A mixed fuel compounding device with coal gangue as base material

Abstract

The utility model relates to coal gangue fuel processing equipment field especially, more particularly to a kind of mixed fuel compounding device with coal gangue as base material, the mixed fuel compounding device with coal gangue as base material includes: stirring jar, conveying belt, mounting bracket, drive assembly, scraper and rotating component, the inside installation of stirring jar has stirring rod and the top installation is used for driving the drive motor of stirring rod rotation, the mixed fuel compounding device with coal gangue as base material provided by the utility model drives bottom conveying belt by main motor, and utilize driving pulley one and driven pulley one transmission middle part conveying belt, driving pulley two and driven pulley two transmission top conveying belt, form three-stage differential transmission system. The design makes coal gangue, lignite, sulfur-fixing agent be preset proportion synchronous delivery to stirring jar, avoids the material layering phenomenon caused by traditional step feeding, significantly shortens the time required for stirring uniform, reduces energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of coal gangue fuel processing equipment, and in particular to a mixed fuel compounding device based on coal gangue. Background Technology

[0002] In the production process of blended fuel based on coal gangue, coal gangue needs to be mixed with raw coal, desulfurizing agents and other materials in a specific ratio to meet the requirements of combustion efficiency, environmental emissions and molding performance. The uniformity of mixing and the accuracy of the proportioning directly affect the combustion effect and application performance of the fuel. Therefore, the design of the compounding device is crucial to production efficiency and product quality. Currently, the operation of existing mixed fuel blending devices generally suffers from the following shortcomings: Traditional devices mostly adopt a step-by-step feeding mode, that is, a certain proportion of coal gangue is first put into the mixing device, and then other materials are added in sequence. This method will cause the materials to form obvious stratification in the early stage of mixing, which increases the time required for uniform mixing and increases energy consumption. Secondly, coal gangue and other materials have a certain degree of stickiness and are easy to adhere to the inner wall of the mixing tank during the mixing process. If they are not cleaned in time, not only will it cause material waste, but it may also form hard lumps due to long-term accumulation, affecting the uniformity of subsequent mixing, and even requiring periodic shutdowns for manual cleaning, further reducing production efficiency.

[0003] Therefore, it is necessary to provide a new mixed fuel blending device based on coal gangue to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a mixed fuel blending device based on coal gangue.

[0005] The mixed fuel compounding device based on coal gangue provided by this utility model includes: a mixing cylinder, a conveyor belt, a mounting frame, a drive assembly, a scraper, and a rotating assembly. The mixing cylinder has a stirring rod installed inside and a drive motor installed on its top for rotating the stirring rod. Conveyor belts for conveying different materials are equidistantly installed on the top of the mixing cylinder. A mounting frame is installed on one side of the mixing cylinder, and several of the conveyor belts are installed inside the mounting frame. A drive assembly is installed between the mounting frame and the conveyor belts, driving the conveyor belts to convey materials at different speeds. Scrapers are symmetrically arranged inside the mixing cylinder, and a rotating assembly is installed between the mixing cylinder and the scrapers. The rotating assembly drives the scrapers to rotate, scraping off materials adhering to the inner wall of the mixing cylinder during the mixing process.

[0006] Preferably, the drive assembly includes: a main motor, a driving pulley, and a driven pulley. The main motor is fixedly connected to one side of the mounting frame. The output end of the main motor is fixedly connected to a shaft at the bottom of a conveyor belt away from the mixing cylinder. A driving pulley is fixedly connected to one end of the shaft. A driven pulley is fixedly connected to the end of a shaft at the middle of a conveyor belt away from the mixing cylinder. The driving pulley and the driven pulley are connected by a belt drive.

[0007] Preferably, a drive pulley 2 is fixedly connected to the other end of the shaft of one conveyor belt at the bottom, away from the mixing cylinder, and a driven pulley 2 is fixedly connected to the end of the shaft of one conveyor belt at the top, away from the mixing cylinder, and the drive pulley 2 and the driven pulley 2 are connected by belt drive.

[0008] Preferably, the radius ratio of the first driving pulley to the first driven pulley is 1:0.9, and the radius ratio of the second driving pulley to the second driven pulley is 1:10.

[0009] Preferably, the rotating assembly includes: a first end face gear, a gear column, and a second end face gear. The first end face gear is fixedly connected to the top of the stirring rod. The gear column is symmetrically and rotatably connected to the inner wall of the top of the stirring cylinder. The top side of the gear column meshes with the first end face gear. A connecting cylinder is sleeved on the outer wall of the top of the stirring rod, and the connecting cylinder is rotatably connected to the outer wall of the stirring rod. The second end face gear is fixedly connected to the outer wall of the connecting cylinder, and the second end face gear meshes with the bottom side of the gear column.

[0010] Preferably, connecting rods are symmetrically fixedly connected to the outer wall of the connecting cylinder, and the other end of the connecting rod is fixedly connected to the corresponding scraper.

[0011] Preferably, a protective cover is fixedly connected to the top inner wall of the mixing tank, and the drive assembly is placed inside the protective cover.

[0012] Compared with related technologies, the mixed fuel blending device based on coal gangue provided by this utility model has the following beneficial effects: A three-stage differential speed conveying system is formed by driving the bottom conveyor belt with the main motor, and using the drive pulley one and driven pulley one to drive the middle conveyor belt, and the drive pulley two and driven pulley two to drive the top conveyor belt. This design allows coal gangue, lignite, and desulfurizing agent to be transported to the mixing tank synchronously in a preset ratio, avoiding the material stratification phenomenon caused by traditional step feeding, significantly shortening the time required for uniform mixing, and reducing energy consumption.

[0013] The rotating component design drives the scraper to rotate in the opposite direction to the stirring rod. The scraper edge fits tightly against the inner wall of the mixing cylinder, continuously scraping away adhering materials such as coal gangue and lignite during rotation. This prevents long-term accumulation and hardening, avoiding uneven mixing and equipment damage caused by scaling on the cylinder wall. It eliminates the need for periodic shutdowns and manual intervention, significantly improving production efficiency and economic benefits. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the mixed fuel compounding device based on coal gangue provided by this utility model; Figure 2 for Figure 1 The diagram shows a side view of the mixing tank. Figure 3 for Figure 2 The diagram shows the structure at point A. Figure 4 for Figure 2 A schematic diagram of a partial cross-section of the mixing tank shown; Figure 5 for Figure 4 The diagram shows the structure at point B.

[0015] The following are the labels in the diagram: 1. Mixing cylinder; 2. Mixing rod; 3. Drive motor; 4. Conveyor belt; 5. Mounting frame; 6. Scraper; 7. Main motor; 8. Drive pulley one; 9. Driven pulley one; 10. Drive pulley two; 11. Driven pulley two; 12. End face gear one; 13. Gear column; 14. End face gear two; 15. Connecting cylinder; 16. Protective cover. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0017] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0018] Please see Figures 1 to 5A mixed fuel blending device based on coal gangue is disclosed. The device comprises: a mixing cylinder 1, a conveyor belt 4, a mounting frame 5, a drive assembly, scrapers 6, and a rotating assembly. The mixing cylinder 1 has a stirring rod 2 installed inside and a drive motor 3 installed at its top for rotating the stirring rod 2. Conveyor belts 4 for conveying different materials are equidistantly installed at the top of the mixing cylinder 1. A mounting frame 5 is installed on one side of the mixing cylinder 1, and several of the conveyor belts 4 are installed inside the mounting frame 5. A drive assembly is installed between the mounting frame 5 and the conveyor belts 4, driving the conveyor belts 4 to convey materials at different speeds. Scrapers 6 are symmetrically arranged inside the mixing cylinder 1. A rotating assembly is installed between the mixing cylinder 1 and the scrapers 6, driving the scrapers 6 to rotate and scrape off materials adhering to the inner wall of the mixing cylinder 1 during the mixing process. The drive assembly includes: a main motor 7 and a drive belt 8. Wheel 8 and driven pulley 9 are fixedly connected to one side of the mounting frame 5. The output end of the main motor 7 is fixedly connected to the shaft of a conveyor belt 4 located at the bottom away from the mixing cylinder 1. One end of the shaft is fixedly connected to the driving pulley 8. The end of the shaft of a conveyor belt 4 located in the middle away from the mixing cylinder 1 is fixedly connected to the driven pulley 9. The driving pulley 8 and the driven pulley 9 are connected by belt drive. The other end of the shaft of a conveyor belt 4 located at the bottom away from the mixing cylinder 1 is fixedly connected to the driving pulley 10. The end of the shaft of a conveyor belt 4 located at the top away from the mixing cylinder 1 is fixedly connected to the driven pulley 11. The driving pulley 10 and the driven pulley 11 are connected by belt drive. The radius ratio of the driving pulley 8 to the driven pulley 9 is 1:0.9, and the radius ratio of the driving pulley 10 to the driven pulley 11 is 1:10.

[0019] It should be noted that: the output end of the main motor 7 is directly and fixedly connected to the shaft of the bottom conveyor belt 4, driving it to rotate actively and transport coal gangue; one end of the shaft of the bottom conveyor belt 4 is fixed with a drive pulley 8, which is connected to the driven pulley 9 on the shaft of the middle conveyor belt 4 via belt drive; since the radius ratio of the drive pulley 8 to the driven pulley 9 is 1:0.9, the speed of the middle conveyor belt 4 is slightly higher than that of the bottom conveyor belt 4, matching the conveying volume of 45% lignite; the other end of the shaft of the bottom conveyor belt 4 is fixed with a drive pulley 10, which is connected to the driven pulley 11 on the shaft of the top conveyor belt 4 via belt drive; since the radius ratio of the drive pulley 10 to the driven pulley 11 is 1:10, the speed of the top conveyor belt 4 is significantly reduced, only 1 / 10 of that of the bottom conveyor belt 4, precisely controlling the small proportion of 5% desulfurizing agent conveying.

[0020] Please see Figure 4 and Figure 5The rotating assembly includes: a first end gear 12, a gear column 13, and a second end gear 14. The top end of the stirring rod 2 is fixedly connected to the first end gear 12. The gear column 13 is symmetrically and rotatably connected to the inner wall of the top of the stirring cylinder 1. The top side of the gear column 13 meshes with the first end gear 12. A connecting cylinder 15 is sleeved on the outer wall of the top of the stirring rod 2, and the connecting cylinder 15 is rotatably connected to the outer wall of the stirring rod 2. The second end gear 14 is fixedly connected to the outer wall of the connecting cylinder 15, and the second end gear 14 meshes with the bottom side of the gear column 13. A connecting rod is symmetrically and fixedly connected to the outer wall of the connecting cylinder 15. The other end of the connecting rod is fixedly connected to the corresponding scraper 6. A protective cover 16 is fixedly connected to the inner wall of the top of the stirring cylinder 1. The driving assembly is placed inside the protective cover 16.

[0021] It should be noted that: the protective cover is used to protect the rotating component and prevent materials from entering the rotating component during the mixing process; the output end of the drive motor 3 extends into the interior of the mixing cylinder 1 and is fixedly connected to the mixing rod 2, driving the mixing rod 2 to rotate at a set speed. The blades of the mixing rod 2 shear and tumble the materials in the cylinder, so that the coal gangue, lignite and desulfurizing agent are quickly mixed under the action of mechanical force, shortening the homogenization time. During the stirring process, the end face gear 12 fixed at the top of the stirring rod 2 rotates synchronously with the stirring rod 2, driving the gear column 13 meshing with it to rotate; the bottom side of the gear column 13 meshes with the end face gear 14, and the end face gear 14 is driven to rotate in the opposite direction to the end face gear 12; the end face gear 14 is fixed on the outer wall of the connecting cylinder 15, the connecting cylinder 15 is sleeved on the stirring rod 2 through bearings, and its outer wall is symmetrically fixed with connecting rods, the ends of the connecting rods are fixedly connected to the corresponding scrapers 6, so the connecting cylinder 15 drives the symmetrical connecting rods and scrapers 6 on the outer wall to rotate synchronously, and the direction of rotation is opposite to that of the stirring rod 2.

[0022] The working principle of the mixed fuel blending device based on coal gangue provided by this utility model is as follows: According to the preset ratio, 50% coal gangue, 45% lignite, and 5% sulfur-fixing agent are fed into the feed ends of the corresponding conveyor belts 4: the bottom conveyor belt 4 receives coal gangue as the main component of the mixed fuel; the middle conveyor belt 4 receives lignite to supplement calorific value; and the top conveyor belt 4 receives sulfur-fixing agent to control sulfur emissions during combustion. All conveyor belts 4 are fixed by mounting frames 5, with the feed ends aligned with the material storage equipment and the discharge ends pointing uniformly to the feed inlet at the top of the mixing cylinder 1. The main motor 7 on one side of the mounting frame 5 is started, driving the three conveyor belts 4 to run at different speeds through the pulley drive system to achieve precise proportioning and conveying: Specifically, the output end of the main motor 7 is directly and fixedly connected to the shaft of the bottom conveyor belt 4, driving it to rotate actively and convey coal gangue; one end of the shaft of the bottom conveyor belt 4 is fixed with a drive pulley 8, which is connected to the driven pulley 9 on the shaft of the middle conveyor belt 4 through belt drive; since the radius ratio of the drive pulley 8 to the driven pulley 9 is 1:0.9, the speed of the middle conveyor belt 4 is slightly higher than that of the bottom conveyor belt 4, matching the conveying amount of 45% lignite; the other end of the shaft of the bottom conveyor belt 4 is fixed with a drive pulley 10, which is connected to the driven pulley 11 on the shaft of the top conveyor belt 4 through belt drive; since the radius ratio of the drive pulley 10 to the driven pulley 11 is 1:10, the speed of the top conveyor belt 4 is significantly reduced, only 1 / 10 of that of the bottom conveyor belt 4, precisely controlling the small proportion of 5% desulfurizing agent conveying; The three materials are synchronously conveyed to the feeding port via differential conveyor belt 4 and fall into the mixing tank 1 at the same time, avoiding the material stratification problem caused by traditional step feeding. After all the materials are added to the mixing tank 1, the main motor 7 stops running. At the same time, the top drive motor 3 is started, driving the stirring rod 2 to rotate for mixing. The output end of the drive motor 3 extends into the interior of the mixing tank 1 and is fixedly connected to the stirring rod 2, driving the stirring rod 2 to rotate at a set speed. The blades of the stirring rod 2 shear and tumble the materials in the tank, so that the coal gangue, lignite and desulfurizing agent are quickly mixed under mechanical force, shortening the homogenization time. During the stirring process, the rotating component synchronously drives the scraper 6 to rotate in the opposite direction, automatically cleaning the material adhering to the cylinder wall. Specifically, the end face gear 12 fixed at the top of the stirring rod 2 rotates synchronously with the stirring rod 2, driving the gear column 13 meshing with it to rotate; the bottom side of the gear column 13 meshes with the end face gear 14, and the end face gear 14 is driven to rotate in the opposite direction to the end face gear 12; the end face gear 14 is fixed on the outer wall of the connecting cylinder 15, and the connecting cylinder 15 is sleeved on the stirring rod 2 through bearings, and its outer wall is symmetrically fixed with connecting rods, the ends of which are fixedly connected to the corresponding scraper 6. Therefore, the connecting cylinder 15 drives the symmetrical connecting rods and scraper 6 on the outer wall to rotate synchronously, and the direction of rotation is opposite to that of the stirring rod 2. The edge of the scraper 6 is in close contact with the inner wall of the mixing tank 1. During the rotation process, it scrapes off the adhering coal gangue and sticky materials to the mixing area, avoiding material waste and scaling on the tank wall. When the mixing reaches the set time, the drive motor 3 is turned off, the stirring rod 2 and scraper 6 stop running, the discharge port at the bottom of the mixing tank 1 is opened, and the uniformly mixed coal gangue fuel is discharged, completing one compounding process.

[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A mixed fuel blending device using coal gangue as a base material, characterized in that, include: A stirring tank (1) is provided with a stirring rod (2) inside and a drive motor (3) for driving the stirring rod (2) to rotate on the top. Conveyor belts (4) are installed at equal intervals on the top of the mixing cylinder (1) for conveying different materials. Mounting frame (5), mounting frame (5) is installed on one side of the mixing tank (1), and several of the conveyor belts (4) are installed inside the mounting frame (5); A drive assembly is installed between the mounting frame (5) and the conveyor belt (4), and the drive assembly drives the conveyor belt (4) to transport materials at different speeds; Scraper (6): Scraper (6) is symmetrically provided inside the mixing tank (1); A rotating assembly is installed between the mixing cylinder (1) and the scraper (6). The rotating assembly drives the scraper (6) to rotate, which is used to scrape off the material adhering to the inner wall of the mixing cylinder (1) during the mixing process.

2. The mixed fuel blending device based on coal gangue as described in claim 1, characterized in that, The drive assembly includes a main motor (7), a drive pulley (8), and a driven pulley (9). The main motor (7) is fixedly connected to one side of the mounting bracket (5). The output end of the main motor (7) is fixedly connected to the shaft of a conveyor belt (4) located at the bottom away from the mixing cylinder (1), and the drive pulley (8) is fixedly connected to one end of the shaft. The driven pulley (9) is fixedly connected to the shaft of a conveyor belt (4) located in the middle away from the mixing cylinder (1). The drive pulley (8) and the driven pulley (9) are connected by belt drive.

3. The mixed fuel blending device based on coal gangue according to claim 2, characterized in that, The other end of the shaft of one conveyor belt (4) at the bottom away from the mixing cylinder (1) is fixedly connected to the second drive pulley (10), and the end of the shaft of one conveyor belt (4) at the top away from the mixing cylinder (1) is fixedly connected to the second driven pulley (11). The second drive pulley (10) and the second driven pulley (11) are connected by belt drive.

4. The mixed fuel blending device based on coal gangue according to claim 3, characterized in that, The radius ratio of the driving pulley 1 (8) to the driven pulley 1 (9) is 1:0.9, and the radius ratio of the driving pulley 2 (10) to the driven pulley 2 (11) is 1:

10.

5. The mixed fuel blending device based on coal gangue as described in claim 1, characterized in that, The rotating assembly includes: a first end face gear (12), a gear column (13) and a second end face gear (14). The top end of the stirring rod (2) is fixedly connected to the first end face gear (12). The top inner wall of the stirring cylinder (1) is symmetrically connected to the gear column (13). The top side of the gear column (13) meshes with the first end face gear (12). The top outer wall of the stirring rod (2) is fitted with a connecting cylinder (15), and the connecting cylinder (15) is rotatably connected to the outer wall of the stirring rod (2). The outer wall of the connecting cylinder (15) is fixedly connected to the second end face gear (14), and the second end face gear (14) meshes with the bottom side of the gear column (13).

6. The mixed fuel blending device based on coal gangue according to claim 5, characterized in that, Connecting rods are symmetrically fixed to the outer wall of the connecting cylinder (15), and the other end of the connecting rods is fixedly connected to the corresponding scraper (6).

7. The mixed fuel blending device based on coal gangue according to claim 5, characterized in that, A protective cover (16) is fixedly connected to the top inner wall of the mixing tank (1), and the drive assembly is placed inside the protective cover (16).

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