CN211099368U - Ore discharge device for semi-autogenous and full-autogenous mills - Google Patents
Ore discharge device for semi-autogenous and full-autogenous mills Download PDFInfo
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- CN211099368U CN211099368U CN201921951304.0U CN201921951304U CN211099368U CN 211099368 U CN211099368 U CN 211099368U CN 201921951304 U CN201921951304 U CN 201921951304U CN 211099368 U CN211099368 U CN 211099368U
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- autogenous
- lifting
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- rib plates
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Abstract
The utility model discloses an ore discharge device for semi-autogenous and full autogenous mill for the ore discharge device of semi-autogenous and full autogenous mill, including the end cover, be fixed with circle lifting mechanism, well circle lifting mechanism, outer lane lifting mechanism in the second on the upper surface of this end cover. This an ore discharging device for partly from and full autogenous mill adopts grid board and/or the hard stone window of straight shape structure, and the upper surface of outer lane lifting mechanism adopts sharp linear outer lifting rib board and outside guide way to cooperate, but the inside of outer lane lifting mechanism adopts curved hidden lifting rib board and hidden guide way as supplementary, the advantage of straight shape and arc structure has been combined in other words, make the material that returns reduce relatively, and the material that returns obtains the speed reduction to the impact velocity of outer lane lifting mechanism, then under the prerequisite of ensureing to have higher work efficiency, the life of outer lane lifting mechanism has been promoted.
Description
Technical Field
The invention relates to the technical field of ore grinding equipment components, in particular to an ore discharge device for a semi-automatic and full-automatic grinding machine.
Background
In the prior art, ore grinding equipment such as a semi-autogenous mill and a full-autogenous mill mainly comprises a feeding chute, a feeding end, a cylinder, a discharging end, a discharging port and the like, ore grinding is carried out by taking a ground ore per se or adding a steel ball as a medium, and the ore generates impact and grinding stripping effects in the mill to be crushed and ground through the lifting effect of a lining plate of the cylinder. A certain amount of water is added while feeding the ore into the feeding chute, the water and the ground ore form ore pulp in the mill, and the ore pulp enters the outer ring lifter through the grid plate and/or the hard stone window at the discharge end. When the mill rotates, the outer ring lifter drives the ore pulp to be lifted together, and the ore pulp finally enters the discharge port to be discharged out of the ore grinding equipment through the middle ring lifter and the second middle ring lifter.
Wherein, the main constitution of semi-autogenous and full autogenous mill discharge end has: end cover, second centre circle riser, apron, outer lane riser, grid board and/or hard stone window etc.. The aforementioned components usually constitute a so-called mine discharge. The ore discharging device plays an especially important role in the ore discharging process of the mill. That is, the grid plate and/or the hard stone window determine the passing capacity of the ore pulp and the hard-to-grind ore in the forced ore discharging process of the mill. For the materials entering the lifter, the ore discharging channel formed by the outer ring lifter, the middle ring lifter and the second middle ring lifter determines the ore discharging efficiency.
The discharge device at the discharge end of the semi-autogenous and full-autogenous mills is a structure combined by a straight grid plate and/or a hard stone window and a lifter, as shown in figure 1. The structure has the defects of insufficient pulp lifting capacity and overlarge pulp return flow. The lifting capacity is insufficient, so that the ore pulp is discharged out of time easily, and particularly when the semi-automatic mill is in a working condition of difficult ore grinding, the filling rate of the mill can be increased rapidly due to a large amount of hard rocks and ore pulp which are not discharged in time, the power of the mill is increased, and the treatment capacity is reduced; the excessive return flow of the ore pulp causes the formation of an ore pulp pool in the semi-autogenous mill, which affects the grinding efficiency. In addition, the excessive return flow backflushs to the bottom of the ore pulp lifter, so that the service life of the lifter is shortened.
Another type of mineral discharge device commonly found at the discharge end of semi-autogenous and full autogenous mills is the structure of an arc grid plate and/or an enstating stone window and lifter combination, as shown in fig. 2. This kind of combination of arc grid plate and promotion structure compares straight grid plate and/or stubborn stone window and the combination of lifting mechanism, has improved the lifting efficiency of ore pulp, has reduced the flow that returns of ore pulp, nevertheless has the weak point: because the arc lifting strips on the grid plate improve the grinding retention time and the relative sliding speed of the ore and the steel balls on the grid plate, the abrasion of the grid plate with the structure is obviously aggravated. And the reduction of arc structure grid board and/or hard stone window life has increased the time of out-of-service maintenance, causes the increase of the operating rate reduction and spare parts cost.
Disclosure of Invention
The invention aims to provide a mine discharging device for a semi-automatic mill and a full-automatic mill, which has the characteristics of higher working efficiency and longer service life.
The technical scheme includes that the ore discharging device for the semi-autogenous and full-autogenous mills comprises an end cover, the ore discharging device diffuses outwards from the center of the end cover, a circle of second middle ring lifter, a circle of middle ring lifter and a circle of outer ring lifter are sequentially fixed on the upper surface of the end cover, the middle ring lifter comprises N middle ring units, the outer ring lifter comprises N outer ring units, the middle ring units and the outer ring units correspond to each other in pairs, 3 middle lifting rib plates extending from inside to outside are arranged on the upper surface of each middle ring unit, a middle guide groove is formed between all adjacent middle lifting rib plates, 3 outer lifting rib plates extending from inside to outside are arranged on the upper surface of each outer ring unit, an outer guide groove is formed between all adjacent outer lifting rib plates, the outer lifting rib plates and the middle lifting rib plates have the same extending direction and correspond to each other, when viewed from top to bottom, the outer lifting rib plates and the middle lifting rib plates are all hidden rib plates, the middle lifting rib plates and the middle lifting rib plates correspond to each other, when viewed from top of the middle lifting rib plates, the outer lifting grooves are located above the outer lifting grooves, the outer lifting rib plates are located at least two lifting grooves, the hidden rib plates, the outer lifting grooves, the hidden rib plates and the outer lifting rib plates of the outer lifting grooves, the outer lifting grooves are located above the corresponding hidden rib plates, the outer lifting grooves, the hidden rib plates, the outer lifting grooves, the hidden rib plates are located above the outer lifting grooves, the corresponding lifting grooves, the outer lifting grooves, the hidden rib plates, the outer lifting grooves, the hidden rib plates are located above the corresponding lifting grooves, the hidden rib plates, the outer lifting grooves, the corresponding lifting grooves, the hidden rib plates, the outer lifting grooves, the hidden rib plates are located on the hidden rib.
The outer ring unit is divided into 3 parts by 2 cutting surfaces passing through the center position of the end cover.
The bottom of the external guide groove is in an inclined plane shape.
The top surface of the hidden guide groove is in an inclined plane shape.
The pulp through hole is positioned on the lower side of the bottom of the corresponding external guide groove.
And a plurality of second middle lifting rib plates extending from inside to outside are arranged on the upper surface of the second middle ring lifter.
The plane or curved surface where the outer lifting rib plate and the hidden lifting rib plate are located is perpendicular to the upper surface of the end cover.
Compared with the prior art, the invention has the advantages that: the working efficiency is higher, the service life is longer. The ore discharge device for the semi-automatic and full-automatic mill adopts the grid plate and/or the hard stone window with the straight structure, the upper surface of the outer ring lifter is matched with the linear outer lifting rib plate and the outer guide groove, but the inner part of the outer ring lifter adopts the arc-shaped hidden lifting rib plate and the hidden guide groove as the auxiliary, which is equivalent to combining the advantages of the straight structure and the arc-shaped structure, so that the returned materials are relatively reduced, the impact speed of the returned materials on the outer ring lifter is reduced, and then the service life of the outer ring lifter is prolonged on the premise of ensuring higher working efficiency, especially the service life of the grid plate and/or the hard stone window with the straight structure is longer than that of the grid plate and/or the hard stone window with the arc-shaped structure.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a perspective view (in partial section) of a prior art mine discharge apparatus for the discharge end of a combined semi-autogenous and full autogenous mill of a straight grid plate and/or enstatite window and riser;
FIG. 2 is a perspective view (in partial section) of a prior art ore discharge device for the discharge end of a combined semi-autogenous and full autogenous mill with curved grating plates and/or enstatite windows and risers;
FIG. 3 is a perspective view (in partial section) of a mine drainage arrangement for semi-autogenous and full-autogenous mills in accordance with an embodiment of the present invention;
FIG. 4 is a perspective view of one of the outer ring units of FIG. 3 in cooperation with an associated grid plate and/or enstating stone window;
fig. 5 is a view from a-a of fig. 4.
In the figure:
10. an end cap;
20. a second middle ring lifter 21 and a second middle lifting rib plate;
30. a middle ring lifter 31, a middle ring unit 311, a middle lifting rib plate 312 and a middle guide groove;
40. the device comprises an outer ring lifter, 41, an outer ring unit, 411, an outer lifting rib plate, 412, an outer guide groove, 413, a sealing protrusion, 421, a hidden lifting rib plate, 4211, a transition protrusion, 4212, a bending protrusion, 422, a hidden guide groove, 43 and a pulp through hole;
50. an inner ring cover plate;
60. a middle ring cover plate;
70. grid and/or hardrock windows;
80. an inner ring lifter;
m, plane.
Detailed Description
Examples, see fig. 3-5: an ore discharge apparatus for semi-autogenous and full-autogenous mills includes an end cap 10. Typically, the end cap 10 is disk-shaped. The second middle ring lifter 20, the middle ring lifter 30, and the outer ring lifter 40 are fixed to the upper surface of the end cap 10 by screws, etc. in this order from the center of the end cap 10. Alternatively, the second middle ring lifter 20, the middle ring lifter 30, and the outer ring lifter 40 correspond to 3 concentric circular annular bands. The middle ring lifter 30 is constituted by N middle ring units 31, and the outer ring lifter 40 is constituted by N outer ring units 41. That is, the number of the middle ring unit 31 and the outer ring unit 41 is N, and N should be an integer not less than 2. Thus, the middle ring unit 31 and the outer ring unit 41 correspond two by two. The upper surface of each middle ring unit 31 is provided with 3 middle lifting rib plates 311 extending from inside to outside, and a middle guide groove 312 is formed between all the adjacent middle lifting rib plates 311; each outer ring unit 41 has 3 outer lifters 411 extending from the inside to the outside on the upper surface thereof, and an outer guide groove 412 is formed between all adjacent outer lifters 411. The adjacent 2 outer lifting rib plates 411 or the adjacent 2 middle lifting rib plates 311 obviously also include the adjacent 2 outer lifting rib plates 411 or the adjacent 2 middle lifting rib plates 311 which are not located on the same outer ring unit 41 or inner ring unit 31. The extension directions of the outer lifting rib 411 and the middle lifting rib 311 are the same and correspond to each other. That is, the outer lifting rib 411 and the middle lifting rib 311 are both linear when viewed from top to bottom, so that the corresponding outer lifting rib 411 and the middle lifting rib 311 are located on the same straight line, and the straight line preferably passes through the center or axis of the end cover 10. Accordingly, the middle guide groove 312 and the outer guide groove 412 correspond two by two to be aligned. The outer end opening of the outer guide groove 412 is closed by a closing protrusion 413.
An inner ring cover plate 50 is fixed above the second middle ring lifter 20; a middle ring cover plate 60 is fixed above the middle ring lifter 30; a grid plate and/or a hard stone window 70 is fixed above the outer ring lifter 40. The grid plate and/or the enstating stone window 70 are straight grid plates and/or enstating stone windows 70.
Further speaking:
the outer ring unit 41 is provided with hidden guide grooves 422 which are equal in number to the outer guide grooves 412 and are arranged below the outer guide grooves 412, and adjacent 2 hidden guide grooves 422 are separated by a hidden lifting rib 421, that is, the hidden guide grooves 422 and the hidden lifting rib 421 are both N, the inner ends of the hidden guide grooves 422 are communicated with the outer ends of the corresponding middle guide grooves 312 (the inner end refers to one end close to the center of the end cover, and the outer end refers to one end far away from the center of the end cover).
Optimizing:
for ease of preparation, the outer ring unit 41 is divided into 3 parts equally by 2 cutting planes M passing through the center position of the end cap 10.
In order to facilitate feeding and improve efficiency, the bottom of the outer guide groove 412 is inclined; the top surface of the hidden guide groove 422 is in an inclined plane shape; the slurry passage holes 43 are located at a relatively lower side of the bottom of the corresponding outer guide groove 412.
The upper surface of the second middle ring lifter 20 is provided with a plurality of second middle lifting rib plates 21 extending from the inside to the outside. Preferably, the second middle lifting rib plate 21 corresponds to the middle lifting rib plate 311, and the corresponding second middle lifting rib plate 21 and the middle lifting rib plate 311 are located on the same straight line.
The plane or curved surface of the outer lifting rib 411 and the hidden lifting rib 421 is perpendicular to the upper surface of the end cover 10, so as to ensure that the processing and the stress distribution are uniform.
It should be noted that:
the end cover 10 may also be provided with an inner ring lifter 80 on the inside of the second middle lifting rib 21 in a conventional manner. That is, in essence, a 4-turn lift structure on the end cap 10. The upper surface of the inner ring lifter 80 may be provided with only a plurality of lifting rib plates, but does not necessarily correspond to the remaining second middle lifting rib plates 21 and the like.
In conclusion, the outer ring lifter of the ore discharge device for the semi-autogenous and full autogenous mills, disclosed by the invention, is equivalent to form a double-layer structure, combines the advantages of the conventional straight and arc structures, and prolongs the service life on the premise of ensuring higher working efficiency.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The ore discharging device for the semi-autogenous and full-autogenous mills comprises an end cover (10), the ore discharging device diffuses outwards from the center of the end cover (10), a circle of second middle ring lifter (20), a circle of middle ring lifter (30) and a circle of outer ring lifter (40) are sequentially fixed on the upper surface of the end cover (10), the middle ring lifter (30) consists of N middle ring units (31), the outer ring lifter (40) consists of N outer ring units (41), the middle ring units (31) and the outer ring units (41) correspond to each other in pairs, 3 middle lifting rib plates (311) extending from inside to outside are arranged on the upper surface of each middle ring unit (31), a middle guide groove (312) is formed between all adjacent middle lifting rib plates (311), 3 outer lifting rib plates (411) extending from inside to outside are arranged on the upper surface of each outer ring unit (41), and corresponding outer lifting rib plates (411) are formed between all adjacent outer lifting rib plates (411) and are respectively corresponding to an outer lifting rib plate (411) which is equal to the inner end of a hidden lifting rib plate (311), the hidden rib plate (1) and an outer lifting rib plate (1) which are located above the middle lifting groove (1) and an outer lifting groove (1), the hidden rib plate (1), the inner lifting groove (1) and the inner end of the hidden rib plate (1), the hidden rib plate (1) and the hidden rib plate (1) are located above the hidden rib plates, the hidden rib plates (311), the outer lifting groove (311), the hidden rib plates (311) and the inner end of the hidden rib plates (21) and the hidden rib plates, the outer lifting groove (21), the hidden rib plates, the lifting groove (21) of the hidden rib plates, the lifting groove, the hidden rib plates, the lifting rib plates, the hidden rib plates are located on the lifting groove, the hidden rib plates.
2. The ore discharging device for semi-autogenous and full-autogenous mills according to claim 1, characterized in that: the outer ring unit (41) is divided into 3 parts by 2 cutting surfaces (M) passing through the center position of the end cover (10).
3. The ore discharging device for semi-autogenous and full-autogenous mills according to claim 1, characterized in that: the bottom of the outer guide groove (412) is in a slope shape.
4. The ore discharging device for semi-autogenous and full-autogenous mills according to claim 3, characterized in that: the top surface of the hidden guide groove (422) is in an inclined plane shape.
5. The ore discharging device for semi-autogenous and full-autogenous mills according to claim 3, characterized in that: the pulp through hole (43) is positioned at the lower side of the bottom of the corresponding outer guide groove (412).
6. The ore discharging device for semi-autogenous and full-autogenous mills according to claim 1, characterized in that: a plurality of second middle lifting rib plates (21) extending from inside to outside are arranged on the upper surface of the second middle ring lifter (20).
7. The ore discharging device for semi-autogenous and full-autogenous mills according to claim 1, characterized in that: the plane or curved surface of the outer lifting rib plate (411) and the hidden lifting rib plate (421) is perpendicular to the upper surface of the end cover (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921951304.0U CN211099368U (en) | 2019-11-12 | 2019-11-12 | Ore discharge device for semi-autogenous and full-autogenous mills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921951304.0U CN211099368U (en) | 2019-11-12 | 2019-11-12 | Ore discharge device for semi-autogenous and full-autogenous mills |
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| Publication Number | Publication Date |
|---|---|
| CN211099368U true CN211099368U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921951304.0U Withdrawn - After Issue CN211099368U (en) | 2019-11-12 | 2019-11-12 | Ore discharge device for semi-autogenous and full-autogenous mills |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110694752A (en) * | 2019-11-12 | 2020-01-17 | 江西耐普矿机新材料股份有限公司 | Ore discharge device for semi-autogenous and full-autogenous mills |
-
2019
- 2019-11-12 CN CN201921951304.0U patent/CN211099368U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110694752A (en) * | 2019-11-12 | 2020-01-17 | 江西耐普矿机新材料股份有限公司 | Ore discharge device for semi-autogenous and full-autogenous mills |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 334000 No.52 Xingyuan Avenue, Shangrao economic and Technological Development Zone, Shangrao City, Jiangxi Province Patentee after: Jiangxi Naipu Mining Machinery Co.,Ltd. Address before: 330000 No.52 Xingyuan Avenue, Shangrao economic and Technological Development Zone, Shangrao City, Jiangxi Province Patentee before: JIANGXI NAIPU MINING MACHINERY AND NEW MATERIALS Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 334000 No. 18 Jili Avenue, Shangrao economic and Technological Development Zone, Shangrao City, Jiangxi Province Patentee after: Jiangxi Naipu Mining Machinery Co.,Ltd. Address before: No.52 Xingyuan Avenue, Shangrao economic and Technological Development Zone, Shangrao City, Jiangxi Province Patentee before: Jiangxi Naipu Mining Machinery Co.,Ltd. |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200728 Effective date of abandoning: 20230523 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200728 Effective date of abandoning: 20230523 |