Vertical mill feeding structure for cement production

Abstract

The utility model relates to the technical field of cement production, in particular to a vertical mill feeding structure for cement production, which comprises a mounting frame, a conveying belt, a driving mechanism, a support frame, a raking roller, a friction roller and a transmission mechanism, the conveying belt is arranged on the inner side of the mounting frame; the driving mechanism is arranged on the mounting frame, and the output end of the driving mechanism is in transmission connection with the conveying belt; the supporting frame is installed on the installation frame and stretches across the conveying belt. The material raking roller is arranged in the supporting frame and located above the conveying belt. The friction roller is arranged in the mounting frame, the two ends of the friction roller are rotationally connected with the mounting frame, and the surface of the friction roller is in friction connection with the conveying belt. The transmission mechanism is arranged between the mounting frame and the supporting frame. Through the arrangement of the transmission mechanism, the harrowing roller is driven to rotate to harrow materials on the conveying belt in the feeding process of the conveying belt, so that the raw materials on the conveying belt are distributed more uniformly, the uniform feeding effect is achieved, and the running stability of the vertical mill is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cement production, in particular to a vertical mill feeding structure for cement production. Background Art

[0002] The production of cement is referred to as two grindings and one calcination. Two grindings refers to two grindings, while one calcination refers to one calcination. The first grinding is to mix the quicklime raw materials with other ingredients through a vertical mill and grind them into fine powder. Then the mixed and ground raw materials are calcined. After calcination, they are ground twice through a vertical mill to complete the production of cement powder. Before the materials are fed into the vertical mill, a feeding structure is required to transport and temporarily store them. The automated operation is simple and convenient.

[0003] Patent authorization announcement No. CN 217856645 U discloses a vertical mill feeding structure for cement production, including a base, a raw material box, a raw material inlet, a triangular block, a feeding box, a discharging box, and a cement vertical mill inlet box. The raw material box is fixedly provided on the left side of the upper surface of the base, and the raw material inlet is located on the left side of the upper surface of the raw material box. A triangular block is fixedly provided on the inner bottom of the raw material box, and the right surface of the raw material box is penetrated by the feeding box, and the discharging box is located at the bottom of the right end of the feeding box; a telescopic plate is provided, and the adjusting bolt is turned to drive the telescopic plate to move, so that the distance between the telescopic plate and the feeding belt conveyor is different, so that the telescopic plate blocks the material on the feeding belt conveyor to prevent too much material on the feeding belt conveyor, and the shorter the distance between the telescopic plate and the feeding belt conveyor, the less material on the feeding belt conveyor, thereby achieving the effect of adjusting the material conveying speed on the feeding belt conveyor, and better practicality.

[0004] However, the above technical solution has the following shortcomings: the material on the feeding belt is scraped flat by the telescopic plate. In actual production, due to the different particle sizes of the materials, the telescopic plate is not only difficult to scrape the material on the belt flat, but also can easily scrape the material off the feeding belt, greatly reducing the feeding efficiency of the belt. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and proposes a vertical mill feeding structure for cement production.

[0006] The technical solution of the utility model is a vertical mill feeding structure for cement production, comprising:

[0007] Mounting rack;

[0008] A conveyor belt is arranged inside the mounting frame;

[0009] A driving mechanism is provided on the mounting frame, wherein the output end of the driving mechanism is connected to the conveyor belt;

[0010] a support frame mounted on the mounting frame and spanning the conveyor belt;

[0011] A rake roller is arranged in the support frame and is located above the conveyor belt;

[0012] The friction roller is arranged in the mounting frame, with both ends of the friction roller being rotatably connected to the mounting frame, and the surface of the friction roller being frictionally connected to the conveyor belt;

[0013] The transmission mechanism is arranged between the mounting frame and the supporting frame. The input end of the transmission mechanism is connected to the friction roller, and the output end of the transmission mechanism is connected to the rake roller.

[0014] Preferably, a plurality of rake teeth are provided on the surface of the rake roller, and the plurality of rake teeth are perpendicular to the central axis of the rake roller.

[0015] Preferably, the transmission mechanism includes a first sprocket, a second sprocket, a third sprocket, a transmission chain, an adjustment assembly and a follower assembly;

[0016] Two first sprockets are provided, and the two first sprockets are respectively connected to the two ends of the friction roller;

[0017] There are two second sprockets, and the two second sprockets are respectively connected to the two ends of the rake roller;

[0018] Two third sprockets are provided, and the two third sprockets are movably connected to two sides of the inner wall of the support frame respectively;

[0019] There are two transmission chains, which are respectively connected to the first sprocket, the second sprocket and the third sprocket on both sides;

[0020] The adjusting component is arranged in the supporting frame, and both ends of the raking roller are rotatably connected to the adjusting component;

[0021] Two groups of follower assemblies are provided, the fixed ends of the two groups of follower assemblies are respectively connected to the two sides of the inner wall of the support frame, and the movable ends of the two groups of follower assemblies are rotationally connected to the third sprocket.

[0022] Preferably, the adjustment assembly includes a movable frame, a threaded rod and an adjustment handwheel;

[0023] The movable frame is slidably connected to the inner wall of the support frame, and both ends of the rake roller are rotatably connected to the inner wall of the movable frame;

[0024] One end of the threaded rod is rotatably connected to the movable frame, and the threaded rod passes through the support frame and is threadedly connected to the support frame;

[0025] The adjusting hand wheel is connected to one end of the threaded rod located outside the supporting frame.

[0026] Preferably, each follower assembly includes a fixing plate, an adjusting rod and a connecting seat.

[0027] The fixing plate is connected to the inner wall of the support frame;

[0028] The adjusting rod passes through the fixing plate, and the adjusting rod is threadedly connected to the fixing plate;

[0029] The connecting seat is slidably connected to the inner wall of the supporting frame, the third sprocket is rotationally connected to the connecting seat, and one end of the adjusting rod is rotationally connected to the connecting seat.

[0030] Preferably, the driving mechanism includes a driving motor and a reduction gearbox;

[0031] The reduction gearbox is connected to the mounting frame, and the output end of the reduction gearbox is connected to the conveyor belt drive;

[0032] The driving motor is connected to the reduction box, and the output end of the driving motor is drivingly connected to the input end of the reduction box.

[0033] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects:

[0034] The utility model provides a transmission mechanism, and during the conveyor belt feeding process, the rake roller is driven to rotate to rake the material on the conveyor belt, so that the raw materials on the conveyor belt are distributed more evenly, thereby achieving the effect of uniform feeding, thereby improving the stability of the vertical mill operation. At the same time, a plurality of rake teeth are provided on the surface of the rake roller, which improves the fault tolerance of the rake roller, effectively reduces the influence of different particle sizes of the materials on the rake effect, and thus ensures the feeding efficiency of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A perspective view of an embodiment of the present invention;

[0036] Figure 2 This is a three-dimensional diagram of a transmission mechanism in an embodiment of the present invention;

[0037] Figure 3 For this utility model Figure 2 A partial enlarged view of point A in the middle;

[0038] Figure 4 This is a three-dimensional diagram of a follower assembly in an embodiment of the present invention.

[0039] Figure numerals: 1. Mounting frame; 2. Conveyor belt; 3. Driving mechanism; 31. Driving motor; 32. Reducer; 4. Support frame; 5. Transmission mechanism; 51. First sprocket; 52. Second sprocket; 53. Third sprocket; 54. Transmission chain; 55. Adjusting assembly; 551. Movable frame; 552. Threaded rod; 553. Adjusting handwheel; 56. Follow-up assembly; 561. Fixed plate; 562. Adjusting rod; 563. Connecting seat; 6. Rake roller; 7. Friction roller; 8. Rake teeth. DETAILED DESCRIPTION

[0040] Example 1

[0041] like Figure 1-4 As shown, the utility model proposes a vertical mill feeding structure for cement production, comprising a mounting frame 1, a conveyor belt 2, a driving mechanism 3, a supporting frame 4, a rake roller 6, a friction roller 7 and a transmission mechanism 5;

[0042] The mounting frame 1 is tilted;

[0043] The conveyor belt 2 is arranged inside the mounting frame 1, and the surface of the conveyor belt 2 is provided with anti-slip grooves;

[0044] The driving mechanism 3 is arranged on the mounting frame 1, and the output end of the driving mechanism 3 is transmission-connected to the conveyor belt 2;

[0045] The support frame 4 is installed on the mounting frame 1 and spans the conveyor belt 2;

[0046] The rake roller 6 is arranged in the support frame 4, and the rake roller 6 is located above the conveyor belt 2. The surface of the rake roller 6 is provided with a plurality of rake teeth 8, and the plurality of rake teeth 8 are perpendicular to the central axis of the rake roller 6;

[0047] The friction roller 7 is arranged in the mounting frame 1, and both ends of the friction roller 7 are rotatably connected to the mounting frame 1, and the surface of the friction roller 7 is frictionally connected to the conveyor belt 2;

[0048] The transmission mechanism 5 is arranged between the mounting frame 1 and the supporting frame 4 . The input end of the transmission mechanism 5 is in transmission connection with the friction roller 7 , and the output end of the transmission mechanism 5 is in transmission connection with the harrow roller 6 .

[0049] Example 2

[0050] like Figure 1-4 As shown, the present invention proposes a vertical mill feeding structure for cement production. Compared with the first embodiment, the present embodiment further discloses the structure of the transmission mechanism 5. The transmission mechanism 5 includes a first sprocket 51, a second sprocket 52, a third sprocket 53, a transmission chain 54, an adjustment component 55 and a follower component 56.

[0051] There are two first sprockets 51, and the two first sprockets 51 are fixedly connected to both ends of the friction roller 7 respectively;

[0052] There are two second sprockets 52, and the two second sprockets 52 are fixedly connected to the two ends of the rake roller 6 respectively;

[0053] There are two third sprockets 53, and the two third sprockets 53 are movably connected to both sides of the inner wall of the support frame 4;

[0054] Two transmission chains 54 are provided, and the two transmission chains 54 are respectively connected to the first sprocket 51, the second sprocket 52 and the third sprocket 53 on both sides;

[0055] The adjusting assembly 55 is arranged in the supporting frame 4, and both ends of the raking roller 6 are rotatably connected to the adjusting assembly 55;

[0056] There are two groups of follower assemblies 56 , the fixed ends of the two groups of follower assemblies 56 are respectively connected to the two sides of the inner wall of the support frame 4 , and the movable ends of the two groups of follower assemblies 56 are rotationally connected to the third sprocket 53 .

[0057] Example 3

[0058] like Figure 2-3 As shown, the present invention proposes a vertical mill feeding structure for cement production. Compared with the second embodiment, this embodiment further specifically discloses the structures of the adjustment component 55 and the follower component 56; the adjustment component 55 includes a movable frame 551, a threaded rod 552 and an adjustment hand wheel 553;

[0059] The movable frame 551 is slidably connected to the inner wall of the support frame 4, and both ends of the raking roller 6 are rotatably connected to the inner wall of the movable frame 551;

[0060] One end of the threaded rod 552 is rotatably connected to the movable frame 551 , and the threaded rod 552 passes through the support frame 4 and is threadedly connected to the support frame 4 ;

[0061] The adjusting hand wheel 553 is connected to one end of the threaded rod 552 located outside the support frame 4 .

[0062] Each follower assembly 56 includes a fixing plate 561, an adjusting rod 562 and a connecting seat 563;

[0063] The fixing plate 561 is fixedly connected to the inner wall of the support frame 4;

[0064] The adjusting rod 562 passes through the fixing plate 561 and is an adjusting screw rod and is threadedly connected to the fixing plate 561;

[0065] The connecting seat 563 is slidably connected to the inner wall of the supporting frame 4 , the third sprocket 53 is rotationally connected to the connecting seat 563 , and one end of the adjusting rod 562 is rotationally connected to the connecting seat 563 .

[0066] Example 4

[0067] like Figure 1 As shown, the present invention proposes a vertical mill feeding structure for cement production. Compared with the third embodiment, this embodiment further specifically discloses the structure of the driving mechanism 3, which includes a driving motor 31 and a reduction box 32;

[0068] The outer shell of the reduction box 32 is fixedly connected to the mounting frame 1, and the output end of the reduction box 32 is drivingly connected to the conveyor belt 2;

[0069] The drive motor 31 is a variable frequency motor, which is electrically connected to the power supply and control system through wires. The drive motor 31 is fixedly connected to the housing of the reduction gearbox 32 , and the output end of the drive motor 31 is transmission-connected to the input end of the reduction gearbox 32 .

[0070] When the utility model is used, the discharge end of the conveyor belt 2 is adjusted to the feeding port on the top of the vertical mill, and the driving motor 31 is turned on through the control panel. The driving motor 31 drives the conveyor belt 2 to rotate after being decelerated by the reduction box 32. The grab bucket places the production raw materials on the conveyor belt 2. The conveyor belt 2 runs to transport the raw materials to the feeding port of the vertical mill. During the operation of the conveyor belt 2, the friction roller 7 and the first sprocket 51 are driven to rotate together by the friction effect. The rotation of the first sprocket 51 drives the second sprocket 52 and the rake roller 6 to rotate together through the transmission chain 54. The rake roller 6 rotates The material on the conveyor belt 2 is raked to make the raw materials on the conveyor belt 2 more evenly distributed, thereby achieving the purpose of uniform feeding. When the workload of the vertical mill changes and the feeding speed needs to be adjusted, the adjusting handwheel 553 is rotated to drive the threaded rod 552 to rotate together. The threaded rod 552 rotates to push the movable frame 551 to move. The movable frame 551 moves to change the distance between the raking roller 6 and the conveyor belt 2. When adjusting the position of the movable frame 551, it is necessary to rotate the adjusting rod 562 to drive the connecting seat 563 and the third sprocket 53 to move together to ensure the tension of the transmission chain 54.

[0071] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A vertical mill feeding structure for cement production, characterized in that: include: Mounting frame (1); A conveyor belt (2) is arranged inside the mounting frame (1); A driving mechanism (3) is arranged on the mounting frame (1), and an output end of the driving mechanism (3) is in driving connection with the conveyor belt (2); A support frame (4) is mounted on the mounting frame (1) and spans the conveyor belt (2); A raking roller (6) is arranged in the support frame (4), and the raking roller (6) is located above the conveyor belt (2); A friction roller (7) is arranged in the mounting frame (1), with both ends of the friction roller (7) being rotatably connected to the mounting frame (1), and a surface of the friction roller (7) being frictionally connected to the conveyor belt (2); The transmission mechanism (5) is arranged between the mounting frame (1) and the supporting frame (4); the input end of the transmission mechanism (5) is connected to the friction roller (7); and the output end of the transmission mechanism (5) is connected to the rake roller (6).

2. The vertical mill feeding structure for cement production according to claim 1, characterized in that: The surface of the harrow roller (6) is provided with a plurality of harrow teeth (8), and the plurality of harrow teeth (8) are all perpendicular to the central axis of the harrow roller (6).

3. The vertical mill feeding structure for cement production according to claim 1, characterized in that: The transmission mechanism (5) includes a first sprocket (51), a second sprocket (52), a third sprocket (53), a transmission chain (54), an adjustment component (55) and a follower component (56); Two first sprockets (51) are provided, and the two first sprockets (51) are respectively connected to the two ends of the friction roller (7); Two second sprockets (52) are provided, and the two second sprockets (52) are respectively connected to the two ends of the raking roller (6); Two third sprockets (53) are provided, and the two third sprockets (53) are movably connected to two sides of the inner wall of the support frame (4) respectively; Two transmission chains (54) are provided, and the two transmission chains (54) are respectively connected to the first sprocket (51), the second sprocket (52) and the third sprocket (53) on both sides; The adjusting component (55) is arranged in the supporting frame (4), and both ends of the raking roller (6) are rotatably connected to the adjusting component (55); Two groups of follower assemblies (56) are provided, the fixed ends of the two groups of follower assemblies (56) are respectively connected to the two sides of the inner wall of the support frame (4), and the movable ends of the two groups of follower assemblies (56) are rotationally connected to the third sprocket (53).

4. The vertical mill feeding structure for cement production according to claim 1, characterized in that: The adjustment assembly (55) includes a movable frame (551), a threaded rod (552) and an adjustment hand wheel (553); The movable frame (551) is slidably connected to the inner wall of the support frame (4), and both ends of the raking roller (6) are rotatably connected to the inner wall of the movable frame (551); One end of the threaded rod (552) is rotatably connected to the movable frame (551), and the threaded rod (552) passes through the support frame (4) and is threadedly connected to the support frame (4); The adjusting hand wheel (553) is connected to one end of the threaded rod (552) located outside the support frame (4).

5. The vertical mill feeding structure for cement production according to claim 3, characterized in that: Each follower assembly (56) includes a fixing plate (561), an adjusting rod (562) and a connecting seat (563). The fixing plate (561) is connected to the inner wall of the support frame (4); The adjusting rod (562) passes through the fixing plate (561), and the adjusting rod (562) is threadedly connected to the fixing plate (561); The connecting seat (563) is slidably connected to the inner wall of the support frame (4), the third sprocket (53) is rotationally connected to the connecting seat (563), and one end of the adjusting rod (562) is rotationally connected to the connecting seat (563).

6. The vertical mill feeding structure for cement production according to claim 1, characterized in that: The driving mechanism (3) includes a driving motor (31) and a reduction gearbox (32); The reduction box (32) is connected to the mounting frame (1), and the output end of the reduction box (32) is transmission-connected to the conveyor belt (2); The driving motor (31) is connected to the reduction box (32), and the output end of the driving motor (31) is drivingly connected to the input end of the reduction box (32).

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