A new type of vertical mill blowing ring

Abstract

The utility model discloses a novel vertical mill blowing ring, including a blowing ring body; the blowing ring body includes a plurality of arc-shaped blowing ring segments, the blowing ring segments include an inner arc plate, an outer arc plate, a cover plate and a partition plate, the cover plate is connected to the top of the inner arc plate and / or the partition plate; the partition plate and the cover plate are both made of wear-resistant plates, the thickness of the partition plate is greater than the thickness of the arc plate in the cover plate and the thickness of the cross plate; a plurality of blowing ring segments are connected in sequence to form a full-circle blowing ring body. The use of the cover plate in the utility model strengthens the overall structure, and while increasing the strength, the number of partitions can be appropriately reduced and the thickness of the partition can be increased. The partition plate is made of wear-resistant material, is not easy to wear, and has a longer service life. Under the action of material and wind, the cover plate in the blowing ring body is greatly worn. When replacing, only the cover plate needs to be replaced. Since the cover plate is located above the inner arc plate and the partition plate, it is easier to replace, the replacement time is short, and the production cost is low.

Description

Technical Field

[0001] The utility model relates to the field of vertical mills, in particular to a novel vertical mill blowing ring. Background Art

[0002] Vertical mill is an ideal large-scale grinding equipment, widely used in cement, electric power, metallurgy, chemical industry, non-metallic minerals and other industries. It integrates crushing, drying, grinding, grading and conveying, has high production efficiency, and can grind block, granular and powdered raw materials into required powdered materials.

[0003] In the vertical mill, the blowing ring is installed between the grinding body (i.e. the annular shell) and the grinding disc of the vertical mill. Under the action of the wind passing through the blowing ring, some of the heavier materials scattered from the grinding disc fall onto the grinding disc under the action of gravity, and some of them pass over the material retaining ring on the grinding disc and fall into the annular gap between the grinding body and the grinding disc. Most of them pass through the grinding body upward with the wind and enter the powder classifier for screening. Qualified fine powder passes through the air outlet of the powder classifier and becomes the finished product (the powder classifier is on the grinding body, and the air outlet of the powder classifier is connected to the fan). The blowing ring is welded on the edge of the inner cylinder of the grinding body, and the blowing ring is close to the grinding body. The existing full-circle blowing ring is made in sections, that is, the full-circle blowing ring includes blowing ring sections, and the blowing ring sections include inner arc plates and outer arc plates. A certain number of partitions are welded between the inner arc plates and the outer arc plates, so that there are many wind chambers on a group of blowing ring sections. A certain number of blowing ring sections form a full-circle blowing ring, and the full-circle blowing ring is welded to the grinding body. Under the joint action of wind and material, the internal partitions of the full-circle blowing ring are easily worn, and the partitions need to be replaced regularly. The partitions are located between the inner arc plates and the outer arc plates, which are difficult to replace. In addition, there are many partitions, and replacement is not only time-consuming and labor-intensive, which increases costs, but also requires long-term production suspension, affecting production efficiency. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a new type of vertical mill blowing ring in view of the deficiencies of the above-mentioned prior art. The new type of vertical mill blowing ring is connected with a cover plate at the top of the inner arc plate of the blowing ring body or / and the top of the partition. The use of the cover plate strengthens the overall structure, can reduce the number of partitions and increase the thickness of the partitions. The partition is made of wear-resistant material and has a longer service life. The thickness of the partition is greater than the thickness of the arc plate in the cover plate and the thickness of the cross plate. Under the action of the material and the wind, the cover plate is greatly worn. When replacing, only the cover plate needs to be replaced. Since the cover plate is located above the inner arc plate and the partition, it is easier to replace, the replacement time is short, and the production cost is low.

[0005] In order to achieve the above technical purpose, the technical solution adopted by the utility model is:

[0006] A novel vertical mill blowing ring comprises a blowing ring body; the blowing ring body comprises a plurality of arc-shaped blowing ring segments, the blowing ring segments comprise an inner arc plate, an outer arc plate and a partition plate, and the inner arc plate and the outer arc plate are connected by the partition plate;

[0007] The blowing ring segment further comprises an arc-shaped cover plate, which is connected to the top of the inner arc plate and / or the partition plate; the cover plate is an arc-shaped grid structure formed by connecting a plurality of arc-shaped plates and a transverse plate;

[0008] The partition plate and the cover plate are both made of wear-resistant plates, and the thickness of the partition plate is greater than the thickness of the arc plate in the cover plate and the thickness of the cross plate;

[0009] A plurality of blowing ring segments are connected in sequence to form a full-circle blowing ring body.

[0010] As a further improved technical solution of the utility model, the partition is obliquely connected between the inner arc plate and the outer arc plate.

[0011] As a further improved technical solution of the utility model, multiple arc plates are arranged with gaps from the inside to the outside, multiple horizontal plates are arranged with gaps in the arc direction, and each horizontal plate is connected to multiple arc plates at the same time to form an arc grid structure.

[0012] As a further improved technical solution of the utility model, the spacing between adjacent transverse plates and the spacing between adjacent arc-shaped plates are both smaller than the spacing between adjacent partitions.

[0013] As a further improved technical solution of the utility model, the blowing ring segment further includes a windshield, the outer arc plate is connected to the windshield through an ear plate, and the windshield is inclined in the direction where the inner arc plate is located;

[0014] The windshield is made of wear-resistant material.

[0015] As a further improved technical solution of the utility model, the bottom of the blowing ring body is also connected to an arc-shaped support plate, and a plurality of arc-shaped support plates are sequentially connected to form a full-circle support plate, and the inner circle of the full-circle support plate is connected to the bottom of the outer arc plate in the blowing ring body;

[0016] The blowing ring body is located between the grinding disc and the grinding body, there is a gap between the blowing ring body and the grinding disc, and the blowing ring body is connected to the grinding body through a full-circle supporting plate by welding.

[0017] As a further improved technical solution of the utility model, a plurality of support rods are fixedly connected to the outer surface of the outer arc plate in the blowing ring body, and the support rods are connected to the grinding body by welding.

[0018] As a further improved technical solution of the utility model, the partition is connected to the inner arc plate and the outer arc plate by welding, and the cover plate is connected to the top of the inner arc plate or the top of the partition by welding; multiple blowing ring segments are connected by welding to form a full-circle blowing ring body;

[0019] The inner ring of the full-circle supporting plate is connected to the bottom of the outer arc plate in the blowing ring body by welding.

[0020] The beneficial effects of the utility model are:

[0021] Compared with the structure of the existing blowing ring, the utility model adds a cover plate on the partition, and the cover plate strengthens the overall structure, so the partitions in the blowing ring body can be pulled apart, that is, the spacing between the partitions is increased, and the thickness of the partition is increased while the partition uses a wear-resistant plate, the partition is not easy to wear, and the service life is greatly increased. A cover plate made of wear-resistant plate is added on the partition (the height is about 50mm), and the cover plate can be welded on the partition and / or the inner arc plate. The thickness of the partition is greater than the thickness of the arc plate in the cover plate and the thickness of the cross plate, reducing the chance of partition wear. Under the action of material and wind, the cover plate in the blowing ring body is greatly worn. When replacing, only the cover plate needs to be replaced. Since the cover plate is located on the partition and / or the inner arc plate, it is easy to replace, the replacement time is short, and the production cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a vertical mill jet ring of the utility model installed on a vertical mill.

[0023] Figure 2 for Figure 1 A partial enlarged view of middle A.

[0024] Figure 3 This is a schematic diagram of the structure of the utility model after the blowing ring body hides the cover plate.

[0025] Figure 4 It is a schematic diagram of the structure of the utility model after the blowing ring is segmented and hidden behind the cover plate.

[0026] Figure 5 for Figure 4 AA section view in.

[0027] Figure 6 This is a top view of the utility model after the blowing ring is segmented and the cover plate is hidden.

[0028] Figure 7 for Figure 6 BB cross-section diagram in.

[0029] Figure 8 It is a top view of the cover plate in the blowing ring segment of the utility model.

[0030] Fig. 9 It is a side view of the cover plate in the blowing ring segment of the utility model. DETAILED DESCRIPTION

[0031] The specific implementation of the utility model is further described below according to the accompanying drawings:

[0032] A novel vertical mill blowing ring comprises a blowing ring body 3; the blowing ring body 3 is located between a grinding disc 1 and a grinding body 2, there is a gap between the blowing ring body 3 and the grinding disc 1, and the blowing ring body 3 is connected to the grinding body 2 through a full-circle support plate 3B by welding.

[0033] like Figure 1-9 As shown, the blowing ring body 3 includes a plurality of arc-shaped blowing ring segments 3A, and the blowing ring segments 3A include an inner arc plate 3A1, an outer arc plate 3A2, a partition plate 3A3 and an arc-shaped cover plate 3A4, and the inner arc plate 3A1 and the outer arc plate 3A2 are connected by the partition plate 3A3; the cover plate 3A4 is welded and fixed to the top of the inner arc plate 3A1 and / or the top of the partition plate 3A3; the cover plate 3A4 is an arc-shaped grid structure formed by connecting a plurality of arc plates 3A41 and a cross plate 3A42.

[0034] The partition plate 3A3 and the cover plate 3A4 are both made of wear-resistant plates, and the thickness of the partition plate 3A3 is greater than the thickness of the arc plate 3A41 in the cover plate 3A4 and the thickness of the cross plate 3A42. Compared with the prior art, the present embodiment increases the thickness of the partition plate 3A3 and increases the spacing between adjacent partition plates 3A3. The partition plate 3A3 also uses a wear-resistant plate, so the partition plate 3A3 is not easily worn during use. The service life of the partition plate 3A3 is greatly increased.

[0035] A plurality of blowing ring segments 3A are connected in sequence to form a full-circle blowing ring body 3 .

[0036] In this embodiment, the partition plate 3A3 is connected obliquely between the inner arc plate 3A1 and the outer arc plate 3A2.

[0037] In this embodiment, Figure 8-9 As shown, multiple arc plates 3A41 are arranged with gaps from the inside to the outside, and multiple horizontal plates 3A42 are arranged with gaps in the arc direction. Each horizontal plate 3A42 is connected to multiple arc plates 3A41 at the same time, thereby forming an arc grid structure.

[0038] In this embodiment, the spacing between adjacent transverse plates 3A42 and the spacing between adjacent arc-shaped plates 3A41 are both smaller than the spacing between adjacent partition plates 3A3.

[0039] In this embodiment, Figure 1-7The blowing ring segment 3A also includes a windshield 3A6. The outer arc plate 3A2 is welded and fixed to the windshield 3A6 through the ear plate 3A5. The windshield 3A6 is inclined in the direction where the inner arc plate 3A1 is located.

[0040] The windshield 3A6 is made of wear-resistant material.

[0041] In this embodiment, the bottom of the blowing ring body 3 is also connected to an arc-shaped support plate, and multiple arc-shaped support plates are connected in sequence to form a full-circle support plate 3B, and the inner circle of the full-circle support plate 3B is welded and fixed to the bottom of the outer arc plate 3A2 in the blowing ring body 3.

[0042] In this embodiment, a plurality of support rods 3C are fixedly connected to the outer surface of the outer arc plate 3A2 in the blowing ring body 3, and the support rods 3C are connected to the grinding body 2 by welding.

[0043] In this embodiment, the partition 3A3 is connected to the inner arc plate 3A1 and the outer arc plate 3A2 by welding, and the cover plate 3A4 is connected to the top of the inner arc plate 3A1 or the top of the partition 3A3 by welding; multiple blowing ring segments 3A are connected by welding to form a full-circle blowing ring body 3.

[0044] When a plurality of blowing ring segments 3A are connected in sequence to form a full-circle blowing ring body 3, a plurality of cover plates 3A4 can be spliced ​​together to form a full-circle cover plate, a plurality of inner arc plates 3A1 can be spliced ​​together to form a full-circle inner arc plate, a plurality of outer arc plates 3A2 can be spliced ​​together to form a full-circle outer arc plate, and a plurality of wind shield plates 3A6 can be spliced ​​together to form a full-circle wind shield, wherein the cover plate 3A4 is located between the inner arc plate 3A1 and the outer arc plate 3A2. The number of the inner arc plates 3A1, the outer arc plates 3A2, the cover plates 3A4, and the wind shield plates 3A6 is the same.

[0045] Compared with the structure of the existing blowing ring, the present embodiment is provided with a cover plate 3A4, which can strengthen the overall structure, so that the partition plates 3A3 in the blowing ring body 3 can be pulled apart, that is, the spacing between the partition plates 3A3 is increased, and the thickness of the partition plates 3A3 is increased while the partition plates 3A3 use wear-resistant plates, so the partition plates 3A3 are not easy to wear and the service life is greatly increased. A cover plate 3A4 made of wear-resistant plates is added on the partition plates 3A3 (the height is about 50mm), and the cover plate 3A4 can be welded on the partition plates 3A3. Under the action of the material and the wind, the cover plate 3A4 in the blowing ring body 3 is greatly worn. When replacing, only the cover plate 3A4 needs to be replaced. Since the cover plate 3A4 is on top, it is easy to replace, the replacement time is short, and the manufacturing cost is low.

[0046] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention shall be based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present invention.

Claims

1. A novel vertical mill blowing ring, comprising a blowing ring body (3); the blowing ring body (3) comprises a plurality of arc-shaped blowing ring segments (3A); the blowing ring segments (3A) comprise an inner arc plate (3A1), an outer arc plate (3A2) and a partition plate (3A3); the inner arc plate (3A1) and the outer arc plate (3A2) are connected by the partition plate (3A3); Features: The blowing ring segment (3A) further comprises an arc-shaped cover plate (3A4), wherein the cover plate (3A4) is connected to the top of the inner arc plate (3A1) and / or the partition plate (3A3); the cover plate (3A4) is an arc-shaped grid structure formed by connecting a plurality of arc-shaped plates (3A41) and a transverse plate (3A42); The partition plate (3A3) and the cover plate (3A4) are both made of wear-resistant plates, and the thickness of the partition plate (3A3) is greater than the thickness of the arc plate (3A41) in the cover plate (3A4) and the thickness of the transverse plate (3A42); A plurality of blowing ring segments (3A) are connected in sequence to form a full-circle blowing ring body (3).

2. The novel vertical mill blowing ring according to claim 1 is characterized in that: The partition plate (3A3) is obliquely connected between the inner arc plate (3A1) and the outer arc plate (3A2).

3. The novel vertical mill blowing ring according to claim 1 is characterized in that: A plurality of arc plates (3A41) are arranged in sequence with gaps from the inside to the outside, a plurality of transverse plates (3A42) are arranged in sequence with gaps in the arc direction, and each transverse plate (3A42) is simultaneously connected to a plurality of arc plates (3A41), thereby forming an arc grid structure.

4. The novel vertical mill blowing ring according to claim 3 is characterized in that: The spacing between adjacent transverse plates (3A42) and the spacing between adjacent arc-shaped plates (3A41) are both smaller than the spacing between adjacent partition plates (3A3).

5. The novel vertical mill blowing ring according to claim 1 is characterized in that: The blowing ring segment (3A) further comprises a windshield (3A6), the outer arc plate (3A2) is connected to the windshield (3A6) via an ear plate (3A5), and the windshield (3A6) is inclined in the direction where the inner arc plate (3A1) is located; The windshield (3A6) is made of wear-resistant material.

6. The novel vertical mill blowing ring according to claim 1 is characterized in that: The bottom of the blowing ring body (3) is also connected to an arc-shaped support plate, and a plurality of arc-shaped support plates are sequentially connected to form a full-circle support plate (3B), and the inner circle of the full-circle support plate (3B) is connected to the bottom of the outer arc plate (3A2) in the blowing ring body (3); The blowing ring body (3) is located between the grinding disc (1) and the grinding body (2), and there is a gap between the blowing ring body (3) and the grinding disc (1). The blowing ring body (3) is connected to the grinding body (2) through a full-circle supporting plate (3B) by welding.

7. The novel vertical mill blowing ring according to claim 1 is characterized in that: The outer surface of the outer arc plate (3A2) in the blowing ring body (3) is also fixedly connected to a plurality of support rods (3C), and the support rods (3C) are connected to the grinding body (2) by welding.

8. The novel vertical mill blowing ring according to claim 6 is characterized in that: The partition plate (3A3) is connected to the inner arc plate (3A1) and the outer arc plate (3A2) by welding, and the cover plate (3A4) is connected to the top of the inner arc plate (3A1) or the top of the partition plate (3A3) by welding; a plurality of blowing ring segments (3A) are connected by welding to form a full-circle blowing ring body (3); The inner ring of the full-circle support plate (3B) is connected to the bottom of the outer arc plate (3A2) in the blowing ring body (3) by welding.

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