A ball mill sealing device

Abstract

The utility model provides a kind of ball mill sealing device, belong to ball mill technical field. Including elbow pipe and machine jar, the side of machine jar is equipped with feed inlet, the elbow pipe is installed with feed inlet intercommunication, seal dismounting component, the seal dismounting component is arranged between elbow pipe and machine jar, the seal dismounting component includes first annular frame, the first annular frame is fixedly connected with the side of machine jar, the side of elbow pipe is fixedly connected with connecting ring plate. By setting seal dismounting component, the connecting process of elbow pipe and jar body can be fixed and sealed, and the sealing adopts inner and outer double-layer sealing structure, so that the overall sealing performance is improved, and the connection mode adopts the fixing mode of threaded rod and nut, so that each component can be rigidly connected, the overall connection is stable, and the problem of easy leakage at the connection caused by single-layer rubber sealing and flange fixing is avoided.

Description

Technical Field

[0001] This utility model relates to the field of ball mill technology, and in particular to a sealing device for a ball mill. Background Technology

[0002] As the core equipment for material grinding, the ball mill's grinding chamber needs to be connected to the upstream feeding device via a bend in the pipe to form a material conveying channel. To prevent the grinding material (mostly powder or granules, some containing corrosive components) from leaking through the connection gap between the bend and the grinding chamber during the conveying process, and to prevent impurities such as outside air, dust, and moisture from entering the grinding chamber and affecting the grinding purity, a sealing structure needs to be installed at this connection point.

[0003] In practical use, flange connections are usually used. The sealing performance of the flange mainly relies on the rubber ring installed on the flange. Once the rubber ring ages and breaks, the overall sealing performance will be reduced, making it easy for external air to enter the interior, affecting the grinding purity of the internal materials. At the same time, the internal grinding powder is easy to leak from the gaps, causing environmental pollution, which is very inconvenient. Therefore, this application provides a ball mill sealing device to meet the requirements. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a ball mill sealing device that can improve the sealing performance at the connection between the bend and the mill tank.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A ball mill sealing device includes a bent pipe and a mill tank, wherein a feed inlet is provided on one side of the mill tank, and the bent pipe is connected to the feed inlet during installation; A sealing assembly is provided between a bend and a tank. The sealing assembly includes a first annular retaining frame, which is fixedly connected to one side of the tank. A connecting ring plate is fixedly connected to one side of the bend, and a first annular retaining block is fixedly connected to one side of the connecting ring plate. The first annular retaining block engages with the first annular retaining frame. A protective component is disposed on one side of the tank to provide protection for the sealed area.

[0006] The detachable snap-fit ​​structure of the sealing assembly solves the problem of easy leakage caused by simple snap-fit ​​structures that rely solely on a single snap-fit ​​by using a snap-fit ​​and sealing fit. It forms a preliminary sealing fit between the bend and the tank, blocking the basic channel for material leakage from the connection gap.

[0007] Optionally, a second annular locking block is fixedly connected to one side of the machine tank, and a second annular locking frame is provided on one side of the connecting ring plate, wherein the second annular locking frame is nested and locked with the inner wall of the second annular locking block.

[0008] The double nesting of the first and second ring snap-fits creates a "double-layer positioning" between the bend and the tank, preventing the sealing strip from breaking or falling off due to excessively large or small gaps in a single snap-fit.

[0009] Optionally, a first threaded rod is fixedly connected to one side of the second annular block, and a circular insertion hole is opened on one side of the second annular frame. The first threaded rod is inserted into the inner wall of the circular insertion hole, and a first fixing nut is threaded to one end of the first threaded rod.

[0010] After the first threaded insert passes through the circular insertion hole, it is locked with the first fixing nut. This can apply a continuous pre-tightening force to the nested engagement of the second annular locking block and the second annular locking frame, preventing the engagement from loosening due to ball mill vibration, ensuring that the sealing structure maintains a stable fit for a long time, and extending the sealing failure cycle.

[0011] Optionally, an annular sleeve is fitted on one side of the connecting ring plate. The annular sleeve is formed by an L-shaped cross section consisting of a transverse ring plate and a vertical ring plate, and the annular sleeve is made of rubber.

[0012] The ring sleeve is made of elastic rubber, and the L-shaped cross-section of the horizontal and vertical ring plates can simultaneously fit the end face and side face of the connecting ring plate. Compared with the traditional single rectangular sealing strip, it can compensate for the small gap changes caused by vibration through its own elasticity, and block the leakage of materials from the end face and side face through a dual path.

[0013] Optionally, the protective component includes a third annular retaining frame, one side of which is fixedly connected to one side of the tank, a third annular retaining block is engaged with the inner wall of the third annular retaining frame, an auxiliary ring plate is fixedly connected to one side of the third annular retaining block, and an annular guard plate is fixedly connected to one side of the auxiliary ring plate.

[0014] The annular guard plate extends outward and covers the entire sealing area, which can directly block the splashing impact of materials during the grinding process (material rebound near the feed inlet of the machine tank), and prevent hard particles from directly impacting the seal; at the same time, it can prevent external dust and moisture from entering the sealing gap.

[0015] Optionally, a first rectangular block is fixedly connected to one side of the machine tank, and a second rectangular block is fixedly connected to one side of the auxiliary ring plate. A first insertion hole is provided on one side of the first rectangular block, and a second insertion hole is provided on one side of the second rectangular block.

[0016] The corresponding arrangement of the first and second rectangular blocks, along with the first and second insertion holes whose centerlines coincide, provides a clear positioning reference during the installation of the protective components, preventing the protective components from shifting due to the complex structure of the ball mill housing (the annular guard plate not being aligned with the sealing part).

[0017] Optionally, a second threaded rod is inserted into the inner wall of the first and second insertion holes, and a second fixing nut is threaded to one end of the second threaded rod.

[0018] After the second threaded rod passes through the first and second insertion holes on the coaxial shaft, it is locked with the second fixing nut. This can firmly fix the protective component to the side of the machine tank, preventing the protective component from shifting or falling off due to the high-frequency vibration of the ball mill, and ensuring that the annular guard plate accurately covers the sealing part for a long time.

[0019] Compared with the prior art, this utility model has at least the following beneficial effects: By setting up a sealing and disassembly assembly, the connection between the bend and the tank can be fixed and sealed during the connection process. The seal adopts an inner and outer double-layer sealing structure, which improves the overall sealing performance. The connection method adopts a threaded rod and nut fixing method, which allows the components to be rigidly connected and the overall connection to be stable, avoiding the problem of easy leakage at the connection caused by single-layer rubber seals and flange fixing.

[0020] By incorporating a protective structure, the sealing and disassembly assembly can be impact-resistant, preventing direct impact from external hard objects or high-speed rotating particles, which could accelerate wear and tear on the internal structure of the sealing and disassembly assembly. Attached Figure Description The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0021] Figure 1 This is a schematic diagram of the sealing device for a ball mill. Figure 2 A schematic diagram of the connecting ring plate structure of the ball mill sealing device; Figure 3 A schematic diagram of the side structure of the connecting ring plate of the ball mill sealing device; Figure 4 A schematic diagram of the annular sleeve structure of the ball mill sealing device; Figure 5 A schematic diagram of the tank structure of the ball mill sealing device; Figure 6 This is a schematic diagram of the annular protective plate structure of the ball mill sealing device.

[0022] [Figure Labels] 1. Pipe bending; 2. Tank; 21. Feed inlet; 3. Sealing and disassembly assembly; 31. First annular retaining frame; 32. Second annular retaining block; 33. Connecting ring plate; 34. First annular retaining block; 35. Second annular retaining frame; 36. Circular insertion hole; 37. First threaded insertion rod; 38. First fixing nut; 39. Annular sleeve; 4. Protective components; 41. Third annular frame; 42. Third annular block; 43. Auxiliary ring plate; 44. Annular guard plate; 45. First rectangular block; 46. First insertion hole; 47. Second rectangular block; 48. Second insertion hole; 49. Second threaded rod; 410. Second fixing nut.

[0023] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0027] In the description of this application, spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., are used herein to describe the relationship between one element or feature shown in the figures and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as "below" or "under" or "below" of other elements or features will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein are interpreted accordingly.

[0028] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0029] The ball mill sealing device provided in this embodiment aims to solve the problem of poor sealing at the connection between the bend 1 and the mill tank 2. It addresses the issues of inadequate sealing performance of a single sealing structure and accelerated wear caused by direct impact of high-speed rotating particles from the outside. The device comprises a bend 1, a mill tank 2, a sealing assembly / disassembly component 3, and a protective component 4. These components work together to provide a double-layer seal at the connection between the bend 1 and the mill tank 2, thereby improving the sealing performance.

[0030] like Figures 1-6 As shown, an embodiment of this utility model provides a ball mill sealing device, such as... Figure 1 and Figure 5 As shown, the device includes a bent pipe 1 and a tank 2. A feed inlet 21 is provided on one side of the tank 2, and the bent pipe 1 is connected to the feed inlet 21 during installation. A discharge outlet corresponding to the feed inlet 21 is provided on the other side of the tank 2. Figure 1 , Figure 2 and Figure 5As shown, a sealing assembly 3 is provided between the bend 1 and the tank 2. The sealing assembly 3 includes a first annular frame 31, which is fixed to the outer end face of the feed inlet 21 of the tank 2 by submerged arc welding. A connecting ring plate 33 is fixedly connected to one side of the bend 1 by argon arc welding. A first annular block 34 is fixedly connected to one side of the connecting ring plate 33. The first annular block 34 is integrally formed on the side of the connecting ring plate 33 facing the tank 2 and is made of the same material as the connecting ring plate 33. The first annular block 34 is engaged with the first annular frame 31. A protective assembly 4 is provided on one side of the tank 2 to protect the sealing part.

[0031] Under the action of the sealing and disassembly assembly 3, a double-layer sealing structure can be formed when the bend pipe 1 is connected to the tank 2, thereby effectively preventing external air from entering the interior of the tank 2 and affecting its use. At the same time, the sealing and disassembly assembly 3 only requires conventional operation and conventional tools in terms of structure and installation steps, thereby improving the overall disassembly and assembly efficiency.

[0032] like Figure 1 , Figure 3 and Figure 5 As shown, a second annular locking block 32 is fixedly connected to one side of the tank 2 by welding, and a second annular locking frame 35 is fixed to one side of the connecting ring plate 33 by welding. The connecting ring plate 33 has an annular groove that communicates with the second annular locking frame 35. The second annular locking frame 35 is nested and locked with the inner wall of the second annular locking block 32 in conjunction with the annular groove on the connecting ring plate 33.

[0033] like Figure 2 , Figure 3 and Figure 5 As shown, a first threaded rod 37 is fixedly connected to one side of the second annular block 32 by welding. A circular insertion hole 36 corresponding to the position of the first threaded rod 37 is opened on one side of the second annular frame 35 to facilitate the smooth insertion of the first threaded rod 37. The first threaded rod 37 is inserted into the inner wall of the circular insertion hole 36. A first fixing nut 38 is threaded to one end of the first threaded rod 37. The first fixing nut 38, together with the spring washer, is tightened and pre-tightened with the first threaded rod 37.

[0034] like Figure 2 , Figure 4 and Figure 5 As shown, an annular sleeve 39 is fitted on one side of the connecting ring plate 33. The annular sleeve 39 is formed by an L-shaped cross section consisting of a transverse ring plate and a vertical ring plate. It is fitted onto the outside of the connecting ring plate 33 by interference fit. After fitting, the transverse ring plate fits against the outside of the connecting ring plate 33 and the bend 1, and the vertical ring plate fits against the outer wall of the second annular frame 35, achieving double sealing of the end face and side, thereby protecting the first threaded rod 37 and the first fixing nut 38. The annular sleeve 39 is made of rubber.

[0035] like Figure 1 , Figure 5 and Figure 6 As shown, the protective component 4 includes a third annular frame 41, which is welded to the outside of the feed inlet 21 of the tank 2 and located outside the second annular block 32. The third annular block 42 is snapped onto the inner wall of the third annular frame 41 and integrally formed on the inner side of the auxiliary ring plate 43. The auxiliary ring plate 43 is fixedly connected to one side of the third annular block 42 by welding, and the annular guard plate 44 is fixedly connected to one side of the auxiliary ring plate 43 by welding.

[0036] like Figure 5 and Figure 6 As shown, a first rectangular block 45 is fixedly connected to one side of the machine tank 2. After welding, it fits tightly to the outer wall of the machine tank 2. A second rectangular block 47 is fixedly connected to one side of the auxiliary ring plate 43. The size is the same as that of the first rectangular block 45. A first insertion hole 46 is opened on one side of the first rectangular block 45, and a second insertion hole 48 is opened on one side of the second rectangular block 47. The first insertion hole 46 and the second insertion hole 48 are respectively located at the center of the first rectangular block 45 and the second rectangular block 47.

[0037] like Figure 5 and Figure 6 As shown, a second threaded rod 49 is inserted into the inner wall of the first insertion hole 46 and the second insertion hole 48. A positioning step is machined in the middle of the rod. One end of the second threaded rod 49 is threadedly connected to a second fixing nut 410, which is used in conjunction with a flat washer to achieve a firm fixation of the protective component 4.

[0038] Working principle like Figures 1-6 As shown, firstly, the first annular locking block 34 on the bend 1 is engaged with the first annular locking frame 31 on the tank 2. At this time, the second annular locking block 32 and the second annular locking frame 35 can be engaged. At the same time, the position is adjusted before installation so that the first threaded rod 37 is aligned with the round insertion hole 36. Then, the first fixing nut 38 is fixed to the first threaded rod 37. The annular sleeve 39 is placed on the outside of the connecting ring plate 33, so that the first threaded rod 37 and the first fixing nut 38 and other components can be sealed and protected. At this time, the third annular locking block 42 is engaged with the third annular locking frame 41. Previously, the first insertion hole 46 and the second insertion hole 48 were aligned. The second threaded insertion rod 49 was inserted into the first insertion hole 46 and the second insertion hole 48. The second fixing nut 410 was then fixed to the second threaded insertion rod 49.

[0039] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the above embodiments are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. A ball mill sealing device, characterized in that, include: The bent pipe (1) and the machine tank (2) are provided with a feed inlet (21) on one side of the machine tank (2), and the bent pipe (1) is connected to the feed inlet (21) during installation; A sealing assembly (3) is provided between the bend (1) and the tank (2). The sealing assembly (3) includes a first annular frame (31), which is fixedly connected to one side of the tank (2). A connecting ring plate (33) is fixedly connected to one side of the bend (1), and a first annular block (34) is fixedly connected to one side of the connecting ring plate (33). The first annular block (34) engages with the first annular frame (31). The protective component (4) is disposed on one side of the tank (2) and is used to protect the sealed parts.

2. The ball mill sealing device according to claim 1, characterized in that, A second annular locking block (32) is fixedly connected to one side of the machine tank (2), and a second annular locking frame (35) is provided on one side of the connecting ring plate (33). The second annular locking frame (35) is nested and locked to the inner wall of the second annular locking block (32).

3. The ball mill sealing device according to claim 2, characterized in that, The second annular block (32) is fixedly connected to one side of a first threaded rod (37), and the second annular frame (35) is provided with a round insertion hole (36) on one side. The first threaded rod (37) is inserted into the inner wall of the round insertion hole (36), and one end of the first threaded rod (37) is threadedly connected to a first fixing nut (38).

4. The ball mill sealing device according to claim 1, characterized in that, A ring sleeve (39) is fitted on one side of the connecting ring plate (33). The ring sleeve (39) is composed of a horizontal ring plate and a vertical ring plate forming an L-shaped cross section. The ring sleeve (39) is made of rubber.

5. The ball mill sealing device according to claim 1, characterized in that, The protective component (4) includes a third annular frame (41), one side of which is fixedly connected to one side of the tank (2), and a third annular block (42) is snapped into the inner wall of the third annular frame (41). An auxiliary ring plate (43) is fixedly connected to one side of the third annular block (42), and an annular guard plate (44) is fixedly connected to one side of the auxiliary ring plate (43).

6. The ball mill sealing device according to claim 5, characterized in that, A first rectangular block (45) is fixedly connected to one side of the machine tank (2), and a second rectangular block (47) is fixedly connected to one side of the auxiliary ring plate (43). A first insertion hole (46) is opened on one side of the first rectangular block (45), and a second insertion hole (48) is opened on one side of the second rectangular block (47).

7. The ball mill sealing device according to claim 6, characterized in that, The inner walls of the first insertion hole (46) and the second insertion hole (48) are provided with a second threaded rod (49), and one end of the second threaded rod (49) is threadedly connected to a second fixing nut (410).

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