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WO2022016211A1 - Broyeur - Google Patents

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Publication number
WO2022016211A1
WO2022016211A1 PCT/AU2021/050751 AU2021050751W WO2022016211A1 WO 2022016211 A1 WO2022016211 A1 WO 2022016211A1 AU 2021050751 W AU2021050751 W AU 2021050751W WO 2022016211 A1 WO2022016211 A1 WO 2022016211A1
Authority
WO
WIPO (PCT)
Prior art keywords
shell
grinding
drive shaft
grinding mill
segments
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.)
Ceased
Application number
PCT/AU2021/050751
Other languages
English (en)
Inventor
Jeffrey Victor Belke
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.)
Vectis Pty Ltd As Trustee For Jjb Trust
Original Assignee
Vectis Pty Ltd As Trustee For Jjb Trust
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 AU2020902506A external-priority patent/AU2020902506A0/en
Application filed by Vectis Pty Ltd As Trustee For Jjb Trust filed Critical Vectis Pty Ltd As Trustee For Jjb Trust
Publication of WO2022016211A1 publication Critical patent/WO2022016211A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B02C17/18—Details
    • B02C17/22—Lining for containers
    • 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
    • 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
    • B02C17/161—Arrangements for separating milling media and ground material
    • 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
    • B02C17/163—Stirring means
    • 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
    • B02C17/18—Details
    • 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
    • B02C17/18—Details
    • B02C17/24—Driving mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/02—Crushing or disintegrating by disc mills with coaxial discs
    • B02C7/06—Crushing or disintegrating by disc mills with coaxial discs with horizontal axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/11—Details
    • B02C7/12—Shape or construction of discs
    • 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
    • B02C2017/165—Mills in which a fixed container houses stirring means tumbling the charge with stirring means comprising more than one agitator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2210/00—Codes relating to different types of disintegrating devices
    • B02C2210/02—Features for generally used wear parts on beaters, knives, rollers, anvils, linings and the like

Definitions

  • the present disclosure relates to a grinding mill.
  • the present disclosure relates to a grinding mill used to grind mineral ore particles or other particulate material, which are typically mixed with grinding media and water to form a slurry.
  • a grinding mill (also known as an attrition mill) is an apparatus used to pulverise or comminute particulate material. There are a large variety of grinding mills each being aimed at grinding different types of materials and being configured to yield resultant particles having a desired particulate size.
  • One type of grinding mill such as the commercially known IsaMill, is a fine grinding mill which is configured to receive a feed of ore particles that are in the range of about 30 pm to 4000 pm in diameter and to grind these down to produce particles with a target product size in the range of about 5 pm to 60 pm in diameter.
  • the grinding mill uses an inert grinding media, such as silica sand, waste smelter slag, or ceramic or steel balls, which is mixed in and stirred together with the ore particles being ground.
  • the grinding mill includes a housing/shell defining a grinding chamber in which is provided several rotors/stirrers mounted on a rotating shaft.
  • the grinding chamber is filled with a slurry of the grinding media, the ore particles and water.
  • the rotors are configured to cause motion in the slurry resulting in collisions between the ore particles and the grinding media and also between the ore particles and other ore particles, thereby breaking down the ore particles by attrition and abrasion.
  • the grinding mill can be provided as either a vertical shaft mill or a horizontal shaft mill.
  • Prior art examples of vertical shaft mills are described in US 8,205,817 and
  • the highly abrasive conditions within the grinding mill results in wear to the shaft and the rotors mounted thereon.
  • the shell is provided with an internal lining to protect the shell from excessive wearing, but also this lining must be replaced from time-to-time after it becomes damaged or worn through use.
  • the shaft and shell are separated, e.g. in an IsaMill or other horizontal mills the shaft and rotors are pulled axially out from the shell.
  • This same separation process can also be used in vertical mills.
  • some larger vertical mills, such as the mill described in WO 2020/053419 the shell is separated laterally to allow access to the rotor. Inevitably, for the removal of the rotor or the separation of the shell to occur, any slurry contained or remaining within the grinding chamber needs to be dumped.
  • Dumping of the slurry is considered disadvantageous and dangerous for numerous reasons, namely (i) it leads to a waste of slurry that cannot be easily recycled or reprocessed, (ii) it creates an environmental hazard requiring clean-up, (iii) it increases the required infrastructure as a bund or other containment vessel must be provided to capture any dumped slurry, and/or (iv) especially when the grinding media comprises heavy steel balls, there is a risk of these balls causing injury by sliding into or onto operators as the slurry is dumped.
  • a grinding mill comprising a shell enclosing a grinding chamber that is configured to contain a slurry of a liquid, ore particles and grinding media; a drive shaft extending into the grinding chamber, the drive shaft supporting a plurality of rotors located within the grinding chamber whereby, during use, rotation of the rotors is configured to cause motion of the slurry; the shell comprising an annular side wall and opposed end walls, wherein the side wall comprises two or more shell segments being joined together, each of the shell segments being selectively removable from the side wall to provide an opening in the shell to allow maintenance access to the grinding chamber and the rotors; and wherein the grinding media is retained within the grinding chamber while each shell segment is selectively removed from the side wall.
  • the grinding media and some residual ore particles are retained within the grinding chamber while each shell segment is selectively removed from the shell.
  • the shell may be substantially cylindrical having a horizontally orientated central axis.
  • the grinding mill may comprise rolling rings being co-axially joined to the shell, the rolling rings being rotatably seated within complementary support frames and being configured to permit rotation of the shell around the central axis.
  • the support frames may carry rollers abutting the rolling rings.
  • the rollers are drive rollers that are operatively joined to motors for rolling the shell around the central axis.
  • the rolling rings may be joined to an outer side of the end walls and located remote from the shell thereby to avoid hindering selective removal of the shell segments.
  • the end walls and the rolling rings may be diametrically split into hemispheres.
  • the shell may comprise locking collars enabling the shell to be locked in selected positions around the central axis and thereby prevent rotation of the shell relative to the support frames.
  • the grinding mill may comprise a locking formation being configured to permit the drive shaft to be locked to the shell to thereby retain the drive shaft in a fixed angular orientation relative to the shell.
  • the locking formation comprises locking brackets extending from the shell adjacent to the drive shaft, with the locking brackets and the drive shaft both having slots that are configured to removably receive a pin for locking the drive shaft to the locking brackets.
  • Each of the shell segments may be similarly shaped and dimensioned arc-shaped shell segments.
  • the shell comprises three shell segments each extending through an arc of about 120°.
  • Each shell segment may comprise an inspection hatch that is normally closed by a cover, each inspection hatch being configured to permit inspection of the grinding chamber when such inspection hatch is operatively positioned above a surface of slurry contained within the grinding chamber, and each inspection hatch further being configured to permit dumping of slurry from the grinding chamber when such inspection hatch is operatively positioned beneath the surface of the slurry.
  • One or more of the rotors may be a multi-component part comprising a hub configured to be supported on the drive shaft, and the hub removably carrying multiple grinding disc segments.
  • Each grinding disc segment may be removably joined to a splice plate, and the splice plate is removably joined to the hub.
  • each grinding disc segment is in abutting contact with each of its neighbouring grinding disc segments while each splice plate is spaced away from its neighbouring splice plate, thereby to define openings extending axially through the rotor.
  • each rotor comprises three grinding disc segments each extending through an arc of about 120°. In another embodiment each shell segment and each grinding disc segment extends through a similar arc.
  • a method of conducting maintenance on a grinding mill as described in the first aspect of the disclosure, the method comprising the steps of: a) removing one or more of the shell segments that are positioned above a surface of slurry contained within the grinding chamber; b) inspecting and conducting any requisite maintenance on the removed shell segment; c) inspecting and conducting any requisite maintenance on a part of a rotor that is rotationally aligned with the removed shell segment; d) reattaching the removed shell segment to close the grinding chamber; and e) repeating steps (a) to (d) until each shell segment has been removed and inspected.
  • the maintenance may be conducted without exhausting or dumping the slurry and/or grinding media from the grinding chamber.
  • One or more of the shell segments may be simultaneously removable to permit replacement of the drive shaft. In such case it may be necessary to exhaust or dump some or all of the slurry.
  • Figure 1 shows a perspective view of a grinding mill according to the present disclosure
  • Figure 2 shows an end view of the grinding mill of Figure 1 ;
  • Figure 3 shows a side view of the grinding mill of Figure 1
  • Figure 4 shows a sectional side view of the grinding mill of Figure 1 ;
  • Figure 5 shows a perspective view of the grinding mill having part of its shell removed to allow access to its grinding chamber allowing removal of or maintenance to its rotors;
  • Figure 6 shows an end view of a single rotor
  • Figure 7 shows a perspective view of the grinding mill having a major part of its shell removed to allow access to its grinding chamber allowing removal of or maintenance to its drive shaft.
  • the grinding mill 10 for use in grinding mineral ore particles or other particulate materials, which are typically mixed with grinding media and a liquid, e.g. water, to form a slurry.
  • the grinding mill 10 includes a substantially cylindrical housing or shell 12 comprising an annular side wall 14 that is closed at its opposed ends by end walls 16,18.
  • end walls 16,18 are shown having a planar configuration in the exemplary embodiment, other embodiments of the end walls may be dome shaped.
  • the grinding mill 10 is configured to be substantially horizontally orientated in use.
  • the end walls 16,18 are respectively attached to outer rolling rings 20 that are arranged co axially with a central axis 22 of the shell 12.
  • the rolling rings 20 are joined to the end walls 16,18 on their outer sides and located remote from the shell 12.
  • the rolling rings 20 are seated in cradles or support frames 24 that are typically secured to a base platform or foundation (not shown).
  • the support frames 24 are generally concave when seen in end view and have opposed arms 26 that each carry one or more rollers 28 being configured to abut against the rolling rings 20 and thereby enable the shell 12 to be rotated around the central axis 22.
  • the rollers 28 can be idler rollers or drive rollers.
  • the rolling rings 20 include spokes 30 that are bolted onto flanges 32 projecting outwardly from the end walls 16,18.
  • the rolling rings 20 and the end walls 16,18 each are diametrically split into two similar hemispheres.
  • the shell 12 encloses a grinding chamber 34.
  • a drive shaft 36 extends axially through the shell 12, with the drive shaft 36 carrying a plurality of rotors 38 that are located within the grinding chamber 34.
  • the drive shaft 36 also carries a classifier 40 and various other parts, the details of which are not required for purposes of this disclosure, but the function and working of which will be understood by the skilled addressee.
  • the drive shaft 36 is mounted on bearings 42 at each end wall 16,18 permitting the drive shaft 36 to rotate with respect to the shell 12 and thereby permit the rotors 38 to be rotated within the grinding chamber 34.
  • the bearings 42 will include various seals and glands being configured, during use, to prevent leakage of any slurry from the grinding chamber 34.
  • the shell 12 includes locking collars 44 that can be selectively secured to locking brackets 46, e.g. by temporarily bolting the locking collars 44 to the locking brackets 46.
  • the locking collars 44 have bolt holes at various discrete locations allowing the shell 12 to be locked in place at various angular orientations around the central axis 22.
  • various other locking means can be provided, such as by using latches or levers to secure the locking collars 44 to the locking brackets 46.
  • the locking brackets 46 are mounted on the base platform while in other embodiments the locking brackets 46 can be mounted on the support frames 24.
  • the locking brackets 46 can form part of the support frames 24 whereby the locking collars 44 are secured directly to the support frames 24 to prevent rotation of the shell 12.
  • the grinding mill 10 includes a further locking formation being configured to permit the drive shaft 36 to be locked to the shell 12 to thereby retain the drive shaft 36 in a fixed angular orientation relative to the shell 12.
  • the drive shaft 36 In the opposed ends of the drive shaft 36 that protrude beyond the shell 12, the drive shaft 36 has transverse through-holes 48 that extend diametrically therethrough and which are configured to receive locking pins 50 extending between two brackets 52.
  • the locking pins 50 are removed and the drive shaft 36 can rotate within the shell 12.
  • the locking pins 50 are inserted to lock the drive shaft 36 to the brackets 52 and thereby prevent rotation of the drive shaft 36 relative to the shell 12.
  • the drive shaft 36 may have multiple through-holes 48 arranged at various angular orientations with respect to each other, e.g. at 60° angles, thereby to enable the drive shaft 36 to be locked in place at various angular orientations around the central axis 22.
  • the side wall 14 comprises multiple similarly shaped and dimensioned arc-shaped shell segments 54 that are bolted together and to the end walls 16,18 to define the shell 12.
  • the exemplary embodiment shows the side wall 12 comprising three shell segments 54 wherein each shell segment 54 extends through about 120° of the side wall circumference. It should be understood that other embodiments of the side wall 14 can comprise a different number of shell segments, wherein the shell segments can also extend through a different arc, e.g. comprising four 90°-arc segments or five 72°-arc segments or other geometrical variations.
  • Each shell segment 54 is provided with circumferential strengthening ribs 56 spaced at discrete intervals along the axial length of the shell segment 54.
  • Each segment also has one or more inspection hatches 58 that are normally closed by covers 60.
  • Each inspection hatch 58 is configured to permit inspection of the grinding chamber 34 when such inspection hatch 58 is operatively positioned above a surface of slurry contained within the grinding chamber 34, and each inspection hatch 58 is further configured to permit dumping of slurry from the grinding chamber 34 when such inspection hatch 58 is operatively positioned beneath the surface of the slurry.
  • the shell segments 54 and covers 60 are provided with various suitable anchor points 62 that allow connection of a crane hook or the like when the shell segment 54 or cover 60 is to be lifted away from the shell 12.
  • Each of the shell segments 54 is provided with an internal lining 64 being configured to withstand damage during use by abrasion of the ore particles and grinding media against the lining.
  • Figures 4 and 5 show the rotors 38 being spaced at discrete intervals along the drive shaft 36. The desired spacing between the rotors 38 is maintained by providing spacers 66 (see Figures 4 and 7) between each of the rotors 38.
  • each rotor 38 is a multi-component part comprising a central hub 68 that is keyed to the drive shaft 36.
  • Each rotor 38 further comprises discrete grinding disc segments 70 that are arranged to form a ring concentrically surrounding the hub 68 and with the grinding disc segments 70 being joined to the hub 68 by splice plates 72.
  • Each grinding disc segment 70 ends near or in abutting contact with each of its neighbouring grinding disc segments 70 while each splice plate 72 is spaced away from its neighbouring splice plate 72, thereby to define openings 74 extending axially through the rotor 38.
  • the exemplary embodiment shows three grinding disc segments 70 each extending through an arc of about 120°.
  • the grinding disc segments 70 and splice plates 72 are removably attached to the hub 68, e.g. being bolted thereto, so that they can be individually removed or replaced as needed.
  • the grinding chamber 34 is loaded with grinding media, while a feed of ore particles and water is introduced into the grinding chamber 34 through an inlet in the end wall 18, thereby resulting in the formation of a slurry of the ore particles, grinding media and water being present within the grinding chamber 34.
  • the grinding chamber 34 will be filled with slurry to a maximum volume of about 65% vol/vol.
  • the shell 12 will be anchored to the locking brackets 46 to be stationary while the drive shaft 36 is rotated to cause rotation of the rotors 38.
  • this rotation will cause movement in and mixing of the slurry within the grinding chamber 34 resulting in collisions between the ore particles and the grinding media and also between the ore particles and other ore particles, thereby breaking down the ore particles by attrition and abrasion.
  • Coarse ore particles in the slurry move to the radially outer side of the grinding chamber 34 under centrifugal forces where they undergo further grinding, while fine or finished ground ore particles are able to flow axially through the rotors 38 (through the openings 74 between the splice plates 72) towards the classifier 40. Once the ore particles are sufficiently fine, they are able to pass through the classifier 40 and exit the grinding chamber 34 through an outlet in the end wall 16. From time-to-time it will become necessary to conduct maintenance on the grinding mill 10. In most instances, the maintenance work will normally require repair or replacement of the rotors 38 and also repair or replacement of the lining 64 on the shell segments 54.
  • the shell 12 is then unlocked from the locking brackets 46 so that the shell 12 can be rotated on the support frames 24 until a desired shell segment 54.1 is positioned above the slurry surface at or near the top of the shell 12, whereafter the shell 12 is again locked to the locking brackets 46.
  • the top positioned shell segment 54.1 can then be removed from the shell 12 to permit access to the grinding chamber 34 - this is shown in Figure 5 - during which time the lining of the removed shell segment 54.1 can be inspected and repaired.
  • the rotors 38 can also be inspected and, if necessary, the top positioned grinding disc segments 70 be removed from their splice plates 72 for repair or replacement.
  • the shell segment 54.1 is reattached to the shell 12, whereafter the shell 12 is then again unlocked from the locking brackets 46 and rotated on the support frames 24 until a further shell segment 54.2 is positioned above the slurry surface at or near the top of the shell 12 and relocked to the locking brackets 46.
  • This permits removal of the shell segment 54.2, inspection and repair thereto and to the grinding disc segments 70 that are aligned therewith, and subsequent replacement of the shell segment 54.2.
  • These steps can be repeated for maintenance to the final shell segment 54.3. Obviously, the above steps can be repeated as often as necessary if the shell comprises more than three shell segments until each of the shell segments has been removed for inspection and repair.
  • opening the inspection hatches 58 in this manner is relatively free from operator risk as there is no sudden exhaustion of slurry on opening, i.e. the inspection hatches 58 are manually opened by the operator, the operator can move beyond a retaining bund positioned under the shell 12 and only then is the shell 12 rotated to dump the media in a relatively orderly manner during which the rate of discharge can be controlled by adjusting the degree of rotation of the shell 12.
  • the grinding mill 10 does not require axial removal of the drive shaft 36 from the shell 12 (as is the position in the prior art), it is possible to support the drive shaft at both its opposed ends and it is not necessary to provide a cantilevered drive shaft. Accordingly, it is likely that the grinding mill 10 will require less structural strength and will have smaller footprint than conventional horizontally orientated grinding mills.
  • the shell 12 can be partitioned into two or more shell segments 54, whereby the rotors 38 will be equivalently partitioned into two or more grinding disc segments 70.
  • the word “comprise” or variations such as “comprises” or “comprising” is used in a non-limiting and an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in the various embodiments of the crusher.
  • a reference to an element by the indefinite article "a” does not exclude the possibility that more than one of the elements is present, unless the context clearly requires that there be one and only one of the elements.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

Un broyeur pour broyer des particules minérales de minerai ou d'un autre matériau particulaire est divulgué. Le broyeur comprend une enveloppe renfermant une chambre de broyage qui est conçue pour contenir une suspension des particules de minerai, des milieux de broyage et de l'eau. Un arbre primaire s'étend dans la chambre de broyage, l'arbre primaire supportant une pluralité de rotors situés à l'intérieur de la chambre de broyage de telle sorte que, pendant l'utilisation, la rotation des rotors provoque le mouvement et la circulation de la suspension. L'enveloppe est sensiblement cylindrique avec un axe central orienté horizontalement, l'enveloppe comprenant deux segments d'enveloppe de paroi latérale annulaires ou plus qui sont joints l'un à l'autre, chacun des segments d'enveloppe étant ainsi sélectivement amovible à partir de la paroi latérale pour permettre un accès de maintenance à la chambre de broyage et aux rotors sans nécessiter l'évacuation ou le déversement de la suspension de la chambre de broyage.
PCT/AU2021/050751 2020-07-20 2021-07-14 Broyeur Ceased WO2022016211A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2020902506A AU2020902506A0 (en) 2020-07-20 Grinding mill
AU2020902506 2020-07-20

Publications (1)

Publication Number Publication Date
WO2022016211A1 true WO2022016211A1 (fr) 2022-01-27

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ID=79729522

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2021/050751 Ceased WO2022016211A1 (fr) 2020-07-20 2021-07-14 Broyeur

Country Status (1)

Country Link
WO (1) WO2022016211A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115106165A (zh) * 2022-06-07 2022-09-27 栾川县金鼎矿业有限公司 一种钼矿石加工用球磨机
CN118275201A (zh) * 2024-03-28 2024-07-02 河南发恩德矿业有限公司 一种基于等离子体光谱分析银多金属矿的预处理装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3614002A (en) * 1969-07-07 1971-10-19 D Ore Mills Inc Dry fine crusher
WO2003092897A1 (fr) * 2002-04-30 2003-11-13 Netzsch-Feinmahltechnik Gmbh Broyeur agitateur
US20140096705A1 (en) * 2012-10-09 2014-04-10 Clinton Wesley Pike, SR. Process for treating fly ash and a rotary mill therefor
WO2015000457A1 (fr) * 2013-07-05 2015-01-08 Netzsch-Feinmahltechnik Gmbh Système de fermeture de broyeurs à billes et procédé d'ouverture et de fermeture de broyeurs à billes
WO2015003208A1 (fr) * 2013-07-08 2015-01-15 Outotec (Finland) Oy Élément de répartition de contraintes pour coque de broyeur
WO2020053419A1 (fr) * 2018-09-14 2020-03-19 Vertical Power Mills Technology AG Broyeur vertical à boulets, segment de stator pour broyeur vertical à boulets, et procédé d'entretien d'un broyeur vertical à boulets
WO2020079323A1 (fr) * 2018-10-19 2020-04-23 Outotec (Finland) Oy Broyeur

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3614002A (en) * 1969-07-07 1971-10-19 D Ore Mills Inc Dry fine crusher
WO2003092897A1 (fr) * 2002-04-30 2003-11-13 Netzsch-Feinmahltechnik Gmbh Broyeur agitateur
US20140096705A1 (en) * 2012-10-09 2014-04-10 Clinton Wesley Pike, SR. Process for treating fly ash and a rotary mill therefor
WO2015000457A1 (fr) * 2013-07-05 2015-01-08 Netzsch-Feinmahltechnik Gmbh Système de fermeture de broyeurs à billes et procédé d'ouverture et de fermeture de broyeurs à billes
WO2015003208A1 (fr) * 2013-07-08 2015-01-15 Outotec (Finland) Oy Élément de répartition de contraintes pour coque de broyeur
WO2020053419A1 (fr) * 2018-09-14 2020-03-19 Vertical Power Mills Technology AG Broyeur vertical à boulets, segment de stator pour broyeur vertical à boulets, et procédé d'entretien d'un broyeur vertical à boulets
WO2020079323A1 (fr) * 2018-10-19 2020-04-23 Outotec (Finland) Oy Broyeur

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115106165A (zh) * 2022-06-07 2022-09-27 栾川县金鼎矿业有限公司 一种钼矿石加工用球磨机
CN115106165B (zh) * 2022-06-07 2024-04-26 栾川县金鼎矿业有限公司 一种钼矿石加工用球磨机
CN118275201A (zh) * 2024-03-28 2024-07-02 河南发恩德矿业有限公司 一种基于等离子体光谱分析银多金属矿的预处理装置

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