CN212396897U - Ore grinding equipment - Google Patents
Ore grinding equipment Download PDFInfo
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- CN212396897U CN212396897U CN202021588017.0U CN202021588017U CN212396897U CN 212396897 U CN212396897 U CN 212396897U CN 202021588017 U CN202021588017 U CN 202021588017U CN 212396897 U CN212396897 U CN 212396897U
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Abstract
The utility model provides ore grinding equipment, which comprises a rotation central shaft, a grinding disc arranged on the rotation central shaft, a cylinder body wrapping the rotation central shaft and the grinding disc, and a feed box and a discharge pipe arranged at the two ends of the cylinder body, wherein the grinding disc is in a round cake shape, and 5-10 grinding discs are arranged on the rotation central shaft in series; lifting strips are uniformly arranged on two sides of the grinding disc at equal angles respectively, and the lifting strips on the two sides of the grinding disc are arranged in a mirror symmetry manner; the part of the grinding disc close to the rotating central shaft is provided with overflowing holes with the diameter of 50-100mm, and the overflowing holes are sequentially reduced in the direction from the feeding box to the discharging pipe; the grinding device with the grinding disc avoids short circuit of grinding, greatly increases the contact probability of mineral materials and grinding media, increases the grinding probability of the mineral materials, and creates favorable conditions for superfine grinding.
Description
Technical Field
The utility model relates to a grind ore technical field, more specifically relates to a grind mining ore grinding equipment.
Background
At present, the industries of metallurgy, mine, ceramics and the like in China are provided with grinding industries, the grinding industries aim to grind large materials, particularly in mine enterprises, almost every plant selection has an ore grinding process, and ore grinding equipment is widely researched due to the fact that the ore grinding equipment has the practical problems of large investment, high power consumption, large abrasion and the like.
At present, many ores, especially non-ferrous ores, the mineral embedded particle size of which reaches 5-15 microns, when traditional horizontal ore grinding equipment (ball mill, autogenous mill, semi-autogenous mill, etc.) carries out an ore grinding process, the lining plate is driven to rotate by the rotation of the shell cylinder, so that media and materials are lifted to achieve an ore grinding effect. The cylinder of the traditional ore grinding equipment has a critical rotating speed, when the critical rotating speed is reached, the mineral material to be ground does not fall down through the highest point of an ascending curve due to the fact that self gravity and centrifugal force are balanced, so that the mineral material to be ground is tightly attached to the surface of the lining of the cylinder and rotates along with the cylinder, and cannot be effectively ground, and the working rotating speed of the traditional ore grinding equipment is 60-80% of the critical rotating speed, so that the rotating speed of the traditional ore grinding equipment is limited by the critical rotating speed. When the mineral has an embedded particle size of less than 20 microns, the conventional ore grinding equipment cannot realize monomer dissociation of the mineral material to be ground, so that a lot of ultrafine particle embedded minerals cannot be effectively utilized.
Therefore, there is a need for an ore grinding apparatus capable of achieving fine grinding.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model aims at providing a grind equipment, especially provide a grind equipment including novel mill to the barrel that solves traditional grind equipment has critical rotation speed, when reacing critical rotation speed, treats the mineral material of grinding because self gravity and centrifugal force are balanced, through the peak of rising curve and not falling down, so that the mineral material of treating grinding hugs closely barrel inside lining surface and follows the barrel and rotate together, leads to the unable problem that effectively utilizes of the mineral that superfine grain inlayed the cloth.
The utility model provides an ore grinding equipment, which comprises a rotation central shaft, a grinding disc arranged on the rotation central shaft, a cylinder body wrapping the rotation central shaft and the grinding disc, and a feeding box and a discharging pipe arranged at the two ends of the cylinder body, wherein the grinding disc is in a round cake shape, and is characterized in that 5-10 grinding discs are arranged on the rotation central shaft in series;
lifting strips are uniformly arranged on two sides of the grinding disc at equal angles respectively, and the lifting strips on the two sides of the grinding disc are arranged in a mirror symmetry manner;
an overflowing hole with the diameter of 50-100mm is arranged at the part of the grinding disc close to the rotating central shaft, and the overflowing holes sequentially decrease in the direction from the feeding box to the discharging pipe;
the edge of the two sides of the grinding disc is symmetrically provided with circular check rings, and the check rings are uniformly provided with strip holes.
Preferably, the diameter of the grinding disc is 1.5-2.5 m.
Preferably, the width of the gap between the edge of the grinding disc and the cylinder is 10-20 mm.
Preferably, the interval between the grinding discs is 600-800 mm.
Preferably, the spacing between the retaining rings on adjacent grinding discs is 20-30 mm.
Preferably, the center of the overflowing hole is 1/4 times the radius of the grinding disc from the center of the central rotating shaft.
Preferably, the lifting strip is of a long strip shape, one end of the lifting strip is close to the overflowing hole, and the other end of the lifting strip is connected with the retainer ring.
Preferably, the thickness of the lifting strip perpendicular to one side of the grinding disc is 10-20 mm.
Preferably, the lifting strips and the retainer ring are made of tungsten carbide alloy.
Preferably, the device also comprises a driving device,
the driving motor of the driving device is a variable frequency motor.
From the above description, the utility model provides an ore grinding equipment establishes ties on the rotation center pin and is provided with 5-10 mill, the mill is close to the part of rotation center pin is provided with the diameter and is 50-100 mm's discharge orifice, still equally angle evenly is provided with the lifting strip respectively in the both sides of mill, form many cabins between 5-10 mill, combine the rotation of mill, the promotion of lifting strip and the blockking of retaining ring, realized the internal circulation of grinding medium in the cabin, thereby realized the grinding between mineral material and the medium under the stirring of medium, be provided with circular retaining ring on the edge of mill both sides symmetrically, and, evenly be provided with the rectangular hole on the retaining ring, when feeding ore or operating condition change, mineral material accessible rectangular hole gets into the space between retaining ring and the barrel, thereby to the adjacent ore grinding cabin, prevent the piling up of material in retaining ring department, increasing the pressure of the retainer ring; in addition, the part of the grinding disc close to the rotating central shaft is provided with an overflowing hole, so that the minerals can sequentially pass through different cabins from large to small, and the minerals can be sequentially ground from coarse to fine.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description and appended claims, taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 is a schematic cross-sectional view of an ore grinding apparatus according to an embodiment of the present invention;
fig. 2 is a top view of a grinding disc in a mineral grinding apparatus according to an embodiment of the present invention;
wherein the reference numerals include: 1. the device comprises a cylinder body, 2, a rotating central shaft, 3, a grinding disc, 4, a driving device, 5, a feeding box, 6, a discharging pipe, 7, an overflowing hole, 8, a lifting strip, 9, a check ring, 10 and a strip hole.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
Traditional ore grinding equipment such as ball mill when carrying out the ore grinding technology, thereby it is rotatory to drive the welt through the rotation of shell barrel and promote medium and material in order to reach the ore grinding effect, and the barrel of traditional ore grinding equipment has critical speed, and when reaching critical speed, the mineral material that treats grinding does not fall down through the peak of rising curve because self gravity and centrifugal force balance's reason to the mineral material that treats grinding hugs closely barrel inside lining surface and follows the barrel and rotates together, thereby leads to the mineral of a lot of superfine grain inlays the cloth to obtain effectual utilization.
To the above problem, the utility model provides a grind ore equipment, it is right below will combine the figure the utility model discloses a concrete embodiment carries out detailed description.
In order to illustrate the ore grinding device provided by the present invention, fig. 1 and fig. 2 respectively show the structure of the ore grinding device from different angles. Specifically, fig. 1 shows a cross-sectional structure of a grinding apparatus according to an embodiment of the present invention; fig. 2 shows a top view of a grinding apparatus according to an embodiment of the present invention.
The following description of the exemplary embodiment(s) is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
As shown in fig. 1, the utility model provides an ore grinding equipment, be in including rotation center pin 2, setting mill 3, parcel on the rotation center pin 2 with the barrel 1 of mill 3, and the setting is in the feed box 5 and the row of material pipe 6 at barrel 1 both ends, feed box 5 are used for putting in ore grinding medium and mineral material, arrange material pipe 6 and are used for getting rid of the mineral material after grinding, and feed box 5, row's material of material pipe 6 do not do the restriction, and feed box 5, row's material pipe 6 all adopt metal material in this embodiment.
As shown in fig. 1, the millstone 3 in the ore grinding equipment provided by the utility model is in a round cake shape, 5-10 millstones 3 are arranged on the rotation central shaft 2 in series, in the embodiment, the diameter of the millstone 3 is 1.5-2.5m, the terminal linear velocity of the millstone 3 is far higher than the rotation speed of the traditional ball mill cylinder, and the condition is created for the superfine dissociation of minerals by combining 5-10 millstones; the interval between the adjacent millstones 3 is 600-800mm, namely a plurality of cabins are formed between the adjacent millstones through the interval of 600-800mm, the internal circulation of the medium in the cabins is realized by combining the rotation of the millstones, so that the grinding between the mineral materials and the grinding medium is realized under the stirring of the medium, the ore grinding mode of the multi-cabin not only avoids the short circuit of the ore grinding, but also greatly increases the contact probability of the mineral materials and the grinding medium, increases the ore grinding probability of the mineral materials, and creates favorable conditions for ultra-fine grinding.
As shown in fig. 1, the utility model provides a grinding equipment still includes drive arrangement 4, in this grinding equipment, this drive arrangement 4 only drives the rotation of mill 3, and need not drive the barrel rotation of whole mill like traditional mill, thereby greatly reduced drive arrangement 4's drive load, the 4 energy consumptions of drive arrangement have been reduced, in order to make grinding equipment can adjust the rotational speed of mill according to mineral material's change, thereby realize the superfine grinding of mineral, in this embodiment, this drive arrangement 4's drive motor adopts inverter motor, this inverter motor adjusts the rotational speed of mill 3 according to mineral material's change more accurately, thereby can input sufficient and accurate drive power to the mill, make mill 3 grind can in time adjust according to mineral material's change, in order to realize the superfine grinding of mineral.
In the utility model discloses in the common embodiment that shows of fig. 1, fig. 2, the both sides of mill 3 are equallyd divide the angle respectively and evenly are provided with lifting strip 8, just, the 8 mirror symmetry settings of lifting strip of both sides, and this lifting strip 8 is rectangular type, and one end is close to overflowing hole 7, and retaining ring 9 is connected to the other end. In the cabin that adjacent mill formed, 8 promotion strips promote the grinding medium in the cabin to combine the rotation of mill 3 to make the grinding medium at the cabin inner loop, and then realize the grinding of mineral material and grinding medium under the stirring of grinding medium, wherein, the thickness that promotes strip 8 perpendicular to mill 3 one side is 10-20mm, promotes the material of strip 8 and does not do the restriction, for guaranteeing better promotion effect, adopts the promotion strip of tungsten carbide material in this embodiment.
In the embodiment shown in fig. 1 and 2 of the present invention, the part of the grinding disc 3 close to the rotation center shaft 2 is provided with the overflowing hole 7 with a diameter of 50-100mm, and the overflowing hole 7 is sequentially reduced from the feeding box 5 to the discharging pipe 6, and the overflowing hole 7 arranged on the grinding disc 3 is sequentially reduced from the feeding box 5 to the discharging pipe 6, so that the mineral materials can sequentially pass through different compartments through the overflowing hole which is sequentially reduced, the mineral materials are sequentially ground from coarse to fine, the specific size of the overflowing hole 7 is not limited, and the distance from the center of the overflowing hole 7 to the center of the rotation center shaft 2 is 1/4 of the radius length of the grinding disc 3 in this embodiment.
In the embodiment shown in fig. 1 and 2 of the present invention, circular retaining rings 9 are symmetrically disposed on the edges of both sides of the grinding disc 3, and the retaining rings 9 are uniformly provided with elongated holes 10, and the interval between adjacent retaining rings is 20-30 mm; the width of the gap between the edge of the grinding disc 3 and the cylinder 1 is 10-20mm, that is, the width of the gap between the check ring 9 and the cylinder 1 is 10-20mm, that is, another overflow channel for mineral materials is formed between the check ring 9 and the cylinder 1, when ore feeding or operation conditions are not ideal enough and internal circulation needs to be changed, the mineral materials can enter the gap between the check ring 9 and the cylinder 1 through the long-strip-shaped hole 10 and then go to an adjacent ore grinding cabin, so that the accumulation of the materials at the check ring 9 is prevented, the pressure of the check ring is reduced, and the damage to the check ring is prevented, wherein the material of the check ring 9 is not specifically limited, and in order to increase the wear resistance of the check ring 9 and avoid the problem of frequent replacement of the check ring 9 due to wear, in the embodiment, the check ring made of tungsten carbide alloy is.
In the embodiment shown in fig. 1 and 2 of the present invention, mineral materials fed into a feeding box 5 enter a first millstone 3, the millstone 3 rotates around a central axis 2 under the driving of a driving device 4, a lifting strip 8 arranged on the millstone 3 lifts grinding media in a cabin, so that the grinding media circulate in the cabin by combining the rotation of the millstone 3, further the grinding of the mineral materials and the grinding media is realized under the blocking of a retaining ring 9 and the stirring of the grinding media, the mineral materials ground to a certain degree enter a second millstone through a flow hole 7, and so on, when the mineral materials enter a last millstone 3 and are discharged from a discharge pipe 6 after final grinding, in addition, if the feeding or the operation conditions are not ideal enough, and when the internal circulation needs to be changed, the mineral materials can enter a gap between the retaining ring 9 and a cylinder body 1 through a strip hole 10 and then go to an adjacent millstone cabin for continuous grinding, and finally discharged through a discharge pipe 6.
According to the embodiment, the ore grinding equipment provided by the utility model has the advantages that 5-10 grinding discs are arranged to form a plurality of cabins, the lifting strips and the overflowing holes are arranged on the grinding discs, so that the ore grinding medium circulates in the cabins, the grinding between the mineral materials and the ore grinding medium is realized under the stirring of the medium, the mineral materials sequentially pass through different cabins from large to small, and the mineral is sequentially ground from coarse to fine; and by arranging the retaining ring with the strip holes, when the ore feeding or operating conditions are changed, materials can enter a gap between the retaining ring and the cylinder body through the strip holes, so that the materials go to the adjacent ore grinding cabins to be continuously ground.
The utility model provides an ore grinding equipment through above-mentioned specific structure, has not only effectively avoided the short circuit of ore grinding, greatly increased mineral material moreover and the contact probability of ore grinding medium, increased mineral material's ore grinding probability, created extremely favorable condition for superfine grinding.
The ore grinding apparatus according to the present invention is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the grinding apparatus of the present invention described above without departing from the scope of the invention. Therefore, the scope of the present invention should be determined by the content of the appended claims.
Claims (10)
1. An ore grinding device comprises a rotation center shaft, a grinding disc arranged on the rotation center shaft, a cylinder body wrapping the rotation center shaft and the grinding disc, a feeding box and a discharging pipe arranged at two ends of the cylinder body, wherein the grinding disc is in a round cake shape,
5-10 grinding discs are arranged on the rotating central shaft in series;
lifting strips are uniformly arranged on two sides of the grinding disc at equal angles respectively, and the lifting strips on the two sides of the grinding disc are arranged in a mirror symmetry manner;
an overflowing hole with the diameter of 50-100mm is arranged at the part of the grinding disc close to the rotating central shaft, and the overflowing holes sequentially decrease in the direction from the feeding box to the discharging pipe;
the edge of the two sides of the grinding disc is symmetrically provided with circular check rings, and the check rings are uniformly provided with strip holes.
2. The ore grinding apparatus according to claim 1,
the diameter of the grinding disc is 1.5-2.5 m.
3. The ore grinding apparatus according to claim 1,
the width of the gap between the edge of the grinding disc and the cylinder is 10-20 mm.
4. The ore grinding apparatus according to claim 1,
the interval between the grinding discs is 600 mm and 800 mm.
5. The ore grinding apparatus according to claim 1,
the distance between the check rings on the adjacent grinding discs is 20-30 mm.
6. The ore grinding apparatus according to claim 1,
the distance between the center of the overflowing hole and the center of the rotating central shaft is 1/4 of the radius length of the grinding disc.
7. The ore grinding apparatus according to claim 1,
the lifting strip is in a long strip shape, one end of the lifting strip is close to the overflowing hole, and the other end of the lifting strip is connected with the check ring.
8. The ore grinding apparatus according to claim 7,
the thickness of the lifting strip perpendicular to one side of the grinding disc is 10-20 mm.
9. The ore grinding apparatus according to any one of claims 1 to 8,
the lifting strips and the check ring are made of tungsten carbide alloy.
10. The ore grinding apparatus according to any one of claims 1 to 8, further comprising a driving device,
the driving motor of the driving device is a variable frequency motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021588017.0U CN212396897U (en) | 2020-08-04 | 2020-08-04 | Ore grinding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021588017.0U CN212396897U (en) | 2020-08-04 | 2020-08-04 | Ore grinding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212396897U true CN212396897U (en) | 2021-01-26 |
Family
ID=74371836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021588017.0U Active CN212396897U (en) | 2020-08-04 | 2020-08-04 | Ore grinding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212396897U (en) |
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2020
- 2020-08-04 CN CN202021588017.0U patent/CN212396897U/en active Active
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