Discharging device of ball mill

Abstract

The utility model discloses a discharging device of a ball mill, which relates to the field of discharging structures, is applied to the ball mill and comprises a screening unit, the screening unit comprises a discharging barrel, a plurality of screening holes are formed in the barrel wall of the discharging barrel, a feeding port is formed in one end of the discharging barrel and connected with the ball mill, and a discharging port is formed in the other end of the discharging barrel; according to the discharging device of the ball mill, small particles and mortar can be effectively separated, materials can be fully screened, and therefore the problems that in the soda ash dissolving process, due to the fact that the sizes of the ground particles are not uniform, and the proportion of steel balls is not reasonable, the materials are not fully screened, a pipeline is prone to being blocked, and equipment abrasion is accelerated are solved.

Description

Technical Field

[0001] The utility model relates to the field of discharging structures, in particular to a discharging device for a ball mill. Background Art

[0002] In the soda ash ash reduction process, the waste sand generated after ash reduction is ground in a ball mill, which is an important material recycling step. The returned sand is ground in the ball mill to form granules, which are then fed into the slurry pump for subsequent processing.

[0003] However, in actual production, the ball mill can produce uneven discharge due to the varying coarseness of the feed sand. Furthermore, an improper steel ball ratio during operation can lead to excessive production of small particles. If these small particles aren't screened out promptly, they can enter the ash disintegrator along with the slurry. Long-term accumulation can lead to pipe blockage and increased wear on equipment like slurry pumps, severely impacting production efficiency and equipment life.

[0004] Therefore, it is necessary to design a ball mill discharging device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a ball mill discharging device, which can solve the problems of insufficient material screening, easy pipe blockage and accelerated equipment wear caused by uneven size of particles after grinding and unreasonable ratio of steel balls in the soda ash ash process.

[0006] The above-mentioned optimized structure of the present utility model is realized through the following technical solutions: a ball mill discharging device, applied to the ball mill, including a screening unit, the screening unit including a discharging barrel, a plurality of screening holes are provided on the barrel wall of the discharging barrel, a feed port is provided at one end of the discharging barrel, the feed port is connected to the ball mill, and a discharge port is provided at the other end of the discharging barrel.

[0007] In some embodiments, the ball mill includes a ball mill body, a sand return feed portion is provided at one end of the ball mill body, and a particle material output portion is provided at the other end of the ball mill body, and the particle material output portion is coaxially connected to the feed port.

[0008] In some embodiments, the discharge cylinder is a conical cylinder, and the diameter of the feed port is larger than the diameter of the discharge port.

[0009] In some embodiments, a limiting ring is provided at one end of the discharging cylinder, and the limiting ring is provided at one end of the discharging cylinder close to the discharging port.

[0010] In some embodiments, a reinforcement ring is provided at one end of the discharge barrel close to the feed port.

[0011] In some embodiments, at least two spiral belts are provided on the inner wall of the discharge barrel.

[0012] In some embodiments, there are two spiral belts, and the pitch between the two spiral belts is 100MM.

[0013] In some embodiments, the spiral band is a left-handed spiral band, and the height of the spiral band is 50MM.

[0014] In some embodiments, the diameter of the discharge port is 450 MM, the diameter of the feed port is 650 MM, the height of the discharge cylinder is 700 MM, and the diameter of the sieve hole is 10 MM.

[0015] In summary, the present invention has the following beneficial effects:

[0016] This type of ball mill discharging device can effectively separate small particles and slurry by arranging multiple screening holes on the discharging barrel, thereby achieving sufficient screening of materials, thereby solving the problems of insufficient material screening, easy blockage of pipelines and accelerated equipment wear caused by uneven size of particles after grinding and unreasonable ratio of steel balls in the soda ash ash process; at the same time, multiple spiral belts are arranged on the inner wall of the discharging barrel, which can drive the material to be turned and mixed during the screening process, thereby improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the utility model installed on a ball mill;

[0018] Figure 2 It is a structural diagram of the utility model;

[0019] Figure 3 This is a structural diagram from another perspective of the present invention.

[0020] In the figure: 1. Ball mill; 11. Mill body; 12. Return sand feed section; 13. Particle material output section; 2. Screening unit; 21. Discharge barrel; 22. Screen hole; 23. Discharge port; 24. Feed port; 25. Limiting ring; 26. Reinforcement ring; 3. Spiral belt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] refer to Figure 1-3A ball mill discharging device is used on a ball mill 1. The ball mill 1 includes a ball mill body 11. A sand return feeding part 12 is provided at one end of the ball mill body 11. A particle material output part 13 is provided at the other end of the ball mill body 11. The particle material output part 13 is coaxially connected with a screening unit 2, which can effectively separate small particles and slurry, and realize sufficient screening of materials, thereby solving the problems of insufficient material screening, easy blockage of pipelines and accelerated equipment wear caused by uneven size of particles after grinding and unreasonable ratio of steel balls in the soda ash ash process.

[0023] In some embodiments, the screening unit 2 includes a discharge barrel 21, and a plurality of screening holes 22 are provided on the wall of the discharge barrel 21 for screening the granular materials entering the discharge barrel 21. A feed port 24 is provided at one end of the discharge barrel 21, and the feed port 24 is connected to the granular material output part 13 to receive the material after being ground by the ball mill. A discharge port 23 is provided at the other end of the discharge barrel 21 for discharging the screened material.

[0024] In some embodiments, the discharge barrel 21 may be a conical barrel, and the diameter of the discharge port 23 may be smaller than the diameter of the feed port 24, which is conducive to the formation of vortexes in the material in the discharge barrel 21 and improves the screening effect; at the same time, the feed port 24 is larger than the discharge port 23, which can increase the connection area between the discharge barrel 21 and the ball mill body 11, and increase the connection strength between the discharge barrel 21 and the ball mill body 11.

[0025] In some embodiments, a reinforcement ring 26 is provided at one end of the discharge barrel 21 near the feed port 24, which can be welded and fixed to fix and support the discharge barrel 21 to prevent it from shaking during use. At the same time, it can provide pre-positioning when the discharge barrel 21 is installed on the ball mill 1.

[0026] In some embodiments, a limiting ring 25 is provided at one end of the discharge barrel 21 near the discharge port 23, which can be fixed by welding to increase the structural strength of the discharge barrel 21 and improve its service life.

[0027] In some embodiments, at least two spiral belts 3 are provided on the inner wall of the discharge barrel 21, which can be welded and fixed. The pitch between the two spiral belts 3 can be 100MM, and the height of the spiral belt 3 can be 50MM. When the discharge barrel 21 rotates, the rotation of the spiral belt 3 can continuously and stably discharge small particles from the discharge port 23, thereby realizing efficient and sufficient screening of the material; the spiral belt 3 can be a left-handed spiral belt, which can be opposite to the rotation direction of the ball mill 1, and can increase the residence time of the material in the discharge barrel 21, thereby realizing more sufficient screening.

[0028] In some embodiments, the diameter of the discharge port 23 can be 450 mm, the diameter of the feed port 24 can be 650 mm, the height of the discharge cylinder 21 can be 700 mm, and the diameter of the sieve hole 22 can be 10 mm. These parameters can be adjusted according to actual production needs to achieve the best screening effect.

[0029] Here’s how it works:

[0030] During the operation of the ball mill, the ground material passes through the particle output portion 13, the feed port 24 of the screening unit 2, and enters the discharge barrel 21. Since the discharge barrel 21 is a conical barrel, the material forms a vortex under the action of gravity and rotational force, and is driven by the spiral belt 3 to turn and mix.

[0031] During this process, small particles, due to their large size, cannot be discharged through the sieve holes 22 and remain in the discharge barrel 21, continuing to move toward the discharge port 23. The slurry is discharged through the sieve holes 22, collected, and then sent to subsequent processing equipment. This achieves the separation of small particles and slurry, preventing small particles from mixing with the slurry and entering the slurry pump, causing pipe blockage and equipment wear.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A ball mill discharging device, applied to a ball mill (1), characterized by: The present invention comprises a screening unit (2), wherein the screening unit (2) comprises a discharge barrel (21), a plurality of screening holes (22) are provided on the barrel wall of the discharge barrel (21), a feed port (24) is provided at one end of the discharge barrel (21), the feed port (24) is connected to the ball mill (1), and a discharge port (23) is provided at the other end of the discharge barrel (21).

2. A ball mill discharging device according to claim 1, characterized in that: The ball mill (1) comprises a ball mill body (11), one end of the ball mill body (11) is provided with a sand return feed portion (12), the other end of the ball mill body (11) is provided with a particle material output portion (13), and the particle material output portion (13) is coaxially connected to the feed port (24).

3. A ball mill discharging device according to claim 1, characterized in that: The discharge cylinder (21) is a conical cylinder, and the diameter of the feed port (24) is larger than the diameter of the discharge port (23).

4. A ball mill discharging device according to claim 1, characterized in that: A limiting ring (25) is provided at one end of the discharge barrel (21), and the limiting ring (25) is provided at one end of the discharge barrel (21) close to the discharge port (23).

5. A ball mill discharging device according to claim 1, characterized in that: A reinforcement ring (26) is provided at one end of the discharge barrel (21) close to the feed port (24).

6. A ball mill discharging device according to claim 1, characterized in that: At least two spiral belts (3) are provided on the inner wall of the discharge barrel (21).

7. A ball mill discharging device according to claim 6, characterized in that: There are two spiral belts (3), and the pitch between the two spiral belts (3) is 100MM.

8. A ball mill discharging device according to claim 6, characterized in that: The spiral band (3) is a left-handed spiral band, and the height of the spiral band (3) is 50 mm.

9. A ball mill discharging device according to claim 1, characterized in that: The diameter of the discharge port (23) is 450 mm, the diameter of the feed port (24) is 650 mm, the height of the discharge cylinder (21) is 700 mm, and the diameter of the sieve hole (22) is 10 mm.

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