CN118002266A

CN118002266A - Ball milling equipment

Info

Publication number: CN118002266A
Application number: CN202410367223.5A
Authority: CN
Inventors: 袁呈祥; 王德雨; 刘跃生; 张以敬
Original assignee: Jinan Longteng New Energy Heavy Equipment Co ltd
Current assignee: Jinan Longteng New Energy Heavy Equipment Co ltd
Priority date: 2024-03-28
Filing date: 2024-03-28
Publication date: 2024-05-10

Abstract

The invention relates to the technical field of ball milling equipment, in particular to ball milling equipment; the device comprises a ball mill, wherein a first feeding pipe is communicated with the left side of the ball mill, a discharging pipe is communicated with the right side of the ball mill, the first feeding pipe and the discharging pipe are both rotationally connected to the ball mill, a second feeding pipe is communicated with the upper end of the first feeding pipe, and the ball mill is rotationally arranged on a frame; the material processing device comprises a receiving cylinder connected to the lower end of the discharging pipe, and a magnetic separation mechanism and a material buffering mechanism are arranged in the receiving cylinder; through setting up material processing apparatus in ball mill ejection of compact department, can directly separate the steel ball and the material through grinding operation, and can separately collect, in the steel ball can directly enter into the drum of ball mill after the clearance, accomplish multi-step operation through an equipment, simplify the loaded down with trivial details of current multi-equipment operation to solve the great problem of a plurality of equipment area simultaneously.

Description

Ball milling equipment

Technical Field

The invention relates to the technical field of ball milling equipment, in particular to ball milling equipment.

Background

Ball mills generally consist of a rotating cylinder, grinding media (typically steel balls or other metal balls) and feed and discharge ports for the material mixture. In the rotating cylinder, when the ball mill rotates at a certain wheel speed, the grinding medium (hereinafter, referred to as steel ball) and the material are lifted together under the action of centrifugal force and friction force to generate impact, shearing, friction and rolling grinding motions, so that the grinding effect on the material is achieved.

When the ball mill discharges, the steel ball can be poured out all the way under the general condition, the cleaning of the attached materials on the surface of the ball milling medium and the inspection and replacement of the ball milling medium are convenient, but when the relatively smaller materials are ground, the steel ball is not required to be replaced frequently, the steel ball only needs to be cleaned on the surface after grinding operation each time, and then enters the cylinder of the ball mill again, the traditional operation mode is completed step by separating the steel ball and the materials outside and cleaning the steel ball by a plurality of devices, the steel ball is required to be fed and discharged in different devices for a plurality of times, the time and the labor are wasted, the plurality of devices occupy large area and the operation mode of multiple steps are complex, and therefore, the ball milling equipment is required to be improved in one step.

Disclosure of Invention

The invention provides ball milling equipment, which solves the problems existing in the background technology.

The invention provides ball milling equipment, which comprises a ball mill, wherein a first feeding pipe is communicated with the left side of the ball mill, a discharging pipe is communicated with the right side of the ball mill, the first feeding pipe and the discharging pipe are both rotationally connected to the ball mill, a second feeding pipe is communicated with the upper end of the first feeding pipe, and the ball mill is rotationally arranged on a frame; the material processing device comprises a receiving cylinder connected to the lower end of the discharging pipe, wherein the receiving cylinder consists of an upper cylinder and a lower cylinder which are communicated and have different diameters, the lower cylinder is fixedly connected with the outer wall of the upper cylinder, a magnetic separation mechanism and a buffer mechanism are arranged in the receiving cylinder, and a discharge hole is formed in the lower end of the side wall of the receiving cylinder; the magnetic separation mechanism is arranged below the discharge pipe and is used for carrying out magnetic separation operation on the steel balls; the material buffering mechanism is arranged below the magnetic separation mechanism, separates the ground materials and plays a temporary bearing role on the steel balls at the same time; wherein, magnetic separation mechanism includes the branch material awl of fixed connection at receiving feed cylinder inner wall, and the bottom fixedly connected with magnetism platform of branch material awl, and the arcwall face of magnetism platform is for having magnetism setting, and the holding tank has been seted up to the bottom of magnetism platform, and holding tank internal rotation is connected with the collection cylinder, circumference and run through in the inside fixedly connected with of collection cylinder and scrape the ball board on the outer wall of collection cylinder.

In one possible implementation mode, the material buffering mechanism comprises a material distributing frame, the bottom end of a cylindrical barrel at the upper end of a material receiving barrel is provided with an annular groove, the material distributing frame is connected in the annular groove through a spring, the upper end of the material distributing frame is provided with a vibrating motor in the annular groove, the bottom end of the material distributing frame is of a circular plate structure with sieve holes, and a collecting barrel movably penetrates through the bottom end of the material distributing frame.

In a possible implementation manner, the bottom end of the collecting cylinder is rotationally connected with a material distributing pipe, the material distributing pipe is composed of a cylindrical structure at the upper end and two symmetrical semi-cylindrical structures at the lower end, a material distributing rod is fixedly connected at the joint of the bottom end of the cylindrical structure and the two semi-cylindrical structures, the two semi-cylindrical structures are obliquely arranged at positions away from the center from top to bottom, the bottom ends of the two semi-cylinders penetrate through the bottom end of the material receiving cylinder, and the two semi-cylindrical structures are fixedly connected at the bottom end of the material receiving cylinder.

In one possible implementation manner, the middle of the material distributing rod is rotationally connected with a cylindrical rod, the cylindrical rod is arranged along the axial direction of the material receiving barrel, a plurality of buffer rods are circumferentially staggered from top to bottom at the position of the material receiving barrel, and a driving assembly is arranged at the upper end of the cylindrical rod.

In one possible implementation mode, the driving assembly comprises a rotating motor fixedly connected to the upper end of the cylindrical rod, the rotating motor is fixedly connected to the accommodating groove at the bottom end of the magnetic table, a driving gear is fixedly connected to the cylindrical rod near the upper end of the cylindrical rod, a connecting gear is connected to the driving gear in a meshing mode, a connecting shaft of the connecting gear is rotatably connected to the accommodating groove, and the connecting gear is connected to an inner gear ring arranged on the inner wall of the upper end of the collecting cylinder in a meshing mode.

In one possible implementation mode, the ball scraping plate is of a U-shaped structure, one side, close to the magnetic table, of the ball scraping plate is obliquely arranged to the other side of the ball scraping plate, the outer side, close to one side plate of the magnetic table, of the ball scraping plate is arranged to be close to the arc-shaped outer wall of the magnetic table, and the inner wall of the other side of the ball scraping plate is of an arc-shaped structure in cross section.

In one possible implementation manner, the buffer rods are composed of a plurality of rod pieces with different lengths, the buffer rods are made of hard materials and flexible materials in a staggered mode, and the distance between the buffer rods made of the hard materials located at the same height is larger than the diameter of the steel ball.

In one possible implementation manner, opposite sides of the two semi-cylindrical structures at the lower end of the material dividing pipe are of a sieve plate structure with through holes, one side, away from each other, of the two semi-cylindrical structures is of a semi-arc structure, and the inner wall of the semi-arc structure is fixedly connected with a plurality of arc balls.

In one possible implementation mode, the device further comprises a fixing seat arranged at the bottom end of the frame, the outer wall of the receiving cylinder is fixedly connected to the right side of the fixing seat, the bottom end of the receiving cylinder is fixedly connected with a receiving pipe, the right side of the receiving pipe is communicated with the bottom end of the distributing pipe, the middle of the receiving pipe is inclined from right to left, the upper end of the left side of the receiving pipe is communicated with the first feeding pipe, and a screw conveyor is arranged on the inner side of the receiving pipe.

The above technical solutions in the embodiments of the present invention have at least one of the following technical effects:

1. According to the ball milling equipment provided by the embodiment of the invention, the material processing device is arranged at the discharging position of the ball milling machine, so that the steel balls and materials subjected to milling operation can be directly separated and collected separately, the steel balls can directly enter the cylinder of the ball milling machine after being cleaned, the multi-step operation is completed through one equipment, the complicated operation of the traditional multi-equipment is simplified, and the problem that the occupied area of the equipment is large is solved.

2. According to the ball milling equipment provided by the embodiment of the invention, the magnetic separation mechanism is arranged, the steel balls can be collected and cleaned while the materials are separated, and the scraping of the steel balls and the cleaning of the surfaces of the steel balls are synchronously performed through one drive, so that the ball milling equipment is simple in overall structural design and high in practicability.

3. According to the ball milling equipment provided by the embodiment of the invention, the buffer rods which are different in length and are made of the combination of the hard material and the flexible material are arranged to brush and clean the surfaces of the steel balls, so that the impact effect can be exerted on the steel balls at the moment that the steel balls contact the hard material, the materials adhered to the surfaces of the steel balls can be loosened, and the brushing of the flexible material is facilitated.

Drawings

Fig. 1 is a schematic structural view of a ball mill according to a first view angle of an embodiment of the present invention.

Fig. 2 is a sectional view showing a part of the structure of a ball milling apparatus according to an embodiment of the present invention.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is an enlarged view at B in fig. 2.

Fig. 5 is a front view of the structure of fig. 2.

Fig. 6 is a schematic view of a ball scraping plate structure of a ball milling device according to an embodiment of the present invention.

In the figure: 1. ball mill; 11. a first feed tube; 12. a discharge pipe; 13. a second feed tube; 2. a frame; 21. a fixing seat; 3. a material handling device; 30. a receiving cylinder; 31. a magnetic separation mechanism; 311. a material dividing cone; 312. a magnetic stage; 313. a collection cylinder; 3131. a material dividing pipe; 3132. a material distributing rod; 3133. a sieve plate; 314. a ball scraper; 32. a material buffering mechanism; 321. a material separating frame; 322. a spring; 323. a circular plate; 33. a discharge port; 34. a cylindrical rod; 35. a buffer rod; 36. a drive assembly; 361. a rotating motor; 362. a drive gear; 363. a connecting gear; 364. an inner gear ring; 4. and (5) connecting a ball tube.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described below and similarly modified by those skilled in the art without departing from the spirit or scope of the invention, which is therefore not limited to the specific embodiments disclosed below.

Referring to fig. 1,2 and 4, a ball milling device comprises a ball mill 1, wherein a first feeding pipe 11 is communicated with the left side of the ball mill 1, a discharging pipe 12 is communicated with the right side of the ball mill 1, the first feeding pipe 11 and the discharging pipe 12 are both rotationally connected to the ball mill 1, a second feeding pipe 13 is communicated with the upper end of the first feeding pipe 11, and the ball mill 1 is rotationally arranged on a frame 2; the material treatment device 3 comprises a receiving cylinder 30 connected to the lower end of the discharging pipe 12, wherein the receiving cylinder 30 consists of an upper cylinder and a lower cylinder which are communicated and have different diameters, the lower cylinder is fixedly connected to the outer wall of the upper cylinder, a magnetic separation mechanism 31 and a buffer mechanism 32 are arranged in the receiving cylinder 30, and a discharge hole 33 is formed in the lower end of the side wall of the receiving cylinder 30; the magnetic separation mechanism 31 is arranged below the discharge pipe 12 and is used for carrying out magnetic separation operation on the steel balls; the buffer mechanism 32 is arranged below the magnetic separation mechanism 31, separates the ground materials and plays a temporary bearing role on the steel balls at the same time, so that the steel balls can be conveniently and subsequently magnetically separated. The frame 2 bottom is provided with fixing base 21, connects the outer wall fixed connection of feed cylinder 30 on the right side of fixing base 21, plays further fixed bearing effect to the feed cylinder 30, connects the bottom fixedly connected with of feed cylinder 30 and connects ball pipe 4, connects ball pipe 4's right side intercommunication branch pipe 3131's bottom setting, connects ball pipe 4's centre to incline from right to left, connects ball pipe 4's left upper end and first inlet pipe 11 intercommunication setting, connects ball pipe 4's inboard to be provided with screw conveyer (not shown in the figure).

During operation, at the beginning, enter ball mill 1 with steel ball and the material that needs to grind through second inlet pipe 13, after grinding through ball mill 1, discharge together with steel ball from discharging pipe 12, material and steel ball enter into connect in barrel 30 together, carry out adsorption type collection with the steel ball through magnetic separation mechanism 31, the material after grinding continues to descend through buffer mechanism 32, and discharge and connect barrel 30 through discharge gate 33 and collect, buffer mechanism 32 is to the steel ball temporary support that does not collect in time until magnetic separation mechanism 31 adsorbs the steel ball, the steel ball after adsorbing carries out the surface cleaning operation in the inside of magnetic separation mechanism 31, then in the ball receiving pipe 4, the steel ball after cleaning is from ball receiving pipe 4 and in the first inlet pipe 11 through screw conveyer, in order to conveniently carry out the grinding operation of next round.

Referring to fig. 2,3 and 6, the magnetic separation mechanism 31 includes a material separating cone 311 fixedly connected to an inner wall of the material receiving cylinder 30, a magnetic table 312 is fixedly connected to a bottom end of the material separating cone 311, an arc surface of the magnetic table 312 is provided with a magnetic arrangement, a receiving groove is formed in a bottom end of the magnetic table 312, a collecting cylinder 313 is rotationally connected to the receiving groove, and a plurality of ball scraping plates 314 are circumferentially connected to an outer wall of the collecting cylinder 313 and penetrate through the collecting cylinder 313. The ball scraping plate 314 is of a U-shaped structure, one side of the ball scraping plate 314, which is close to the magnetic table 312, is obliquely arranged to the other side of the ball scraping plate 314, the outer side of the ball scraping plate 314, which is close to one side of the magnetic table 312, is arranged close to the arc-shaped outer wall of the magnetic table 312, and the inner wall of the other side of the ball scraping plate 314 is of an arc-shaped structure in cross section.

With continued reference to fig. 2 and fig. 4, the buffering mechanism 32 includes a material separating frame 321, the bottom end of the upper end cylinder of the material receiving cylinder 30 is provided with an annular groove, the material separating frame 321 is connected in the annular groove through a spring 322, the upper end of the material separating frame 321 is provided with a vibration motor in the annular groove, the bottom end of the material separating frame 321 is a circular plate 323 structure with sieve holes, and the collecting cylinder 313 movably penetrates through the bottom end of the material separating frame 321.

During operation, ground materials and steel balls are discharged from the discharging pipe 12 and enter the receiving cylinder 30, firstly, the ground materials and the steel balls contact the distributing cone 311, the ground materials and the steel balls scatter and fall under the action of the distributing cone 311 and enter the upper end of the distributing frame 321, the distributing frame 321 continuously vibrates in the receiving cylinder 30 under the action of the vibrating motor so as to facilitate the ground materials to fall into the bottom end of the receiving cylinder 30, meanwhile, the possibility of blocking of a circular plate 323 with a sieve mesh is reduced, the steel balls are adsorbed on the arc-shaped surface due to the fact that the side surface of the magnetic table 312 is of a magnetic structure, the steel balls adsorbed on the surface of the magnetic table 312 are scraped into the U-shaped structure of the scraping plate 314 while the scraping plate 314 rotates around the magnetic table 312, and at the same time, the U-shaped structure is of an isolated magnetic structure, and the steel balls scraped into the scraping plate 314 roll into the collecting cylinder 313 along one side of which is of the arc-shaped structure in cross section.

Referring to fig. 2 and 5, a cylindrical rod 34 is rotatably connected in the middle of the material distributing rod 3132, the cylindrical rod 34 is arranged along the axial direction of the material receiving barrel 30, a plurality of buffer rods 35 are alternately arranged at the position of the cylindrical rod 34 at the material receiving barrel 30 from top to bottom in the circumferential direction, the buffer rods 35 are composed of a plurality of rods with different lengths, the buffer rods 35 are alternately arranged by hard materials and flexible materials, and the distance between the buffer rods 35 which are made of the hard materials and are positioned at the same height is larger than the diameter of a steel ball; the upper end of the cylindrical rod 34 is provided with a drive assembly 36. The driving assembly 36 includes a rotating motor 361 fixedly connected to the upper end of the cylindrical rod 34, the rotating motor 361 is fixedly connected to the bottom end of the magnetic table 312 in a receiving groove, a driving gear 362 is fixedly connected to the upper end of the cylindrical rod 34, a connecting gear 363 is connected to the driving gear 362 in a meshed manner, a connecting shaft of the connecting gear 363 is rotatably connected to the receiving groove, and the connecting gear 363 is connected to an inner gear ring 364 provided on the inner wall of the upper end of the collecting cylinder 313 in a meshed manner.

When the device works, the rotating motor 361 is started to drive the cylindrical rods 34 to rotate, the cylindrical rods 34 synchronously drive the buffer rods 35 to rotate in the collecting cylinder 313, and the surfaces of falling steel balls are cleaned, because the buffer rods 35 are arranged in different lengths, the surfaces of the falling steel balls can be cleaned at multiple angles, the buffer rods 35 are arranged in a staggered manner of hard materials and flexible materials, in the falling process of the steel balls, the steel balls can be instantaneously blocked by the hard materials, and the adhered ground materials on the surfaces of the steel balls are loosened after being collided, so that the steel balls are easier to fall off when the soft materials are contacted; the cylindrical rod 34 rotates simultaneously with the driving gear 362 synchronously, the driving gear 362 engages the connecting gear 363 to rotate, the connecting gear 363 drives the inner gear ring 364 to rotate, and then drives the collecting cylinder 313 to rotate, the collecting cylinder 313 rotates at different speeds with the cylindrical rod 34, and the collecting cylinder 313 synchronously drives the ball scraping plate 314 to rotate when rotating, and the ball scraping plate 314 rotates around the surface of the magnetic table 312.

Referring to fig. 2 and 5, the bottom end of the collecting cylinder 313 is rotatably connected with a material dividing pipe 3131, the material dividing pipe 3131 is composed of a cylindrical structure at the upper end and two symmetrical semi-cylindrical structures at the lower end, opposite sides of the two semi-cylindrical structures at the lower end of the material dividing pipe 3131 are of a sieve plate 3133 structure with through holes, one side, away from the two semi-cylindrical structures, is of a semi-circular structure, and the inner wall of the semi-circular structure is fixedly connected with a plurality of arc balls. The junction fixedly connected with branch material pole 3132 of the bottom of cylinder structure and two semi-cylindrical structures, two semi-cylindrical structures are from last to down to keeping away from the position slope setting in center, and the bottom of two semi-cylinders runs through the bottom setting of connecing feed cylinder 30, and fixed connection is in the bottom of connecing feed cylinder 30.

During operation, the collecting cylinder 313 rotates at the upper end of the distributing pipe 3131, the materials adhered to the surfaces of the steel balls and the steel balls inside are dispersed and fall into the distributing pipe 3131, the falling speeds of the materials falling down are slow due to the arrangement of the two semi-cylindrical structures, so that the materials falling down are uniformly collected in the receiving cylinder 30 through the sieve plate 3133 structure with the through holes, a plurality of arc balls are arranged on the inner wall of the semi-circular arc structure, the steel balls can rebound to the sieve plate 3133 structure when contacting the arc balls in the falling process, the shaking effect is achieved on the sieve plate 3133 structure, the falling of the materials is facilitated, the steel balls enter the ball receiving pipe 4 after passing through the distributing pipe 3131, the separation of the steel balls and the materials after grinding is realized, and the further cleaning of the surfaces of the steel balls is achieved.

In embodiments of the invention, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, or slidably connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle according to the present invention should be covered in the protection scope of the present invention.

Claims

1. Ball milling equipment, including ball mill (1), its characterized in that: the left side of the ball mill (1) is communicated with a first feeding pipe (11), the right side of the ball mill (1) is communicated with a discharging pipe (12), the first feeding pipe (11) and the discharging pipe (12) are both rotationally connected to the ball mill (1), the upper end of the first feeding pipe (11) is communicated with a second feeding pipe (13), and the ball mill (1) is rotationally arranged on the frame (2);

The material treatment device (3) comprises a receiving cylinder (30) connected to the lower end of the discharging pipe (12), the receiving cylinder (30) is composed of an upper cylinder and a lower cylinder which are communicated and have different diameters, the lower cylinder is fixedly connected to the outer wall of the upper cylinder, a magnetic separation mechanism (31) and a material buffering mechanism (32) are arranged in the receiving cylinder (30), and a discharging hole (33) is formed in the lower end of the side wall of the receiving cylinder (30);

The magnetic separation mechanism (31) is arranged below the discharge pipe (12) and is used for carrying out magnetic separation operation on the steel balls;

the buffer mechanism (32) is arranged below the magnetic separation mechanism (31) and used for separating the ground materials and simultaneously playing a temporary bearing role on the steel balls;

Wherein, magnetic separation mechanism (31) are including fixed connection divide flitch (311) at receiving feed cylinder (30) inner wall, the bottom fixedly connected with magnetism platform (312) of divide flitch (311), the arcwall face of magnetism platform (312) is for having magnetism setting, the holding tank has been seted up to the bottom of magnetism platform (312), holding tank internal rotation is connected with collection cylinder (313), circumference and run through in the inside fixedly connected with of collection cylinder (313) scraping ball board (314) on the outer wall of collection cylinder (313).

2. A ball milling apparatus according to claim 1, wherein: the material buffering mechanism (32) comprises a material distributing frame (321), an annular groove is formed in the bottom end of a cylindrical barrel at the upper end of the material receiving barrel (30), the material distributing frame (321) is connected in the annular groove through a spring (322), a vibrating motor is arranged at the upper end of the material distributing frame (321) and located in the annular groove, the bottom end of the material distributing frame (321) is of a circular plate (323) structure with sieve holes, and the collecting barrel (313) movably penetrates through the bottom end of the material distributing frame (321).

3. A ball milling apparatus according to claim 2, wherein: the bottom rotation of the collection cylinder (313) is connected with a material distributing pipe (3131), the material distributing pipe (3131) is composed of a cylindrical structure at the upper end and two symmetrical semi-cylindrical structures at the lower end, a material distributing rod (3132) is fixedly connected to the joint of the bottom end of the cylindrical structure and the two semi-cylindrical structures, the two semi-cylindrical structures are obliquely arranged at positions away from the center from top to bottom, the bottom ends of the two semi-cylindrical structures penetrate through the bottom end of the material receiving cylinder (30), and the bottom ends of the material receiving cylinder (30) are fixedly connected.

4. A ball milling apparatus according to claim 3, wherein: the middle rotation of branch material pole (3132) is connected with cylinder pole (34), and cylinder pole (34) set up along the axis direction that connects feed cylinder (30), and cylinder pole (34) are located the position that connects feed cylinder (30) and are provided with a plurality of buffer rods (35) from last to lower circumference crisscross, and the upper end of cylinder pole (34) is provided with drive assembly (36).

5. The ball milling apparatus according to claim 4, wherein: the driving assembly (36) comprises a rotating motor (361) fixedly connected to the upper end of the cylindrical rod (34), the rotating motor (361) is fixedly connected to the bottom end of the magnetic table (312) in a containing groove, a driving gear (362) is fixedly connected to the upper end of the cylindrical rod (34), a connecting gear (363) is connected to the driving gear (362) in a meshed mode, a connecting shaft of the connecting gear (363) is rotatably connected to the containing groove, and the connecting gear (363) is connected to an inner gear ring (364) arranged on the inner wall of the upper end of the collecting cylinder (313) in a meshed mode.

6. A ball milling apparatus according to claim 1, wherein: the ball scraping plate (314) is of a U-shaped structure, one side of the ball scraping plate (314) close to the magnetic table (312) is inclined towards the other side of the ball scraping plate (314), the outer side of the ball scraping plate (314) close to one side plate of the magnetic table (312) is close to the arc-shaped outer wall of the magnetic table (312), and the inner wall of the other side of the ball scraping plate (314) is of an arc-shaped structure in cross section.

7. The ball milling apparatus according to claim 4, wherein: the buffer rods (35) are formed by a plurality of rod pieces with different lengths, the buffer rods (35) are arranged in a staggered mode by hard materials and flexible materials, and the distance between the buffer rods (35) which are positioned at the same height and made of hard materials is larger than the diameter of the steel ball.

8. A ball milling apparatus according to claim 3, wherein: opposite sides of two semi-cylindrical structures at the lower end of the material dividing pipe (3131) are provided with a sieve plate (3133) structure with a through hole, and the side, away from each other, of the two semi-cylindrical structures is provided with a semi-circular arc structure, and the inner wall of the semi-circular arc structure is fixedly connected with a plurality of arc balls.

9. A ball milling apparatus according to claim 3, wherein: still including setting up fixing base (21) in frame (2) bottom, the outer wall fixed connection of receiving feed cylinder (30) is on the right side of fixing base (21), the bottom fixedly connected with of receiving feed cylinder (30) connects bulb (4), connects the bottom setting of the right side intercommunication branch material pipe (3131) of bulb (4), connects the centre of bulb (4) from right side slope left, connects the left upper end and the first inlet pipe (11) intercommunication setting of bulb (4), connects the inboard of bulb (4) to be provided with screw conveyer.