CN212142852U

CN212142852U - Wear-resistant Raymond mill volute

Info

Publication number: CN212142852U
Application number: CN202020166822.8U
Authority: CN
Inventors: 丁庆平; 季泉均; 王勇; 周时根; 曹森
Original assignee: Nantong Liyuanheng Machinery Co ltd
Current assignee: Nantong Liyuanheng Machinery Co ltd
Priority date: 2020-02-13
Filing date: 2020-02-13
Publication date: 2020-12-15
Anticipated expiration: 2030-02-13

Abstract

The utility model discloses a wear-resisting raymond mill spiral case, including the spiral case, its characterized in that: a first gasket is arranged at the bottom of the outer edge of the inner wall of the volute and is L-shaped, a second gasket is further arranged at the joint between the volute air inlet and the volute, a third gasket is arranged on the inner wall of the volute along the central axis a in the horizontal direction and is close to the volute air inlet and arranged at the upper end of the inner wall of the volute; and a fourth gasket and a fifth gasket are arranged on the two sides of the inner wall of the volute chamber along the central axis b in the vertical direction. In the utility model, the L-shaped gasket is added at the bottom of the inner wall of the volute near the outer edge, so that the thickness of the device is enhanced, and the abrasion of the high-pressure fan to the bottom of the inner wall of the volute in the vertical direction and the horizontal direction can be reduced; after the device runs, due to the problem of high-pressure wind impact angle, a gasket with a certain thickness is arranged at a corresponding easy-to-wear part to resist impact; the gasket is arranged at the joint between the volute air inlet and the volute chamber, so that the noise generated during the operation of the device can be reduced.

Description

Wear-resistant Raymond mill volute

Technical Field

The utility model relates to a raymond mill technical field, especially a wear-resisting raymond mill spiral case.

Background

The Raymond mill is a common milling device and is mainly used for high-fineness powder processing of 280 materials in industries such as barite, calcite, potash feldspar, talc, marble, limestone, dolomite, fluorite, lime, activated clay, activated carbon, bentonite, kaolin, cement, phosphate rock, gypsum, glass, bluestone, petroleum coke, chemical raw material heat-insulating materials and the like, wherein the Mohs hardness of the materials is not more than 9.3, and the humidity of the materials is less than 6%.

When the Raymond mill in the prior art is used, due to the problem of high-pressure wind impact angle of the volute in high-speed operation, the lower part of the inner wall of the air inlet of the volute and other positions are washed, the abrasion is large, the consumption of the volute in production is large, and the production cost is overlarge.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a wear-resistant Raymond mill volute.

The utility model adopts the technical proposal that: a wear-resistant Raymond mill volute comprises a volute, wherein a first gasket is arranged at the bottom of the outer edge of the inner wall of the volute and is L-shaped, a second gasket is further arranged at the joint between an air inlet of the volute and a volute chamber, a third gasket is arranged on the inner wall of the volute chamber along the central axis a in the horizontal direction and is close to the air inlet of the volute and arranged at the upper end of the inner wall of the volute chamber;

and a fourth gasket and a fifth gasket are arranged on the inner wall of the volute chamber along two sides of the central axis b in the vertical direction, an included angle alpha between the fourth gasket and the central axis b in the vertical direction is 40-50 degrees, and an included angle beta between the fifth gasket and the central axis b in the vertical direction is 40-50 degrees.

Further, the second gasket comprises a second gasket a and a second gasket b which are symmetrical along the central axis c in the thickness direction of the volute, and the outer edges of the second gasket a and the second gasket b in the horizontal direction are both linear.

Further, the opposite surfaces of the second gasket a and the second gasket b are both in irregular arc shapes.

Furthermore, the gasket IV and the gasket V are both arranged at the upper end of the inner wall of the volute chamber.

Further, the outer edges of the fourth gasket and the fifth gasket are arc-shaped.

Furthermore, the first gasket, the second gasket, the third gasket and the fourth gasket are welded or bolted with the volute.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in be close to outside edge increase L type gasket bottom the spiral case inner wall, reinforcing means thickness itself can reduce high pressure positive blower to the wearing and tearing of the vertical direction in spiral case inner wall bottom and horizontal direction.

2. After the device is operated, due to the problem of high-pressure wind impact angle, a gasket with a certain thickness is arranged at the corresponding easy-to-wear part to resist impact.

3. The gasket is arranged at the joint between the volute air inlet and the volute chamber, so that the noise generated during the operation of the device can be reduced.

Drawings

FIG. 1 is a front view of a wearable Raymond mill volute of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a schematic structural diagram of the first gasket of the present invention.

Wherein: 1-volute, 2-gasket I, 3-volute, 4-gasket II, 41-gasket II a, 42-gasket II b, 5-axle wire a, 6-gasket III, 7-axle wire b, 8-gasket IV, 9-gasket V and 10-axle wire c.

Detailed Description

In order to deepen the understanding of the present invention, the present invention is further explained with reference to the drawings and the embodiments, which are only used to explain the present invention and are not limited to the protection scope of the present invention.

As shown in fig. 1, 2 and 3, the wear-resistant Raymond mill volute comprises a volute 1, a first gasket 2 is arranged at the bottom of the outer edge of the inner wall of the volute 1, the first gasket 2 is L-shaped, a second gasket 4 is further arranged at the connection position between an air inlet of the volute 1 and a volute chamber 3, a third gasket 6 is arranged at the position of the inner wall of the volute chamber 3 along a horizontal central axis a5, and the third gasket 6 is close to the air inlet of the volute 1 and is arranged at the upper end of the inner wall of the volute chamber 3.

In the above embodiment, two sides of the inner wall of the volute chamber 3 along the vertical central axis b7 are provided with the four gaskets 8 and the five gaskets 9, an included angle α between the four gaskets 8 and the vertical central axis b7 is 40-50 °, an included angle β between the five gaskets 9 and the vertical central axis b7 is 40-50 °, and the four gaskets 8 and the five gaskets 9 are both arranged at the upper end of the inner wall of the volute chamber 3.

In the above embodiment, the second gasket 4 includes the second gasket a41 and the second gasket b42 which are symmetrical along the central axis c10 in the thickness direction of the scroll casing 1, the outer edges of the second gasket a41 and the second gasket b42 in the horizontal direction are both straight, the opposite surfaces of the second gasket a41 and the second gasket b42 are both in an irregular arc shape, the high-pressure fan has a smaller impact angle when passing through the second gasket 4 on the outer side of the scroll casing compared with that before refitting, and the high-pressure fan directly impacts the corner where the air outlet is connected with the scroll casing 3 before the improvement of the device, so that the impact force is large.

In the above embodiment, the outer edges of the four spacers 8 and the five spacers 9 are arc-shaped, and the arc-shaped outer edges can buffer the impact of high-pressure wind compared with other regularly-shaped outer edges, and do not have too great weakening effect on the magnitude of the wind force, and the wind direction can be deflected to continue to circulate in the volute 3 and act on materials and the like.

In the above embodiment, the first gasket 2, the second gasket 4, the third gasket 6, the fourth gasket 8 and the fifth gasket 9 are all welded or bolted to the volute 3, and are connected through bolts, so that when the gasket is needed, each gasket is connected to the inside of the device or the device body through the bolts, and after the gasket is used for a period of time, if the abrasion of each gasket is serious, the gasket can be detached and replaced, the service life of the whole device is prolonged, and the production cost is reduced.

The embodiment of the present invention discloses a preferred embodiment, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention according to the above embodiment, and make different extensions and changes, but do not depart from the spirit of the present invention, all of which are within the protection scope of the present invention.

Claims

1. The utility model provides a wear-resisting raymond mill spiral case, includes the spiral case, its characterized in that: a first gasket is arranged at the bottom of the outer edge of the inner wall of the volute and is L-shaped, a second gasket is further arranged at the joint between the volute air inlet and the volute, a third gasket is arranged on the inner wall of the volute along the central axis a in the horizontal direction and is close to the volute air inlet and arranged at the upper end of the inner wall of the volute;

2. The wear resistant Raymond mill volute of claim 1, wherein: the second gasket comprises a second gasket a and a second gasket b which are symmetrical along the central axis c in the thickness direction of the volute, and the outer edges of the second gasket a and the second gasket b in the horizontal direction are all linear.

3. The wear resistant Raymond mill volute of claim 2, wherein: and the opposite surfaces of the second gasket a and the second gasket b are both in irregular arc shapes.

4. The wear resistant Raymond mill volute of claim 1, wherein: and the gasket IV and the gasket V are arranged at the upper end of the inner wall of the volute chamber.

5. The wear resistant Raymond mill volute of claim 1 or 4, wherein: the outer edges of the fourth gasket and the fifth gasket are arc-shaped.

6. The wear resistant Raymond mill volute of claim 1, 2 or 4, wherein: and the first gasket, the second gasket, the third gasket, the fourth gasket and the fifth gasket are welded or bolted with the volute.