Graphite product ball mill

Abstract

The utility model relates to a ball mill for graphite products. The ball mill comprises a supporting rack, a rotating grinding cylinder, a driving device for driving the grinding cylinder to rotate, a feeder for charging the grinding cylinder, a discharger for discharging materials and a grinding ball, a plurality of lining plate units which are arranged at intervals are arranged on the inner wall of the grinding cylinder; a plurality of screens for communicating an inner cavity of the grinding cylinder with the outside are arranged on the side wall of the grinding cylinder spaced by the two adjacent lining plate units; a plurality of receiving bins for receiving the graphite powder screened by the screen are arranged on the outer wall of the grinding cylinder; an outlet is formed in the side, close to the discharging device, of the material receiving bin. According to the utility model, the structural design is reasonable, through the design of the screen positioned between the lining plate units, under the condition of ensuring normal grinding of materials, pre-pulverized graphite powder is quickly separated, and the risk that the crystal structure of part of graphite powder is changed and the quality of finished products is influenced due to repeated impact of grinding balls on the powder in the grinding process is reduced.

Description

Technical Field

[0001] The utility model relates to the field of graphite product production, in particular to a graphite product ball mill. Background Art

[0002] Ball mill is a key equipment for crushing materials after they are crushed. Its main principle is to provide centrifugal force through the rotating grinding cylinder, so that the grinding medium inside, generally grinding steel balls, can crush the graphite material through the impact force of falling. It is often used in graphite beneficiation operations. The Chinese patent document with authorization announcement number CN220328854U discloses a ball mill for graphene production, including a base, a support frame is slidably mounted on the upper surface of the base, a crushing box is fixedly mounted on the upper surface of the support frame, and a discharge pipe is fixedly mounted on the bottom end of the crushing box; two support plates are slidably mounted on the upper surface of the base, a ball mill tube is detachably mounted between the support plates, a feed pipe is rotatably mounted on one end of the ball mill tube, and the end of the feed pipe away from the ball mill tube is threadedly connected to the discharge pipe. This application drives the two crushing rollers to rotate in opposite directions through a motor, so that the crushing rollers crush the raw materials once, and the size of the raw materials is screened through the once crushing, so that the size of the raw materials entering the ball mill tube is similar, thereby improving the efficiency of ball milling. This application drives the support plate to move through a rotating rod, so that the support plate can be adjusted according to the length of different ball mill tubes, and the ball mill tube is limited by a limit plate, which is convenient for disassembly and replacement of the ball mill tube. However, the existing ball mill repeatedly grinds the graphite ore in a scattered manner during use. After part of the graphite ore is ground into powder, it is still hammered by the grinding balls during the transmission process. This can easily cause part of the graphite powder to be repeatedly hammered by the grinding balls for a long time, causing changes in the crystal structure and affecting the performance of the finished product. Utility Model Content

[0003] The purpose of the utility model is to provide a ball mill for graphite products, which is used to solve the problem that the graphite powder successfully ground by the existing ball mill cannot be discharged in time during use, and some graphite powder is easily repeatedly hit by the grinding balls for a long time, causing changes in the crystal structure and affecting the performance of the finished product.

[0004] In order to solve the above problems, the utility model provides a ball mill for graphite products, comprising a supporting frame, a rotating grinding cylinder, a driving device for driving the grinding cylinder to rotate, a feeder for charging the grinding cylinder, a discharger for discharging the material, and grinding balls; a plurality of lining units arranged at intervals are provided on the inner wall of the grinding cylinder; a plurality of screens connecting the inner cavity thereof with the outside are provided on the side wall of the grinding cylinder separated by two adjacent lining units; a plurality of receiving bins for receiving the screens to screen the graphite powder are provided on the outer wall of the grinding cylinder; an outlet is provided on the side of the receiving bin close to the discharger.

[0005] The graphite product ball mill provided by the utility model also has the following technical features:

[0006] Furthermore, the support frame is provided with a gathering bin for discharging powder through a gathering outlet; the outer wall of the grinding cylinder is provided with a gathering ring that connects multiple outlets and is rotatably sealed with the gathering bin; the lower part of the side wall of the gathering bin away from the gathering ring is provided with a discharge port for discharging powder.

[0007] Furthermore, the gathering ring is provided with a plurality of scrapers cantilevered toward the side wall close to the discharge port; the plurality of scrapers are arranged at intervals.

[0008] Furthermore, the distance between two adjacent liner units is smaller than the radius of the grinding ball.

[0009] Furthermore, the bottom plate of the receiving bin away from the screen is tilted along the direction close to the discharger toward the direction away from the screen.

[0010] Furthermore, the width of the receiving bin is 2 to 3 times the distance between two adjacent lining units.

[0011] The utility model has the following beneficial effects: the utility model has a reasonable structural design and a simple structure. By designing a screen located between the liner units, the pre-powdered graphite powder can be quickly separated while ensuring normal grinding of the material, thereby reducing the risk of repeated impact of the grinding balls on the powder during the grinding process, causing changes in the crystal structure of some graphite powder and affecting the quality of the finished product; by designing a receiving bin with a width greater than the distance between the two liner units, it can ensure that the powdered material is fully collected, and the powder is retained during the flipping process, thereby reducing the risk of the powder re-entering the grinding cylinder in large quantities through the screen during the flipping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0013] Figure 2 This is a cross-sectional view of the structure of an embodiment of the utility model;

[0014] Figure 3 This is a cross-sectional view of the structure of an embodiment of the utility model;

[0015] Figure 4 This is a schematic diagram of the internal structure of an embodiment of the present utility model;

[0016] In the figure: 1-support frame, 2-grinding cylinder, 21-feeder, 22-discharger, 23-screen, 3-driving device, 4-lining unit, 5-receiving silo, 51-outlet, 52-gathering ring, 521-scraper, 6-gathering silo, 61-discharge port. DETAILED DESCRIPTION

[0017] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0018] like Figures 1 to 4 One embodiment of the graphite product ball mill of the present invention shown includes a support frame 1, a rotating grinding drum 2, a driving device 3 for driving the grinding drum 2 to rotate, a feeder 21 for charging the grinding drum 2, a discharger 22 for discharging the material, and grinding balls. The inner wall of the grinding drum 2 is provided with a plurality of spaced liner units 4; the side wall of the grinding drum 2, separated by two adjacent liner units 4, is provided with a plurality of screens 23 connecting its inner cavity with the outside world; the outer wall of the grinding drum 2 is provided with a plurality of receiving bins 5 for receiving the screens 23 to screen the graphite powder; the receiving bin 5 is provided with an outlet 51 on the side close to the discharger 22. By designing the screens between the liner units, the pre-pulverized graphite powder can be quickly separated while ensuring normal grinding of the material, thereby reducing the risk of repeated impact of the grinding balls on the powder during the grinding process, destroying the crystal structure of part of the graphite powder, and affecting the quality of the finished product.

[0019] Specifically, the support frame 1 is equipped with a collection silo 6 through which the powder is discharged through a collection outlet 51. A collection ring 52 is provided on the outer wall of the grinding cylinder 2, connecting the multiple outlets 51 and rotating in a sealed manner with the collection silo 6. A discharge port 61 is provided at the lower portion of the sidewall of the collection silo 6, away from the collection ring 52. The installation of a rotating, sealed collection silo at the outlet 51 intercepts and collects the discharged graphite powder, improving collection efficiency and reducing the risk of graphite powder scattering and impacting the work environment.

[0020] Specifically, the gathering ring 52 is provided with a plurality of scrapers 521 cantilevered toward the side wall close to the discharge port; the plurality of scrapers 521 are arranged at intervals.

[0021] Specifically, the distance between two adjacent lining plate units 4 is smaller than the radius of the grinding ball.

[0022] Specifically, the bottom plate of the receiving bin 5 away from the screen 23 is tilted along the direction close to the discharger 22 toward the direction away from the screen 23.

[0023] Specifically, the width of the receiving bin 5 is 2 to 3 times the distance between two adjacent liner units 4. By designing a receiving bin with a width greater than the distance between the two liner units, the powdered material is fully collected and retained during the turning process, reducing the risk of powder re-entering the grinding cylinder through the screen during the turning process.

[0024] Working principle: The staff starts the equipment, and the graphite ore to be ground enters the inner cavity of the grinding cylinder 2 from the feeder 21, and is collided and ground by the rolling grinding balls. The lining unit 4 composed of multiple lining plates receives the grinding balls and materials, and the lining units 4 arranged at intervals receive the grinding balls during the grinding process, reducing the risk of direct impact on the screen 23, and ensuring the service life of the screen 23. The powdered finished product near one end of the feeder 21 enters the receiving bin 5 from the screen 23 during the flipping of the grinding cylinder 2 for transportation. During the flipping of the grinding cylinder 2, a large amount of powder is transported in the receiving bin 5 along the direction 51 near the outlet, and the powder is isolated and transported, which effectively reduces the risk of multiple impacts of the grinding balls on the powder and destruction of the powder crystal structure. The powder pre-selected and retained in the receiving bin 5 is transported to the outlet 51 during the flipping of the grinding cylinder 2 and discharged into the gathering ring 52, and is discharged from the discharge port 61 under the action of the scraper 521 for collection or transportation.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A graphite product ball mill, comprising a support frame (1), a rotating grinding cylinder (2), a driving device (3) for driving the grinding cylinder (2) to rotate, a feeder (21) for feeding material into the grinding cylinder (2), a discharger (22) for discharging the material, and grinding balls, characterized in that: The inner wall of the grinding cylinder (2) is provided with a plurality of spaced lining units (4); the side wall of the grinding cylinder (2) spaced between two adjacent lining units (4) is provided with a plurality of screens (23) for connecting its inner cavity with the outside world; the outer wall of the grinding cylinder (2) is provided with a plurality of receiving bins (5) for receiving the screens (23) for screening graphite powder; the receiving bin (5) is provided with an outlet (51) on a side close to the discharger (22).

2. The graphite product ball mill according to claim 1, characterized in that: The support frame (1) is provided with a gathering bin (6) for discharging powdered materials through a gathering outlet (51); an gathering ring (52) is provided on the outer wall of the grinding cylinder (2), which is connected to the plurality of the outlets (51) and is rotatably sealed with the gathering bin (6); and a discharge port (61) is provided on the lower portion of the side wall of the gathering bin (6) away from the gathering ring (52) for discharging powdered materials.

3. The graphite product ball mill according to claim 2, characterized in that: The gathering ring (52) is provided with a plurality of scrapers (521) cantilevered toward the side wall close to the discharge port; the plurality of scrapers (521) are arranged at intervals.

4. The graphite product ball mill according to claim 1, characterized in that: The distance between two adjacent lining plate units (4) is smaller than the radius of the grinding ball.

5. The graphite product ball mill according to claim 1, characterized in that: The bottom plate of the receiving bin (5) away from the screen (23) is tilted in a direction from close to the discharger (22) to away from the screen (23).

6. The graphite product ball mill according to claim 1, characterized in that: The width of the receiving bin (5) is 2 to 3 times the distance between two adjacent lining plate units (4).

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