Raw material mill structure for cement production

Abstract

The utility model discloses a raw material mill structure for cement production, which relates to the technical field of cement production, has the advantages that a grinding roller is moved out of a vertical mill when the grinding roller is overhauled and replaced, so that the overhauling and replacing operation is convenient, and adopts the technical scheme that the raw material mill structure comprises a shell and a millstone which is arranged in the shell and rotates through a transmission device, the device is characterized in that three communicating grooves are formed in the outer wall of the shell, the ends, close to the three communicating grooves, of the outer wall of the shell are horizontally and slidably connected with mounting plates used for sealing notches of the communicating grooves through moving parts, rotating shafts are arranged on the three mounting plates through adjusting parts, and the ends, away from the mounting plates, of the three rotating shafts are detachably connected with grinding rollers; and the three grinding rollers are positioned above the grinding disc in the shell and are in contact with the grinding disc.

Description

Technical Field

[0001] This utility model relates to the field of cement production technology, specifically to a raw material mill structure for cement production. Background Technology

[0002] The main raw material of cement is lime or calcium silicate. After hardening, it can resist the erosion of fresh water or salt water. As an important cementing material, it is widely used in civil engineering, water conservancy, national defense and other projects. Cement production requires the use of vertical mills to process the raw materials.

[0003] Vertical roller mills are ideal large-scale grinding equipment, widely used in industries such as cement, power, metallurgy, chemical, and non-metallic minerals. They integrate crushing, drying, grinding, grading, and conveying, offering high production efficiency and capable of grinding lumpy, granular, and powdery raw materials into the required powdered materials. A vertical roller mill mainly consists of a frame shell, transmission device, grinding disc, support base, three grinding rollers, and a separator. The transmission device drives the grinding disc to rotate. After the material enters the grinding disc, it is crushed under the action of the grinding disc and grinding rollers, and slides outward under the centrifugal force of the grinding disc. Hot air is then used to blow the crushed material upward. When the material rises to the separator area, it is separated. Material of the correct particle size is separated and sent out of the vertical roller mill, while unqualified material returns to the grinding disc for further crushing.

[0004] During the use of a vertical mill, the grinding rollers will experience some wear, so they need to be inspected and replaced regularly. However, in the current vertical mill, the grinding rollers need to be manually removed from the mill before inspection and replacement, which is time-consuming, labor-intensive, and complicated. Therefore, the applicant has developed a new technical solution to solve the above-mentioned technical problems in actual production. Utility Model Content

[0005] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a structure for a raw material mill used in cement production, which has the advantage of allowing the grinding rollers to be moved out of the vertical mill during maintenance and replacement, thereby facilitating maintenance and replacement operations.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This utility model provides a raw material mill structure for cement production, including an outer shell and a grinding disc that rotates within the outer shell via a transmission device. Three connecting slots are formed on the outer wall of the outer shell, and each of the three connecting slots is horizontally slidably connected to a mounting plate for closing the slot openings via a movable component. Each of the three mounting plates has a rotating shaft via an adjusting component, and grinding rollers are detachably connected to the ends of the three rotating shafts away from the mounting plates. The adjusting component is used to adjust the angle of the rotating shafts on the mounting plates. All three grinding rollers are located above the grinding disc within the outer shell and are in contact with the grinding disc.

[0008] By adopting the above technical solution, when the grinding roller needs to be repaired and replaced, the rotating shaft is adjusted to a horizontal state by adjusting the adjusting component, and then the mounting plate is moved away from the outer shell by the moving component until both the rotating shaft and the grinding roller are moved out of the outer shell from the connecting groove. At this time, it is convenient to repair and replace the grinding roller without manually removing the grinding roller from the outer shell. When the grinding roller is worn, the angle of the rotating shaft is adjusted by adjusting the adjusting component, which changes the angle of the grinding roller, thereby increasing the contact area between the grinding roller and the grinding disc, improving the grinding efficiency, and reducing the situation where the contact area between the grinding roller and the grinding disc is reduced due to grinding roller wear, thus affecting the grinding efficiency. It is simple and convenient to use.

[0009] Preferably, the adjusting component includes a rectangular groove formed at the center of one side of the mounting plate. The rectangular groove is vertically arranged, and a disc is rotatably connected between the left and right sides of the groove. The upper and lower sides of the groove are arc-shaped surfaces that fit against the disc. A rotating groove is formed on one side of the arc-shaped surface of the disc. The end of the rotating shaft away from the grinding roller is rotatably connected in the rotating groove. The mounting plate is provided with a rectangular frame located inside the outer shell, and the rectangular frame communicates with the rectangular groove. A frame-shaped rubber sealing strip is provided on the inner side of the rectangular frame. The inner side of the rubber sealing strip abuts against the disc. The mounting plate is provided with a pushing component for pushing the disc to rotate in the rectangular groove.

[0010] Preferably, the pushing member includes a push plate rotatably connected to one side of the disc, and the push plate is located outside the rectangular groove. A swing seat is hinged to one end of the mounting plate near the push plate, and the swing seat is located below the push plate. An electric cylinder is provided on the swing seat, and one end of the piston rod of the electric cylinder is fixedly connected to the push plate.

[0011] Preferably, the movable component includes a support plate disposed on the outer wall of the housing near one end of the connecting groove, and the support plate is horizontally located below the connecting groove. The support plate has a sliding groove along its length, and a slide block is horizontally slidably connected in the sliding groove. The mounting plate is disposed on the top of the slide block. A lead screw is rotatably connected between the opposite two sides of the sliding groove, and one end of the lead screw passes through the slide block and is threadedly connected to the slide block. The lead screw is disposed along the length of the sliding groove, and the support plate is provided with a motor for driving the lead screw to rotate.

[0012] Preferably, the mounting plate includes a sealing plate and an embedding plate. The sealing plate is disposed at the top of the slide block, and the embedding plate is disposed on the sealing plate and embedded in the communicating groove. The sealing plate has a sealing gasket on the side near the outer shell that abuts against the outer shell.

[0013] Preferably, the bottom end of the support plate is connected to the outer shell through an inclined connecting rod, an inverted U-shaped baffle is horizontally provided between the opposite sides of the slide groove, and the baffle is arranged along the length direction of the lead screw. The slide block is provided with a transition groove for one end of the baffle to pass through, and the lead screw is located inside the baffle.

[0014] The beneficial effects of this utility model are as follows: When the grinding roller needs to be repaired and replaced, the rotating shaft is adjusted to a horizontal state by adjusting the adjusting component, and then the mounting plate is moved away from the outer shell by the moving component until both the rotating shaft and the grinding roller are moved out of the outer shell from the connecting groove. At this time, it is convenient to repair and replace the grinding roller without manually removing the grinding roller from the outer shell. When the grinding roller is worn, the angle of the rotating shaft is adjusted by adjusting the adjusting component, which changes the angle of the grinding roller, thereby increasing the contact area between the grinding roller and the grinding disc, improving the grinding efficiency, and reducing the situation where the contact area between the grinding roller and the grinding disc is reduced due to the wear of the grinding roller, thus affecting the grinding efficiency. It is simple and convenient to use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0017] Figure 2 This is a schematic diagram illustrating the structure of the support plate in this embodiment;

[0018] Figure 3 This is a schematic diagram illustrating the structure of the rotating groove in this embodiment;

[0019] Figure 4 This is a schematic diagram illustrating the structure of the rectangular frame in this embodiment;

[0020] Figure 5 This is a schematic diagram illustrating the structure of the disk in this embodiment;

[0021] Figure 6 for Figure 3 Enlarged structural diagram of section A in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] In the diagram: 1. Outer shell; 2. Transmission device; 3. Grinding disc; 4. Connecting groove; 5. Mounting plate; 6. Rotating shaft; 7. Grinding roller; 8. Rectangular groove; 9. Disc; 10. Rotating groove; 12. Rectangular frame; 13. Rubber sealing strip; 14. Push plate; 15. Swing seat; 16. Electric cylinder; 17. Support plate; 18. Slide groove; 19. Slide seat; 20. Lead screw; 21. Motor; 22. Sealing plate; 23. Embedded plate; 24. Sealing gasket; 25. Connecting rod; 26. Baffle; 27. Transition groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] A raw material mill structure for cement production includes a shell 1 and a grinding disc 3 disposed inside the shell 1 and rotated by a transmission device 2. Figure 1 and Figure 2 and Figure 3 The outer wall of the outer casing 1 has three connecting slots 4, and the outer wall of the outer casing 1 near the three connecting slots 4 is horizontally slidably connected to the mounting plate 5 for closing the slot opening of the connecting slot 4 via a moving part. The three mounting plates 5 are provided with a rotating shaft 6 via an adjusting part, and the end of the three rotating shafts 6 away from the mounting plate 5 can be detachably connected to a grinding roller 7. The adjusting part is used to adjust the angle of the rotating shaft 6 on the mounting plate 5. The three grinding rollers 7 are all located above the grinding disc 3 inside the outer casing 1 and are all in contact with the grinding disc 3.

[0026] like Figure 1 and Figure 2 and Figure 3 When the grinding roller 7 needs maintenance and replacement, the rotating shaft 6 is adjusted to a horizontal position using the adjusting component. Then, the mounting plate 5 is moved away from the housing 1 by the moving component until both the rotating shaft 6 and the grinding roller 7 are moved out of the housing 1 from the connecting groove 4. At this point, it is convenient to maintain and replace the grinding roller 7 without manually removing it from the housing 1. When the grinding roller 7 is worn, the angle of the rotating shaft 6 is adjusted using the adjusting component. This changes the angle of the grinding roller 7, increasing the contact area between the grinding roller 7 and the grinding disc 3, improving grinding efficiency, and reducing the situation where the contact area between the grinding roller 7 and the grinding disc 3 is reduced due to wear of the grinding roller 7, thus affecting grinding efficiency. It is simple and convenient to use.

[0027] like Figure 3 and Figure 4 The adjusting component includes a rectangular groove 8 located at the center of one side of the mounting plate 5. The rectangular groove 8 is vertically arranged, and a disc 9 is rotatably connected between the left and right sides of the groove wall. The upper and lower sides of the groove wall of the rectangular groove 8 are arc-shaped surfaces that fit with the disc 9. A rotating groove 10 is provided on one side of the arc-shaped surface of the disc 9. The end of the rotating shaft 6 away from the grinding roller 7 is rotatably connected in the rotating groove 10. A rectangular frame 12 located inside the outer shell 1 is provided on the mounting plate 5, and the rectangular frame 12 is connected to the rectangular groove 8. A frame-shaped rubber sealing strip 13 is provided on the inner side of the rectangular frame 12. The inner side of the rubber sealing strip 13 abuts against the disc 9. A pushing component is provided on the mounting plate 5 for pushing the disc 9 to rotate in the rectangular groove 8.

[0028] like Figure 3 and Figure 4 When the angle of the rotating shaft 6 needs to be adjusted, simply push the disc 9 to rotate in the rectangular groove 8 through the pusher. At this time, the disc 9 will drive the rotating shaft 6 to rotate up or down through the rotating groove 10. The angle of the grinding roller 7 can then be adjusted. Through the cooperation between the rubber sealing strip 13 and the disc 9, the dust that is being ground inside the outer shell 1 can be reduced from floating or being blown out of the rectangular groove 8. The arc-shaped surfaces on the upper and lower sides of the rectangular groove 8 that are in contact with the disc 9 can further reduce the dust from floating or being blown out of the rectangular groove 8. It is simple and convenient to use.

[0029] like Figure 5 The pushing component includes a push plate 14 rotatably connected to one side of the disc 9, and the push plate 14 is located outside the rectangular groove 8. A swing seat 15 is hinged to one end of the mounting plate 5 near the push plate 14, and the swing seat 15 is located below the push plate 14. An electric cylinder 16 is provided on the swing seat 15, and one end of the piston rod of the electric cylinder 16 is fixedly connected to the push plate 14. The purpose of this arrangement is that when it is necessary to push the disc 9 to rotate in the rectangular groove 8, it is only necessary to open the electric cylinder 16. At this time, the piston rod of the electric cylinder 16 will drive the disc 9 to rotate in the rectangular groove 8 through the push plate 14, which is simple and convenient to use.

[0030] like Figure 2 and Figure 3 and Figure 6 The movable component includes a support plate 17 disposed on the outer wall of the housing 1 near one end of the connecting groove 4, and the support plate 17 is horizontally located below the connecting groove 4. A sliding groove 18 is provided on the support plate 17 along the length direction of the support plate 17, and a slide seat 19 is horizontally slidably connected in the sliding groove 18. A mounting plate 5 is disposed on the top of the slide seat 19. A lead screw 20 is rotatably connected between the opposite two side walls of the sliding groove 18, and one end of the lead screw 20 passes through the slide seat 19 and is threadedly connected to the slide seat 19. The lead screw 20 is disposed along the length direction of the sliding groove 18. A motor 21 for driving the lead screw 20 to rotate is provided on the support plate 17.

[0031] like Figure 2 and Figure 3 and Figure 6 When motor 21 is turned on, its rotating shaft drives lead screw 20 to rotate. Since one end of lead screw 20 passes through slide 19 and is threadedly connected to it, rotation of lead screw 20 drives slide 19 to move horizontally towards or away from housing 1 within slide groove 18. Mounting plate 5 then moves with slide 19. When slide 19 moves away from housing 1, mounting plate 5, rotating shaft 6, and grinding roller 7 move away from housing 1 along with slide 19 until rotating shaft 6 and grinding roller 7 are removed from housing 1 from connecting groove 4. This facilitates the inspection and replacement of grinding roller 7 without requiring manual removal from housing 1, making it simple and convenient to use.

[0032] like Figure 3 The mounting plate 5 includes a sealing plate 22 and an embedded plate 23. The sealing plate 22 is located at the top of the slide 19, and the embedded plate 23 is located on the sealing plate 22 and embedded in the connecting groove 4. The sealing plate 22 has a sealing gasket 24 that abuts against the outer shell 1 on the side close to the outer shell 1. The purpose of this setting is to reduce the situation where dust inside the outer shell 1 escapes or is blown out from the gap between the sealing plate 22 and the outer shell 1 through the sealing gasket 24 on the sealing plate 22, and to reduce the situation where dust inside the outer shell 1 accumulates in the connecting groove 4 through the embedded plate 23. It is simple and convenient to use.

[0033] like Figure 3 and Figure 5 and Figure 6 The bottom end of the support plate 17 is connected to the outer shell 1 via an inclined connecting rod 25. An inverted U-shaped baffle 26 is horizontally provided between the opposite sides of the slide groove 18, and the baffle 26 is arranged along the length direction of the lead screw 20. A transition groove 27 is provided on the slide block 19 for one end of the baffle 26 to pass through. The lead screw 20 is located inside the baffle 26. The purpose of this arrangement is to reduce the downward tilt of the end of the support plate 17 away from the outer shell 1 due to gravity by the connecting rod 25, and to reduce the occurrence of external dust or impurities falling on the lead screw 20 and affecting the operation of the lead screw 20 by the baffle 26.

[0034] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A raw material mill structure for cement production, comprising a shell (1) and a grinding disc (3) disposed within the shell (1) and rotating via a transmission device (2), characterized in that, The outer wall of the outer shell (1) is provided with three connecting slots (4), and the outer wall of the outer shell (1) near the three connecting slots (4) is connected to a mounting plate (5) for closing the slot opening of the connecting slot (4) by a moving part. The three mounting plates (5) are provided with a rotating shaft (6) by an adjusting part, and the three rotating shafts (6) away from the mounting plate (5) can be detachably connected to a grinding roller (7). The adjusting part is used to adjust the angle of the rotating shaft (6) on the mounting plate (5). The three grinding rollers (7) are all located above the grinding disc (3) inside the outer shell (1) and are in contact with the grinding disc (3).

2. The structure of a raw material mill for cement production as described in claim 1, characterized in that, The adjusting component includes a rectangular groove (8) located at the center of one side of the mounting plate (5). The rectangular groove (8) is vertically arranged, and a disc (9) is rotatably connected between the left and right sides of the groove wall. The upper and lower sides of the groove wall are arc-shaped surfaces that fit with the disc (9). A rotating groove (10) is provided on one side of the arc-shaped surface of the disc (9). The end of the rotating shaft (6) away from the grinding roller (7) is rotatably connected in the rotating groove (10). A rectangular frame (12) located inside the outer shell (1) is provided on the mounting plate (5), and the rectangular frame (12) is connected to the rectangular groove (8). A frame-shaped rubber sealing strip (13) is provided on the inner side of the rectangular frame (12). The inner side of the rubber sealing strip (13) abuts against the disc (9). A pushing component is provided on the mounting plate (5) for pushing the disc (9) to rotate in the rectangular groove (8).

3. The structure of a raw material mill for cement production as described in claim 2, characterized in that, The pusher includes a push plate (14) rotatably connected to one side of the disc (9), and the push plate (14) is located outside the rectangular groove (8). The mounting plate (5) is hinged to a swing seat (15) at one end near the push plate (14), and the swing seat (15) is located below the push plate (14). The swing seat (15) is provided with an electric cylinder (16), and one end of the piston rod of the electric cylinder (16) is fixedly connected to the push plate (14).

4. The structure of a raw material mill for cement production as described in claim 2, characterized in that, The movable component includes a support plate (17) disposed on the outer wall of the outer casing (1) near one end of the connecting groove (4), and the support plate (17) is horizontally located below the connecting groove (4). A sliding groove (18) is provided on the support plate (17) along the length direction of the support plate (17), and a sliding seat (19) is horizontally slidably connected in the sliding groove (18). The mounting plate (5) is disposed at the top of the sliding seat (19). A lead screw (20) is rotatably connected between the opposite two sides of the groove wall of the sliding groove (18), and one end of the lead screw (20) passes through the sliding seat (19) and is threadedly connected to the sliding seat (19). The lead screw (20) is disposed along the length direction of the sliding groove (18), and a motor (21) for driving the lead screw (20) to rotate is provided on the support plate (17).

5. The structure of a raw material mill for cement production as described in claim 4, characterized in that, The mounting plate (5) includes a sealing plate (22) and an embedded plate (23). The sealing plate (22) is located at the top of the slide (19). The embedded plate (23) is located on the sealing plate (22) and embedded in the connecting groove (4). The sealing plate (22) has a sealing gasket (24) that abuts against the outer shell (1) on the side near the outer shell (1).

6. The structure of a raw meal mill for cement production as described in claim 4, characterized in that, The bottom end of the support plate (17) is connected to the outer shell (1) by an inclined connecting rod (25). An inverted U-shaped baffle (26) is horizontally provided between the opposite sides of the slide groove (18), and the baffle (26) is arranged along the length direction of the lead screw (20). A transition groove (27) is provided on the slide block (19) for one end of the baffle (26) to pass through. The lead screw (20) is located inside the baffle (26).

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