Belt type feeding mechanism

Abstract

The utility model discloses a belt type feeding mechanism, which belongs to the technical field of blast furnace feeding equipment, and comprises support frames which are symmetrically and uniformly distributed, a middle fixing plate is fixedly connected to the top walls of the support frames, and the belt type feeding mechanism further comprises L-shaped blocks which are symmetrically and fixedly connected to the two ends of the middle fixing plate, the two ends, away from the middle fixing plate, of the L-shaped blocks are rotationally connected with symmetrically-distributed convex rollers. The adjustable supporting assembly comprises a fixing frame fixedly connected to the outer wall of the middle fixing plate; according to the feeding device, the sliding columns are pushed to move upwards all the time through the strong elastic effect of the strong springs, then the cleaning plates are driven to extrude the feeding belt upwards, raw materials retained on the feeding belt are scraped through the cleaning plates, the cleaning plates are arranged to be multiple sets and can be scraped and cleaned repeatedly, and residual raw materials are avoided; the detained raw materials are prevented from abrading equipment and the feeding speed is delayed.

Description

Technical Field

[0001] This utility model relates to the technical field of blast furnace charging equipment, and in particular to a belt-type charging mechanism. Background Technology

[0002] Sintering is a common method for preparing iron ore powder. It typically involves mixing iron ore, coke powder, and other additives, then sintering them in a high-temperature environment to bind the particles into a blocky ore. Sintered ore possesses high mechanical strength and wear resistance, making it suitable for use in smelting equipment such as blast furnaces. Blast furnace smelting is an important metallurgical process used to extract metals, alloys, and other useful substances. A blast furnace is a large reactor used to extract pig iron and other metallic alloys from iron ore and fuel. The blast furnace feedstock is transported to the furnace via three main conveyor belts: one for the main ore, one for the main coke, and one for the top of the furnace, used for charging operations during smelting.

[0003] A search revealed a Chinese patent with authorization number CN204938102U, which discloses a blast furnace charging belt conveyor, including rollers, support rollers, and a belt. The rollers include a driving roller and a driven roller, and the support rollers are divided into upper support rollers and lower support rollers, with the upper support roller being a V-shaped roller. The aforementioned patent's blast furnace charging belt conveyor has the following shortcomings: 1. Blast furnace charging is divided into main ore under the trough, main coke, and main belt at the furnace top, etc. The different amounts of raw materials that the belt width can accommodate during different steps affect the motor power, the production demand at the same time, and the charging speed coordination. The idlers in this device cannot be angled, meaning the width of the supported belt cannot be adjusted, and flexible adjustments cannot be made according to requirements; 2. This device lacks a structure for cleaning raw materials trapped on the belt, which easily leads to belt damage, accelerated equipment wear, increased belt running resistance, affects the charging speed, and slows down the smelting process. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the prior art where the capacity of raw materials transported by belts cannot be flexibly adjusted as needed and where there is a lack of cleaning structures to clean the raw materials stuck on the belts. Therefore, a belt-type feeding mechanism is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A belt-type feeding mechanism includes a support frame, the support frame being symmetrically and evenly distributed, and a middle fixing plate being fixedly connected to the top wall of the support frame. It also includes:

[0007] L-shaped blocks are symmetrically fixed to both ends of a middle fixed plate, and symmetrically distributed convex rollers are rotatably connected to the two ends of the L-shaped blocks away from the middle fixed plate.

[0008] An adjustable support assembly includes a fixed frame fixedly connected to the outer wall of a middle fixed plate, and the fixed frames are symmetrically distributed. A slider is slidably connected to the inner wall of the fixed frame. An L-shaped plate is symmetrically fixedly connected to the outer wall of the slider. A folding frame is rotatably connected to the end of the L-shaped plate away from the slider. A rotating plate is rotatably connected to the end of the folding frame away from the L-shaped plate. Two sets of rotating plates are symmetrically distributed and rotatably connected to each other. A first support seat is fixedly connected to the top wall of the rotating plate. A second support seat is also fixedly connected to the top wall of the rotating plate. Both the first and second support seats are rotatably connected to the folding frame. A conical roller is rotatably connected between the first and second support seats.

[0009] The cleaning component is located on the outer wall of the right support frame;

[0010] A drive assembly is disposed on the top wall of the intermediate support frame, and the drive assembly cooperates with the adjustable assembly.

[0011] As a preferred technical solution of this application, the cleaning component includes a fixed box fixedly connected to the outer wall of the right support frame, a uniformly distributed sliding column slidably connected to the inner wall of the fixed box, a cleaning plate fixedly connected to the top wall of the sliding column, a strong spring fixedly connected to the end of the sliding column away from the cleaning plate, and the end of the strong spring away from the sliding column fixedly connected to the fixed box.

[0012] As a preferred technical solution of this application, the driving component includes a hydraulic cylinder fixedly connected to the top wall of the intermediate support frame, a movable plate fixedly connected to the output end of the hydraulic cylinder, and the end of the movable plate away from the output end of the hydraulic cylinder fixedly connected to the slider.

[0013] As a preferred technical solution of this application, a base is fixedly connected to the outer wall of the support frame on the left, a drive motor is fixedly connected to the top wall of the base, and the output end of the drive motor is fixedly connected to the outer wall of the convex roller.

[0014] As a preferred technical solution of this application, both the outer walls of the convex roller and the conical roller are provided with a feeding belt, and the inner wall of the feeding belt abuts against the outer walls of the convex roller and the conical roller.

[0015] Compared with the prior art, the present invention provides a belt feeding mechanism, which has the following advantages:

[0016] 1. This belt-type feeding mechanism uses a hydraulic cylinder output to drive a moving plate, which in turn moves all the sliders. The number of hydraulic cylinders can be increased according to the laying scale. After the sliders move, they drive the L-shaped plate to move, which in turn allows the folding frame to adapt to changing the folding angle. This causes the rotating plate to rotate adaptively. The larger the angle of the rotating plate, the larger the angle of the conical roller following the rotation of the rotating plate. This forces the enlarged conical roller to squeeze the feeding belt to move to both sides, thereby adjusting the depth and width of the V-shaped feeding belt. This allows for flexible adjustment of the raw material capacity that the feeding belt can accommodate, thus flexibly adapting to the motor power and conveying speed under different steps. This solves the problem in the prior art that the raw material capacity supported by the belt cannot be flexibly adjusted as needed.

[0017] 2. This belt-type feeding mechanism uses a strong spring to push the sliding column upward, which in turn drives the cleaning plate to squeeze the feeding belt upward. The raw material stuck on the feeding belt is scraped off by the cleaning plate. There are multiple sets of cleaning plates, which can scrape and clean multiple times to avoid residual raw material, prevent the residual raw material from wearing down the equipment and slowing down the feeding speed. This solves the problem of the lack of a cleaning structure in the existing technology to clean the raw material stuck on the belt. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the hydraulic cylinder part of this utility model;

[0020] Figure 3 This is a schematic diagram of the conical roller section of this utility model;

[0021] Figure 4 This is a schematic diagram of the cleaning plate part of this utility model;

[0022] Figure 5 This is a schematic diagram of the strong spring part of this utility model.

[0023] In the picture:

[0024] 1. Support frame; 2. Intermediate fixed plate; 3. Fixed frame; 4. Slider; 5. Moving plate; 6. Hydraulic cylinder; 7. L-shaped plate; 8. Folding frame; 9. Turning plate; 10. First support seat; 11. Second support seat; 12. Conical roller; 13. L-shaped block; 14. Convex roller; 15. Feeding belt; 16. Base; 17. Drive motor; 18. Fixed box; 19. Strong spring; 20. Sliding column; 21. Cleaning plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A belt-type feeding mechanism includes a support frame 1, which is symmetrically and evenly distributed. A middle fixing plate 2 is fixedly connected to the top wall of the support frame 1. The middle fixing plate 2 has a robust structure, is deformation-resistant, and plays a core supporting role in the overall feeding structure. The mechanism also includes:

[0028] L-shaped blocks 13 are symmetrically fixed to both ends of the middle fixed plate 2. The two ends of the L-shaped blocks 13 away from the middle fixed plate 2 are rotatably connected to symmetrically distributed convex rollers 14. The convex rollers 14 are located at both ends of the feeding belt 15, so that the feeding belt 15 and the convex rollers 14 rub against each other, which facilitates the transportation of raw materials for feeding operations.

[0029] The adjustable support assembly includes a fixed frame 3 fixedly connected to the outer wall of the intermediate fixed plate 2, and the fixed frames 3 are symmetrically distributed. A slider 4 is slidably connected to the inner wall of the fixed frame 3. An L-shaped plate 7 is symmetrically fixedly connected to the outer wall of the slider 4. A folding frame 8 is rotatably connected to the end of the L-shaped plate 7 away from the slider 4. A rotating plate 9 is rotatably connected to the end of the folding frame 8 away from the L-shaped plate 7. Two sets of rotating plates 9 are symmetrically distributed and rotatably connected to each other. A first support seat 10 is fixedly connected to the top wall of the rotating plate 9. A second support seat 11 is also fixedly connected to the top wall of the rotating plate 9. Both the first support seat 10 and the second support seat 11 are rotatably connected to the folding frame 8. A conical roller 1 is rotatably connected between the first support seat 10 and the second support seat 11. 2. The slider 4 slides within the fixed frame 3, thereby moving the L-shaped plate 7. The movement of the L-shaped plate 7 causes the folding frame 8 to move, thus causing the folding frame 8 to deform at an angle. This, in turn, causes the rotating plate 9 to adjust its angle. The rotating plate 9 then causes the first support seat 10 and the second support seat 11 to adjust their angles, which in turn causes the conical roller 12 to adjust its angle. Since the overall trend of the conical roller 12 is to lower both sides when adjusting its angle, the length of its feeding belt 15 remains unchanged, while its width is greater than the length formed on both sides of the conical roller 12. Therefore, when the conical roller 12 is lowered on both sides, the length formed will become longer, allowing the feeding belt 15 to flexibly adhere to the surface of the conical roller 12, thereby increasing the effective support area of ​​the feeding belt 15 for the raw materials.

[0030] Cleaning components are located on the outer wall of the right support frame 1;

[0031] The drive component is located on the top wall of the intermediate support frame 1, and the drive component cooperates with the adjustable component.

[0032] Reference Figure 4 and Figure 5 The cleaning assembly includes a fixed box 18 fixedly connected to the outer wall of the right support frame 1. The inner wall of the fixed box 18 is slidably connected with evenly distributed sliding columns 20. The top wall of the sliding column 20 is fixedly connected with a cleaning plate 21. A strong spring 19 is fixedly connected to the end of the sliding column 20 away from the cleaning plate 21, and the end of the strong spring 19 away from the sliding column 20 is fixedly connected to the fixed box 18. The raw material stuck on the feeding belt 15 will be squeezed and scraped off by the cleaning plate 21. If the raw material is firmly adhered, the first cleaning plate 21 that contacts the raw material can be appropriately contracted by the strong spring 19, and then squeezed and scraped off again by the second cleaning plate 21 that contacts the raw material, and so on. Multiple sets of cleaning plates 21 cooperate to achieve effective scraping off of the stuck raw material.

[0033] Reference Figure 2 The driving component includes a hydraulic cylinder 6 fixedly connected to the top wall of the intermediate support frame 1. A movable plate 5 is fixedly connected to the output end of the hydraulic cylinder 6, and the end of the movable plate 5 away from the output end of the hydraulic cylinder 6 is fixedly connected to the slider 4. The movable plate 5 is moved by the output end of the hydraulic cylinder 6, which in turn drives the slider 4 to slide within the fixed frame 3. The hydraulic cylinder 6 can be reasonably added according to the laying area of ​​the feeding structure to provide sufficient thrust and pull force to drive the movable plate 5 to move.

[0034] Reference Figure 1 A base 16 is fixedly connected to the outer wall of the left support frame 1, and a drive motor 17 is fixedly connected to the top wall of the base 16. The output end of the drive motor 17 is fixedly connected to the outer wall of the convex roller 14. The output end of the drive motor 17 drives the convex roller 14 to rotate, thereby providing power for the movement of the feeding belt 15.

[0035] Reference Figure 1 and Figure 4 Both the convex roller 14 and the conical roller 12 are provided with a feeding belt 15 on their outer walls. The inner wall of the feeding belt 15 abuts against the outer walls of the convex roller 14 and the conical roller 12. The feeding belt 15 is driven to rotate by the friction between the convex roller 14 and the feeding belt 15.

[0036] Specifically, during operation / use of this belt-type feeding mechanism: First, the angle of the conical roller 12 can be flexibly adjusted according to the preset power of the motor, the feeding speed, and the feeding capacity required by the feeding steps. Specifically, the hydraulic cylinder 6 outputs a moving plate 5, which in turn moves the slider 4 within the fixed frame 3, thereby moving the L-shaped plate 7. The movement of the L-shaped plate 7 then moves the folding frame 8, causing it to deform and adjust its angle. This, in turn, causes the rotating plate 9 to adjust its angle, which in turn moves the first support seat 10 and the second support seat 10. The seat 11 is angled, which in turn drives the conical roller 12 to adjust its angle. Since the overall trend of the conical roller 12 during angle adjustment is downward pressure on both sides, the length of the feeding belt 15 remains unchanged, but its width is greater than the length formed on both sides of the conical roller 12. Therefore, when the conical roller 12 is downward pressure on both sides, the length formed increases, allowing the feeding belt 15 to flexibly adhere to the surface of the conical roller 12, thereby expanding the effective support area of ​​the feeding belt 15 for the raw materials. The belt width can be adjusted according to different steps based on the adjusted effective support area of ​​the feeding belt 15, and the rotation speed is changed via the output end of the drive motor 17. The rotation speed of the feeding belt 15 is increased from 1.5-1.6 m / s in the first two steps to 2.5-2.6 m / s, and the width of the feeding belt 15 is adjusted to an effective support width of 950-1000 mm. In the final step, the belt speed is increased to 2.5-2.6 m / s, while the width of the feeding belt 15 remains unchanged. This reduces the feeding time from approximately 100 seconds to within 60-70 seconds, resulting in an additional 50-51 tons of sinter and 25-26 tons of coke per hour. Consequently, the blast furnace output is increased. After adjusting the width of the feeding belt 15... The output of the drive motor 17 drives the convex roller 14 to rotate. The friction between the convex roller 14 and the feeding belt 15 drives the feeding belt 15 to rotate, and drives the raw material to be fed through the conical roller 12. The raw material stuck on the feeding belt 15 will be squeezed and scraped off by the cleaning plate 21. If the raw material is firmly adhered, the first cleaning plate 21 that contacts the raw material can be appropriately contracted by the strong spring 19, and then squeezed and scraped off again by the second cleaning plate 21 that contacts the raw material. This process is repeated, and multiple sets of cleaning plates 21 work together to effectively scrape off the stuck raw material.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A belt-type feeding mechanism, comprising a support frame (1), characterized in that: The support frames (1) are symmetrically and evenly distributed, the top wall of the support frames (1) is fixedly connected to an intermediate fixing plate (2), and further comprises: An L-shaped block (13) is symmetrically fixedly connected to two ends of the middle fixed plate (2); two ends of the L-shaped block (13) away from the middle fixed plate (2) are rotatably connected to symmetrically distributed convex rollers (14); An adjustable support assembly, the adjustable support assembly comprising a fixed frame (3) fixedly connected to the outer wall of the middle fixed plate (2), and the fixed frame (3) is symmetrically distributed, the inner wall of the fixed frame (3) is slidably connected to a slider (4), the outer wall of the slider (4) is symmetrically fixedly connected to an L-shaped plate (7), the end of the L-shaped plate (7) away from the slider (4) is rotatably connected to a folding frame (8), the end of the folding frame (8) away from the L-shaped plate (7) is rotatably connected to a rotating plate (9), and the rotating plates (9) are symmetrically distributed in two groups, and the two groups of rotating plates (9) are rotatably connected to each other, the top wall of the rotating plate (9) is fixedly connected to a first support seat (10), the top wall of the rotating plate (9) is also fixedly connected to a second support seat (11), and the first support seat (10) and the second support seat (11) are both rotatably connected to the folding frame (8), and a conical roller (12) is rotatably connected between the first support seat (10) and the second support seat (11); A cleaning component, arranged on the outer wall of the right support frame (1); A driving component is arranged on the top wall of the intermediate support frame (1), and the driving component cooperates with the adjustable component.

2. A belt-type feeding mechanism according to claim 1, characterized in that: The cleaning assembly comprises a fixed box (18) fixedly connected to the outer wall of the right support frame (1), the inner wall of the fixed box (18) is slidably connected to evenly distributed sliding columns (20), the top wall of the sliding column (20) is fixedly connected to a cleaning plate (21), one end of the sliding column (20) away from the cleaning plate (21) is fixedly connected to a strong spring (19), and the end of the strong spring (19) away from the sliding column (20) is fixedly connected to the fixed box (18).

3. A belt-type feeding mechanism according to claim 1, characterized in that: The driving assembly comprises a hydraulic cylinder (6) fixedly connected to the top wall of the intermediate support frame (1); the output end of the hydraulic cylinder (6) is fixedly connected to a movable plate (5); and an end of the movable plate (5) away from the output end of the hydraulic cylinder (6) is fixedly connected to a sliding block (4).

4. A belt-type feeding mechanism according to claim 1, characterized in that: The outer wall of the left support frame (1) is fixedly connected to a base (16), the top wall of the base (16) is fixedly connected to a drive motor (17), and the output end of the drive motor (17) is fixedly connected to the outer wall of the convex roller (14).

5. A belt-type feeding mechanism according to claim 1, characterized in that: The outer walls of the convex roller (14) and the conical roller (12) are both provided with a feeding belt (15), and the inner wall of the feeding belt (15) abuts against the outer walls of the convex roller (14) and the conical roller (12).

Images