CN211586866U - Large-scale graphite ore dressing stirring mill - Google Patents
Large-scale graphite ore dressing stirring mill Download PDFInfo
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- CN211586866U CN211586866U CN201922033337.3U CN201922033337U CN211586866U CN 211586866 U CN211586866 U CN 211586866U CN 201922033337 U CN201922033337 U CN 201922033337U CN 211586866 U CN211586866 U CN 211586866U
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Abstract
The utility model discloses a large-scale graphite ore dressing stirring mill, which relates to the field of graphite ore dressing equipment and comprises a mill bin, wherein the top of the mill bin is provided with a guide ball cone with an inverted cone with an opening at the bottom, and a plurality of pressing spherical rotary bodies are arranged on the downward surface of the guide ball cone; an operation section is arranged on the grinding bin, a ball feeding hopper and a discharge port are arranged on the side edge of the operation section, and a power device is arranged on the upper part of the operation section to drive a stirring shaft provided with an impeller to rotate; the bottom of the grinding bin is provided with a feeding hole and is also provided with a check valve for control. The medium in the mill can move mainly by mutual shearing/friction, and the shearing force can better act between graphite layers, so that scales are stripped to remove impurities and fall off, and the damage to the scale structure caused by the action of the surface of the graphite scales is avoided.
Description
Technical Field
The utility model relates to a graphite mineral processing equipment field especially relates to a big scale graphite ore dressing stirring mill.
Background
Along with the development and utilization of graphite resources, the mineral processing technology of graphite is higher and higher, and the key point of the mineral processing of flake graphite is to protect large flakes from being damaged as much as possible. However, the structure of the graphite flake is seriously damaged in the regrinding process, and the flake impurities are difficult to peel off, so that the grinding and floating process is long. The method tries to explore how to ensure that the graphite flakes are not damaged as much as possible in ore grinding, and improves the yield of large graphite flakes and the quality of concentrate.
The key grinding equipment for extracting carbon from large-scale graphite is a ball mill, and the analysis of the motion of grinding media of the ball mill shows that the motion of media balls is mainly based on impact collision on the wall of the mill cylinder, and the impact force of grinding media is not easy to act between layers of scales, so that the impact action can occur on the scales, and the surfaces of the graphite scales are cracked or even damaged. Therefore, the graphite flake peeling equipment is systematically researched.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a large scale graphite ore dressing stirring mill can make in the mill medium motion use mutual shearing/friction to be the main, and shearing force can be better from taking place the effect between graphite layer and the layer, makes the scale peel off and comes impurity to drop, has avoided from graphite scale surface effect and destroys the scale structure.
In order to solve the problems, the utility model discloses a large-scale graphite ore dressing stirring mill, which comprises a milling bin, wherein the top of the milling bin is provided with an inverted cone-shaped ball guide cone with an opening at the bottom, and a plurality of ball pressing rotary bodies are arranged on the downward surface of the ball guide cone; an operation section is arranged on the grinding bin, a ball feeding hopper and a discharge port are arranged on the side edge of the operation section, and a power device is arranged on the upper part of the operation section to drive a stirring shaft provided with an impeller to rotate; the bottom of the grinding bin is provided with a feeding hole and is also provided with a check valve for control.
Further, wherein the bottom end of the grinding bin is also provided with a base.
Further, the power device comprises a motor which drives the stirring shaft to rotate through the transmission part.
Further wherein the impeller is provided with at least one layer.
The beneficial effects of the utility model reside in that:
the low-carbon large-scale graphite enters the stirring mill through a stirring mill feed inlet, and the stirring mill medium ball adopts a phi 10-12mm ceramic ball, under the action of centrifugal force generated by impeller rotation, the ceramic ball and graphite ore pulp upwards stretch along the cylinder wall in a grinding area, and collide up and down under the action of downward flow guide of the ball pressing rotary body, so that the material density is increased, the synchronous rotation of the ceramic ball and the ore pulp is disturbed, the ceramic ball is scurry up and down, and the gangue impurities mixed with the scales are better stripped. Under centrifugal rotation, the heavy particles and the ceramic balls lean against the wall of the cylinder. The graphite ore pulp overflows upwards from the center of the ball guide cone under the action of the direct pressure at the lower part of the ball guide cone, the area of a cone hole is increased, the overflow pressure is reduced, and a small amount of ceramic balls carried in the ore pulp fall back to a grinding area from the center. Because the vertical stirring mill adopts the ceramic balls as the medium balls, the probability of mutual collision and fleeing of the balls is very high, but the interaction force is not large, the scale impurities can be stripped, the scale cannot be broken, the large graphite scale is well protected, the scale is stripped to remove the impurities and fall off, and the damage to the scale structure caused by the surface action of the graphite scale is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a structural view of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
the large-scale graphite ore dressing stirring mill shown in fig. 1 is characterized in that: the ball mill comprises a milling bin 1, wherein the top of the milling bin is provided with an inverted-cone-shaped ball guide cone 2 with an opening at the bottom, and a plurality of ball pressing rotary bodies 3 are arranged on the downward surface of the ball guide cone; an operation section 4 is arranged on the grinding bin, a ball feeding hopper 5 and a discharge port 6 are arranged on the side edge of the operation section, and a power device 7 is arranged on the upper part of the operation section to drive a stirring shaft 9 provided with an impeller 8 to rotate; the bottom of the milling bin is provided with a feeding hole 10 and a check valve 11 for control. Wherein the bottom end of the grinding bin is also provided with a base 12. The power device 7 comprises a motor 13 which drives the stirring shaft 9 to rotate through a transmission part 14. Wherein the impeller 8 is provided with four layers.
For a flake graphite sample with a Maxacan grade of 12%, 1 roughing, 1 middling and 4 ore grinding and 5 fine sorting are adopted, and industrial tests can obtain excellent indexes of 94% grade, 89% recovery rate and 10.6% yield; the positive target ratio of the concentrate product is 63 percent, which is far larger than 33 percent of tests of the traditional ball mill and the vibration mill, and the one-time grinding and sorting process is shortened. The vertical stirring mill is used for 3-5 sections of regrinding, and basically can ensure that the graphite flake impurities are stripped.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (4)
1. The utility model provides a large scale graphite ore dressing stirring mill which characterized in that: the ball mill comprises a milling bin (1), wherein the top of the milling bin is provided with an inverted-cone-shaped ball guide cone (2) with an opening at the bottom, and a plurality of ball pressing rotary bodies (3) are arranged on the lower surface of the ball guide cone; an operation section (4) is arranged on the grinding bin, a ball feeding hopper (5) and a discharge hole (6) are arranged on the side edge of the operation section, and a power device (7) is arranged on the upper part of the operation section to drive a stirring shaft (9) provided with an impeller (8) to rotate; the bottom of the milling bin is provided with a feeding hole (10) and a check valve (11) for control.
2. The large flake graphite mineral processing stirring mill according to claim 1, characterized in that: the bottom end of the grinding bin is also provided with a base (12).
3. The large flake graphite mineral processing stirring mill according to claim 1, characterized in that: the power device (7) comprises a motor (13) which drives the stirring shaft (9) to rotate through a transmission part (14).
4. The large flake graphite mineral processing stirring mill according to claim 1, characterized in that: the impeller (8) is provided with at least one layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922033337.3U CN211586866U (en) | 2019-11-22 | 2019-11-22 | Large-scale graphite ore dressing stirring mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922033337.3U CN211586866U (en) | 2019-11-22 | 2019-11-22 | Large-scale graphite ore dressing stirring mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211586866U true CN211586866U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922033337.3U Active CN211586866U (en) | 2019-11-22 | 2019-11-22 | Large-scale graphite ore dressing stirring mill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113461004A (en) * | 2021-06-10 | 2021-10-01 | 山东鑫海矿业技术装备股份有限公司 | Vertical graphite stripping equipment |
-
2019
- 2019-11-22 CN CN201922033337.3U patent/CN211586866U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113461004A (en) * | 2021-06-10 | 2021-10-01 | 山东鑫海矿业技术装备股份有限公司 | Vertical graphite stripping equipment |
| CN113461004B (en) * | 2021-06-10 | 2023-08-04 | 山东鑫海矿业技术装备股份有限公司 | Vertical graphite stripping equipment |
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