Coal feeding device for weighing pulverized coal

Abstract

The utility model relates to the technical field of coal feeding devices, in particular to a coal feeding device for weighing pulverized coal, which comprises a support frame, a coal feeding hopper, a charging hopper and a driving motor, a coal feeding hopper is connected to the inner wall of the supporting frame, a feeding hopper is connected to the upper portion of the inner wall of the coal feeding hopper in a penetrating mode, a driving motor is connected to the upper surface of the coal feeding hopper through a motor base, the output end of the driving motor penetrates through the inner wall of the coal feeding hopper and is connected with a disturbance rod through a coupler, and a scraping mechanism is arranged on one side of the disturbance rod. And the bottom of the coal feeding hopper is connected with a discharge valve. According to the coal feeding device for pulverized coal weighing, an electric push rod is started to enable a scraping plate to abut against the inner wall of a coal feeding hopper, then a driving motor is started to drive the scraping plate to scrape the inner wall of the coal feeding hopper, then the electric push rod is started to pull the scraping plate to move away from the inner wall of the coal feeding hopper, then a motor is started to drive the scraping plate to vibrate, and pulverized coal on the scraping plate is vibrated off; therefore, the coal feeding device for weighing the pulverized coal can prevent material residues.

Description

Technical Field

[0001] This utility model relates to the technical field of coal feeding devices, specifically a coal feeding device for weighing pulverized coal. Background Technology

[0002] When using pulverized coal, it is necessary to control the amount of pulverized coal injected. Usually, a weighing device is used to weigh the pulverized coal in order to control the amount of pulverized coal injected. When weighing the pulverized coal, a coal feeding device is needed to feed it. However, the existing coal feeding device still has certain defects in use, such as:

[0003] Publication number CN212424505U discloses a coal feeding device for weighing pulverized coal, comprising a main body, an inlet, an outlet, and a coal scale. The main body has an inlet, and the outlet is located at the bottom of the inlet. The coal scale is installed at the bottom of the outlet. A cleaning device is installed inside the inlet, and an anti-clogging device is installed inside the outlet. The cleaning device includes a first rocker arm, a first movable rod, a support rod, a first bevel gear, a second bevel gear, a connecting rod, a threaded rod, a limiting plate, a cleaning rod, a fixing rod, and a fixing sleeve. This device allows for easier and faster cleaning of the inlet without soiling the workers. The anti-clogging device prevents blockage at the outlet, and even if blockage occurs, it can be easily and quickly cleaned.

[0004] The document states that the cleaning rod moves up and down by rotating the threaded rod to clean the feed inlet. However, the feed inlet is conical in shape, and the cleaning rod can only clean the upper inner wall with a larger diameter, leaving a lot of coal dust. Therefore, a coal feeding device for weighing coal dust is proposed to solve the above problem. Utility Model Content

[0005] The purpose of this invention is to provide a coal feeding device for weighing pulverized coal, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a coal feeding device for weighing pulverized coal, comprising: a support frame, a coal feeding hopper, a material feeding hopper, and a drive motor;

[0007] A coal feeding hopper is connected to the inner wall of the support frame. A feeding hopper is connected through the upper part of the inner wall of the coal feeding hopper. A drive motor is connected to the upper surface of the coal feeding hopper through a motor base. The output end of the drive motor is connected to a disturbance rod through the inner wall of the coal feeding hopper through a coupling. A scraping mechanism is provided on one side of the disturbance rod. A discharge valve is connected to the bottom of the coal feeding hopper. A spreading mechanism is provided below the discharge valve.

[0008] The scraping mechanism includes: a slide rod, a scraper, an electric push rod, a housing, a motor, a disc, a connecting rod, and a push plate. One side of the slide rod has a slot for receiving material. The slide rod is slidably connected to the inner wall of the slot through a sealing cylinder. The scraper is bolted to one side of the slide rod. The scraper abuts against the inner wall of the coal feeding hopper through a rubber pad.

[0009] Preferably, an electric actuator is connected to one side of the inner wall of the slot of the disturbance rod, and the moving end of the electric actuator is connected to the outer shell by bolts.

[0010] Preferably, a motor is connected to the inner wall of the housing via a motor mount, and the output end of the motor is connected to a disc via a coupling.

[0011] Preferably, the front part of the disk is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to a push plate. The push plate slides through one side of the inner wall of the outer shell and is connected to one side of the slide rod.

[0012] Preferably, the material spreading mechanism includes: a riser, a stepper motor, a pinion, a large gear ring, a lifting plate, a conveyor, a support plate, a threaded rod, and a servo motor. The riser is rotatably connected to the lower part of the discharge valve. A stepper motor is connected to one side of the riser via a motor mount. The output end of the stepper motor is connected to a pinion via a coupling. A large gear ring is meshed with one side of the pinion. The large gear ring is connected to the outside of the discharge valve.

[0013] Preferably, the front and rear of the riser are fixedly connected to lifting plates, and a conveyor abuts between the two sets of lifting plates.

[0014] Preferably, the front and rear of the conveyor are each bolted together with two sets of support plates, and a threaded rod is rotatably inserted through the two sets of support plates. The threaded rod is threadedly connected to the lifting plate.

[0015] Preferably, a servo motor is connected to one side of the threaded rod via a coupling, and the servo motor is connected to the conveyor via a motor mount.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This coal powder weighing and feeding device uses an electric actuator to bring the scraper into contact with the inner wall of the feeding hopper. Then, the drive motor is started to drive the scraper to clean the inner wall of the feeding hopper. Next, the electric actuator is started to pull the scraper away from the inner wall of the feeding hopper, and then the motor is started to drive the scraper to vibrate, shaking off the coal powder on the scraper. This prevents material residue in the coal powder weighing and feeding device. The specific details are as follows:

[0017] 1. By starting the electric actuator, the outer casing is pushed to bring the scraper into contact with the inner wall of the coal feeding hopper. Then, the drive motor is started to rotate the disturbance rod. The disturbance rod drives the scraper to scrape the inner wall of the coal feeding hopper, removing the residual coal powder. Then, the electric actuator is started to pull the scraper away from the inner wall of the coal feeding hopper. Then, the motor is started to rotate the disc. The disc drives the slide rod to extend and retract back and forth, causing the scraper to vibrate and shake off the coal powder on the scraper. This coal powder is then weighed and used in the coal feeding device to prevent material residue.

[0018] 2. The coal powder discharged from the discharge valve is scattered by the conveyor, and then the stepper motor is started to drive the conveyor to rotate and scatter the coal powder. At the same time, the servo motor is started to drive the conveyor to move between the two sets of lifting plates. The scattering radius of the conveyor is adjusted to spread the scattered coal powder evenly in the weighing equipment, so that the coal powder can be weighed and the coal feeding device prevents the material from accumulating. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the main cross-sectional structure of the coal feeding hopper of this utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the coal feeding hopper of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the electric actuator of this utility model;

[0023] Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of the outer shell of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the conveyor of this utility model.

[0025] In the diagram: 1. Support frame; 2. Coal feeding hopper; 3. Feeding hopper; 4. Drive motor; 5. Disruptor rod; 6. Scraper mechanism; 601. Slide rod; 602. Scraper; 603. Electric actuator; 604. Housing; 605. Motor; 606. Disc; 607. Connecting rod; 608. Push plate; 7. Discharge valve; 8. Spreading mechanism; 801. Riser; 802. Stepper motor; 803. Pinion; 804. Large gear ring; 805. Lifting plate; 806. Conveyor; 807. Support plate; 808. Threaded rod; 809. Servo motor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 This utility model provides a technical solution: a coal feeding device for weighing pulverized coal, comprising: a support frame 1, a coal feeding hopper 2, a feeding hopper 3, and a drive motor 4; the coal feeding hopper 2 is connected to the inner wall of the support frame 1, the feeding hopper 3 is connected through the upper part of the inner wall of the coal feeding hopper 2, and the drive motor 4 is connected to the upper surface of the coal feeding hopper 2 through a motor base; the output end of the drive motor 4 is connected to a disturbance rod 5 through the inner wall of the coal feeding hopper 2 via a coupling; a scraping mechanism 6 is provided on one side of the disturbance rod 5; a discharge valve 7 is connected to the bottom of the coal feeding hopper 2, and a spreading mechanism 8 is provided below the discharge valve 7; the scraping mechanism 6 includes: a sliding rod 601, a scraper 602, an electric push rod 603, a housing 604, a motor 605, a disc 606, a connecting rod 607, and a push plate 608; the disturbance rod 5... A slot for storage is provided on one side. A sliding rod 601 is slidably connected to the inner wall of the slot via a sealing cylinder. A scraper 602 is bolted to one side of the sliding rod 601. The scraper 602 abuts against the inner wall of the coal feeding hopper 2 via a rubber pad. An electric push rod 603 is connected to one side of the inner wall of the slot of the disturbance rod 5. The moving end of the electric push rod 603 is bolted to a housing 604. A motor 605 is connected to the inner wall of the housing 604 via a motor base. The output end of the motor 605 is connected to a disc 606 via a coupling. A connecting rod 607 is rotatably connected to the front of the disc 606. A push plate 608 is rotatably connected to the other end of the connecting rod 607. The push plate 608 slides through one side of the inner wall of the housing 604 and is connected to one side of the sliding rod 601.

[0028] In practice, the electric actuator 603 is activated to move the outer casing 604 and the slide bar 601, bringing the scraper 602 into contact with the inner wall of the coal feeding hopper 2. Then, the drive motor 4 is activated to rotate the disturbance rod 5, which in turn drives the scraper 602 to scrape the inner wall of the coal feeding hopper 2, removing any residual coal powder. Next, the electric actuator 603 is activated to pull the scraper 602 away from the inner wall of the coal feeding hopper 2. Then, the motor 605 is activated to rotate the disc 606, which in turn drives the connecting rod 607 to push the pusher plate 608 and the slide bar 601 back and forth. The slide bar 601 causes the scraper 602 to vibrate, shaking off the coal powder on the scraper 602. This coal powder is then weighed and used in the coal feeding device to prevent material residue.

[0029] See Figures 1-3 and Figure 6It is known that the material spreading mechanism 8 includes: a riser 801, a stepper motor 802, a pinion 803, a large gear ring 804, a lifting plate 805, a conveyor 806, a support plate 807, a threaded rod 808, and a servo motor 809. The riser 801 is rotatably connected to the lower part of the discharge valve 7. One side of the riser 801 is connected to the stepper motor 802 via a motor mount. The output end of the stepper motor 802 is connected to the pinion 803 via a coupling. One side of the pinion 803 is meshed with the large gear ring 804. The large gear ring 804 is connected to... Connected to the outside of the discharge valve 7, the front and rear of the riser 801 are fixedly connected to the lifting plate 805. The conveyor 806 is abutted between the two sets of lifting plates 805. The front and rear of the conveyor 806 are connected to two sets of support plates 807 by bolts. The threaded rod 808 is rotatably inserted through the two sets of support plates 807. The threaded rod 808 is threadedly connected to the lifting plate 805. One side of the threaded rod 808 is connected to the servo motor 809 through a coupling. The servo motor 809 is connected to the conveyor 806 through a motor mount.

[0030] In practice, a conveyor 806 is used to spread the coal powder discharged from the discharge valve 7. Then, a stepper motor 802 is started to drive the pinion 803 to rotate along the large gear ring 804, thereby driving the conveyor 806 to rotate and spread the coal powder. At the same time, a servo motor 809 is started to drive the threaded rod 808 to rotate within the support plate 807 and the lifting plate 805, thereby driving the conveyor 806 to move between the two sets of lifting plates 805, adjusting the spreading radius of the conveyor 806, and spreading the coal powder evenly in the weighing equipment. The coal powder is then weighed using a coal feeding device to prevent material accumulation.

[0031] In summary: When using this coal powder weighing and feeding device, firstly, coal powder is added from the feeding hopper 3 into the feeding hopper 2. The coal powder weighing device is placed below the servo motor 809. Then, the controller installed on the support frame 1 is operated to open the discharge valve 7 and start the drive motor 4 to rotate the disturbance rod 5, causing the coal powder in the feeding hopper 2 to fall onto the conveyor 806. The conveyor 806 sprinkles the coal powder onto the coal powder weighing device. At the same time, the stepper motor 802 drives the conveyor 806 to rotate, and the servo motor 809 drives the conveyor 806 to move slowly, allowing the conveyor 806 to rotate while changing its radius to sprinkle the coal powder. When the sprinkling radius of the conveyor 806 is large, the speed of the stepper motor 802 decreases, and vice versa, causing the coal powder to accumulate into a slope, affecting the discharge. When the coal powder weighing device detects that the coal powder has reached the required weight, the electrical equipment of the entire device is shut down. The contents not described in detail in this description belong to the prior art known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A coal feeding device for weighing pulverized coal, comprising: The support frame (1), the coal feeding hopper (2), the material feeding hopper (3), and the drive motor (4) are characterized in that; A coal feeding hopper (2) is connected to the inner wall of the support frame (1). A feeding hopper (3) is connected through the upper part of the inner wall of the coal feeding hopper (2). A drive motor (4) is connected to the upper surface of the coal feeding hopper (2) through a motor seat. The output end of the drive motor (4) is connected to a disturbance rod (5) through the inner wall of the coal feeding hopper (2) through a coupling. A scraping mechanism (6) is provided on one side of the disturbance rod (5). A discharge valve (7) is connected to the bottom of the coal feeding hopper (2). A spreading mechanism (8) is provided below the discharge valve (7). The scraping mechanism (6) includes: a slide rod (601), a scraper (602), an electric push rod (603), a housing (604), a motor (605), a disc (606), a connecting rod (607), and a push plate (608). A slot for receiving is provided on one side of the disturbance rod (5). The slide rod (601) is slidably connected to the inner wall of the slot through a sealing cylinder. The scraper (602) is bolted to one side of the slide rod (601). The scraper (602) abuts against the inner wall of the coal feeding hopper (2) through a rubber pad.

2. The coal feeding device for weighing pulverized coal according to claim 1, characterized in that: An electric actuator (603) is connected to one side of the inner wall of the slot of the disturbance rod (5), and the moving end of the electric actuator (603) is connected to the outer shell (604) by bolts.

3. A coal feeding device for weighing pulverized coal according to claim 2, characterized in that: A motor (605) is connected to the inner wall of the outer casing (604) via a motor mount, and the output end of the motor (605) is connected to a disc (606) via a coupling.

4. A coal feeding device for weighing pulverized coal according to claim 3, characterized in that: The front part of the disk (606) is rotatably connected to a connecting rod (607), and the other end of the connecting rod (607) is rotatably connected to a push plate (608). The push plate (608) slides through one side of the inner wall of the outer shell (604), and the push plate (608) is connected to one side of the slide rod (601).

5. A coal feeding device for weighing pulverized coal according to claim 1, characterized in that: The material spreading mechanism (8) includes: a riser (801), a stepper motor (802), a pinion (803), a large gear ring (804), a lifting plate (805), a conveyor (806), a support plate (807), a threaded rod (808), and a servo motor (809). The riser (801) is rotatably connected to the bottom of the discharge valve (7). The riser (801) is connected to a stepper motor (802) on one side via a motor mount. The output end of the stepper motor (802) is connected to a pinion (803) via a coupling. The pinion (803) is meshed with a large gear ring (804) on one side. The large gear ring (804) is connected to the outside of the discharge valve (7).

6. A coal feeding device for weighing pulverized coal according to claim 5, characterized in that: The front and rear of the riser (801) are fixedly connected with lifting plates (805), and a conveyor (806) abuts between the two sets of lifting plates (805).

7. A coal feeding device for weighing pulverized coal according to claim 6, characterized in that: The front and rear of the conveyor (806) are each bolted together with two sets of support plates (807). A threaded rod (808) is rotatably inserted through the two sets of support plates (807), and the threaded rod (808) is threadedly connected to the lifting plate (805).

8. A coal feeding device for weighing pulverized coal according to claim 7, characterized in that: One side of the threaded rod (808) is connected to a servo motor (809) via a coupling, and the servo motor (809) is connected to the conveyor (806) via a motor mount.

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