Air guide blade structure of cement vertical mill powder concentrator

Abstract

The utility model provides a cement vertical mill powder concentrator air guide blade structure, and relates to the technical field of powder concentrators, the cement vertical mill powder concentrator air guide blade structure comprises a first mounting plate, a second mounting plate and a plurality of air guide blades, the first mounting plate is rotatably provided with a plurality of first rotating seats, the first rotating seats are provided with limiting through grooves, the second mounting plate is rotatably provided with a plurality of second rotating seats, and the second rotating seats are provided with limiting through grooves; a limiting slot is formed in the second rotating seat, the air guide blade penetrates through the limiting slot, the lower end of the air guide blade can be inserted into the limiting slot, a first locking assembly is arranged on the first mounting plate and can abut against the upper end of the air guide blade, and a transmission assembly and a second locking assembly are arranged on the second mounting plate and can abut against the upper end of the air guide blade. The transmission assembly and the second locking assembly are both connected with the second rotating seat; the single air guide blade can be quickly disassembled and assembled conveniently, and the use convenience and the production efficiency are improved; the included angle between the air guide blade and the rotor can be adjusted, and the applicability is improved.

Description

Technical Field

[0001] This application relates to the technical field of air separators, and more particularly, to a structure of air guiding vanes for a vertical roller mill air separator in cement production. Background Art

[0002] A vertical roller mill is an ideal large-scale grinding equipment, widely used in industries such as cement, power, metallurgy, chemical engineering, and non-metallic minerals. The motor of the vertical roller mill drives the grinding table to rotate through a speed reducer. Materials fall from the feeding port to the center of the grinding table and move towards the edge of the grinding table under the action of centrifugal force, where they are crushed by the grinding rollers. The crushed materials overflow from the edge of the grinding table and are simultaneously carried by the high-speed upward hot air flow from the nozzle ring (air ring) into the high-efficiency air separator integrated with the vertical roller mill. The coarse powder is separated by the separator and returned to the grinding table for re-grinding, while the fine powder exits the mill with the air flow and is collected in the dust collection device of the system, which is the product.

[0003] During operation, the air separator of the vertical roller mill needs to rotate at a high speed through the internal rotor, driving the powder and air flow to scour each other. After long-term use, the air guiding vanes on the rotor will be worn and need to be repaired or replaced. However, currently, most of the air guiding vanes of the vertical roller mill air separator are fixed to the rotor by welding, which is inconvenient for disassembling and assembling a single air guiding vane, affecting production efficiency. Moreover, the included angle between the air guiding vane and the rotor cannot be adjusted, resulting in poor applicability. Summary of the Invention

[0004] The purpose of the embodiments of this application is to provide a structure of air guiding vanes for a vertical roller mill air separator in cement production, which can solve the technical problems that most of the air guiding vanes of the current vertical roller mill air separator are fixed to the rotor by welding, making it inconvenient to disassemble and assemble a single air guiding vane, affecting production efficiency, and the included angle between the air guiding vane and the rotor cannot be adjusted, resulting in poor applicability.

[0005] The embodiments of this application provide a structure of air guiding vanes for a vertical roller mill air separator in cement production, including a first mounting plate, a second mounting plate, and a plurality of air guiding vanes. A plurality of first rotating seats are rotatably arranged on the first mounting plate, and a limiting through slot is formed in the first rotating seat. A plurality of second rotating seats are rotatably arranged on the second mounting plate, and a limiting slot is formed in the second rotating seat. The air guiding vane penetrates through the limiting through slot, and the lower end of the air guiding vane can be inserted into the limiting slot. A first locking assembly is arranged on the first mounting plate, and the first locking assembly can abut against the upper end of the air guiding vane. A transmission assembly and a second locking assembly are arranged on the second mounting plate, and both the transmission assembly and the second locking assembly are connected to the second rotating seat.

[0006] Wherein, the first mounting plate is provided with a through hole, the first rotating seat is rotatably arranged in the through hole, the first locking assembly includes a cover plate, the cover plate is in threaded cooperation with the through hole, and the cover plate can abut against the upper end of the air guiding vane.

[0007] Wherein, the second mounting plate is hollow, the second rotating seat is rotatably arranged in the second mounting plate, the transmission assembly includes a first connecting rod, a gear and a toothed ring, the first connecting rod is rotatably arranged in the second mounting plate through a bearing, and the first connecting rod extends outside the second mounting plate, the gear and the toothed ring are both located in the second mounting plate, the gear is fixedly sleeved on the first connecting rod, the toothed ring is fixedly sleeved on the rotating seat, and the gear is meshed with the toothed ring.

[0008] Wherein, the second locking assembly includes a second connecting rod, a toothed plate, a baffle and an elastic member, the second connecting rod penetrates through the second mounting plate, and the second connecting rod is in limit sliding connection with the second mounting plate, the toothed plate is located in the second mounting plate, the toothed plate is fixedly connected with the second connecting rod, the toothed plate is meshed with the toothed ring, and the elastic member is pre-pressed between the toothed plate and the inner wall of the second mounting plate.

[0009] Wherein, handles are respectively arranged on the cover plate, the end of the first connecting rod far away from the second mounting plate, and the end of the second connecting rod far away from the second mounting plate.

[0010] Wherein, the first mounting plate is provided with a first annular sliding groove, a first sliding block is fixedly arranged on the first rotating seat, and the first sliding block is in limit sliding connection with the first annular sliding groove.

[0011] Wherein, the second mounting plate is provided with a second annular sliding groove, a second sliding block is fixedly arranged on the second rotating seat, and the second sliding block is in limit sliding connection with the second annular sliding groove.

[0012] Advantages of the present utility model:

[0013] 1. For the air guiding vane structure of the cement vertical mill classifier provided by the present utility model, when installing the air guiding vane, after passing the air guiding vane through the limit through groove of the first rotating seat, insert it into the limit slot of the second rotating seat, and then tighten the upper end of the air guiding vane through the first locking assembly. The limit through groove and the limit slot cooperate to limit and fix the air guiding vane in the horizontal direction, and the limit slot and the first locking assembly cooperate to limit and fix the air guiding vane in the vertical direction, so as to install the air guiding vane between the first mounting plate and the second mounting plate. The first mounting plate and the second mounting plate are fixedly installed on the rotor of the vertical mill classifier, and then the powder selection work can be carried out normally. This application is convenient for quickly disassembling and assembling a single air guiding vane, improving the use convenience and production efficiency.

[0014] 2. For the air guiding vane structure of the cement vertical mill separator provided by the present utility model, when the angle of the air guiding vane needs to be adjusted, first release the locking and fixing of the second rotating seat through the second locking assembly, and then drive the second rotating seat to rotate through the transmission assembly. The second rotating seat drives the air guiding vane to rotate until the target angle. The first rotating seat rotates together with the air guiding vane. Subsequently, lock and fix the second rotating seat through the second locking assembly, and the angle adjustment of the air guiding vane can be completed. This application can adjust the included angle between the air guiding vane and the rotor, improving the applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0016] Figure 1 Schematic diagram of the overall front view structure in some embodiments of the present application;

[0017] Figure 2 Schematic diagram of the cross-sectional view of the front view structure of the first mounting plate in some embodiments of the present application;

[0018] Figure 3 Schematic diagram of the top view structure of the first mounting plate in some embodiments of the present application;

[0019] Figure 4 Schematic diagram of the cross-sectional view of the top view structure of the first mounting plate in some embodiments of the present application;

[0020] Figure 5 Schematic diagram of the cross-sectional view of the front view structure of the second mounting plate in some embodiments of the present application;

[0021] Figure 6 Schematic diagram of the top view structure of the second mounting plate in some embodiments of the present application;

[0022] Figure 7 Schematic diagram of the cross-sectional view of the top view structure of the second mounting plate in some embodiments of the present application.

[0023] The reference numerals are respectively:

[0024] 1. First mounting plate; 11. First rotating seat; 12. Limiting through groove; 13. Through hole; 14. First annular sliding groove; 15. First slider;

[0025] 2. Second mounting plate; 21. Second rotating seat; 22. Limit slot; 23. Second annular sliding groove; 24. Second slider;

[0026] 3. Air guide vane;

[0027] 4. First locking assembly; 41. Cover plate;

[0028] 5. Transmission assembly; 51. First connecting rod; 52. Gear; 53. Ring gear;

[0029] 6. Second locking assembly; 61. Second connecting rod; 62. Rack; 63. Baffle; 64. Elastic member;

[0030] 7. Handle. Specific embodiments

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application that is claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0033] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0034] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0035] In addition, terms such as "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0036] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" 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 a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0037] As Figure 1 , 2 As shown in FIGS. 5, the present application embodiment provides a structure of a wind guiding vane for a vertical roller mill separator, including a first mounting plate 1, a second mounting plate 2 and a plurality of wind guiding vanes 3. A plurality of first rotating seats 11 are rotatably arranged on the first mounting plate 1, and a limiting through groove 12 is formed in the first rotating seat 11. A plurality of second rotating seats 21 are rotatably arranged on the second mounting plate 2, and a limiting slot 22 is formed in the second rotating seat 21. The wind guiding vane 3 penetrates through the limiting through groove 12, and the lower end of the wind guiding vane 3 can be inserted into the limiting slot 22. A first locking assembly 4 is arranged on the first mounting plate 1, and the first locking assembly 4 can abut against the upper end of the wind guiding vane 3. A transmission assembly 5 and a second locking assembly 6 are arranged on the second mounting plate 2, and both the transmission assembly 5 and the second locking assembly 6 are connected to the second rotating seat 21.

[0038] When installing the wind guiding vane 3, after passing the wind guiding vane 3 through the limiting through groove 12 of the first rotating seat 11, insert it into the limiting slot 22 of the second rotating seat 21, and then tighten the upper end of the wind guiding vane 3 through the first locking assembly 4. The limiting through groove 12 and the limiting slot 22 cooperate to limit and fix the wind guiding vane 3 in the horizontal direction, and the limiting slot 22 and the first locking assembly 4 cooperate to limit and fix the wind guiding vane 3 in the vertical direction, so that the wind guiding vane 3 can be installed between the first mounting plate 1 and the second mounting plate 2. The first mounting plate 1 and the second mounting plate 2 are fixedly installed on the rotor of the vertical roller mill separator, and then the powder selection work can be carried out normally. The present application facilitates the quick disassembly and assembly of a single wind guiding vane 3, improving the use convenience and production efficiency.

[0039] When the angle of the air guiding vane 3 needs to be adjusted, first release the locking and fixing of the second rotating seat 21 through the second locking assembly 6, and then drive the second rotating seat 21 to rotate through the transmission assembly 5. The second rotating seat 21 drives the air guiding vane 3 to rotate until the target angle. The first rotating seat 11 rotates together with the air guiding vane 3. Then, lock and fix the second rotating seat 21 through the second locking assembly 6, and the angle adjustment of the air guiding vane 3 can be completed. The present application can adjust the included angle between the air guiding vane 3 and the rotor, improving the applicability.

[0040] As Figures 2 to 4 shown, in this embodiment, the first mounting plate 1 is provided with a through hole 13, and the first rotating seat 11 is rotatably arranged in the through hole 13. The first locking assembly 4 includes a cover plate 41, and the cover plate 41 is in threaded cooperation with the through hole 13. The cover plate 41 can abut against the upper end of the air guiding vane 3.

[0041] When installing the air guiding vane 3, pass the air guiding vane 3 through the limiting through groove 12 of the first rotating seat 11 and then insert it into the limiting slot 22 of the second rotating seat 21. Then, thread the cover plate 41 into the through hole 13 until the cover plate 41 tightly abuts against the upper end of the air guiding vane 3.

[0042] As Figures 5 to 7 shown, in this embodiment, the second mounting plate 2 is hollow, and the second rotating seat 21 is rotatably arranged in the second mounting plate 2. The transmission assembly 5 includes a first connecting rod 51, a gear 52, and a toothed ring 53. The first connecting rod 51 is rotatably arranged in the second mounting plate 2 through a bearing, and the first connecting rod 51 extends outside the second mounting plate 2. The gear 52 and the toothed ring 53 are both located in the second mounting plate 2. The gear 52 is fixedly sleeved on the first connecting rod 51, and the toothed ring 53 is fixedly sleeved on the rotating seat. The gear 52 is meshed and connected with the toothed ring 53.

[0043] When the angle of the air guiding vane 3 needs to be adjusted, first release the locking and fixing of the second rotating seat 21 through the second locking assembly 6, and then rotate the first connecting rod 51 to drive the gear 52 to rotate. The gear 52 drives the toothed ring 53 to rotate. The toothed ring 53 drives the second rotating seat 21 to rotate. The second rotating seat 21 drives the air guiding vane 3 to rotate until the target angle. The first rotating seat 11 rotates together with the air guiding vane 3. Then, lock and fix the second rotating seat 21 through the second locking assembly 6, and the angle adjustment of the air guiding vane 3 can be completed.

[0044] As Figures 5 to 7As shown, in this embodiment, the second locking assembly 6 includes a second connecting rod 61, a toothed plate 62, a baffle 63 and an elastic member 64. The second connecting rod 61 penetrates through the second mounting plate 2, and the second connecting rod 61 is in limiting sliding connection with the second mounting plate 2. The toothed plate 62 is located inside the second mounting plate 2, the toothed plate 62 is fixedly connected to the second connecting rod 61, the toothed plate 62 is in meshing connection with the toothed ring 53, and the elastic member 64 is pre-pressed between the toothed plate 62 and the inner wall of the second mounting plate 2.

[0045] The elastic member 64 is a spring; when it is necessary to adjust the angle of the air guide vane 3, first pull up the second connecting rod 61 to drive the toothed plate 62 to move upward away from the toothed ring 53, so as to release the locking and fixing of the second rotating seat 21. At this time, the elastic member 64 is compressed. Then rotate the first connecting rod 51 to drive the gear 52 to rotate, the gear 52 drives the toothed ring 53 to rotate, the toothed ring 53 drives the second rotating seat 21 to rotate, the second rotating seat 21 drives the air guide vane 3 to rotate until the target angle, and the first rotating seat 11 rotates together with the air guide vane 3. Then release the second connecting rod 61. Under the elastic force of the elastic member 64, the second connecting rod 61 drives the toothed plate 62 to move downward until it contacts the toothed ring 53. At this time, the angle of the second rotating seat 21 can be finely adjusted so that the toothed ring 53 is in meshing connection with the toothed plate 62. The baffle 63 moves downward together with the second connecting rod 61 until the baffle 63 abuts against the second mounting plate 2. At this time, the position of the toothed plate 62 is fixed, and the toothed plate 62 and the toothed ring 53 cooperate to lock and fix the second rotating seat 21, and the angle adjustment of the air guide vane 3 can be completed.

[0046] As Figures 2 to 7 shown, in this embodiment, handles 7 are respectively arranged on the cover plate 41, at one end of the first connecting rod 51 away from the second mounting plate 2, and at one end of the second connecting rod 61 away from the second mounting plate 2.

[0047] The handles 7 facilitate the staff to move the cover plate 41, the first connecting rod 51 or the second connecting rod 61, and improve the use convenience.

[0048] As Figure 2 and 4 shown, in this embodiment, the first mounting plate 1 is provided with a first annular chute 14, and a first slider 15 is fixedly arranged on the first rotating seat 11. The first slider 15 is in limiting sliding connection with the first annular chute 14.

[0049] The cooperation of the first slider 15 and the first annular chute 14 makes the first rotating seat 11 rotate more stably and smoothly, and improves the use stability.

[0050] As Figure 5 shown, in this embodiment, the second mounting plate 2 is provided with a second annular chute 23, and a second slider 24 is fixedly arranged on the second rotating seat 21. The second slider 24 is in limiting sliding connection with the second annular chute 23.

[0051] The cooperation between the second slider 24 and the second annular sliding groove 23 makes the second rotating seat 21 more stable and smooth during rotation, improving the usage stability.

[0052] Working principle: For the air guiding vane structure of the vertical roller mill separator provided in this application, when installing the air guiding vane 3, pass the air guiding vane 3 through the limit through groove 12 of the first rotating seat 11 and then insert it into the limit slot 22 of the second rotating seat 21. Subsequently, screw the cover plate 41 into the through hole 13 until the cover plate 41 tightly abuts against the upper end of the air guiding vane 3. The cooperation between the limit through groove 12 and the limit slot 22 plays a role in limiting and fixing the air guiding vane 3 in the horizontal direction, and the cooperation between the limit slot 22 and the first locking assembly 4 plays a role in limiting and fixing the air guiding vane 3 in the vertical direction, so that the air guiding vane 3 can be installed between the first mounting plate 1 and the second mounting plate 2. The first mounting plate 1 and the second mounting plate 2 are fixedly installed on the rotor of the vertical roller mill separator, and then the separation work can be carried out normally;

[0053] When it is necessary to adjust the angle of the air guiding vane 3, first pull up the second connecting rod 61 to drive the toothed plate 62 to move upward away from the toothed ring 53, thereby releasing the locking and fixing of the second rotating seat 21. At this time, the elastic member 64 is compressed. Subsequently, rotate the first connecting rod 51 to drive the gear 52 to rotate, the gear 52 drives the toothed ring 53 to rotate, the toothed ring 53 drives the second rotating seat 21 to rotate, and the second rotating seat 21 drives the air guiding vane 3 to rotate until the target angle. The first rotating seat 11 rotates together with the air guiding vane 3. Then release the second connecting rod 61. Under the elastic force of the elastic member 64, the second connecting rod 61 drives the toothed plate 62 to move downward until it contacts the toothed ring 53. At this time, the angle of the second rotating seat 21 can be finely adjusted so that the toothed ring 53 is meshed and connected with the toothed plate 62. The baffle 63 moves downward together with the second connecting rod 61 until the baffle 63 abuts against the second mounting plate 2. At this time, the position of the toothed plate 62 is fixed, and the cooperation between the toothed plate 62 and the toothed ring 53 locks and fixes the second rotating seat 21, and the angle adjustment of the air guiding vane 3 can be completed.

[0054] The above are only the preferred embodiments of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

1. A structure of a wind guiding vane for a vertical roller mill separator of cement, characterized in that: It includes a first mounting plate (1), a second mounting plate (2) and a plurality of air guide vanes (3). A plurality of first rotating seats (11) are rotatably arranged on the first mounting plate (1). The first rotating seats (11) are provided with limiting through grooves (12). A plurality of second rotating seats (21) are rotatably arranged on the second mounting plate (2). The second rotating seats (21) are provided with limiting slots (22). The air guide vanes (3) penetrate through the limiting through grooves (12), and the lower ends of the air guide vanes (3) can be inserted into the limiting slots (22). A first locking assembly (4) is arranged on the first mounting plate (1), and the first locking assembly (4) can abut against the upper ends of the air guide vanes (3). A transmission assembly (5) and a second locking assembly (6) are arranged on the second mounting plate (2). The transmission assembly (5) and the second locking assembly (6) are both connected to the second rotating seats (21).

2. The air guiding vane structure of the cement vertical mill separator according to claim 1, characterized in that: The first mounting plate (1) is provided with a through hole (13). The first rotating seat (11) is rotatably arranged in the through hole (13). The first locking assembly (4) includes a cover plate (41). The cover plate (41) is in threaded cooperation with the through hole (13), and the cover plate (41) can abut against the upper ends of the air guide vanes (3).

3. The air guiding vane structure of the cement vertical mill separator according to claim 2, wherein: The second mounting plate (2) is hollow. The second rotating seat (21) is rotatably arranged in the second mounting plate (2). The transmission assembly (5) includes a first connecting rod (51), a gear (52) and a toothed ring (53). The first connecting rod (51) is rotatably arranged in the second mounting plate (2) through a bearing, and the first connecting rod (51) extends outside the second mounting plate (2). The gear (52) and the toothed ring (53) are both located in the second mounting plate (2). The gear (52) is fixedly sleeved on the first connecting rod (51), and the toothed ring (53) is fixedly sleeved on the rotating seat. The gear (52) is meshed and connected with the toothed ring (53).

4. The structure of the air guiding vane of the vertical cement mill separator according to claim 3, characterized in that: The second locking assembly (6) includes a second connecting rod (61), a toothed plate (62), a baffle (63) and an elastic member (64). The second connecting rod (61) penetrates through the second mounting plate (2), and the second connecting rod (61) is in limit sliding connection with the second mounting plate (2). The toothed plate (62) is located in the second mounting plate (2). The toothed plate (62) is fixedly connected with the second connecting rod (61). The toothed plate (62) is meshed and connected with the toothed ring (53). The elastic member (64) is pre-pressed between the toothed plate (62) and the inner wall of the second mounting plate (2).

5. The air guiding vane structure of the vertical cement mill classifier according to claim 4, wherein: Handles (7) are respectively arranged on the cover plate (41), the end of the first connecting rod (51) far away from the second mounting plate (2), and the end of the second connecting rod (61) far away from the second mounting plate (2).

6. The air guiding vane structure of the cement vertical mill separator according to claim 1, wherein: The first mounting plate (1) is provided with a first annular sliding groove (14), and a first sliding block (15) is fixedly arranged on the first rotating seat (11), and the first sliding block (15) is in limiting sliding connection with the first annular sliding groove (14).

7. The air guiding vane structure of the cement vertical mill separator according to claim 1, characterized in that: The second mounting plate (2) is provided with a second annular sliding groove (23), and a second sliding block (24) is fixedly arranged on the second rotating seat (21), and the second sliding block (24) is in limiting sliding connection with the second annular sliding groove (23).

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