A cement vertical mill feeding structure

Abstract

This utility model relates to the field of cement processing technology, specifically to a cement vertical mill feeding structure, including a conveyor base and a dispersing device. The conveyor base has a feed hopper, and the feed hopper has a guide platform. A rotating plate is rotatably connected to the bottom of the guide platform. The dispersing device includes a first motor mounted on the feed hopper, a drive shaft and a driven shaft rotatably connected to the feed hopper, a first gear and a second gear coaxially mounted on the drive shaft and the driven shaft respectively, and multiple sets of dispersing structures equidistantly distributed along the axial direction. The first motor and the drive shaft are driven together, and the first gear and the second gear are meshed together. Each set of dispersing structures includes six dispersing blades arranged in a ring array. Each set of dispersing structures on the drive shaft and the driven shaft is alternately distributed and interleaved with each other. This utility model can efficiently disperse and pre-treat the fed material, avoiding the problem of material getting stuck at the feed inlet and ensuring the efficiency of cement processing.

Description

Technical Field

[0001] This utility model relates to the field of cement processing technology, and in particular to a cement vertical mill feeding structure. Background Technology

[0002] In modern cement production processes, vertical mills are widely used as high-efficiency grinding equipment. Their feeding structure plays a crucial role in raw material transportation, ensuring the stable and uniform feeding of cement raw materials into the mill through an optimized feeding system. This guarantees the continuity of the grinding process and production efficiency, making it a vital technical link between raw material pretreatment and grinding.

[0003] Chinese Patent CN218854524U discloses a feeding structure for a vertical mill in cement production. The structure includes a feeding cylinder with grooves on both its upper and lower end walls. A guide tube is installed at one end of the feeding cylinder. Spiral blades pass through the inside of the feeding cylinder, and a water inlet is installed on one end wall. A discharge port is installed at the lower right end of the feeding cylinder, and a feed inlet is installed at the upper left end. A motor is installed at the left end of the feeding cylinder, and a fixed base is installed at the bottom end. A seat bar passes through the end of the fixed base, and a connecting plate is installed on the outer side of the seat bar. Screws pass through the end wall of the connecting plate. This feeding mechanism rotates the plate shaft, causing the feed seat to rotate around the axis of the plate shaft, changing the tilt angle of the feed seat. Consequently, the tilt angle of the seat and the seat hole on the end side of the feed seat also changes accordingly. The seat hole, with its flexible tilt angle adjustment, achieves a higher matching degree when aligned with pre-set holes on the side walls and supports of vertical mills of different volumes, making it more convenient.

[0004] However, the above technical solution has the following shortcomings: when the feeding mechanism pours the material into the feed inlet, the cement raw material, especially components such as clay, may clump due to moisture or storage environment, which may cause the material to get stuck at the feed inlet and affect the subsequent processing efficiency. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a cement vertical mill feeding structure that can efficiently disperse and pre-treat the fed material, avoid the problem of material getting stuck at the feed inlet, and ensure the efficiency of cement processing.

[0006] The technical solution of this utility model is a cement vertical mill feeding structure, including a conveying seat and a dispersing device; a feeding hopper is provided on the conveying seat, a guide platform is provided on the feeding hopper, and a rotating plate is rotatably connected to the bottom of the guide platform; the dispersing device includes a first motor provided on the feeding hopper, a drive shaft and a driven shaft rotatably connected on the feeding hopper, a first gear and a second gear respectively coaxially provided on the drive shaft and the driven shaft, and multiple sets of dispersing structures equidistantly distributed along the axial direction; the first motor and the drive shaft are driven and connected, the first gear and the second gear are meshed and connected, and each set of dispersing structures includes six dispersing blades distributed in a ring array, and each set of dispersing structures on the drive shaft and the driven shaft is alternately distributed in sequence.

[0007] Preferably, a protective shell is provided on the feed hopper, and both the first gear and the second gear are located inside the protective shell.

[0008] Preferably, the inside of the feed hopper is provided with a support assembly that abuts against the rotating plate. The support assembly includes two fixed cylinders disposed on the feed hopper, a slide rod slidably connected to the fixed cylinders, and a spring disposed inside the fixed cylinders; the two ends of the spring are respectively disposed on the slide rod and the fixed cylinders.

[0009] Preferably, a ball is provided at the end of the slide bar away from the spring, and the ball and the rotating plate abut against each other.

[0010] Preferably, the slide bar is provided with two symmetrically distributed guide blocks, which are slidably disposed inside the fixed cylinder.

[0011] Preferably, the feed hopper is provided with two symmetrically distributed positioning blocks, and the conveyor seat is provided with a fixing component, with the positioning blocks embedded in the conveyor seat.

[0012] Preferably, the fixing assembly includes a limiting rod that passes through the conveyor seat, two mounting sleeves respectively fitted onto the ends of the limiting rod, and a plurality of fixing bolts that pass through the mounting sleeves and are threaded onto the conveyor seat; the positioning block is provided with a through hole that matches the cross-sectional size of the limiting rod.

[0013] Preferably, a base is provided on the side of the conveyor seat, a second motor is provided on the base, a rotating shaft is rotatably connected to the conveyor seat, a spiral blade is provided on the rotating shaft, the second motor and the rotating shaft are drivenly connected, and a feeding pipe is provided on the conveyor seat.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects:

[0015] This utility model uses a dispersing device to drive the dispersing blades to disperse the material. The structural design of the dispersing structures on both sides, which are interspersed and alternately distributed, improves the dispersing effect of the material. It avoids the cement raw material from clumping due to moisture or storage environment and getting stuck at the feed inlet, ensuring that the material enters the subsequent feeding and grinding stages smoothly and stably. It has good practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial cross-sectional schematic diagram of the feed hopper of this utility model;

[0018] Figure 3 for Figure 2 Axonometric schematic diagram of the middle structure;

[0019] Figure 4 This is a schematic diagram of the connection of the support component of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the fixing component of this utility model.

[0021] Reference numerals in the attached drawings: 1. Conveyor seat; 2. Feed hopper; 3. First motor; 4. Drive shaft; 5. Dispersing blade; 6. Driven shaft; 7. First gear; 8. Second gear; 9. Guide platform; 10. Rotating plate; 11. Fixed cylinder; 12. Slide rod; 13. Spring; 14. Guide block; 15. Top ball; 16. Positioning block; 17. Limiting rod; 18. Mounting sleeve; 19. Fixing bolt; 20. Protective shell; 21. Base; 22. Second motor; 23. Rotating shaft; 24. Spiral blade; 25. Feed pipe. Detailed Implementation

[0022] Example 1

[0023] like Figures 1-5 As shown, the cement vertical mill feeding structure proposed in this embodiment includes a conveying seat 1 and a dispersing device; a feeding hopper 2 is provided on the conveying seat 1, a guide platform 9 is provided on the feeding hopper 2, and a rotating plate 10 is rotatably connected to the bottom of the guide platform 9. The inside of the feeding hopper 2 is smooth and is ground flat after welding to eliminate any protrusions or steps that may cause material to stick.

[0024] The dispersing device includes a first motor 3 mounted on the feed hopper 2, a drive shaft 4 and a driven shaft 6 rotatably connected to the feed hopper 2, a first gear 7 and a second gear 8 coaxially mounted on the drive shaft 4 and the driven shaft 6 respectively, and multiple sets of dispersing structures equidistantly distributed along the axial direction; the first motor 3 and the drive shaft 4 are driven together, and the first gear 7 and the second gear 8 are meshed together. Each set of dispersing structures includes six dispersing blades 5 arranged in a ring array. Each set of dispersing structures on the drive shaft 4 and the driven shaft 6 is alternately distributed and interspersed with each other. The rotating plate 10 is located between the drive shaft 4 and the driven shaft 6. When the material falls, the blocky material will fall exactly between the dispersing blades 5 on both sides to ensure the dispersing effect.

[0025] The feed hopper 2 is equipped with a protective shell 20. The first gear 7 and the second gear 8 are both located inside the protective shell 20. The protective shell 20 is used to protect the gear structure.

[0026] In this embodiment, after the material is conveyed into the inside of the feed hopper 2, the first motor 3 drives the drive shaft 4 to rotate. The drive shaft 4 drives the first gear 7 to rotate. The meshing transmission of the first gear 7 and the second gear 8 causes the driven shaft 6 to rotate in the opposite direction to the drive shaft 4. In turn, the drive shaft 4 and the driven shaft 6 drive the multiple sets of dispersing structures on them to rotate relative to each other. The structural design of the dispersing structures on both sides interlacing and alternating can play a good role in dispersing the falling material, avoiding the cement raw material from clumping due to moisture or storage environment and getting stuck at the feed inlet. This ensures that the material enters the subsequent feeding and grinding stages smoothly and stably, which has good practicality.

[0027] Example 2

[0028] like Figure 2 and Figure 4 As shown in the figure, the cement vertical mill feeding structure proposed in this embodiment has the following differences compared to the first embodiment. In this embodiment, the feed hopper 2 is provided with a support assembly that abuts against the rotating plate 10. The support assembly includes two fixed cylinders 11 on the feed hopper 2, a slide rod 12 slidably connected to the fixed cylinders 11, and a spring 13 inside the fixed cylinders 11. The two ends of the spring 13 are respectively provided on the slide rod 12 and the fixed cylinder 11. A top ball 15 is provided at the end of the slide rod 12 away from the spring 13. The top ball 15 abuts against the rotating plate 10.

[0029] Two symmetrically distributed guide blocks 14 are provided on the slide rod 12. The guide blocks 14 are slidably disposed inside the fixed cylinder 11. The guide blocks 14 guide and limit the movement of the slide rod 12, and can also prevent the spring 13 from bending or twisting.

[0030] In this embodiment, each time material is fed, it is poured onto the guide platform 9 and then slides down under its own weight, squeezing the rotating plate 10. The rotating plate 10 rotates, causing the material to enter the inside of the feed hopper 2. At the same time, the rotating plate 10 abuts against the top ball 15, pushing the slide rod 12. The slide rod 12 slides into the inside of the fixed cylinder 11 through the compression spring 13. After the material enters, the slide rod 12 moves back under the action of the spring 13. The top ball 15 causes the rotating plate 10 to cover the feed port, preventing dust from escaping too quickly and affecting the working environment. In addition, a water mist spraying device can be set near the feed port to further remove dust.

[0031] Example 3

[0032] like Figure 1 and Figure 5As shown in the figure, the cement vertical mill feeding structure proposed in this embodiment has two symmetrically distributed positioning blocks 16 on the feeding hopper 2 and a fixing component on the conveying seat 1. The positioning blocks 16 are embedded in the conveying seat 1. The fixing component includes a limiting rod 17 that penetrates the conveying seat 1, two mounting sleeves 18 that are respectively sleeved on the ends of the limiting rod 17, and a plurality of fixing bolts 19 that penetrate the mounting sleeves 18 and are threadedly connected to the conveying seat 1. The positioning blocks 16 are provided with through holes that are adapted to the cross-sectional dimensions of the limiting rod 17.

[0033] In this embodiment, when the feed hopper 2 needs to be installed, first insert the bottom of the feed hopper 2 into the conveyor seat 1, and at the same time, embed the positioning block 16 into the conveyor seat 1. Then, the limiting rod 17 passes through the conveyor seat 1 and the positioning block 16. Next, the mounting sleeve 18 is fitted onto both ends of the limiting rod 17. Finally, the multiple fixing bolts 19 are screwed into the corresponding threaded holes. The operation is simple, so that the structural components on the feed hopper 2 can be inspected and replaced later.

[0034] Example 4

[0035] like Figure 1 As shown in the figure, the cement vertical mill feeding structure proposed in this embodiment has the following features compared to Embodiment 1: a base 21 is provided on the side of the conveying seat 1, a second motor 22 is provided on the base 21, a rotating shaft 23 is rotatably connected to the conveying seat 1, a spiral blade 24 is provided on the rotating shaft 23, the second motor 22 and the rotating shaft 23 are drivenly connected, and a discharge pipe 25 is provided on the conveying seat 1.

[0036] In this embodiment, the second motor 22 drives the rotating shaft 23 to rotate, and the rotating shaft 23 drives the spiral blade 24 to rotate, thereby conveying the material inside the conveying seat 1, and finally conveying it into the vertical mill through the feeding pipe 25.

[0037] It should be noted that the feeding structure will be equipped with dust removal equipment at the inlet and outlet to ensure that the working environment meets the usage requirements.

[0038] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A cement vertical mill feeding structure, characterized in that, include: A conveyor seat (1) is provided with a feeding hopper (2), and a guide platform (9) is provided on the feeding hopper (2). A rotating plate (10) is rotatably connected to the bottom of the guide platform (9). The dispersing device includes a first motor (3) mounted on the feed hopper (2), a drive shaft (4) and a driven shaft (6) rotatably connected to the feed hopper (2), a first gear (7) and a second gear (8) coaxially mounted on the drive shaft (4) and the driven shaft (6), and multiple sets of dispersing structures equidistantly distributed along the axial direction; the first motor (3) and the drive shaft (4) are driven and connected, the first gear (7) and the second gear (8) are meshed and connected, and each set of dispersing structures includes six dispersing blades (5) arranged in a ring array. Each set of dispersing structures on the drive shaft (4) and the driven shaft (6) is interspersed and alternately distributed.

2. The cement vertical mill feeding structure according to claim 1, characterized in that, A protective shell (20) is provided on the feed hopper (2), and the first gear (7) and the second gear (8) are both located inside the protective shell (20).

3. The cement vertical mill feeding structure according to claim 1, characterized in that, The feed hopper (2) is provided with a support assembly that abuts against the rotating plate (10). The support assembly includes two fixed cylinders (11) on the feed hopper (2), a slide rod (12) slidably connected to the fixed cylinder (11), and a spring (13) inside the fixed cylinder (11). The two ends of the spring (13) are respectively set on the slide rod (12) and the fixed cylinder (11).

4. The cement vertical mill feeding structure according to claim 3, characterized in that, A ball (15) is provided at the end of the slide bar (12) away from the spring (13), and the ball (15) and the rotating plate (10) abut against each other.

5. The cement vertical mill feeding structure according to claim 3, characterized in that, Two symmetrically distributed guide blocks (14) are provided on the slide rod (12), and the guide blocks (14) are slidably disposed inside the fixed cylinder (11).

6. The cement vertical mill feeding structure according to claim 1, characterized in that, Two symmetrically distributed positioning blocks (16) are provided on the feed hopper (2), and a fixing component is provided on the conveyor seat (1). The positioning blocks (16) are embedded in the conveyor seat (1).

7. The cement vertical mill feeding structure according to claim 6, characterized in that, The fixing assembly includes a limiting rod (17) that passes through the conveyor seat (1), two mounting sleeves (18) that are respectively sleeved on the ends of the limiting rod (17), and a plurality of fixing bolts (19) that pass through the mounting sleeves (18) and are threaded onto the conveyor seat (1); the positioning block (16) is provided with a through hole that matches the cross-sectional size of the limiting rod (17).

8. The cement vertical mill feeding structure according to claim 1, characterized in that, A base (21) is provided on the side of the conveyor seat (1), a second motor (22) is provided on the base (21), a rotating shaft (23) is rotatably connected to the conveyor seat (1), a spiral blade (24) is provided on the rotating shaft (23), the second motor (22) and the rotating shaft (23) are driven to connect, and a feed pipe (25) is provided on the conveyor seat (1).

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