Efficient vertical mill powder concentrator

Abstract

The utility model relates to the technical field of cement production equipment, in particular to an efficient vertical mill powder concentrator. The efficient vertical mill powder concentrator solves the technical problem that in the prior art, a vertical mill powder concentrator is low in grinding efficiency. An efficient vertical mill powder selecting machine comprises a shell, a grinding assembly and a powder selecting assembly are arranged in the shell, and the powder selecting assembly is located above the grinding assembly; by arranging the scraping plate, materials on the grinding disc can be scraped by the scraping plate, the scraped materials enter the discharging groove through the scraping plate, and the discharging groove is higher than the grinding disc, so that the materials can be raised, the materials can be sorted by the powder sorting assembly conveniently, and the positions of the materials relative to the grinding disc are changed after the materials pass through the scraping plate. Therefore, materials can be more easily ground by the grinding head, and the grinding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cement production equipment, in particular to a high-efficiency vertical mill powder separator. Background Art

[0002] The vertical mill is a large-scale grinding equipment widely used in industries such as cement, electricity, metallurgy, chemicals, and non-metallic minerals. It integrates crushing, drying, grinding, and graded conveying, offering high production efficiency and capable of grinding bulk, granular, and powdered raw materials into the desired powdered material. Its operating principle is that an electric motor drives the grinding disc through a reducer, causing the material to fall from the feed opening onto the center of the grinding disc. Centrifugal force moves the material toward the edge of the grinding disc, where it is crushed by the grinding rollers. The crushed material overflows from the edge of the grinding disc and is carried by the high-speed upward airflow from the impeller into the high-efficiency powder concentrator at the top of the vertical mill. Fine powder then flows out of the mill with the airflow and is collected by the system's dust collector, becoming the final product.

[0003] The structure of the vertical mill powder separator in the prior art is unreasonable. The position of the material on the grinding disc is fixed during the grinding process, and the powder accumulates around the large particles, resulting in the large particles being unable to be ground and reducing the grinding efficiency.

[0004] Therefore, the vertical mill powder separator in the prior art has the technical problem of low grinding efficiency. Utility Model Content

[0005] The utility model provides a high-efficiency vertical mill powder classifier, which solves the technical problem of low grinding efficiency of the vertical mill powder classifier in the prior art.

[0006] Some implementation plans adopted to solve the above technical problems include:

[0007] A high-efficiency vertical mill powder separator comprises a housing, wherein a grinding assembly and a powder separator are arranged in the housing, and the powder separator is located above the grinding assembly;

[0008] The grinding assembly includes a grinding disc driven by a driver, and the grinding assembly also includes a grinding head, and the driver drives the grinding disc to rotate relative to the grinding head;

[0009] There are at least two grinding heads, and the grinding heads are evenly arranged along the circumference of the grinding disc;

[0010] A scraper plate for scraping off the material on the grinding disc is arranged between two adjacent grinding heads. The scraper plate is arranged at an angle, and each scraper plate is provided with a discharge groove, and the discharge groove passes through the scraper plate.

[0011] Preferably, the scraper plates and the grinding heads are arranged alternately, and the scraper plates are fixed to the shell.

[0012] Preferably, the grinding disc is provided with a grinding track, the grinding track is recessed into the grinding disc, and a portion of the grinding head is located in the grinding track, and a portion of the scraper plate is located in the grinding head.

[0013] Preferably, the grinding track includes a bottom wall, and the scraper plate is provided with a wear-resistant layer in contact with the bottom wall.

[0014] Preferably, a notch is provided at one end of the scraper plate that contacts the bottom wall for allowing materials to pass through, and the notch passes through the scraper plate.

[0015] Preferably, the scraper plate is fixed to the housing by screws.

[0016] Preferably, the scraper plate is slidably connected to the shell, and an elastic member is provided between the shell and the scraper plate to enable the scraper plate to contact the bottom wall.

[0017] Preferably, the elastic member is a spring, one end of the spring is fixed to the housing, and the other end of the elastic member is fixed to the scraper plate.

[0018] Preferably, a filter is provided between the powder selection assembly and the grinding assembly.

[0019] Preferably, the filter is hemispherical, the tip of the filter faces upward, and the center of the filter is located on the axis of the grinding disc. The grinding disc is provided with a guide body for guiding the material, the guide body is hemispherical, and the center of the guide body is located on the axis of the grinding disc.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. By setting a scraper plate, the scraper plate can scrape the material on the grinding disc, and the scraped material enters the discharge chute through the scraper plate. The height of the discharge chute is higher than the height of the grinding disc, so that the material can be lifted, which is conducive to the material being sorted by the powder selection component. In addition, the position of the material relative to the grinding disc changes after passing through the scraper plate, which makes it easier for the material to be ground by the grinding head, thereby improving the grinding efficiency.

[0022] 2. The scraper plate is set at an angle, and the grinding disc drives the material to rotate relative to the scraper plate. During the rotation, the material interferes with the scraper plate, so that the material behind pushes the material in front into the scraper plate. The material on the scraper plate then enters the grinding disc through the discharge chute, which can effectively loosen the material on the grinding disc and improve the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] For the purpose of explanation, several embodiments of the present invention are described in the following drawings. The following drawings are incorporated into this document and constitute a part of the detailed description. In some cases, well-known structures and components are shown in block diagram form to avoid obscuring the concepts of the present invention.

[0024] Figure 1 It is a schematic diagram of the internal structure of the utility model.

[0025] Figure 2 It is a schematic diagram of the present utility model.

[0026] Figure 3 for Figure 2 Schematic diagram after omitting the shell.

[0027] Figure 4 for Figure 3 Schematic diagram after omitting the powder selection component.

[0028] Figure 5 Schematic diagram of the scraper.

[0029] In the picture:

[0030] 1. Housing, 11. Filter.

[0031] 2. Grinding assembly, 21. Grinding disc, 211. Grinding path, 212. Guide body, 22. Grinding head, 23. Drive, 24. Scraper, 25. Discharge chute, 26. Notch.

[0032] 3. Powder selection component. DETAILED DESCRIPTION

[0033] The specific embodiments shown below are intended to serve as descriptions of various configurations of the subject technology of the present invention and are not intended to represent the only configuration in which the subject technology of the present invention can be practiced. The specific embodiments include specific details intended to provide a thorough understanding of the subject technology of the present invention. However, it will be clear and apparent to those skilled in the art that the subject technology of the present invention is not limited to the specific details shown herein and can be practiced without these specific details.

[0034] It will be understood that, herein, relational terms such as “first” and “second” are intended to distinguish one entity or operation from another entity or operation, and are not intended to express or imply any actual relationship or order between these entities or operations.

[0035] The terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0036] Reference Figures 1 to 5 As shown, a high-efficiency vertical mill powder separator includes a housing 1, wherein a grinding assembly 2 and a powder selection assembly 3 are provided in the housing 1, and the powder selection assembly 3 is located above the grinding assembly 2;

[0037] The grinding assembly 2 includes a grinding disc 21, which is driven by a driver 23. The grinding assembly 2 also includes a grinding head 22, which drives the grinding disc 21 to rotate relative to the grinding head 22.

[0038] There are at least two grinding heads 22, and the grinding heads 22 are evenly arranged along the circumference of the grinding disc 21;

[0039] A scraper plate 24 for scraping off the material on the grinding disc 21 is provided between two adjacent grinding heads 22 . The scraper plate 24 is provided at an angle, and each scraper plate 24 is provided with a discharge groove 25 , which passes through the scraper plate 24 .

[0040] The driver 23 may be a motor, which may be fixed to the housing 1 by screws. The grinding disc 21 may be directly fixed to the output shaft of the motor, or the motor may drive the grinding disc 21 to rotate via a transmission mechanism.

[0041] In some embodiments, the scraper plates 24 and the grinding heads 22 are alternately arranged, and the scraper plates 24 are fixed to the housing 1 .

[0042] The grinding disc 21 is provided with a grinding track 211 , which is recessed into the grinding disc 21 . A portion of the grinding head 22 is located in the grinding track 211 , and a portion of the scraper plate 24 is located in the grinding head 22 .

[0043] The grinding track 211 includes a bottom wall, and the scraper plate 24 is provided with a wear-resistant layer in contact with the bottom wall.

[0044] The grinding channel 211 further includes side walls. A rounded corner is provided between the bottom wall and the side walls of the grinding channel 211 , that is, there are no sharp edges in the grinding channel 211 to prevent materials from being retained in the grinding channel 211 .

[0045] Reference Figures 1 to 5As shown, in some embodiments, a notch 26 for allowing materials to pass through is provided at one end of the scraper plate 24 that contacts the bottom wall, and the notch 26 passes through the scraper plate 24 .

[0046] The setting of the gap 26 allows some materials to re-enter the grinding disc 21 without passing through the discharge chute 25. The setting of the gap 26 can prevent the materials from being retained in front of the scraper plate 24, so that the materials can be evenly distributed in the grinding channel 211, which is beneficial to the grinding of the materials.

[0047] In some embodiments, the scraper plate 24 is fixed to the housing 1 by screws.

[0048] In some embodiments, the scraper plate 24 is slidably connected to the housing 1 , and an elastic member is provided between the housing 1 and the scraper plate 24 to enable the scraper plate 24 to contact the bottom wall.

[0049] The elastic member is a spring, one end of the spring is fixed to the housing 1 , and the other end of the elastic member is fixed to the scraper plate 24 .

[0050] There should be a certain pre-pressure between the scraper plate 24 and the grinding track 211 so that the scraper plate 24 can scrape the material in the grinding track 211 more effectively. Therefore, by setting a spring, a reasonable pre-pressure can be provided between the scraper plate 24 and the grinding track 211 to prevent the scraper plate 24 or the grinding disc 21 from being worn out too quickly.

[0051] The housing 1 may be provided with a guide rail, and the scraper plate 24 may be provided with a slide groove that cooperates with the guide rail. The guide rail and the housing 1 may be an integrated structure.

[0052] Reference Figures 1 to 5 As shown, in some embodiments, a filter 11 is provided between the powder selection component 3 and the grinding component 2 .

[0053] The filter 11 is hemispherical, with the tip of the filter 11 facing upward, and the center of the filter 11 is located on the axis of the grinding disc 21. The grinding disc 21 is provided with a guide body 212 for guiding the material. The guide body 212 is hemispherical, and the center of the guide body 212 is located on the axis of the grinding disc 21.

[0054] The filter 11 can be fixed to the housing 1 by screws.

[0055] The guide body 212 is used to guide the material left after the powder selection component 3 is selected into the grinding channel 211 again, so that the material can be effectively re-ground to prevent material waste.

[0056] In some embodiments, the scraper plate 24 is mainly used to loosen the material in the grinding channel 211, that is, the material in the grinding channel 211 will be compacted in the grinding channel 211 by the grinding head 22 after being ground by the grinding head 22. Since the material in the grinding channel 211 is compacted, it is not conducive to the powder selection component 3 to select powder. Moreover, after the material is compacted in the grinding channel 211, the subsequent grinding head 22 cannot effectively grind the material.

[0057] The grinding disc 21 drives the material to move relative to the scraper plate 24. Since the scraper plate 24 is set at an angle, the material will be pushed toward the scraper plate 24, thereby effectively loosening the material and improving the grinding efficiency of the grinding component 2. Moreover, after the material is loosened, it is beneficial to the powder selection of the powder selection component 3.

[0058] The above describes the technical solution and corresponding details of the subject matter of the present invention. It can be understood that the above description is only some implementation plans of the technical solution of the subject matter of the present invention, and some details may be omitted during its specific implementation.

[0059] In addition, in some embodiments of the above utility model, multiple embodiments may be implemented in combination. Due to space limitations, various combination schemes are not listed one by one. Those skilled in the art can freely combine and implement the above embodiments as needed in specific implementation to obtain a better application experience.

[0060] When implementing the technical solution of the present invention, those skilled in the art may obtain other detailed configurations or drawings based on the technical solution of the present invention and the drawings. Obviously, these details still fall within the scope covered by the technical solution of the present invention without departing from the technical solution of the present invention.

Claims

1. A high-efficiency vertical mill powder separator, characterized by: The invention comprises a shell (1), wherein a grinding assembly (2) and a powder selection assembly (3) are arranged in the shell (1), and the powder selection assembly (3) is located above the grinding assembly (2); wherein the grinding assembly (2) comprises a grinding disc (21), and the grinding disc (21) is driven by a driver (23); the grinding assembly (2) further comprises a grinding head (22), and the driver (23) drives the grinding disc (21) to rotate relative to the grinding head (22); there are at least two grinding heads (22), and the grinding heads (22) are evenly arranged along the circumferential direction of the grinding disc (21); a scraper plate (24) for scraping off the material on the grinding disc (21) is arranged between two adjacent grinding heads (22), and the scraper plate (24) is inclined, and the scraper plate (24) is evenly distributed with a discharge groove (25), and the discharge groove (25) passes through the scraper plate (24).

2. The high-efficiency vertical mill powder separator according to claim 1, characterized in that: The scraper plates (24) and the grinding heads (22) are arranged alternately, and the scraper plates (24) are fixed to the housing (1).

3. The high-efficiency vertical mill powder separator according to claim 2, characterized in that: The grinding disc (21) is provided with a grinding track (211), the grinding track (211) is recessed into the grinding disc (21), a portion of the grinding head (22) is located in the grinding track (211), and a portion of the scraper plate (24) is located in the grinding head (22).

4. The high-efficiency vertical mill powder separator according to claim 3, characterized in that: The grinding track (211) comprises a bottom wall, and the scraper plate (24) is provided with a wear-resistant layer in contact with the bottom wall.

5. The high-efficiency vertical mill powder separator according to claim 4, characterized in that: A notch (26) for allowing materials to pass through is provided at one end of the scraper plate (24) that contacts the bottom wall, and the notch (26) passes through the scraper plate (24).

6. The high-efficiency vertical mill powder separator according to claim 5, characterized in that: The scraper plate (24) is fixed to the housing (1) by screws.

7. The high-efficiency vertical mill powder separator according to claim 5, characterized in that: The scraper plate (24) is slidably connected to the housing (1), and an elastic member is provided between the housing (1) and the scraper plate (24) to enable the scraper plate (24) to contact the bottom wall.

8. The high-efficiency vertical mill powder separator according to claim 7, characterized in that: The elastic member is a spring, one end of the spring is fixed to the housing (1), and the other end of the elastic member is fixed to the scraper plate (24).

9. The high-efficiency vertical mill powder separator according to claim 1, characterized in that: A filter (11) is provided between the powder selection component (3) and the grinding component (2).

10. The high-efficiency vertical mill powder separator according to claim 9, characterized in that: The filter (11) is hemispherical, the tip of the filter (11) faces upward, and the center of the filter (11) is located on the axis of the grinding disc (21). The grinding disc (21) is provided with a guide body (212) for guiding materials, and the guide body (212) is hemispherical, and the center of the guide body (212) is located on the axis of the grinding disc (21).

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