Slurry leakage prevention structure at inlet of rod mill

Abstract

The utility model provides a rod mill inlet slurry leakage prevention structure which comprises a feeding pipe inserted into a sealing sleeve fixedly connected to an end cover, a conical binding face is formed between the sealing sleeve and the feeding pipe, a sealing ring is arranged in the binding face in a clamped mode, a guide rod is fixedly connected to the end face of the sealing sleeve, a limiting plate is fixedly connected to the outer wall of the feeding pipe, the guide rod penetrates through the limiting plate, and the limiting plate is fixedly connected to the end face of the sealing sleeve. And a spring sleeved on the guide rod is compressed between the end face of the sealing sleeve and the limiting plate. The feeding pipe has the movement tendency of being far away from the sealing sleeve by utilizing the thrust generated by the spring on the limiting plate, so that the sealing ring is clamped, the sealing performance between the feeding pipe and the end cover is improved, and the slurry leakage phenomenon can be prevented.

Description

Technical Field

[0001] The present application relates to the technical field of rod mills, and in particular to a slurry leakage prevention structure at an inlet of a rod mill. Background Art

[0002] A rod mill is a mill in which the grinding body is a steel rod. The continuous rotation of the cylinder causes the steel rod to continuously rub and collide with the material, causing the originally intact material to be crushed. There is a gap between the existing feed pipe and the end cover of the rod mill, which easily causes the slurry to flow out of the end cover. For this reason, the inventor proposes a rod mill inlet leakage-proof slurry structure. Utility Model Content

[0003] The purpose of the present application is to provide a slurry leakage prevention structure at the inlet of a rod mill, which can improve the sealing between the feed pipe and the end cover and prevent slurry leakage.

[0004] The embodiment of the present application is implemented as follows:

[0005] The present application provides a rod mill inlet anti-leakage slurry structure, comprising a feed pipe plugged into a sealing sleeve fixedly connected to an end cover, a conical fitting surface being formed between the sealing sleeve and the feed pipe, a sealing ring being sandwiched in the fitting surface, a guide rod being fixedly connected to the end surface of the sealing sleeve, a limit plate being fixedly connected to the outer wall of the feed pipe, the guide rod passing through the limit plate, and a spring sleeved on the guide rod being compressed between the end surface of the sealing sleeve and the limit plate.

[0006] The present application utilizes the thrust generated by the spring on the limit plate, so that the feed pipe has a tendency to move away from the sealing sleeve, thereby clamping the sealing ring, improving the sealing between the feed pipe and the end cover, and preventing slurry leakage.

[0007] In an alternative embodiment, the outer diameter of the sealing sleeve decreases from the end cap toward the feed tube.

[0008] In an optional embodiment, the end of the feed pipe has a sealing member adapted to the outer shape of the sealing sleeve.

[0009] In an optional embodiment, the sealing ring is configured as a cone as a whole.

[0010] In an optional embodiment, the guide rod is arranged along the axis of the sealing sleeve.

[0011] In an optional embodiment, the guide rods are evenly distributed along the circumference of the sealing sleeve.

[0012] In an optional embodiment, the limiting plate is arranged along the radial direction of the feeding pipe.

[0013] In an optional embodiment, the limiting plate is configured in a ring shape coaxially arranged with the feeding pipe.

[0014] In an optional embodiment, an adjusting nut is screwed onto the guide rod.

[0015] In an optional embodiment, the spring is compressed between the limit plate and the adjusting nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The exemplary embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the embodiments described below are only used to explain the present application, rather than to limit the scope of the present application. In the accompanying drawings:

[0017] Figure 1 is a schematic diagram of a slurry leakage prevention structure for a rod mill inlet according to an embodiment of the present application;

[0018] Reference numerals:

[0019] 10. End cap;

[0020] 20. Sealing sleeve;

[0021] 30. Feeding pipe;

[0022] 40. Sealing ring;

[0023] 50. Laminating surface;

[0024] 21. Guide rod;

[0025] 22. Adjusting nut;

[0026] 23. Spring;

[0027] 31. Seals;

[0028] 32. Limit plate. DETAILED DESCRIPTION

[0029] Example 1

[0030] See also Figure 1 This embodiment provides a rod mill inlet anti-leakage slurry structure to solve the slurry leakage problem caused by poor sealing between the end cover and the feed pipe of the existing rod mill.

[0031] In this embodiment, the rod mill inlet anti-leakage slurry structure includes a feeding pipe 30 inserted into a sealing sleeve 20 fixedly connected to the end cover 10, a conical fitting surface 50 is formed between the sealing sleeve 20 and the feeding pipe 30, a sealing ring 40 is clamped in the fitting surface 50, a guide rod 21 is fixedly connected to the end surface of the sealing sleeve 20, a limiting plate 32 is fixedly connected to the outer wall of the feeding pipe 30, the guide rod 21 passes through the limiting plate 32, and the spring 23 mounted on the guide rod 21 is compressed between the end surface of the sealing sleeve 20 and the limiting plate 32.

[0032] This embodiment utilizes the thrust generated by the spring 23 on the limit plate 32, so that the feed pipe 30 has a tendency to move away from the sealing sleeve 20, thereby clamping the sealing ring 40, improving the sealing between the feed pipe 30 and the end cover 10, and preventing leakage of slurry.

[0033] It should be noted that the sealing sleeve 20 is welded or threadedly connected to the end cover 10 of the rod mill, and a sealed connection is maintained between the two. The sealing sleeve 20 and the end cover 10 are coaxially arranged, and the outer diameter of the sealing sleeve 20 decreases from the end cover 10 toward the feeding pipe 30. The guide rod 21 is welded or threadedly connected to the end face of the sealing sleeve 20, and the guide rod 21 as a whole is arranged parallel to the axis of the sealing sleeve 20. The guide rod 21 is evenly distributed along the circumference of the sealing sleeve 20. An adjusting nut 22 is also screwed on the sealing sleeve 20, and the adjusting nut 22 is arranged between the end face of the sealing sleeve 20 and the limit plate 32.

[0034] In addition, the feeding pipe 30 as a whole is coaxially arranged with the sealing sleeve 20, and a conical sealing member 31 is welded at the discharge end of the feeding pipe 30. The sealing member 31 is coaxially arranged with the sealing sleeve 20, and the two are matched in shape to form a conical fitting surface 50 therebetween. The sealing ring 40 is constructed as a whole into a cone, and the sealing ring 40 is clamped between the sealing member 31 and the sealing sleeve 20 with a matched shape.

[0035] In addition, an annular limit plate 32 is welded on the outer wall of the feeding pipe 30, and the limit plate 32 is coaxially arranged with the feeding pipe 30, the guide rod 21 passes through the limit plate 32, the spring 23 is integrally sleeved on the outside of the guide rod 21, and the spring 23 is compressed between the limit plate 32 and the adjusting nut 22. By utilizing the axial thrust generated by the spring 23 on the limit plate 32, the feeding pipe 30 as a whole can have a movement tendency away from the sealing sleeve 20, thereby making the sealing member 31 close to the sealing sleeve 20, and finally achieving the purpose of clamping the sealing ring 40 to ensure the sealing of the connection between the feeding pipe 30 and the end cover 10.

[0036] It should be understood that by screwing the adjusting nut 22 toward the limiting plate 32 , the spring 23 can be further compressed, thereby adjusting the magnitude of the extrusion force exerted by the sealing member 31 and the sealing sleeve 20 on the sealing ring 40 .

[0037] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A rod mill inlet anti-leakage structure, characterized in that: It includes a feeding pipe inserted into a sealing sleeve fixed to the end cover, a conical fitting surface is formed between the sealing sleeve and the feeding pipe, a sealing ring is clamped in the fitting surface, a guide rod is fixed to the end face of the sealing sleeve, a limiting plate is fixed to the outer wall of the feeding pipe, the guide rod passes through the limiting plate, and a spring sleeved on the guide rod is compressed between the end face of the sealing sleeve and the limiting plate.

2. The rod mill inlet anti-leakage slurry structure according to claim 1, characterized in that: The outer diameter of the sealing sleeve decreases from the end cover toward the feed pipe.

3. The rod mill inlet anti-leakage slurry structure according to claim 2, characterized in that: The end of the feeding pipe is provided with a sealing member matched with the outer shape of the sealing sleeve.

4. The rod mill inlet anti-leakage slurry structure according to claim 3, characterized in that: The sealing ring is configured in a cone shape as a whole.

5. The rod mill inlet anti-leakage slurry structure according to claim 4, characterized in that: The guide rod is arranged along the axis of the sealing sleeve.

6. The anti-leakage slurry structure at the inlet of the rod mill according to claim 5, characterized in that: The guide rods are evenly distributed along the circumference of the sealing sleeve.

7. The rod mill inlet anti-leakage slurry structure according to claim 6, characterized in that: The limiting plate is arranged along the radial direction of the feeding pipe.

8. The rod mill inlet anti-leakage slurry structure according to claim 7, characterized in that: The limiting plate is configured to be in a ring shape coaxially arranged with the feeding pipe.

9. The rod mill inlet anti-leakage slurry structure according to claim 8, characterized in that: An adjusting nut is screwed onto the guide rod.

10. The rod mill inlet anti-leakage slurry structure according to claim 9, characterized in that: The spring is compressed between the limiting plate and the adjusting nut.

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