Roller of rod mill for laboratory

Abstract

The utility model relates to a rod mill roller for a laboratory, which comprises an inner cylinder, a middle cylinder and an outer cylinder which are fixedly connected in sequence from inside to outside, the height of the middle cylinder is larger than that of the inner cylinder and smaller than that of the outer cylinder, an inner end cover for covering the inner cylinder is arranged in the middle cylinder, and a middle end cover for covering the middle cylinder is arranged in the outer cylinder. A fixing pipe is further arranged between the inner end cover and the middle end cover, and the top face of the fixing pipe is flush with the top face of the middle cylinder. The outer cylinder is further provided with a fixing structure for fixing the middle end cover / the inner end cover. According to the utility model, the grinding space is adjusted according to the grinding amount, so that the grinding effect is ensured, and meanwhile, two materials can be ground at the same time, so that the experiment contrast conditions are ensured to be the same, and the grinding efficiency can also be improved.

Description

Technical Field

[0001] The utility model relates to the field of grinding, in particular to the technical field of rod mills, and specifically refers to a rod mill roller for laboratories. Background Art

[0002] XMB three-roller four-barrel rod mill is a new type of small, lightweight and multi-purpose grinding equipment for laboratory use. It can grind ores with a single or multiple rollers at the same time, and can be used in both dry and wet conditions. It can be used to grind ores in fineness when conducting selectivity research.

[0003] Control experiments are often used in laboratories, which requires the same roller to be used for grinding. The amount of grinding needs to be determined according to the experimental group, which leads to the instability of the grinding amount. At the same time, in order to save grinding time, when two materials need to be ground in the same roller, the two materials need to be separated. In current experiments, when multiple rollers are used for grinding, differences in control conditions will occur. When the same roller is used for grinding, there will be a loss in time and efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a rod mill drum for laboratory use, which can adjust the grinding space according to the grinding amount to ensure the grinding effect, and can also grind two materials at the same time to ensure the same experimental control conditions and improve the grinding efficiency.

[0005] The utility model is realized by the following technical scheme: a rod mill drum for laboratory use, comprising an inner cylinder, a middle cylinder, and an outer cylinder fixedly connected in sequence from the inside to the outside, the height of the middle cylinder being greater than the height of the inner cylinder and less than the height of the outer cylinder, an inner end cover covering the inner cylinder is arranged in the middle cylinder, a middle end cover covering the middle cylinder is arranged in the outer cylinder, a fixing pipe connecting the inner end cover and the middle end cover is also arranged between the inner end cover and the middle end cover, and the top surface of the fixing pipe is flush with the top surface of the middle cylinder. A fixing structure for fixing the middle end cover / inner end cover is also arranged on the outer cylinder.

[0006] When the utility model is in use, when there is more material, the middle end cover is used, and when there is less material, the inner end cover is used. When two materials need to be ground in the same drum at the same time, a part of the material is placed in the inner drum, and a grinding rod of a suitable length is placed, and then the inner end cover is placed, and then the fixed tube is placed on the inner end cover, and then the material is placed in the fixed tube, and then the grinding rod of a suitable length is placed, and finally the middle end cover is placed on the middle drum and the fixed tube, and finally the middle end cover and the inner end cover are fixed by a fixing device, so as to perform grinding, so that the grinding space can be adjusted according to the amount of grinding, so as to ensure the grinding effect, and at the same time, the two materials can be ground at the same time, so as to ensure the same experimental control conditions, and also can improve the grinding efficiency.

[0007] Preferably, the outer diameter of the fixed tube matches the inner diameter of the middle tube, and the inner diameter of the fixed tube matches the inner diameter of the inner tube.

[0008] This preferred solution sets the inner and outer diameters of the fixed tube. When there is a lot of material, a middle end cover and a longer grinding rod are used. The fixed tube can fill the annular space of the middle tube and the excess inner tube, thereby ensuring the grinding effect.

[0009] Preferably, two fixed tubes are provided, the distance between the middle end cover and the inner end cover is adapted to the length of one fixed tube, and the distance between the top surface of the inner tube and the middle end cover is adapted to the length of the other fixed tube.

[0010] When this preferred solution is in use, when there is a lot of material and the inner end cover is not used, another inner end cover is used to fill the annular space of the middle cylinder that is redundant with the inner cylinder. When two materials need to be ground after being separated, a fixed tube can be used between the inner end cover and the middle end cover to ensure the grinding effect.

[0011] Preferably, the fixing structure includes an arched fixing plate, and a screw threadedly connected to the fixing plate and passing through the fixing plate, the screw is pushed onto the middle end cover / inner end cover, and the outer cylinder is also provided with through holes for the two ends of the fixing plate to pass through.

[0012] When the preferred solution is used, the two ends of the fixing plate are respectively passed through the two through holes, and then the screw is rotated to make the screw push onto the middle end cover / inner end cover, thereby fixing the middle end cover / inner end cover.

[0013] Preferably, a handle is fixedly connected to the top surface of the screw rod, and a nut is threadedly connected to the screw rod and pushed to the top surface of the fixing plate.

[0014] In this preferred solution, by setting the nut, after the screw rod reaches the middle end cover / inner end cover, the nut is rotated to push it onto the fixing plate, thereby pre-tightening the fixing plate.

[0015] Preferably, a groove for inserting a screw is provided on the middle end cover, and a reinforcing plate is provided at the bottom of the groove.

[0016] This preferred solution improves the strength of the support screw by setting the reinforcing plate, thereby playing a role in protecting the middle end cover.

[0017] The beneficial effects of the utility model are as follows: when there is more material, the middle end cover is used, and when there is less material, the inner end cover is used. When two materials need to be ground in the same drum at the same time, a part of the material is placed in the inner drum, and a grinding rod of appropriate length is placed, and then the inner end cover is placed, and then the fixed tube is placed on the inner end cover, and then the material is placed in the fixed tube, and then a grinding rod of appropriate length is placed, and finally the middle end cover is placed in the middle drum and the fixed tube, and finally the middle end cover and the inner end cover are fixed with a fixing device for grinding, so that the grinding space can be adjusted according to the amount of grinding, so as to ensure the grinding effect, and at the same time, the two materials can be ground at the same time, so as to ensure the same experimental control conditions, and also to improve the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the utility model for simultaneously grinding two materials;

[0019] Figure 2 This is a schematic diagram of grinding when there is a lot of material in the utility model;

[0020] Figure 3 is a schematic diagram of a fixed plate;

[0021] As shown in the figure:

[0022] 1. Inner tube, 2. Middle tube, 3. Outer tube, 4. Inner end cover, 5. Middle end cover, 6. A fixed tube, 7. Fixed plate, 8. Nut, 9. Screw, 10. Handle, 11. Reinforcement plate, 12. Another fixed tube. DETAILED DESCRIPTION

[0023] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0024] See attached Figure 1-3 The utility model is a rod mill drum for laboratory use, comprising an inner cylinder 1, a middle cylinder 2, and an outer cylinder 3 which are fixedly connected in sequence from the inside to the outside. The height of the middle cylinder 2 is greater than the height of the inner cylinder 1 and less than the height of the outer cylinder 3. An inner end cover 4 covering the inner cylinder 1 is arranged in the middle cylinder 2, and a middle end cover 5 covering the middle cylinder 2 is arranged in the outer cylinder 3. A fixing pipe connecting the inner end cover 4 and the middle end cover 5 is also arranged between the inner end cover 4 and the middle end cover 5, and the top surface of the fixing pipe is flush with the top surface of the middle cylinder 2. A fixing structure for fixing the middle end cover 5 / the inner end cover 4 is also arranged on the outer cylinder 3.

[0025] There are two fixed tubes, the distance between the middle end cover 5 and the inner end cover 4 is adapted to the length of one fixed tube 6, the distance between the top surface of the inner tube 1 and the middle end cover 5 is adapted to the length of another fixed tube 12, the outer diameter of the fixed tube is adapted to the inner diameter of the middle tube 2, and the inner diameter of the fixed tube is adapted to the inner diameter of the inner tube 1.

[0026] The fixing structure includes an arched fixing plate 7 and a screw 9 threadedly connected to the fixing plate 7 and penetrating the fixing plate 7. The screw 9 is pushed onto the middle end cover 5 / inner end cover 4. The outer cylinder 3 is also provided with through holes for the two ends of the fixing plate 7 to penetrate.

[0027] A handle 10 is fixedly connected to the top surface of the screw rod 9 , and a nut 8 is also threadedly connected to the screw rod 9 and pushed to the top surface of the fixing plate 7 .

[0028] The middle end cover 5 is provided with a groove for inserting the screw rod 9 , and a reinforcing plate 11 is provided at the bottom of the groove.

[0029] The inner cylinder 1, the outer cylinder 3 and the middle cylinder 2 are all made of 304 stainless steel, thereby avoiding the formation of rust, reducing the regular cleaning of the rod mill drum, reducing the addition of impurities in the ore sample during the grinding process and the pollution of iron elements, and the inner cylinder 1, the outer cylinder 3 and the middle cylinder 2 are integrally formed.

[0030] When the utility model is in use, when the material to be ground is small, the material and the grinding rod are placed in the inner cylinder 1, and then the inner end cover 4 is placed on the top surface of the inner cylinder 1, and the inner end cover 4 is fixed by a fixing structure, and then placed on the rod mill for rolling grinding;

[0031] When there is a lot of material, use the middle cylinder 2 for grinding, place another fixed tube 12 in the middle cylinder 2, make the other fixed tube 12 push against the top surface of the inner cylinder 1, then place the material and the grinding rod in the inner cylinder 1 and the middle cylinder 2, then use the middle end cover 5 to place it on the top surface of the middle cylinder 2, and use the fixing structure to fix the inner end cover 4, and then place it on the rod mill for rolling grinding;

[0032] When two materials need to be ground at the same time, one material and the grinding rod are placed in the inner cylinder 1, and then placed on the top surface of the inner cylinder 1 using the inner end cover 4, and then a fixed tube 6 is placed in the middle cylinder 2, so that the fixed tube 6 is pushed to the top surface of the inner end cover 4, and then the other material and the grinding rod are placed in the middle cylinder 2, and then placed on the top surface of the middle cylinder 2 using the middle end cover 5, and the inner end cover 4 is fixed using a fixing structure, and then placed on the rod mill for rolling grinding.

[0033] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A rod mill drum for laboratory use, characterized in that: The invention comprises an inner cylinder (1), a middle cylinder (2), and an outer cylinder (3) which are fixedly connected in sequence from the inside to the outside, wherein the height of the middle cylinder (2) is greater than the height of the inner cylinder (1) and less than the height of the outer cylinder (3), an inner end cover (4) covering the inner cylinder (1) is arranged in the middle cylinder (2), a middle end cover (5) covering the middle cylinder (2) is arranged in the outer cylinder (3), a fixing tube connecting the inner end cover (4) and the middle end cover (5) is also arranged between the inner end cover (4) and the middle end cover (5), the top surface of the fixing tube is flush with the top surface of the middle cylinder (2), and a fixing structure for fixing the middle end cover (5) / the inner end cover (4) is also arranged on the outer cylinder (3).

2. The laboratory rod mill drum according to claim 1, characterized in that: The outer diameter of the fixed tube matches the inner diameter of the middle tube (2), and the inner diameter of the fixed tube matches the inner diameter of the inner tube (1).

3. The laboratory rod mill drum according to claim 1, characterized in that: Two fixed tubes are provided, the distance between the middle end cover (5) and the inner end cover (4) is adapted to the length of one fixed tube (6), and the distance between the top surface of the inner tube (1) and the middle end cover (5) is adapted to the length of the other fixed tube (12).

4. The laboratory rod mill drum according to claim 1, characterized in that: The fixing structure comprises an arched fixing plate (7), and a screw rod (9) threadedly connected to the fixing plate (7) and penetrating the fixing plate (7), the screw rod (9) being pushed onto the middle end cover (5) / inner end cover (4), and the outer cylinder (3) is also provided with through holes for the two ends of the fixing plate (7) to penetrate.

5. The laboratory rod mill drum according to claim 4, characterized in that: A handle (10) is fixedly connected to the top surface of the screw rod (9), and a nut (8) is also threadedly connected to the screw rod (9) and pressed against the top surface of the fixing plate (7).

6. The laboratory rod mill drum according to claim 1, characterized in that: The middle end cover (5) is provided with a groove for inserting the screw rod (9), and a reinforcing plate (11) is provided at the bottom of the groove.

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