CN218902006U

CN218902006U - Seal cover for raw material grinding roller

Info

Publication number: CN218902006U
Application number: CN202223011815.9U
Authority: CN
Inventors: 郑雄良
Original assignee: Guizhou Senyao Cement Co ltd
Current assignee: Guizhou Senyao Cement Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-04-25
Anticipated expiration: 2032-11-11

Abstract

The utility model relates to the technical field of cement production related equipment, in particular to a sealing cover for a raw material grinding roller, which is sleeved on the outer side of the grinding roller and comprises the following components: the inner cover is in a ring-mounted structure and sleeved on the outer side of the grinding roller, and a connecting part is arranged at the end part of the inner cover; according to the utility model, the sealing rings are arranged between the sealing cover group and each flange piece, so that the sealing performance between the sealing cover group and the flange piece is improved, and meanwhile, adjacent separation cavities formed by the flange pieces can be blocked, so that gas leakage is avoided, and the sealing effect is further enhanced.

Description

Seal cover for raw material grinding roller

Technical Field

The utility model relates to the technical field of cement production related equipment, in particular to a sealing cover for a raw material grinding roller.

Background

In the production process of cement, the agglomerated cement raw material is put into a vertical mill device to be ground into powder, the vertical mill device comprises a grinding chamber and a grinding roller rotatably arranged in the grinding chamber, and one end of the grinding roller extends out of the wall body of the grinding chamber and is connected with a driving device for driving the grinding roller to rotate. The temperature in the mill should be kept at 80-90 ℃ during the grinding process of the grinding roller, and the negative pressure of the grinding roller is about 20-10000 Pa, so the tightness between the grinding roller and the wall of the grinding chamber is particularly important for the quality of cement production.

As disclosed in chinese patent publication No. CN216172839U, a sealing cover for a raw material grinding roller in the field of cement production related equipment includes a first sealing portion, a cylindrical grinding roller cover and a cylindrical connecting portion, wherein the grinding roller cover is coaxial with the connecting portion, and one end of the grinding roller cover is in sealing connection with the connecting portion; the first sealing part comprises a plurality of frameworks and a plurality of flange plates which are coaxial and are arranged at intervals, a through hole is formed in the center of each flange plate, the inner wall of each through hole is connected with the outer wall of the grinding roller cover, and connecting holes are formed in the periphery of each through hole.

In the technical scheme, a plurality of groups of flange plates are matched with the sealing sleeve to realize a secondary leakage-proof effect, but the sealing sleeve is fixed with the first flange plate by bolts according to the description of the sealing sleeve, and the sealing sleeve is fixed by steel plates, so that the sealing sleeve is complex to install by adopting a bolt fixing mode, and the achieved sealing performance is common.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a sealing cover for a raw material grinding roller.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the sealing cover for the raw material grinding roller is designed to be sleeved on the outer side of the grinding roller, and comprises:

the inner cover is in a ring-mounted structure and sleeved on the outer side of the grinding roller, and a connecting part is arranged at the end part of the inner cover;

the flange piece is sleeved on the outer side of the inner cover, and at least two groups of flange pieces are arranged along the axial direction of the inner cover;

the sealing cover group is sleeved on the outer peripheral surfaces of the plurality of groups of flange components and is detachably connected with the plurality of groups of flange components;

and a sealing part is further arranged between the sealing cover group and the flange piece.

Preferably, the sealing component is a sealing ring, an annular groove is formed in the outer peripheral surface of the flange piece, and the sealing ring is installed in the annular groove.

Preferably, the flange member is provided with four groups, and the diameters of the four groups of flange members decrease in sequence, and the peripheral surface of the flange member is provided with an inclined plane.

Preferably, four groups of connecting rods are installed among the flange pieces in a penetrating manner, and a plurality of groups of connecting rods are arranged along the circumferential direction of the flange pieces.

Preferably, the sealing cover group comprises an outer sleeve, a frustum cavity is formed in the inner side of the outer sleeve, the inner wall of the outer sleeve can be in contact with each inclined surface, a limit ring and internal threads are respectively arranged at two ends of the outer sleeve, and a blocking cover is connected with the internal threads in a threaded manner.

Preferably, a sealing gasket is arranged between the inner side surface of the limit ring and the adjacent flange piece.

The sealing cover for the raw material grinding roller has the beneficial effects that: according to the utility model, the sealing rings are arranged between the sealing cover group and each flange piece, so that the sealing performance between the sealing cover group and the flange piece is improved, and meanwhile, adjacent separation cavities formed by the flange pieces can be blocked, so that gas leakage is avoided, and the sealing effect is further enhanced.

Drawings

FIG. 1 is a schematic view of a seal cover for a raw mill roll according to the present utility model;

FIG. 2 is a cross-sectional view of a seal cover for a raw mill roll in accordance with the present utility model;

fig. 3 is an enlarged schematic view of a region a of a seal cover for a raw grinding roller according to the present utility model.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: grinding roller 1, inner cover 2, connecting part 21, flange 3, inclined surface 31, connecting rod 32, sealing cover group 4, outer cover 41, limit ring 42, blocking cover 43, sealing gasket 44, sealing component 5 and ring groove 51.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 to 3, a seal cover for a raw mill roll is fitted over the outside of a mill roll 1, the seal cover comprising:

the inner cover 2 is in a ring-mounted structure and sleeved on the outer side of the grinding roller 1, and a connecting part 21 is arranged at the end part of the inner cover 2;

the flange member 3 is sleeved on the outer side of the inner cover 2, and at least two groups of flange members are arranged along the axial direction of the inner cover 2;

the sealing cover group 4 is sleeved on the outer peripheral surfaces of the plurality of groups of flange components 3, and the sealing cover group 4 is detachably connected with the plurality of groups of flange components 3; wherein, sealing member 5 is also provided between sealing cap set 4 and flange member 3.

Furthermore, in the present utility model, the sealing member 5 is a sealing ring, the outer peripheral surface of the flange member 3 is provided with a ring groove 51, and the sealing ring is installed in the ring groove 51, in this embodiment, a sealing ring is disposed between the sealing cover set 4 and each flange member 3, so as to improve the tightness between the sealing cover set 4 and the flange member 3, and meanwhile, adjacent separation cavities formed by the flange members 3 can be blocked to avoid gas leakage, thereby further enhancing the sealing effect.

Still further, in this embodiment, the flange member 3 is provided with four groups, and the diameters of the four groups of flange members 3 decrease in sequence, and the outer circumferential surface of the flange member 3 is provided with an inclined plane 31, where the sealing cover group 4 includes an outer sleeve 41, a frustum cavity is provided on the inner side of the outer sleeve 41, the inner wall of the outer sleeve 41 can contact with each inclined plane 31, two ends of the outer sleeve 41 are respectively provided with a limit ring 42 and an internal thread, and a blocking cover 43 is screwed in the internal thread.

Specifically, in this embodiment, the blocking cover 43 and the outer sleeve 41 are in a manner of being mutually screwed and fixed so as to fix the outer sleeve 41 on the outer sides of the multiple groups of flange members 3, wherein the inner side of the outer sleeve 41 is provided with the frustum holes which can be mutually extruded with the inclined planes of the flange members 3 so as to press the sealing rings on the flange members 3, thereby ensuring that the sealing operation between the outer sleeve 41 and the flange members 3 can be completed simultaneously when the outer sleeve 41 is installed, and the sealing device is simple and practical in structure.

In other words, the four sets of flange members 3 are penetrated by the connecting rods 32, and the connecting rods 32 are provided with a plurality of sets along the circumferential direction of the flange members 3.

In order to further enhance the sealing property between the stop collar 42 of the outer sleeve 41 and the flange member 3, a sealing gasket 44 is provided between the inner side surface of the stop collar 42 and the adjacent flange member 3 in this embodiment.

The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. The utility model provides a raw materials is sealed cowling for grinding roller, suit is in the outside of grinding roller (1), this sealed cowling includes:

an inner cover (2) which is in a ring-shaped structure and is sleeved on the outer side of the grinding roller (1), wherein a connecting part (21) is arranged at the end part of the inner cover (2);

the flange piece (3) is sleeved on the outer side of the inner cover (2), and at least two groups of flange pieces are arranged along the axial direction of the inner cover (2);

the sealing cover group (4) is sleeved on the outer peripheral surfaces of the plurality of groups of flange components (3), and the sealing cover group (4) is detachably connected with the plurality of groups of flange components (3);

wherein, still be provided with sealing member (5) between sealed cowling group (4) and flange spare (3).

2. A seal cover for a raw mill roll according to claim 1, characterized in that: the sealing component (5) is a sealing ring, an annular groove (51) is formed in the peripheral surface of the flange piece (3), and the sealing ring is installed in the annular groove (51).

3. A seal cover for a raw mill roll according to claim 2, characterized in that: the flange parts (3) are provided with four groups, the diameters of the four groups of flange parts (3) are sequentially decreased, and the peripheral surface of the flange part (3) is provided with an inclined surface (31).

4. A seal cover for a raw mill roll according to claim 3, characterized in that: connecting rods (32) are installed among the four groups of flange pieces (3) in a penetrating mode, and multiple groups of connecting rods (32) are arranged along the circumferential direction of the flange pieces (3).

5. A seal cover for a raw mill roll according to claim 3, characterized in that: the sealing cover group (4) comprises an outer sleeve (41), a frustum cavity is formed in the inner side of the outer sleeve (41), the inner wall of the outer sleeve (41) can be in contact with each inclined surface (31), a limit ring (42) and internal threads are respectively arranged at two ends of the outer sleeve (41), and a blocking cover (43) is connected in the internal threads in a threaded mode.

6. A seal cover for a raw mill roll according to claim 5, characterized in that: a sealing gasket (44) is arranged between the inner side surface of the limit ring (42) and the adjacent flange piece (3).