Vertical mill machine capable of blocking external air

Abstract

The utility model discloses a vertical mill capable of blocking external air, which comprises a mounting seat, a swing arm movably mounted above the mounting seat, a roller rod mounted at the upper end of the swing arm, a grinding roller mounted at the front end of the roller rod, a circular roller door mounted on the outer side of the roller rod, a sealing ring mounted between the roller rod and the circular roller door, and a sealing ring mounted between the roller rod and the circular roller door. A silica gel ring pad is arranged between the sealing ring and the roller rod, a sealing sleeve is connected to the inner side of the surface of the sealing ring, a necking sleeve is arranged on the inner side of the end, away from the sealing ring, of the sealing sleeve, and a rubber spring ring is integrally arranged on the inner side of the necking sleeve. The S-shaped structure of the sealing ring is utilized, the S-shaped structure is complex, circulation of external air and air in the vertical mill is effectively blocked, the S-shaped high-temperature-resistant flexible sealing ring is used outside the grinding roller and fixed between the round roller door and the movable swing arm, and therefore material leakage and air leakage of the mill are reduced, and the oxygen content of flue gas of a kiln tail system is reduced to meet the requirement of the vertical mill for raw materials with high finished product fineness.

Description

Technical Field

[0001] The utility model relates to the technical field of cement production, in particular to a vertical mill capable of blocking external air. Background Art

[0002] Vertical mill is a grinding equipment that integrates fine crushing, drying, grinding, powder selection and conveying. It is widely used in the grinding and ultra-fine grinding of various solid materials in cement, building materials, electric power, metallurgy, chemical industry, non-metallic minerals and other industries. Among them, vertical mill is needed to grind the raw solid materials in cement production.

[0003] During the use of the existing vertical mill, the gap between the grinding roller and the original roller door is large, which makes it easy for the mill to leak materials and air during the grinding process, and the sealing between the grinding roller and the original roller door is poor.

[0004] Therefore, those skilled in the art provide a vertical mill capable of blocking external air to solve the problems raised in the above background technology. Utility Model Content

[0005] The utility model aims to provide a vertical mill capable of blocking external air, so as to solve the problem of poor sealing performance of the existing mills and leakage of materials and air proposed in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A vertical mill capable of blocking external air comprises: a mounting seat, a swing arm movably mounted above the mounting seat, a roller rod mounted on the upper end of the swing arm, a grinding roller mounted on the front end of the roller rod, a circular roller door mounted on the outer side of the roller rod, a sealing ring mounted between the roller rod and the circular roller door, a silicone ring gasket arranged between the sealing ring and the roller rod, a sealing sleeve connected to the inner side of the surface of the sealing ring, a shrinking sleeve arranged on the inner side of one end of the sealing sleeve away from the sealing ring, and a rubber spring ring integratedly arranged on the inner side of the shrinking sleeve.

[0008] As a further solution of the present invention, a movable shaft is installed between the mounting seat and the swing arm, and the mounting seat is rotationally connected to the swing arm through the movable shaft.

[0009] As a further solution of the present invention, a connecting shaft for angle adjustment is provided between the swing arm and the roller rod, and the swing arm is rotationally connected to the roller rod through the connecting shaft.

[0010] As a further solution of the present invention, the sealing sleeve and the sealing ring are fixedly connected, and the outer shape of the sealing sleeve is a wave-shaped structure.

[0011] As a further solution of the present invention, the diameter of the sealing sleeve is larger than the diameter of the shrinking sleeve, and the shrinking sleeve and the sealing sleeve are integrally connected.

[0012] As a further solution of the present invention, the cross-sectional shape of the sealing ring is "S"-shaped.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. A sealing ring is arranged between the roller rod and the circular roller door. A silicone ring pad is arranged inside the sealing ring. The elasticity of the silicone ring pad is used to improve the sealing between the grinding roller and the grinding mill. The sealing ring and the sealing sleeve are connected to each other. The sealing sleeve adopts a corrugated structure design and can be retracted to extend the sealing structure, so that the rubber spring ring at the other end of the sealing sleeve can be sleeved on the outside of the roller rod. The sealing sleeve is used for shielding, and the sealing ring is used to increase the sealing effect and reduce leakage of materials and air.

[0015] 2. Utilize the "S"-shaped structure of the sealing ring. The "S"-shaped structure is relatively complex and effectively blocks the circulation of external air and the air inside the vertical mill. Use an S-shaped high-temperature resistant flexible sealing ring on the outside of the grinding roller and fix it between the circular roller door and the movable swing arm to reduce mill leakage and air leakage, and reduce the oxygen content of the flue gas in the kiln tail system to meet the requirements of the vertical mill for raw materials with high finished fineness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The schematic diagram of the structure of a vertical mill capable of blocking external air.

[0017] Figure 2 The figure is a schematic diagram of the structure of a sealing sleeve in a vertical mill that can block external air.

[0018] Figure 3 The present invention is a schematic diagram of the disassembled structure of a sealing sleeve in a vertical mill that can block external air.

[0019] Figure 4 The schematic diagram is a cross-sectional structure of a sealing ring in a vertical mill that can block external air.

[0020] In the figure: 1. Mounting seat; 2. Swing arm; 3. Movable shaft; 4. Roller rod; 5. Connecting shaft; 6. Round roller door; 7. Sealing sleeve; 8. Grinding roller; 9. Shrink sleeve; 10. Rubber spring ring; 11. Sealing ring; 12. Silicone ring gasket. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 to Figure 4 The utility model provides a vertical mill capable of blocking external air, comprising: a mounting seat 1, a swing arm 2 is movably mounted above the mounting seat 1, a roller rod 4 is mounted on the upper end of the swing arm 2, a grinding roller 8 is mounted on the front end of the roller rod 4, a movable shaft 3 is mounted between the mounting seat 1 and the swing arm 2, and the mounting seat 1 is rotatably connected to the swing arm 2 through the movable shaft 3, a connecting shaft 5 for angle adjustment is arranged between the swing arm 2 and the roller rod 4, and the swing arm 2 is rotatably connected to the roller rod 4 through the connecting shaft 5;

[0023] Specifically, the arrangement of the movable shaft 3 and the connecting shaft 5 facilitates the adjustment of the angle between the swing arm 2 and the mounting seat 1 , thereby improving the flexibility of the grinding roller 8 .

[0024] A circular roller door 6 is installed on the outer side of the roller rod 4, a sealing ring 11 is installed between the roller rod 4 and the circular roller door 6, and a silicone ring gasket 12 is arranged between the sealing ring 11 and the roller rod 4, a sealing sleeve 7 is connected to the inner side of the surface of the sealing ring 11, the sealing sleeve 7 and the sealing ring 11 are fixedly connected, and the outer shape of the sealing sleeve 7 is a wave-shaped structure, a shrinking sleeve 9 is arranged on the inner side of one end of the sealing sleeve 7 away from the sealing ring 11, and a rubber spring ring 10 is integratedly arranged on the inner side of the shrinking sleeve 9, the diameter of the sealing sleeve 7 is larger than the diameter of the shrinking sleeve 9, and the shrinking sleeve 9 and the sealing sleeve 7 are integrally connected, and the cross-sectional shape of the sealing ring 11 is "S"-shaped;

[0025] Specifically, a sealing ring 11 is arranged between the roller rod 4 and the circular roller door 6. The sealing ring 11 is designed to be an "S"-shaped structure. The curved structure of the "S"-shaped structure is used to complicate the sealing structure, thereby effectively blocking the circulation of external air and the internal air of the vertical mill. The other end of the sealing sleeve 7 increases the elasticity of the shrinking sleeve 9 through a rubber spring ring 10, and can be sleeved on the outside of the roller rod 4. The sealing sleeve 7 increases the connectivity between the sealing ring 11 and the roller rod 4, reduces the gap between the sealing ring 11 and the roller rod 4, and avoids leakage of materials and air.

[0026] The working principle of the utility model is:

[0027] When the utility model is used, the roller rod 4 is inserted from the inside of the circular roller door 6, and the grinding roller 8 at one end of the roller rod 4 is located inside the mill. A sealing ring 11 is sleeved between the roller rod 4 and the circular roller door 6, and the sealing ring 11 and the silicone ring gasket 12 seal the gap between the roller rod 4 and the circular roller door 6. Secondly, a shrinking sleeve 9 at one end of the sealing sleeve 7 connected to the inner side of the sealing ring 11 is sleeved on the outer side of the roller rod 4. The shrinking sleeve 9 has a small diameter, and a rubber spring ring 10 is used to increase the flexibility of the shrinking sleeve 9, so that one end of the sealing sleeve 7 is connected to the roller rod 4, and the other end is connected to the inner wall of the sealing ring 11, and the sealing sleeve 7 is used to increase the connectivity between the sealing ring 11 and the roller rod 4, reduce the gap between the sealing ring 11 and the roller rod 4, and avoid leakage of materials and air. Secondly, the sealing ring 11 is an "S"-shaped structure, and the curved structure of the "S"-shaped structure is used to complicate the sealing structure, thereby effectively blocking the circulation of external air and the internal air of the vertical mill.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vertical mill capable of blocking external air, characterized in that: include: A mounting seat (1) is provided, wherein a swing arm (2) is movably mounted above the mounting seat (1), and a roller rod (4) is mounted on the upper end of the swing arm (2), a grinding roller (8) is mounted on the front end of the roller rod (4), a circular roller door (6) is mounted on the outer side of the roller rod (4), a sealing ring (11) is mounted between the roller rod (4) and the circular roller door (6), and a silicone ring gasket (12) is arranged between the sealing ring (11) and the roller rod (4), a sealing sleeve (7) is connected to the inner side of the surface of the sealing ring (11), a shrink sleeve (9) is arranged on the inner side of one end of the sealing sleeve (7) away from the sealing ring (11), and a rubber spring ring (10) is integrally arranged on the inner side of the shrink sleeve (9).

2. A vertical mill capable of blocking external air according to claim 1, characterized in that: A movable shaft (3) is installed between the mounting seat (1) and the swing arm (2), and the mounting seat (1) is rotatably connected to the swing arm (2) via the movable shaft (3).

3. A vertical mill capable of blocking external air according to claim 1, characterized in that: A connecting shaft (5) for angle adjustment is provided between the swing arm (2) and the roller rod (4), and the swing arm (2) is rotationally connected to the roller rod (4) via the connecting shaft (5).

4. A vertical mill capable of blocking external air according to claim 1, characterized in that: The sealing sleeve (7) and the sealing ring (11) are fixedly connected, and the outer shape of the sealing sleeve (7) is a wave-shaped structure.

5. The vertical mill capable of blocking external air according to claim 1, characterized in that: The diameter of the sealing sleeve (7) is greater than the diameter of the shrinking sleeve (9), and the shrinking sleeve (9) and the sealing sleeve (7) are integrally connected.

6. A vertical mill capable of blocking external air according to claim 1, characterized in that: The cross-sectional shape of the sealing ring (11) is "S" shaped.

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