Grinding disc synergistic structure

Abstract

The utility model relates to the technical field of vertical mills, and discloses a millstone synergistic structure which comprises a millstone and a baffle, the baffle is installed at the edge of the millstone, a through groove is formed in the edge of the millstone, the through groove is an annular through groove, the through groove and the baffle form a groove, the bottom of the groove is located above the bottom of the baffle, and a synergistic layer is arranged on the surface of the through groove. According to the scheme, the grooves are reserved between the millstone and the baffles, materials on the millstone can enter the grooves to be stacked, abrasion of the R corners of the grinding rollers is blocked after the materials are stacked, impact of large-particle-size materials on the baffles can be reduced, and abrasion of the baffles is reduced; meanwhile, the groove enables the center of the grinding disc and the position of the baffle to be changed, the groove is used for changing the space for installing the grinding roller, at the moment, the R angle of the grinding roller can be changed from 55 degrees to 50 degrees, the pressure of the grinding roller at the angle is maximum, the grinding effect is better, and the damage condition of the grinding head is not changed.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical mills, in particular to a grinding disc efficiency enhancement structure. Background Art

[0002] The vertical mill is mainly composed of a transmission device, a hydraulic device, a powder selector, a grinding disc, a grinding roller, etc. Its main working parts are the grinding disc and the grinding roller that rolls relatively on the grinding disc. The slag falls into the center of the grinding disc through the feed port to form a conical material pile. With the rotation of the grinding disc and the action of centrifugal force, the material pile gradually spreads to the periphery of the grinding disc and enters the grinding area of ​​the grinding disc and the grinding roller. The finished or semi-finished fine powder after grinding continues to move along the edge of the grinding disc. Due to the baffle set at the edge of the grinding disc, a slope with a high outside and a low inside will be formed at the edge of the grinding disc. The finished or semi-finished fine powder follows the slope and enters the outlet of the blowing ring. Under the action of high-speed hot air, part of the fine powder goes up into the separation area, while the other part becomes the return material. Due to the centrifugal force of the grinding disc, the material will impact the edge of the grinding disc, and part of the material will return to the grinding area of ​​the grinding disc and the grinding roller under the blocking action of the edge of the grinding disc. Due to the impact of the material, the baffle at the edge of the grinding disc will wear faster, which will affect the grinding effect of the material. Utility Model Content

[0003] The utility model aims to provide a grinding disc efficiency enhancement structure to solve the problem that the edge of the grinding disc is worn out quickly due to the action of materials, which affects the grinding effect of materials.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a grinding disc efficiency enhancement structure, comprising a grinding disc and a baffle, wherein the baffle is installed at the edge of the grinding disc, a through groove is provided at the edge of the grinding disc, the through groove is an annular through groove, the through groove and the baffle form a groove, the bottom of the groove is located above the bottom of the baffle, and the surface of the through groove is provided with an efficiency enhancement layer.

[0005] Preferably, the diameter of the grinding disc gradually increases from top to bottom.

[0006] Preferably, the inner side of the top of the baffle is arc-shaped. Setting the inner side of the baffle as an arc-shaped surface is conducive to the discharge of materials from the top and reduces the wear of the baffle by the materials.

[0007] Preferably, the cross section of the through groove is arc-shaped. This arrangement allows for a smooth transition of the inner side of the through groove, making it easier to clean the through groove.

[0008] Preferably, a protective plate is provided on the inner side of the baffle, and the protective plate is fixedly connected to the baffle. The protective plate can protect the baffle and reduce the impact and wear of the material on the baffle.

[0009] Preferably, the top of the protective plate is located above the top of the baffle.

[0010] Preferably, the bottom of the groove is located below the middle of the grinding disc.

[0011] Preferably, the width of the groove is 19-21 mm.

[0012] Preferably, the width of the groove is 20 mm.

[0013] The principles and advantages of this solution are: this solution reserves a groove between the grinding disc and the baffle, and the material on the grinding disc will enter the groove for stacking. After the material is stacked, it blocks the baffle, which can reduce the impact of large-size materials on the baffle and reduce the wear of the baffle; at the same time, this groove changes the center of the grinding disc and the position of the baffle, and the space for installing the grinding roller changes. At this time, the R angle of the grinding roller can be changed from 55° to 50°, and the contact point between the grinding roller and the grinding disc is at the R angle of the large end of the grinding roller. Reducing the R angle means reducing the contact area between the grinding roller and the grinding disc. Under the same force, the material is subjected to greater pressure and is therefore easier to crush. At this angle, the pressure of the grinding roller is the largest, the grinding effect is better, and the damage to the grinding head is not changed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0015] Figure 2 It is a cross-sectional schematic diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0016] The following is further described in detail through specific implementation methods:

[0017] The reference numerals in the drawings of the specification include: grinding disc 1, baffle 2, through groove 3, grinding roller 4.

[0018] Example:

[0019] A grinding disc synergistic structure, as attached Figure 1 and attached Figure 2 As shown, it includes: a grinding disc 1 and a baffle 2, wherein the baffle 2 is installed at the edge of the grinding disc 1, wherein the diameter of the grinding disc 1 gradually increases from top to bottom.

[0020] A through groove 3 is provided at the edge of the grinding disc 1. The through groove 3 is an annular through groove 3. The through groove 3 and the baffle 2 form a groove, and the bottom of the groove is located above the bottom of the baffle 2. A groove is reserved between the grinding disc 1 and the baffle 2, so that the center of the grinding disc 1 and the position of the baffle 2 are changed, and the space for installing the grinding roller 4 is changed. At this time, the R angle of the grinding roller 4 can be changed from 55° to 50°. At this angle, the pressure of the grinding roller 4 is the largest, the grinding effect is better, and the damage to the grinding head is not changed; at the same time, when the grinding disc 1 is working and rotating, the material on the grinding disc 1 will enter the groove for stacking. After the material is stacked, it blocks the baffle 2, which can reduce the impact of large-size materials on the baffle 2 and reduce the wear of the baffle 2. In this embodiment, the baffle 2 is a material retaining ring at the edge of the grinding disc.

[0021] The bottom of the groove is located below the center of the grinding disc 1, and the width of the groove is 19 to 21 mm. In this embodiment, the width of the groove is preferably 20 mm.

[0022] The surface of the through groove 3 is provided with a synergistic layer, specifically, a synergistic material (specifically a wear-resistant material in this embodiment) is coated on the surface of the through groove 3 to form a synergistic layer, and the wear-resistant material is generally a variety of materials such as aluminum oxide, silicon carbide, high manganese steel, and wear-resistant alloy steel. The cross section of the through groove 3 is an arc. Under this setting, the inner side of the through groove 3 has a smooth transition, which is convenient for cleaning the through groove 3.

[0023] The device further comprises a sealing ring, which is located between the grinding disc 1 and the baffle 2. The sealing ring is provided to ensure the sealing between the grinding disc 1 and the baffle 2, and the sealing ring can be used to protect the baffle 2. The sealing ring is specifically a rubber sealing ring.

[0024] The top of the sealing ring is located above the bottom of the groove. The sealing ring can be fully utilized to protect the baffle plate 2, while preventing the outer edge of the grinding disc 1 from directly forming a smaller groove with the baffle plate 2, increasing the wear of the baffle plate 2 and avoiding increasing the difficulty of cleaning.

[0025] The inner side of the top of the baffle plate 2 is arc-shaped. The inner side of the baffle plate 2 is arranged as an arc surface, which is conducive to the discharge of materials from the top thereof and reduces the wear of the baffle plate 2 by the materials.

[0026] A protective plate is provided on the inner side of the baffle 2, and the protective plate is fixedly connected to the baffle 2, and can be connected specifically by welding. The protective plate can protect the baffle 2 and reduce the impact and wear of the material on the baffle 2. The top of the protective plate is located above the top of the baffle 2.

[0027] This solution reserves a groove between the grinding disc and the baffle. The material on the grinding disc will enter the groove and be stacked. After the material is stacked, it blocks the baffle, which can reduce the impact of large-size materials on the baffle and reduce the wear of the baffle. At the same time, the groove changes the center of the grinding disc and the position of the baffle, which is used to change the space for installing the grinding roller. At this time, the R angle of the grinding roller can be changed from 55° to 50°. The contact point between the grinding roller and the grinding disc is at the R angle of the large end of the grinding roller. Reducing the R angle means reducing the contact area between the grinding roller and the grinding disc. Under the same force, the material is subjected to greater pressure and is therefore easier to crush. At this angle, the pressure of the grinding roller is the largest, the grinding effect is better, and the damage to the grinding head is not changed.

[0028] The above are only embodiments of the present utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, several variations and improvements can be made without departing from the technical solution of the present utility model. In the present utility model, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. The scope of protection claimed in this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. The grinding disc enhancement structure includes a grinding disc and a baffle, and is characterized by: The baffle is installed at the edge of the grinding disc, and a through groove is provided at the edge of the grinding disc. The through groove is an annular through groove. The through groove and the baffle form a groove. The bottom of the groove is located above the bottom of the baffle, and an efficiency-enhancing layer is provided on the surface of the through groove.

2. The grinding disc synergistic structure according to claim 1 is characterized in that: The diameter of the grinding disc increases gradually from top to bottom.

3. The grinding disc synergistic structure according to claim 1 is characterized in that: The inner side of the top of the baffle is arc-shaped.

4. The grinding disc synergistic structure according to claim 1, characterized in that: The cross section of the through groove is arc-shaped.

5. The grinding disc synergistic structure according to claim 1 is characterized in that: A protective plate is provided on the inner side of the baffle, and the protective plate is fixedly connected to the baffle.

6. The grinding disc efficiency enhancement structure according to claim 5 is characterized in that: The top of the protection plate is located above the top of the baffle plate.

7. The grinding disc synergistic structure according to claim 1, characterized in that: The bottom of the groove is located below the middle of the grinding disc.

8. The grinding disc efficiency enhancement structure according to claim 1 is characterized in that: The width of the groove is 19-21 mm.

9. The grinding disc synergistic structure according to claim 8, characterized in that: The width of the groove is 20 mm.

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