阅读说明：本技术 一种立磨增摩辊套 (Vertical mill friction-increasing roller sleeve ) 是由 赵俊 于 2019-10-09 设计创作，主要内容包括：本发明涉及一种立磨增摩辊套,包括本体,本体的外径为1m～3m,本体的外侧圆周面上开设有多个沿圆周方向等角度分布的弧形凹槽,每个弧形凹槽的宽度≤150mm,深度≤40mm；本发明借助粉料自身来增加辊套的摩擦力,从而大幅提高了粉磨效率,并且使得粉料在立磨内均匀分布以消除了振动,同时延长了辊套的使用寿命。(The invention relates to a vertical mill friction-increasing roller sleeve which comprises a body, wherein the outer diameter of the body is 1-3 m, a plurality of arc-shaped grooves which are distributed at equal angles along the circumferential direction are formed in the circumferential surface of the outer side of the body, the width of each arc-shaped groove is less than or equal to 150mm, and the depth of each arc-shaped groove is less than or equal to 40 mm; the invention increases the friction force of the roller sleeve by virtue of the powder, thereby greatly improving the grinding efficiency, enabling the powder to be uniformly distributed in the vertical mill to eliminate vibration and simultaneously prolonging the service life of the roller sleeve.)

1. The friction-increasing roller sleeve for the vertical mill comprises a body and is characterized in that a plurality of arc-shaped grooves which are distributed at equal angles along the circumferential direction are formed in the circumferential surface of the outer side of the body, the width of each arc-shaped groove is less than or equal to 150mm, and the outer diameter of the body is 1-3 m.

2. The friction-increasing roller sleeve of a vertical mill according to claim 1, wherein the depth of each arc-shaped groove is less than or equal to 40 mm.

Technical Field

The invention relates to a friction-increasing roller sleeve of a vertical mill.

Background

The vertical mill is used as a main grinding device and widely applied to occasions of grinding raw materials, cement, coal powder, slag, steel slag and the like, and the roller sleeve is an important part in the vertical mill and is used for driving materials to realize grinding.

The existing vertical mill roller sleeve is made of high-chromium cast iron or double-layer alloy centrifugally cast, the surface of the roller sleeve is smooth, the friction force between the roller surface and materials is small, particularly powdery materials are not beneficial to biting the materials into a grinding area of the grinding roller for grinding, the grinding efficiency is low, and the powder cannot be taken away by the roller sleeve and is unevenly distributed in the vertical mill, so that the vertical mill generates large vibration during operation, and further improvement is waited.

Disclosure of Invention

In view of the current situation of the prior art, the invention aims to provide a friction increasing roller sleeve of a vertical mill, which greatly improves the grinding efficiency, eliminates the vibration and prolongs the service life.

The technical scheme adopted by the invention for solving the technical problems is as follows: the friction-increasing roller sleeve for the vertical mill comprises a body and is characterized in that a plurality of arc-shaped grooves which are distributed at equal angles along the circumferential direction are formed in the circumferential surface of the outer side of the body, the width of each arc-shaped groove is less than or equal to 150mm, and the outer diameter of the body is 1-3 m.

Preferably, the depth of each arc-shaped groove is less than or equal to 40 mm.

Compared with the prior art, the invention has the advantages that: the invention increases the friction force of the roller sleeve by virtue of the powder, thereby greatly improving the grinding efficiency, enabling the powder to be uniformly distributed in the vertical mill to eliminate vibration and simultaneously prolonging the service life of the roller sleeve.

Drawings

FIG. 1 is a block diagram of the present invention.

Detailed Description

As shown in figure 1, the friction-increasing roller sleeve for the vertical mill comprises a body 1, wherein the outer diameter of the body 1 is 1-3 m, a plurality of arc-shaped grooves 11 which are distributed at equal angles along the circumferential direction are formed in the circumferential surface of the outer side of the body 1, the width of each arc-shaped groove 11 is less than or equal to 150mm, and the depth of each arc-shaped groove 11 is less than or equal to 40 mm.

The working principle is as follows: in the operation process of the vertical mill, the powder can be gathered in each arc-shaped groove 11 on the roller sleeve, the friction force between the powder and the powder is greater than the friction force between the roller sleeve and the powder, therefore, the subsequent powder can rotate along with the powder embedded in each arc-shaped groove 11, and further can be fully milled with a grinding roller, so that the grinding efficiency of the vertical mill is improved, and meanwhile, the vibration of the vertical mill is reduced, meanwhile, because the powder in the arc-shaped grooves 11 forms the effect of a material cushion, the subsequent powder can not be in direct contact with the roller sleeve, and the wear-resisting service life of the roller sleeve is prolonged to a certain extent.

The existing vertical mill roller sleeve is made of high-chromium cast iron or double-layer alloy centrifugally cast, the surface of the existing vertical mill roller sleeve is smooth, the friction force between the roller surface and materials is smaller, particularly powdery materials are not beneficial to biting the materials into a grinding area of the grinding roller for grinding, the grinding efficiency is lower, and the powder cannot be taken away by the roller sleeve and is unevenly distributed in the vertical mill, so that the vertical mill generates larger vibration during operation; the invention increases the friction force of the roller sleeve by virtue of the powder, thereby greatly improving the grinding efficiency, enabling the powder to be uniformly distributed in the vertical mill to eliminate vibration and simultaneously prolonging the service life of the roller sleeve.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.