Pelletizing disc edge scraping device

Abstract

The utility model relates to a disc edge scraping device for a pellet pelletizing disc, and belongs to the technical field of pellet production in the metallurgical industry. According to the technical scheme, according to the material scraping sequence, an inclined material scraping plate (10) and a straight material scraping plate (11) are sequentially arranged on the edge of a pelletizing disc (3), a certain included angle is formed between the inclined material scraping plate (10) and the pelletizing disc (3), the straight material scraping plate (11) is perpendicular to the pelletizing disc (3), the inclined material scraping plate (10) is connected to the lower end of an inclined material scraping plate pull rod (9) through a rib plate, and the inclined material scraping plate pull rod (9) is connected with the straight material scraping plate (11). The upper end of the inclined scraping plate pull rod (9) is rotationally connected to the suspension frame (5) through a rotating shaft (7), the straight scraping plate (11) is connected to the lower end of the straight scraping plate pull rod (8) through a rib plate, and the upper end of the straight scraping plate pull rod (8) is connected to the suspension frame (5). The device has the advantages that accumulated materials on the edge of the pelletizing disc can be cleaned in real time, and materials and green pellets moving upwards along with the pelletizing disc are effectively blocked.

Description

Technical Field

[0001] This utility model relates to a scraping device for the edge of a pelletizing pan, belonging to the field of pellet production technology in the metallurgical industry. Background Technology

[0002] During the pelletizing process, the material inside the pelletizing disc rotates to complete several stages, including mother pellet formation, pellet growth, and pelletization. Due to differences in material properties and moisture content, the resulting green pellets vary in size, mainly ranging from 8-16mm. Some larger and smaller green pellets may be ejected from the disc. Uneven moisture content and variations in the viscosity of the refined powder can cause material to stick to the disc edges, affecting the downward discharge of finished green pellets, thus impacting the quality and yield of green pellets, and also causing wear and tear on the pelletizing disc equipment.

[0003] The existing disc edge scraper uses a single baffle to clean material adhering to the disc edge, relying on its own gravity for reverse cleaning. When the disc edge becomes uneven due to material adhering to it, the scraper bounces up, failing to scrape effectively and causing a large amount of material to spill below the ball disc. Furthermore, the left-right fixing method makes it easy for the scraper to detach from the disc edge, jamming the disc rim and damaging the side lining of the ball disc. The scraper is made of nylon lining, which has high hardness, and the ball disc edge is made of curved nylon lining spliced ​​together. When the scraper reaches the joint, it easily causes the disc edge to warp and become damaged. During the production process, the ball disc is used frequently, and the scraper uses a through-hole screw fixing method, which, due to the material, has a short service life and is difficult to replace after wear. The width of the scraper baffle is the same as the width of the disc rim; iron powder lifted by centrifugal force will be thrown out of the ball disc, increasing the wet return rate. Utility Model Content

[0004] The purpose of this invention is to provide a scraping device for the edge of a pelletizing pan, which can clean up the accumulated material on the edge of the pelletizing pan in real time, effectively blocking the material and green pellets moving upward with the pelletizing pan, and solving the problems existing in the background art.

[0005] The technical solution of this utility model is:

[0006] A pelletizing disc edge scraping device includes a pelletizing disc, a suspension frame, a rotating shaft, a straight scraper rod, an inclined scraper rod, an inclined scraper, and a straight scraper. The inclined scraper and the straight scraper are sequentially arranged on the edge of the pelletizing disc according to the scraping sequence. The inclined scraper forms a certain angle with the pelletizing disc, and the straight scraper is arranged perpendicular to the pelletizing disc. The inclined scraper is connected to the lower end of the inclined scraper rod via a reinforcing rib, and the upper end of the inclined scraper rod is rotatably connected to the suspension frame via the rotating shaft. The straight scraper is connected to the lower end of the straight scraper rod via a reinforcing rib, and the upper end of the straight scraper rod is connected to the suspension frame.

[0007] A vertically arranged straight scraper sleeve is fixed on the suspension frame, and the upper end of the straight scraper tie rod is inserted into the straight scraper sleeve.

[0008] The straight scraper sleeve is fixed to the suspension frame by stiffening plates.

[0009] The inclined scraper is one piece, and the straight scraper is two pieces arranged one after the other.

[0010] The angle between the inclined scraper and the pelletizing disc is 15-45 degrees.

[0011] The suspension frame is a frame structure consisting of two longitudinal frame beams and several transverse frame beams connected together.

[0012] The beneficial effects of this utility model are: it can clean up the accumulated material on the edge of the pelletizing pan in real time, effectively blocking the material and raw pellets moving upward with the pelletizing pan. The wider scraper can also change the path of the upward material, control the overflow of material in the pan, greatly reduce the labor intensity of the work, and effectively reduce the return rate of pelletizing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the working state of this utility model;

[0014] Figure 2 This is a front view of the present utility model;

[0015] Figure 3 This is a side view of the present invention;

[0016] In the diagram: 1. Bulk trough, 2. Ball forming plate edge scraping device, 3. Ball forming plate, 4. Water filling beam, 5. Suspension frame, 6. Straight scraper sleeve, 7. Rotating shaft, 8. Straight scraper tie rod, 9. Inclined scraper tie rod, 10. Straight scraper, 11. Straight plate stiffener, 12. Connecting bolt, 13. Frame longitudinal beam, 14. Frame transverse beam. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and examples.

[0018] See attached document Figure 1-3 A pelletizing disc edge scraping device includes a pelletizing disc 3, a suspension frame 5, a rotating shaft 7, a straight scraper rod 8, an inclined scraper rod 9, an inclined scraper 10, and a straight scraper 11. The inclined scraper 10 and the straight scraper 11 are sequentially arranged on the edge of the pelletizing disc 3 according to the scraping sequence. The inclined scraper 10 forms a certain angle with the pelletizing disc 3, and the straight scraper 11 is arranged perpendicular to the pelletizing disc 3. The inclined scraper 10 is connected to the lower end of the inclined scraper rod 9 via a reinforcing rib. The upper end of the inclined scraper rod 9 is rotatably connected to the suspension frame 5 via the rotating shaft 7. The straight scraper 11 is connected to the lower end of the straight scraper rod 8 via a reinforcing rib, and the upper end of the straight scraper rod 8 is connected to the suspension frame 5.

[0019] In this embodiment, refer to the appendix Figure 1-3 The edge scraping device includes a pelletizing disc 3, a water-filling crossbeam 4, a suspension frame 5, a straight scraper sleeve 6, a rotating shaft 7, a straight scraper tie rod 8, an inclined scraper tie rod 9, an inclined scraper 10, a straight scraper 11, a stiffening plate 12, connecting bolts 13, a frame longitudinal beam 14, and a frame crossbeam 15, wherein:

[0020] The suspension frame 5 is welded together from two longitudinal beams 14 and three transverse beams 15. The two longitudinal beams 14 are made of 700mm*200mm I-beams, and the three transverse beams 15 are made of 400mm*200mm I-beams.

[0021] Straight scraper sleeves 6 are welded to the first and third crossbeams 15 respectively, and are connected by stiffening plates 12. The stiffening plates 12 are 200mm*100mm flat steel, and the straight scraper sleeves 6 are φ50mm stainless steel pipes.

[0022] The straight scraper plate 11 is made from old belts, which is waste-utilizing, wear-resistant, and tough. There are two straight scraper plates 11, which are fixed to a straight scraper plate tie rod 8 by stiffeners. The upper end of the straight scraper plate tie rod 8 is inserted into the straight scraper plate sleeve 6. The straight scraper plate tie rod 8 is φ50mm, the stiffener is 100mm*50mm flat steel, and the rubber of the straight scraper plate 11 is 100mm*50mm. The straight scraper plate 11 is arranged perpendicular to the pelletizing plate 3.

[0023] The inclined scraper 10 is made from a recycled belt, utilizing waste materials and being durable and resilient. It is fixed to one end of the inclined scraper pull rod 9 by a reinforcing rib, and the other end of the pull rod 9 is connected to the rotating shaft 7, which is rotatably connected to the suspension frame 5. The inclined scraper pull rod 9 is made of φ50mm*800mm round steel, the reinforcing rib is made of 300mm*50mm flat steel, and the rubber sheet of the inclined scraper 10 is 300mm*50mm. The angle between the inclined scraper 10 and the turntable 3 is 15-45 degrees. The inclined scraper 10 and the ball disc 3 push in opposite directions, facilitating the removal of adhering material.

[0024] During the pelletizing process, the inclined scraper 10 first uses gravity to scrape off most of the material adhering to the edge of the pelletizing pan. Then, the two straight scraper 11 clean up the remaining material, cleaning up the accumulated material on the edge of the pelletizing pan in real time. This effectively blocks the material and raw pellets moving upward with the pelletizing pan, thereby reducing the return rate of the pelletizing process.

Claims

1. A pan edge scraper for a balling pan, the pan edge scraper comprising: The system includes a pelletizing disc (3), a suspension frame (5), a rotating shaft (7), a straight scraper rod (8), an inclined scraper rod (9), an inclined scraper (10), and a straight scraper (11). According to the order of scraping, the inclined scraper (10) and the straight scraper (11) are arranged sequentially on the edge of the pelletizing disc (3). The inclined scraper (10) forms a certain angle with the pelletizing disc (3), and the straight scraper (11) is arranged perpendicular to the pelletizing disc (3). The inclined scraper (10) is connected to the lower end of the inclined scraper rod (9) through a stiffener. The upper end of the inclined scraper rod (9) is rotatably connected to the suspension frame (5) through the rotating shaft (7). The straight scraper (11) is connected to the lower end of the straight scraper rod (8) through a stiffener. The upper end of the straight scraper rod (8) is connected to the suspension frame (5).

2. A disc edge material scraping device for a balling disc according to claim 1, characterised in that: A vertically arranged straight scraper sleeve (6) is fixed on the suspension frame (5), and the upper end of the straight scraper pull rod (8) is inserted into the straight scraper sleeve (6).

3. A disc edge material scraping device for a balling disc according to claim 2, characterised in that: The straight scraper sleeve (6) is fixed to the suspension frame (5) by stiffeners.

4. A disc edge material scraping device for a balling disc according to claim 1 or 2, characterised in that: The inclined scraper (10) is one piece, and the straight scraper (11) consists of two pieces arranged one after the other.

5. A disc edge material scraping device for a balling disc according to claim 1, characterized in that: The angle between the inclined scraper (10) and the pelletizing plate (3) is 15-45 degrees.

6. A disc edge material scraping device for a balling disc according to claim 1, characterized in that: The suspension frame (5) is a frame structure consisting of two frame longitudinal beams (14) and several frame transverse beams (15) connected together.

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