EP2762233A1 - Procédé et dispositif de broyage de minerai - Google Patents

Procédé et dispositif de broyage de minerai Download PDF

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Publication number
EP2762233A1
EP2762233A1 EP14162984.0A EP14162984A EP2762233A1 EP 2762233 A1 EP2762233 A1 EP 2762233A1 EP 14162984 A EP14162984 A EP 14162984A EP 2762233 A1 EP2762233 A1 EP 2762233A1
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EP
European Patent Office
Prior art keywords
ore
elements
crushing
rotation
pulverized
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EP14162984.0A
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German (de)
English (en)
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EP2762233B1 (fr
Inventor
Parviz Gharagozlu
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/0012—Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/22—Disintegrating by mills having rotary beater elements ; Hammer mills with intermeshing pins ; Pin Disk Mills

Definitions

  • the present invention relates to a method and a device for comminuting ore material or rock and / or slag in particular, wherein the ore is pulverized using water in the wet process or even without the use of water in a dry process in a particularly ecological manner.
  • the grinding cylinder In such known ball mills, however, the grinding cylinder must be designed to be particularly robust in order to be able to withstand the impact of the balls on the cylinder wall without damage, as a result of which the weight of the grinding cylinders increases greatly. As a result, the operating costs and energy consumption of such ball mills are high. Furthermore, there is a high wear of the rotating grinding cylinder due to the impact of the balls on the grinding cylinder, so that after a relatively short time, both the balls and the grinding cylinder must be replaced. Moreover, it is necessary with ball mills, that the ore is ground by a separate crusher and then by one or more ball mills connected in series, in order to crush the ore in a desired manner, wherein an effective pulverization of the ore material is hardly possible.
  • ball mills are not suitable for crushing or pulverizing ore material together with slag or slag, since slag, which arises in particular during the further processing of ore as a waste product, is very brittle and has a hard structure.
  • the invention is based on the idea of providing a method and a device for comminuting ore material, wherein the device according to the invention comprises an ore feed device for feeding ore to be comminuted to a pulverizer.
  • the Pulverisier founded is at least composed of two mutually movable crushing elements, which together form at least one crushing space for the ore to be crushed that is pulverized by a relative movement in the form of a rotation of at least one of the two crushing the ore to be crushed by at least one one or more acceleration elements, in particular projections, are provided in the comminution elements, which are arranged in particular on the front side of one of the two comminuting elements and which accelerate and thereby comminute the ore to be comminuted by the rotation of one of the two comminuting elements, at least one of the comminuting elements having a Having rising circular ramp area as part of the crushing space through which the ore to be crushed and / or in particular slag is accelerated and
  • the ore is pulverized on the one hand by the direct action of one of the two comminution elements and on the other hand the ore material Advantageously pulverized by the fact that in the crushing space ore material with different direction of movement and different speed of movement due to the rotation of the accelerating elements, wherein the projections or recesses of the accelerating elements, in particular by the oblique relative to the end face angle range the ore to be crushed away from the angular range in the direction of the other Crushing element or accelerated towards the crushing space, so that a coincidence of this different accelerated ore material for a pulverization by a so-called micro-impact of ore material provides.
  • the result is an acceleration of the ore to be comminuted in a particularly simple manner due to the rotation or the different relative speeds of the two comminuting elements.
  • the two crushing elements may rotate in opposite directions, or one crushing element is fixed, and the other crushing element rotates to achieve relative movement between the two crushing elements.
  • the acceleration elements or the projections act on the ore to be comminuted such that ore to be crushed is moved away from the acceleration elements or projections or recesses with an oblique angle range such that a portion of the ore to be comminuted by the Protrusions in the direction of the other crushing element or in the direction of the crushing space is accelerated and meet there with other parts of the ore to be crushed to form a micro-impulse, since the different accelerated parts of the ore in the crushing space between the two crushing elements to form a micro-impulse meet and so
  • the micro-impact between differently accelerated parts of the ore provides for a particularly advantageous pulverization.
  • the ore to be comminuted is accelerated by the acceleration elements in that they have an oblique region or angle region in the form of projections or recesses which, due to the rotation of the comminuting element, have a defined angle between the end surface of the comminuting element and due to the rotation of the comminuting element forms a rotating acceleration element, thereby characterized in the crushing chamber a particularly advantageous micro-impact between the ore accelerated by the accelerating elements and an ore with another relative speed or a another acceleration direction to form a micro-impulse and thereby ensures a particularly advantageous pulverization in the crushing space.
  • the pulverized ore After pulverization in the crushing space between the two crushing elements, the pulverized ore is conveyed from the center of outward rotation, in particular due to the centrifugal force and gravitational force, into a space provided between the two crushing elements and / or at least one of the two crushing elements.
  • the pulverized ore passes from the intermediate space to an outlet device, in which case it is collected by means of the outlet device, for example due to gravity, or is sucked off through the outlet device in order to discharge the pulverized ore from the device according to the invention.
  • the ore Due to the collision of the ore to be comminuted with the accelerating elements and the further micro-impact between the differently accelerated ore in the crushing space, the ore is pulverized in a particularly effective manner, in contrast to known devices, the pulverization in a short time and in a crushing chamber with low Dimensioning takes place, which means that the device according to the invention has only small dimensions in its dimensions. As a result, the dimensions and in particular the wall thicknesses of the rotating and possibly also fixed crushing elements are low, and accordingly only a small amount of wear occurs and a high degree of efficiency is achieved.
  • Another significant advantage of the device according to the invention and the The inventive method is that a pre-crushing of the ore obtained from mining is not required and thus the device according to the invention not only the known ball mills, but also corresponding devices for pre-crushing ore material replaced, which may be constructed in particular from two mutually rotating rollers.
  • the device according to the invention and the method according to the invention make it possible to comminute and pulverize slag per se or together with ore material, since due to the small dimensioning of the comminuting space and the relatively small sized comminution elements with a corresponding rotation of high forces on the crushing ore material or act on the slag to be crushed and thereby effective pulverization takes place. Due to the rotation, which due to the dimensions 100 to about 2000 revolutions per minute of a crushing element can also be effectively powdered slag, which is very brittle and has a hard structure.
  • the acceleration elements which are attached to both the one comminution element and the other comminution element, provide a particularly effective micro-impact due to their different relative speeds, in particular if the acceleration elements of the one and the other comminution element are aligned with each other such that the ore elements to be comminuted in each case be accelerated by the accelerating elements of the one and the other crushing element substantially in opposite directions, thereby the collision of these oppositely accelerated ore elements particularly positive effects and leads to a rapid and effective pulverization of the ore material.
  • the two crushing elements are constructed by a fixed fixed element and a rotating rotary member, wherein the solid element has substantially in its center a feed opening for supplying the ore to be crushed, and wherein the two crushing elements in a Housing are housed, which comprises the outlet device, in particular in the form of an outlet opening.
  • the rotary member is at least relative to the fixed element by means of a motor set in rotation, wherein between the fixed element and the rotary member of the crushing space is formed by corresponding recesses acting as acceleration elements in at least the rotary member and Are provided or the solid element, so that the ore is pulverized by the relative movement between the fixed element and the rotary member.
  • the recesses in the front of the crushing elements are a particularly simple design to accelerate the ore to be crushed.
  • the recesses can also form corresponding projections, wherein in particular both in the recesses and in the projections, an angular range is particularly advantageous, which is formed between the outer face of the crushing elements and the recesses, since this angular range can be made obliquely such that the Rotation of the crushing element provides for an effective power transmission to the ore to be accelerated.
  • the comminuting space between the fixed element and the rotary element is designed to taper outwards in a substantially conically tapering manner from the axis of rotation of the rotary element.
  • the rotation of the rotary member by a gear or an adjustable belt drive is variable, so that the engine can be driven in each case with optimized operating parameters.
  • the rotary element has a ramp region with increasing pitch as part of the comminution space through which the ore and / or in particular slag to be comminuted is accelerated and comminuted, then in addition to the protrusions or recesses, an advantageous comminution of ore and / or slag can be achieved be done with the rotation of the rotary member different cross section of the ramp area. It is particularly advantageous if the ramp region is provided in the transport direction of the ore material and / or the slag after the feed opening of the fixed element and before the projections and / or recesses of the two comminution elements in order to pre-comminute before pulverization to provide by the projections and / or recesses.
  • the intermediate space between the two comminuting elements is adjustable in the axial direction of rotation by a variable distance between the two comminution elements, wherein the interspacing comprises in particular star-shaped Auslass incisions in the rotary element or the fixed element leading away from the axis of rotation of the rotary element.
  • the variable adjustment of the distance between the two crushing elements the pulverization and thus the average grain size of the pulverized ore material can be varied. That is, with a larger distance between the two crushing elements, the pulverized ore has a larger average grain size, and with a smaller distance between the two crushing elements, the average grain size of the pulverized ore is smaller.
  • the final result of the pulverization by the operating personnel can be predetermined as desired.
  • a ramp area is likewise provided on the fixed element, which cooperates with the ramp area of the rotary element such that the ore to be comminuted is accelerated and crushed by the gradients of both ramp areas.
  • these ramp areas in the form of a worm can extend over a radial region on the end face of the two comminuting elements, so that together they provide for a reduction in the size of the ore immediately after feeding the ore to be comminuted and accelerate it.
  • water is supplied into the crushing space through a water inlet and is transported away by the outlet device together with the pulverized ore.
  • the use of water to pulverize the ore may favor the pulverization process, with the supply of water not necessarily required.
  • the supply of water reduces the formation of dust, which can have significant health consequences for the operating personnel.
  • the pulverizer has a water inlet into the crushing chamber, through which water is supplied to the ore to be crushed according to a predetermined amount.
  • the addition of water to the device according to the invention makes it possible to prevent the formation of dust in the process of obtaining pulverized ore.
  • FIG. 1 the device according to the invention is shown, wherein the ore to be crushed or the slag to be crushed is introduced into a hopper or feed hopper 1, which represents the ore feed device.
  • a screw conveyor may also be provided, which feeds the ore to be comminuted under pressure into the pulverization device.
  • the ore is fed through the hopper 1 to the cylinder-like housing 3, which is mounted on a foot 2 and a foot 6.
  • the pulverization of the ore to be crushed takes place.
  • a motor 8 via a drive roller 11 and a belt 10 and a pulley 9 for the transmission of torque from the motor 8 to the Pulvermaschines heard.
  • a suction opening 4 is optionally possible, through which the pulverized ore can be sucked by means of a negative pressure.
  • an outlet funnel 14 is provided in the lower region of the housing 3, which generally forms the outlet device. Through this discharge funnel 14, the pulverized ore is discharged by means of gravity or by suction from the device according to the invention.
  • a control flap 15 may be provided on the housing 3 to provide access to the interior of the housing if necessary. However, this is not necessary for the function of the device according to the invention. As in particular from FIG. 3 to is removed, the control flap 15 as well as the feed hopper 1 in the upper region of the device according to the invention is arranged. Further, the ore may be fed through the feed hopper in a continuous manner to the pulverizer or may be fed non-continuously to the pulverizer if sporadic ore or slag is only sporadically fed to the apparatus of the present invention.
  • FIGS. 4 5 respectively show a side view of the device according to the invention, from which it can be seen that the outlet funnel 14 is provided in the lower region of the cylindrical housing 3.
  • the pulley 9, as already described, is driven by the motor 8 and transmits this torque via a shaft 21 to a comminution element 30 which rotates thereby.
  • the comminuting element 30 is constructed in the simplest form as a rotating rotary element 30 with a disk-shaped configuration, which together with a fixed fixed element 40 forms the pulverization device. How out FIG. 6 can be seen, the ore to be crushed through the inlet hopper 1 is thereby fed into the housing 3, that a feed opening 41 is provided substantially in the center of the fixed element.
  • the ore material supplied through the supply port 41 is then pulverized between the fixed member 40 and the rotating rotary member 30 and discharged and pulverized in a pulverized form radially outward between the two crushing members 30, 40 and collected within the casing 3 in pulverized form, and then from the Outlet funnel 14 discharged.
  • the pulverization is especially with regard to FIG. 7 explained in more detail.
  • Analogous to FIG. 6 the ore to be comminuted is fed via the feed opening 41, which is located substantially in the center of the fixed element 40, into a comminuting space between the fixed element 40 and the rotary element 30.
  • FIG. 7 By way of example, individual ore lumps 50 are shown, which show the ore to be comminuted.
  • the rotation of the rotary member 30 causes the nuggets 50 to be accelerated radially outward and in the rotational direction of the rotary member 30.
  • the two crushing elements form a crushing space, wherein one or more acceleration elements are arranged on at least the rotary member or the fixed element in order for an acceleration and a corresponding comminution of the supplied ore.
  • one or more acceleration elements are arranged on at least the rotary member or the fixed element in order for an acceleration and a corresponding comminution of the supplied ore.
  • This type of pulverization takes only a short time due to the small space requirement of the crushing space, with the powdered ore being transported outward through a gap 60 between the two crushing elements during rotation of the rotating element and away from both crushing elements, such as powdered ore 55 by way of example in FIG. 7 is shown.
  • This means that the ore lumps are pulverized by a relative movement in the form of a rotation between the two comminution elements, wherein according to a further embodiment, two comminution elements with different rotational speeds and the same or opposite direction of rotation can be used.
  • FIG. 8 shows the two crushing elements of FIG. 7 in the unfolded state along with exemplarily arranged to be comminuted ore 50 and pulverized ore 55.
  • the ore to be comminuted 50 is fed via the feed opening 41 through the fixed element 40 in the crushing space between the two crushing elements, as already explained.
  • the rotary member 30 has a ramp portion 31 which has a rising pitch from the start of the ramp 32 to the ramp end 33 and may be part of the crushing space.
  • the ore 50 to be comminuted is already comminuted on account of the rising ramp region 31, as shown schematically by the decreasing spherical ore particles 51 and 52.
  • the ramp region 31 cooperates with a ring region 42 of the fixed element 40. Subsequently, the ore of protrusions 35 acting as accelerating members is accelerated and pulverized due to the rotation of the rotary member 30, which is in FIG. 8 are arranged at a uniform spacing in the circumferential direction of the rotary member 30.
  • the fixed element 40 may also have projections 45, which are arranged analogously to the projections 35 of the rotary member 30. Between the projections 35 of the rotary member corresponding recesses 36 are provided on the end face of the rotary member 30 as part of the crushing space.
  • the protrusions 35 have a predetermined angle in the transition to the recesses 36 to accelerate the ore to be crushed in both the radial direction in accordance with the rotation and the axial direction of the rotation axis of the rotary member.
  • the ore to be comminuted is accelerated into the center of the comminution space, where it encounters other accelerated ore elements, resulting in a fictitious pulverization by the micro-impact.
  • the fixed element 30 has corresponding recesses 46 between the projections 45 of the fixed element 40.
  • the intermediate space 60 is formed by the variable distance between the two comminution elements 30, 40, wherein, in addition to the variable distance, outlet passages 61 leading away from the rotational axis of the rotary element 30 in the rotary element 30 may be provided in the rotary element 30.
  • Auslasseintene 62 are provided in the fixed element 40 at a uniform spacing.
  • the pulverized ore 55 is discharged to the outside through the outlet recesses 61 and 62, respectively.
  • variable distance between the two comminution elements can be adjusted in particular by a hydraulic device, wherein preferably the fixed element 40 can be variably positioned in the axial direction with respect to the rotary element 30 to adjust the pulverization in particular to a different ore material in terms of size or composition can.
  • the fixed element 30 or the rotary element 40 or the two comminution elements can be moved apart hydraulically in the axial direction for repair and assembly work. Alternatively, they can be removed from the operating position by a pivoting movement of one of the two crushing elements from each other.
  • the acceleration elements 35 or other mechanically highly loaded elements of the pulverization device can be processed or replaced.
  • this enables mechanically highly loaded elements within the Pulverisier
  • the accelerating elements or projections 35 may be constructed of different materials and can be replaced as needed. This allows wear parts within the crushing space, such as the projections, also adapted to different ore material.
  • FIG. 6 which illustrates a schematically enlarged distance between the rotary member 30 and the fixed member 40, it can be seen that at only a small distance the ore to be crushed is thrown radially outwardly by the rotation and is caught by the casing 3 before the pulverized Ore is discharged via the outlet funnel 14 of the device according to the invention, for example, only by gravity or additionally by a suction device or the like.
  • FIG. 9 shows a further embodiment of a fixed element 140, which has a feed opening 141 in the center.
  • the fixed element 140 is with that of FIG. 8 identical, wherein the fixed element 140 has obliquely Auslasseinitese 162 through which the pulverized ore is transported to the outside.
  • FIG. 9 shown fixed element 41 may also be used in the illustrated form as a second rotary element, which compared to the in FIG. 8 illustrated rotary member 30 may have a different relative speed.
  • the embodiment of a comminution element shown has an angular range 144, which extends in each case on both sides from the acceleration element 143 to the recess 145. Depending on the direction of rotation, however, these two angular regions 144 may also be provided on only one side of the acceleration element 143 in order to accelerate the ore to be comminuted, depending on the direction of rotation of the comminuting element, both radially and axially with respect to the rotation of the comminuting element.
  • FIG. 10 is a cross section of the fixed element 40 of FIG. 8 illustrated, wherein the feed opening 41 has a funnel-shaped structure.
  • FIG. 11 a further embodiment of the crushing elements according to the present invention is shown.
  • FIGS. 11 to 13 further embodiments for cooperating crushing elements shown, which within the inventive device according to FIG. 6 can be arranged.
  • FIG. 11 For example, a fixed element 240 and a rotating rotary element 230 are shown, wherein the ore to be comminuted 50 is fed via the feed opening 241 into the comminuting space between the fixed element 240 and the rotary element 230.
  • the crushing space between the fixed member 240 and the rotary member 230 is formed from the rotation axis of the rotary member 230 to the outside substantially conically tapered, whereby the pulverization of the ore is accomplished on the one hand.
  • FIG. 12 it can be seen that the rotary element 230 has recesses 236, which are arranged at a uniform distance around the axis of rotation of the rotary element.
  • These recesses 236 provide in particular by the obliquely arranged transitions of the recess 236 for an acceleration and thus a pulverization of the ore due to the rotation, which ensures a relative movement between the rotary member 230 and the fixed element 240.
  • FIG. 13 is the fixed element 240 of FIG. 11 shown, which together with the rotary member 230 of FIG. 12 interacts.
  • the fixed element 240 shows in cross section in FIG. 13 the feed opening 241.
  • the fixed element 240 has analogous to the rotary member 230 recesses 246 in the radial direction about the center of the axis of rotation.
  • the chamfered portions of the recesses 236, 246 of the rotary member 230 and the fixed member 240 provide for an acceleration and crushing of the ore, which is discharged in powdered form through the gap 260 between the rotary member 230 and the fixed member 240 to the outside.
  • a method for comminuting ore material and / or, in particular, slag is thus provided, wherein the ore feed device 1 is provided for supplying ore to be comminuted 50 to a pulverization device.
  • the Pulverleiters shark is at least of two mutually movable crushing elements 30, 40 formed, which together form a crushing space for the ore to be comminuted, that by a relative movement in the form of rotation of at least one of the two crushing elements 30, 40, the crushed ore is thereby pulverized in that one or more acceleration elements, in particular projections, are provided on at least one of the comminuting elements 30, 40, which are arranged in particular on the front side of one of the two comminuting elements 30, 40, and which are produced by the rotation of one of the two comminution elements 30, 40 accelerate the ore to be crushed or mince.
  • a gap 60 is provided, through which during the rotation the pulverized ore from the center of the rotation or from the axis of rotation of the rotary element to the outside and from the two comminution elements 30th , 40 is transported away.
  • the ore pulverized thereby between the two crushing elements is discharged to the outside through the outlet means connected to the space 60.
  • water can still be fed through the ore feed device into the comminution chamber during the comminution process through a water inlet (not shown) or through the supply of water.
  • the water forms together with the ore during and after the pulverization a mud-like compound, wherein the water is transported together with the pulverized ore material through the outlet device.
  • the ramp area 31 is particularly advantageous for the slag crushing, since such a ramp area on the rotary member for pre-shredding of slag due to the rotation of the rotary member provides, in the transport direction after the ramp area projections and / or recesses according to the invention in the Crushing elements are provided to pulverize the particularly brittle and hard slag.
  • the number of protrusions on the two comminution elements may be the same, however, a different number of accelerator elements may be provided on the two comminution elements.
  • both crushing elements can rotate in the opposite direction to increase the relative movement between the two crushing elements.
  • the shape of the crushing chamber which is formed by the two crushing elements, in different ways executable, with different types of accelerating elements may be arranged in plate-shaped or wedge-shaped or similar form, accelerated by the ore to be crushed between the two crushing elements and thereby pulverized becomes.
  • a further crushing chamber which is provided independently of the two crushing elements, but is integrated into the device according to the invention.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Tents Or Canopies (AREA)
  • Connection Of Plates (AREA)
EP14162984.0A 2009-09-30 2010-09-30 Procédé et dispositif de broyage de minerai Active EP2762233B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009047818A DE102009047818A1 (de) 2009-09-30 2009-09-30 Verfahren und Vorrichtung zur Zerkleinerung von Erzmaterial
EP10770989.1A EP2482987B1 (fr) 2009-09-30 2010-09-30 Procédé et dispositif de fragmentation de matière minérale

Related Parent Applications (1)

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EP10770989.1A Division EP2482987B1 (fr) 2009-09-30 2010-09-30 Procédé et dispositif de fragmentation de matière minérale

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EP2762233A1 true EP2762233A1 (fr) 2014-08-06
EP2762233B1 EP2762233B1 (fr) 2018-03-07

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EP14162984.0A Active EP2762233B1 (fr) 2009-09-30 2010-09-30 Procédé et dispositif de broyage de minerai

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US (1) US8800900B2 (fr)
EP (2) EP2482987B1 (fr)
CN (1) CN102596414B (fr)
AU (1) AU2010300248B2 (fr)
BR (1) BR112012007270B1 (fr)
CA (1) CA2775615C (fr)
CL (2) CL2012000784A1 (fr)
DE (1) DE102009047818A1 (fr)
DK (1) DK2482987T3 (fr)
ES (1) ES2477223T3 (fr)
NZ (1) NZ599662A (fr)
PE (1) PE20121666A1 (fr)
PL (1) PL2482987T3 (fr)
PT (1) PT2482987E (fr)
RU (1) RU2562836C2 (fr)
SI (1) SI2482987T1 (fr)
WO (1) WO2011038914A1 (fr)
ZA (1) ZA201202309B (fr)

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EP3354622A1 (fr) 2017-01-26 2018-08-01 Omya International AG Procédé de préparation de carbonate de calcium naturel fragmenté avec un taux réduit d'impuretés, et les produits obtenus selon ce procédé

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DE102013005931A1 (de) 2013-04-05 2014-10-09 Micro Impact Mill Limited Vorrichtung und Verfahren zum Erzzerkleinern mit Rückführung
DE102013111365B4 (de) * 2013-10-15 2015-05-13 Cvp Clean Value Plastics Gmbh Vorrichtung und Verfahren zum Reinigen von Kunststoff im Zuge von Kunststoffrecycling
DE102014014945A1 (de) * 2014-10-09 2016-04-14 Micro Impact Mill Limited Vorrichtung und Verfahren zum Erzzerkleinern mit einer hydraulischen Federeinrichtung
WO2017002121A2 (fr) * 2015-06-30 2017-01-05 Gauzy Ltd Dispositifs de dispersion de cristaux liquides en couches multiples et simples pour des applications de glaçage commun et direct et procédés associés
CN107755339A (zh) * 2017-11-22 2018-03-06 贵州金鑫铝矿有限公司 一种多功能铝土矿清洗设备
CN116651582B (zh) * 2023-05-11 2024-01-23 中国科学院力学研究所 一种通过长距离加速提升矿石粉化效率的装置及方法

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WO2018137862A1 (fr) 2017-01-26 2018-08-02 Omya International Ag Procédé de préparation de carbonate de calcium naturel fragmenté à teneur réduite en impuretés et produits obtenus par ce procédé

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BR112012007270B1 (pt) 2021-08-31
PE20121666A1 (es) 2012-12-22
US20130048766A1 (en) 2013-02-28
CA2775615C (fr) 2018-01-16
CL2012000784A1 (es) 2012-07-20
ES2477223T3 (es) 2014-07-16
RU2562836C2 (ru) 2015-09-10
ZA201202309B (en) 2012-11-28
US8800900B2 (en) 2014-08-12
NZ599662A (en) 2013-05-31
CN102596414A (zh) 2012-07-18
EP2482987B1 (fr) 2014-04-02
EP2762233B1 (fr) 2018-03-07
EP2482987A1 (fr) 2012-08-08
DK2482987T3 (da) 2014-06-30
AU2010300248B2 (en) 2014-07-03
WO2011038914A9 (fr) 2013-10-24
PL2482987T3 (pl) 2014-09-30
WO2011038914A1 (fr) 2011-04-07
PT2482987E (pt) 2014-05-26
CA2775615A1 (fr) 2011-04-07
DE102009047818A1 (de) 2011-04-07
AU2010300248A1 (en) 2012-05-24
SI2482987T1 (sl) 2014-08-29
RU2012118520A (ru) 2013-12-27
CL2012000807A1 (es) 2012-07-20
BR112012007270A2 (pt) 2020-12-22
WO2011038914A4 (fr) 2011-07-21
CN102596414B (zh) 2015-03-25

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