Continuous silicon powder discharging device

Abstract

The utility model discloses a continuous silicon powder blanking device, which relates to the technical field of silicon powder blanking and comprises a feeder shell, a driving motor is fixedly mounted on one side of the feeder shell, a feeding port is arranged at the upper end of the feeder shell, a blanking port is fixedly mounted at the lower end of the feeder shell, and a feeding hole is formed in the lower end of the feeder shell. Blanking covers are fixedly installed on the two sides of the feeder shell correspondingly, a feeding mechanism is installed on the feeder shell and comprises a hollow driving shaft movably installed in the feeder shell, an annular hopper is fixedly installed on the hollow driving shaft, a blowing opening is formed in the bottom of the annular hopper, and the blowing opening is communicated with the annular hopper. A cleaning air pipe is rotationally installed in the hollow driving shaft, an air outlet is formed in the bottom of the cleaning air pipe, the cleaning air pipe is connected with an air pipeline, and a knocking mechanism is arranged on the blanking cap. According to the continuous silicon powder discharging device, the feeding mechanism and the knocking mechanism are used in cooperation, and the annular hopper can be rapidly cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon powder feeding, in particular to a continuous silicon powder feeding device. Background Technique

[0002] In the process of polysilicon production, silicon powder needs to be added into the synthesis furnace. For this purpose, a rotary feeder is provided on the pipeline for transporting silicon powder. A rotary feeder is a material conveying device widely used in industries such as mining, building materials, and chemical industry. It continuously and smoothly conveys materials from the bottom of the container to the lower discharge port through a rotating spiral scraper or annular hopper, realizing automatic feeding. This device has the advantages of compact structure, stable operation, high conveying efficiency, etc., can effectively avoid material blockage, and improve production efficiency and product quality. At the same time, the rotary feeder also has the function of adjusting the amount of materials. By adjusting the spiral speed or the angle of the turntable, the material flow can be accurately controlled to meet different production requirements.

[0003] The rotary feeder can be used to quantitatively add silicon powder. However, in the actual process, the silicon powder with high humidity is easy to get stuck inside the rotary hopper. It is inconvenient to clean the silicon powder stuck inside the rotary hopper, and it will affect the normal operation of the equipment. Therefore, a continuous silicon powder feeding device is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a continuous silicon powder feeding device to solve the problem that it is inconvenient to clean the silicon powder stuck inside the rotary hopper in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A continuous silicon powder feeding device, including a feeder housing, a driving motor is fixedly installed on one side of the feeder housing, a feeding port is arranged at the upper end of the feeder housing, a discharging port is fixedly installed at the lower end of the feeder housing, blanking plugs are fixedly installed on both sides of the feeder housing, a feeding mechanism is installed on the feeder housing, the feeding mechanism includes a hollow driving shaft movably installed inside the feeder housing, an annular hopper is fixedly installed on the hollow driving shaft, a purging port is opened at the bottom of the annular hopper, a cleaning air pipe is rotatably installed inside the hollow driving shaft, an air outlet is opened at the bottom of the cleaning air pipe, a gas pipeline is connected to the cleaning air pipe, a knocking mechanism is arranged on the blanking plug, the knocking mechanism includes a positioning base fixedly installed on the blanking plug, a rotating shaft is movably installed on the positioning base, a swing arm is fixedly installed at the middle position of the rotating shaft, a knocking hammer is fixedly installed at the lower end of the swing arm, a large gear disc is fixedly installed at one end of the rotating shaft, a servo motor is fixedly installed at the upper end of the positioning base, a small gear disc is fixedly installed at the output end of the servo motor, and the driving motor can drive the small gear disc to rotate.

[0006] Preferably, one end of the cleaning air pipe is provided with a connector, and the gas pipeline is connected to the cleaning air pipe through the connector, and the gas pipeline can transport gas into the cleaning air pipe.

[0007] Preferably, a bearing is provided on the hollow drive shaft, and the hollow drive shaft is movably installed in the feeder housing through the bearing, and the drive motor can drive the hollow drive shaft to rotate.

[0008] Preferably, the annular hopper is movably installed in the annular hopper through the hollow drive shaft, a coupling is provided at the output end of the drive motor, and one end of the hollow drive shaft is fixed to the output end of the drive motor through the coupling, and the hollow drive shaft can drive the annular hopper to rotate.

[0009] Preferably, a motor frame is provided on the servo motor, and the servo motor is fixed to the upper end of the positioning base through the motor frame.

[0010] Preferably, a movable hole is provided on the positioning base, and the rotating shaft is movably installed on the positioning base through the movable hole.

[0011] Preferably, the swing arm is movably installed on the positioning base through the rotating shaft, the knocking hammer is movably installed on one side of the annular hopper through the swing arm, and the small gear disk is movably installed above the large gear disk through the servo motor, and the small gear disk can drive the large gear disk to rotate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. In this application, the drive motor can drive the annular hopper to rotate, so as to realize automatic feeding. At the same time, gas can be filled into the cleaning air pipe through the gas pipeline. During the rotation of the annular hopper, the air outlet will be aligned with the purging port, so that the gas in the cleaning air pipe is ejected through the purging port to clean the residual materials on the inner wall of the annular hopper.

[0014] 2. In this application, the servo motor can drive the small gear disk to rotate. After the small gear disk rotates, it will drive the large gear disk to rotate, thereby driving the rotating shaft to rotate, causing the swing arm to lift outward. After the swing arm lifts outward to a certain height, the small gear disk is separated from the large gear disk, causing the knocking hammer to fall and knock on the annular hopper, forcing the annular hopper to vibrate. After the annular hopper vibrates, the materials stuck inside it will be shaken off, thereby cleaning the annular hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the partial structure of the present utility model;

[0017] Figure 3Schematic diagram of the feeding mechanism of the present utility model;

[0018] Figure 4 Partial structure cross-sectional view of the present utility model;

[0019] Figure 5 Schematic diagram of the knocking mechanism of the present utility model.

[0020] Reference numerals in the figure: 1, driving motor; 2, feeder housing; 3, feed inlet; 4, plug cover; 5, discharge port; 6, feeding mechanism; 601, gas pipeline; 602, connector; 603, cleaning air pipe; 604, annular hopper; 605, purge port; 606, hollow drive shaft; 607, air outlet; 7, knocking mechanism; 701, positioning base; 702, swing arm; 703, knocking hammer; 704, rotating shaft; 705, motor bracket; 706, servo motor; 707, small gear disk; 708, large gear disk. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0022] As Figure 1 and Figure 2 shown, the present utility model provides a technical solution for a continuous silicon powder feeding device, including a feeder housing 2, a driving motor 1 fixedly installed on one side of the feeder housing 2, a feed inlet 3 provided at the upper end of the feeder housing 2, a discharge port 5 fixedly installed at the lower end of the feeder housing 2, plug covers 4 fixedly installed on both sides of the feeder housing 2, a feeding mechanism 6 installed on the feeder housing 2, and a knocking mechanism 7 provided on the plug cover 4. By the combined use of the feeding mechanism 6 and the knocking mechanism 7, the annular hopper 604 can be quickly cleaned.

[0023] As Figure 2 , Figure 3 and Figure 4As shown, the feeding mechanism 6 includes a hollow drive shaft 606 movably installed in the feeder housing 2. An annular hopper 604 is fixedly installed on the hollow drive shaft 606. A purge port 605 is provided at the bottom of the annular hopper 604. A cleaning air pipe 603 is rotatably installed in the hollow drive shaft 606. An air outlet 607 is provided at the bottom of the cleaning air pipe 603. A gas pipeline 601 is connected to the cleaning air pipe 603. One end of the cleaning air pipe 603 is provided with a connector 602. The gas pipeline 601 is connected to the cleaning air pipe 603 through the connector 602. Bearings are provided on the hollow drive shaft 606, and the hollow drive shaft 606 is movably installed in the feeder housing 2 through the bearings.

[0024] Specifically, the driving motor 1 can drive the annular hopper 604 to rotate, thereby realizing automatic feeding. At the same time, air can be inflated into the cleaning air pipe 603 through the gas pipeline 601. During the rotation of the annular hopper 604, the air outlet 607 will be aligned with the purge port 605, so that the gas in the cleaning air pipe 603 is ejected through the purge port 605 to clean the residual materials on the inner wall of the annular hopper 604.

[0025] As Figure 3 and Figure 4 As shown, the knocking mechanism 7 includes a positioning base 701 fixedly installed on the plug 4. A rotating shaft 704 is movably installed on the positioning base 701. A swing arm 702 is fixedly installed at the middle position of the rotating shaft 704. A knocking hammer 703 is fixedly installed at the lower end of the swing arm 702. A large gear 708 is fixedly installed at one end of the rotating shaft 704. A servo motor 706 is fixedly installed at the upper end of the positioning base 701. A small gear 707 is fixedly installed at the output end of the servo motor 706. A motor bracket 705 is provided on the servo motor 706, and the servo motor 706 is fixed to the upper end of the positioning base 701 through the motor bracket 705.

[0026] Specifically, the servo motor 706 can drive the small gear 707 to rotate. After the small gear 707 rotates, it will drive the large gear 708 to rotate, thereby driving the rotating shaft 704 to rotate, causing the swing arm 702 to lift outward. After the swing arm 702 lifts outward to a certain height, the small gear 707 is separated from the large gear 708, causing the knocking hammer 703 to fall and knock on the annular hopper 604, forcing the annular hopper 604 to vibrate. After the annular hopper 604 vibrates, the materials stuck inside it will be shaken off, thereby cleaning the annular hopper 604.

[0027] Working principle: When in use, first connect the feeder housing 2 to the feeding pipe. When feeding, the driving motor 1 can be started. After starting the driving motor 1, it will drive the hollow driving shaft 606 to rotate. After the hollow driving shaft 606 rotates, it will drive the annular hopper 604 to rotate. After the annular hopper 604 rotates, automatic feeding can be realized. The driving motor 1 can be frequency-converted to adjust the feeding amount. When the material gets stuck in the annular hopper 604, the servo motor 706 can be controlled to rotate. After the servo motor 706 rotates, it will drive the small gear disk 707 to rotate. After the small gear disk 707 rotates, it will drive the large gear disk 708 to rotate. After the large gear disk 708 rotates, it will drive the rotating shaft 704 to rotate, causing the swing arm 702 to lift outward. After the swing arm 702 lifts outward to a certain height, the small gear disk 707 is separated from the large gear disk 708. After the small gear disk 707 is separated from the large gear disk 708, the knocking hammer 703 will knock on the annular hopper 604, causing the annular hopper 604 to vibrate. After the annular hopper 604 vibrates, the material stuck inside it will be shaken off, thereby cleaning the annular hopper 604. At the same time, air can be filled into the cleaning air pipe 603 through the gas pipe 601. During the rotation of the annular hopper 604, the air outlet 607 will be aligned with the purging port 605. After the air outlet 607 is aligned with the purging port 605, the gas in the cleaning air pipe 603 will be ejected through the purging port 605. The ejected air flow will blow towards the inner wall of the annular hopper 604, thereby cleaning the residual material on the inner wall of the annular hopper 604 and improving the cleaning effect.

[0028] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A continuous silicon powder feeding device, comprising a feeder housing (2), a drive motor (1) is fixedly installed on one side of the feeder housing (2), a feed inlet (3) is arranged at the upper end of the feeder housing (2), a discharge port (5) is fixedly installed at the lower end of the feeder housing (2), and plug covers (4) are fixedly installed on both sides of the feeder housing (2), characterized in that: A feeding mechanism (6) is installed on the feeder housing (2). The feeding mechanism (6) includes a hollow drive shaft (606) movably installed inside the feeder housing (2). An annular hopper (604) is fixedly installed on the hollow drive shaft (606). A purge port (605) is formed at the bottom of the annular hopper (604). A cleaning air pipe (603) is rotatably installed inside the hollow drive shaft (606). An air outlet (607) is formed at the bottom of the cleaning air pipe (603). A gas pipeline (601) is connected to the cleaning air pipe (603). A knocking mechanism (7) is formed on the plug cover (4). The knocking mechanism (7) includes a positioning base (701) fixedly installed on the plug cover (4). A rotating shaft (704) is movably installed on the positioning base (701). A swing arm (702) is fixedly installed at the middle position of the rotating shaft (704). A knocking hammer (703) is fixedly installed at the lower end of the swing arm (702). A large gear disc (708) is fixedly installed at one end of the rotating shaft (704). A servo motor (706) is fixedly installed at the upper end of the positioning base (701). A small gear disc (707) is fixedly installed at the output end of the servo motor (706).

2. The continuous silicon powder feeding device according to claim 1, characterized in that: One end of the cleaning air pipe (603) is provided with a connector (602), and the gas pipeline (601) is connected to the cleaning air pipe (603) through the connector (602).

3. The continuous silicon powder feeding device according to claim 2, characterized in that: Bearings are provided on the hollow drive shaft (606), and the hollow drive shaft (606) is movably installed inside the feeder housing (2) through the bearings.

4. A continuous silicon powder feeding device according to claim 3, characterized in that: The annular hopper (604) is movably installed inside the annular hopper (604) through the hollow drive shaft (606). A coupling is provided at the output end of the drive motor (1). One end of the hollow drive shaft (606) is fixedly connected to the output end of the drive motor (1) through the coupling.

5. The continuous silicon powder feeding device according to claim 4, characterized in that: A motor bracket (705) is provided on the servo motor (706), and the servo motor (706) is fixed to the upper end of the positioning base (701) through the motor bracket (705).

6. The continuous silicon powder feeding device according to claim 1, wherein: An activity hole is formed in the positioning base (701), and the rotating shaft (704) is movably installed on the positioning base (701) through the activity hole.

7. A continuous silicon powder feeding device according to claim 1, characterized in that: The swing arm (702) is movably installed on the positioning base (701) through the rotating shaft (704). The knocking hammer (703) is movably installed on one side of the annular hopper (604) through the swing arm (702). The small gear disc (707) is movably installed above the large gear disc (708) through the servo motor (706).

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