Ball feeding mechanism of vertical mill

Abstract

The utility model discloses a vertical mill ball feeding mechanism which comprises a vertical mill body, the cross section of a discharging pipe is J-shaped, the inner bottom face of a transverse pipe of the discharging pipe is obliquely arranged downwards in the direction of the output end of the discharging pipe, a limiting ring is fixedly sleeved on the discharging pipe, and the limiting ring is arranged under a disc and attached to the surface of the disc. A vertical pipe of the discharging pipe is fixedly sleeved with an outer gear ring, the outer gear ring is sleeved with an inner gear ring in a meshed mode, the top face of the inner gear ring is fixedly connected with the bottom face of the storage barrel, and the inner wall of the storage barrel is rotationally connected with a disc with the discharging pipe through a connecting assembly. The rotating shaft on the vertical mill body rotates to drive the discharging pipe to revolve around the rotating shaft on the vertical mill body through the disc, so that the positions of grinding balls discharged by the discharging pipe falling into the grinding cavity of the vertical mill body are changed at any time, the accumulation phenomenon of the grinding balls is reduced, and ore pulp grinding is facilitated.

Description

Technical Field:

[0001] The utility model relates to the technical field of pulp processing, and particularly relates to a ball adding mechanism for a vertical mill. Background Art:

[0002] After the pulp passes through the screening and processing process of a hydrocyclone, it enters a vertical mill. After being ground by the vertical mill, it flows into a discharge chute from the discharge port of the vertical mill. Workers need to intermittently add grinding balls from a feed hopper along the ball adding mechanism into the grinding chamber of the vertical mill body to assist in grinding the pulp to improve the grinding efficiency of the pulp.

[0003] The existing ball adding mechanism mainly consists of a storage bucket and a discharge pipe. The discharge pipe is fixedly connected and communicated at the bottom of the storage bucket. The grinding balls added to the storage bucket are discharged into the grinding chamber of the vertical mill body along the discharge pipe. The positions of the storage bucket and the discharge pipe are fixed and unchanged. The positions where the grinding balls discharged from the discharge pipe fall into the grinding chamber of the vertical mill body are unchanged. Multiple discharged grinding balls are likely to accumulate in the grinding chamber, causing jamming when the grinding disc of the vertical mill rotates and making it inconvenient for pulp grinding. Content of the Utility Model:

[0004] Therefore, the purpose of the present utility model is to provide a ball adding mechanism for a vertical mill to overcome the problems in the prior art that the existing ball adding mechanism mainly consists of a storage bucket and a discharge pipe, the discharge pipe is fixedly connected and communicated at the bottom of the storage bucket, the grinding balls added to the storage bucket are discharged into the grinding chamber of the vertical mill body along the discharge pipe, the positions of the storage bucket and the discharge pipe are fixed and unchanged, the positions where the grinding balls discharged from the discharge pipe fall into the grinding chamber of the vertical mill body are unchanged, multiple discharged grinding balls are likely to accumulate in the grinding chamber, causing jamming when the grinding disc of the vertical mill rotates and making it inconvenient for pulp grinding.

[0005] The present utility model is implemented by the following technical solutions:

[0006] A ball adding mechanism for a vertical mill, including a vertical mill body. A storage bucket is provided directly above the grinding chamber of the vertical mill body. The storage bucket is fixedly connected to the vertical mill body. A disc is rotatably connected in the storage bucket through a connecting component. A cavity for loading materials is formed between the storage bucket and the disc. The disc is fixedly sleeved on the rotating shaft of the vertical mill body. A discharge pipe is rotatably arranged through the disc. The discharge pipe is located above the grinding chamber of the vertical mill body. The rotation of the rotating shaft on the vertical mill body can drive the discharge pipe to revolve around the rotating shaft on the vertical mill body through the disc.

[0007] Preferably, the cross-sectional shape of the discharge pipe is J-shaped, and the inner bottom surface of the horizontal pipe of the discharge pipe is inclined downward along the output end direction of the discharge pipe.

[0008] Preferably, the connecting component includes a dovetail groove and a plurality of dovetail blocks. The dovetail blocks are slidably arranged in the dovetail groove. The dovetail blocks are arranged around the disc and fixedly connected to its outer arc surface. The dovetail groove is annularly formed on the inner wall of the storage barrel.

[0009] Preferably, the top surface of the disc is an inclined surface and the inclination direction is downward along the direction close to the input end of the discharge pipe.

[0010] Preferably, a limiting ring is fixedly sleeved on the discharge pipe. The limiting ring is arranged directly below the disc and is in contact with its surface.

[0011] Preferably, an external gear ring is fixedly sleeved on the vertical pipe of the discharge pipe. An internal gear ring is meshed and sleeved on the external gear ring. The top surface of the internal gear ring is fixedly connected to the bottom surface of the storage barrel.

[0012] Advantages of the present utility model: The inner wall of the storage barrel is rotationally connected with a disc with a discharge pipe through a connecting component. The rotation of the rotating shaft on the vertical mill body can drive the discharge pipe to revolve around the rotating shaft on the vertical mill body through the disc, so that the position where the grinding balls discharged from the discharge pipe fall into the grinding cavity of the vertical mill body changes constantly, reducing the occurrence of grinding ball accumulation phenomenon and facilitating the grinding of pulp. Description of the drawings:

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is the structural diagram of the present utility model;

[0015] Figure 2 It is the three-dimensional structural diagram of the present utility model.

[0016] In the figure: vertical mill body 1, storage barrel 2, disc 3, dovetail block 4, dovetail groove 5, discharge pipe 6, limiting ring 7, internal gear ring 8, external gear ring 9. Specific embodiments:

[0017] In order to make the purpose and advantages of the present utility model clearer, the following further describes the present utility model in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention and do not limit the protection scope of the present invention.

[0019] It should be noted that in the description of the present invention, the terms indicating the direction or positional relationship such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the direction or positional relationship shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0020] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] As Figure 1 - Figure 2 shown, the present invention provides the following technical solution: a ball adding mechanism for a vertical mill, including a vertical mill body 1. A storage bucket 2 is provided directly above the grinding chamber of the vertical mill body 1. The storage bucket 2 is fixedly connected to the vertical mill body 1. A disc 3 is rotatably connected to the storage bucket 2 through a connection component. A cavity for loading materials is formed between the storage bucket 2 and the disc 3. The disc 3 is fixedly sleeved on the rotating shaft of the vertical mill body 1. A discharge pipe 6 is rotatably arranged through the disc 3. The discharge pipe 6 is located above the grinding chamber of the vertical mill body 1. When the rotating shaft on the vertical mill body 1 rotates, it can drive the discharge pipe 6 to revolve around the rotating shaft on the vertical mill body 1 through the disc 3.

[0022] Please refer to Figure 1 shown. During the use process, the pulp enters the vertical mill after being screened and processed by a hydrocyclone. The rotating shaft of the vertical mill body 1 drives the grinding disc to rotate to grind the pulp. The ground pulp then flows into the discharge chute from the discharge port of the vertical mill body. When it is necessary to add grinding balls to the grinding chamber of the vertical mill body, the staff adds the grinding balls into the storage bucket 2 through the feed funnel. The grinding balls entering the storage bucket 2 are discharged from the discharge pipe 6. The rotating shaft of the vertical mill body drives the disc 3 to rotate, and the disc 3 drives the discharge pipe 6 to rotate, so that the position where the grinding balls discharged from the discharge pipe 6 fall into the grinding chamber of the vertical mill body 1 changes constantly, reducing the occurrence of grinding ball accumulation and facilitating the grinding of the pulp.

[0023] The cross-sectional shape of the discharge pipe 6 is J-shaped, and the inner bottom surface of the horizontal pipe of the discharge pipe 6 is inclined downward along the output end direction of the discharge pipe 6.

[0024] Please refer to Figure 1 As shown, during use, the grinding balls are discharged along the discharge pipe 6. The inner bottom surface of the horizontal pipe of the discharge pipe 6 is inclined downward along the output end direction of the discharge pipe 6, facilitating the discharge of the grinding balls entering the discharge pipe 6 along the inner bottom surface of the horizontal pipe of the discharge pipe 6.

[0025] Please refer to Figure 1 、 Figure 2 As shown, for the connection component embodiment, the connection component includes a dovetail groove 5 and a plurality of dovetail blocks 4. The dovetail blocks 4 are slidably arranged in the dovetail groove 5. The dovetail blocks 4 are arranged around the disk 3 and fixedly connected to its outer arc surface. The dovetail groove 5 is annularly formed on the inner wall of the storage barrel 2.

[0026] Please refer to Figure 1 As shown, during use, the rotating shaft of the vertical mill body drives the disk 3 to rotate. The disk 3 drives the dovetail blocks 4 to slide in the dovetail groove 5. The combination of the dovetail blocks 4 and the dovetail groove 5 ensures the stability of the connection between the storage barrel 2 and the disk 3, facilitating the stable rotation of the disk 3 in the storage barrel 2.

[0027] The top surface of the disk 3 is an inclined surface and is inclined downward along the direction close to the input end of the discharge pipe 6.

[0028] Please refer to Figure 1 As shown, during use, the grinding balls entering the storage barrel 2 fall onto the top surface of the disk 3 and are discharged into the discharge pipe 6 along the inclined surface of the top surface of the disk 3, reducing the accumulation of grinding balls in the storage barrel 2.

[0029] A limit ring 7 is fixedly sleeved on the discharge pipe 6. The limit ring 7 is arranged directly below the disk 3 and is in contact with its surface.

[0030] Please refer to Figure 1 As shown, during use, the setting of the limit ring 7 effectively prevents the discharge pipe 6 from moving upward, ensuring the normal rotation of the discharge pipe 6.

[0031] An external gear ring 9 is fixedly sleeved on the vertical pipe of the discharge pipe 6. An internal gear ring 8 is meshed and sleeved on the external gear ring 9. The top surface of the internal gear ring 8 is fixedly connected to the bottom surface of the storage barrel 2.

[0032] Please refer to Figure 1As shown, during the use process, the disc 3 drives the discharge pipe 6 to revolve around the rotation axis of the vertical mill body 1. The discharge pipe 6 drives the outer tooth ring 9 to rotate on the inner tooth ring 8. The inner tooth ring 8 drives the outer tooth ring 9 to rotate self - rotatively. The outer tooth ring 9 drives the discharge pipe 6 to rotate self - rotatively, causing the output end of the discharge pipe 6 to rotate self - rotatively. As a result, the position where the grinding balls discharged from the discharge pipe 6 fall into the grinding chamber of the vertical mill body 1 changes constantly. The self - rotating discharge pipe 6 will discharge the grinding balls onto the grinding disc in the vertical mill body 1. The rotating grinding disc throws the grinding balls falling on the top surface of the grinding disc into the grinding chamber of the vertical mill body 1, reducing the occurrence of grinding ball accumulation phenomenon.

[0033] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A ball-adding mechanism for a vertical mill, comprising a vertical mill body. A storage bin is provided directly above the grinding chamber of the vertical mill body, and the storage bin is fixedly connected to the vertical mill body. It is characterized in that: A disc is rotatably connected inside the storage bucket through a connection component. A cavity for loading materials is formed between the storage bucket and the disc. The disc is fixedly sleeved on the rotating shaft of the vertical mill body. A discharge pipe is rotatably arranged through the disc. The discharge pipe is located above the grinding cavity of the vertical mill body. When the rotating shaft on the vertical mill body rotates, the discharge pipe can be driven by the disc to revolve around the rotating shaft on the vertical mill body.

2. The ball adding mechanism of a vertical mill according to claim 1, characterized in that: The cross-sectional shape of the discharge pipe is J-shaped, and the inner bottom surface of the horizontal pipe of the discharge pipe is inclined downward along the output end direction of the discharge pipe.

3. The ball adding mechanism of a vertical mill according to claim 2, characterized in that: The connection component includes a dovetail groove and a plurality of dovetail blocks. The dovetail blocks are slidably arranged in the dovetail groove. The dovetail blocks are arranged around the disc and fixedly connected to its outer arc surface. The dovetail groove is annularly opened on the inner wall of the storage bucket.

4. The ball adding mechanism of a vertical mill according to claim 3, characterized in that: The top surface of the disc is an inclined surface, and the inclined direction is inclined downward along the direction close to the input end of the discharge pipe.

5. A ball adding mechanism for a vertical mill according to claim 3 or 4, characterized in that: A limiting ring is fixedly sleeved on the discharge pipe. The limiting ring is arranged directly below the disc and is in contact with its surface.

6. The ball adding mechanism of a vertical mill according to claim 2, characterized in that: An external gear ring is fixedly sleeved on the vertical pipe of the discharge pipe. An internal gear ring is meshed and sleeved on the external gear ring. The top surface of the internal gear ring is fixedly connected to the bottom surface of the storage bucket.

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