Coal blockage preventing device for coal flow scouring point of coal conveying system

Abstract

The utility model discloses a coal blocking prevention device for a coal flow scouring point of a coal conveying system, and particularly relates to the technical field of coal conveying systems, which comprises a coal dropping pipe, a spiral component mounted in the coal dropping pipe, two support frames fixedly connected to the outer side of the coal dropping pipe, a fixing ring communicated with the top end of the coal dropping pipe, and a blanking funnel fixedly connected to the upper surface of the fixing ring. A scraping mechanism is installed on the inner side of the discharging hopper, and one side of the fixing ring communicates with a connecting box. The spiral assembly comprises a first servo motor, the first servo motor is fixedly connected with one side of the coal falling pipe, and the output end of the first servo motor is fixedly connected with a rotating shaft. By arranging the spiral assembly and the scraping mechanism, the coal flow is kept in a continuous and stable flowing state, so that the conveying efficiency of the coal flow is improved, the coal flow can be prevented from being accumulated in the coal falling pipe, meanwhile, the coal flow can be kept in a flowing state, the residence time of the coal flow in the discharging hopper is shortened, and the coal conveying efficiency is improved. And the coal flow conveying efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of coal conveying system technology, and more specifically, to a coal flow scouring point anti-coal blockage device in a coal conveying system. Background Technology

[0002] A coal conveying system is a system used for transporting coal. It typically refers to a combination of equipment and facilities that transport coal from the mining site to the point of use, achieving safe, efficient, and economical transportation of coal to meet the energy needs of industrial production, civil use, and other sectors.

[0003] However, when the coal conveyor belt is transporting coal, the coal flow on the conveyor belt is unstable. When the coal passes through the coal drop pipe, the coal flow rate in the drop pipe is quite unstable and the pressure fluctuates greatly. It is easy for coal to be blocked at the coal drop pipe. Especially on rainy days, the coal is wetted by rainwater, and the adhesion between the coal increases, making it easier for coal to be blocked.

[0004] A search revealed that Chinese patent CN214933002U discloses an anti-blocking device for coal flow scouring points in a coal conveying system. In use, an external drive device is connected to a transmission gear to rotate the coal chute and the scraper inside the chute, thereby preventing coal blockage at the coal conveyor's inlet. This utility model has a simple structure, is easy to install, and can be assembled and disassembled as a whole, facilitating later maintenance and repair.

[0005] In actual use, when the coal flow scouring point of the above-mentioned coal conveying system contains large pieces of coal entering the coal chute, a single scraper is not convenient to evenly distribute the coal powder and impurities in the coal flow, resulting in excessively high coal powder concentration in some parts of the coal flow, increasing the risk of blockage. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a coal anti-blocking device at the coal flow scouring point of a coal conveying system to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A coal-blocking device for preventing coal flow scouring points in a coal conveying system includes a coal drop pipe, a spiral assembly installed inside the coal drop pipe, two support frames fixedly connected to the outside of the coal drop pipe, a fixed ring connected to the top of the coal drop pipe, a feeding funnel fixedly connected to the upper surface of the fixed ring, a scraping mechanism installed inside the feeding funnel, and a connecting box connected to one side of the fixed ring.

[0009] The spiral assembly includes a first servo motor, which is fixedly connected to one side of the coal chute. A rotating shaft is fixedly connected to the output end of the first servo motor. A protective cylinder is rotatably connected to the outside of the rotating shaft. The protective cylinder is fixedly connected to the inside of the coal chute. A first bevel gear is fixedly connected to one end of the rotating shaft. A fixed box is rotatably connected to the outside of the rotating shaft. The rotating shaft passes through the coal chute and extends into the inside of the fixed box. The fixed box is fixedly connected to the protective cylinder. A guide cone is fixedly connected to the upper surface of the fixed box. A second bevel gear and a third bevel gear mesh on the outside of the rotating shaft. The second bevel gear is positioned above the third bevel gear. A first connecting rod is fixedly connected to the top of the second bevel gear. Multiple first support rods are fixedly connected to the outside of the first connecting rod. A first spiral blade is fixedly connected to one end of each of the multiple first support rods. The first connecting rod is rotatably connected to the inside of the guide cone. A second connecting rod is fixedly connected to the bottom end of the third bevel gear. Both the first and second connecting rods are rotatably connected to the inside of the fixed box. Multiple second support rods are fixedly connected to the outside of the second connecting rod. A second spiral blade is fixedly connected to one end of each of the second support rods.

[0010] By adopting the above technical solution, the coal flow can be rapidly transported downwards through the spiral rotation of the first and second spiral blades, maintaining a continuous and stable flow state and improving the coal transport efficiency.

[0011] As a further description of the above technical solution: the scraping mechanism includes a second servo motor, the second servo motor is fixedly connected to the bottom end of one of the support frames, a gear is fixedly connected to the output end of the second servo motor, a gear is meshed with a toothed disc on one side of the gear, the toothed disc is rotatably connected to the inside of the fixed ring, and three scrapers are fixedly connected to the inner side of the toothed disc.

[0012] By adopting the above technical solution, the coal flow can be effectively prevented from accumulating inside the hopper by continuously scraping the inner wall of the feeding hopper with three scrapers, and the coal flow adhering to the inner wall of the feeding hopper can be scraped off.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. By setting up a spiral assembly, compared with the existing technology, the first and second spiral blades rotate in opposite directions, which can rotate the coal flow in the second servo motor in both directions. This can keep the coal flow in a continuous and stable state, thereby improving the conveying efficiency of the coal flow and helping to prevent the coal flow from accumulating in the coal drop pipe, thus reducing the risk of coal blockage.

[0015] 2. By setting up a scraping mechanism, compared with the existing technology, the three scrapers can continuously scrape the inner wall of the feeding hopper, which can effectively prevent the coal flow from accumulating inside the hopper, keep the coal flow in a flowing state, thereby avoiding the occurrence of blockage, reducing the residence time of the coal flow inside the feeding hopper, and helping to improve the conveying efficiency of the coal flow. 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 schematic diagram of the internal cross-sectional structure of the coal chute of this utility model.

[0018] Figure 3 This is a schematic diagram of the gear and gear disk structure of this utility model.

[0019] Figure 4 This is a partial structural diagram of the connection point of the first helical blade of this utility model.

[0020] Figure 5 This is a partial structural diagram of the connection point of the second helical blade of this utility model.

[0021] Figure 6 This is a schematic diagram of the inner structure of the feeding funnel of this utility model.

[0022] The attached diagram is labeled as follows: 1. Coal chute; 2. Support frame; 3. Fixing ring; 4. Feed hopper; 5. First servo motor; 6. Rotating shaft; 7. First bevel gear; 8. Fixing box; 9. Guide cone; 10. Second bevel gear; 11. First connecting rod; 12. First support rod; 13. First spiral blade; 14. Third bevel gear; 15. Second connecting rod; 16. Second support rod; 17. Second spiral blade; 18. Connecting box; 19. Second servo motor; 20. Gear; 21. Gear disc; 22. Scraper; 23. Protective cylinder. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The embodiments disclosed in this application are as follows: Figure 1-6The above describes a coal conveying system with a coal flow scouring point anti-blocking device, including a coal drop pipe 1, a spiral assembly installed inside the coal drop pipe 1, two support frames 2 fixedly connected to the outside of the coal drop pipe 1, a fixed ring 3 connected to the top of the coal drop pipe 1, a feeding funnel 4 fixedly connected to the upper surface of the fixed ring 3, a scraping mechanism installed inside the feeding funnel 4, and a connecting box 18 connected to one side of the fixed ring 3.

[0025] The spiral assembly includes a first servo motor 5, which is fixedly connected to one side of the coal drop pipe 1. A rotating shaft 6 is fixedly connected to the output end of the first servo motor 5. A protective cylinder 23 is rotatably connected to the outside of the rotating shaft 6, and the protective cylinder 23 is fixedly connected to the inside of the coal drop pipe 1. A first bevel gear 7 is fixedly connected to one end of the rotating shaft 6, and a fixed box 8 is rotatably connected to the outside of the rotating shaft 6. The rotating shaft 6 passes through the coal drop pipe 1 and extends into the inside of the fixed box 8. The fixed box 8 is fixedly connected to the protective cylinder 23. A guide cone 9 is fixedly connected to the upper surface of the fixed box 8. A second bevel gear 10 and a third bevel gear 14 mesh on the outside of the rotating shaft 6. The second bevel gear 10 is positioned above the third bevel gear 14. A first connecting rod 11 is fixedly connected to the top of the second bevel gear 10. Multiple first support rods 12 are fixedly connected to the outside of the first connecting rod 11. A first spiral blade 13 is fixedly connected to one end of each of the multiple first support rods 12. The first connecting rod 11 is rotatably connected to the inside of the guide cone 9. The bottom end of the third bevel gear 14 is fixedly connected to the second connecting rod 15. Both the first connecting rod 11 and the second connecting rod 15 are rotatably connected to the inside of the fixed box 8. Multiple second support rods 16 are fixedly connected to the outside of the second connecting rod 15. One end of the second support rod 16 is fixedly connected to the second spiral blade 17. By rotating the shaft 6, the second bevel gear 10 and the third bevel gear 14 can be meshed and rotated, so that the second bevel gear 10 can rotate clockwise and the third bevel gear 14 can rotate counterclockwise, so that the first spiral blade 13 and the second spiral blade 17 can rotate in opposite directions. The spiral action of the first spiral blade 13 and the second spiral blade 17 helps to keep the coal flow in a continuous and stable state, thereby improving the coal flow conveying efficiency and preventing the coal flow from accumulating on the inner wall of the coal drop pipe 1 and the feed hopper 4.

[0026] Reference Figure 3 As shown, the scraping mechanism includes a second servo motor 19, which is fixedly connected to the bottom of one of the support frames 2. A gear 20 is fixedly connected to the output end of the second servo motor 19. A gear disk 21 meshes with one side of the gear 20. The gear disk 21 is rotatably connected to the inside of the fixed ring 3. Three scrapers 22 are fixedly connected to the inside of the gear disk 21. The gear 20 meshes with the gear disk 21 to drive the gear disk 21 to rotate inside the fixed ring 3, so that the gear disk 21 drives the three scrapers 22 to rotate against the inner wall of the feeding hopper 4. This helps to prevent the coal flow from adhering to the inner wall of the feeding hopper 4 and also prevents the coal flow from accumulating inside the hopper, reducing the residence time of the coal flow inside the hopper and ensuring the stable operation of the coal conveying system.

[0027] Working principle of this utility model: This utility model designs an anti-coal-blocking device at the coal flow scouring point in a coal conveying system. The specific structure is shown in the attached instruction manual. Figure 1-6 As shown, in this technical solution, through the cooperation of various structures, when coal conveying is required, the feeding hopper 4 can be connected to the coal conveying port. Then, the first servo motor 5 and the second servo motor 19 are started sequentially. The second servo motor 19 drives the gear 20 to rotate, causing the gear 20 to mesh and drive the gear disc 21 to rotate inside the fixed ring 3. This allows the gear disc 21 to drive the three scrapers 22 to scrape inside the feeding hopper 4, effectively preventing coal from adhering to the inner wall of the feeding hopper 4. Simultaneously, the first servo motor 5 drives the rotating shaft 6 to rotate, causing the rotating shaft 6 to mesh and drive the first bevel gear 7, the second bevel gear 10, and the third bevel gear 14 to rotate, causing the second bevel gear 10 and the third bevel gear 14 to rotate in opposite directions. The rotation of the second bevel gear 10 can drive the first connecting rod 11 to rotate. The first connecting rod 11 can drive the first spiral blade 13 to rotate inside the feeding hopper 4 through the first support rod 12. The spiral action of the first spiral blade 13 can transport the coal inside the feeding hopper 4 downward, thereby reducing the accumulation of coal inside the feeding hopper 4. At the same time, the third bevel gear 14 can drive the second connecting rod 15 to rotate, so that the second connecting rod 15 drives the second spiral blade 17 to rotate through multiple second support rods 16. The spiral action of the second spiral blade 17 can accelerate the falling of coal inside the coal drop pipe 1, thereby enabling rapid coal transportation and helping to prevent coal from accumulating inside the coal drop pipe 1.

[0028] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0029] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are existing technologies and are therefore not shown in the figures and will not be described here.

[0030] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A coal flow flushing point anti-blocking device for a coal conveying system, comprising a coal drop pipe (1), characterized in that: The coal falling pipe (1) is internally provided with a spiral assembly, the coal falling pipe (1) is externally fixedly connected with two support frames (2), the coal falling pipe (1) is communicated with a fixed ring (3) at the top end, the fixed ring (3) is fixedly connected with a discharging hopper (4) on the upper surface, the discharging hopper (4) is internally provided with a scraping mechanism, the fixed ring (3) is communicated with a connecting box (18) on one side; The spiral assembly comprises a first servo motor (5), the first servo motor (5) is fixedly connected with the coal falling pipe (1) on one side, the first servo motor (5) is fixedly connected with a rotating shaft (6) at the output end, the rotating shaft (6) is rotatably connected with a protective cylinder (23) on the outside, the protective cylinder (23) is fixedly connected with the coal falling pipe (1) internally, the rotating shaft (6) is fixedly connected with a first bevel gear (7) at one end, the rotating shaft (6) is rotatably connected with a fixed box (8) on the outside, the rotating shaft (6) penetrates through the coal falling pipe (1) and extends into the fixed box (8) internally, the fixed box (8) is fixedly connected with the protective cylinder (23), and the fixed box (8) is fixedly connected with a guide cone (9) on the upper surface.

2. The coal flow scouring point anti-blocking device of the coal conveying system according to claim 1, characterized in that: The rotating shaft (6) is engaged with a second bevel gear (10) and a third bevel gear (14) on the outside, the second bevel gear (10) is arranged above the third bevel gear (14), the second bevel gear (10) is fixedly connected with a first connecting rod (11) at the top end, the first connecting rod (11) is fixedly connected with a plurality of first supporting rods (12) on the outside, one end of the plurality of first supporting rods (12) is fixedly connected with a first spiral blade (13), and the first connecting rod (11) is rotatably connected with the guide cone (9) internally.

3. The coal flow scouring point anti-blocking device of the coal conveying system according to claim 2, characterized in that: The third bevel gear (14) is fixedly connected with a second connecting rod (15) at the bottom end, and the first connecting rod (11) and the second connecting rod (15) are both rotatably connected with the fixed box (8) internally.

4. The coal flow scouring point anti-blocking device of the coal conveying system according to claim 3, characterized in that: The second connecting rod (15) is fixedly connected with a plurality of second supporting rods (16) on the outside, and one end of the second supporting rods (16) is fixedly connected with a second spiral blade (17).

5. The coal flow scouring point anti-blocking device of the coal conveying system according to claim 1, characterized in that: The scraping mechanism comprises a second servo motor (19), and the second servo motor (19) is fixedly connected with the bottom end of one of the support frames (2).

6. The coal flow scouring point anti-blocking device of the coal conveying system according to claim 5, characterized in that: The second servo motor (19) is fixedly connected with a gear (20) at the output end, and the gear (20) is engaged with a toothed disc (21) on one side.

7. The coal flow scouring point anti-blocking device of the coal conveying system according to claim 6, characterized in that: The toothed disc (21) is rotatably connected with the fixed ring (3) internally, and the toothed disc (21) is fixedly connected with three scrapers (22) on the inside.

Images