EP0358790B1 - Système de broyage - Google Patents

Système de broyage Download PDF

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Publication number
EP0358790B1
EP0358790B1 EP88114990A EP88114990A EP0358790B1 EP 0358790 B1 EP0358790 B1 EP 0358790B1 EP 88114990 A EP88114990 A EP 88114990A EP 88114990 A EP88114990 A EP 88114990A EP 0358790 B1 EP0358790 B1 EP 0358790B1
Authority
EP
European Patent Office
Prior art keywords
grinding
shaft
grinding device
housing
shaft part
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
EP88114990A
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German (de)
English (en)
Other versions
EP0358790A1 (fr
Inventor
Lu Tsai-Chuan
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.)
Chung Yeh Machinery & Hardware Corp
Original Assignee
Chung Yeh Machinery & Hardware Corp
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
Application filed by Chung Yeh Machinery & Hardware Corp filed Critical Chung Yeh Machinery & Hardware Corp
Priority to DE8888114990T priority Critical patent/DE3873538D1/de
Priority to EP88114990A priority patent/EP0358790B1/fr
Priority to AT88114990T priority patent/ATE79054T1/de
Priority to ES198888114990T priority patent/ES2034080T3/es
Publication of EP0358790A1 publication Critical patent/EP0358790A1/fr
Application granted granted Critical
Publication of EP0358790B1 publication Critical patent/EP0358790B1/fr
Priority to GR920402468T priority patent/GR3006190T3/el
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/08—Mills with balls or rollers centrifugally forced against the inner surface of a ring, the balls or rollers of which are driven by a centrally arranged member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/16—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs with milling members essentially having different peripheral speeds and in the form of a hollow cylinder or cone and an internal roller or cone
    • 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
    • B02C17/166—Mills in which a fixed container houses stirring means tumbling the charge of the annular gap type

Definitions

  • the invention relates to a grinding device for the fine grinding of flowable material, in particular for producing color pigment dispersion, with a lying housing, from which the material is fed on one end by means of a conveying device and removed on the other, with a shaft which is concentrically arranged and driven in rotation and at least one in between Housing and shaft trained annular channel provided, driven by the shaft and interacting with the housing inner wall or the shaft grinding roller and in which a shaft part corresponding to the rollers is conical, the shaft is axially displaceable relative to the housing and the thrust required for the displacement a shaft part is exerted, which opens axially into the conical shaft part that corresponds to the rollers and the rollers are arranged in a rolling manner at least in regions on a conical surface of the shaft part, and the K onische shaft part is displaceable relative to the rollers.
  • Such grinding devices are used to produce a homogeneous and uniform dispersion from various paints, oils, resins, pigments, additives and other components, which as a raw product consists of a relatively viscous and non-uniform suspension with relatively large solid particles.
  • this device also contemplates arranging two rollers symmetrically with respect to a longitudinal axis of the shaft and thereby preventing rotational imbalance.
  • the roller is guided loosely in the recess and is at a distance from both a bottom of the recess facing the longitudinal axis of the shaft and from the inner wall of the housing. Only when the shaft rotates is the roller pressed against the inner wall of the housing by the centrifugal force and rolls on it.
  • the grinding pressure can therefore only be adjusted via the speed of the shaft.
  • the material to be ground is shredded only in the contact area of the roller with the inner wall of the housing. Because of the space formed between the roller and the shaft when the shaft rotates, the material to be ground cannot be comminuted in this area. In addition, it is to be expected that material or substance to be ground will penetrate into this intermediate space and lead to contamination. Finally, it cannot be avoided that buildup on the roller takes place, which influence the weight or the weight distribution of the roller and thus change the grinding force, which is dependent both on the speed of the shaft and on the mass of the roller. However, it is essential for carrying out a high quality grinding process necessary to ensure largely defined grinding conditions during the entire grinding process.
  • a prerequisite for such uniform conditions is, however, that there is a defined distance between the shaft and the roller on the one hand and the roller and the inner wall of the housing on the other and the grinding pressure resulting from the mutual action of these components can be adapted to different substances to be ground.
  • the pigment mill according to GB-A 291 952 it is not possible to make a defined setting of the grinding pressure. Rather, this is essentially determined by the speed of the shaft and the mass of the rollers.
  • this device In a small stroke range, it is possible with this device to make an axial adjustment of the shaft by adjusting a wheel provided with an external thread, which is guided in an internal thread provided in the area of the housing, but with this adjustment the shaft is operated together with the Rollers shifted so that there is no influence on the grinding pressure.
  • This adjustment option is also not intended to influence the grinding pressure, but rather essentially to enable positioning of a ball bearing guiding the shaft.
  • a device comparable to the generic grinding device is also known from DE-A-21 38 025.
  • a particular disadvantage was that the grinding pressure cannot be adjusted. Hard floating particles in the raw product therefore remain in the spaces between two successive rollers and run around the shaft with the rollers. The result is not only a poor grinding effect, but also damage to the surface of the shaft and the inner wall of the housing. If the shaft of this grinding device is driven at a very high speed, the rollers on the inner wall of the housing can only slide and not roll, which is why the grinding effect is also worse.
  • the instantaneous grinding surface after the arrangement of the rollers is relatively small, and accordingly the grinding capacity, as a result of which the time and power consumption of the grinding device are relatively high.
  • the non-adjustability of the gap width between the rollers, the shaft and the inner wall of the housing limits the degree of fineness of the ground product and the number of types of substances to be ground.
  • Very hard and large floating particles can stop the shaft when the motor is tightened and subject the shaft to elastic deformation if the hard floating particles get stuck in the gap between the rollers and the inner wall of the housing. If the grinding device has already been supplied with hard and large floating particles and these have not yet been removed elsewhere, the shaft and the roller are easily deformed and therefore forced to stop because the shaft is relatively long and the hard floating particles in the gaps between the rollers and can get stuck inside the housing.
  • either the housing halves or the housing and a cover are axially displaceable relative to one another, a pressure bearing being provided, for example, between the cover and the adjacent cage of the rollers to reduce the frictional resistance.
  • This known grinding device is therefore relatively complicated and therefore expensive. It requires additional devices that are difficult to handle in order to be able to adjust the gap width by moving the parts relative to one another.
  • the object of the present invention is therefore to improve the grinding device of the type mentioned at the outset in such a way that a high-quality grinding process can be carried out and thermal impairments are avoided.
  • rollers are conical
  • the grinding chamber has a conical configuration and the conical shaft part and the housing in the region of its expansion surrounding the conical shaft part have cooling channels for guiding a cooling medium which dissipates grinding heat.
  • the shaft of the grinding device is hollow and a coolant circulates through the cavity.
  • a grinding device 10 consists essentially of the substructure 11 with a motor, hydraulic device etc., the bearing stand 12, the grinding unit 13, the feed pump 14, the grinding product inlet 15 and the grinding product outlet 16, the coolant inlet 17 and the coolant outlet 18 for the external cooling system and the Coolant inlet 19 and the coolant outlet 20 for the internal cooling system.
  • a bearing stand 12 stands on the substructure 11.
  • a shaft 27 runs through the bearing stand 12 and is supported by two roller bearings 28, 29.
  • a grinding element 42 is located at the left end of the shaft 27.
  • a pulley 26 is attached to the right side of the shaft 27.
  • a motor 22 is installed in the substructure 11, the axis of rotation 23 of which is provided with a pulley 24. On this pulley 24 and the pulley 26 of the shaft 27 some belts 25 are stretched. The driving force of the motor 22 is transmitted through the pulley 24, the belts 25 and the pulley 26 on the shaft 27 to drive the shaft 27.
  • the storage stand 12 there is a cooling jacket 30 which is placed around the bearings 28, 29. With the help of the coolant coming through the coolant inlet 31, the high heat that is generated by the rotation in the two roller bearings 28, 29 is cooled. In order to avoid transfer of the high heat to the left grinding unit 13, the coolant can be removed through the coolant outlet 32 at the bottom of the jacket 30. If you want to increase the cooling effect, you can let the coolant flow continuously.
  • An oil feed 40 is seated on the bearing stand 12, into which lubricating oil is filled in order to lubricate the roller bearings 28, 29.
  • a spacer sleeve 33 is located on the left side of the bearing stand 12.
  • a grinding unit 13 is located to the left of the spacer sleeve 33.
  • a spacer chamber 34 is provided in the spacer sleeve 33, through which the roller bearing 29 is separated from the grinding unit 13.
  • a Set of oil seal 38 and clamping ring 39 installed to seal the gap between the cover 35 and the shaft 27 so that the lubricating oil that has penetrated into the spacing chamber 34 cannot penetrate into the grinding unit 13. In this way, a double separation is carried out between the roller bearing 29 and the grinding unit 13 and the ground product in the grinding unit 13 is effectively protected against contamination. If the oil seal 36 on the right of the spacing chamber 34 fails, the lubricating oil that has entered the spacing chamber 34 can run out through the oil drain 41 at the bottom of the spacing chamber 34 without difficulty. It does not remain in the spacing chamber 34. Therefore, the lubricating oil that has penetrated cannot reach the height of the oil seal 38.
  • the oil seal 38 also has the same separation function.
  • the grinding unit 13 is provided with a right cover 35 which is attached to the left side of the right spacer sleeve 33.
  • the 1st grinding element 42 is attached to the left side of the right cover 35, the left cover 43 to the left side of the 1st grinding element 42.
  • the right cover 35, the 1st grinding element 42 and the left cover 43 together form a uniform grinding space (42a).
  • the second grinding element 44 is fastened to the left side of the shaft 27 and inserted into the grinding chamber (42a) described above.
  • Some 3rd grinding elements 52 are located in the grinding chamber between the 1st grinding element 42 and the 2nd grinding element 44.
  • the 1st milling element 42 has an inner wall of the 1st inner truncated cone 46.
  • This inner taper wall 46 has the 1st geometric center 47, i.e. the central axis of the inner truncated cone 46, the first virtual inner cone tip 48 and the first inner cone angle.
  • the second grinding element 44 has an outer wall 49 of the second outer truncated cone.
  • This outer wall 49 has the 2nd geometric Center 50, the central axis of the outer cone, the second virtual outer cone tip 51 and the second outer cone angle.
  • the 2nd geometric center 50 of the 2nd grinding element 44 mentioned and the 1st geometric center 47 of the 1st grinding element 42 mentioned coincide approximately, that is to say the 1st grinding element 42 and the 2nd grinding element 44 have the same center.
  • the 2nd virtual cone tip 51 of the 2nd grinding element 44 and the 1st virtual cone tip 48 of the 1st grinding element 42 coincide approximately.
  • the 3rd grinding elements 52 are located in the grinding chamber between the 1st grinding element 42 and the 2nd grinding element 44.
  • the 3rd virtual outer cone tips 55 of the 3rd grinding elements 52 and the 1st virtual inner cone tip 48 of the 1st grinding element 42 and the 2nd virtual one Outer cone tip 51 of the second grinding element 44 coincide approximately. Therefore, the second grinding element 44 is located between the two other elements 42, 52 and comes into contact with them.
  • the grinding product inlet 15, which is connected to the grinding chamber, is located at the top left of the grinding unit 13. At the bottom right of the grinding unit 13 is the grinding product outlet 16, which is also connected to the grinding chamber in order to discharge the finished grinding product.
  • the 3rd geometric centers 54 of the 3rd grinding elements 52 rotate about the 1st geometric center 47 and at the same time the 3rd grinding elements 52 also rotate about their 3rd geometric centers 54.
  • the 3rd geometric centers 54 of the 3rd grinding elements 52 do not move, but the 3rd grinding elements 52 can rotate freely about their 3rd geometric centers 54, then the 1st grinding element 42 and the 2nd grinding element 44 will turn around them own geometric centers, that is, rotate around the first geometric center 47 and the second geometric center 50.
  • the components can rotate against each other due to mutual friction.
  • a positive drive with gears can also be used to prevent sliding between the three grinding elements. If you set different suitable gear ratios, the linear speeds at the points of contact of the three grinding elements are different. Then the sliding friction can also be used for grinding.
  • a practical example relates to the fact that the second grinding element 44 rotates, but the first grinding element 42 remains motionless. To explain this, it is not the positive drive with gears that is used, but the rolling friction.
  • the shaft 27 rotates and with it the second grinding element 44.
  • the first grinding element 42 does not run, therefore the third grinding elements 52 become between the second grinding element 44 and the third grinding elements with the aid of the frictional force 52 and rotated about the 1st geometric center by the frictional action between the 2nd grinding element 44 and the 1st grinding element 42.
  • the third grinding elements 52 also rotate themselves around their own 3rd geometric centers 54.
  • the grinding product that has entered the grinding chamber is broken by rolling and ground by the friction of two adjacent 3rd grinding elements 52.
  • the grinding surface is large and the grinding force can be adjusted to the second grinding element 44 in accordance with the axial thrust. The harder the ground product, the more the thrust can be increased For softer ground products the thrust is reduced. Therefore, the grinding performance is good.
  • the grinding pressure control 56 includes the following parts: a thrust plate 58, which is screwed onto the shaft 27 with a thread 57 and is screwed by a screw 59 to the right side of the pulley 26, and a thrust sleeve 60, which the shaft 27 envelops. Its left end presses the right side of the plate 58. In between there is a bearing 61.
  • a support device 62 stands on the substructure 11. In this support device 62 there is a cylinder in which a piston 64 and a spring 63 are located. The piston is attached to the thrust sleeve 60.
  • a hydraulic line 66 leads the hydraulic oil from the hydraulic control 67 in the substructure 11 into the cylinder 63 in order to drive the piston 64 so that the thrust sleeve 60 can exert pressure on the pulley 2. Then the shaft 27 is pushed by the thrust plate 58 by the screw 57 and the second grinding element 44 at the left end of the shaft 27 is pressed to the left. The strength of the pressure depends on the pressure in the cylinder 63 on the right side. If no more pressure is exerted, the thrust effect is canceled by the counter spring 65.
  • a bearing 68 which is sealed with a cover 69.
  • the second grinding element 44 In order to be able to cool the second grinding element 44, it is made hollow.
  • the entire shaft 27 is hollow.
  • the coolant can pass from the coolant inlet 19 through the inner opening 70 of the shaft 27 to the inner opening 71 of the second grinding element 44, then flow out of the coolant outlet 20. Then it runs continuously in a circle. The heat generated during grinding is thus dissipated.
  • the first grinding element 42 is provided from the outside with a spiral cooling channel 72.
  • the coolant can flow through the coolant inlet 17 run into the cooling channel 72 and run out of the coolant outlet 18. It is again a cycle. The heat generated during grinding is thus dissipated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (23)

  1. Dispositif de broyage pour le broyage fin d'une matière coulante, en particulier pour la production de pigments colorés en dispersion, comportant un châssis horizontal auquel la matière est envoyée à une extrémité, au moyen d'un dispositif de convoyage, et prélevée à l'autre extrémité, comportant un arbre (27) entraîné en rotation, disposé concentriquement dans le châssis et comportant au moins un cylindre de broyage prévu dans le canal annulaire, formé entre le châssis et l'arbre (27), entraîné par l'arbre (27) et coopérant avec la paroi intérieure du châssis ou avec l'arbre (27) et dans lequel une partie d'arbre correspondant aux cylindres a une forme conique, l'arbre (27) est déplaçable axialement par rapport au châssis et la poussée, nécessaire au déplacement, est exercée par une partie d'arbre (27a) qui débouche axialement dans la partie d'arbre (44), de forme conique, correspondant aux cylindres et les cylindres (52) sont disposés de manière à tourner au moins en partie sur une surface conique de la partie d'arbre (44) et la partie d'arbre (44) est déplaçable par rapport aux cylindres (52), caractérisé en ce que les cylindres (52) sont coniques, l'enceinte de broyage (42a) présente une configuration conique et la partie d'arbre (44) conique ainsi que le châssis comportent, dans la région de leur extension entourant la partie d'arbre conique (44), des canaux de refroidissement destinés à guider un fluide de refroidissement évacuant la chaleur de broyage.
  2. Dispositif de broyage selon la revendication 1, caractérisé en ce que la partie d'arbre (27a) a une section transversale circulaire.
  3. Dispositif de broyage selon la revendication 2, caractérisé en ce que la partie d'arbre (27a) s'étend à travers un palier-support (12) vers l'enceinte de broyage (42a).
  4. Dispositif de broyage selon la revendication 3, caractérisé en ce qu'une plaque de poussée (58) est vissée sur la partie d'arbre (27a).
  5. Dispositif de broyage selon la revendication 4, caractérisé en ce que la plaque de poussée (58) est vissée, par une tige filetée (57), sur la partie d'arbre (27a).
  6. Dispositif de broyage selon la revendication 5, caractérisé en ce que la plaque de poussée (58) est vissée sur le côté, opposé à l'unité de broyage (13), de la poulie (26).
  7. Dispositif de broyage selon la revendication 6, caractérisé en ce qu'une pression peut être exercée par une gaine de poussée (60) sur la plaque de poussée (58) et donc sur la poulie (26).
  8. Dispositif de broyage selon la revendication 7, caractérisé en ce que la gaine de poussée (60) a la forme d'un cylindre creux et entoure l'arbre (27).
  9. Dispositif de broyage selon la revendication 8, caractérisé en ce que l'extrémité, opposée à la plaque de poussée (58), de la gaine de poussée (60), est en forme de crochet, le crochet (60a) partant à peu près à angle droit du cylindre creux.
  10. Dispositif de broyage selon la revendication 9, caractérisé en ce qu'un palier (61) est placé entre le crochet (60a) et la plaque de poussée (58).
  11. Dispositif de broyage selon la revendication 10, caractérisé en ce qu'un piston (64) est fixé sur la gaine de poussée (60).
  12. Dispositif de broyage selon la revendication 11, caractérisé en ce que la pression exercée par la gaine de poussée (60) sur la plaque de poussée (58) est commandée hydrauliquement.
  13. Dispositif de broyage selon la revendication 12, caractérisé en ce que l'arbre (27) est creux.
  14. Dispositif de broyage selon la revendication 13, caractérisé en ce qu'un fluide de refroidissement s'écoule à travers la cavité, dans l'arbre (27).
  15. Dispositif de broyage selon la revendication 14, caractérisé en ce que l'arbre (27) est porté par deux paliers à rouleaux (28, 29).
  16. Dispositif de broyage selon la revendication 15, caractérisé en ce que les paliers à rouleaux (28, 29) sont lubrifiés à l'aide d'une arrivée d'huile (40) qui est placée sur le palier-support (12).
  17. Dispositif de broyage selon la revendication 16, caractérisé en ce que sur le côté, tourné vers l'unité de broyage (13), du palier-support (12), est placée une douille entretoise (33) à laquelle se raccorde l'unité de broyage (13).
  18. Dispositif de broyage selon la revendication 17, caractérisé en ce qu'il est prévu dans la douille entretoise (33), une chambre intermédiaire(34) qui se situe entre le palier à rouleaux (29) et l'unité de broyage (13).
  19. Dispositif de broyage selon la revendication 18, caractérisé en ce qu'il est prévu un organe d'étanchéité à l'huile (36) et une bague de serrage (37) entre la chambre intermédiaire(34) et le palier à rouleaux (29).
  20. Dispositif de broyage selon la revendication 19, caractérisé en ce qu'il est prévu, entre la chambre intermédiaire (34), le couvercle (35) et l'arbre (27), un organe d'étanchéité à l'huile (38) et une bague de serrage (39).
  21. Dispositif de broyage selon la revendication 20, caractérisé en ce qu'il est installé dans le socle (11), un moteur (22) dont l'axe de rotation (23) est doté d'une poulie (24) et en ce que sur cette poulie (24) et sur la poulie (26) sont tendues plusieurs courroies (25).
  22. Dispositif de broyage selon la revendication 21, caractérisé en ce que l'enveloppe du châssis de l'enceinte de broyage (42a) est entourée sur sa face extérieure d'un canal de refroidissement (72) en spirale.
  23. Dispositif de broyage selon la revendication 22, caractérisé en ce que le canal de refroidissement (72) est pourvu d'une entrée de fluide de refroidissement (17) et d'une évacuation de fluide de refroidissement (18).
EP88114990A 1988-09-14 1988-09-14 Système de broyage Expired - Lifetime EP0358790B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE8888114990T DE3873538D1 (de) 1988-09-14 1988-09-14 Mahlvorrichtung.
EP88114990A EP0358790B1 (fr) 1988-09-14 1988-09-14 Système de broyage
AT88114990T ATE79054T1 (de) 1988-09-14 1988-09-14 Mahlvorrichtung.
ES198888114990T ES2034080T3 (es) 1988-09-14 1988-09-14 Dispositivo triturador.
GR920402468T GR3006190T3 (fr) 1988-09-14 1992-11-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88114990A EP0358790B1 (fr) 1988-09-14 1988-09-14 Système de broyage

Publications (2)

Publication Number Publication Date
EP0358790A1 EP0358790A1 (fr) 1990-03-21
EP0358790B1 true EP0358790B1 (fr) 1992-08-05

Family

ID=8199305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114990A Expired - Lifetime EP0358790B1 (fr) 1988-09-14 1988-09-14 Système de broyage

Country Status (5)

Country Link
EP (1) EP0358790B1 (fr)
AT (1) ATE79054T1 (fr)
DE (1) DE3873538D1 (fr)
ES (1) ES2034080T3 (fr)
GR (1) GR3006190T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102935397A (zh) * 2012-10-31 2013-02-20 无锡科技职业学院 一种双旋转锥筒型卧式砂磨机
RU2480287C1 (ru) * 2011-09-01 2013-04-27 Федеральное государственное образовательное учреждение высшего профессионального образования "Красноярский государственный аграрный университет" Центробежная мельница

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CN102784696B (zh) * 2011-05-18 2014-06-18 谢小飞 一种反向锥形双涡轮棒销介质搅拌磨
CN103357489B (zh) * 2012-03-26 2015-05-20 谢小飞 一种用于介质搅拌磨的离心式无隔网料珠分离器
CN110252451A (zh) * 2019-06-24 2019-09-20 山东天厚新材料科技有限公司 一种纳米材料生产研磨装置
CN110170358A (zh) * 2019-06-27 2019-08-27 曾天杰 一种超微细片状纳米研磨机
CN115212976B (zh) * 2022-08-08 2024-06-07 洛阳豪特现代测试技术有限公司 一种软金属球体的研磨整形装置及方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB291952A (en) * 1927-06-07 1928-06-14 Joseph Herbert James Wood Improvements in or relating to machinery for grinding, mixing and like operations
DE3733565A1 (de) * 1987-02-06 1988-08-18 Escher Wyss Gmbh Verfahren zum betriebsmaessigen fibrillieren von papierstoffasern und eine vorrichtung zur ausfuehrung des verfahrens

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2480287C1 (ru) * 2011-09-01 2013-04-27 Федеральное государственное образовательное учреждение высшего профессионального образования "Красноярский государственный аграрный университет" Центробежная мельница
CN102935397A (zh) * 2012-10-31 2013-02-20 无锡科技职业学院 一种双旋转锥筒型卧式砂磨机
CN102935397B (zh) * 2012-10-31 2015-01-07 无锡科技职业学院 一种双旋转锥筒型卧式砂磨机

Also Published As

Publication number Publication date
EP0358790A1 (fr) 1990-03-21
ATE79054T1 (de) 1992-08-15
DE3873538D1 (de) 1992-09-10
GR3006190T3 (fr) 1993-06-21
ES2034080T3 (es) 1993-04-01

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