Wear-resistant ceramic lining vacuum ball milling device

Abstract

The utility model relates to the technical field of experimental and industrial ball milling, in particular to a wear-resistant ceramic lining vacuum ball milling device. The wear-resistant ceramic lining vacuum ball milling device comprises a ball milling tank main body, a wear-resistant ceramic lining and a wear-resistant ceramic milling ball, the ball milling tank main body comprises a tank body, a tank cover and a plurality of fasteners, the tank cover is provided with an extraction valve, and the wear-resistant ceramic lining comprises a plurality of arc lining plates and a circular flat plate. The wear-resistant ceramic lining tightly attached to the inner wall of the tank body is matched with the wear-resistant ceramic grinding balls for use, so that direct contact between the grinding balls and the tank body is avoided, abrasion of the tank body is reduced, introduction of metal impurities is reduced, introduction of gas impurities is reduced in cooperation with the design of vacuum conditions of the tank body, and the service life of the tank body is prolonged. Therefore, the influence of metal and gas impurities in the powder mixing and crushing process of tungsten, molybdenum and alloy powder of the tungsten, the molybdenum and the alloy powder of the tungsten, the molybdenum and the alloy of the tungsten, the molybdenum and the alloy of the tungsten are reduced, and the powder purity is guaranteed and the performance of the tungsten, the molybdenum and the alloy is improved while the powder uniformity is improved and the powder granularity is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to experimental and industrial ball milling technical field, especially a kind of wear-resistant ceramic lining vacuum ball mill device. BACKGROUND

[0002] Among the production of tungsten, molybdenum and its alloy, mixing powder is one of the indispensable processes, and in the prior art, ball milling process is usually used to mix various powders, and the high-energy input characteristics are used to make tungsten, molybdenum and its alloy powder repeatedly deform, break and cold weld, so as to achieve the purpose of dispersion and crushing, with the characteristics of short preparation period and simple process. At present, the material of conventional ball mill tank is mainly stainless steel, polytetrafluoroethylene and nylon, etc. However, under the action of grinding balls in the ball milling process, the wear of the tank body is aggravated, and under the condition of high-energy input of the grinding balls, the powder problem is also sharply increased, the content of metal impurities such as Fe and Ni in the powder and the content of gas impurities such as C, O and S are greatly increased, thereby seriously affecting the purity of tungsten, molybdenum and its alloy powder, and further seriously affecting the performance of tungsten, molybdenum and its alloy.

[0003] Therefore, how to reduce the influence of metal and gas impurities on tungsten, molybdenum and its alloy powder in the mixing and crushing process is still a problem to be solved by those skilled in the art. CONTENT OF THE UTILITY MODEL

[0004] To solve the technical problem of how to reduce the influence of metal and gas impurities on tungsten, molybdenum and its alloy powder in the mixing and crushing process, the utility model provides a wear-resistant ceramic lining vacuum ball mill device, which comprises a ball mill tank body, a wear-resistant ceramic lining and wear-resistant ceramic grinding balls.

[0005] The wear-resistant ceramic lining and the wear-resistant ceramic grinding balls are arranged inside the ball mill tank body, and the wear-resistant ceramic lining is tightly attached to the inner wall of the ball mill tank body.

[0006] The ball mill tank body comprises a tank body, a tank cover and a plurality of fasteners, and the tank cover is provided with an air extraction valve.

[0007] The wear-resistant ceramic lining comprises a plurality of circular arc lining plates and a circular flat plate.

[0008] In an embodiment, the plurality of fasteners are 2-10 regularly arranged sealing buckles.

[0009] In an embodiment, the number of the plurality of circular arc lining plates is 2-10.

[0010] In an embodiment, the number of the circular flat plate is 1 or 2.

[0011] In an embodiment, the material of the wear-resistant ceramic lining and the wear-resistant ceramic grinding balls is 99 alumina or zirconia.

[0012] In an embodiment, the wear-resistant ceramic inner lining has a thickness of 3-5 mm.

[0013] In an embodiment, the radius of curvature of the circular-arc lining plate is the difference between the radius of the tank body and the thickness of the wear-resistant ceramic inner lining; the height of the circular-arc lining plate is the difference between the inner depth of the tank body and the thickness of the wear-resistant ceramic inner lining; or the difference between the inner depth of the tank body and twice the thickness of the wear-resistant ceramic inner lining.

[0014] In an embodiment, the radius of the circular flat plate is consistent with the radius of the tank body.

[0015] In an embodiment, the axial side of the circular-arc lining plate is a stepped structure, and adjacent two circular-arc lining plates can be spliced with each other and closely fitted.

[0016] In an embodiment, the tank bottom and the tank wall of the tank body form a right angle structure.

[0017] Compared with the prior art, the wear-resistant ceramic inner lining vacuum ball milling device provided by the present application avoids the direct contact between the grinding ball and the tank body by lining a layer of wear-resistant ceramic inner lining plate with a thickness of 3-5 mm on the inner wall of the tank body of the ball milling tank, reduces the wear of the tank body, and further reduces the introduction of metal impurities in combination with the use of wear-resistant ceramic grinding balls. In addition, the tank is vacuumized through the design of the air extraction valve, so that the ball milling and powder mixing process is carried out under vacuum conditions, the introduction of gas impurities such as C, O and S is reduced, the metal and gas impurity effects of tungsten, molybdenum and their alloy powders in the powder mixing and crushing processes are comprehensively reduced, the powder uniformity and the powder particle size are improved, the purity of the powder is ensured, and the performance of tungsten, molybdenum and their alloys is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0019] Figure 1 The overall structure perspective view of the wear-resistant ceramic inner lining vacuum ball milling device provided by the present application embodiment 1 is shown in the figure.

[0020] Figure 2 The front view of the wear-resistant ceramic grinding ball provided by the present application embodiment 1 is shown in the figure.

[0021] Figure 3 The top view of the cylindrical structure composed of the circular-arc lining plate provided by the present application embodiment 1 is shown in the figure.

[0022] REFERENCE NUMERALS:

[0023] DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments but not all embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0025] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms "upper", "lower", "inner", "outer", "axial", "circumferential" and the like are the positions or location relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] Embodiment 1

[0027] The present embodiment provides a wear-resistant ceramic-lined vacuum ball milling device, as shown in Figure 1 and Figure 2 , comprising a ball milling tank body 100, a wear-resistant ceramic lining 200 and wear-resistant ceramic milling balls 300.

[0028] The wear-resistant ceramic lining 200 and the wear-resistant ceramic milling balls 300 are both arranged inside the ball milling tank body 100, and the wear-resistant ceramic lining 200 is tightly attached to the inner wall of the ball milling tank body 100.

[0029] The ball milling tank body 100 comprises a tank body 110, a tank cover 120 and a plurality of fasteners 130, and the tank cover 120 is provided with an air extraction valve 121.

[0030] The wear-resistant ceramic lining 200 comprises a plurality of circular-arc lining plates 210 and a circular flat plate 220.

[0031] In the present embodiment, during assembly, the plurality of fasteners 130 are 2-10 regularly arranged sealing buckles.

[0032] Preferably, the plurality of fasteners 130 are 4 sealing buckles evenly distributed on the circumference of the tank cover 120.

[0033] In the present embodiment, during assembly, the number of the plurality of circular-arc lining plates 210 is 2-10.

[0034] Preferably, the number of the circular arc lining plates 210 is 6.

[0035] In this embodiment, the number of the circular flat plates 220 is 1 or 2 when assembled.

[0036] Preferably, the number of the circular flat plates 220 is 2.

[0037] In this embodiment, the material of the wear-resistant ceramic lining 200 and the wear-resistant ceramic grinding ball 300 is 99 alumina or zirconia when assembled.

[0038] When used, the wear-resistant ceramic lining 200 can avoid direct contact between the wear-resistant ceramic grinding ball 300 and the tank body 110, thereby reducing the wear of the tank body 110. The use of the wear-resistant ceramic grinding ball 300 also avoids the introduction of metal impurities caused by grinding ball wear, further reducing the introduction of metal impurities.

[0039] In this embodiment, the thickness of the wear-resistant ceramic lining 200 is 3-5 mm when assembled.

[0040] Preferably, the thickness of the wear-resistant ceramic lining 200 is 3 mm.

[0041] In this embodiment, the radius of curvature of the circular arc lining plate 210 is the difference between the radius of the tank body 110 and the thickness of the wear-resistant ceramic lining 200 when assembled. The height of the circular arc lining plate 210 is the difference between the inner depth of the tank body 110 and the thickness of the wear-resistant ceramic lining 200, or the difference between the inner depth of the tank body 110 and twice the thickness of the wear-resistant ceramic lining 200.

[0042] Preferably, the height of the circular arc lining plate 210 is the difference between the inner depth of the tank body 110 and twice the thickness of the wear-resistant ceramic lining 200.

[0043] In this embodiment, the radius of the circular flat plate 220 is consistent with the radius of the tank body 110 when assembled.

[0044] In this embodiment, the axial side of the circular arc lining plate 210 is a stepped structure, and adjacent two circular arc lining plates 210 can be spliced and tightly fitted with each other.

[0045] When operated, first place one of the circular flat plates 220 at the bottom of the tank body 110, then insert and tightly fit and splice the circular arc lining plates 210 in sequence, as shown in the drawing, to assemble a cylindrical structure, and finally cover the other circular flat plate 220 on the upper part of the cylindrical lining plate, thereby completing the assembly of the wear-resistant ceramic lining 200. Figure 3

[0046] ​In the embodiment, the tank bottom and the tank wall of the tank body 110 form a right angle structure when assembled;

[0047] In use, the right angle structure can ensure that the circular flat plate 220 and the circular arc lining plate 210 are tightly attached to the inner wall of the tank body 110.

[0048] Embodiment 2

[0049] The embodiment provides a tungsten, molybdenum and alloy powder mixing and crushing process using the wear-resistant ceramic lining vacuum ball mill device of embodiment 1, including the following steps:

[0050] One circular flat plate is laid on the bottom of the ball mill tank body, and six circular arc lining plates are inserted in sequence and tightly embedded and spliced one by one to form a cylindrical structure.

[0051] The wear-resistant ceramic grinding ball is put into the cylindrical structure, and the tungsten, molybdenum and alloy powder is put into the cylindrical structure.

[0052] Another circular flat plate is placed on the upper part of the cylindrical lining plate, the tank cover is covered, and the sealing buckle is sealed.

[0053] After vacuumizing by the air extraction valve, the ball milling operation can be performed.

[0054] Although the terms such as wear-resistant ceramic, ball milling, air extraction valve, lining, lining plate, grinding ball, step structure, right angle structure, cylindrical structure, powder mixing, crushing, impurities, etc. are used more in this paper, but the possibility of using other terms is not excluded. The use of these terms is only to facilitate the description and explanation of the essence of the utility model; any additional limitation is contrary to the spirit of the utility model.

[0055] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A vacuum ball mill device with a wear-resistant ceramic lining, characterized in that, The application relates to a wear-resistant ceramic lining vacuum ball milling device. The wear-resistant ceramic lining (200) and the wear-resistant ceramic grinding ball (300) are arranged in the ball milling tank body (100), and the wear-resistant ceramic lining (200) is tightly attached to the inner wall of the ball milling tank body (100). The ball milling tank body (100) comprises a tank body (110), a tank cover (120) and a plurality of fasteners (130), and the tank cover (120) is provided with an air extraction valve (121). The wear-resistant ceramic lining (200) comprises a plurality of circular arc lining plates (210) and circular flat plates (220). The plurality of fasteners (130) are regularly arranged 2-10 sealing buckles.

2. The vacuum ball mill apparatus with a wear-resistant ceramic lining according to claim 1, characterized in that: The number of the plurality of circular arc lining plates (210) is 2-10.

3. The ceramic lined vacuum ball mill apparatus of claim 1, wherein: The number of the circular flat plates (220) is 1 or 2.

4. The ceramic lined vacuum ball mill apparatus of claim 1, wherein: The material of the wear-resistant ceramic lining (200) and the wear-resistant ceramic grinding ball (300) is 99 alumina or zirconia.

5. The ceramic lined vacuum ball mill apparatus of claim 1, wherein: The thickness of the wear-resistant ceramic lining (200) is 3-5 mm.

6. The ceramic lined vacuum ball mill apparatus of claim 1, wherein:

7. The wear-resistant ceramic lining vacuum ball milling device according to claim 1, wherein: The circular arc curvature radius of the circular arc lining plate (210) is the difference between the radius of the tank body (110) and the thickness of the wear-resistant ceramic lining (200). The height of the circular arc lining plate (210) is the difference between the inner depth of the tank body (110) and the thickness of the wear-resistant ceramic lining (200), or the difference between the inner depth of the tank body (110) and twice the thickness of the wear-resistant ceramic lining (200). The radius of the circular flat plate (220) is consistent with the radius of the tank body (110).

8. The ceramic lined vacuum ball mill apparatus of claim 1, wherein: The axial side of the circular arc lining plate (210) is a stepped structure, and adjacent two circular arc lining plates (210) can be spliced with each other and tightly attached.

9. The ceramic lined vacuum ball mill apparatus of claim 1, wherein: The tank bottom and the tank wall of the tank body (110) form a right angle structure.

10. The ceramic lined vacuum ball mill apparatus of claim 1, wherein: ​

Images