Coal feeding device with coal powder scale

Abstract

The utility model relates to a kind of coal powder scale coal feeding device, including storage hopper, the storage hopper is upper and lower through-penetration, the bottom of the storage hopper is welded with two symmetrical distribution hopper, two the distribution hopper between fixedly connected with baffle, space is separated in storage hopper by baffle, the distribution hopper is inverted triangular and bottom is all provided with discharge mechanism;Screening mechanism, the screening mechanism is set in the top of storage hopper for incoming material is divided into different distribution hopper top, by two discharge mechanism to the raw material in different cavity phase input coal powder scale;Vibration mechanism, the vibration mechanism is set between two distribution hoppers for vibrating raw material. This full-time effectively solves the influence of large particle material on weighing accuracy when single-channel discharging, and through mechanical vibration, it is ensured that unloading is smooth, suitable for coal powder dosing scene needing high-precision measurement.

Description

Technical Field

[0001] This utility model relates to the field of feeding equipment technology, and in particular to a coal powder scale feeding device. Background Technology

[0002] Pulverized coal is formed after coal is crushed and processed. It is widely used in the combustion or gasification processes of industries such as power, cement, metallurgy and chemical industry. In order to maximize its effect during use, it usually needs to be weighed before use. Its accuracy directly affects combustion efficiency and emission control.

[0003] A search revealed a coal feeding device for weighing pulverized coal, disclosed in announcement number CN212424505U. The device includes a main body. While it can prevent blockage at the discharge port, the large particles have greater kinetic energy when falling due to differences in particle diameter. This affects the weighing accuracy. Therefore, a coal feeding device for pulverized coal scales is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where there are differences in the diameter of raw material particles, and large particles have greater kinetic energy when falling due to a single-channel uniform feeding method, which affects the weighing accuracy. Therefore, this invention proposes a coal powder scale feeding device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A coal powder scale feeding device includes a storage hopper, which is through-hole in the upper and lower parts. Two symmetrical distribution hoppers are welded to the bottom of the storage hopper. A partition is fixedly connected between the two distribution hoppers to divide the space inside the storage hopper. The distribution hoppers are inverted triangular in shape and each of them is provided with a discharge mechanism at the bottom. The screening mechanism is located on top of the storage hopper and is used to distribute incoming materials into different distribution hoppers. The raw materials in different cavities are fed into the coal powder scale in stages through two discharge mechanisms. A vibration mechanism is provided between two feed hoppers for vibrating the raw materials.

[0006] As a further embodiment of this utility model, the discharge mechanism includes a discharge pipe fixed to the bottom of the distribution hopper, a discharge port for discharging is opened on the surface of the discharge pipe, the discharge port is located inside the distribution hopper, a servo motor is fixedly connected to one end of the discharge pipe, an auger is fixedly connected to one end of the output shaft of the servo motor, the auger is located inside the discharge pipe, and a discharge pipe is fixedly connected to the bottom of the discharge pipe.

[0007] As a further improvement of this utility model, the bottom of the discharge pipe is secured with a cloth sleeve by wire.

[0008] As a further embodiment of this utility model, a baffle is fixedly connected to one side of the dispensing hopper, and the servo motor is located below the baffle.

[0009] As a further embodiment of this utility model, the screening mechanism includes a screen box, and multiple springs are provided between the two sides of the screen box and the two sides of the storage hopper. The springs are fixedly installed between the screen box and the storage hopper through spring seats. A set of through holes is opened at the bottom of the screen box, and the through holes are located above the adjacent distribution hopper. A vibration motor is fixedly connected to the bottom of the screen box.

[0010] As a further embodiment of this utility model, the vibration mechanism includes two fixed frames and a cylinder. The two fixed frames are fixed between two distributing hoppers, and a through-shaft is rotatably connected between the two fixed frames. A rubber rod is fixedly connected to the circumference of the shaft. Two stop rods are fixedly connected between the fixed frames. The two stop rods are symmetrically arranged and located within the rotation radius of the rubber rod. A drive rod is fixedly connected to one end of the shaft. The drive rod is perpendicular to the shaft. The cylinder is rotatably connected to one side of one of the distributing hoppers, and one end of the cylinder piston rod is rotatably connected to the drive rod.

[0011] As a further improvement of this invention, two viewing windows are provided on one side of the storage hopper.

[0012] As a further improvement of this utility model, support rods are fixedly connected to the four corners of the storage hopper to support the storage hopper.

[0013] In this application, during use, the raw material is placed above the screen box, and the vibrating motor is activated to cause the screen box to vibrate. The raw material is screened on the screen box. Larger particles are guided by the screen box into the cavity of one of the distribution hoppers, while smaller particles fall through the perforations into the other cavity. During feeding, the servo motor below the large particles is activated, driving the auger to feed the large particles. When the feeding approaches the set value, the feeding of large particles stops, and then another servo motor is activated to feed the smaller particles. This allows for phased feeding, preventing large particles from being fed in a concentrated manner and causing significant vibration that could lead to unstable weighing. This improves the accuracy of weighing and feeding. Simultaneously with feeding, the cylinder is activated, causing the piston rod to extend and retract repeatedly. As the piston rod moves, it drives the rotating shaft via the drive rod, which in turn drives the rubber rod to rotate. When the rubber rod moves to one side of the stop bar, it is blocked and deforms. After disengaging from the stop bar, it collides with the distribution hopper, thus vibrating the distribution hopper and preventing raw materials from bridging and accumulating in it, thereby improving the feeding efficiency.

[0014] Beneficial effects: In this utility model, the coal powder scale feeding device separates the raw materials according to their diameter, so that when the feeding of large particles of raw materials approaches the set value, it stops and then feeds small particles of raw materials. This prevents the large vibration caused by the concentrated feeding of large particles of raw materials, which would lead to unstable weighing, and improves the accuracy of weighing and feeding. In this utility model, the coal powder scale feeding device, through the setting of the vibration mechanism, enables the distribution hopper to vibrate through the rubber rod during feeding, preventing the raw materials from bridging and accumulating in the distribution hopper and improving the feeding effect; In this invention, the large-particle raw materials are concentrated and fed into the hopper, which causes large vibrations and unstable weighing. This improves the accuracy of weighing and feeding. At the same time, the rubber rod vibrates the hopper to prevent raw materials from bridging and accumulating in the hopper, thus improving the feeding effect. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a coal powder scale feeding device proposed in this utility model from a first perspective. Figure 2 This is a two-dimensional structural schematic diagram of a coal powder scale feeding device proposed in this utility model from a second perspective. Figure 3 This is a cross-sectional structural schematic diagram of a coal powder scale feeding device proposed in this utility model; Figure 4 This is a schematic diagram of the vibration mechanism of a coal powder scale feeding device proposed in this utility model.

[0016] In the diagram: 1. Storage hopper; 2. Distribution hopper; 3. Discharge pipe; 4. Spring; 5. Screen box; 6. Viewing window; 7. Servo motor; 8. Baffle; 9. Vibration motor; 10. Discharge port; 11. Screwdriver; 12. Discharge pipe; 13. Cloth sleeve; 14. Perforation; 15. Fixing frame; 16. Rotating shaft; 17. Rubber rod; 18. Cylinder; 19. Drive rod; 20. Partition plate; 21. Stop bar. Detailed Implementation

[0017] 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.

[0018] In one embodiment: Refer to Figures 1-4 A coal feeding device includes: a storage hopper 1, which is through-hole in the upper and lower parts, and two symmetrical distribution hoppers 2 welded to the bottom of the storage hopper 1. A partition 20 is fixedly connected between the two distribution hoppers 2, which divides the space inside the storage hopper 1. The distribution hoppers 2 are inverted triangular in shape and each of them is provided with a discharge mechanism at the bottom. The inverted triangular shape facilitates the falling of raw materials. The screening mechanism is located on top of the storage hopper 1 to distribute incoming materials into different distribution hoppers 2. The screening mechanism divides the raw material into two parts, which fall into different distribution hoppers 2 respectively. The raw material in different cavities is fed into the coal powder scale in stages through two discharge mechanisms. In the first stage, large particles are fed into the scale, and the feeding stops when the amount is close to the set value. Then, small particles are fed into the scale. This prevents large particles from being fed into the scale at the same time, which may cause large vibrations and unstable weighing. This improves the accuracy of weighing and feeding, and can reduce the problem of batch weight inaccuracy caused by the weight of large particles themselves. A vibration mechanism is installed between two feed hoppers 2 to vibrate the raw materials.

[0019] In this utility model, the discharge mechanism includes a discharge pipe 3 fixed to the bottom of the distribution hopper 2. The surface of the discharge pipe 3 is provided with a discharge port 10 for discharging materials. The discharge port 10 is located inside the distribution hopper 2. One end of the discharge pipe 3 is fixedly connected to a servo motor 7. One end of the output shaft of the servo motor 7 is fixedly connected to an auger 11. The auger 11 is located inside the discharge pipe 3. The bottom of the discharge pipe 3 is fixedly connected to a discharge pipe 12. The servo motor 7 can drive the auger 11 to push the raw materials, thereby realizing the discharge.

[0020] This application can be used in the field of feeding equipment, or in other fields applicable to this application.

[0021] In another embodiment: Reference Figures 1-4 A coal powder scale feeding device is applied to the field of feeding equipment.

[0022] In particular, the bottom of the discharge pipe 12 is tied with a cloth sleeve 13 by wire. The cloth sleeve 13 is made of non-woven fabric, which has a buffering effect on the discharge, reduces the vibration of the falling material, and improves the weighing accuracy.

[0023] It should be noted that a baffle 8 is fixedly connected to one side of the hopper 2, and the servo motor 7 is located below the baffle 8. The baffle 8 serves to cover the dust.

[0024] In this utility model, the screening mechanism includes a screen box 5. Multiple springs 4 are provided between the two sides of the screen box 5 and the two sides of the storage hopper 1. The springs 4 are fixedly installed between the screen box 5 and the storage hopper 1 through spring seats. A set of through holes 14 are opened at the bottom of the screen box 5. The through holes 14 are located above the adjacent distribution hopper 2. A vibration motor 9 is fixedly connected to the bottom of the screen box 5. When the vibration motor 9 is started, the screen box 5 vibrates, and the raw materials are screened on the screen box 5.

[0025] Specifically, the vibration mechanism includes two fixed frames 15 and a cylinder 18. The two fixed frames 15 are fixed between the two distributing hoppers 2. A through-type rotating shaft 16 is rotatably connected between the two fixed frames 15. A rubber rod 17 is fixedly connected to the circumference of the rotating shaft 16. Two stop rods 21 are fixedly connected between the fixed frames 15, symmetrically arranged and located within the rotation radius of the rubber rod 17. A drive rod 19 is fixedly connected to one end of the rotating shaft 16, and the drive rod 19 is perpendicular to the rotating shaft 16. The cylinder 18 rotates... One end of the piston rod of the cylinder 18 is rotatably connected to the drive rod 19 on one side of one of the distribution hoppers 2. The piston rod of the cylinder 18 extends and retracts repeatedly. When the piston rod moves, it drives the rotating shaft 16 to rotate through the drive rod 19. The rotating shaft 16 drives the rubber rod 17 to rotate. The rubber rod 17 moves to the side of the stop rod 21 and is blocked, thus deforming. After it breaks away from the stop rod 21, it collides with the distribution hopper 2, which can make the distribution hopper 2 vibrate. At the same time, the material level can be judged by the sound of the collision.

[0026] It should be noted that two viewing windows 6 are provided on one side of the storage hopper 1, which can be used to observe the material level.

[0027] In this utility model, support rods are fixedly connected to the four corners of the storage hopper 1 to support the storage hopper 1.

[0028] However, as is well known to those skilled in the art, the working principles and wiring methods of the servo motor 7, the vibration motor 9, and the cylinder 18 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0029] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0030] 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 coal powder scale feeding device, comprising a storage hopper (1), characterized in that, The storage hopper (1) is through-hole, and two symmetrical distribution hoppers (2) are welded to the bottom of the storage hopper (1). A partition (20) is fixedly connected between the two distribution hoppers (2), and the space inside the storage hopper (1) is separated by the partition (20). The distribution hoppers (2) are inverted triangular and each has a discharge mechanism at the bottom. The screening mechanism is set on the top of the storage hopper (1) to divide the incoming material into different distribution hoppers (2) and feeds the raw materials in different cavities into the coal powder scale in stages through two discharge mechanisms. A vibration mechanism is provided between two feed hoppers (2) for vibrating the raw materials.

2. The coal powder scale feeding device according to claim 1, characterized in that, The discharge mechanism includes a discharge pipe (3) fixed at the bottom of the distribution hopper (2). The surface of the discharge pipe (3) is provided with a discharge port (10) for discharging. The discharge port (10) is located inside the distribution hopper (2). One end of the discharge pipe (3) is fixedly connected to a servo motor (7). One end of the output shaft of the servo motor (7) is fixedly connected to an auger (11). The auger (11) is located inside the discharge pipe (3). The bottom of the discharge pipe (3) is fixedly connected to a discharge pipe (12).

3. The coal powder scale feeding device according to claim 2, characterized in that, The bottom of the discharge pipe (12) is bound with a cloth sleeve (13) by wire.

4. The coal powder scale feeding device according to claim 3, characterized in that, A baffle (8) is fixedly connected to one side of the hopper (2), and the servo motor (7) is located below the baffle (8).

5. A coal powder scale feeding device according to claim 1, characterized in that, The screening mechanism includes a screen box (5). Multiple springs (4) are provided between the two sides of the screen box (5) and the two sides of the storage hopper (1). The springs (4) are fixedly installed between the screen box (5) and the storage hopper (1) through spring seats. A set of through holes (14) are opened at the bottom of the screen box (5). The through holes (14) are located above the adjacent distribution hopper (2). A vibration motor (9) is fixedly connected to the bottom of the screen box (5).

6. A coal powder scale feeding device according to claim 1, characterized in that, The vibration mechanism includes two fixed frames (15) and a cylinder (18). The two fixed frames (15) are fixed between the two distribution hoppers (2). A through shaft (16) is rotatably connected between the two fixed frames (15). A rubber rod (17) is fixedly connected to the circumference of the shaft (16). Two stop rods (21) are fixedly connected between the fixed frames (15). The two stop rods (21) are symmetrically arranged and located within the rotation radius of the rubber rod (17). A drive rod (19) is fixedly connected to one end of the shaft (16). The drive rod (19) is perpendicular to the shaft (16). The cylinder (18) is rotatably connected to one side of one of the distribution hoppers (2). One end of the piston rod of the cylinder (18) is rotatably connected to the drive rod (19).

7. A coal powder scale feeding device according to claim 1, characterized in that, Two viewing windows (6) are provided on one side of the storage hopper (1).

8. A coal powder scale feeding device according to claim 1, characterized in that, Support rods are fixedly connected to the four corners of the storage hopper (1) to support the storage hopper (1).

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