Ball blocking and coarse material filtering device for unloading of small-sized experimental ball mill

Abstract

The utility model discloses a ball blocking and coarse filtering device for unloading of a small experimental ball mill, which is characterized in that one end of a filter ball pipe is provided with a feed port used for being connected with an outlet of an unloading end of the ball mill, the other end of the filter ball pipe is connected with a coarse filtering container, a filter ball plate is arranged in the filter ball pipe, and a plurality of through holes are formed in the filter ball plate; discharge holes are uniformly formed in one end of the coarse filter container, slurry in the ball mill sequentially enters the discharge pipe and the filter ball pipe when being discharged, steel balls mixed with the slurry are blocked in the filter ball pipe through the filter ball plate, the steel balls are effectively prevented from entering the subsequent process, and meanwhile, the filter ball plate which is slightly inclined is easier to discharge when the ball mill rotates to discharge; the slurry enters the coarse filtering container through the through holes formed in the filter ball plate, fine-particle slurry is discharged, and coarse-particle materials are blocked in the coarse filtering container through the formed discharging holes, so that the coarse-particle materials are effectively prevented from entering the flotation machine, the abrasion of a stirring shaft of the flotation machine is reduced, and the test quality is improved.

Description

Technical Field

[0001] The utility model belongs to the field of ore dressing equipment, in particular to a ball retaining and coarse filtering device used for unloading of an experimental small ball mill. Background Art

[0002] Flotation is one of the important methods of mineral processing. When conducting flotation experiments in the laboratory, the particle size requirements for the selected materials are relatively high, generally reaching about 0.074mm, so it is necessary to first crush the materials to about 2mm, and then grind them to about 0.074mm. The commonly used equipment for grinding is a ball mill. The cylinder of the ball mill is generally equipped with steel balls of different sizes to grind the ore. The steel balls as grinding media are easily mixed into the slurry during the unloading process; at the same time, because some materials are hard, they cannot be ground finely during the grinding process, and some coarse particles exist in the slurry. The steel balls and coarse particles mixed into the slurry enter the flotation machine, which not only easily reduces the life of the flotation machine stirring shaft, but also affects the flotation effect. Utility Model Content

[0003] The utility model aims to provide a ball retaining and coarse filtering device for unloading of a small-sized ball mill for experiments.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A ball-blocking coarse filtering device for experimental small-scale ball mill unloading comprises a ball filter tube and a coarse filtering container, one end of the ball filter tube is provided with a feed port for connecting with the discharge outlet of the ball mill, the other end of the ball filter tube is connected with the coarse filtering container, a ball filter plate is arranged inside the ball filter tube, a plurality of through holes are arranged on the ball filter plate, and one end of the coarse filtering container is evenly provided with discharge holes.

[0006] A further technical solution is that the feed inlet of the filter ball tube is connected to the discharge outlet of the ball mill through a discharge pipe.

[0007] A further technical solution is that the filter ball plate is arranged obliquely inside the filter ball tube.

[0008] A further technical solution is that the filter ball tube and the coarse filter container are connected via threads.

[0009] A further technical solution is that the filter ball pipe is connected to the discharge pipe via threads.

[0010] A further technical solution is that the discharge pipe, filter ball pipe, filter ball plate and coarse filter container are all made of stainless steel.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0012] A feeding port for connecting with the outlet of the discharge end of the ball mill is arranged at one end of the filter ball tube, the other end of the filter ball tube is connected with the coarse filter container, a filter ball plate is arranged inside the filter ball tube, a plurality of through holes are arranged on the filter ball plate, and discharge holes are evenly arranged at one end of the coarse filter container. The discharge end of the ball mill is slightly tilted downward and the ball mill motor is started to rotate, the slurry in the ball mill enters the discharge pipe and the filter ball tube in turn, the steel balls mixed into the slurry are blocked in the filter ball tube by the filter ball plate, and the discharge end of the ball mill is slightly raised after the discharge is completed to return to the ball mill, which effectively prevents the steel balls from entering the subsequent process, and at the same time, the slightly tilted filter ball plate is easier to discharge when the ball mill rotates to discharge; the slurry enters the coarse filter container through the through holes arranged on the filter ball plate, the fine particle slurry is discharged, and the coarse particle material is blocked in the coarse filter container by the set discharge holes, which effectively prevents the coarse particle material from entering the flotation machine, reduces the wear of the stirring shaft of the flotation machine, and improves the test quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the filter ball tube structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the coarse filter container of the utility model;

[0016] Figure 4 It is a right side schematic diagram of the coarse filter container of the present utility model. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] like Figure 1-Figure 4 A ball-blocking and coarse filtering device for experimental small-scale ball mill unloading comprises a ball filter tube 2 and a coarse filtering container 4. One end of the ball filter tube 2 is provided with a feed port for connecting to an outlet 12 of a ball mill unloading end, and the other end of the ball filter tube 2 is connected to the coarse filtering container 4. A ball filter plate 3 is provided inside the ball filter tube 2, and a plurality of through holes 9 are provided on the ball filter plate 3. One end of the coarse filtering container 4 is evenly provided with discharge holes 10.

[0019] When using the ball-blocking and coarse filtering device of the utility model to unload the ball mill, firstly, the operating handle is inserted into the unloading pipe 1 welded to the unloading end 11 of the ball mill, and the unloading valve 13 of the ball mill is opened, and then the filter ball pipe 2 and the coarse filtering container 4 are connected together by threads, and connected to the unloading pipe 1 by threads; after the connection is completed, the unloading end 11 of the ball mill is slightly tilted downward and the ball mill motor is started to rotate, and the slurry in the ball mill enters the unloading pipe 1 and the filter ball pipe 2 in turn, and the steel balls mixed in the slurry are filtered out through the filter ball plate 3. The ball filter is blocked in the filter tube 2, and after the unloading is completed, the ball mill discharge end 11 can be slightly raised to return to the ball mill, which effectively prevents the steel balls from entering the subsequent process. At the same time, the slightly tilted filter ball plate 3 is easier to discharge when the ball mill rotates to discharge; the slurry enters the coarse filter container 4 through the through hole 9 set in the filter ball plate 3, and the fine particle slurry is discharged, while the coarse particle material is blocked in the coarse filter container 4 by the discharge hole 10 set, which effectively prevents the coarse particle material from entering the flotation machine, reduces the wear of the flotation machine stirring shaft, and improves the test quality. In addition, the material of the filter ball coarse filter device is stainless steel, which effectively prevents the rust and corrosion caused by water and prolongs the service life.

[0020] The feed port of the filter ball tube 2 is connected to the discharge end outlet 12 of the ball mill through the discharge pipe 1. The left end of the discharge pipe 1 is vertically welded to the discharge end 11 of the ball mill, and the right end is processed with an external thread 5. The size of the discharge pipe 1 is slightly larger than the discharge end outlet 12 of the ball mill. The purpose of setting the discharge pipe 1 is to facilitate the connection between the filter ball tube and the discharge end outlet 12 of the ball mill. The inner diameter of the filter ball tube 2 matches the outer diameter of the discharge pipe 1, and the outer diameter matches the inner diameter of the coarse filter container 4.

[0021] The filter ball plate 3 is tiltedly arranged inside the filter ball tube 2, which can increase the contact area between the filter ball plate 3 and the material and speed up the discharge of the material. The size of the through hole 9 on the filter ball plate 3 is slightly smaller than the minimum grinding medium size of the ball mill.

[0022] The filter ball tube 2 and the coarse filter container 4 are connected by threads. The left end of the filter ball tube 2 is processed with an internal thread 6, and the right end of the filter ball tube 2 is processed with an external thread 7. The filter ball plate 3 is welded obliquely to the middle section of the filter ball tube 2. The internal thread at the left end of the filter ball tube 2 is connected with the external thread at the right end of the discharge pipe 1. The right end of the coarse filter container 4 is evenly provided with discharge holes 10, the size of which is ≤2mm.

[0023] The filter ball tube 2 is connected to the discharge pipe 1 through threads. The coarse filter container 4 is a cylindrical container with an internal thread 8 processed at the left end, and the internal thread at the left end is connected to the external thread at the right end of the filter ball tube 2.

[0024] The discharge pipe 1, the filter ball pipe 2, the filter ball plate 3 and the coarse filter container 4 are all made of stainless steel.

[0025] The above are only preferred embodiments of the present invention.

Claims

1. A ball retaining and filtering device for unloading of a small ball mill, characterized in that: The invention comprises a ball filter tube (2) and a coarse filter container (4), wherein one end of the ball filter tube (2) is provided with a feed port for connecting to an outlet (12) of a ball mill discharge end, and the other end of the ball filter tube (2) is connected to the coarse filter container (4). A ball filter plate (3) is arranged inside the ball filter tube (2), and a plurality of through holes (9) are arranged on the ball filter plate (3). One end of the coarse filter container (4) is evenly provided with discharge holes (10).

2. The ball retaining and filtering device for unloading of a small-sized ball mill according to claim 1 is characterized in that: The feed inlet of the filter ball tube (2) is connected to the discharge outlet (12) of the ball mill via a discharge pipe (1).

3. The ball retaining and filtering device for unloading of a small-sized ball mill according to claim 2 is characterized in that: The filter ball plate (3) is arranged obliquely inside the filter ball tube (2).

4. The ball retaining and filtering device for unloading of a small-sized ball mill according to claim 3 is characterized in that: The ball filter tube (2) and the coarse filter container (4) are connected via threads.

5. The ball retaining and filtering device for unloading of a small-sized ball mill according to claim 4 is characterized in that: The filter ball tube (2) is connected to the discharge tube (1) via threads.

6. The ball retaining and filtering device for experimental small ball mill unloading according to claim 5 is characterized in that: The discharge pipe (1), the filter ball pipe (2), the filter ball plate (3) and the coarse filter container (4) are all made of stainless steel.

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