A ball mill for graphite

Abstract

The utility model relates to graphite processing technical field, and the specific field is a ball mill for graphite, in order to solve the ball mill of prior art in ball mill, the single direction of steel ball throwing, falling, ball mill efficiency still has the space technology problem of further promotion, include: ball mill jar, lining plate, spiral rib, feed plate, support, feeding mechanism, bearing frame, gear ring, gear, pivot, filter ball mechanism, when ball milling, the same conveying direction of adjacent ball mill jar is controlled through two different pivots, because the spiral direction of adjacent spiral rib is opposite, so the adjacent ball mill jar is opposite, when raw materials advance along the conveying direction of ball mill jar, alternately be thrown by two different direction steel balls, the ball mill effect is better, greatly promotes the ball mill efficiency, because the filling rate of steel ball in ball mill jar is 30% 50%, under the interaction between centrifugal force and steel ball, the steel ball will not be pushed by spiral rib, but will be distributed in ball mill jar, guarantees the ball mill effect.

Description

Technical Field

[0001] This utility model relates to the field of graphite processing technology, specifically to a ball mill for graphite. Background Technology

[0002] Graphite, a non-metallic material with unique physicochemical properties, is widely used in batteries, lubrication, and sealing, and ball mills are key equipment in its processing. A graphite ball mill is a mechanical device that uses the impact, friction, and shearing action of grinding media to crush, refine, and surface-treat graphite raw materials. Essentially, it achieves the physical processing of graphite materials through energy conversion (motor kinetic energy → media mechanical energy → particle crushing energy).

[0003] Ball mills control the grinding media to move to a high point with the cylinder and then fall, impacting graphite particles. This is suitable for coarse crushing. The relative movement between the media and between the media and the cylinder wall creates friction, which peels off the layered structure of graphite, thus achieving fine grinding.

[0004] In existing ball mills, the steel balls are thrown up and fall in a single direction during ball milling, leaving room for further improvement in ball milling efficiency. Utility Model Content

[0005] This invention addresses the technical problem in existing ball mills where the steel balls are thrown up and fall in a single direction during ball milling, leaving room for further improvement in ball milling efficiency. Therefore, this invention provides a ball mill for graphite.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a ball mill for graphite, comprising: a ball mill cylinder, multiple ball mill cylinders arranged concentrically with equal inner diameters, adjacent ball mill cylinders being rotatably connected, a liner plate connected inside the ball mill cylinder, spiral ribs connected to the liner plate, adjacent spiral ribs having opposite spiral directions, a feed plate rotatably connected and fastened to the outer end of the outermost ball mill cylinder, another outermost ball mill cylinder being connected to a filter ball mechanism, the filter ball mechanism being able to retain steel balls and filter out graphite, the feed plate being connected inside a support frame, the feed plate being connected to the feed mechanism, the ball mill cylinder being rotatably connected inside a bearing frame, each ball mill cylinder having a toothed ring connected to its exterior, each toothed ring being meshed with a gear, the gears of adjacent toothed rings being connected to two different rotating shafts, the rotating shafts being rotatably connected to the support frame and the bearing frame, the two rotating shafts being controlled by two independent power sources.

[0007] Preferably, the feeding mechanism includes a feeding cylinder, which is connected to the feeding plate hole. A hopper is connected to the upper part of the feeding cylinder. The feeding cylinder is rotatably connected to the conveying shaft inside the end side wall. A spiral blade is connected to the conveying shaft inside the feeding cylinder.

[0008] Preferably, the filter ball mechanism includes a support lug connected to the outer end of the outermost ball mill cylinder. The support lug is connected to the filter plate by bolts. The filter plate has filter holes with a hole diameter smaller than the diameter of the steel ball.

[0009] Preferably, the filter pores are distributed only on the outer ring of the filter plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. During ball milling, two different rotating shafts control the adjacent ball mill cylinders to convey materials in the same direction. Since the spiral directions of adjacent spiral ribs are opposite, the adjacent ball mill cylinders rotate in opposite directions. When the raw material travels along the conveying direction of the ball mill cylinder, it is alternately struck by steel balls in two different directions, resulting in a better ball milling effect and greatly improving ball milling efficiency. Since the filling rate of steel balls in the ball mill cylinder is 30%-50%, under the interaction between centrifugation and steel balls, the steel balls will not be pushed by the spiral ribs, but will be evenly distributed in the ball mill cylinder, ensuring the ball milling effect.

[0012] 2. The filter holes are only distributed on the outer ring of the filter plate, which strengthens the filter plate and prevents damage, and will not affect the discharge speed. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0014] Figure 2 This is a schematic cross-sectional view of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0016] In the figure: 1. Ball mill cylinder; 2. Liner plate; 3. Spiral rib; 4. Feed plate; 5. Support; 6. Feeding mechanism; 61. Feed cylinder; 62. Hopper; 63. Conveyor shaft; 64. Spiral blade; 7. Bearing frame; 8. Gear ring; 9. Gear; 10. Rotating shaft; 11. Filter ball mechanism; 111. Support lug; 112. Filter plate; 113. Filter hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] The rotary connection described in this device refers to the axial fixation of the bearing by mounting the bearing on the shaft, with a spring retaining ring groove provided on the shaft or shaft hole, and the rotation achieved by locking the elastic retaining ring in the retaining ring groove; the hinge connection refers to the connection method that allows movement through connecting parts such as hinges, pins, and short shafts.

[0019] The present invention will now be described in detail with reference to the accompanying drawings.

[0020] The following is in conjunction with the appendix Figure 1-3 This embodiment describes a ball mill for graphite, comprising: a ball mill cylinder 1, multiple ball mill cylinders 1 arranged concentrically with equal inner diameters, adjacent ball mill cylinders 1 being rotatably connected, a liner plate 2 connected inside the ball mill cylinder 1, spiral ribs 3 connected on the liner plate 2, adjacent spiral ribs 3 having opposite spiral directions, a feed plate 4 rotatably connected and fastened to the outer end of the outermost ball mill cylinder 1, another outermost ball mill cylinder 1 being connected to a filter ball mechanism 11, the filter ball mechanism 11 being able to retain steel balls and filter out graphite, the feed plate 4 being connected inside a support 5, the feed plate 4 being connected to a feed mechanism 6, the ball mill cylinder 1 being rotatably connected inside a bearing frame 7, each ball mill cylinder 1 having a toothed ring 8 connected to the outside, each toothed ring 8 being meshed with a gear 9, adjacent toothed rings 8 having their gears 9 connected to two different rotating shafts 10, the rotating shafts 10 being rotatably connected between the support 5 and the bearing frame 7, the two rotating shafts 10 being controlled by two independent power sources.

[0021] During ball milling, graphite is injected into the ball mill cylinder 1 through the feeding mechanism 6. The two rotating shafts 10 are powered, and the rotating shafts 10 drive the gear ring 8 to rotate through the gear 9. The gear ring 8 drives the ball mill cylinder 1 to rotate. The two different rotating shafts 10 control the adjacent ball mill cylinders 1 to have the same conveying direction. Since the adjacent spiral ribs 3 have opposite spiral directions, the adjacent ball mill cylinders 1 rotate in opposite directions. When the raw material travels along the conveying direction of the ball mill cylinder 1, it is alternately thrown and hit by steel balls in two different directions, resulting in a better ball milling effect and greatly improving the ball milling efficiency. Since the filling rate of steel balls in the ball mill cylinder is 30%-50%, under the interaction between centrifugation and steel balls, the steel balls will not be pushed by the spiral ribs, but will be evenly distributed in the ball mill cylinder 1, ensuring the ball milling effect.

[0022] The feeding mechanism 6 includes a feeding cylinder 61, which is connected to the feeding plate 4 holes. A hopper 62 is connected to the upper part of the feeding cylinder 61. The end side wall of the feeding cylinder 61 is rotatably connected to the conveying shaft 63. A spiral blade 64 is connected to the conveying shaft 63 inside the feeding cylinder 61.

[0023] Graphite is injected into the feed cylinder 61 through the hopper. The power of the conveyor shaft 63 is turned on, and the conveyor shaft 63 drives the spiral blade 64 to rotate, pushing the graphite into the ball mill cylinder 1 through the feed plate 4 holes.

[0024] The filter ball mechanism 11 includes a support lug 111, which is connected to the outer end of the outermost ball mill cylinder 1. The support lug 111 is connected to the filter plate 112 by bolts. The filter plate 112 has filter holes 113, and the diameter of the filter holes 113 is smaller than the diameter of the steel ball.

[0025] The lugs 111 and the filter plate 112 are connected by bolts, and the detachable design facilitates maintenance.

[0026] The filter holes 113 are only distributed on the outer ring of the filter plate 112.

[0027] The strength of filter pore 113 is enhanced to prevent damage and will not affect the discharge speed.

[0028] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ball mill for graphite, characterized in that: include: A ball mill (1) is formed by multiple concentrically arranged ball mills (1) with equal inner diameters. Adjacent ball mills (1) are rotatably connected. A liner (2) is connected inside the ball mill (1). A spiral rib (3) is connected to the liner (2). Adjacent spiral ribs (3) have opposite spiral directions. A feed plate (4) is rotatably connected and fastened to the outer end of the outermost ball mill (1). Another outermost ball mill (1) is connected to a filter ball mechanism (11). The filter ball mechanism (11) can retain steel balls and filter out graphite. The feed plate (4) is connected to the feed ball mechanism (11). 4) Connected to the bracket (5), the feed plate (4) is connected to the feed mechanism (6), the ball mill cylinder (1) is rotatably connected to the bearing frame (7), each ball mill cylinder (1) is connected to a toothed ring (8) on the outside, each toothed ring (8) is meshed with a gear (9), the gears (9) of adjacent toothed rings (8) are connected to two different rotating shafts (10), the rotating shafts (10) are rotatably connected to the bracket (5) and the bearing frame (7), and the two rotating shafts (10) are controlled by two independent power sources.

2. A ball mill for graphite according to claim 1, characterized in that: The feeding mechanism (6) includes a feeding cylinder (61), which is connected to the hole of the feeding plate (4). A hopper (62) is connected to the upper part of the feeding cylinder (61). The end side wall of the feeding cylinder (61) is rotatably connected to the conveying shaft (63). A spiral blade (64) is connected to the conveying shaft (63) inside the feeding cylinder (61).

3. A ball mill for graphite according to claim 1, characterized in that: The filter ball mechanism (11) includes a support (111), which is connected to the outer end of the outermost ball mill cylinder (1). The support (111) is connected to the filter plate (112) by bolts. The filter plate (112) has filter holes (113) with a diameter smaller than that of the steel ball.

4. A ball mill for graphite according to claim 3, characterized in that: The filter holes (113) are only distributed on the outer ring of the filter plate (112).

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