Anti-blocking grate plate for cement mill
By designing anti-clogging mechanisms and connecting structures on the cement grinding grate, the problem of slot clogging was solved, enabling automated processing and rapid maintenance, and improving the efficiency and convenience of cement mill operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JIN YUAN CEMENT
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-10
AI Technical Summary
The holes and slots on the cement grinding grate are easily clogged by large particles, resulting in poor ventilation and material discharge, which affects normal use.
An anti-clogging grate was designed, including a middle ring, a frame and a grate plate. The grate plate has a through groove, and a rotating rod and an anti-clogging mechanism are installed in the through groove. The conical protrusion of the rotating rod and the gear meshing structure automatically handle the clogging material, and the grate plate can be quickly installed and disassembled through a connecting mechanism.
It has achieved automated handling of clogged materials, reduced material handling costs, and improved the efficiency and ease of maintenance of the equipment.
Smart Images
Figure CN224475103U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cement production technology, and more specifically, to an anti-clogging grate for cement mills. Background Technology
[0002] Cement mills are key equipment for further pulverizing materials after they have been crushed. They are widely used in the production of cement, silicate products, new building materials, refractory materials, fertilizers and other industries. They are used for dry or wet grinding of various ores and other grindable materials. Cement mills are characterized by strong adaptability to materials, continuous production, large crushing ratio, and easy speed adjustment to achieve the desired fineness of the ground products.
[0003] The cement grinding grate is the inner lining plate of the cement mill. It is located inside the cement mill and rotates with the inner wall of the cement mill to screen the material. However, the holes and grooves on the grate are easily blocked by large particles, which causes poor ventilation and material discharge, requiring the machine to be stopped for manual cleaning, affecting normal use. Therefore, based on the above problems, it is necessary to solve them.
[0004] Therefore, we have made improvements and proposed an anti-clogging grate for cement mills. Utility Model Content
[0005] The purpose of this invention is to solve the problem that the holes and grooves on the current grate plate are easily blocked by large particles of material.
[0006] To achieve the above-mentioned objectives and improve the above-mentioned problems, this utility model provides an anti-clogging grate for a cement mill, including an intermediate ring, a frame fixedly connected to the surface of the intermediate ring, and grate plates arranged circumferentially between the frame and the intermediate ring. A through groove is formed on the surface of the grate plate, a connecting mechanism is provided between the grate plate, the frame, and the intermediate ring, and an installation groove is formed inside the grate plate, with an anti-clogging mechanism provided inside the installation groove.
[0007] The anti-clogging mechanism includes a rotating rod whose surface is rotatably connected to the inner wall of the through groove. Two rotating rods are provided in each through groove. The surface of the rotating rod may be provided with a conical protrusion. One end of the rotating rod extends into the mounting groove. The two ends of the rotating rods located inside the mounting groove are fixedly connected to a first gear. The inner wall of the mounting groove is rotatably connected to two meshing third gears. The two third gears are located between the two first gears and are meshed with the two first gears respectively.
[0008] As a preferred technical solution of this application, a rotating shaft is provided inside the mounting groove. The rotating shaft is coaxially connected to a third gear. A second gear is fixedly connected to the surface of the rotating shaft. A sliding plate is slidably connected to the inner wall of the mounting groove. A rack arranged at equal intervals is fixedly connected to the surface of the sliding plate. The surface of the rack meshes with the surface of the second gear.
[0009] As a preferred technical solution of this application, counterweights are fixedly connected to both ends of the slide plate, and the surface of the counterweights is slidably connected to the inner wall of the mounting groove.
[0010] As a preferred technical solution of this application, the connecting mechanism includes a fitting plate fixedly connected to the surface of the grate plate, a fitting groove is provided on the inner wall of the frame, the fitting plate is adapted to the fitting groove, a slot is provided on the surface of the fitting plate, and an arc plate is slidably connected inside the frame, both ends of the arc plate are inclined surfaces, and the arc plate can be inserted into the slot.
[0011] As a preferred technical solution of this application, a spring is fixedly connected to the surface of the arc-shaped plate, and the end of the spring away from the arc-shaped plate is fixedly connected to the inside of the frame.
[0012] As a preferred technical solution of this application, the intermediate ring is internally threaded with an internal threaded sleeve, one end of which is tapered, and the frame is internally slidably connected with a movable plate, which contacts the surface of the internal threaded sleeve.
[0013] As a preferred technical solution of this application, an insert plate is fixedly connected to the side of the grate plate near the middle ring, and the surface of the insert plate slides against the interior of the middle ring.
[0014] As a preferred technical solution of this application, an operating handle 10 is fixedly connected to the surface of the internal threaded sleeve 9.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] In the scheme of this application:
[0017] 1. By setting up an anti-clogging mechanism, the blockage material in the channel is treated, which solves the problem that the material is easily blocked in the channel and affects the material filtration in the existing technology. At the same time, the power of the grate plate rotation is used to automatically process the material, which reduces the material processing cost and improves the use effect of the device.
[0018] 2. The connection mechanism enables quick connection between the grate, the middle ring, and the frame, facilitating maintenance of the grate and improving the effectiveness of the device. Attached Figure Description
[0019] Figure 1A schematic diagram of the anti-clogging grate for a cement mill provided in this application;
[0020] Figure 2 The anti-clogging grate for cement mills provided in this application Figure 1 Enlarged structural diagram at point A in the middle;
[0021] Figure 3 This is a structural schematic diagram of the side of the middle ring in the anti-clogging grate for a cement mill provided in this application;
[0022] Figure 4 A schematic diagram of the internal structure of the frame of the anti-clogging grate for a cement mill provided in this application;
[0023] Figure 5 The anti-clogging grate for cement mills provided in this application Figure 4 Enlarged structural diagram at point B;
[0024] Figure 6 This is a schematic diagram of the internal structure of the mounting groove in the anti-clogging grate for a cement mill provided in this application;
[0025] Figure 7 This is a schematic diagram of the internal structure of the frame of the anti-clogging grate for a cement mill provided in this application.
[0026] The image shows:
[0027] 1. Frame; 2. Spring; 3. Intermediate ring; 4. Grate; 5. Through groove; 6. Rotating rod; 7. Fitting groove; 8. Fitting plate; 9. Internal threaded sleeve; 10. Operating handle; 11. Slot; 12. Insert plate; 13. Movable plate; 14. First gear; 15. Rotating shaft; 16. Counterweight; 17. Slide plate; 18. Rack; 19. Second gear; 20. Third gear; 21. Arc plate; 22. Mounting groove. Detailed Implementation
[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0029] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0032] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 An anti-clogging grate for a cement mill includes an intermediate ring 3, a frame 1 fixedly connected to the surface of the intermediate ring 3, and grate plates 4 arranged circumferentially between the frame 1 and the intermediate ring 3. A through groove 5 is provided on the surface of the grate plate 4 to provide a passage for materials. A connecting mechanism is provided between the grate plate 4, the frame 1, and the intermediate ring 3. An installation groove 22 is provided inside the grate plate 4, and an anti-clogging mechanism is provided inside the installation groove 22.
[0033] Please refer to Figure 6 The anti-clogging mechanism includes a rotating rod 6, the surface of which is rotatably connected to the inner wall of the through groove 5. Two rotating rods 6 are provided in each through groove 5 to push the material stuck in the through groove 5. The surface of the rotating rod 6 can be provided with a conical protrusion, which can grind the material stuck in the through groove 5 to a certain extent, reduce the volume of the material, and at the same time, the conical protrusion can better push the stuck material and make it discharge from the through groove 5.
[0034] One end of the rotating rod 6 extends into the mounting groove 22. The ends of both rotating rods 6 located inside the mounting groove 22 are fixedly connected to a first gear 14. Two meshing third gears 20 are rotatably connected to the inner wall of the mounting groove 22, located between the two first gears 14. The two third gears 20 mesh with the two first gears 14 respectively. A rotating shaft 15 is provided inside the mounting groove 22, coaxially connected to one of the third gears 20 to drive the third gear 20 to rotate. A second gear 19 is fixedly connected to the surface of the rotating shaft 15. A sliding plate 17 is slidably connected to the inner wall of the mounting groove 22. Counterweights 16 are fixedly connected to both ends of the sliding plate 17, and their surfaces are slidably connected to the inner wall of the mounting groove 22. Equally spaced racks 18 are fixedly connected to the surface of the sliding plate 17, meshing with the surface of the second gear 19 to drive the second gear 19 to rotate.
[0035] Please refer to Figure 1 , Figure 2, Figure 3 , Figure 4 , Figure 5 and Figure 7 The connecting mechanism includes a fitting plate 8 fixedly connected to the surface of the grate plate 4. The inner wall of the frame 1 is provided with a fitting groove 7, which is adapted to the fitting groove 7. The surface of the fitting plate 8 is provided with a slot 11. An arc plate 21 is slidably connected inside the frame 1. Both ends of the arc plate 21 are bevels. The arc plate 21 can be inserted into the slot 11 to restrict the fitting plate 8. A spring 2 is fixedly connected to the surface of the arc plate 21. The end of the spring 2 away from the arc plate 21 is fixedly connected to the inside of the frame 1. The arc plate 21 can be reset by the setting of the spring 2. When the grate plate 4 is installed between the frame 1 and the intermediate ring 3, the spring 2 is in a compressed state.
[0036] The inner thread of the intermediate ring 3 is connected to an inner threaded sleeve 9. One end of the inner threaded sleeve 9 is tapered. The inner side of the frame 1 is slidably connected to a movable plate 13. The movable plate 13 is in contact with the surface of the inner threaded sleeve 9. An operating handle 10 is fixedly connected to the surface of the inner threaded sleeve 9. Thus, the operation handle 10 facilitates the rotation of the inner threaded sleeve 9 by the operator.
[0037] A plate 12 is fixedly connected to the side of the grate 4 near the middle ring 3. The surface of the plate 12 slides against the inside of the middle ring 3, so that the plate 12 and the fitting plate 8 cooperate with each other to restrict both ends of the grate 4 and ensure the stability of the grate 4 installation.
[0038] The anti-clogging grate for a cement mill provided by this utility model is used as follows: When processing cement, the grate 4 rotates with the cement mill. Since the cement mill rotates at a relatively slow speed (10-20 r / min) and the two counterweights 16 are relatively heavy, the position of the counterweights 16 changes continuously as the grate 4 rotates. At the same time, under the action of gravity, the counterweights 16 drive the sliding plate 17 to slide in the mounting groove 22, thereby driving the rack 18 to move. Since the rack 18 is meshed with the second gear 19, it drives the rotating shaft 15 to rotate, thereby driving the third gear 20 to rotate. Through meshing, it drives the two rotating rods 6 to rotate in the through groove 5, so that the two rotating rods 6 rotate relative to each other or in opposite directions, thereby grinding and pushing the material stuck between the two rotating rods 6, reducing the volume of the material or pushing the material out of the through groove 5, thus avoiding the material from clogging the through groove 5.
[0039] When the grate plate 4 needs to be removed and replaced, the operator can rotate the operating handle 10 to drive the internal threaded sleeve 9 to separate from the intermediate ring 3. This allows the flat surface of the internal threaded sleeve 9 to no longer squeeze and push the movable plate 13, giving the movable plate 13 room to move. At this time, under the elastic force of the spring 2, the arc plate 21 pushes the movable plate 13, so that the movable plate 13 no longer intervenes between the two arc plates 21. The movement of the arc plate 21 also prevents it from inserting into the slot 11, thus freeing the fitting plate 8 from restriction. At this time, the grate plate 4 can be separated from the frame 1 and the intermediate ring 3, making it easier for the operator to replace the grate plate 4 and further improving the efficiency of the device.
[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0041] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.
Claims
1. An anti-clogging grate for a cement mill, characterized in that, Includes an intermediate ring (3), the surface of which is fixedly connected to a frame (1), and a grating plate (4) arranged circumferentially between the frame (1) and the intermediate ring (3). The surface of the grating plate (4) is provided with a through groove (5) that penetrates the surface of the grating plate (4). A connecting mechanism is provided between the grating plate (4), the frame (1), and the intermediate ring (3). An installation groove (22) is provided inside the grating plate (4), and an anti-clogging mechanism is provided inside the installation groove (22). The anti-clogging mechanism includes a rotating rod (6), the surface of which is rotatably connected to the inner wall of the through groove (5). Two rotating rods (6) are provided in each through groove (5). The surface of the rotating rod (6) may be provided with a conical protrusion. One end of the rotating rod (6) extends into the mounting groove (22). The two rotating rods (6) are fixedly connected to a first gear (14) at one end inside the mounting groove (22). Two meshing third gears (20) are rotatably connected to the inner wall of the mounting groove (22). The two third gears (20) are located between the two first gears (14) and mesh with the two first gears (14) respectively.
2. The anti-clogging grate for a cement mill according to claim 1, characterized in that, The mounting groove (22) is provided with a rotating shaft (15) inside. The rotating shaft (15) is coaxially connected to a third gear (20). A second gear (19) is fixedly connected to the surface of the rotating shaft (15). A sliding plate (17) is slidably connected to the inner wall of the mounting groove (22). A rack (18) arranged at equal intervals is fixedly connected to the surface of the sliding plate (17). The surface of the rack (18) meshes with the surface of the second gear (19).
3. The anti-clogging grate for a cement mill according to claim 2, characterized in that, The two ends of the slide plate (17) are fixedly connected to counterweights (16), and the surface of the counterweights (16) is slidably connected to the inner wall of the mounting groove (22).
4. The anti-clogging grate for a cement mill according to claim 3, characterized in that, The connecting mechanism includes a fitting plate (8) fixedly connected to the surface of the grate plate (4), and a fitting groove (7) is provided on the inner wall of the frame (1). The fitting plate (8) is adapted to the fitting groove (7). A slot (11) is provided on the surface of the fitting plate (8). An arc plate (21) is slidably connected inside the frame (1). Both ends of the arc plate (21) are inclined surfaces. The arc plate (21) can be inserted into the slot (11).
5. The anti-clogging grate for a cement mill according to claim 4, characterized in that, A spring (2) is fixedly connected to the surface of the arc plate (21), and the end of the spring (2) away from the arc plate (21) is fixedly connected to the inside of the frame (1).
6. The anti-clogging grate for a cement mill according to claim 5, characterized in that, The intermediate ring (3) is internally threaded with an internal threaded sleeve (9), one end of which is tapered. The frame (1) is internally slidably connected with a movable plate (13), which is in contact with the surface of the internal threaded sleeve (9).
7. The anti-clogging grate for a cement mill according to claim 6, characterized in that, A plate (12) is fixedly connected to the side of the grate (4) near the middle ring (3), and the surface of the plate (12) slides against the interior of the middle ring (3).
8. The anti-clogging grate for a cement mill according to claim 7, characterized in that, An operating handle (10) is fixedly connected to the surface of the internal threaded sleeve (9).