A device for unclogging a feed inlet

Abstract

This utility model relates to the field of unclogging technology for feed inlets, and more particularly to a device for unclogging feed inlets, including a cyclone drum. A feed cylinder is rotatably connected to the output end of the cyclone drum, and a rotating ring is rotatably connected to the output end of the feed cylinder. The rotating ring is equipped with a scraper for scraping material from the inner wall of the feed cylinder. Multiple scraping teeth are evenly spaced on the scraper, and these teeth are in contact with the inner wall of the feed cylinder. The device also includes a driving assembly for driving the feed cylinder and the rotating ring to rotate in opposite directions. By setting scraping teeth on the scraper, the contact area between the scraping teeth and the material is small during the scraping of the inner wall of the feed cylinder, resulting in greater pressure. This facilitates the continuous embedding of the scraping teeth into the material, effectively agitating it. Simultaneously, the dynamic environment created by the counter-rotating feed cylinder and the rotating ring allows the scraped material to be thrown away from the vicinity of the feed cylinder more quickly, reducing material re-adhesion.

Description

Technical Field

[0001] This utility model relates to the field of unblocking discharge ports, and in particular to a device for unblocking discharge ports. Background Technology

[0002] The coal mill cyclone separator used in cement production is an important component of the coal mill system. Its main function is to separate the coal powder from the gas after grinding by the coal mill. However, when there is a large amount of fine coal powder, the internal friction between these fine coal powders is large, which easily leads to agglomeration. Moreover, if the coal powder has a high moisture content, water molecules will form liquid bridges on the surface of the coal powder particles, increasing the adhesion between the particles. This can cause blockage at the discharge port. If the discharge port of the coal mill cyclone separator is blocked, the coal powder cannot pass through the discharge port smoothly into the subsequent conveying equipment or storage device, which will lead to the interruption of material conveying in the entire coal mill system, thereby affecting the continuity of cement production and making the production process unable to proceed normally.

[0003] Currently, to prevent blockages at the feed inlet, a clearing device is typically used. Commonly, these devices employ a rotating scraper inside the inlet to agitate its sidewalls, disrupting the flow of coal dust and reducing blockage. However, existing scrapers generally have a planar contact with the inner wall of the cyclone separator. When encountering stubborn coal dust accumulation, the planar scraper cannot generate sufficient pressure to effectively penetrate the material layer. This results in limited effectiveness in removing stubbornly adhered coal dust. Furthermore, simply rotating the scraper does not effectively reduce the re-adhesion of coal dust. Therefore, based on these considerations, a new feed inlet clearing device needs to be designed to address these issues. Utility Model Content

[0004] This utility model provides a discharge port unblocking device to solve the problem that in the prior art, the contact between the scraper and the inner wall of the cyclone is generally planar, with low pressure, which has limited effect on scraping off stubborn coal powder. Moreover, the simple rotation of the scraper cannot effectively reduce the problem of coal powder re-adhesion.

[0005] The technical problem solved by this utility model is achieved by the following technical solution:

[0006] A discharge port unblocking device includes a cyclone drum, the output end of which is rotatably connected to a discharge cylinder, and the output end of which is rotatably connected to a rotating ring. The rotating ring is provided with a scraper for scraping material off the inner wall of the discharge cylinder. The scraper is provided with a plurality of equally spaced scraping teeth that are in contact with the inner wall of the discharge cylinder. The device also includes a driving assembly for driving the discharge cylinder and the rotating ring to rotate in opposite directions, thereby dynamically scraping off the material adhering to the inner wall of the discharge cylinder.

[0007] Preferably, the drive assembly includes two gear rings respectively disposed on the outer wall of the feed cylinder and the outer wall of the rotating ring, two gears respectively meshing with the two gear rings, and two motors disposed on the cyclone. The output ends of the two motors are respectively connected to the two gears through rotating rods, and the two gears rotate in opposite directions.

[0008] Preferably, the number of scrapers is at least two, and the scraping teeth on at least two scrapers are arranged alternately.

[0009] Preferably, the scraper is provided with a shoveling part for shoveling up the material adhering to the inner wall of the feed cylinder, and the shoveling part is located at the front end in the direction of rotation of the scraper.

[0010] Preferably, the scraper has multiple conical tips on one side with the shoveling part for loosening materials.

[0011] Preferably, the inner wall of the cyclone is provided with a baffle plate.

[0012] The beneficial effects of this utility model are as follows: by setting scraper teeth on the scraper, the contact area between the scraper teeth and the material is small during the scraping process of the inner wall of the feeding cylinder, which generates greater pressure. This makes it easier for the scraper teeth to continuously embed into the material and effectively agitate it. At the same time, the dynamic environment generated by the reverse rotating feeding cylinder and the rotating ring can make the scraped material be thrown away from the area near the feeding cylinder more quickly, which can reduce the re-adhesion of the material. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the isometric structure provided by this utility model;

[0015] Figure 2 A front view structural schematic diagram provided for this utility model;

[0016] Figure 3 Schematic diagram of the cross-sectional structure provided by this utility model Figure 1 ;

[0017] Figure 4 Schematic diagram of the cross-sectional structure provided by this utility model Figure 2 ;

[0018] Figure 5 This utility model Figure 4A magnified structural diagram of A in the middle.

[0019] In the diagram, 1 is the cyclone separator; 2 is the feed cylinder; 3 is the rotating ring; 4 is the scraper; 5 is the scraper tooth; 61 is the gear ring; 62 is the gear; 63 is the motor; 7 is the rotating rod; 8 is the shovel; 9 is the cone tip; and 10 is the baffle plate. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0021] Reference Figures 1-5 As shown, a discharge port unblocking device includes a cyclone 1 and a drive assembly. A discharge cylinder 2 is rotatably connected to the output end of the cyclone 1, and a rotating ring 3 is rotatably connected to the output end of the discharge cylinder 2. In use, the drive assembly drives the discharge cylinder 2 and the rotating ring 3 to rotate in opposite directions. At the same time, the rotating ring 3 drives the scraper 4 connected to it to rotate on the inner wall of the discharge cylinder 2. During rotation, multiple scraping teeth 5 evenly spaced on the scraper 4 come into contact with the inner wall of the discharge cylinder 2. At this time, the contact area between the scraping teeth 5 and the inner wall of the discharge cylinder 2 becomes smaller. Under the same force, the scraper... The pressure of the tooth 5 increases, and this high local pressure allows the scraper tooth 5 to easily penetrate the material accumulation layer, which is very effective for cleaning stubborn material accumulation. At the same time, the scraper 4 and the feed cylinder 2 also rotate in opposite directions, which significantly increases the shearing force of the scraper tooth 5 on the material. The dynamic environment generated by the reverse rotation can make the scraped material be thrown away from the vicinity of the cylinder wall more quickly, reducing the possibility that the scraped material may re-adhere to the inner wall of the feed cylinder 2 due to gravity or inertia, thus realizing the dynamic scraping of the material attached to the inner wall of the feed cylinder 2.

[0022] Reference Figures 1-4 As shown, further, in order to enable the feeding cylinder 2 and the rotating ring 3 to rotate in opposite directions, the drive assembly includes two gear rings 61 respectively disposed on the outer wall of the feeding cylinder 2 and the outer wall of the rotating ring 3, two gears 62 respectively meshing with the two gear rings 61, and two motors 63 disposed on the cyclone 1. The output ends of the two motors 63 are respectively connected to the two gears 62 through the rotating rod 7, and the rotation directions of the two motors 63 are set to be opposite, thereby causing the rotation directions of the two gears 62 to be opposite. In turn, the two gear rings 61 meshing with them drive the feeding cylinder 2 and the rotating ring 3 to move in opposite directions. In actual use, the speed of the motors 63 and whether the two gears 62 rotate simultaneously can be set as needed, making it more flexible to use.

[0023] Reference Figures 3-4As shown, further, there are at least two scrapers 4, and the scraping teeth 5 on the at least two scrapers 4 are staggered. When the at least two scrapers 4 rotate, when the first scraper 4 scrapes the inner wall of the feed cylinder 2, a gap will appear between the two adjacent scraping teeth 5, and the material in the gap will continue to adhere to the inner wall of the feed cylinder 2. At this time, when the other scraper 4 rotates, the scraping teeth 5 on it can just scrape off the material remaining on the previous scraper 4.

[0024] Reference Figures 3-5 As shown, further, the scraper 4 is provided with a shovel 8 for shoveling up the material adhering to the inner wall of the feed cylinder 2. When the scraper 4 rotates, the shovel 8 is located at the front end of the scraper 4 in the direction of rotation. The shovel 8 is thinner in front of its direction of movement, which can effectively shovel up the material adhering to the inner wall of the feed cylinder 2, so that the adhering coal powder falls off, which is conducive to the scraper 4 continuously scraping the inner wall of the feed cylinder 2.

[0025] The scraper 4 has multiple cone tips 9 on one side of the scraper 4 with shovel 8 for loosening materials. As the scraper 4 rotates, the shovel 8 shovels the adhering materials, and the tips of the cone tips 9 also insert into the clumps of materials. As the scraper 4 continues to move, it will drive the cone tips 9 to stir inside the materials. This stirring will destroy the interaction force between the material particles, making the originally tightly packed materials loose.

[0026] Reference Figures 3-4 As shown, the inner wall of the cyclone 1 is provided with a baffle plate 10. Some springs can be set inside the baffle plate 10 to facilitate the squeezing force of the springs so that the baffle plate 10 can fit with the feed cylinder 2, reducing the material entering the connection gap between the cyclone 1 and the feed cylinder 2, and avoiding affecting the rotation of the feed cylinder 2.

Claims

1. A de-clogging device for a material discharge opening, comprising a cyclone barrel (1), characterized in that, The output end of the cyclone (1) is rotatably connected to the feed cylinder (2), and the output end of the feed cylinder (2) is rotatably connected to the rotating ring (3). The rotating ring (3) is provided with a scraper (4) for scraping the material from the inner wall of the feed cylinder (2). The scraper (4) is provided with multiple scraping teeth (5) at equal intervals. The scraping teeth (5) are in contact with the inner wall of the feed cylinder (2). The rotating ring (3) is also provided with a drive assembly for driving the feed cylinder (2) and the rotating ring (3) to rotate in opposite directions, so as to realize the dynamic scraping of the material attached to the inner wall of the feed cylinder (2).

2. The discharge port unblocking device according to claim 1, characterized in that, The drive assembly includes two gear rings (61) respectively disposed on the outer wall of the feed cylinder (2) and the outer wall of the rotating ring (3), two gears (62) respectively meshing with the two gear rings (61), and two motors (63) disposed on the cyclone cylinder (1). The output ends of the two motors (63) are respectively connected to the two gears (62) through the rotating rod (7), and the two gears (62) rotate in opposite directions.

3. The discharge port unblocking device according to claim 1, characterized in that, The number of scrapers (4) is at least two, and the scraping teeth (5) on at least two scrapers (4) are staggered.

4. The discharge port unblocking device according to claim 1, characterized in that, The scraper (4) is provided with a shovel (8) for shoveling up the material attached to the inner wall of the feed cylinder (2), and the shovel (8) is located at the front end of the scraper (4) in the rotation direction.

5. The discharge port unblocking device according to claim 4, characterized in that, The scraper (4) has a shovel (8) on one side and multiple cone tips (9) for loosening materials.

6. The discharge port unblocking device according to claim 1, characterized in that, The inner wall of the cyclone (1) is provided with a baffle plate (10).

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