged radially and axially offset with respect to one another and form a spiral or helical line with twelve turns on the shaft, wherein each turn or convolution possesses eight blades.
  • these shovel blades 14 are inclined with respect to the horizontal, as can be seen best by inspecting FIG. 3.
  • the spiral or helical line formed by the shovel blades 14 is, of course, interrupted in the area of the partition members 17a and 17'a, and four threads having thirty-two shovel blades are disposed in each of the grinding compartments or sections 46, 47 and 48. Additionally, those shovel blades 14 pointing in the same radial direction are preferably arranged in rows running parallel to the axis of the shaft 16.
  • the housing wall 11 and the shaft 16 are equipped with a double-wall construction, as shown, in order to divert or remove the heat produced during the grinding operation, and to this end it is possible to pass a suitable coolant through the respective areas 11a and 16a thus enclosed by the illustrated double walls.
  • shovel blades 14 are also possible to arrange the shovel blades 14 on the shaft 16, so as to permit them to rotate about their radial axes, as can be particularly seen in FIG. 3.
  • the vertical rows of shovel blades 14 are preferably rotatable independently of one another.
  • FIG. 3 further illustrates details of the upper closing or partition device 18 constructed as a friction slot 100.
  • This friction slot 100 embodies a substantially circularshaped disk 31 which is attached to the shaft 16 and a sub stantially ring-shaped disk 32 attached to the housing wall 11 in axial spacing from the disk 31.
  • the distance between disk 31 and disk 32 is smaller than the size of the grinding balls in the adjoining grinding compartment.
  • a fluent mass is fed into the bottom region or area 25 through an inlet pipe, such as pipe of FIG. 1.
  • the ascending mass spreads practically evenly over the entire entrance area of the grinding chamber 12 separated by the divider or partition wall 17.
  • the mass or material is then pushed upwards, passing through the grinding balls 43, after its entrance into the grinding chamber 12.
  • the shovel blades 14 of the rotating shaft 16 engage these grinding balls 43 and move them intensively, resulting in the comminution or crushing of the material therebetween.
  • the largest particles contained in the material are primarily reduced in size within this compartment.
  • the material having been pushed upwards, then enters the intermediate grinding section or compartment 47 through the aperatured partition wall 17a, where it then comes into contact with the smaller balls 44 which have the same total weight but possess a substantially larger frictional area, so that the mass is further ground in this compartment 47.
  • the mass or material After passage through the middle grinding compartment or section 47, the mass or material then reaches the upper grinding compartment or section 48 through the partition wall or divider 17a in which there are located the still smaller balls which possess a still larger frictional area although the same total weight.
  • the material After passage through the upper grinding section 48, the material then reaches the closure or terminal area 28 from where it is withdrawn by the pump 20 into the pipe or conduit 19.
  • 350 kilogram grinding balls 43 having a diameter of 12 millimeters can be used in the lower compartment 46
  • 350 kilogram grinding balls 44 having a diameter of 10 millimeters can be used in the middle or intermediate compartment 47
  • 350 kilogram grinding balls 45 having a diameter of 6 millimeters can be used in the upper grinding compartment or section 48.
  • FIG. 4 depicts an embodiment of inventive stirrer-ball mill containing a cylindrical housing and a shaft 61 arranged concentrically with respect to one another.
  • the cylindrical housing 60 is closed off at its upper and lower ends by closure sieves or friction slots 62 and 63, respectively, as already described in connection with FIG. 3.
  • the bottom area 64 is fed by two conduits or pipes, one pipe 65 bringing in the material to be ground and the other pipe 66 allows the introduction of a suitable treatment medium, as e.g., air, into the material.
  • the upper terminal region area 67 is connected with a pipe 68 which removes the ground and treated mass.
  • the pipes 66 and 67 may be provided with suitable pumps or the like, in the manner previously considered with regard to the construction of FIG. 1.
  • the upper end of the shaft 61 is connected with a suitable infinitely variable transmission or drive unit 70 operated by a suitable electric motor (not shown).
  • the shaft 61 has attached thereto and aligned in vertical rows stirring or stirrer elements in the shape of shovel blades 75, and 75".
  • These shovel blades 75, 75 and 75" form vertical rows which are displaced in the longitudinal direction of the row, that is, displaced vertically with respect to one another. This displacement is selected in such a manner that, if shovel blades are used which are inclined with respect to the horizontal, the lower and upper edges of a shovel blade are disposed at the same height as the upper and lower edges of its neighboring shovel blade.
  • a circular ring-shaped scraper 76 is attached to the shaft 61 between the shovel blades 75', the function of which is to interrupt the How of the marginal layer of material ascending along the shaft 61, and to return this outer layer into the remainder of the material and to permit it to commingle therewith.
  • partition members 80, 81, 82, 83 The entire chamber enclosed by the housing 60 is subdivided by partition members 80, 81, 82, 83 into five compartments having different functions.
  • Each of these partition members is constructed as a separating or partition sieve.
  • the respective compartments or sections 85, 86, and 87 which are located between the lower closure 62 and the partition wall 80, between the partition walls 81 and 82, and between the partition wall 83 and the upper closure member 63, are filled with balls of various diameters 51, 52 and 53, respectively.
  • the shaft 61 carries the stirrer elements in the form of shovel blades in the compartment 88 bounded by the partition walls 80 and 81 as well as in the compartments or sections 85, 86 and 87.
  • this compartment 88 does not contain any grinding bodies.
  • the section or compartment 89 which is disposed between the partition walls 82 and 83, contains two stirring elements 90 and 91 in the form of substantially circular ring-shaped disks which are attached to the shaft 61. Also, no grinding bodies are located in this compartment 89. Suitable conduits or pipes 95 and 96, which can be closed by appropriate non-illustrated valves, communicate with the lower and the upper regions of the compartment 89, as shown.
  • the material to be ground is pumped into the lower section 64 through pipe 65, from where it is moved along a very complicated path to the partition member 80, by means of which it enters compartment 88.
  • this compartment or section 88 contains no grinding bodies, so that the material can follow unimpeded the rapid movements of the shovel blades and is thereby thoroughly kneaded and mixed. As experience has shown, the viscosity of the mass, especially when dealing with a chocolate mass, can be noticeably reduced in this manner.
  • the mass or material After passing compartment 88, the mass or material then enters the middle compartment or section 86 through partition member 81 where it is ground further in a similar fashion as in the lower grinding section 85, but with smaller grinding balls 54.
  • the mass then leaves the middle grinding section 86 through partition member 82 and enters compartment 89 which contains no grinding balls.
  • the conduit or pipe 95 introduces air continuously into this compartment 89 which mixes with the mass which is thoroughly agitated in this section or compartment by the stirring elements 90 and 91 shaped as disks.
  • the mass is thus completely aerated, which is again important when the stirrer-ball mill is used in the foodstuff industry.
  • the pipe 96 sucks off the air after it has been charged with undesired gaseous, easily evaporable ingredients which develop in the material or mass during its grinding and kneading.
  • the aerated mass then enters into the upper compartment or section 87 through partition member 83 where it is again ground fine with the aid of grinding balls 53.
  • the mass whose grinding is now completed, having passed through the upper grinding section 87 and departed through the partition member 63, is now withdrawn from the upper terminal or closure area 67 through pipe 68 in order to be treated further or to be immediately used
  • compartment 89 which has no grinding balls, some neutral, nonoxidizing gas, as for example nitrogen, instead of air. Instead of a gas, there may be also introduced any other treating medium or an additive.
  • some neutral, nonoxidizing gas as for example nitrogen
  • the described subdivision of the mill into three grinding compartments or sections 85, 86 and 87 and two sections or compartments 88 and 89 with no grinding bodies can be accommodated to the particular utilization of the mill, in that for example there may be provided only one compartment or section with no grinding balls or more than two such sections.
  • the first compartment or section 88 containing no grinding balls can be also equipped with conduits or pipes leading outside in order to introduce treatment media or additives.
  • stirrer-ball mill is not to be considered as limited to grinding of materials which are useful in the foodstuff industry, but it may be used equally Well for fine grinding of inorganic suspensions or solutions as, for instance dyestuffs or plastics in liquid form.
  • a stirrer ball mill for the continuous grinding of fluent granular materials comprising a plurality of grinding compartments through which said materials are fed in sequence, each of said grinding compartments having therein a plurality of freely movable grinding bodies, the grinding bodies within each one of said compartments having a size range different from the grinding bodies within any other of said grinding compartments, and at least one treatment compartment disposed between two of said grinding compartments and devoid of grinding bodies, said granular materials being further treated within said treatment compartment the grinding stages defined by said two grinding compartments.
  • a stirrer ball mill for the continuous size reduction of fluid granular materials comprising a substantially cylindrical grinding chamber having a vertical axis, rotatable shaft means coaxially disposed within said chamber and having secured thereto a plurality of radially extending stirrer elements, said chamber being divided by at least one horizontal partition means into a plurality of grinding compartments, said partition means having through flow openings therein for said materials, a plurality of freely movable grinding bodies within each of said grinding compartments, the grinding bodies within each one of said grinding compartments having a different size from those within the others of said compartments, and at least one treatment compartment devoid of grinding bodies disposed between two of said grinding compartments and having fluid inlet and outlet fluid conduit means communicating therewith, whereby a treatment fluid may be introduced within said treatment compartment and entrained within said granular materials.
  • said treatment compartment comprises two partition members at opposite ends thereof, each of said partition members having through flow openings therein respectively communicating with one of said two grinding compartments, and at least one stirrer element within said treatment compartment between said partition members for reducing the viscosity of the granular materials therein.
  • a stirrer ball mill for the continuous size reduction of fluent granular materials comprising a substantially cylindrical grinding chamber having a vertical axis, a generally coaxial rotatable shaft disposed within said chamber and having secured thereto a plurality of radially extending stirrer members, said grinding chamber being divided by at least one horizontal partition member into a plurality of grinding compartments.
  • said partition memher having through flow openings therein providing communication between said grinding compartments, a plurality of freely movable grinding bodies disposed within each of said grinding compartments, the grinding bodies within each one of said grinding compartments having a different size from those Within the others of said compartments, and at least one treatment compartment devoid of grinding bodies disposed between two of said grinding compartments and in communication therewith, said treatment compartment having therein means for reducing the viscosity of the fluent mass therein, and fluid inlet and discharge means for introducing a treatment fluid to said treatment compartment, whereby said treatment fluid may be entrained within said fluent material.
  • a stirrer ball mill for the size reduction of fluent granular materials comprising housing means providing a substantially cylindrical, vertically arranged grinding chamber therein, a rotatable shaft substantially coaxially disposed in said chamber, said rotatable shaft being provided with a plurality of substantially radially projecting stirrer elements, at least one substantially horizontally disposed partition member provided with through flow openings for subdividing said chamber into a plurality of separate grinding compartments, grinding bodies disposed within each of said grinding compartments, the grinding bodies of each grinding compartment possessing diflerent dimensions from the grinding bodies in any other grinding compartment, and at least one treatment compartment devoid of said grinding bodies and having means therein for the further treatment of said fluent material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Confectionery (AREA)
  • Crushing And Grinding (AREA)
US691646A 1966-12-23 1967-12-18 Stirrer-ball mill Expired - Lifetime US3533566A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1847566A CH459724A (de) 1966-12-23 1966-12-23 Rührwerk-Kugelmühle
CH1669567A CH473610A (de) 1966-12-23 1967-11-28 Rührwerk-Kugelmühle

Publications (1)

Publication Number Publication Date
US3533566A true US3533566A (en) 1970-10-13

Family

ID=25718369

Family Applications (1)

Application Number Title Priority Date Filing Date
US691646A Expired - Lifetime US3533566A (en) 1966-12-23 1967-12-18 Stirrer-ball mill

Country Status (7)

Country Link
US (1) US3533566A (enrdf_load_stackoverflow)
BE (1) BE708433A (enrdf_load_stackoverflow)
CH (1) CH473610A (enrdf_load_stackoverflow)
ES (1) ES349077A1 (enrdf_load_stackoverflow)
FR (1) FR1550610A (enrdf_load_stackoverflow)
GB (1) GB1189178A (enrdf_load_stackoverflow)
NL (1) NL6717396A (enrdf_load_stackoverflow)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206879A (en) * 1978-08-10 1980-06-10 Gebrueder Buehler Ag Agitator mill
US5114083A (en) * 1988-06-10 1992-05-19 Kubota, Ltd. Method and appatatus for pulverizing material
RU2149059C1 (ru) * 1998-08-24 2000-05-20 Хвостенков Сергей Иванович Помольно-смесительный агрегат
CN1330422C (zh) * 2005-06-30 2007-08-08 湖北大学 一种管磨机内控制物料流动的装置
CN1330423C (zh) * 2005-06-30 2007-08-08 武汉理工大学 一种防止管磨机内物料结团的装置
CN101716541B (zh) * 2009-12-25 2012-04-18 桂林宝利新技术开发有限公司 一种调节管磨机内物料流速的隔仓装置的分料斗
WO2017017315A1 (en) * 2015-07-28 2017-02-02 Outotec (Finland) Oy Improvements in grinding mills
CN106423426A (zh) * 2016-12-16 2017-02-22 北京神雾电力科技有限公司 一种高温物料磨粉机及其磨制方法
CN106902932A (zh) * 2017-04-05 2017-06-30 宜兴市宏才盛邦科技有限公司 一种可拆卸式碳酸钙粗粉碎装置
US10926269B2 (en) 2017-12-01 2021-02-23 Metso Minerals Industries, Inc. Vertical grinding mill, screw shaft, and method of designing and/or manufacturing a screw shaft
CN112791802A (zh) * 2020-12-31 2021-05-14 四川百诺吉科技有限公司 一种适用于培养基干粉生产的球磨机
CN113939367A (zh) * 2019-06-14 2022-01-14 古河机械金属株式会社 无机材料的制造方法及无机材料制造装置
CN114007722A (zh) * 2019-04-08 2022-02-01 热科控股有限公司 流化床反应器设备和使用流化床反应器设备处理有机材料的方法
US20220134347A1 (en) * 2020-01-15 2022-05-05 Xiamen Iso Standard Sand Co., Ltd. Grinding and shaping method using vertical grinding mill
CN115319888A (zh) * 2022-09-01 2022-11-11 吉林建筑大学 一种玄武岩纤维复合一体墙板的加工设备及方法
CN117339690A (zh) * 2023-10-31 2024-01-05 肇庆理士电源技术有限公司 一种用于干法电极粉的循环式球磨机
EP4438180A1 (de) * 2023-03-31 2024-10-02 Bühler AG Auflockerung von mahlkörpern in einer rührwerkskugelmühle

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2047244C3 (de) * 1970-09-25 1988-10-20 Gebrüder Netzsch, Maschinenfabrik GmbH & Co, 8672 Selb Rührwerksmühle zum kontinuierlichen Feinmahlen und Dispergieren fließfähigen Mahlgutes
FR2185744B2 (enrdf_load_stackoverflow) * 1972-05-24 1976-08-06 Sogreah
AT367657B (de) 1978-08-24 1982-07-26 Buehler Ag Geb Ruehrwerkskugelmuehle-regelung
FR2510908A1 (fr) * 1981-08-04 1983-02-11 Euro Machines Broyeur perfectionne pour le traitement en continu de phase humide en cuve close
AU1097583A (en) * 1983-02-03 1984-08-09 Union Process International Inc. Comminuting mill
JPS6053348U (ja) * 1983-09-17 1985-04-15 三菱重工業株式会社 塔型粉砕装置
JPH0683795B2 (ja) * 1986-03-18 1994-10-26 ホソカワミクロン株式会社 ボ−ルミル
JPH043630Y2 (enrdf_load_stackoverflow) * 1987-01-23 1992-02-04
RU2299874C1 (ru) * 2005-10-17 2007-05-27 Федеральное государственное унитарное предприятие "Научно-исследовательский институт полимерных материалов" Бисерный двухроторный измельчитель

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2578274A (en) * 1948-04-05 1951-12-11 Courtaulds Ltd Manufacture of viscose
US2779752A (en) * 1953-11-18 1957-01-29 Du Pont Apparatus for chemical reactions passing through viscous phase
US2943800A (en) * 1954-11-13 1960-07-05 Wultsch Ferdinand Highly effective device for wet-separation
US3233835A (en) * 1961-12-06 1966-02-08 Sevin Roger Joseph Apparatus for milling and dispersing substances in liquid media
US3311310A (en) * 1964-06-20 1967-03-28 Draiswerke Gmbh Stirring mill
US3337140A (en) * 1964-06-03 1967-08-22 Pittsburgh Plate Glass Co Dispersion process

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2578274A (en) * 1948-04-05 1951-12-11 Courtaulds Ltd Manufacture of viscose
US2779752A (en) * 1953-11-18 1957-01-29 Du Pont Apparatus for chemical reactions passing through viscous phase
US2943800A (en) * 1954-11-13 1960-07-05 Wultsch Ferdinand Highly effective device for wet-separation
US3233835A (en) * 1961-12-06 1966-02-08 Sevin Roger Joseph Apparatus for milling and dispersing substances in liquid media
US3337140A (en) * 1964-06-03 1967-08-22 Pittsburgh Plate Glass Co Dispersion process
US3311310A (en) * 1964-06-20 1967-03-28 Draiswerke Gmbh Stirring mill

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206879A (en) * 1978-08-10 1980-06-10 Gebrueder Buehler Ag Agitator mill
US5114083A (en) * 1988-06-10 1992-05-19 Kubota, Ltd. Method and appatatus for pulverizing material
RU2149059C1 (ru) * 1998-08-24 2000-05-20 Хвостенков Сергей Иванович Помольно-смесительный агрегат
CN1330422C (zh) * 2005-06-30 2007-08-08 湖北大学 一种管磨机内控制物料流动的装置
CN1330423C (zh) * 2005-06-30 2007-08-08 武汉理工大学 一种防止管磨机内物料结团的装置
CN101716541B (zh) * 2009-12-25 2012-04-18 桂林宝利新技术开发有限公司 一种调节管磨机内物料流速的隔仓装置的分料斗
WO2017017315A1 (en) * 2015-07-28 2017-02-02 Outotec (Finland) Oy Improvements in grinding mills
US11813616B2 (en) 2015-07-28 2023-11-14 Outotec (Finland) Oy Grinding mills
EA037779B1 (ru) * 2015-07-28 2021-05-20 Оутотек (Финлэнд) Ой Усовершенствования в мельницах
US11465154B2 (en) 2015-07-28 2022-10-11 Outotec (Finland) Oy Grinding mills
CN106423426A (zh) * 2016-12-16 2017-02-22 北京神雾电力科技有限公司 一种高温物料磨粉机及其磨制方法
CN106902932A (zh) * 2017-04-05 2017-06-30 宜兴市宏才盛邦科技有限公司 一种可拆卸式碳酸钙粗粉碎装置
US10926269B2 (en) 2017-12-01 2021-02-23 Metso Minerals Industries, Inc. Vertical grinding mill, screw shaft, and method of designing and/or manufacturing a screw shaft
CN114007722A (zh) * 2019-04-08 2022-02-01 热科控股有限公司 流化床反应器设备和使用流化床反应器设备处理有机材料的方法
CN113939367A (zh) * 2019-06-14 2022-01-14 古河机械金属株式会社 无机材料的制造方法及无机材料制造装置
US12168234B2 (en) 2019-06-14 2024-12-17 Furukawa Co., Ltd. Method of producing inorganic material and apparatus of producing inorganic material
US20220134347A1 (en) * 2020-01-15 2022-05-05 Xiamen Iso Standard Sand Co., Ltd. Grinding and shaping method using vertical grinding mill
US12233423B2 (en) * 2020-01-15 2025-02-25 Xiamen Iso Standard Sand Co., Ltd. Grinding and shaping method using vertical grinding mill
CN112791802A (zh) * 2020-12-31 2021-05-14 四川百诺吉科技有限公司 一种适用于培养基干粉生产的球磨机
CN115319888A (zh) * 2022-09-01 2022-11-11 吉林建筑大学 一种玄武岩纤维复合一体墙板的加工设备及方法
CN115319888B (zh) * 2022-09-01 2023-12-01 吉林建筑大学 一种玄武岩纤维复合一体墙板的加工设备及方法
EP4438180A1 (de) * 2023-03-31 2024-10-02 Bühler AG Auflockerung von mahlkörpern in einer rührwerkskugelmühle
WO2024199736A1 (en) * 2023-03-31 2024-10-03 Bühler AG Loosening of grinding bodies in an agitator bead mill
CN117339690A (zh) * 2023-10-31 2024-01-05 肇庆理士电源技术有限公司 一种用于干法电极粉的循环式球磨机
CN117339690B (zh) * 2023-10-31 2024-04-19 肇庆理士电源技术有限公司 一种用于干法电极粉的循环式球磨机

Also Published As

Publication number Publication date
NL6717396A (enrdf_load_stackoverflow) 1968-06-24
FR1550610A (enrdf_load_stackoverflow) 1968-12-20
ES349077A1 (es) 1969-08-16
GB1189178A (en) 1970-04-22
BE708433A (enrdf_load_stackoverflow) 1968-05-02
CH473610A (de) 1969-06-15

Similar Documents

Publication Publication Date Title
US3533566A (en) Stirrer-ball mill
KR102501892B1 (ko) 교반기 볼 밀
US3027102A (en) Apparatus for mixing and comminuting
DE4128074C2 (de) Rührwerkskugelmühle
US4231666A (en) Mixing apparatus
US3845938A (en) Apparatus for dispersing finely divided solid particles in a liquid vehicle
EP0500561B1 (de) Verfahren und vorrichtung zum mischen und thermischen behandeln von feststoffpartikeln
US20150283526A1 (en) Hybrid mixer
US3142589A (en) Vertical diffuser
US3628965A (en) Process and apparatus for producing chocolate
EP0335096B1 (de) Vorrichtung zum Mischen und Homogenisieren von fliessfähigen Produkten
US5934581A (en) Mill for the fine grinding of solid particles in general and, particularly, of solid particles dispersed in a continuous lipid phase
US6789935B2 (en) Method for vertical mixing and device for this
US2169339A (en) Mill for dispersion and mixing
US3610540A (en) Method and apparatus for treating granulized coffee
US2556486A (en) Sand treating apparatus
US2391858A (en) Streamcurrent apparatus for mixing materials
JPH09225279A (ja) 攪拌ディスク及びメディア攪拌型ミル
US1701164A (en) Mixing apparatus and process
US5741066A (en) Helical ribbon mixer
US3338559A (en) Apparatus for mixing particulate materials
JPH04247248A (ja) 液体内固体の連続的粉砕及び分散方法及び装置
US3321186A (en) Mixing machine for flowable and pulverulent, granular or fibrous materials
US2890869A (en) Mixing device
JPH0417348B2 (enrdf_load_stackoverflow)