CN105689068B - The barrel and horizontal grinding mill of horizontal grinding mill - Google Patents
The barrel and horizontal grinding mill of horizontal grinding mill Download PDFInfo
- Publication number
- CN105689068B CN105689068B CN201610217506.7A CN201610217506A CN105689068B CN 105689068 B CN105689068 B CN 105689068B CN 201610217506 A CN201610217506 A CN 201610217506A CN 105689068 B CN105689068 B CN 105689068B
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- CN
- China
- Prior art keywords
- lifting member
- barrel
- projection
- grinding mill
- horizontal grinding
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- 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.)
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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
- 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
- B02C17/18—Details
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The present invention relates to ore reduction field, disclose a kind of horizontal grinding mill and its barrel, the barrel can be rotated around the axis of its own, the barrel includes rotating part (30) and is located at the inlet port and outlet port at the both ends of rotating part (30) in the axial direction respectively, lifting member is provided with the inner wall of the rotating part (30), wherein, the lifting member includes the first lifting member (1) and the second lifting member (2), first lifting member (1) has the first pusher face (10) for being used for that big particle diameter material to be pushed to the feed inlet, second lifting member (2) has the second pusher face (20) for being used for that small particle material to be pushed to the discharge port.The barrel of horizontal grinding mill provided by the invention can improve the crushing efficiency and production efficiency of ore.
Description
Technical field
The present invention relates to ore reduction field, and in particular, to the barrel and horizontal grinding mill of a kind of horizontal grinding mill.
Background technology
In the ore-dressing technique of iron ore mine, the iron ore after level-one crushes (thick broken) (particle diameter is about in 0-300mm)
Need to carry out two-stage crushing by semi-autogenous mill, so as to obtain the satisfactory iron ore of particle diameter (particle diameter is about 0-3mm).
Existing semi-autogenous mill include the barrel that can rotate about the axis thereof and respectively positioned at barrel both ends feed inlet with
Discharge port, is provided with liner plate on the inner wall of barrel, lifting strip is provided with liner plate, and with the rotation of barrel, lifting strip can will
Ore is promoted to certain altitude, is impacted by potential energy, and ore is crushed.It is constantly heavy during ore passes through barrel
It is multiple broken, until semi-autogenous mill gape discharges it.
It is constantly by way of material inlet feed by the ore deposit in barrel however, during ore passes through barrel
Stone is promoted towards discharge port.In this case, it is larger, undesirable that the ore discharged from discharge port inevitably adulterates particle diameter
Ore is, it is necessary to repeat to be put into semi-autogenous mill to reprocess.
Therefore, the ore reduction efficiency of existing semi-autogenous mill and production efficiency are more low.
The content of the invention
The object of the present invention is to provide a kind of barrel of horizontal grinding mill, the barrel of the horizontal grinding mill can improve ore
Crushing efficiency and production efficiency.
To achieve these goals, the present invention provides a kind of barrel of horizontal grinding mill, the barrel can around its own
Axis rotates, and the barrel includes rotating part and the respectively feed inlet positioned at the both ends of the rotating part in the axial direction and discharging
Mouthful, lifting member is provided with the inner wall of the rotating part, wherein, the lifting member includes the first lifting member and the second lifting member,
First lifting member has the first pusher face for being used for that big particle diameter material to be pushed to the feed inlet, the second lifting member tool
It is useful for pushing to small particle material the second pusher face of the discharge port.
Preferably, the first pusher face is plane, between the first pusher face and the axis direction of the barrel
The scope of angle α is：0 ° of ＜ α≤45 °；And/or
The second pusher face is plane, the angle between the second pusher face (20) and the axis direction of the barrel
The scope of β is：0 ° of ＜ α≤45 °.
Preferably, first lifting member includes the first liner plate portion for installing and protruded from the first liner plate portion the
One projection, first projection extend to go out corresponding to described in the first liner plate portion from one end corresponding to the feed inlet
One end of material mouth, and the side of first projection is formed as the first pusher face；Second lifting member includes being used for
Installation the second liner plate portion and from the second liner plate portion protrude the second projection, second projection in the second liner plate portion from
One end corresponding to the discharge port is extended to corresponding to one end of the feed inlet, and the side of second projection is formed
For the second pusher face；Wherein, first projection is more than described second relative to the projecting height in the first liner plate portion
Projection relative to the second liner plate portion projecting height.
Preferably, first projection includes two sides, the projected direction of two sides on first projection
Symmetrically；Second projection includes two sides, and two sides are symmetrical on the projected direction of second projection, so that
The barrel can be used when the horizontal grinding mill is rotated forward and reversely rotated；Wherein, when the horizontal grinding mill
During reverse rotation, the feed inlet and the discharge port exchange position.
Preferably, the axis direction of the lifting member along the barrel is arranged in rows the inner wall in the whole rotating part
On.
Preferably, lifting member described in each row includes multiple first lifting members and multiple second lifting members.
Preferably, in lifting member described in same row, first lifting member is alternately arranged with second lifting member.
Preferably, it is respectively first lifting on corresponding position in two rows of lifting members of arbitrary neighborhood
Part and the second lifting member.
Preferably, the lifting member is arranged as even rows.
Based on the above technical solutions, the present invention also provides a kind of horizontal grinding mill, wherein, the horizontal grinding mill
For semi-autogenous mill and include the barrel of horizontal grinding mill provided by the invention, being provided with the barrel multiple has different-diameter
Steel ball；Alternatively, the horizontal grinding mill is autogenous tumbling mill and includes the barrel of horizontal grinding mill provided by the invention.
Through the above technical solutions, by setting the first lifting member and the second lifting member, can in barrel to ore into
Row classification, can be pushed to feed inlet to repeat processing (broken), in the process by the first lifting member by big particle diameter ore
Small particle ore is obtained, discharge port can to quickly be pushed small particle ore by the second lifting member, so that meeting the requirements
Ore accelerate discharged from barrel, improve the crushing efficiency and production efficiency of ore, while discharging ore can also be improved
Qualification rate.Horizontal grinding mill provided by the invention includes barrel provided by the invention, therefore equally has the advantages that above-mentioned.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Attached drawing is for providing a further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the rotating part for being provided with lifting member of the barrel of horizontal grinding mill according to the preferred embodiment of the present invention
Schematic diagram；
Fig. 2 is showing for the first lifting member for being set on the barrel of horizontal grinding mill according to the preferred embodiment of the present invention
It is intended to；
Fig. 3 is the sectional view of the first lifting member shown in Fig. 2；
Fig. 4 is showing for the second lifting member for being set on the barrel of horizontal grinding mill according to the preferred embodiment of the present invention
It is intended to；
Fig. 5 is the sectional view of the second lifting member shown in Fig. 4.
Description of reference numerals
1 first lifting member；10 first pusher faces；11 first liner plate portions；12 first projections；2 second lifting members；20 second push away
Charge level；21 second liner plate portions；22 second projections；30 rotating parts.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
In the present invention, in the case where not making conversely explanation, the noun of locality such as " upper and lower " used is typically referred to reference to attached
It is upper and lower shown in figure；" inside and outside " refers to the inside and outside of the profile relative to each component in itself, but the above-mentioned noun of locality is not used to limit
The system present invention.
The present invention provides a kind of barrel of horizontal grinding mill, which can rotate around the axis of its own, the barrel
Including rotating part 30 and respectively positioned at the inlet port and outlet port at the both ends of rotating part 30 in the axial direction, the rotating part
Lifting member is provided with 30 inner wall, wherein, the lifting member includes the first lifting member 1 and the second lifting member 2, and described first carries
Rising part 1 has the first pusher face 10 for being used for that big particle diameter material to be pushed to the feed inlet, and second lifting member 2, which has, to be used for
Small particle material is pushed to the second pusher face 20 of the discharge port.
By setting the first lifting member 1 and the second lifting member 2, can be accomplished that, in barrel to big particle diameter material (such as
Ore) and small particle material while be classified, additionally it is possible to feed inlet to is pushed big particle diameter material by the first lifting member 1
(may be referred to the side where A in Fig. 1), during thereby, it is possible to extend processing of the undesirable material of particle diameter in barrel
Between and broken number so that big particle diameter material repeats broken until obtaining satisfactory small particle material, also, passes through second
Small particle material can be pushed to discharge port (may be referred to the side where B in Fig. 1) by lifting member 2 so that satisfactory thing
Material is discharged from barrel as early as possible, with for material vacating space to be processed.Therefore, on the one hand barrel provided by the invention can carry
The qualification rate of height discharge material, improves crushing efficiency, on the other hand can also increase the yield of discharge material, improves production effect
Rate.
Below with reference to Fig. 1 to Fig. 5 detailed description of the present invention embodiments.
In embodiment provided by the invention, there can be a variety of suitable modes that the first lifting member 1 and the are set
Two lifting members 2, are classified the material with different-grain diameter with realizing, while can also improve the conveying speed (bag of material
Include and push big particle diameter material to feed inlet and push small particle material to discharge port).For example, the first lifting member 1 can returned
The bar that the more radial directions along barrel of spiral-like curve extend is arranged on the inner wall of transfer part 30, is had between adjacent bar
Certain spacing, the spacing prevent the material of greater particle size from by the way that and the material compared with small particle can pass through.In this feelings
Under condition, continuous bar is linked to be the first pusher face 10.Second lifting member 2 can be to arrange identical plate, plate with the first lifting member 1
The surface of part forms the second pusher face 20.The extended length of bar is less than the extended length of plate.In this case, can be real
Now to the classification of material, the conveying speed of material can be also improved.
In preferred embodiment provided by the invention, it can realize to big particle diameter material and small particle stock grading
On the basis of, the first pusher face 10 can be plane, and the second pusher face 20 can also be plane.But it is provided by the invention its
In his embodiment, the first pusher face 10 and the second pusher face 20 can also be curved surface.
In preferred embodiment provided by the invention, in order to apply the thrust towards feed inlet, the first pusher to material
Face 10 can be tilted relative to the axis direction of barrel, the folder between the first pusher face 10 and the axis direction of the barrel
Angle α's may range from：0 ° of ＜ α≤45 °.
Similarly, in order to apply the thrust towards discharge port to material, the second pusher face 10 can also be relative to the axis of barrel
Line direction tilts, and the angle β's between the second pusher face 20 and the axis direction of the barrel may range from：0 ° of ＜ α
≤45°。
In embodiment provided by the invention, the first lifting member 1 and the second lifting member 2 can have a variety of respectively
Suitable structure.For example, the wedge block with inclined plane (inclined plane is above-mentioned pusher face).Preferably, referring to figs. 2 and 3,
First lifting member 1 is included for the first liner plate portion 11 installed (for example, could be formed with bolt in the first liner plate portion 11
First lifting member 1, is connected on the rotating part 30 of barrel by hole by bolt).In order to set the first pusher face 10, the first lifting
Part 1 further includes the first projection 12 protruded from the first liner plate portion 11, and the first projection 12 is in the first liner plate portion 11 from correspondence
One end corresponding to the discharge port is extended in one end of the feed inlet, and the side of first projection 12 is formed as
The first pusher face 10.In addition, the lower edges in the first liner plate portion 11 can be parallel to the axis direction of barrel.
Preferably, with reference to figure 4 and Fig. 5, second lifting member 2 include the second liner plate portion 21 for installing and from this
The second projection 22 that two liner plate portions 21 protrude, second projection 22 is in the second liner plate portion 21 from corresponding to the feed inlet
One end extend to one end corresponding to the discharge port, and the side of second projection 22 is formed as second pusher
Face 20.In addition, the lower edges in the second liner plate portion 21 can be parallel to the axis direction of barrel.
Wherein, first projection 12 is more than second projection 22 relative to the projecting height in the first liner plate portion 11
Relative to the projecting height in the second liner plate portion 21, therefore, with the rotation of barrel, the first pusher face in the first projection 12
10 can lift the material of greater particle size, and the second pusher face 20 in the second projection 22 is then merely able to thing of the lifting compared with small particle
Material, so as to fulfill the classification of big particle diameter material and small particle material.
In addition, in the other embodiment of the present invention, the first lifting member 1 can be connected to barrel otherwise
On, for example, directly the first liner plate portion 11 can be welded on the inner wall of rotating part 30 of barrel.Similarly, can be directly by
Two liner plate portions 21 are welded on the inner wall of rotating part 30 of barrel.
First projection 12 includes two sides, the projected direction pair of two sides on first projection 12
Claim；Second projection 22 includes two sides, and two sides are symmetrical on the projected direction of second projection 22.Pass through
This arrangement, the barrel can be used when the horizontal grinding mill is rotated forward and reversely rotated.Wherein it is possible to understand
Ground, when the horizontal grinding mill reversely rotates, the feed inlet and the discharge port exchange position.
In addition, the first pusher face 10 and the projection direction of the first projection 12 can have a certain degree, in order to material
Leave.Similarly, the second pusher face 20 and the projection direction of the second projection 22 can have a certain degree, in order to the throwing of material
Fall.
Process of the material in barrel may be referred to Fig. 1 and be described, and before this, can define shown in Fig. 1
Embodiment in barrel direction of rotation R for forward direction.When barrel rotates forward, A represents the position where feed inlet,
B represents the position where discharge port, and the upper surface of the first projection 12 of the first lifting member 1 is the first pusher face 10, correspondingly, the
The upper surface of second projection 22 of two lifting members 2 is the second pusher face 20, thereby, it is possible to be accomplished that, when by material from charging
When mouthful being sent into barrel, with the rotation of barrel, the first lifting member 1 is by the constantly lifting of small particle material and at the same time by small particle thing
Material is promoted towards discharge port, and the second lifting member 2 is by the constantly lifting of big particle diameter material and at the same time by big particle diameter material towards feed inlet
Promote.When barrel reversely rotates, it is necessary to which inlet port and outlet port are exchanged position, i.e. A represents the position where discharge port, B
Represent the position where feed inlet, in this case, the lower surface of the first projection 12 of the first lifting member 1 is the first pusher face
10, correspondingly, the lower surface of the second projection 22 of the second lifting member 2 is the second pusher face 20, thereby, it is possible to be accomplished that, when
By material from feed inlet be sent into barrel in when, with the rotation of barrel, the first lifting member 1 by small particle material constantly lifting and it is same
When small particle material is promoted towards discharge port, the second lifting member 2 is by the constantly lifting of big particle diameter material and at the same time by big particle diameter thing
Material is promoted towards feed inlet.
In addition, in embodiment provided by the invention, lifting member can in the form of any appropriate or need cloth
Put on the inner wall of rotating part 20.Preferably, in order to enable material can access in barrel fully crushes, can set
For：The axis direction of the lifting member along the barrel is arranged in rows on the inner wall of the whole rotating part 30.
In order to enable each row's lifting member can be lifted and promoted big particle diameter material to lift and push away at the same time small particle material, carry
High crushing efficiency and production efficiency, lifting member described in each row may each comprise multiple first lifting members 1 and multiple described
Second lifting member 2.
In addition, in lifting member described in same row, first lifting member 10 can replace cloth with second lifting member 2
Put, can be carried with the small particle material being broken into when big particle diameter material after the lifting of the first lifting member 10 by adjacent second
Part 2 is risen to push ahead.
In addition, in preferred embodiment provided by the invention, in two rows of lifting members of arbitrary neighborhood, in correspondence
Position on be respectively 1 and second lifting member 2 of the first lifting member, in this case, carried for the two rows of arbitrary neighborhood
Rise for part, in the position of close feed inlet, if first lifting member of a wherein row is the first lifting member 1, then another
First lifting member of row is then the second lifting member 2.Thus, on the whole inner wall of rotating part 30, the first lifting member 1 being capable of shape
Into substantially spiral shape, so as to be more advantageous to improving delivery rate of the small particle material from feed inlet to discharge port, life is improved
Produce efficiency.Similarly, on the whole inner wall of rotating part 30, the second lifting member page 2 can form substantially spiral shape, so that
It is more advantageous to pushing big particle diameter material towards feed inlet so as to the broken more abundant of big particle diameter material.
In addition, in preferred embodiment provided by the invention, in order to enable the speed of charging and discharging is roughly the same, from
And the constant of the amount of material in barrel is kept, and then ensure the crushing efficiency in barrel, the lifting member may be arranged to even number
Row.
Based on the above technical solutions, the present invention also provides a kind of horizontal grinding mill, wherein, the horizontal grinding mill
It can be semi-autogenous mill and include the barrel of horizontal grinding mill provided by the invention, in order to improve crushing efficiency, in the barrel
Multiple steel balls with different-diameter can be provided with, as medium, in the cyclic process that elevated part is lifted-left, energy
Enough auxiliary crush material.
In addition, the horizontal grinding mill can also be autogenous tumbling mill and include the barrel of horizontal grinding mill provided by the invention.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, a variety of letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (6)
1. a kind of barrel of horizontal grinding mill, which can rotate around the axis of its own, and the barrel includes rotating part
(30) and respectively it is located at the inlet port and outlet port at the both ends of rotating part (30) in the axial direction, the rotating part (30)
Lifting member is provided with inner wall, it is characterised in that the lifting member includes the first lifting member (1) and the second lifting member (2), described
First lifting member (1) has the first pusher face (10) for being used for that big particle diameter material to be pushed to the feed inlet, second lifting
Part (2) has the second pusher face (20) for being used for that small particle material to be pushed to the discharge port；The first pusher face (10) is
Plane, the scope of the angle α between the first pusher face (10) and the axis direction of the barrel are：0 ° of ＜ α≤45 °；And
And/or person, the second pusher face (20) is plane, between the second pusher face (20) and the axis direction of the barrel
The scope of angle β is：0 ° of ＜ β≤45 °；The axis direction of the lifting member along the barrel is arranged in rows at whole described time
On the inner wall of transfer part (30), in lifting member described in same row, first lifting member (1) is handed over second lifting member (2)
It is respectively first lifting member (1) and the on corresponding position in two rows of lifting members of arbitrary neighborhood for arrangement
Two lifting members (2).
2. the barrel of horizontal grinding mill according to claim 1, it is characterised in that first lifting member (1) includes using
Exist in the first liner plate portion (11) of installation and from prominent the first projection (12) in the first liner plate portion (11), first projection (12)
One end corresponding to the discharge port is extended to from one end corresponding to the feed inlet on the first liner plate portion (11), and
The side of first projection (12) is formed as the first pusher face (10)；Second lifting member (2) includes being used to install
The second liner plate portion (21) and from prominent the second projection (22) in the second liner plate portion (21), second projection (22) is described the
In two liner plate portions (21) one end corresponding to the discharge port, and described are extended to from one end corresponding to the feed inlet
The side of two projections (22) is formed as the second pusher face (20)；Wherein, first projection (12) is relative to described first
The projecting height in liner plate portion (11) is more than projecting height of second projection (22) relative to the second liner plate portion (21).
3. the barrel of horizontal grinding mill according to claim 2, it is characterised in that first projection (12) includes two
Side, two sides are symmetrical on the projected direction and extending direction formed plane of first projection (12)；Described second
Projection (22) includes two sides, projected direction and extending direction institute Cheng Ping of two sides on second projection (22)
Face is symmetrical.
4. the barrel of horizontal grinding mill according to claim 1, it is characterised in that lifting member described in each row includes more
A first lifting member (1) and multiple second lifting members (2), first lifting member (1) and second lifting member
(2) it is the wedge block with inclined plane, the inclined plane is for forming the first pusher face (10) or the second pusher face
(20)。
5. the barrel of horizontal grinding mill according to claim 1, it is characterised in that the lifting member is arranged as even rows.
6. a kind of horizontal grinding mill, it is characterised in that the horizontal grinding mill is for semi-autogenous mill and including according to claim 1-5
The barrel of horizontal grinding mill described in middle any one, is provided with multiple steel balls with different-diameter in the barrel；Alternatively,
The horizontal grinding mill is autogenous tumbling mill and includes the barrel of the horizontal grinding mill according to any one in claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610217506.7A CN105689068B (en) | 2016-04-08 | 2016-04-08 | The barrel and horizontal grinding mill of horizontal grinding mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610217506.7A CN105689068B (en) | 2016-04-08 | 2016-04-08 | The barrel and horizontal grinding mill of horizontal grinding mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105689068A CN105689068A (en) | 2016-06-22 |
| CN105689068B true CN105689068B (en) | 2018-05-08 |
Family
ID=56219535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610217506.7A Expired - Fee Related CN105689068B (en) | 2016-04-08 | 2016-04-08 | The barrel and horizontal grinding mill of horizontal grinding mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105689068B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101908364B1 (en) * | 2018-01-10 | 2018-10-18 | 윤병원 | Manufacturing apparatus of recycled aggregate and manufacturing method thereof |
| CN112090549B (en) * | 2020-07-22 | 2022-06-14 | 神华国能集团有限公司 | Coal mill |
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| CN204338258U (en) * | 2014-11-19 | 2015-05-20 | 河北展创矿山机械有限公司 | The shock-resistant shell liner of large-scale semi-autogenous mill |
| CN204768973U (en) * | 2015-07-02 | 2015-11-18 | 中国神华能源股份有限公司 | Welt and coal pulverizer in coal pulverizer |
| CN105214792A (en) * | 2015-11-04 | 2016-01-06 | 北方重工集团有限公司 | A kind of sectional curve type lifting rib liner plate |
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Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9757731B2 (en) * | 2013-09-11 | 2017-09-12 | Didion Manufacturing Company | Interlocking liner segments for a tumbling unit |
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2016
- 2016-04-08 CN CN201610217506.7A patent/CN105689068B/en not_active Expired - Fee Related
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| CN204338258U (en) * | 2014-11-19 | 2015-05-20 | 河北展创矿山机械有限公司 | The shock-resistant shell liner of large-scale semi-autogenous mill |
| CN204768973U (en) * | 2015-07-02 | 2015-11-18 | 中国神华能源股份有限公司 | Welt and coal pulverizer in coal pulverizer |
| CN105214792A (en) * | 2015-11-04 | 2016-01-06 | 北方重工集团有限公司 | A kind of sectional curve type lifting rib liner plate |
| CN205413215U (en) * | 2016-04-08 | 2016-08-03 | 攀钢集团矿业有限公司 | Feed cylinder and horizontal mill of horizontal mill |
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| Title |
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| CN105689068A (en) | 2016-06-22 |
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