CN217140600U

CN217140600U - Ball mill feeding device

Info

Publication number: CN217140600U
Application number: CN202220600372.8U
Authority: CN
Inventors: 王恩; 霍全义
Original assignee: Sanmenxia Tiankang Compete Set Equipment Co ltd
Current assignee: Sanmenxia Tiankang Compete Set Equipment Co ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-08-09
Anticipated expiration: 2032-03-18

Abstract

The utility model relates to a mill feeding technical field, the utility model aims to provide a ball mill feed arrangement to the lower technical problem of its feeding efficiency is caused to the ball mill feeding dolly that solves among the prior art need frequently change the welt. The ball mill feeding device comprises a ball mill feeding vehicle, the ball mill feeding vehicle comprises a vehicle frame and rollers, a feeding cylinder is arranged on the vehicle frame, the feeding cylinder is provided with a material containing inner cavity for containing the raw materials to be ground, a feeding hole and a discharging hole are formed in the feeding cylinder, and the discharging hole is used for discharging materials to a ball mill feeding pipeline; a wear-resistant lining plate is arranged on the wall of the feeding cylinder where the discharge port is positioned; the bottom plate of the material containing cavity is gradually inclined downwards from far away from the discharge hole to close to the discharge hole in the direction towards which the discharge hole faces; the highest position of the bottom plate of the material containing inner cavity is lower than the lowest position of the discharge hole so as to form a buffer space for accumulating the raw materials to be ground on the upper side of the bottom plate of the material containing inner cavity, and the raw materials to be ground are accumulated on the upper side of the bottom plate of the material containing inner cavity to form a raw material buffer layer.

Description

Ball mill feeding device

Technical Field

The utility model relates to a mill feeding technical field, concretely relates to ball mill feed arrangement.

Background

The ball mill is a key device for crushing materials, and then crushing the materials, the ball mill is generally divided into a dry type ball mill and a wet type ball mill, the dry type ball mill is suitable for grinding various refractory materials and hard particle materials, and is widely applied to industries such as building materials, chemical engineering and the like; the wet ball mill is used for grinding materials such as ores and slurry and is widely applied to industries such as ore dressing and ceramics. The ball mill comprises an inner cylinder for containing and grinding materials and a transmission mechanism for driving the inner cylinder body to rotate. The inner cylinder of the ball mill is provided with a feeding pipeline which can rotate along with the inner cylinder and is communicated with the outside, the feeding pipeline is used for filling raw materials to be ground into the ball mill, when the ball mill is used, the raw materials to be ground are usually filled with grinding balls with heavier mass, smaller volume and more quantity, such as steel balls and steel balls, and the raw materials to be ground are crushed and ground through mutual collision extrusion when the grinding balls rotate and roll.

In the prior art, the method for filling raw materials into the ball mill generally adopts a mode of directly filling by using a feeding hose or feeding by using a feeding trolley. The method adopting the feeding hose is characterized in that the feeding hose is connected to a feeding pipeline of the ball mill, the connection reliability of the method is low, and the hose is easy to corrode, damage or even break due to different materials of raw materials to be ground and collision of grinding balls. The feeding dolly generally includes the frame and sets up the side's pipe that connects the material greatly on the frame, and square pipe downwardly extending's other end port forms 90 degrees contained angles through twice corner and is connected with the horizontally pipe, and the pipe forms the discharge gate of feeding dolly, and the pipe is used for connecting on the feedstock channel of ball mill, and the pipe passes through flange bolted connection with square pipe, and pipe and square pipe are 90 degrees contained angles. However, the material trolley has the advantages that the feeding port and the discharging port of the material trolley form a 90-degree included angle, the square tube and the round tube are in transition to form a closing-in, a step can be formed at the joint of the square tube and the round tube, the step structure easily causes the technical problems of unsmooth discharging and frequent blockage of the tube, and the structure of the feeding trolley is also complex and is not beneficial to processing and installation.

In order to solve the technical problems of the feeding trolley, the utility model with the authorization publication number of CN207722947U discloses a feeding trolley of a semi-autogenous mill, which comprises a seat plate, a pulley yoke, a pulley, a bracket, a material receiving pipe and a discharging pipe; the lower surface of the seat plate is provided with a pulley yoke, the lower end of the pulley yoke is connected with a pulley, and the pulley enables the trolley to move. Wherein, the receiving pipe of feeding dolly is square pipe, and the receiving pipe setting is in the middle of the support, and the bottom of discharge tube is polygon, top for the arc, and the discharge tube is connected in receiving pipe one side and with receiving pipe intercommunication, and the discharge tube becomes 122 degrees contained angles with the receiving pipe, and the bottom plate of discharge tube is established to detachable welt, receives raw materials and ball impact damage at the discharge tube after change the welt can. The ball mill can be filled with raw materials through the feeding trolley by butting the discharge pipe on the feeding channel of the ball mill. The feeding trolley is simple in structure, the discharge opening is wide, material blockage is not prone to occurring, the lining plate is easy to disassemble and assemble, and the service life of the feeding trolley of the mill is prolonged.

The problem that feeding dolly among the prior art exists is, because treat during the raw materials of grinding filled the fortune material pipeline of dolly from the receiving pipe opening of dolly top, and raw materials self gravity and its volume are great, consequently very easily cause the damage of bottom welt in the dolly discharge tube, the collision of ball in the raw materials also can further aggravate the destruction to the bottom welt with dropping, even the bottom welt of feeding dolly can be torn open and trade among the prior art, but the feeding worker of raw materials is as the state that lasts, the bottom welt structure that has damaged can't satisfy the work of carrying on feeding that lasts for a long time, need frequent shut down to change the welt, greatly reduced the reinforced progress and the reinforced efficiency to the ball mill, be unfavorable for the expansion of work and going on.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ball mill feed arrangement to the ball mill feeding dolly of solving among the prior art needs frequently to change the bottom welt and causes its lower technical problem of charging efficiency.

In order to achieve the above object, the utility model provides a ball mill feed arrangement's technical scheme is:

a ball mill feeding device comprises a ball mill feeding vehicle, wherein the ball mill feeding vehicle comprises a frame and rollers assembled at the bottom of the frame, a feeding cylinder is arranged on the frame, the feeding cylinder is provided with a material containing inner cavity used for containing a raw material to be ground, a feeding hole is formed in the feeding cylinder, and the feeding hole is used for filling the raw material to be ground and grinding balls into the feeding cylinder; a discharge port with an opening facing to the horizontal direction is arranged on the wall of the feeding cylinder and used for discharging materials to a feeding pipeline of the ball mill; the wall of the feeding barrel where the discharge port is located is provided with a wear-resistant lining plate which is annularly arranged; the bottom plate of the material containing cavity is gradually inclined downwards from far away from the discharge hole to close to the discharge hole in the direction towards which the discharge hole faces; the highest position of the bottom plate of the material containing inner cavity is lower than the lowest position of the discharge hole so as to form a buffer space for accumulating the raw materials to be ground on the upper side of the bottom plate of the material containing inner cavity, and the raw materials to be ground are accumulated on the upper side of the bottom plate of the material containing inner cavity to form a raw material buffer layer.

Has the advantages that: contain the highest position of expecting inner chamber bottom plate and be less than the lowest position of discharge gate to bottom plate upside at containing the material inner chamber has formed the confession and has waited the accumulational buffer space of grinding raw materials, when treating grinding raw materials and ball-milling in the filling to the feeding section of thick bamboo, can pile up in the buffer space of bottom plate upside and wait grinding raw materials and ball-milling, form the raw materials buffer layer, follow-up the grinding raw materials and the ball-milling of treating that last filling can fall on the raw materials buffer layer, thereby can not carry out the contact collision with the bottom plate, the impact and the wearing and tearing that the bottom plate received have greatly been reduced. The bottom plate of flourishing material inner chamber is kept away from the discharge gate from the direction that the discharge gate was faced to being close to the discharge gate and slope down gradually and also can make the thickness that the raw materials buffer layer formed on the bottom plate comparatively even, and the ejection of compact of the discharge gate of being convenient for prevents that raw materials and ball from piling up too much. Compare the feeding dolly that needs frequently to change the bottom welt among the prior art, the utility model provides a ball mill feed arrangement effectively protects the bottom plate of ball mill feeding car, need not to frequently change the feeding efficiency of the ball mill feeding car of bottom plate and greatly improves, has solved the ball mill feeding dolly among the prior art effectively and need frequently change the welt and cause its lower technical problem of feeding efficiency.

Preferably, the wall of the feeding barrel is provided with wear-resistant lining plates which are annularly arranged, the highest position of each wear-resistant lining plate is not lower than the highest position of the discharge port, the lowest position of each wear-resistant lining plate is not higher than the lowest position of the discharge port, and the highest position of the bottom plate is connected to the position of the lower end of each wear-resistant lining plate. The setting of wear-resisting welt can protect the feeding section of thick bamboo inner wall of feed inlet position department, prevents that the feeding section of thick bamboo inner wall of feed inlet position from being collided the damage, and its highest position and lowest position can cover the feeding section of thick bamboo inner wall at discharge gate place completely. The highest position of the bottom plate can be tightly propped against the bottom end of the wear-resistant lining plate, so that the connection is convenient and the support is firm.

Preferably, a discharge pipeline which horizontally extends towards the outside of the feeding cylinder is connected to the discharge port. The discharge pipeline is arranged to facilitate the connection of the ball mill feeding vehicle and the ball mill feeding pipeline, and the discharge pipeline can also guide the raw materials to be ground and grinding balls out of the discharge port.

Preferably, a connecting flange is arranged on the discharging pipeline, and the discharging pipeline is detachably connected with a feeding pipeline of the ball mill through the connecting flange. The connecting flange is reliable in matching and compact in connection, the discharging pipeline and the feeding pipeline are convenient to connect closely, and the connecting flange is convenient to detach and overhaul.

Preferably, a pipeline wear-resistant bushing is arranged on the inner wall of the discharge pipeline. The wear-resisting bush of pipeline is worn and torn the protection to ejection of compact pipeline, extension ejection of compact pipeline life.

Preferably, the bottom plate of the material containing inner cavity is a flat plate. The thickness of the raw material buffer layer is more uniform by the flat plate, so that the acceptance of the bottom plate is the same everywhere, and the bottom plate is effectively protected.

Preferably, the ball mill feeding device comprises a telescopic driving mechanism for driving the ball mill feeding trolley to reciprocate. The telescopic driving mechanism can drive the ball mill feeding vehicle to be close to and far away from the ball mill, and the ball mill feeding vehicle is convenient to assemble and maintain.

Preferably, the telescopic driving mechanism is a hydraulic cylinder connected to the ball mill feeding vehicle. The hydraulic cylinder is a common hydraulic device, can provide reliable pulling force and pushing force, and is convenient for the movement of the ball-milling feeding vehicle.

Preferably, the ball mill feeding device further comprises a rail laid at the bottom of the ball mill feeding vehicle, and the rollers move in a guiding mode on the rail. The arrangement of the track enables the ball mill feeding vehicle to move more stably, and the advancing direction and the route are more accurate.

Preferably, the feeding cylinder is a straight cylinder extending up and down. The straight-tube-shaped feeding barrel is convenient to process, and the overall stability of the feeding barrel after being assembled on the frame is improved.

Drawings

Fig. 1 is a schematic structural diagram of a feeding device of a ball mill in an embodiment 1 according to the present invention;

description of reference numerals:

1. a ball mill feeding vehicle; 2. a track; 3. a hydraulic cylinder; 301. a connecting rod; 4. a roller; 5. a frame; 6. a feeding cylinder; 7. a discharge port; 8. a discharge pipeline; 9. a connecting flange; 10. a pipeline wear-resistant bushing; 11. a wear-resistant lining plate; 12. a base plate; 13. a raw material buffer layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, which may be present, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrases "comprising an … …," or the like, do not exclude the presence of such elements, processes, or methods.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.

The present invention will be described in further detail with reference to examples.

The utility model provides a ball mill feed arrangement's embodiment 1:

the utility model provides a ball mill feed arrangement is connected with the ball mill when using to mixed the grinding ball of treating the grinding raw materials to the ball mill filling. Wherein, the utility model discloses used ball mill is the same with the ball mill structure among the prior art, and the ball mill includes the inner tube and sets up the charge-in pipeline on the inner tube.

As shown in fig. 1, the ball mill feeding device comprises a rail 2 laid beside the ball mill in use and a ball mill feeding wagon 1 guided to be fitted on the rail 2. The ball mill feeding vehicle 1 comprises a vehicle frame 5 and rollers 4 assembled at the bottom of the vehicle frame 5, and the rollers 4 are in guiding fit with the rails 2. In the embodiment, the rail 2 is a steel rail, the steel rail extends along the horizontal direction on one side of the ball mill, and the trend of the rail can be changed according to the arrangement position and the arrangement direction of the ball mill in other embodiments. As shown in fig. 1, the ball mill feeding cart 1 further includes a feeding cylinder 6 assembled on the frame 5, the feeding cylinder 6 has a material containing cavity for receiving the raw material to be ground and the grinding balls, the feeding cylinder 6 is provided with a feeding port and a discharging port 7, the feeding port is used for filling the feeding cylinder 6 with the raw material to be ground and the grinding balls, and the discharging port 7 is used for discharging the material to the ball mill feeding pipeline.

As shown in fig. 1, the ball mill feeding device further includes a telescopic driving mechanism for driving the ball mill feeding cart 1 to reciprocate on the rail 2. The flexible actuating mechanism in this embodiment is the pneumatic cylinder 3 of connection on frame 5, and horizontally connect has connecting rod 301 on the pneumatic cylinder 3, and connecting rod 301 horizontally connect is on frame 5, thereby it is flexible to drive connecting rod 301 through control pneumatic cylinder 3 and can drive ball mill feeding car 1 reciprocating motion on track 2.

As shown in fig. 1, the feeding cylinder 6 is a vertically extending straight cylinder structure, the upper side of the feeding cylinder 6 is an upward opening, the upper opening of the feeding cylinder 6 forms a feeding port of the feeding cylinder 6, and the raw materials to be ground and grinding balls can be directly filled into the feeding cylinder 6 above the feeding cylinder 6. Wherein, the discharge gate 7 of feed cylinder 6 sets up on the section of thick bamboo wall of feed cylinder 6, and the opening of discharge gate 7 is towards the horizontal direction. As shown in fig. 1, a discharge pipe 8 extending horizontally to the outside of the feed cylinder 6 is welded to the discharge port 7, and the discharge pipe 8 is used for connecting with a feed passage of the ball mill, so that the ball mill feed wagon 1 and the ball mill are connected together. The discharging pipeline 8 is provided with a connecting flange 9, and the discharging pipeline 8 is detachably connected with a feeding pipeline of the ball mill through the connecting flange 9.

As shown in figure 1, the wall of the feeding cylinder 6 where the discharge port 7 is positioned is welded with a wear-resistant lining plate 11 which is arranged annularly. The upper end of the wear-resistant lining plate 11 is higher than the highest position of the discharge port 7, and the lower end of the wear-resistant lining plate 11 is lower than the lowest position of the discharge port 7, so that the wear-resistant lining plate 11 covers the wall of the feeding cylinder 6 where the discharge port 7 is located. As shown in fig. 1, in order to protect the discharge pipe 8 from collision and abrasion, a pipe wear-resistant bushing 10 is disposed on an inner wall of the discharge pipe 8.

As shown in fig. 1, a bottom plate 12 of the material containing cavity of the feeding cylinder 6 is a flat plate, the bottom plate 12 gradually inclines downwards from being far away from the discharge port 7 to being close to the discharge port 7 in the horizontal direction towards which the discharge port 7 faces, the highest position of the bottom plate 12 is lower than the lowest position of the discharge port 7, namely, the whole bottom plate 12 is located below the discharge port 7 in the up-down direction, and the plate surface of the bottom plate 12 is arranged in an inclined manner and faces towards the discharge port 7. Wherein, the highest position of the bottom plate 12 is connected with the position of the lower end of the wear-resistant lining plate 11, and the lowest position of the bottom plate 12 is connected with the inner wall at the bottom end of the feeding cylinder 6 and the corner position of the frame 5. The feeding cylinder 6 forms a buffer space for the accumulation of the raw materials to be ground and the grinding balls on the upper side of the bottom plate 12, as shown in fig. 1, when the raw materials to be ground and the grinding balls are filled into the feeding cylinder 6, a raw material buffer layer 13 formed by the accumulation of the raw materials to be ground and the grinding balls is formed on the upper side of the bottom plate 12, and when the raw material buffer layer 13 is accumulated to the height position of the discharge port 7, the raw materials to be ground and the grinding balls to be filled subsequently can enter the discharge pipeline 8 through the discharge port 7 to be discharged out of the feeding cylinder 6.

In this embodiment, the bottom plate 12 arranged obliquely can reduce the size of the buffer space, thereby reducing the raw materials to be ground and the grinding balls accumulated in the raw material buffer layer 13; the face of bottom plate 12 arranges towards discharge gate 7 and makes raw materials buffer layer 13 from the 12 lowest points of bottom plate to the thickness of piling up of peak even relatively, form raw materials buffer layer 13 back in the buffer space, the follow-up raw materials of treating grinding and the ball of pouring into only can contact with wear-resisting welt 11 and raw materials buffer layer 13, can not produce to fall to bottom plate 12 and collide with and the wearing and tearing influence, the life of feeding section of thick bamboo 6 has greatly been prolonged, thereby make ball mill skip 1 feeding stable, compare in the feeding dolly that needs frequently to change the discharge tube bottom welt among the prior art, 1 feeding efficiency of ball mill skip in this embodiment greatly improves. Through the releasable connection of ejection of compact pipeline 8 and ball mill charge-in pipeline and the setting of flexible actuating mechanism and track 2, the motion of ball mill charging wagon 1 is also more nimble with the maintenance, makes things convenient for ball mill feed arrangement to connect and dismantle on the ball mill, further improves the efficiency of reinforced work, does benefit to the operation regulation and control.

The utility model provides a ball mill feed arrangement's embodiment 2:

the difference from the embodiment 1 is that in the embodiment 1, the lower end of the wear-resistant lining plate 11 is positioned below the lowest position of the feed inlet 7, the highest position of the bottom plate 12 is connected to the position of the lower end of the wear-resistant lining plate 11, and the lowest position of the bottom plate 12 is connected to the corner at the bottom end of the feed inlet 6. In this embodiment, the height of wear-resisting welt from top to bottom increases, and the coverage of wear-resisting welt on the feed cylinder inner wall is bigger promptly, and the bottom plate border of installing wear-resisting welt this moment all with wear-resisting welt fixed connection is covered entirely on the feed cylinder inner wall for example.

The utility model provides a ball mill feed arrangement's embodiment 3:

the difference from the embodiment 1 is that in the embodiment 1, the highest position of the bottom plate 12 is connected with the position of the lower end of the wear-resistant lining plate 11, and the lowest position is connected with the bottom end of the feeding cylinder 6. In this embodiment, in order to reduce the size of buffer space, the lowest position of bottom plate shifts up, and the lowest position of bottom plate is connected on the feed cylinder inner wall below the feed inlet promptly.

The utility model provides a ball mill feed arrangement's embodiment 4:

the difference with embodiment 1 is that in embodiment 1, a discharge pipe 8 extending horizontally to the outside of the feed cylinder 6 is connected to the discharge port 7, the discharge pipe 8 is used for being connected with a feed channel of the ball mill, a wear-resistant bushing is arranged on the inner wall of the discharge pipe 8, and a connecting flange 9 is arranged on the discharge pipe 8. In this embodiment, ejection of compact pipeline passes through adapter sleeve and is connected with ball mill charge-in pipeline, perhaps, ejection of compact pipeline and adapter sleeve are to inserting the connection. In other embodiments, the discharge conduit is inclined downwardly to facilitate discharge of the discharge conduit.

The utility model provides a ball mill feed arrangement's embodiment 5:

the difference from the embodiment 1 is that in the embodiment 1, the bottom plate 12 of the material containing cavity is a flat plate. In this embodiment, the bottom plate of flourishing material inner chamber is the arc, and the arc opening of arc arranges up, and in other embodiments, the arc opening of arc also can arrange downwards.

The utility model provides a ball mill feed arrangement's embodiment 6:

the difference from embodiment 1 is that in embodiment 1, the telescopic driving mechanism is a hydraulic cylinder 3 connected to the ball mill feeding cart 1. In this embodiment, the telescopic driving mechanism is a cylinder. In other embodiments, the telescoping drive mechanism is an electric push rod.

The utility model provides a ball mill feed arrangement's embodiment 7:

the difference from the embodiment 1 is that in the embodiment 1, the feeding cylinder 6 is a straight cylinder extending up and down, and the bottom plate 12 of the material containing cavity of the feeding cylinder 6 is arranged obliquely. In this embodiment, the bottom shrouding that the feed cylinder bottom was provided with horizontal extension. In other embodiments, the feeding cylinder can be a slant cylinder, and the bottom of the feeding cylinder is provided with a slant bottom plate. In other different embodiments, the feed inlet of the feed cylinder may also be arranged on the inner wall of the feed cylinder, and the top of the feed cylinder may be sealed.

Finally, it should be noted that the above mentioned embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that the technical solutions described in the foregoing embodiments may be modified without inventive effort, or some technical features may be substituted equally. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A ball mill feeding device comprises a ball mill feeding vehicle (1), wherein the ball mill feeding vehicle (1) comprises a vehicle frame (5) and rollers (4) assembled at the bottom of the vehicle frame (5), and is characterized in that a feeding cylinder (6) is arranged on the vehicle frame (5), the feeding cylinder (6) is provided with a material containing inner cavity used for containing a material to be ground and grinding balls, a feeding hole is formed in the feeding cylinder (6), and the feeding hole is used for filling the material to be ground and the grinding balls into the feeding cylinder (6); a discharge port (7) with an opening facing to the horizontal direction is formed in the wall of the feeding cylinder (6), and the discharge port (7) is used for discharging materials to a ball mill feeding pipeline;

the bottom plate (12) of the material containing cavity is gradually inclined downwards from being far away from the discharge hole (7) to being close to the discharge hole (7) in the direction towards which the discharge hole (7) faces; the highest position of the bottom plate (12) of the material containing cavity is lower than the lowest position of the discharge hole (7) so as to form a buffer space for accumulating the raw materials to be ground and grinding balls on the upper side of the bottom plate (12) of the material containing cavity, and the raw materials to be ground are accumulated on the upper side of the bottom plate (12) of the material containing cavity to form a raw material buffer layer (13).

2. The feeding device of the ball mill according to the claim 1, characterized in that the wall of the feeding cylinder (6) is provided with wear-resistant lining plates (11) which are arranged in a ring shape, the highest position of the wear-resistant lining plates (11) is not lower than the highest position of the discharge port (7), the lowest position is not higher than the lowest position of the discharge port, and the highest position of the bottom plate (12) is connected with the position of the lower end of the wear-resistant lining plates (11).

3. A bowl mill feeding device according to claim 1, characterized in that a discharge pipe (8) extending horizontally towards the outside of the feed cylinder (6) is connected to the discharge opening (7).

4. A feeding device for a ball mill according to claim 3, characterized in that the discharge pipe (8) is provided with a connecting flange (9), and the connecting flange (9) is used for being detachably connected with the feeding pipe of the ball mill.

5. A ball mill feeding device according to claim 3, characterized in that the inner wall of the discharge pipe (8) is provided with a pipe wear bushing (10).

6. A ball mill feeding device according to any one of claims 1-5, characterized in that the bottom plate (12) of the containing cavity is a flat plate.

7. A ball mill feeding device according to any one of claims 1-5, characterized in that the ball mill feeding device comprises a telescopic driving mechanism for driving the ball mill feeding wagon (1) in a reciprocating motion.

8. A ball mill feeding device according to claim 7, characterized in that the telescopic driving mechanism is a hydraulic cylinder (3) connected to the ball mill feeding wagon (1).

9. A ball mill feeding device according to any one of claims 1-5, characterized in that the ball mill feeding device further comprises rails (2) laid on the bottom of the ball mill feeding wagon (1), the rollers (4) being guided in motion on the rails (2).

10. A ball mill feeding device according to any one of the claims 1-5, characterized in that the feeding cylinder (6) is a straight cylinder extending up and down.